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Bagaskara Roshardwadi, Batubara bagaskara roshardwiadi, Minerba, Mineral Batubara Bagaskara, Bagas, Bagaskara Roshardwadi, Bagaskara, Bagaskara , Batubara Laboratorioum, Tambang batubara, Mining Batubara, Bagaskara Roshardwiadi, Bagaskara.R.ST Mineral Batubara, Laboratorium Batubara Bagaskara.
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M in e r a l B a tu b a r a
D i S u s u n O le h :
B a g a s k a r a .R . S T
S TR A TEG IC B U S IN E SS U N IT M IN ER A L
P T . (P E R S E R O ) S U P E R IN T E N D IN G C O M P A N Y O F IN D O N E S IA C a b . S A M A R IN D A
J L M T . H A R Y O N O N O 1 9 9 S a m a r in d a 7 5 1 2 6 . I N D O N E S I A
P h o n e (6 2 -5 4 1 ) 7 3 7 1 9 1 F a x : (6 2 -5 4 1 ) 2 0 5 8 6 5
M in e r a l B a tu b a r a 2 0 1 2
K a ta P e n g a n ta r
D a la m p e n g e n a la n d a n p e m b e la ja r a n t e n t a n g s u p e r in t e n d in g m a u p u n k o n t r o l k u a lit a s d a n k u a n t it a s
b a t u b a r a d a r i m u la i e x p lo r a s i h in g g a e x p lo it a s i b a h k a n s a m p a i t r a n s h ip m e n t . U n t u k it u p e n u lis m e n u lis
s e b u a h m a k a la h in i y a n g b e r ju d u l “ M in e r a l B a t u b a r a ” d e n g a n b a t a s a n - b a t a s a n y a n g je la s ,h a n y a s in g k a t
m e m b ic a r a k a n t e n t a n g b a t u b a r a n y a s e n d ir i d a r i m u la i p a d a la p a n g a n p r o d u k s i s a m p a i d e n g a n p r e p a r a s i
h in g g a a n a lis a d e n g a n M e t o d e S t a n d a r d y a n g a d a m e n g a c u p a d a S is t e m m a n a je m e n IS O .
P e n u lis a n m a k a la h in i m e r u p a k a n p e n d a la m a n m e n g e n a i b a t u b a r a d a n ju g a m e r u p a k a n s u a t u s a r a n a
d a la m p e la t ih a n s in g k a t y a n g d i b e r ik a n o le h P T . S u c o f in d o C a b .S a m a r in d a s e la k u p e m b e r i t u g a s d a n
p e n y e d ia t e m p a t . D i s a m p in g it u , p e n u lis a n in i ju g a u n t u k m e n g k o n t r o l d a n m e n g in g a t k e m b a li d a la m
s u a t u w u ju d m a k a la h y a n g m e r u p a k a n r a n g k u m a n d a la m k e g ia t a n o b s e r v a s i d a n m o n it o r in g b a ik d i
P T .S u c c o f in d o c a b . S a m a r in d a s e b a g a i c o a l s e r v ic e s m a u p u n d i s it e a r e a k h u s u s n y a dondang dan
s e b a k is .
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S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
D a fta r T a b e l
T a b e l 1 .1 L it h o t y p e M a c e r a l
T a b e l 2 .1 K la s if ik a s i ju m la h In c r e m e n t d a n T o n a g e b e r d a s a r k a n m e t o d e s t a n d a r .
T a b e l 2 .2 T a b e l K o n v e r s i B a s is P e la p o r a n .
T a b e l 2 .3 k la s if ik a s i je n is d a n t in g k a t a n b a t u b a r a b e r d a s a r k a n p e r b a n d in g a n F C / V M .
M in e r a l B a tu b a r a 2 0 1 2
D a fta r G a m b a r & P h o to
G a m b a r 1 .1 D e s ig n S e d e r h a n a a lir e x p lo r a s i B a t u b a r a .
G a m b a r 1 .2 D e s ig n S e d e r h a n a a lir e x p lo r a s i k e P r o d u k s i B a t u b a r a .
G a m b a r 1 .3 P e n im b u n a n p r o d u k b a t u b a r a h a s il c r u s h in g ( s t o c k p ile ) .
G a m b a r 1 .4 S a m p lin g b a t u b a r a p a d a f a llin g s t r e a m m e la lu i c o n v e y o r d a la m p e r ja la n a n k e b a r g e .
G a m b a r 1 .5 P e n g a n g k u t a n b a t u b a r a d e n g a n e x c a v a t o r 5 0 0 k e D u m p in g T r u c k .
G a m b a r 2 .1 H a m m e r M ill.
G a m b a r 2 .2 Ja w C r u s h e r .
G a m b a r 2 .3 R a y m o n d M ill.
G a m b a r 2 .4 C o f e e m ill d a n R o t a p S ie v e .
G a m b a r 2 .5 R s d u n t u k u k u r a n 1 0 m m d a n 4 ,7 5 m m .
G a m b a r 2 .6 B a la n c e D ig ita l 1 5 0 k g d a n D r y e r O v e n ,T r a y .
G a m b a r 2 .7 T im b a n g a n b a la n c e d ig ita l 6 .0 k g .
G a m b a r 2 .8 . A y a k a n ( S c r e e n s iz e ) 2 0 0 µ m , 8 0 µ m d a n - 7 5 µ m .
G a m b a r 3 .1 M e m e r t O v e n u n tu k a n a lis a R M d a n M in im u m F r e e S p a c e u n tu k M o is tu r e .
G a m b a r 3 .2 M e s in H G I ( H a r d g r o v e G r in d a b ilit y In d e x ) .
G a m b a r 3 .3 . A s h F u r n a c e (A A F ) , a la t p e m b a k a r a n u n t u k m e la k u k a n p e n g u jia n a s h c o n t e n t .
G a m b a r 3 .4 . W a t e r b a t h d a n p ig n o m e t e r D e n s ik a t o r .
G a m b a r 3 .4 F u r n a c e V M u n t u k p e n g u jia n v o la t ile m a t t e r .
G a m b a r 3 . 5 M e s in L e c o A n a ly z e r S - 1 4 4 D R
G a m b a r 3 .6 C S N B u r n e r d a n K r u s ib le C S N .
G a m b a r 3 .7 L e c o C H N A n a ly s e r .
G a m b a r 3 .8 A la t A A S ( A t o m ic A b s o r b t io n S p e k t r o p h o t o m e t e r ) d a n L a r u t a n S t a n d a r .
G a m b a r 3 .9 C a lo r im e t e r P a r r a la t u n t u k p e n g u jia n n ila i k a lo r i p a d a s a t u a n m a s s a s a m p le b a t u b a r a .
G a m b a r 4 .1 D ia g r a m A lir K e g ia t a n P e r t a m b a n g a n K u a lit a s P r o d u k .
G a m b a r 4 .2 D ia g r a m A lir d a la m m e la k u k a n p e n e lu s u r a n p e n g u k u r a n p a d a a la t . iii
G a m b a r 4 .3 T ip e illu s t r a s i a k u r a s i d a n p r e s is i p a d a p e n g u k u r a n .
G a m b a r 4 .3 h u b u n g a n a n t a r a s is t e m in t e r n a t io n a l s t a n d a r d d g n n a s io n a l.
S u c c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 5 .1 Illu s t r a s i L o a d in g c o a l c a r g o p a d a p o r t .
G a m b a r 5 .2 Illu s t r a s i k o n d is i m a r k y a n g d ig u n a k a n u n t u k d r a u g h t S u r v e y .
G a m b a r 5 .3 Illu s t r a s i p e r h it u n g a n a w a l d r a u g h t m a r k .
G a m b a r 5 .4 D ia g r a m a lir d r a u g h t S u r v e y p a d a t o n g k a n g a t a u v e s s e l.
G a m b a r 5 .5 P r o s e d u r P e la k s a n a a n d r a u g h t s u r v e y .
iv
S u c c o f in d o S B U M in e r a l | B a g a s k a r a .R
D a fta r Is i
K a ta P e n g a n ta r ..................................................................................................................... ( i )
D a f ta r T a b e l..................................................................................................................................... ( ii )
D a f ta r G a m b a r ................................................................................................................................. ( iii)
I. P e n d a h u lu a n .......................................................................................................................... 1
I .1 L a ta r B e la k a n g ................................................................... ...................................... 1
I .2 M a k s u d d a n T u ju a n .................................................................................................. 2
I .3 L o k a s i T e m p a t ....................................................................................................... 2
I .4 P r o f ile P T . S u c o f in d o .................................................................. ........................... 2
.
I I . B a tu b a r a ...............................................................................................................................3
I I .1 . S a m p lin g ............................................................................................................... 9
I I .2 . P r e p a r a s i................................................................................................................ 1 6
I I .3 . A n a lis a b a tu b a r a .................................................................................................... 2 4
I I .4 . K o n tr o l K u a lita s d a n K u a n tita s ............................................................................ 3 4
I I .5 . D r a u g h t S u r v e y ......................................................................................................4 6
I I I . P e n u tu p ................................................................................................................................5 5
M in e r a l B a tu b a r a 2 0 1 2
P e n d a h u lu a n
I .1 . L a ta r B e la k a n g .
B a tu b a ra m e ru p a k a n k o m o d iti y a n g d ig u n a k a n u n tu k k e b u tu h a n e n e rg y d o m e s tik d a n ju g a
p e rd a g a n g a n ( e k s p o r ) . M e n g in g a t p e n tin g n y a p e ra n b a tu b a ra d i s e k to r e n e rg y , m a k a d a ri itu p e rlu n y a
s u a tu in sta n si y a n g b e rg e ra k s e b a g a i S u p e rin te n d in g u n tu k m e n g a w a s i d a n k o n tro l k u a lita s s e rta
k u a n tita s s e m u a k e g ia ta n p e rta m b a n g a n b a tu b a ra d a ri h u lu h in g g a h ilir . D a la m k e g ia ta n s u p e rin te n d in g
d a n te s tin g s e rta m e m a s tik a n k u a lita s p ro d u k d a ri p e rta m b a n g a n d i p e rlu k a n n y a In s ta n s i a ta u p u n
le m b a g a y a n g m e m a h a m i d a n m e n g e rti b a ik s e c a ra te o ritis m a u p u n p ra k te k m e n g e n a i k e g ia ta n
p e rta m b a n g a n b a tu b a ra .
P T S u c o fin d o S B U m in e ra l u n tu k b a tu b a ra m e ru p a k a n s a la h s a tu in s ta n s i n e g a ra y a n g b e rtin d a k s e b a g a i
p ra k tis i d a la m k e g ia ta n s u p e rin te n d in g d a ri p e n g a m b ila n c o n to h (s a m p lin g ) s a m p a i d e n g a n k e p a s tia n
q u a lity ( c o a l te s tin g ) s e rta k u a n tita s b a tu b a ra d i k a p a l ( ju m la h c a rg o ) d a la m k e g ia ta n p e rta m b a n g a n
b a tu b a ra . K a re n a itu in s ta n s i te rs e b u t m e la k u k a n p e n g e n a la n a ta u s o s ia lis a s i k e p a d a m a s y a ra k a t
k h u s u s n y a p a d a p ih a k p e n a m b a n g s e la k u p e n g g u n a ja s a d a la m b e n tu k y a n g b e rm a c a m -m a c a m s e p e rti
s e m in a r d a n tra in in g s in g k a t (s h o rt c o u rs e ) a k a n ru a n g lin g k u p s e rta m a n a je m e n p e ru s a h a a n k e
in te rn a ln y a m a u p u n k e e k s te rn a l. U n tu k in te rn a ln y a s e p e rti k a ry a w a n te ta p s e rta k o n tra k P T . S u c o fin d o
s e n d iri, s e d a n g k a n u n tu k e k s te rn a ln y a a d a la h le m b a g a a ta u in s ta n s i y a n g b e rd iri d i lu a r lin g k u p o rg a n is a s i
P T .S u c o fin d o .
1
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .2 . M a k s u d d a n T u ju a n .
D a la m k e g ia ta n o b s e rv a s i d i a re a p e rta m b a n g a n b a tu b a ra s e rta p e n g u jia n d a n p re p a ra s i b a ik d i s ite
a re a a ta u p u n c a b a n g y a n g d im a k s u d k a n u n tu k m e n g e n a l d a n m e n g e ta h u i ru a n g lin g k u p k e rja P T .
S u c o fin d o d i a re a p e rta m b a n g a n , d a ri la p a n g a n e k s p lo ra s i s e p e rti p e n g a m b ila n c o n to h d i b o r ( b o r c o re
s a m p le ), p it b a tu b a ra k e R O M s a m p a i d e n g a n h a s il c ru s h in g p a d a s to c k p ile s a m p a i d e n g a n to n g k a n g
s e rta k u a lita s p ro d u k y a n g d ih a s ilk a n d a ri m a s in g -m a s in g c o n to h b a tu b a ra te rs e b u t d a la m k e g ia ta n
m e n g k o n tro l q u a lity n y a d a n q u a n tity n y a . S e d a n g k a n tu ju a n d a ri m o n ito rin g in i a d a la h a g a r p e n u lis le b ih
m e n g e ta h u i te m p a t p e n g a m b ila n p ro d u k b a tu b a ra s e rta s is te m d a n m e to d e d a la m m e n e n tu k a n k e p a s tia n
d a n m e n g k o n tro l q u a lity n y a d a n k u a n tita s .
I I .3 . L o k a s i d a n T e m p a t
D ila k s a n a k a n d i K a n to r c a b a n g S a m a r in d a ,s ite a re a D o n d a n g d a n S e b a k is S ite B e r a u
I I .4 . P r o file P T . S u c o fin d o .
P T .S u c o fin d o p e r s e r o m e r u p a k a n B a d a n U s a h a M ilik N e g a r a ( B U M N ) y a n g d id irik a n b e r d a s a rk a n S u ra t
K e p u tu s a n M e n te ri P e r e k o n o m ia n R I te rta n g g a l 2 0 S e p te m b e r 1 9 5 6 n o . 1 1 .4 6 0 a /M b e r b e n tu k p e rs e ro a n
te rb a ta s d e n g a n n a m a “ S u p e rin te n d in g C o m p a n y o f In d o n e s ia L td “ , s e d a n g k a n P T . S u c o fin d o c a b a n g
S a m a rin d a S B U m in e ra l d ib a w a h o rg a n is a s i in d u k P T . S u c o fin d o p e rs e ro . M e m ilik i s is te m m a n a je m e n
y a n g d i te ra p k a n p a d a la b o ra to riu m m e lip u ti p e n g a m b ila n s a m p le , p re p a ra s i d a n p e n g u jia n p a d a
k o m o d iti b a tu b a ra . L a b o ra to riu m m e la k s a n a k a n p e n g u jia n u n tu k m e m e n u h i p e rs y a ra ta n s ta n d a rd
IS O /IE C 1 7 0 2 5 :2 0 0 8 .
2
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
B a tu b a ra
B a t u b a r a a d a la h b a t u a n s e d im e n o r g a n ic y a n g t e r d ir i d a r i u n s u r c a r b o n , n it r o g e n , h y d r o g e n ,
o x g e n s e r t a u n s u r - u n s u r la in s e p e r t i s u lf u r d a n m in e r a l ik u t a n n y a y a n g h a d ir d a la m ju m la h y a n g k e c il (
V a n K r e v e le n , 1 9 6 1 ; G lu s k o t e r , 1 9 7 5 ; S p e ig h t , 1 9 9 4 ; A S T M D -1 2 1 ) . M e m ilik i w a r n a d a r i c o k la t s a m p a i
h it a m t e r g a n t u n g k o m p o s is in y a d a n p e m b e n t u k a n y a s e la lu d a la m k o n d is i y a n g b e r la p is - la p is d a n
t e r b a g i- b a g i b e r d a s a r k a n n ila i k a lo r i y a n g t in g g i s a m p a i k e r e n d a h . B a t u b a r a m e r u p a k a n b a t u a n
k a r b o n a n y a n g t e r b e n t u k d a r i h a s il d e k o m p o s is i d a n a lt e r a s i d a r i t a n a m a n y a n g m e n g a la m i k o m p a k s i ,
p e r u b a h a n t e k a n a n d a n s u h u . T e r b e n t u k n y a b a t u b a r a t e r b a g i m e n ja d i d u a t ip e p e m b e n t u k a n y a it u :
1 . In s it u : B a t u b a r a y a n g t e r b e n t u k d i t e m p a t a s a l t u m b u h - t u m b u h a n it u b e r a d a , m e m p u n y a i
p e n y e b a r a n lu a s s e r t a t e b a l d a n m e r a t a k u a lit a s n y a le b ih b a ik k a r e n a k a d a r s u lf u r d a n
a b u n y a r e la t iv e k e c il a t a u t e r b e n t u k p a d a c e k u n g a n y a n g t e r t u t u p s e p e r t i d a n a u d a n
lin g k u n g a n f lu v ia t il y a n g ja u h d a r i p a n t a i d a n g e n a n g la u t d i p e n g a r u h i o le h lin g k u n g a n a ir
t a w a r – p a y a u , b ia s a d i s e b u t ju g a e n d a p a n lim n is .
2 . A llo c h t o n e : b a h w a b a h a n - b a h a n p e m b e n t u k b a t u b a r a t e r ja d i d i t e m p a t y a n g b e r b e d a a t a u
s u d a h m e n g a la m i t r a n s p o r t a s i d a r i t e m p a t s e m u la t u m b u h - t u m b u h a n a t a u o r g a n is m e ,
p e n y e b a r a n y a t id a k lu a s d a n t id a k m e r a t a m e m ilik i p a r t in g d a n k a n d u n g a n a s h y a n g t in g g i.
B ia s a t e r ja d i p a d a c e k u n g a n t e r b u k a s e p e r t i p a n t a i a t a u p u n p r o d e lt a y a n g d o m in a s i t e r ja d i
g e n a n g la u t a t a u t r a n s g r e s i d e n g a n lin g k u n g a n y a n g m e m ilik i s a lin it a s y a n g b e r b e d a - b e d a .
B ia s a d i s e b u t ju g a e n d a p a n p a r a lic . P a r a a h li s e k a r a n g m e n y e b u t n y a d e n g a n t e o r i d r if t ( 3
m e n g a p u n g ).
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
U n t u k je n is b a t u b a r a s e n d ir i t e r b a g i m e n ja d i d u a y a it u b a n d e d ( H u m ic c o a l ) d a n n o n b a n d e d (
S a p r o p e lic c o a l ) . M a s in g - m a s in g je n is b a t u b a r a t e r s e b u t t e r b a g i b e r d a s a r k a n m in e r a l p e n y u s u n n y a (
m a c e r a l ) d a n k e t e r d a p a t a n y a ( lin g k u n g a n p e n g e n d a p a n y a ) y a n g b e r k a it a n s e k a li d e n g a n t a h a p a n
p e m b e n tu k a n h y d ro c a rb o n .
L it h o t y p e D e s c r ip t io n C o m p o s it io n
V it r a in B la c k , V e r y B r ig h t C lu s t r e , T h in V it r in it e m a cera l w it h <20%
L a y e r s B r e a k C u b ic a ly ; T h ic k e x in it e m a c e r a ls
la y e r h a v e c o n c h o id a l f r a c t u r e
C la r a in F in e s t r a t if ie d la y e r s o f v it r a in V a r ia b le
a n d d u r a in in s o m e in s t a n c e s ,
f u s a in , m e d iu m lu s t e r .
D u r a in B la c k or G re y , D u ll, Rough M a in ly In e r t in ic and e x in it
F ra c tu re S u rfa c e s m a ce ra l
F u s a in B la c k , S ilk y C lu s t r e , F r ia b le & S o ft M a in ly F u s in it e
C a n e l C o a l ( s a p r o p e lic c o a l ) B la c k , D u ll, L u s t r e “ G r e a s y “ , F in e m a c e r a l p a r t ic le u s u a lly
b r e a k w it h c o n c o id a l f r a c t u r e d o m in a t e d b y s p o r in it e
4
B o g h e a d C o a l( s a p r o p e lic c o a l ) B la c k or B ro w n D u ll, D o m in a t e d b y a lg in it e
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
H om ogeneous, b re a ks w it h
c o n c o id a l f r a c t u r e , lu s t e r m a y b e
g re a sy.
L it h o t y p e c o a l m a c e r a l M c C a b e ( 1 9 8 4 ) IA S ( T a b e l 1 .1 )
U n t u k b a t u b a r a y a n g t e r b e n t u k d i d a e r a h p a r a lis ( r a w a – p a n t a i ) d o m in a n t t e r s u s u n o le h v it r in it e d a n
e x in it e , s e d a n g k a n u n t u k d a e r a h lim n is ( d a n a u / c e k u n g a n t e r t u t u p ) d o m in a n t t e r s u s u n o le h a lg in it e
d a n s p o r in it e .
Peat L ig n it S u b b it u m in o u s B it u m in o u s a n t h r a c it e
1 . P e a t ( G a m b u t ) m e r u p a k a n t a h a p a w a l c o a lif ic a t io n m e m ilik i k a n d u n g a n a ir h in g g a 9 0 % ,
k a n d u n g a n c a r b o n 5 0 – 6 0 % b a t a s a n t a r a g a m b u t d a n b a t u b a r a m u d a y a it u k a n d u n g a n a ir le b ih
d a ri 7 0 % ( a sh fre e ).
C : 6 1 ,7 % , H : 0 .3 % , O : 3 8 % .
2 . L ig n it m e r u p a k a n t a h a p s e t e la h t e r b e n t u k n y a p e a t ( g a m b u t ) d i s e b u t ju g a b r o w n c o a l d e n g a n
s if a t f is ik y a n g p a d a u m u m n y a b e r w a r n a c o k la t d a n w a r n a a g a k k u s a m ( m a in ly d u ll ) d e n g a n
k a n d u n g a n a ir t id a k ja u h b e r b e d a d e n g a n p e a t ( g a m b u t ) , t e t a p i a d a p e n in g k a t a n p a d a
k a n d u n g a n c a r b o n d a n h y d r o g e n . S if a t f is ik d a r i lig n it s e c a r a k u a lit a t if w a r n a d a n g o r e s c o k la t .
C : 8 0 ,4 % , H : 0 .5 % , O : 1 9 ,1 % .
5
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
3 . S u b B it u m in u o s
S u b b it u m in o u s m e r u p a k a n t a h a p a n m e t o m o r f is m d a r i lig n it k e b it u m in io u s a t a u b is a d ib ila n g
k o n d is i t r a n s is i. B ia s a n y a d it a n d a i d e n g a n p e n in g k a t a n k a r b o n d a n p e n u r u n a n k a d a r a ir .s e r t a
o x y g e n s e c a r a p e r la h a n - la h a n . S e c a r a f is ik b a t u b a r a t e r s e b u t s e b a g ia n m e m ilik i w a r n a c o k la t
d a n h it a m s e r t a g o r e s a n w a r n a c o k la t .
4 . B it u m in o u s
P a d a t a h a p b it u m in o u s k a n d u n g a n c a r b o n t id a k m e n g a la m i p e r u b a h a n s e c a r a s ig n if ik a n t e t a p i
p a d a h y d r o g e n d a n o x y g e n m e n g a la m i p e n u r u n a n s e c a r a p e r la h a n - la h a n . S e c a r a f is ik b a t u b a r a
t e r s e b u t m e m ilik i w a r n a d a n g o r e s a n h it a m .
5 . A n t r a s it
P a d a t a h a p a n t r a s it is a s i k a n d u n g a n c a r b o n m e n c a p a i 9 0 % o k s ig e n le b ih c o n s t a n t s e d a n g k a n
h y d r o g e n t u r u n le b ih c e p a t .
P r o s e s p e m b e n t u k a n p e a t k e a n t h r a c it e s e la r a s d e n g a n b u r ia l t e m p e r a t u r e y a n g d ik u t i o le h u m u r w a k t u
g e o lo g i.
D ia g e n e s a K a ta g e n e sa M e ta g e n e sa
In c r e a s e T e m p & D e p t h .
P e n t in g n y a m e m a h a m i p r o s e s p e m b e n t u k a n b a t u b a r a a g a r m e n g e t a h u i k u a lit a s b a t u b a r a d a r i
6
k a r a k t e r n y a , b a h w a d e n g a n k o n d is i y a n g n o r m a l m a k a a k a n m e m ilik i k u a lit a s y a n g t id a k ja u h b e r b e d a (
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
d a la m h a l in i c a llo r ie ) , s e d a n g k a n u n t u k k a n d u n g a n a s h a t a u s u lf u r m e m ilik i p e n y e b a r a n y a n g
b e r v a r ia s i.
S u r v e y T in ja u
T o p o g r a p h ic
G e o lo g y M a p
A d m in is t r a t io n
G e o lo g ic a l m a p p in g G e o m o r p h o lo g y M a p
Sungai
C h a n e ll S a m p le
G e o lo g ic a l S e c t io n
R e g io n a l 1 : 2 5 0 0 0
S e m i D e t a il 1 : 1 0 0 0 0 In d ic a t e d R e s o u r c e s
S t r u c t u r e p r o f ile
D e t a il 1 : 5 0 0 0
P r o s p e c t in g A r e a S t r a t ig r a p h ic P r o f ile
S u r v e y G e o f is ik a D r illin g H o le E x p lo r a t io n
( O p t io n a l ) R d ti
T r u e T h ic k n e s s
T r u e D ip
D r illin g E x p lo r a t io n
V e r t ic a l P r o f ile
C o r e S a m p le
In fe r r e d r e s o u r c e s
S t r a t ig r a p h ic
M odel
7
G a m b a r 1 .1 D e s ig n s e d e r h a n a A lir E x p lo r a s i B a t u b a r a .
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
P ro sp e ct A re a In fe r r e d R e s o u r c e s Q u a lit y m a p Lan d u sed M ap
A d m in is t r a t io n
P it L im it
D r illin g H o le P r o d u c t o n
M e a su re d R e so u rce s
M in e P la n
M in in g M a n a g e m e n t P r o d u c t io n M a n a g e m e n t
G a m b a r 1 .2 D e s ig n S e d e r h a n a A lir E x p lo r a s i k e P r o d u k s i
G a m b a r / d ia g r a m d i a t a s h a n y a m e r u p a k a n illu s t r a s i s in g k a t d a r i k e g ia t a n e k s p lo r a s i s a m p a i d e n g a n
p r o d u k s i d e n g a n m e t o d e k o n v e n s io n a l n a m u n t id a k b e r la n ju t k e t a h a p p e n a m b a n g a n ,p e n im b u n a n
p ro d u k si d a n p o rt.
8
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .1 . S a m p lin g
S a m p lin g a d a la h P ro s e s p e n g a m b ila n s a m p le u n tu k m e n g a m b il s e ju m la h k e c il s a m p le y a n g
re p re s e n ta tiv e d a ri s u a tu p a rta i b a ra n g . S e d a n g k a n s a m p le r a d a la h p e tu g a s y a n g m e m p u n y a i k e w e n a n g a n
u n tu k m e n g a m b il s a m p le . S a m p le a d a la h h im p u n a n b a g ia n d a ri p o p u la s i, s u a tu b a g ia n k e c il m e w a k ili
s u a tu p o p u la s i y a n g d i a m b il o le h p e tu g a s b e rd a s a rk a n m e to d e p e n g a m b ila n s a m p le y a n g s ta n d a rd .
D a la m p e n g a m b ila n c o n to h b a tu b a ra ( s a m p lin g ) s e rin g te rja d i p e n y im p a n g a n a ta u b ia s k e tik a d i a n a lis a ,
h a l te rs e b u t d i p e n g a ru h i o le h b e b e ra p a fa k to r :
• B a g a im a n a c a ra p e m u a ta n b a tu b a ra (lo a d in g ) d a n p e n g a m b ila n b a tu b a ra d i p it ( G e ttin g ) s a m p a i
d e n g a n d i p e n im b u n a n .
• T e k n ik p e n g a m b ila n s a m p le b a tu b a ra y a n g s e c a ra ra n d o m te ta p i h a n y a d a ri p e rm u k a a n n y a s a ja ,
tid a k s a m p a i k e d a la m tu m p u k a n b a tu b a ra ( R O M ).
• H ila n g a ta u b e rta m b a h n y a k a d a r a ir ( m o is tu re ) k h u s u s n y a F re e m o is tu re y a n g d i p e n g a ru h i
k a re n a k o n d is i c u a c a a ta u p u n fa k to r la in .
• K o n ta m in a s i d a ri lin g k u n g a n R O M a ta u S to c k p ile k a re n a b a n y a k n y a d e b u k a re n a k u ra n g n y a
p e ra w a ta n a ta u p u n p a d a s a a t h a n d lin g b a tu b a ra .
U n tu k m e m in im a lis a s i b ia s p a d a s a a t s a m p lin g a ta u b ia s a d i s e b u t M in im u m T o le r a b le B ia s ( M T B ),
m a k a d i p e rlu k a n p e n g u k u ra n s e c a ra s ta tis tik d a ri b e b e ra p a p e n g a m b ila n s a m p le y a n g re p re s e n ta tiv e a ta u
m e w a k ili b e rd a s a rk a n lo k a s i p e n g a m b ila n s a m p le y a n g b ia s a n y a d i a m b il d a ri re fe re n s i s a m p le s e p e rti
p a d a m e c h a n ic a l s a m p lin g .
T u ju a n s a m p lin g a d a la h m e m p e rs ia p k a n c o n to h u n tu k d i a n a lis a d i la b o ra to riu m u n tu k d i k e ta h u i
9
k u a lita s b a tu b a ra te rs e b u t b e rd a s a rk a n s ifa t fis ik a d a n k im ia y a n g d i m ilik i.
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
T a h a p a n a ta u p ro s e s d a la m p e n g a m b ila n s a m p le :
1. M e m p e rs ia p k a n a la t – a la t y a n g d i b u tu h k a n d a la m p e n g a m b ila n s a m p le .
2. M e n e n tu k a n m e to d e d a n s ta n d a rd s a m p lin g .
3. M e n e n tu k a n ju m la h d a n m a s s a in c re m e n t s e rta in te rv a l d i lo k a s i s a m p lin g .
4. M e n y im p a n s a m p le d a la m s u a tu w a d a h u n tu k d i p re p a ra s i d a n d i u ji la b o ra to riu m .
D a la m p e n g a m b ila n s a m p le d ip e rlu k a n p e ra la ta n y a n g k h u s u s , k a re n a itu m e ru p a k a n s a la h s a tu fa c to r
y a n g m e n e n tu k a n s a m p le y a n g d i a m b il te rs e b u t re p re s e n ta tiv e d a n s e s u a i s ta n d a rd a ta u tid a k . S e d a n g k a n
a la t-a la t y a n g d i b u tu h k a n d a la m p e n g a m b ila n s a m p le :
• S e k o p u n tu k m e n g u m p u lk a n s a m p le d a ri s to c k p ile , c ra n e g ra b d a n ro d a p e m u a t b u c k e t
• S e k o p la d le u n tu k m e n g u m p u lk a n s a m p e l d a ri fa llin g s tre a m .
• F ra m e u n tu k m e n g a m b il s a m p le p a d a s to p b e lt.
M e n e n tu k a n m e to d e d a n s ta n d a r s a m p lin g y a n g te p a t s e s u a i d e n g a n je n is d a n lo k a s i s a m p le . U n tu k
m e to d e s ta n d a r m e n g g u n a k a n :
1. IS O 1 9 8 8 , IS O 1 3 9 0 9 -2
2. B S 1 0 1 7 .1
3. A S T M D -2 2 3 4 /2 2 3 4 M .
K o n d is i-k o n d is i y a n g m e n e n tu k a n d a n m e m p e n g a ru h i ju m la h d a n b e ra t in c re m e n t d a la m k e g ia ta n
s a m p lin g :
10
• B e ra p a tin g k a t v a ria s i k u a lita s d a ri b a tu b a ra ?
• B e ra p a to p s iz e b a tu b a ra te rs e b u t ?
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
• B e ra p a tin g k a t p re s is i s a m p lin g y a n g d iin g in k a n ?
• A p a m e to d e S ta n d a rd y a n g d ip e rs y a ra tk a n ?
• L o k a s i s a m p lin g ?
• K o n d is i b a tu b a ra C le a n /U n c le a n a ta u B le n d in g /T u n g g a l?
• B a g a im a n a c a ra p e m u a ta n b a tu b a ra te rs e b u t?
• B e ra p a ju m la h p a rta i b a tu b a ra te rs e b u t?
P e n g a m b ila n s a m p le b e rd a s a rk a n to n a g e s u d a h m e m ilik i s ta n d a r y a n g m e n ja d i a c u a n , u n tu k to n a g e le b ih
d a ri 1 0 0 0 to n m a k a : n √ to n a g e /1 0 0 0
x , d im a n a n : ju m la h in c re m e n t p e r 1 0 0 0 to n . S e d a n g k a n u n tu k
to n a g e y a n g 1 0 0 0 to n b e rd a s a rk a n s ta n d a r y a n g b e rla k u d i b e d a k a n m e n ja d i :
T a b e l 2 .1 K la s if ik a s i J u m la h I n c r e m e n t d a n g a n to n a g e b e r d a s a r k a n m e to d e s ta n d a rd .
CLEAN COAL
T o p S iz e 16 50 150
IS O ASTM BS IS O ASTM BS IS O ASTM BS
J u m la h I n c r e m e n t
15 16 20 15 32 20 15 16 20
B erat In crem en t
1 1 1 3 3 3 7 10 10
RAW /UNCLEAN COAL
35 32 35 35 64 40 35 32 35
J u m la h I n c r e m e n t 11
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
B erat In crem en t
1 1 1 3 3 3 7 10 10
U n tu k in te rv a l s a m p lin g d ib e d a k a n m e n ja d i d u a u n tu k s k a la w a k tu d a n s k a la b e ra t, u n tu k s k a la w a k tu :
In te rv a l w a k tu (m e n it) = ( to n a s e x 6 0 ) : ( flo w ra te x ju m la h in c re m e n t)
S e d a n g k a n d a la m s k a la b e ra t :
In te rv a l b e ra t ( T o n ) = T o n a g e : J u m la h in c re m e n t
A d a n y a p e m b a g ia n a ta u k la s ifik a s i d i a ta s b e rd a s a rk a n lo k a s i s a m p lin g , k a re n a itu d a la m p e n g a m b ila n
s a m p le , s a m p le r h a ru s m e n e n tu k a n d u lu lo k a s i s a m p lin g . Y a n g te la h d ib e d a k a n m e n ja d i tig a je n is s a m p le
y a itu :
• S h ip m e n t : S a m p le y a n g d i a m b il p a d a b a rg e /v e s e l a ta u p u n p a d a s a a t p e n g irim a n k e b a rg e
m e la lu i c o n v e y o r a ta u p u n p a d a s a a t lo a d in g k e v e s s e l d i te rm in a l.
• N o n S h ip m e n t : S a m p le y a n g d i a m b il p a d a te m p a t p e n im b u n a n a ta u s to c k y a rd s e p e rti s to c k p ile
d a n S to c k R O M . U n tu k s a m p le S to c k ro m ( S r ) d a n S to c k p ile ( S p ) d e n g a n ty p e b a tu b a ra r a w
• M in e S ite : s a m p le y a n g d ia m b il p a d a te m p a t P ro d u k s i ( P it S a m p le ) d e n g a n tip e b a tu b a ra
Raw .
M e to d e s a m p lin g b e rd a s a rk a n te m p a t p e n g a m b ila n a ta u lo k a s i :
• P it S a m p lin g : C h a n e l S a m p le ( S e a m ), C o re s a m p le d a n G ra b B u c k e t p a d a s a a t
p e n g a n g k u ta n k e T ru c k . 12
• R o m S a m p lin g : D e n g a n s e k o p la d le p a d a g ra b b u c k e t a ta u p a d a tim b u n a n p ro d u k .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
• S to c k p ile s a m p lin g te rb a g i m e n ja d i d u a , y a itu :
1. S a m p lin g m a n u a l d e n g a n s e k o p la d le p a d a tim b u n a n s to c k p ile a ta u g ra b b u c k e t,
s a m p lin g m e la lu i c o n v e y o r d e n g a n s to p e d b e lt, fa llin g S tre a m .
2. S a m p lin g m e c h a n ic a l p a d a m o v in g b e lt, fa llin g s tre a m .
G a m b a r 1 .3 . P e n im b u n a n p r o d u k b a tu b a ra h a s il c ru s h in g ( s to c k p ile ) .
D a la m k e g ia ta n p e n g a m b ila n s a m p le , s a m p le y a n g s u d a h d i a m b il d i s im p a n d a la m w a d a h b e ru p a p la s tik
b a g a ta u p u n k a ru n g y a n g m e m ilik i d a y a ta m p u n g s e s u a i d e n g a n p e re n c a n a a n p a d a s a a t s a m p lin g d a la m
s a tu a n lo t s a m p lin g .
13
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 1 .4 . S a m p lin g b a tu b a r a p a d a f a llin g s tre a m m e la lu i c o n v e y o r d a la m p e rja la n a n k e b a r g e d a ri
k a n a n k e k iri.
H a l-h a l y a n g p e rlu d i p e rh a tik a n , d a la m k e g ia ta n s a m p lin g tid a k a d a is tila h b e rh a s il a ta u tid a k , k a re n a
s e m u a s u d a h a d a s ta n d a r p ro s e d u r d a n m e to d e s ta n d a r y a n g d i p a k a i m e la in k a n “ s a m p lin g d im a n a y a n g
m e m ilik i tin g k a t k e p e r c a y a a n d a n p e r s e n ta s e b e s a r u n tu k d ija d ik a n a c u a n d a la m k o n tr o l k u a lita s d a r i
m u la i p it s a m p lin g s a m p a i d e n g a n b a r g e s a m p lin g ” . P a d a c h a n e l s a m p lin g m e m a n g m e ru p a k a n d a s a r
p a d a k u a lita s d a ri b a tu b a ra itu s e n d iri d a n ju g a u n tu k m e n g e ta h u i p e n y e b a ra n s u lfu r s e c a ra h o riz o n ta l
te ta p i p a d a k e n y a ta a n s e la lu a d a d ilu s i a ta u b ia s p a d a k u a lita s b a tu b a ra itu s e n d iri k e tik a m e n g a la m i
p e rja la n a n k e b a rg in g s a m p a i v e s s e l a p a la g i k a la u d ilu s i a ta u b ia s n y a itu b e s a r y a n g d is e b a b k a n
p e n im b u n a n y a n g te rla lu la m a d a n tid a k a d a p e ra w a ta n p a d a d a e ra h p e n im b u n a n d ik u ti d e n g a n
p e n g a m b ila n b a tu b a ra d i s e a m y a n g tid a k te re n c a n a .
14
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 1 .5 . P e n g a n g k u ta n b a tu b a r a d e n g a n e x c a v a to r 5 0 0 k e D u m p in g T ru c k
D a n s e a n d a in y a p u n itu s u d a h d ire n c a n a k a n s e rta d ik e lo m p o k a n p a d a p e n g a m b ila n b a tu b a ra d i s e a m ,
s e p e rti m is a ln y a : p e n g a m b ila n d i b a g ia n d e k a t a ta p ( ro o f ), d i te n g a h a ta u b a d a n b a tu b a ra ( c o a l b o d y )
s e rta d ib a g ia n d e k a t b a ta s b a w a h b a tu b a ra ( flo o r ) k e m u n g k in a n te rja d in y a b ia s a ta u d ilu s i p u n te ta p a d a .
D a ri h a l te rs e b u t d a p a t d i s im p u lk a n b a h w a d ilu s i a ta u b ia s tid a k b is a d ih ila n g k a n te ta p i h a ru s te ta p
te rja g a d a la m b a ta s g a ris ( L in e ) to le ra n s i d a s a r y a n g te la h d i s e p a k a ti. U n tu k itu m a k a p e rlu n y a s a m p lin g
p a d a s a a t p e n g a m b ila n b a tu b a ra ( d i b u c k e t ) a ta u d i T ru c k k a re n a s e la in m e w a k ili d ilu s i d a n b ia s y a n g
s u d a h a d a p a d a s a a t p e n g a m b ila n ( g e ttin g ) ju g a m e ru p a k a n b a h a n a c u a n p e rb a n d in g a n u n tu k m e lih a t
p e rk e m b a n g a n d ilu s i a ta u b ia s d a ri R o m , S to c k p ile d a n B a rg e /V e s s e l.
15
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .2 . P r e p a r a s i
P re p a ra si a d a la h m e m p e r s ia p k a n s a m p le b a t u b a r a a g a r u k u r a n n y a s e s u a i d e n g a n t u ju a n
a n a lis a a t a u a n a lis a y a n g d iin g in k a n . P a d a u m u m n y a a n a lis a y a n g d iin g in k a n s e s u a i p e r m in t a a n
y a it u r e s id u a l m o is t u r e ( R M ) , B u lk D e n s it y d a n G e n e r a l a n a ly s is ( G A ) , m a s in g – m a s in g t e r s e b u t
m e m ilik i p e r la k u a n y a n g b e r b e d a - b e d a d a n m e m ilik t a h a p a n s e r t a p r o s e s s e s u a i d e n g a n m e t o d e
s t a n d a r d d a n p r o s e d u r e y a n g t e la h d i s e p a k a t i, d a r i m u la i c r u s h in g , s iz in g s a m p a i d e n g a n d r y in g .
S e d a n g k a n a la t - a la t y a n g d i b u t u h k a n d a la m p r e p a r a s i a d a la h :
1 . C ru sh e r.
2 . D iv id e r M e c h a n ic a l a t a u R o t a r y S a m p le D iv id e r ( R S D ) .
3 . D ry e r ( O v e n ).
4 . T im b a n g a n a t a u B a la n c e D ig it a l.
5 . R o t a p S ie v e .
6 . T ra y .
7 . S c r e e n S iz e .
1 . C ru sh e r
C r u s h e r a d a la h p e n g g e r u s b a t u b a r a a g a r s a m p le d a p a t d ia n a lis a s e s u a i d e n g a n u k u r a n / s iz e
y a n g d iin g in k a n . C r u s h e r t e r b a g i m e n ja d i b e b e r a p a m a c a m s e s u a i d e n g a n u k u r a n b a t u b a r a y a n g
in g in d i g e r u s d a n k e m a m p u a n m a k s im u m k a p a s it a s a la t t e r s e b u t , s e d a n g k a n u n t u k s iz in g m e m ilik i
16
s y a r a t b o b o t m in im a l 2 0 0 k g . U n t u k a la t c r u s h e r b e r d a s a r k a n u k u r a n t e r b e s a r ( t o p s iz e ) t e r b a g i
m e n ja d i :
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
a. R o ll C r u s h e r
A la t t e r s e b u t m e r u p a k a n a la t u n t u k m e n g g e r u s d a n m e m p e r k e c il u k u r a n ( s iz e ) y a n g
b e r v a r ia s i m e n ja d i u k u r a n t e r b e s a r 2 0 m m . U n t u k s a m p le y a n g d i a m b il d i R o m d a n P it
m e m ilik i t in g k a t v a r ia s i y a n g b e s a r a n t a r a 2 0 0 m m s a m p a i d e n g a n 5 0 m m ( r o m & p it ) ,
s e d a n g k a n u n t u k s a m p le d a r i s t o c k p ile d e n g a n t o p s iz e 5 0 m m . P a d a b e b e r a p a t e m p a t
p r e p a r a s i, r o ll c r u s h e r t id a k d ip e r g u n a k a n k a r e n a d e n g a n a la t h a m m e r m ill p u n s u d a h d a p a t
m e m p e r k e c il u k u r a n b a t u b a r a y a n g d iin g in k a n t e t a p i b a t u b a r a h a r u s d ih a n c u r k a n s e c a r a
m a n u a l d e n g a n p a lu s e s u a i d e n g a n k e m a m p u a n k a p a s it a s a la t t e r s e b u t , u n t u k m e n g h in d a r i
k e m a c e t a n d a n b r e a k d o w n p a d a a la t .
b . H a m m e r M ill
M e r u p a k a n a la t p e n g h a n c u r a t a u p e n g g e r u s s a m p le b a t u b a r a d a r i u k u r a n t e r b e s a r ( t o p s iz e )
2 0 m m k e 1 0 m m . S a m p le d e n g a n u k u r a n t e r s e b u t k e m u d ia n a k a n d i d r y in g u n t u k n ila i T M .
17
G a m b a r 2 .1 . H a m m e r M ill
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
c. Ja w C ru sh e r
M e r u p a k a n a la t p e n g h a n c u r a t a u p e n g e r u s s a m p le b a t u b a r a d a r i u k u r a n t e r b e s a r 1 0 m m
s a m p a i d e n g a n 4 .7 5 m m .
G a m b a r 2 .2 . Ja w C r u s h e r
S a m p le d e n g a n u k u r a n t e r b e s a r 4 . 7 5 m m , d ila k u k a n s e t e la h d i d r y in g u n t u k a n a lis a T o t a l
M o is t u r e a t a u F r e e M o is t u r e k e m u d ia n R e s id u a l m o is t u r e d a la m la b o r a t o r iu m .
d . R a y m o n d M ill
M e r u p a k a n a la t p e n g h a n c u r a t a u p e n g g e r u s d a r i u k u r a n t o p s iz e 4 .7 5 m e n ja d i 0 .2 m m
u n t u k a n a lis a u m u m ( g e n e r a l a n a ly s is ) .
18
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 2 .3 . R a y m o n d M ill
S a m p le y a n g t e la h d i c r u s h e r p a d a R a y m o n d M ill a k a n d i a y a k d e n g a n s c r e e n s iz e s a m p a i d i
d a p a t k a n s a m p le d e n g a n u k u r a n t e r b e s a r 0 .2 m m y a n g k e m u d ia n u n t u k d i la k u k a n u ji u m u m
y a n g d i k e m a s d a la m p la s t ic a t a u b o t o l d e n g a n b o b o t 2 0 0 g r .
e. C o f e e M ill a t a u P la t e M ill
M e r u p a k a n a la t u n t u k m e r u b a h s iz e b a t u b a r a d e n g a n u k u r a n t e r b e s a r 4 .7 5 m m k e 0 .6 m m .
P e n g h a c u r a n a t a u p e m b u b u k a n s a m p le in i u n t u k p e n g g u jia n t in g k a t g e r u s a n b a t u b a r a (
H a r d g r o v e G r in d a b ilit y In d e x ) . D a r i u k u r a n s a m p le y a n g d i d a p a t d i la k u k a n s c r e e n in g
d e n g a n a y a k a n s a m p a i 2 0 0 µ m s .d - 7 5 µ m d e n g a n r o t a p s ie v e u n t u k d ila k u k a n p e n g u jia n H G I.
G a m b a r 2 .4 C o fe e M ill (k ir i ) d a n R o t a p S ie v e ( K a n a n ) 19
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
2 . P e m b a g ia n ( d iv is io n )
A la t p e m b a g i ( d iv id e r ) m e r u p a k a n a la t u n t u k m e m b a g i b a t u b a r a m e m ilik i k a p a s it a s
m a k s im u m d a r i s a m p le b a t u b a r a . S a m p le b a t u b a r a d a p a t d ib a g i s e c a r a m e k a n ik ( a la t d iv id e r ) d a n
s e c a r a m a n u a l, u n t u k a la t p e m b a g i ( d iv id e r ) a d a b e b e r a p a je n is , n a m u n p a d a u m u m n y a u n t u k d i
S C I m e n g g u n a k a n a la t y a n g d is e b u t R o t a r y S a m p le D iv id e r ( R S D ) u n t u k m e m p e r c e p a t p e k e r ja a n .
G a m b a r 2 .5 . R S D u n t u k u k u r a n t e r b e s a r 1 0 m m ( k ir i ) d a n 4 .7 5 m m ( k a n a n )
U n t u k m a n u a l s a m p lin g a la t y a n g d ig u n a k a n ; C o n ic a l Q u a r t e r in g , In c r e m e n t R e d u c t io n / s c o o p
s a m p lin g , R if f le D iv id e r .
3 . D r y e r a ta u o v e n .
D ry e r a ta u o v e n y a n g d ig u n a k a n u n tu k a ir d ry in g , s e d a n g k a n a ir d ry in g ( A D L ) s e n d iri a d a la h
p e n g e rin g a n s a m p le b a tu b a ra d e n g a n s u h u d i b a w a h 4 0 ° s e s u a i d e n g a n m e to d e s ta n d a r y a n g te la h d i
te ta p k a n /d is e p a k a ti. S a m p le y a n g d i k e rin g k a n p a d a o v e n d a la m u k u r a n 4 .7 5 m m d i tim b a n g d e n g a n
tra y d e n g a n to ta l b o b o t 5 0 k g y a n g k e m u d ia n d ik e rin g k a n d a la m o v e n s a m p a i m e n c a p a i titik k o n s ta n .
T u ju a n n y a a d a la h u n tu k m e n g e ta h u i h ila n g n y a k a d a r a ir p a d a p e rm u k a a n b a tu b a ra y a n g d i s e b u t
T o ta l M o is tu re ( T M ) a ta u F re e M o is tu re ( F M ) d a n ju g a u n tu k m e m u d a h k a n d a la m p ro s e s
p e n g h a n c u ra n p a d a m e s in ja w c ru s h e r . 20
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 2 .6 . B a la n c e D ig ita l 1 5 0 k g ( k iri) d a n D r y e r O v e n ( K a n a n )
T ra y (te n g a h ).
S e d a n g k a n k e g u n a a n a n a lis a m o is tu re ( T M a ta u F M ) s e la in m e n g e ta h u i k a d a r a ir p e rm u k a a n (
A D L ) p a d a b a tu b a ra y a n g d ik e rin g k a n d e n g a n o v e n d e n g a n s u h u y a n g te la h d is ta n d a rk a n , ju g a
s e b a g a i b a s is p e la p o ra n . S e m u a s a m p le y a n g d i te rim a d i p re p a ra s i d a la m b a s is A s re c e iv e d ( A r ).
4 . T im b a n g a n a ta u B a la n c e D ig ita l.
T im b a n g a n a ta u B a la n c e D ig ita l m e ru p a k a n a la t u n tu k m e n g e ta h u i b o b o t s a m p le b a tu b a ra d a la m
s a tu a n L o t a ta u k e tik a in g in d i la k u k a n p e n g u jia n T o ta l M o is tu re d e n g a n tra y . A la t in i m e m ilik i
k a p a s ita s m a k s im u m b o b o t u n tu k p e n g o p e r a s ia n y a , a p a b ila m e le b ih i k a p a s ita s b o b o t m a k s im u m
m a k a a k a n m e n im b u lk a n e rro r p a d a la y a r.
21
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 2 .7 . T im b a n g a n b a la n c e d ig ita l 6 .0 k g
M a s in g – m a s in g b o b o t u n tu k b a la n c e d ig ita l y a n g d i p e rg u n a k a n u n tu k p re p a ra s i a d a la h 1 5 0 k g
( lih a t g a m b a r 2 .6 ) , 6 0 k g , 1 0 k g ,6 k g d a n 3 k g d a ri b a ta s m a k s im u m b o b o t te r s e b u t a la t te rs e b u t
m e m p u n y a i ru a n g k e rja n y a m a s in g -m a s in g , s e p e rti p e n im b a n g a n b o b o t s a m p le d a la m tra y u n tu k
p e rh itu n g a n A D L c u k u p d e n g a n tim b a n g a n 1 0 k g d a n p e n im b a n g a n b u a t S iz in g m e g g u n a k a n
tim b a n g a n d e n g a n b o b o t 1 5 0 k g a ta u 6 0 k g a p a b ila te rb a g i m e n ja d i s u b lo t.
5 . R o ta p S ie v e
M e r u p a k a n a la t u n tu k m e m b a n tu p r o s e s p e m is a h a n (s c r e e n in g ) u k u r a n te r b e s a r 0 .6 m m k e 2 0 0
µ m d a n – 7 5 µ m d e n g a n m e n g g u n a k a n a y a k a n ( s c re e n s iz e ) b e rd a s a rk a n u k u ra n m a s in g a y a k a n
te rs e b u t (lih a t g a m b a r 2 .4 ) . P e n g g u n a a n a la t in i p a d a s a a t p e n g u jia n H G I .
22
G a m b a r 2 .8 . A y a k a n ( S c r e e n s iz e ) 2 0 0 µ m , 8 0 µ m d a n - 7 5 µ m ( d a r i a ta s k e b a w a h ) .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
6. T ray
M e ru p a k a n te m p a t a ta u w a d a h u n tu k m e n a m p u n g s a m p le b a tu b a ra y a n g a k a n d i u ji b a ik d i
ru a n g p re p a ra s i m a u p u n d i la b o ra to riu m . T ra y in i te rb u a t d a ri b a h a n lo g a m c a m p u ra n a lu m u n iu m
y a n g tid a k m u d a h m e le le h a p a b ila d i p a n a s k a n d a la m s u h u 4 0 ° - 5 0 ° s e h in g g a s a m p le b a tu b a ra y a n g
a k a n d ik e rin g k a n tid a k a k a n m e n e m p e l p a d a tra y te rs e b u t. P e n e n tu a n je n is b a h a n tra y in i s a n g a t
p e n tin g d a la m ru a n g p re p a ra s i d a n p e n g u jia n s a m p le . T ra y m e m ilik i u k u ra n d im e n s in y a s e n d iri u n tu k
p e n g g u n a a n y a tra y y a n g d i g u n a k a n d i la b o ra to riu m d a n p re p a ra s i. P a d a u m u m tra y y a n g d i g u n a k a n
d i r u a n g a n p re p a ra s i m e m ilik i d im e n s i 6 0 c m x 3 0 c m (lih a t g a m b a r 2 .6 ) .
7 . S c r e e n S iz e
M e ru p a k a n a la t u n tu k m e m is a h k a n , m e n y a rin g s a m p le b a tu b a ra k e u k u ra n y a n g d iin g in k a n s e s u a i
d e n g a n k e b u tu h a n p e n g u jia n d a n p e rm in ta a n p e la n g g a n . M e m ilik i u k u ra n y a n g b e rv a ria s i d a ri + 5 0
m m s .d – 2 m m d a n 2 0 0 µ m s .d – 7 5 µ m , m a s in g – m a s in g u k u r a n te r s e b u t m e m ilik i k e g u n a a n y a
m a s in g - m a s in g . U n tu k s c re e n s iz e + 5 0 µ m s .d - 2 µ m u n tu k p e n g e c ila n s a m p le b a tu b a r a s e d a n g k a n
y a n g u k u r a n 2 0 0 µ m s .d – 7 5 µ m u n tu k p e n g u jia n H G I ( L ih a t g a m b a r 2 .8 u n tu k s c r e e n s iz e 2 0 0 µ m
).
23
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .3 . A n a lis a B a t u b a r a
P ro d u k b a tu b a ra y a n g a k a n d im in ta o le h p e m b e li d ilih a t d a ri k u a lita s b a tu b a ra te rs e b u t, a p a k a h
p ro d u k te rs e b u t m e m e n u h i s y a ra t a ta u m a s u k d a la m p ro d u k y a n g tid a k b is a d i te rim a k a re n a k u a lita s
te rs e b u t tid a k m e m e n u h i s y a ra t m in im u m ( R e je c tio n L im it ) k h u s u s n y a d a la m p e n g g u n a a n u n tu k
k e b u tu h a n e n e rg i, m e s k ip u n s u d a h a d a te k n o lo g i u n tu k m e n g k o n v e rs i b a tu b a ra y a n g m e m ilik i lo w
ra n k ta p i h a l te rs e b u t m e m ilik i p ro s e s d a n m e m b u tu h k a n te k n o lo g i ta m b a h a n u n tu k m e w u ju d k a n y a .
U n tu k m e n g e ta h u i k u a lita s b a tu b a ra d a la m p e n g g u n a a n u n tu k p e m b a n g k it te n a g a lis trik ( S te a m C o a l
) m a k a p e rlu p e n g u jia n s a m p le b a tu b a ra . D a la m p e n g u jia n s a m p le b a tu b a ra s e c a ra u m u m ( G e n e ra l
A n a ly sis ) m e n c a k u p :
1. T o ta l M o istu re .
2. M o is tu re .
3. H G I.
4. A sh.
5. R e la tiv e D e n sity .
6. F ix e d C a rb o n .
7. V o la tile M a tte r.
8. T o ta l S u lp h u r.
9. C ru s ib le S w e llin g N u m b e r.
1 0 . C a rb o n , H id ro g e n d a n N itro g e n ( C H N ).
1 1 . T ra c e E le m e n t.
1 2 . C a lo riv ic V a lu e .
D a ri p e n g u jia n b a tu b a ra s e c a ra u m u m te rb a g i m e n ja d i d u a y a itu p ro x im a te d a n u ltim a te . U n tu k
P ro x im a te m e n c a k u p M o is tu re ( in h e re n t m o is tu re ), V o la tile M a tte r, F ix e d C a rb o n d a n A sh,
s e d a n g k a n u n tu k U ltim a te m e n c a k u p k a n d u n g a n C a rb o n , H id ro g e n , N itro g e n , O x y g e n d a n T o ta l
S u lfu r. U n tu k p e n g u jia n u m u m ( G e n e r a l A n a ly s is ) p a d a s a m p le b a tu b a r a y a n g la n g s u n g d i te r im a 24
d a r i r u a n g p r e p a r a s i d a la m b a s is A s R e c e iv e d ( A r ) y a n g k e m u d ia n d i e q u ilib r iu m p a d a s u h u r u a n g
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
2 5 ° C - 3 0 ° C m a k a s a m p le te r s e b u t b e r u b a h m e n ja d i b a s is A ir D r ie d ( A d ) a ta u A ir D r ie d B a s is ,
s e d a n g k a n a p a b ila s a m p le te r s e b u t d ih ila n g k a n m o is tu r e in h e r e n tn y a d e n g a n fu r n a c e 1 0 5 ° C d e n g a n
g a s n itr o g e n (IS O ) m a k a s a m p le te r s e b u t m e n ja d i D r y B a s is (D b ) . Y a n g p e rlu d ip e rh a tik a n a p a b ila
te rja d i d ry b a s is a d a la h ta n p a k a n d u n g a n a ir a rtin y a te la h m e n g a la m i p e n g e rin g a n p a d a s a m p le
0 .2 1 2 m m s e la m a d u a k a li, y a itu p a d a s a a t E Q d a n d e n g a n m e to d e I S O , k e s im p u la n n y a a d a la h s e m u a
s a m p le u n tu k g e n e ra l a n a ly s is y a n g m e n g ik u ti p ro s e d u r u m u m s e b e lu m d i a n a lis a la n ju t d a la m b a s is
A ir D rie d a ta u A ir D rie d B a s is . P a d a s a a t e q u ilib riu m te rs e b u t a d a p e m b a g ia n w a k tu e q u ilib riu m
u n tu k je n is s a m p le ; S h ip m e n t d a n N o n S h ip m e n t. U n tu k je n is S h ip m e n t d i e q u ilib liriu m s e la m a 3
ja m d a n je n is N o n S h ip m e n t 6 ja m . M a s in g -m a s in g p e n g u jia n s a m p le p a d a la b o ra to riu m s e la in u n tu k
m e n g e ta h u i k u a lita s y a n g m e m p u n y a i h u b u n g a n n y a p a d a s a a t p e m b a k a ra n d i b o ile r d a n h a s il
p e m b a k a ra n te rh a d a p lin g k u n g a n .
T a b e l K o n v e rs i B a s is
Ar Db D af
A db ( P a ra m e te r x 1 0 0 /1 0 0 – Im – A s h
( 1 0 0 – T m /1 0 0 – Im ) x P a ra m e te r ( 1 0 0 /1 0 0 - Im ) x p a r a m e te r
C o n te n t )
T a b e l 2 .2 T a b e l K o n v e rs i B a s is P e la p o r a n
1. T o ta l M o is tu r e
M e ru p a k a n k a d a r k e le m b a b a n p a d a p e rm u k a n b a tu b a ra y a n g s ifa tn y a tid a k te rik a t p a d a
b a tu b a ra te rs e b u t y a n g a rtin y a k e le m b a b a n te rs e b u t b is a d ih ila n g k a n d e n g a n c a ra p e n g e rin g a n
p a d a o v e n a ta u u d a ra b e b a s . K a d a r k e le m b a b a n te rs e b u t b is a h ila n g d a n b e rta m b a h p a d a s a a t
p e n im b u n a n d i s to c k ro m a ta u s to c k p ile te rg a n tu n g d a ri c u a c a d a n to p s iz e d a ri b a tu b a ra
te rs e b u t , k a re n a itu p e n im b u n a n p ro d u k d i b a tu b a ra tid a k b o le h te rla lu la m a d i lo k a s i
p e n im b u n a n d a n ju g a v a ria s i u k u ra n b a tu b a ra le b ih b a ik d a la m k o n d is i a s lin y a p a d a s a a t
25
p e n g a m b ila n d i s e a m (k e c u a li d i s to c k p ile ) y a itu m e m ilik i tin g k a t v a ria s i y a n g tin g g i.
P e rh itu n g a n u n tu k m e n g e ta h u i T o ta l m o is tu re y a itu p e ju m la h a n d a ri F re e M o is tu re d e n g a n
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
R e s id u a l m o is tu r e d e n g a n u k u r a n s a m p le te r b e s a r 4 .7 5 m m , s e d a n g k a n u n tu k m e n g e ta h u i n ila i
m a sin g -m a sin g p a ra m e te r te rs e b u t m e m p u n y a i m e to d e sta n d a rd n y a m a sin g -m a s in g , p a d a
u m u m n y a IS O /B S a ta u A S T M .
G a m b a r 3 .1 M e m e r t O v e n u n tu k a n a lis a R M ( K ir i ) d a n M in im u m F re e S p a c e u n tu k
M o is tu re ( K a n a n ).
U n tu k F re e M o is tu re p a d a u m u m n y a d ila k u k a n d i ru a n g p re p a ra s i d e n g a n te m p e ra tu re o v e n <
4 0 ° C s e la m a 3 ja m ( lih a t g a m b a r 2 .6 ) , s e d a n g k a n u n tu k h a r g a re s id u a l m o is tu r e d e n g a n
b o b o t s a m p le 1 0 g r p a d a M e m e rt O v e n d e n g a n te m p e ra tu re 1 0 5 ° C d e n g a n w a k tu 5 ja m ( IS O
).
2. M o istu r e
M e ru p a k a n k a d a r k e le m b a b a n a ta u k a n d u n g a n a ir y a n g s ifa tn y a te rik a t d e n g a n b a tu b a ra itu
s e n d iri y a n g a rtin y a tid a k p a d a p e rm u k a a n lu a r b a tu b a ra te rs e b u t, o le h k a re n a itu u n tu k
m o is tu r e a ta u in h e r e n t m o is tu re d i k e rin g k a n a ta u d i p a n a s k a n d e n g a n u k u r a n te r b e s a r 0 .2 1 2
m m p a d a s u h u 1 0 5 ° C p a d a M F S d e n g a n g a s N itr o g e n ( I S O ) ( G a m b a r 3 .1 ) a ta u d e n g a n
u d a ra k e rin g s e la m a 1 J a m ( A S T M ).
3. HGI
H a rd g ro v e G rin d a b ility In d e x m e ru p a k a n s ifa t b a tu b a ra te rh a d a p k u a t a ta u m u d a h n y a
te rg e ru s b a ik te rh a d a p p ro s e s a la m s e p e rti c u a c a ( o k s id a s i ) m a u p u n d e n g a n m e k a n ik s e p e rti
a la t. P e n g u jia n H G I in i d i la k u k a n d e n g a n m e s in p e n g u k u r H G I d e n g a n In d e x n ila i d a ri h a s il
26
p e n g e r u s a n p a d a m e s in H G I . P e n g u jia n H G I d i la k u k a n d e n g a n u k u ra n te r b e s a r 0 .6 m m s .d –
7 .5 µ m m e la lu i a la t y a n g d i s e b u t C o f e e m il/P la te m il d a n R o ta p S ie v e ( lih a t G a m b a r 2 .4 d a n
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
2 .7 ) . T in g k a t k e k u a ta n g e r u s b a tu b a r a d e n g a n in d e x 1 0 – 1 0 0 s e m a k in r e n d a h in d e x h a s il
p e n g u jia n m a k a s e m a k in k u a t te rh a d a p p ro s e s m e k a n ik d a n o k s id a s i.
G a m b a r 3 .2 M e s in H G I ( H a r d g r o v e G r in d a b ility I n d e x )
4. A sh
M e ru p a k a n m a te ria l n o n b a tu b a ra y a n g te rik u t te rb a w a , te rc a m p u r p a d a p ro d u k b a tu b a ra d a n
ju g a s e b a g a i u n s u r a ta u e le m e n la in y a n g h a d ir p a d a s a a t p e m b e n tu k a n b a tu b a ra y a n g
m e n ja d i b a h a n – b a h a n m a te ria l y a n g tid a k ik u t te rb a k a r p a d a s a a t p e m b a k a ra n . T u ju a n d a ri
a n a lis a a s h in i u n tu k m e n g e ta h u i k a d a r e le m e n t m a jo r a ta u m in o r y a n g d a p a t m e m p e n g a ru h i
m e s in p e m b a k a ra n ( h e a te r ) d e n g a n tim b u ln y a k e ra k p a d a p ip a a ta u fu rn a c e y a n g d is e b u t
s e b a g a i s la g g in g d a n fo u lin g . A s h a ta u k a n d u n g a n a b u d a la m b a tu b a ra in i h a s iln y a a k a n d i
g u n a k a n u n tu k m e n g u k u r k u a lita s d a n e fis is e n s i p e m b e rs ih a n p a d a m e s in p e m b a k a ra n .
G a m b a r 3 .3 . A s h F u rn a c e (A A F ) , a la t p e m b a k a r a n u n tu k m e la k u k a n
p e n g u jia n a s h c o n te n t.
27
U n tu k m e n g e ta h u i k a n d u n g a n a b u p a d a b a tu b a ra d e n g a n m e n g g u n a k a n a la t p e m b a k a ra n
f u r n a c e A A F ( A s h A n a ly s is F u rn a c e ) . K o n d is i s a m p le d e n g a n u k u ra n te r b e s a r 0 .2 1 2 m m
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
y a n g d ile ta k a n p a d a k ru s ib le p o rc e la in 4 0 m m d e n g a n b o b o t 1 g r y a n g k e m u d ia n d i p a n a s k a n
p a d a te m p e ra tu re 5 0 0 ° C s e la m a 1 ½ ja m y a n g k e m u d ia n d in a ik a n m e n ja d i 8 1 5 ° C s a m p a i
b e ra t te ta p , b ia s a n y a s e la m a 2 ja m .
5. R e la tiv e D e n s ity .
M e ru p a k a n R a s io a n ta ra m a s s a b a tu b a ra y a n g d a la m s a tu a n v o lu m e ( g r ) y a n g s e ta ra d e n g a n
s a tu a n v o lu m e a ir y a n g te la h te r k a lib ra s i p a d a te m p e ra tu re d a n ru a n g a n y a n g s a m a (
b e ra t/v o lu m e ). P e n g u jia n in i u n tu k m e n g e ta h u i m a s s a b a tu b a ra d a la m s a tu g ra m /m l.
T u ju a n y a a d a la h u n tu k m e n g e ta h u i ju m la h m u a ta n y a n g d i ta m b a n g p a d a s a a t s h ip m e n t.
G a m b a r 3 .4 . W a te rb a th ( k ir i ) d a n p ig n o m e te r ( K a n a n )
D e n s ik a to r ( b a w a h )
P e n g u jia n in i m e n g g u n a k a n b o to l p ig n o m e te r y a n g te ris i s a m p le b a tu b a ra d e n g a n u k u ra n
0 .2 1 2 m m b o b o t 2 g r d e n g a n a ir s a b u n y a n g te la h te rk a lib ra s i y a n g k e m u d ia n d i v a c u m
d e n g a n d e n s ik a to r s e la m a 1 5 m e n it d a n d ila n ju tk a n k e w a te rb a th .
6. F ix e d C a r b o n
M e ru p a k a n ju m la h k a rb o n p a d a t y a n g te rd a p a t p a d a b a tu b a ra y a n g d id a p a t d a ri s e lis ih h a s il
p e n ju m la h a n d e n g a n a s h , m o is tu re , s e rta v o la tile m a tte r. K e g u n a a n p e n g u jia n in i u n tu k
28
m e n g e ta h u i p e rb a n d in g a n ju m la h k a rb o n d e n g a n z a t te rb a n g s e h in g g a b a tu b a ra te rs e b u t b is a
d i k e ta h u i tin g k a ta n d a n je n is n y a . D a ri je n is n y a te rs e b u t d a p a t d ik e ta h u i d a n d ik e lo m p o k a n
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
u n tu k p e n g g u n a n n y a . P e n g u jia n fix e d c a rb o n tid a k a d a p e n g u jia n d e n g a n a la t te rs e n d iri,
k a re n a h a rg a n y a d id a p a t d a ri a n a lis a a s h , v o la tile m a tte r s e rta m o is tu re .
J e n is B a tu b a ra F u e l R a tio
K okas 92
A n tr a c ite 24
S e m i A n th ra c ite 8 .6
S e m i B itu m in o u s 4 .3
B itu m in o u s ( L o w V o la tile ) 2 .8
B itu m in o u s ( M e d iu m V o la tile ) 1 .9
B itu m in o u s ( H ig h V o la tile ) 1 .3
L ig n ite 0 .9
T a b e l 2 .3 k la s ifik a s i je n is d a n tin g k a ta n b a tu b a r a b e r d a s a r k a n
p e rb a n d in g a n F C /V M .
7. V o la tile M a tte r
M e ru p a k a n k a n d u n g a n z a t te rb a n g p a d a b a tu b a ra y a n g m u d a h m e n g u a p p a d a te m p e ra tu re
te rte n tu d a la m k o n d is i s ta n d a rd . V o la tile m a tte r s a m a s e p e rti a s h in i ju g a m e m p e n g a ru h i
k u a lita s b a tu b a ra p a d a m e s in p e m b a k a ra n ( fu rn a c e ) k a re n a s ifa tn y a y a n g m u d a h te rb a k a r.
S ifa tn y a y a n g m u d a h te rb a k a r d id a p a t d a ri u n s u r m e ta n , h id ro g e n s u lfid a , o k s id a s u lfu r d a n
n itro g e n .
29
G a m b a r 3 .4 F u r n a c e V M u n tu k p e n g u jia n v o la tile m a tte r
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
P e n g u jia n z a t m u d a h te r b a n g ( v o la tile m a tte r ) d e n g a n u k u r a n s a m p le 0 .2 1 2 m m d e n g a n
b o b o t 1 g ra m p a d a c ru s ib le d a n d i m a s u k a n p a d a fu rn a c e V M se s u a i d e n g a n m e to d e sta n d a r
y a n g te la h d i te ta p k a n .
8. T o ta l S u lfu r .
M e ru p a k a n k a n d u n g a n s u lfu r o rg a n ik d a n a n o rg a n ik d a la m s a tu a n m a s s a b a tu b a ra . S u lfu r
s e n d iri m e m b e rik a n p e n g a ru h pada lin g k u n g a n d a ri h a s il p e m b a k a ra n s e rta m e sin
p e m b a k a ra n s e p e rti tim b u ln y a k o ro s i, a p a b ila d id a p a tk a n d e n g a n h a rg a > 1 % m aka
p e n g a ru h n y a p u n s e m a k in b e s a r. P e n g u jia n s u lfu r d i la k u k a n d e n g a n s a m p le 0 .2 1 2 m m
d e n g a n b o b o t 0 .2 g r p a d a c ru s ib le p o r c e la in y a n g d i m a s u k a n k e d a la m m e s in L e c o a n a ly z e r .
G a m b a r 3 . 5 M e s in L e c o A n a ly z e r S -1 4 4 D R
S u lfu r te rs e b u t d i k o n v e rs ik a n m e n ja d i s u lfu r o k s id a s e la m a p ro s e s p e m b a k a ra n d i b a w a h
a tm o s fe r o k s ig e n d i u k u r d e n g a n c e l in fra m e ra h d a la m m e sin , h a sil p e m b a k a ra n te rs e b u t
a k a n d i b a c a o le h k o m p u te r d a n s o ftw a re b e ru p a g ra fik b e rw a rn a m e ra h s a m p a i p e m b a c a a n
g ra fik te rs e b u t s e le s a i m a k a te la h d i d a p a t h a s il k a n d u n g a n s u lfu r d a ri s a tu a n m a s s a s a m p le
b a tu b a ra d e n g a n h a s il k o re k s i d a ri b a h a n s ta n d a rd ( C R M ).
9. C r u s ib le S w e llin g N u m b e r ( C S N ).
M e ru p a k a n n o m o r d a la m s a tu a n m a s s a b a tu b a ra y a n g d ik e ta h u i d a ri u k u ra n d a n b e n tu k h a s il
re s id u p e m b a k a ra n p a d a w a k tu d ip a n a s k a n d a la m k o n d is i s ta n d a rd . P e n g u jia n in i d ila k u k a n
d e n g a n s a m p le 0 .2 1 2 g r p a d a k r u s ib le s ilik a y a n g k e m u d ia n d i p a n a s k a n /d ib a k a r d e n g a n
30
b u rn e r C S N , d a ri h a s il s is a p e m b a k a ra n te rs e b u t k e m u d ia n d ib a n d in g k a n d e n g a n b u k u
s ta n d a rd . T u ju a n y a a d a la h u n tu k m e n g e ta h u i tin g k a t k e k o k a s a n b a tu b a ra ( c o o k in g c o a l )
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
G a m b a r 3 .6 C S N B u r n e r ( K ir i ) d a n K r u s ib le C S N ( K a n a n )
1 0 . C a r b o n , H id r o g e n , N itr o g e n .
M e ru p a k a n u n s u r-u n s u r y a n g te rd a p a t p a d a s a tu a n m a s s a b a tu b a ra y a n g d ia n a lis a s e c a ra
in s tru m e n ta l. C a rb o n h a d ir d a la m b a tu b a ra b e ru p a s e n y a w a o rg a n ik c a rb o n d a n c a rb o n a te
c a rb o n , s e d a n g k a n h y d ro g e n h a d ir d a la m b e n tu k s e n y a w a o rg a n ic h id ro g e n d a n a ir.
S e d a n g k a n u n tu k n itro g e n b e ru p a o rg a n ik n itro g e n y a n g d a p a t d ik e ta h u i d e n g a n d e te k s i in fra
m e ra h p a d a a la t.
G a m b a r 3 .7 L e c o C H N A n a ly s e r
P e n g u jia n C H N m e n g g u n a k a n a la t C H N 1 0 0 d e n g a n s a m p le u k u r a n 0 .2 1 2 b o b o t ± 1 0 0 g r ,
u n tu k p e n g u jia n n y a d e n g a n m e to d e sta n d a rd A S T M d a n IS O . S e te la h d ik e ta h u i h a s il
k a n d u n g a n /k a d a r c a rb o n d a la m % y a n g k e m u d ia n d ik o re k s i d e n g a n h a s il p e n g u jia n p a d a
s a m p le s ta n d a rd .
1 1 . T r a c e E le m e n t.
M e ru p a k a n e le m e n – e le m e n y a n g h a d ir d a la m s a tu a n m a s s a s a m p le b a tu b a ra y a n g d i k e ta h u i
d a ri h a s il p e m b a k a ra n p a d a ta n u r ( F u rn a c e ). E le m e n -e le m e n y a n g h a d ir d a la m s a tu a n m a s s a 31
s a m p le b a tu b a ra y a n g te la h b e ru p a a b u , te rd iri d a ri k a n d u n g a n lo g a m d a n n o n lo g a m , y a n g
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
k e d u a -d u a n y a m e m ilik i d a m p a k b u ru k p a d a lin g k u n g a n d a n m e s in p e m b a k a ra n . U n tu k
k a n d u n g a n e le m e n d ia n ta ra n y a te rd iri d a ri : B e , C r, P b , Z n , N i d a n S iO .
G a m b a r 3 .8 A la t A A S ( A to m ic A b s o r b tio n S p e k tr o p h o to m e te r ) d a n L a r u ta n S ta n d a r (
K anan )
P e n g u jia n in i d ila k u k a n d e n g a n a la t A A S d e n g a n s a m p le 0 .2 1 2 ± 1 .g r h a s il a s h in g d a ri
p e n g u jia n a s h c o n te n t y a n g k e m u d ia n d i c a m p u rk a n d e n g a n L ith iu m T e tra b o ra t y a n g
k e m u d ia n d i p a n a s k a n d a n d ia d u k s a m p a i m e ra ta d a n d ila n ju tk a n d e n g a n p e n g e n c e ra n d e n g a n
d ic a m p u r a q u a d e s s e rta la ru ta n s ta n d a rd k e m u d ia n d ib a k a r d g n Io n S e le c tiv e e le c tro d e
m e n u ru t k a n d u n g a n u n s u r y a n g in g in d i k e ta h u i.
1 2 . C a lo r iv ic V a lu e .
M e ru p a k a n ju m la h p a n a s y a n g d i k e lu a rk a n p e r u n it k u a n tita s d a la m s a tu a n m a s s a s a m p le
b a tu b a ra y a n g d ib a k a r d e n g a n o k s ig e n d ib a w a h k o n d is i s ta n d a rd . N ila i k a lo ri b a tu b a ra
m e ru p a k a n p a ra m e te r te rp e n tin g d a la m p e n e n tu a n k u a lita s k a re n a m e ru p a k a n b a g ia n
te rp e n tin g d a la m k o n tra k p e n y e d ia a n b a tu b a ra u a p ( s te a m in g c o a l). S e la in itu ju g a u n tu k
m e m b e d a k a n tin g k a t k e m a ta n g a n b a tu b a ra .
G a m b a r 3 .9 C a lo r im e te r P a r r a la t u n tu k p e n g u jia n n ila i k a lo r i p a d a s a tu a n m a s s a s a m p le 32
b a tu b a ra .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
P e n g u jia n n ila i k a lo ri d e n g a n m e n g g u n a k a n k a lo rim e te r b o m b p a d a s a tu a n m a s s a s a m p le
b a tu b a ra y a n g d ile ta k a n d a la m s u a tu ta b u n g y a n g te la h d iis i d e n g a n o k s ig e n , h a s il y a n g d i
d a p a t d i k o re k s i d e n g a n h a sil p e n g u jia n to ta l s u lfu r y a n g te la h d i k o n v e rs i k e a c id .
33
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .4 . K o n tr o l K u a lit a s d a n K u a n tita s
M e ru p a k a n k e g ia ta n d a la m m e n g a w a s i, m e n ja g a , m e m a s tik a n d a n m e n c e g a h p e ru b a h a n k u a lita s
p ro d u k d a n k u a n tita s d a la m p e rta m b a n g a n b a tu b a ra a g a r te ta p d a la m s y a ra t – s y a ra t y a n g te la h
d ite ta p k a n d a n d is e p a k a ti. K o n tro l k u a lita s d a n k u a n tita s m e lip u ti :
1. S is te m d a n m e to d e p e n g a m b ila n b a tu b a ra d a ri k e p a s tia n k u a lita s y a n g d id a p a t s a m p a i
d e n g a n p e n g a n g k u ta n ( h a u lin g ) d a n p e n im b u n a n .
2. K o n d is i d a n k e s a m p a ia n u n it a ta u a la t y a n g d ig u n a k a n d a la m m e m e n u h i s is te m y a n g
d ig u n a k a n s e rta ta rg e t y a n g d in g in k a n .
3. K o n d is i lin g k u n g a n d a n te m p a t d a ri k e g ia ta n p e n g a m b ila n , p e m u a ta n , p e n im b u n a n s e rta
p e n c a m p u ra n p ro d u k ( B le n d in g ).
4. M e n e n tu k a n dan m e m a s tik a n ju m la h se rta k u a lita s p ro d u k b a tu b a ra d a la m p ro se s
p e n c a m p u ra n d a n ju g a p e n g a n g k u ta n d a la m m e m e n u h i ta rg e t k u a lita s d a n k u a n tita s y a n g
d iin g in k a n .
5. L o k a s i d a n ju m la h p e n g a m b ila n s a m p le y a n g m e w a k ili d a ri s e tia p k e g ia ta n p e rta m b a n g a n .
6. K e s a m p a ia n d a la m p e n e lu s u ra n p e n g u k u ra n p a d a a la t d a la m p e n g u jia n s a m p le s e s u a i d e n g a n
m e to d e s ta n d a r y a n g m e n g a c u d a n d ia k u i s e c a ra in te rn a s io n a l.
7. S is te m y a n g d ig u n a k a n d a la m p e n g u jia n s e rta p e n g a m b ila n s a m p le d a la m m e m a s tik a n
k u a lita s p ro d u k m e n g a c u s e c a ra in te rn a s io n a l d a n d ig u n a k a n b e rd a s a rk a n k e s e p a k a ta n
b e rs a m a d a n p e ra tu ra n y a n g d ite ta p k a n o le h in s ta n s i a ta u b a d a n y a n g b e rw e n a n g te rk a it b a ik
s e c a ra in te rn a s io n a l, n a s io n a l m a u p u n re g io n a l.
H a l – h a l y a n g h a ru s d i p e rh a tik a n d a la m m e la k u k a n k o n tro l k u a lita s d a n k u a n tita s a d a la h :
1. H a ru s m e n g e n a l d a n m e n g e ta h u i k o n d is i s p e c ifik a s i u n it d a n a la t y a n g d ig u n a k a n d a la m
p e n g a m b ila n , p e n g a n g k u ta n , p e n im b u n a n d a n p e n g u jia n p a d a k e g ia ta n p e rta m b a n g a n .
34
2. M e n g e n a l d a n m e n g e ta h u i lo k a s i s a m p lin g y a n g d i ja d ik a n a c u a n d a la m m e lih a t p e ru b a h a n
k u a lita s .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
3. S is te m d a n m e to d e s ta n d a rd d a la m p e n g e rja a n n y a te la h d iu ji k e a b s a h a n n y a d a n d i s e p a k a ti
b e rs a m a , b a ik itu m e to d e b a k u m a u p u n tid a k b a k u a ta u p u n h a s il a n a lis a d a ri in s p e k s i d i
la p a n g a n .
4. M e n g e ta h u i fa k to r – fa k to r y a n g m e m p e n g a ru h i a d a n y a p e ru b a h a n p a d a k u a lita s d a n
k u a n tita s p ro d u k .
5. M e n g e n a l d a n m e n g e ta h u i a la t – a la t y a n g d ib u tu h k a n d a n d i p e rg u n a k a n s e s u a i d e n g a n
s ta n d a rd y a n g te la h d i te ta p k a n .
D a ri p e rn y a ta a n d i a ta s is tila h k o n tro l k u a lita s b u k a n h a n y a p a d a s a a t p e n g u jia n d i la b o ra to riu m a ta u
p re p a ra s i y a n g s u d a h a d a k e n d a li d a n ja m in a n m u tu n y a m e la in k a n ju g a y a n g m e m ilik i k a ita n n y a
d a la m k e g ia ta n p e rta m b a n g a n . D a la m k o n tro l k u a lita s d a n k u a n tita s d i la p a n g a n tid a k m e n g g u n a k a n
m e to d e b a k u a ta u s ta n d a rd m e la in k a n m e to d e d a n s is te m h a s il p e n g e m b a n g a n d a ri h a s il a n a lis a
in s p e k s i d i la p a n g a n k e c u a li u n tu k s a m p lin g p a d a ro m , tru c k , g ra b /b u c k e t, c o n v e y o r, b a rg e /v e s s e l d a n
s to c k p ile .
I I .4 .1 . S is t e m d a n m e t o d e p e n g a m b ila n , p e n g a n g k u t a n d a n p e n im b u n a n b a t u b a r a d a r i k u a lit a s
b a tu b a r a
S is te m y a n g d im a k s u d a d a la h s is te m a ta u m e to d e y a n g d i te ra p k a n p a d a s a a t p e n a m b a n g a n
k h u s u s n y a p a d a s a a t p e n g a n g k u ta n d a ri p ro d u k d i p it s a m p a i d e n g a n p e n im b u n a n d i ro m b e rd a s a rk a n
k u a lita s b a tu b a ra d a ri k a ra k te r b a tu b a ra n y a p a d a s a a t p e n g e n d a p a n . B e b e ra p a s is te m d a n m e to d e
y a n g d i te ra p k a n d i a n ta ra n y a :
1. P e m b a g ia n P e n g a m b ila n p ro d u k p it ( p ly b y p ly ) b e rd a s a rk a n k a ra k te r d a n k e te b a la n
b a tu b a ra n y a .
2. P e m is a h a n p ro d u k u n tu k p e n im b u n a n b e rd a s a rk a n k u a lita s b a tu b a ra y a n g d i d a p a t d a ri h a s il
p it, b o re c o re s a m p le a ta u h a s il e x p lo ra s i d e ta il.
3. M e n e n tu k a n p ro d u k b a tu b a ra y a n g s e b a g a i p ro d u k u ta m a d a n s e b a g a i p e n c a m p u r (B le n d in g ). 35
4. M e n e n tu k a n p e rb a n d in g a n ju m la h u n tu k k e g ia ta n p e n c a m p u ra n p ro d u k .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
T u ju a n n y a d i te ra p k a n n y a s is te m in i s e la in u n tu k m e n g k o n tro l k u a lita s b a tu b a ra ju g a m e m b u a t
k e g ia ta n p e rta m b a n g a n in i te re n c a n a s e c a ra s is te m a tis d a n m e m u d a h k a n p e k e rja a n d a la m k e g ia ta n
p e n g a w a s a n d a n m e m a n ta u k u a lita s d a n k u a n tita s n y a , b a ik s e b a g a i ta rg e t p ro d u k s i a ta u p u n
p e n c a m p u ra n p ro d u k (b le n d in g ) . S e d a n g k a n k o n tro l k u a lita s d is in i a d a la h m e n c e g a h d a n
m e m in im a la s i te rc a m p u rn y a p ro d u k m a te ria l n o n b a tu b a ra b a ik d a ri h a n d lin g m a u p u n d a ri
m a in te n a n c e n y a a ta u p u n fa k to r la in .
I I .4 .2 K o n d is i d a n k e s a m p a ia n u n it a t a u a la t .
U n it a ta u p e ra la ta n y a n g d ib u tu h k a n d a n d i p e rg u n a k a n h a ru s m e m a d a i d a la m p e la k s a n a a n y a
s e s u a i d e n g a n s is te m y a n g in g in d i te ra p k a n d a n ta rg e t y a n g in g in d i c a p a i. H a l – h a l y a n g m e n ja d i
p e rtim b a n g a n d a la m p e n g o p e ra s ia n y a , y a itu :
1. D im e n s i p e n a m p a n g b u c k e t s e rta k a p a s ita s m a k s im u m , b a ik u n tu k u n it e x c a v a to r m a u p u n
d u m p tru c k a ta u je n is H D ( re m o v a l s o il & O B ).
2. K e m a m p u a n u n it d a la m m e la k u k a n k e g ia ta n o p e ra s io n a l d i p e rta m b a n g a n k h u s u s n y a p a d a
s a a t p e n g a m b ila n p ro d u k d i la p is a n b a tu b a ra d a n p e m u a ta n d e n g a n k o n v e y o r.
3. K o n d is i p a d a a la t a ta u u n it d a la m k e a d a a n te ra w a t d a n te rja g a b a ik d a ri k o ro s i, p e lu m a s a n
s e rta m e sin .
4. J u m la h u n it y a n g d i b u tu h k a n u n tu k m e la k u k a n k e g ia ta n o p e ra s io n a l d a ri : P e n g a m b ila n
P ro d u k , p e m in d a h a n O v e rb u rd e n d a n to p s o il s e rta ta rg e t p ro d u k s i y a n g d iin g in k a n .
5. K o n d is i p a d a a la t p re p a ra s i d a n p e n g u jia n te ra w a t d a n te rja g a .
6. K e m a m p u a n a la t p e n g u jia n te la h te rk a lib ra s i d a n te rv a lid a s i, a p a b ila p e rlu te la h te ra k re d ita s i
d a n te rs e rtifik a s i.
P e m b e d a a n d a n p e rtim b a n g a n p a d a u n it d ib a g i b e rd a s a rk a n ru a n g k e rja n y a d i la p a n g a n s e p e rti
p a d a m e s in je n is e x c a k o m a ts u P C 1 2 5 0 a ta u s e ta ra n y a u n tu k re m o v a l o v e rb u rd e n , to p s o il d a n
In te rb u rd e n , s e d a n g k a n u n tu k je n is k e la s d ib a w a h n y a u n tu k p e n g a m b ila n b a tu b a ra p a d a la p is a n . 36
A la t s e d o t a ir u n tu k m e n g h ila n g k a n g e n a n g a n a ir d a n b a n jir p a d a d a e ra h p it, a p a b ila s y s te m
d ra in a s e m e n g a la m i m a s a la h .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .4 .3 K o n d is i lin g k u n g a n d a n t e m p a t
L in g k u n g a n d a n te m p a t ju g a m e ru p a k a n s a la h s a tu fa k to r p e n d u k u n g d a la m k e g ia ta n
o p e ra s io n a l p e rta m b a n g a n d a la m m e n g e ja r ta rg e t y a n g in g in d i c a p a i b a ik d a ri s e g i k u a lita s d a n
k u a n tita s . D a la m p e re n c a n a a n ta m b a n g d a ri m u la i p e m b a n g u n a n p it, ja la n a n g k u t, d is p o s a l,
s a m p a i te m p a t p e n im b u n a n p e rlu m e m p e rh a tik a n k o n d is i lin g k u n g a n s e k ita r. H a l – h a l y a n g
m e n ja d i p e rtim b a n g a n d ia n ta ra n y a :
1. T o p o g ra fi m o rfo lo g i
2. In fra s tru k tu r te rd e k a t.
3. J a lu r d a n s a ra n a T ra n s p o rta s i.
4. A k s e s Ja la n .
K e e m p a t fa k to r d ia ta s m e ru p a k a n p o n d a s i d a la m o p e ra sio n a l p e rta m b a n g a n s e d a n g k a n y a n g
m e m ilik i p e ra n d a la m k e g ia ta n k o n tro l k u a lita s d a n k u a n tita s y a itu to p o g ra fi d a n m o rfo lo g i y a n g
b e rh u b u n g a n d e n g a n k o n d is i g e o lo g i, p e n a ta a n ru a n g R O M s a m p a i d e n g a n B a rg e , k o n d is i p it p a d a
s a a t ta m b a n g b e rja la n . D a la m p e re n c a n a a n ta m b a n g y a n g m e n ja d i p rio rita s u ta m a s e la in fa k to r d i a ta s
a d a la h ju m la h c a d a n g a n te ru k u r y a n g m e n ja d i p rio rita s d a ri k e s e lu ru h a n a re a .
I I .4 .4 M e n e n t u k a n J u m la h d a n M e m a s t ik a n J u m la h d a la m P e n im b u n a n d a n P e n c a m p u r a n
P roduk.
D a la m k e g ia ta n ta m b a n g d e n g a n k u a lita s d a n k u a n tita s y a n g b e rb e d a - b e d a y a n g d i s e b a b k a n
k a re n a k a ra k te r b a tu b a ra n y a , m a k a d i p e rlu k a n p e re n c a n a a n d a n p e rh itu n g a n d a la m m e la k u k a n ta rg e t
k u a lita s y a n g in g in d i c a p a i b e rd a s a rk a n k u a n tita s y a n g te rs e d ia . F a k to r y a n g d ija d ik a n p e rtim b a n g a n
d a la m p e n im b u n a n , m e m a s tik a n ju m la h d a n p e n c a m p u ra n p ro d u k :
1. K u a lita s b a tu b a ra .
2. R a tio p e rb a n d in g a n d e p o s it b a tu b a ra d a ri m a s in g – m a s in g k u a lita s b a tu b a ra y a n g a d a . 37
3. R a tio p e rb a n d in g a n k u a lita s b a tu b a ra d e n g a n m a s in g -m a s in g to n a g e n y a .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
S e d a n g k a n h a l – h a l y a n g h a ru s m e n ja d i p e rh a tia n d a la m p e n c a m p u ra n p ro d u k a d a la h r a tio
p e r b a n d in g a n a n ta r a p a r a m e te r d a r i k u a lita s p r o d u k y a n g a d a d e n g a n to n a g e d a r i m a s in g – m a s in g
p r o d u k . P e rh itu n g a n d a la m p e n c a m p u ra n p ro d u k ( b le n d in g ) d a la m h a l in i p ro d u k n y a y a n g d iru b a h
a d a la h T S , y a itu ;
(( T S A x T o n a g e A ) + ( T S B x T o n a g e B )) / T o ta l T o n a g e = T S b le n d in g a n .
S e d a n g k a n , u n tu k m e to d e y a n g la in m e n g g u n a k a n ra tio p e rb a n d in g a n ( s e n s itifita s b le n d in g ), y a itu ;
M isa ln y a :
T S A : 2 ,0 % , T S B : 0 ,5 % ,
S y a ra t u ta m a d a la m k e g ia ta n b le n d in g p ro d u k u ta m a h a ru s le b ih b e s a r d e n g a n p ro d u k p e n c a m p u r,
d a la m h a l in i T o n a g e T S B > T o n a g e T S A a g a r m e n g h a silk a n T S d ib a w a h 1 % , U n tu k k a su s d i a ta s
T S A : T S B = 1 : 4 , a rtin y a , n : 4 . D e n g a n a s u m s i b a h w a D T y a n g te rs e d ia 2 0 D T .
U n tu k n : 2 , d im a n a n = ju m la h p e rb a n d in g a n to n a g e d a ri p ro d u k .
( 0 ,5 + 2 ,0 ) /2 = 1 ,2 5 % , m a k a to n a g e 5 0 % : 5 0 % d a r i m a s in g -m a s in g p r o d u k a ta u 1 0 D T : 1 0 D T
y a n g m a s u k k e c ru s h e r p la n t a k a n m e n g h a s ilk a n 1 , 2 5 % .
U n tu k n : 3 , d im a n a n = ju m la h p e rb a n d in g a n to n a g e d a ri p ro d u k .
( 0 ,5 + 2 ,0 ) /3 = 0 ,8 3 % , m a k a to n a g e 3 3 ,3 % A : 6 6 ,7 % B a ta u 7 D T : 1 3 D T y a n g m a s u k k e C P
a k a n m e n g h a s ilk a n 0 ,8 3 % .
38
U n tu k n : 4 , d im a n a n = ju m la h p e rb a n d in g a n to n a g e d a ri p ro d u k .
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
( 0 ,5 + 2 ,0 ) /4 = 0 ,6 2 5 % , m a k a to n a g e 2 5 % A : 7 5 % B a ta u 5 D T : 1 5 D T y a n g m a s u k k e C P a k a n
m e n g h a s ilk a n 0 ,6 2 5 % .
A p a b ila p e rs a m a a n p e rta m a d a n k e d u a d ik o re la s ik a n , p e rm is a la n to ta l to n a g e d a ri p ro d u k y g a d a 4 0
0 0 0 to n d e n g a n m a sin g -m a s in g 3 0 0 0 0 to n B d a n 1 0 0 0 0 to n A .
P e rsam aa n 1 :
(( T S A + T o n a g e A ) x ( T S B + T o n a g e B )) / T o ta l T o n a g e = T S b le n d in g a n
(( 2 ,0 + 1 0 0 0 0 ) x ( 0 ,5 + 3 0 0 0 0 ) )/4 0 0 0 0 = 0 ,8 7 5 % ,
n ; 4 , a rtin y a 2 5 % A : 7 5 % B .
( ( 2 ,0 + 1 3 3 3 3 ) x ( 0 ,5 + 2 6 6 6 7 ) )/4 0 0 0 0 = 0 ,8 3 % .
n ; 3 , a r tin y a 3 3 ,3 % A : 6 6 ,7 % B . √ ( S e s u a i d g p e r s 2 d n g n : 3 )
(( 2 ,0 + 2 0 0 0 0 ) x ( 0 ,5 + 2 0 0 0 0 ) )/4 0 0 0 0 = 0 ,7 5 % ,
n ; 2 , a rtin y a 5 0 % A : 5 0 % B .
D a ri k e d u a m e to d e y a n g a d a y a n g d ig u n a k a n p a d a u m u m n y a a d a la h p e rs a m a a n 2 , s e d a n g k a n
p e rs a m a a n 1 m e ru p a k a n h a s il a n a lis a d a ri k e g ia ta n in s p e k s i d i la p a n g a n n a m u n p e rlu p e n g u jia n le b ih
la n ju t. S e d a n g k a n tu ju a n p e n g k o re la s ia a n in i a d a la h h a n y a u n tu k p e m b a n d in g a n ta ra m e to d e y a n g
a d a . K e g ia ta n p e n c a m p u ra n in i m e la lu i D T ( D u m p T ru c k ) – C p – C o n v e y o r – S to c k y a rd –
P e n g a d u k a n d g n u n it D o z e r.
39
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
P it p r o d u c t
T h ic k n e s , C h a r a c t e r is t ic & M
Q u a lit y
O
N
C o a l G e t t i n g & D i v id i n g I
P ly b y P ly o r N o t
T
O
R
L o a d in g , D u m p in g , h a u le d t o
ROM
I
B a s e d o n Q u a lit y
N
G
S im u la t io n & C a lc u la t io n
B le n d in g A c t io n
B a s e d o n Q u a lit y T a r g e t
Q
U
A
B le n d in g A c t
L
T o C r u s h e r P la n t
I
T
S a m p lin g O n S t o c k p ile &
Y
L o a d in g t o B a r g e
F o r c h e c k A s s u r a n c e Q u a lit y
G a m b a r 4 .1 D ia g r a m A lir K e g ia ta n P e r ta m b a n g a n K u a lita s P r o d u k
40
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
I I .4 .5 K e s a m p a ia n P e n e lu s u r a n P e n g u k u r a n p a d a A la t d a la m P e n g u j ia n .
P e n g u k u ra n p a d a a la t u n tu k p e n g u jia n h a ru s m e m ilik i tin g k a t k e p e rc a y a a n ( c o n fid e n c e lim it ) d a ri
ju m la h n ila i y a n g te la h d i te n tu k a n . U n tu k m e m ilik i tin g k a t k e p e rc a y a a n y a n g tin g g i m a k a d i la k u k a n
p e n g u k u ra n d e n g a n re fe re n c e m a te ria l d a n S p ik e d s a m p le d e n g a n m e lih a t p e rb a n d in g a n a k u ra s i d a n
p re s is in y a . D a la m m e lih a t a k u ra s i d a n p re s is i, d e n g a n m e lih a t d a n m e n g k o n tro ln y a p a d a c o n tro l c h a rt
u n tu k m e m a s tik a n k u a lita s d a ri k o n tro l s ta tis tik y a n g te la h d i te ta p k a n te rh a d a p n ila i b ia s y a n g a d a .
A la t y a n g t e r k a lib r a s i
- V a lid a s i
S t a n d a r d S a m p le R e f f &
S p ik e d S a m p le
X S e r ie P e n g u k u r a n
T e s t S t a t is t i c a l
D e t e c t io n O u t lie r &
N o r m a lit y
T e s t S t a t is t i c a l
C o n f id e n c e i n t e r v a l &
S ig n if ic a n c e t e s t
C o m p a r is o n & E v a l u a t e
R e s u lt
R u n S t a t is t ic a l
A n a ly s R e s u lt
41
G a m b a r ( 4 .2 ) . D ia g r a m A lir d a la m m e la k u k a n p e n e lu s u r a n p e n g u k u r a n p a d a a la t
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
A k u ra s i a d a la h n ila i a ta u h a s il y a n g m e n u n ju k a n tin g k a t k e d e k a ta n a n ta ra n ila i ra ta -ra ta ( m ean )
y a n g d id a p a t d a ri s e ju m la h s e rie p e n g u k u ra n d e n g a n n ila i re ffe re n c e ( n ila i b e n a r ).
A k u ra s i d itu n ju k a n d e n g a n n ila i b ia s
P re s e n c e o f b ia s
P re s is i m e n u n ju k a n k e d e k a ta n d ia n ta ra h a s il-h a s il p e n g u jia n y a n g in d e p e n d e n d ib a w a h k o n d is i y a n g
d i te n tu k a n ( re p e a tib ility & re p ro d u c ib ility ).
N o t p re c is e
D a la m k e g ia ta n k o n tro l k u a lita s p a d a a la t p e n g u jia n tid a k p e rn a h lu p u t d a ri k e s a la h a n ( e rro r ) b a ik
s e c a ra s y s te m a ta u p u n d a ri m a n u s ia n y a ( ra n d o m ) . K e s a la h a n – k a s a la h a n y a n g te rja d i te rb a g i
m e n ja d i d u a :
1. S y s te m a tic e rro r : K e s a la h a n y a n g te rja d i k a re n a s is te m s e p e rti a la t a ta u m e to d e n y a .
2. R a n d o m e rro r : K e s a la h a n y a n g te rja d i k a re n a fa k to r p e n g u jin y a ( a n a lis ) tid a k m e n g ik u ti
p ro s e d u r s ta n d a r a ta u k a re n a fa k to r la in .
42
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
K a re n a a d a k e s a la h a n p a d a p e n g u jia n te rs e b u t d a p a t te rlih a t d a ri p re s is i, a p a b ila te rla lu ja u h m a k a
p e rlu d ila k u k a n re -te s t . U n tu k m e n g e ta h u i tin g k a t p re s is i d a ri p e n g u jia n a n ta r la b a ta u d a la m s a tu
la b o ra to riu m . Is tila h te rs e b u t d ik e n a l :
1. R e p e a ta b ility : L a b o ra to riu m , a n a lis d a n p e ra la ta n y a n g s a m a se rta d a la m in te rv a l w a k tu
yang pendek.
2. In te rm e d ia te R e p ro d u c ib ility : D i d a la m la b o ra to riu m y a n g s a m a d ila k u k a n o le h a n a lis , p a d a
h a ri d a n p e ra la ta n y a n g b e rb e d a .
3. R e p ro d u c ib ility : L a b o ra to riu m , p e ra la ta n d a n a n a lis y a n g b e rb e d a s e rta d a la m in te rv a l w a k tu
y a n g la m a .
H u b u n g a n a n ta ra e rro r d e n g a n p e n g u jia n s e b a g a i b e rik u t :
A c c u ra te b u t n o t P re c is e
L arg e R E an d n o S E
A c c u ra te & P re c is e
S m a ll R E & N O S E
N o t a c c u ra te b u t p re c ise
S m a ll R E & L a rg e S E
N o t a c c u ra te , N o t P re c is e
43
G a m b a r 4 .3 T ip e illu s tr a s i a k u r a s i d a n p r e s is i p a d a p e n g u k u ra n
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
D a ri g a m b a r d ia ta s te rlih a t u n tu k m e n g e ta h u i tin g k a t a k u ra s i d a n p re s is i d a ri h a s il re p lik a s i a ta u
d u p lik a s i b e b e ra p a k a li p e n g u k u ra n / p e n g u jia n . S e d a n g k a n u n tu k s ig n ific a n c e le v e l d e n g a n
m e n g g u n a k a n n ila i k ritis y a n g d i d a p a t d a ri ta b e l t.
I I .4 .6 . S is t e m y a n g d ig u n a k a n d a la m p e n g a m b ila n s a m p le d a n p e n g u jia n .
S is te m y a n g d ig u n a k a n d a la m p e n g a m b ila n s a m p le , p e n g u jia n s e rta k a lib ra s i d a n v a lid a s i m e n g a c u
p a d a S is te m S ta n d a rd In te rn a s io n a l ( S I ). S is te m S ta n d a rd In te rn a s io n a l d ib u a t o le h o rg a n is a s i
/le m b a g a d i s e b u t d e n g a n IS O ( In te rn a tio n a l S ta n d a rd O rg a n iz a tio n ) m e m b a w a h i s ta n d a rd m e th o d e
y a n g a d a d i b e b e ra p a n e g a ra s e p e rti :
1. A S T M ( A m e ric a n S o c ie ty T e s tin g M a te ria l ).
2. B S ( B ritis h S ta n d a rd )
3. J S ( Ja p a n e s se S ta n d a rd )
4. A S ( A u s tra lia n S ta n d a rd )
5. S N I ( S ta n d a rd N a tio n a l In d o n e s ia ).
IS O m e ru p a k a n s ta n d a rd y a n g d ig u n a k a n d i s e lu ru h la b o ra to riu m y a n g a d a d i d u n ia . U n tu k
m e n d a p a tk a n k e p e rc a y a a n d a ri p e la n g g a n a ta u p e n g g u n a ja s a m a k a d i la k u k a n p e n g u jia n d a n
k e la y a k a n d a la m p e n g o p e ra s ia n la b o ra to riu m a g a r te rs e rtifik a s i d a la m s k a la in te rn a s io n a l, s e d a n g k a n
u n tu k a k re d ita s i m e la lu i K A N ( K o m is i A k re d ita s i N a s io n a l ) d a n B S N ( B a d a n S ta n d a r N a s io n a l ).
L a b o ra to riu m y a n g s u d a h te rs e rtifik a s i w a jib m e la k u k a n te s t u ji b a n d in g d e n g a n m e n g g u n a k a n
S a m p le L Q S I ( L a b o ra to riu m Q u a lity S e rv ic e In te rn a tio n a l ). S e d a n g k a n u n tu k s is te m m a n a je m e n
IS O m e la k u k a n p e m b a ru a n s e tia p 3 ta h u n s e k a li d e n g a n m e to d e s ta n d a rd n y a .
44
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
IS O
In t e r n a t io n a l S t a n d a r d o r g a n iz a t io n
ASTM A u s t a lia n S t d Ja p a n e se S td SN I
G a m b a r 4 .3 h u b u n g a n a n ta r a s is te m in te r n a tio n a l s ta n d a r d d g n n a s io n a l
P a d a u m u m n y a y a n g d ig u n a k a n o le h la b o ra to riu m y g a d a a d a la h IS O d a n A S T M . U n tu k d i
b e b e ra p a te m p a t m e n g g u n a k a n s ta n d a r n a s io n a l m a s in g -m a s in g .
45
S u c o f in d o S B U M in e r a l B a t u b a r a | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
II.5 D r a u g h t S u r v e y
M e r u p a k a n k e g ia t a n d a la m m e n e n t u k a n ju m la h m u a t a n t o n g k a n g a t a u v e s s e l d e n g a n m e lih a t
d is p la c e m e n t p a d a k a p a l s e s u d a h d a n s e b e lu m d im u a t . T e r d ir i d a r i in it ia l ( a w a l ) d a n f in a l ( a k h ir ),
in it ia l d ilih a t k e t ik a t o n g k a n g a t a u v e s e l d a la m k e a d a a n k o s o n g a t a u b e lu m d im u a t , s e d a n g k a n f in a l
m e r u p a k a n k e a d a a n d im a n a t o n g k a n g a t a u v e s s e l s u d a h t e r is i a t a u d im u a t . D is p la c e m e n t p a d a
t o n g k a n g a t a u v e s s e l d a p a t d ilih a t d e n g a n a d a n y a t a n d a ( m a r k ) p a d a la m b u n g k a p a l. Is t ila h y a n g
d ig u n a k a n d a la m p e n a m a a n t a n d a ( m a r k ) p a d a la m b u n g k a p a l, y a it u :
1 . F o rw a rd S ta rb o a rd ( F s ) d a n fo rw a rd p o rt ( F p ).
2 . M id S t a r b o a r d ( M s b ) d a n M id p o r t ( M p ) .
3 . A fte r S ta rb o a rd ( A fs ) d a n a fte r p o rt ( A fp ).
Tug Boat FP M p A fp
B a rg e
Fs M sb A fs
P o rt
L o a d e r fro m
S t o c k p ile
46
G a m b a r 5 .1 Illu s t r a s i L o a d in g c o a l c a r g o p a d a p o r t
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
D e f in is i u n t u k d r a u g h t S u r v e y :
• F o r w a r d s t a r b o a r d : D r a u g h t m a r k y a n g b e r a d a p a d a b a g ia n d e p a n la m b u n g t o n g k a n g y a n g
p o s is in y a t e p a t b e r s e b e la h a n d e n g a n p o r t ( p o s is i d im a n a b a g ia n t o n g k a n g b e r s a n d a r ) .
• F o r w a r d P o r t : D r a u g h t m a r k y a n g b e r a d a p a d a b a g ia n d e p a n la m b u n g t o n g k a n g y a n g
t e r le t a k s e t e la h p a n g k a la n ( p o r t ) a t a u p o s is i d im a n a s e t e la h b a g ia n t o n g k a n g b e r s a n d a r .
• M id s t a r b o a r d : D r a u g h t m a r k y a n g b e r a d a p a d a b a g ia n t e n g a h k a p a l d im a n a t o n g k a n g
b e rsa n d a r .
• M id p o r t : D r a u g h t m a r k y a n g b e r a d a p a d a b a g ia n t e n g a h t o n g k a n g s e t e la h d im a n a t o n g k a n g
b e rsa n d a r.
• A f t e r s t a r b o a r d : D r a u g h t m a r k y a n g b e r a d a p a d a b a g ia n b e la k a n g t o n g k a n g d im a n a
to n g k a n g b e rsa n d a r.
• A f t e r p o r t : D r a u g h t m a r k y a n g b e r a d a p a d a b a g ia n t o n g k a n g d im a n a s e t e la h t o n g k a n g
b e rsa n d a r.
• M e a n : R a t a - r a t a y a n g d ih it u n g u n t u k f o r w a r d , a f t , m id s h ip .
• T P C ( t o n p e r c e n t im e t e r im m e r s io n ) : b e r a t y a n g d ib u t u h k a n u n t u k m e r u b a h d r a u g h t p e r 1
cm .
• L C F ( le n g t h c e n t e r o f f lo a t a t io n ) : J a r a k t it ik a p u n g p a d a d r a u g h t t e r t e n t u d e n g a n m id s h ip .
• H y d r o s t a s t ic t a b le : T a b e l h y d r o s t a t ik y a n g d id a p a t k a p t e n k a p a l u n t u k p e r h it u n g a n ju m la h
ca rg o .
• D is p la c e m e n t : J u m la h v o lu m e a ir y a n g d ip in d a h k a n k e t o n g k a n g / b a r g e d ih it u n g d a r i r a t a -
r a t a y a n g d id a p a t k a n p a d a t a b e l h y d r o s t a s t ik .
• E v e n k e e l : A p a b ila t r im k a p a l d a la m k e a d a a n d a t a r .
• P lim s o l : N a m a la in d a r i m a r k a s u m m e r lo a d lin e .
• M T C ( M o m e n t T o C h a n g e T r im ) : G a y a d a la m lo n g t o n u n t u k d ik a lik a n ja r a k d a la m f e e t 47
u n tu k m e ru b a h k e sa tu a n cm .
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
• T r im : p e r b e d a a n a n t a r a m e a n f o r w a r d d e n g a n a ft .
• S t e m :K o r e k s i P e r b e d a a n a n t a r a R a t a - r a t a d r a u g h t h a lu a n d e n g a n b u r it ( t r im ) d e n g a n ja r a k
f o r w a r d p e r p e n d ic u la r d a n d r a g h t h a lu a n t e r h a d a p ja r a k a n t a r a d r a u g h t h a lu a n d e n g a n b u r it
( L B M ).
• S t e r n : K o r e k s i P e r b e d a a n R a t a – r a t a d r a u g h t h a lu a n d a n b u r it ( t r im ) d e n g a n ja r a k a f t
p e r p e n d ic u la r d a n d r a u g h t a f t t e r h a d a p ja r a k a n t a r a d r a u g h t h a lu a n d a n b u r it ( L B M ) .
• M id : K o r e k s i P e r b e d a a n r a t a – r a t a d r a u g h t h a lu a n d a n b u r it ( t r im ) d e n g a n ja r a k m id
p e r p e n d ic u la r d a n d r a u g h t m id s h ip t e r h a d a p ja r a k a n t a r a d r a u g h t h a lu a n d a n b u r it ( L B M ) .
• M e a n o f m e a n : r a t a - r a t a d a r i r a t a – r a t a d r a u g h t h a lu a n d a n b u r it a n d e n g a n m id d r a u g h t
s e t e la h d ik o r e k s i t e r h a d a p ja r a k p e r p e n d ic u la r d e n g a n ja r a k a n t a r a d r a u g h t h a lu a n d a n b u r it
( L B M ).
• M e a n o f m e a n c o rre c te d : ra ta -ra ta d a r i m e a n o f m e a n d e n g a n m id s h ip d r a u g h t e t e la h
d ik o r e k s i t e r h a d a p ja r a k p e r p e n d ic u la r d e n g a n ja r a k a n t a r a d r a u g h t h a lu a n d a n b u r it ( L B M .
P e la k s a n a a n p e m b a c a a n d r a u g h t d a n p e n g u k u r a n " c o n s u m a b le s " ( m in y a k , a ir b a lla s t , a ir t a w a r )
s e b e lu m d a n s e s u d a h p e m u a t a n a t a u p e m b o n g k a r a n , u n t u k m e n g e t a h u i b e s a r n y a n ila i " n e t
d is p la c e m e n t " . N ila i t e r s e b u t d ip e r o le h d a r i s e lis ih h a s il p e m b a c a a n a w a l d a n a k h ir . M e n g a c u
sa m a d e n g a n b e ra t b e n d a te rse b u t.
48
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
K e te ra n g a n :
: D ra u g h t m a rk
: Keel
: P lim s o l M a r k
: D e c k lin e
G a m b a r 5 .2 Illu s t r a s i k o n d is i m a r k y a n g d ig u n a k a n u n t u k d r a u g h t S u r v e y .
P o r t S id e D r a f t S t a r b o a r d s id e D r a ft
F o re d ra ft : d f = (d fp + d fs )/ 2
d fp d fs
dm p dm s
M id d r a f t : d m = ( d p + d s ) / 2
dap das
A ft D ra ft : d a = ( d a p + d a s )/ 2
G a m b a r 5 .3 Illu s t r a s i p e r h it u n g a n a w a l d r a u g h t m a r k
49
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
In it ia l/ F in a l
- S h ip p a r t ic u la r
- D fp , D fs .
C o r r e c t io n - D m p , D m s.
- D a fp , D a fs
( T r im x D is t a n c e ) / L B M - M e a n D f, D m , D a
- T r im
S t e m , S t e r n , M id
R e s u lt D r a f t - C o r r
M e a n F w d & A ft
M e a n s C o rr
M ean of m ean
M e a n o f m e a n c o rre c te d
D is p la c e m e n t
- C a lc f r o m
m ean of m ean
co rr
- H y d r o s t a s t ic
t a b le .
D is p la c e m e t C o r r
- 1 s t t r im c o r r e c t io n
- Im p e r ia l
- 2 n d t r im c o r r e c t io n
S y ste m
- O b s e r v e d D e n s it y .
- M e t r ic D e d u c t e d w e ig h t
- C o r r e c t io n D e n s it y
S y ste m
- L is t C o r r e c t e d
N e t D is p la c e m e n t
G a m b a r 5 .4 D ia g r a m a lir d r a u g h t S u r v e y p a d a t o n g k a n g a t a u v e s s e l
50
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
F o r m P r o s e d u r P e la k s a n a a n D r a u g h t S u r v e y
In s t r u k s i K e r ja
- S a fe ty
E q u ip m e
n t. - C lie n t
- D ra u g h t - O rd e r
S u rv e y - T y p e ca rg o
E q u ip m e S h ip P a r t ic u la r s - N a m e b a rg e /
n t. V e s s e l.
- F la g
H o ld C le a n lin e s
In s p e c t io n
In p u t D r a ft
R e p o r t a n d P r o v is io n a l
d ra u g h t S u rv e y
G a m b a r 5 .5 P r o s e d u r P e la k s a n a a n d r a u g h t s u r v e y
A la t - a la t y a n g d ib u t u k a n u n t u k m e la k u k a n d a r a u g h t S u r v e y :
S a f e t y e q u ip m e n t & D r a u g h t E q u ip m e n t .
- S a f e t y H e lm
- L if e v e s t J a c k e t
- G lo v e h a n d s
- P u m p f o r d e n s it y m e a s u r e m e n t f r o m b a lla s t w a t e r t a n k .
- L in e a r m e a s u r in g d e v ic e .
- D r a u g h t R o u g h r e a d in g d e v ic e .
- H y d r o m e t e r T o o ls
- T a n k s o u n d in g t a p e 51
- W a te r p a ste
- B in o c u lla r
- C a lc u a t o r
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
- N o te b o o k
- Lam p
K e t e lit ia n d a la m d r a u g h t s u r v e y ju g a d it e n t u k a n o le h k o n d is i k a p a l b e s e r t a t a n d a d r a u g h t - n y a , d a n
d ip e n g a r u h i o le h b e r b a g a i k e m u n g k in a n d a r i t a n g k i- t a n g k i d i a t a s k a p a l s e r t a k e t e lit ia n d a r i k a lib r a s i
t a n g k i- t a n g k i t e r s e b u t .
S e t ia p k a p a l p e n g a n g k u t m u a t a n c u r a h d ile n g k a p i d e n g a n d o k u m e n - d o k u m e n b e r ik u t :
a. H y d r o s t a t ic C u r v e ( D a ft a r H y d r o s t a t ik ) / D is p la c e m e n t T a b le ( L a m p ir a n 8 )
b. T r im a n d S t a b ilit y T a b le
c. T a n k S o u n d in g C a lib r a t io n T a b le s
d. C a p a c it y P la n
e. L o a d lin e d o c u m e n t / c e r t if ic a t e
f. T a n k S o u n d in g T a b le s
g. R e c o r d s o f s h ip c o n s t a n t
D o k u m e n - d o k u m e n y a n g d ip e r lu k a n u n tu k m e n g e t a h u i k e te lit ia n d r a u g h t s u r v e y a d a la h s e b a g a i
b e r ik u t:
a. T a n d a D r a u g h t d a r i lu n a s k a p a l
b. K e n a ik a n t a n d a d r a u g h t s a m p a i d e n g a n L P P / 1 0 0 , t r im b u r it a n L P P / 2 0
c. T a n k S o u n d in g y a n g s e m p u r n a
d. P e n g e s a h a n d a r i lig h t w e ig h t
e. S h ip 's P a r t ic u la r s e p e r t i t e r s e b u t d ia t a s
f. J a r a k t a n d a d r a u g h t d e n g a n p e r p e n d ic u la r
g. J a r a k a n t a r a t a n d a d r a u g h t d e p a n d a n t a n d a d r a u g h t b u r it a n
h. D is p la c e m e n t T a b le d ik o r e k s i d e n g a n t r im u n t u k f r e s h w a t e r
i. T a b le d a r i s o u n d in g t a n g k i d a n d is e r t a i d e n g a n v o lu m e n y a
j. T a b le d a r i k o r e k s i t r im d e n g a n n ila i s e t ia p d e c im e t e r s o u n d in g d a n s e t ia p 0 ,5 m e t e r s a m p a i
d e n g a n 1 .0 0 m e t e r d a r i t r im
k. R a n g e d a r i T a b e l k a lib r a s i d e n g a n t r im d e p a n L P P / 1 0 0 , t r im b u r it a n L P P / 2 0
l. K e t e r a n g a n d a r i g a m b a r : s e t ia p t a n k i, t a n k i b a lla s t , p a lk a h , c o f f e r d a m .
R u m u s - r u m u s y a n g d ig u n a k a n u n t u k p e r h it u n g a n
M e an D f = ( Fp + Fs ) /2
M ean D a = ( Fap + Fas ) /2
M ean D m = ( Fm p + Fm s ) /2
T r im = D a - D f
F a k t o r C o r r e c t io n = T r im X D is t a n c e / L B M
M e a n fw d & A ft = ( D a + D f ) / 2
M e a n o f m e a n = ( m e a n f w d & A f t + M e a n M id s h ip C o r r ) / 2 52
M e a n o f m e a n c o r r e c t e d = ( m e a n o f m e a n + m e a n m id s h ip c o r r ) / 2
1 s t T r im C o r r e c t io n = ( T r im x L C F x T P C X 1 0 0 ) / L B P
2 n d T r im C o r r e c t io n = ( T r im ² x 5 0 x d m / d z ) / L B P
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
T r im C o r r e c t io n = F T C + S T C
L is t C o r r e c t io n = 6 ( c m / m ) x ( T P C 1 - T P C 2 ) ( t o n / c m ) x D 1 – D 2 ( m )
D e n s it y C o r r e c t io n = ( ( 1 ,0 2 5 – d e n s it y a c u a n )/ 1 ,0 2 5 ) x d is p t r im c o r r
D is p la c e m e n t C o r r e c t io n fo r t r im = D is p – t r im c o r r
D is p la c e m e n t C o r r e c t io n fo r lis t = D is p – lis t c o r r
D is p la c e m e n t C o r r e c t io n f o r d e n s it y = d is p c o r r t r im – d e n s it y c o r r e c t io n
N e t D is p la c e m e n t = D is p t r im & d e n s it y c o r r – d e d u c t e d w e ig h t .
C a t a t a n r u m u s c o r r e c t io n t r im d a n lis t m e n g g u n a k a n M e t r ic s y s t e m
53
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
M in e r a l B a tu b a r a 2 0 1 2
P e n u tu p
K e s im p u la n y a n g d i d a p a t a d a la h P T S u c c o f in d o S B U m in e r a l s e b a g a i p e r u s a h a a n y a n g b e r g e r a k d i
b id a n g ja s a m e m ilik i r u a n g lin g k u p a t a u r u a n g k e r ja n y a p a d a p e r t a m b a n g a n b a t u b a r a a d a la h s e b a g a i
b e r ik u t :
1 . U n t u k d i E x p lo r a s i t a h a p D r illin g e x p lo r a s i d a n p r o d u k s i s e b a g a i W it n e s s d a n p e n g u jia n
S a m p le s e r t a Q C .
2 . U n t u k d i E x p lo r a s i t a h a p p e n g e m b a n g a n s e p e r t i p e r lu a s a n a r e a k o n s e s i s e b a g a i S a m p le r
dan Q C.
3 . P a d a k e g ia t a n p e r t a m b a n g a n s e b a g a i D a ily Q u a lit y C o n t r o l P it t o P o r t d a n M e n g a w a s i
k e g ia t a n p r o d u k s i s e r t a ju m la h c a r g o p a d a b a r g e a t a u V e s s e l.
4 . Q u a lit y c o n t r o l b u k a n h a n y a p a d a p r o d u k t a p i m e lip u t i p e n g a w a s a n d a r i p e n g a m b ila n (
G e t t in g ) s a m p a i d e n g a n L o a d in g B a r g e / V e s s e l.
5 . S u r v e y o r p a d a s a a t s h ip m e n t .
D a r i k e s im p u la n d i a t a s d a p a t m e m b e r ik a n s u a t u g a m b a r a n je la s m e n g e n a i P T S u c o f in d o S B U
M in e r a l y a n g s e la m a in i d ik e n a l h a n y a s e b a g a i s u r v e y o r u n t u k P e n g a p a la n ( S h ip m e n t ) , P r e p a r a s i d a n
P e n g u jia n ( T e s t in g ) , t a p i ju g a s e b a g a i Q Q C ( Q u a lit y & Q u a n t it y C o n t r o l ) d i p e r t a m b a n g a n b a t u b a r a .
U n t u k t e k n is p e la k s a n a a n n y a t id a k d i c a n t u m k a n k a r e n a s u d a h a d a s t a n d a r p r o s e d u r d e n g a n
m e t o d e s t a n d a r d ( B a k u ) d a n L a n d a s a n n y a , k a r e n a in i s if a t n y a h a n y a s e b a g a i k a r y a t u lis b u k a n
s e b a g a i k e n d a li m u t u . P e n u lis p u n d is in i h a n y a s e b a g a i p r a k t is i b u k a n s e b a g a i k e n d a li m u t u n y a .
Ja k a r t a ,0 5 -0 2 -2 0 1 2
S u p e r in t e n d e n t Q C
B a g a s k a r a .R .S T
54
S u c o f in d o S B U M in e r a l | B a g a s k a r a .R
