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As with most things in life, the basics remain the same although they may become more sophisticated, or complicated, dependent on one’s viewpoint.
Digital Re-print - January | February 2012 Bulk Storage & Handling Grain & Feed Milling Technology is published six times a year by Perendale Publishers Ltd of the United Kingdom. All data is published in good faith, based on information received, and while every care is taken to prevent inaccuracies, the publishers accept no liability for any errors or omissions or for the consequences of action taken on the basis of information published. ©Copyright 2010 Perendale Publishers Ltd. All rights reserved. No part of this publication may be reproduced in any form or by any means without prior permission of the copyright owner. Printed by Perendale Publishers Ltd. ISSN: 1466-3872 www.gfmt.co.uk NEXT PAGE FEATURE Bulk storage handling by Alf Croston, Managing Director Croston Engineering, UK CLASSIC STYLE CC-HD ® SUPER EUROBUCKET ™ A s with most things in life, the system, and discharging into a screw or chain procedure should be in place to shut down I The most specified style in I Direct interchange and replace- basics remain the same type conveyor which may, if wished, be fitted when not in use. North America. ment of existing pressed steel although they may become with a variable speed drive so that the intake A rotary drum pre-cleaner located at the buckets. more sophisticated, or complicated, rate may be varied to suit the characteristics top of the Mill to remove foreign matter I Straight sides provide direct dependent on one’s viewpoint. of the particular material being dealt with in prior to the material being conveyed to raw and compact discharge pattern. I Safer – Nonmetallic materials order to prevent overloading subsequent material bins will protect subsequent equip- I Designed to discharge over the eliminate possible sparking from And so it is with this overview covering equipment. ment from being damaged. bent and torn steel buckets. the bulk storage and handling of materials in The conveyor should be fitted with rota- The conveyors feeding silos and bins widest range of speeds and the animal feed and human food industries, tion control and overfeed detection. will have multiple outlets and the electri- pulley diameters. I Equal or greater carrying from the intake of raw materials through to The intake bucket elevator, as with all cal control system must be designed so I Easily modified to the low profile capacities of steel buckets. the discharge of finished products. similar units in the mill, must incorporate that only one slide is open at a time in It is barely 60 years since a very high explosion relief panels at prescribed intervals, order to prevent the propagation of an configuration for high throughput I Thick walls provide superior proportion of the milling industry was located electrically linked to shut down the plant in explosion from one bin to another. As elevators. impact strength and long life. at the major ports with raw materials in sacks the event of an explosion occurring. with the intake conveyor, all conveyors being transported from the docks by horse and Because of their inherent design, bucket should incorporate overfeed detection I All sizes available in polyethylene, I Popular sizes in stock for cart and then hoisted up to the various floor elevators have a built-in explosion risk and rotation sensing. nylon and urethane. immediate shipment. levels for storage there to be cut and tipped factor and, if located within a building, To cater for dust laden air displacement into process bins as and when required. the explosion panels should be ducted to at transfer points, small dust units with built- Gradually, as more home grown grain atmosphere. Elevators should also incor- in exhaust fans at convenient locations will became available, together with the advent of porate tensioning gear at the boot, anti- ensure a clean atmosphere. purpose-built bulk vehicles and an improved runback device to cater for a choke or road network, there was a move to country Storing different materials mills more conveniently located to service The number, location and holding capac- the farming community by buying grain ity of new material bins is determined by locally, processing it into feed and selling the site conditions and the particular require- resultant product back to the farmer. ments of individual clients, bearing in mind The use of computers and automation the large number of different materials to throughout the milling process has reduced be handled and stored in the feed industry. Serving the World by Design what was a labour intensive industry to one Ranging from free flowing grains to a variety controlled by a few technically proficient of meals and moisture content, the bins and operators, but to whom the basics of mate- discharge equipment should be designed to rial handling must still apply, as do health and cater for those with the worst flow char- Now available, only from Tapco, For North American style Whatever you want, wherever you In stock worldwide, and ready safety requirements, adherence to DSEAR/ acteristics to ensure maximum flexibility so the two most popular bucket elevators: the classic CC-HD need it, there’s a Tapco bucket. to ship. Contact us today for ATEX Explosion Regulations, plus health and that individual bins can be used for the stor- designs in the world! These design. For European style information on getting the hygiene control. Hence this résumé. age of any ingredients should the need arise. 900,000 buckets in 93 sizes incredible buckets will fit your elevators: the Super 15 million bolts, 6 styles most from your elevator. Or Level probes are required to prevent Interruptions in production overfilling, as are policed explosion panels. elevator no matter where in the EuroBucket. Fasteners, liners & accessories visit www.tapcoinc.com and The interconnection of process plant Provision will be required for minerals world you operate your facility. tap into a world of experience. is designed to be fail-safe and so prevent and other ingredients that are delivered chokes and interruption to production. power failure, rotation sensor to indicate by bulk tanker and pneumatically conveyed Intake capacity from bulk tankers has if the belt is slipping and side alignment to dedicated bins utilising either a blower ELEVATOR BUCKETS - ELEVATOR BOLTS greatly increased over the years and is indication. mounted on the tanker chassis or, in some St. Louis, Missouri U.S.A. normally well in excess of 100 tonnes/hour Intake points are frequently out of sight cases, by coupling up from a land-based www.tapcoinc.com via an intake hopper with safety grid located of the control room so, to avoid being blower. To prevent static electricity causing under cover plus an efficient dust extraction allowed to run empty for long periods, and a a spark, the tanker will be connected to an Tel.: +1 314 739 9191 • +1 800 AT TAPCO (+1 800 288 2726) • Fax: +1 314 739 5880 • Email: firstname.lastname@example.org The color blue, when used in connection with elevator buckets, is a U.S. registered trademark owned by Tapco Inc. Super EuroBucket ™ is a registered trademark of Tapco Inc. © 2012 Tapco Inc.® All rights reserved. 12 | January - february 2012 Grain &feed millinG technoloGy FEATURE FEATURE earthing point prior to starting remit covering bulk complies or can be economically altered to the discharge process. Care is handling it is a matter comply. needed to ensure that the tank- that requires attention Good housekeeping, regular inspection er only couples up to the correct whether it is for con- and maintenance, plus an awareness of intake line feeding the designat- ditioning of mashes for potentially hazardous processes or areas, are ed bin and that intake lines are direct sales or for pel- a requisite for trouble free operation. The of correct diameter, earthed and leting. The three essen- Directives combine these aspirations into routed with minimum horizontal tials being moisture, requirements and apply not only to the sup- length and number of bends in temperature and time, pliers of equipment but, in particular, to the order to reduce the pressure whilst bearing in mind users themselves. needed to carry out the convey- the heat sensitivity of ing operation. some ingredients. For Dust classification As referred to earlier, the configuration pelleting, correct conditioning is necessary to It is the obligation of the user to sat- of hopper design and type of discharge is ensure starch gelatinisation and pellet quality. isfy himself as to the class or classes of the all-important in ensuring the free flow of An efficient cooling system is essential materials to be handled and to provide this materials from the bins to the blending prior to finished products being conveyed to information to the designer or manufacturer operation. For accuracy this will include one packing or bulk out loading bins, the latter of equipment. or more main weigh hoppers, a small weigh discharging either directly to bulk vehicle or These are defined under four Kst classifi- hopper for minerals, and a smaller one for via a travelling weigher. cations (K staube = Class of dust), and relate micro ingredients. Most of the materials processed in the to rate of pressure rise. animal feed, pet and fish food, North America grain, flour, bakery, sugar, Kst. 0 = Non-explosive starch and fertiliser industries Kst. 1 = Weak to moderate are subject to the DSEAR/ Kst. 2 = Strong ATEX Explosion Regulations Kst. 3 = Very strong that came into operation on July 1, 2003. There are many misconceptions and confusion Most materials used in feed mills are as to the requirements of the covered under Kst. 1 but there are a few to Directives. It is timely to reiter- which Kst. 2 could apply. ate the general principles relat- Asia Europe ing to the regulations, particu- Zoning larly for those who have only In addition to dust classification, the recently become involved in user is required to carry out a survey and one or other of the industries to designate plant and buildings into zones in which potentially explosive which will be appropriately signed at points The blended batch is fed to the grinding plant preceded by a screen to allow meals materials are handled. of entry. Zones 20, 21 and 22 are the most likely to apply to feed milling and associated Silo Construction & Engineering and minerals to bypass the grinder before The Directives industries. Modular square bins re-joining the ground materials and passing The Directives apply from July 1, 2003, Zone 20 covers an area in which an explo- to a three tier mixing assembly consisting of to all new equipment and any existing that sive atmosphere consisting of combustible pre-mix bin, mixer and dump bin. Molasses is modified or relocated after this date. This dust in air is present frequently for long and fats are added at the mixer. has particular relevance in ensuring that, if periods or continuously. Although heat treatment is outside this purchasing any second-hand equipment, it Zone 21 is where an explosive atmosphere Our grain storage systems come with six continents Since 1855 store, handle and clean your grain of experience. to grow your harvest value Westeel offers a full line of professionally engineered grain storage products and systems for international sale – all backed by Westeel’s superior service and product support. FRANCE Commercial Grain Storage Bins (up to 674,000 bushels/18,343 tonnes) On-Farm Grain Storage Bins (starting from www.denis.fr SCE 2,390 bushels/65 tonnes) Aeration Systems Bin Unload and Grain Handling Systems Systems Engineering and Design SCE is a partner with the international P.O. Box 792, 450 Desautels Street Winnipeg, feed & food industries • Manitoba, Canada R3C 2N5 Tel: (204) 233-7133 Bin Sweep consultancy & engineering firms • machine & plant designers • Fax: (204) 235-0796 email@example.com Zero Entry westeel.com www.sce.be firstname.lastname@example.org Management Systems Registered to ISO 9001:2008. MF21589-0112 14 | January - february 2012 Grain &feed millinG technoloGy &feed millinG technoloGy Grain 21589 Westeel International 2012 G&FMT.indd 1 January - february 2012 | 15 5:03:02 PM 1/11/12 Westeel: International 2012 Publication Grain & Feed Milling Techniques: 90 mm x 270 mm" FEATURE is likely to occur occasionally in normal Very often a primary explosion in itself the following may be found helpful as an “aide operation. is not dangerous but the vibration it sets memoire” towards good housekeeping; Zone 22 is where an explosive atmosphere up disturbs any dust lying on floors, beams, • Enforce a strict no-smoking rule, on pain would not normally occur but, if it does, it rafters, into the atmosphere. If a source of of dismissal. would only be for a short period. ignition is present it can result in a secondary • Ensure that all electrical equipment, Obviously it is the duty of manage- and devastating explosion. So, cleanliness cabling and control panels conform to ment to ensure that standards of operation throughout the plant is of first priority with relevant standards and regulations, and and cleanliness are maintained to meet the particular attention being paid to “out of are kept free of dust. requirements of Zone 22 as far as is practical. sight” areas and cleaning up spillages imme- • Use only totally enclosed, fan-cooled In carrying out risk assessments it is diately – using one of a variety of vacuum motors, ensuring they are adequately natural to concentrate on major processing cleaning systems available. Brushing up is earthed. equipment such as silos, grinders, elevators, definitely out – it only disperses the dust • Ensure light fittings are dust-proof. dust collectors, etc., and to overlook the elsewhere. • Test cables and wiring regularly. myriad range of smaller ancillary items that Despite taking all precautions that one • Locate switchgear and process control also need to be checked. Typical items can think of, it is sod’s law that incidents still panels in dust-free rooms under light include lighting, electrical fittings, motors, take place – thankfully not too often in view negative pressure. level indicators, solenoid valves, control of increased awareness of the dangers that • Inspect liquid lines regularly for leaks. panels. In fact, anything that can generate are always present. Ensure that insulation, if used, has not a spark. become impregnated, as this could be It is well known that three elements are Examples ignited by electrical trace heating. required to cause an explosion – dust in Three examples illustrate the variety of • Bund walls around main storage tanks suspension at a critical level, oxygen, and a incidents that can happen. should be sized to suit. spark or hot surface. The first two are always The first resulted from smoulder- • Check that bearings, particularly those there, so it is against the third item that every ing material entering a bin, setting off fitted to elevators and grinders, are not precaution must be taken, including satisfac- a primary explosion which ruptured the over-heating. tory earthing throughout the plant. explosion panel as it was designed to do. • Detect belt slip and misalignment on Bear in mind that dust in suspension Unfortunately the escaping gases caused a elevators – a major source of fires – by appearing as a light fog provides the condi- secondary explosion which devastated the rotation and side alignment sensing, and tion in which a spark can cause an explosion. top floor of the building. As it was impracti- anti-run-back protection. The finer the dust particles the greater the cal to vent every bin to atmosphere it was • Check for possible temperature rise in danger because of the increased surface area subsequently agreed with HSE that the top stored bulk materials, which could result exposed to atmosphere. floor over the bins would in future be a “no in spontaneous combustion. The duties of the user having been go” area whilst the plant was in production • Inspect bin interiors using only battery- described in general terms, what about the and for ten minutes afterwards. A lockable operated, non-glass, flameproof supplier of the equipment? Firstly, he has to gate was fitted to the access stairs and a inspection lamps, which are suitably satisfy himself that the user has provided him warning notice affixed. secured and never allowed to be in with all the necessary details concerning clas- The second resulted from a hot spot due contact with the product. (In the past sifications of materials to be processed and to a malfunction in the motor of a dust unit it was not unusual for naked electric the areas in which equipment is to be located, fitted on top of a grinder expansion hop- bulbs to be lowered into bins – at best Heat Recovery Dryer 30% together with any other relevant information. per. The explosion panel ruptured but had protected with a wire guard). The supplier then has to ensure that the not been vented to atmosphere through a • Ensure hot work is carried out only on equipment he supplies is designed, manufac- nearby wall. isolated, cleaned-out plant, against Work tured and installed to satisfy requirements Unfortunately, two employees were Permit issued by management, and by taking all precautions to prevent an standing nearby at the time and were badly provision of fire blankets, extinguishers, etc. explosion but also, and most importantly, to burned. It was interesting to note that a Many fires have occurred during periods mitigate against an explosion should such an choke had been fitted to the bin discharger of repair, renovation or plant modification Up to event occur. beneath the expansion hopper and pre- (as in the case of Windsor Castle a few Equipment can be manufactured in such heavy construction that an explosion would be contained but this is so expensive as to be vented the explosive gases passing into a subsequent elevator and storage bins, otherwise the result would have been even years ago). During these special periods, in addition to taking fire precautions, it is advis- able to inspect the area closely for at least an Energy Savings impractical. The alternative is to fit a certi- more serious. hour at the end of each working day. With our Heat Recovery Dryer you get the fied explosion panel vented to atmosphere The third was caused by welding being Adherence to these principles will ensure lowest energy consumption on the market. through a nearby wall or roof. carried out on the side of a silo, one of not only a pleasant environment in which to Due to the location of plant within a build- several such accidents over the years, in work but also one that is as intrinsically safe TORNUM Grain Coolers – The eco-friendly ing venting may not be practical and so the which the operator was injured. In this as possible. way of preserving grain quality. fitting of expensive flame quenching or explo- case it was not the result of negligence. sion suppression equipment may be required. The silo had been isolated from its feeding To prevent the propagation of an explo- conveyor, cleaned down internally and the sion, items of equipment should be isolated subject of a work permit. Unfortunately, About the author: from each other. An example being to incor- a small amount of material had remained Mr Alf Croston is managing director porate valves or slides so that only one bin in an inaccessible spot and on being of Croston Engineering, at Tarvin, near can be filled and exhausted at a time. Bin disturbed created the conditions for an Chester, which was founded in 1976. dischargers and screw conveyors can be explosion to take place. His company specialises in the design designed with chokes incorporated. The foregoing describes in broad outline and building of bulk storage, handling The installation of a rubble separator on the rationale behind the ATEX Directives. and process plants throughout the UK the intake system and magnets at appropri- Many of the requirements are common sense, and Ireland for many household names TORNUM AB Box 100, SE-535 22 Kvänum, SwEdEn ate points throughout the plant are obvious but common sense has to be backed up with in industry. Phone +46 (0)512–291 00 E-mail: email@example.com precautions. documentation in this day and age. However, www.tornum.com 16 | January - february 2012 Grain &feed millinG technoloGy &feed millinG technoloGy Grain January - february 2012 | 17 News ewspetfood ingredient processors N512031Grain_Feed_190x58gb_4c:Dammann Services 23.12.2011 15:34 Uhr Seite 1 January - February 2012 NEWS January - February 2012 NEWS A t A F I A’s Pe t F o od from third-party food safety program to help ‘raise the bar’ certification program, Safe Conference in Atlanta, experts. for their own industry.” Feed / S afe Food progr am, Efficiency, productivity and safety increase through Ga, AFIA announced These two programs build The PFMF and PFIF certification addressing the needs of the a new third-par t y facilit y upon AFIA’s domestic Safe programs were designed to feed industry. And then in 2010 the use of automation systems designed Feed/Safe bulk goods handling, dust-extraction and exceed the International Safe Feed / certification program ... Follow the leader inFood program and meet and in some partsventilation plants specifically for manufacturing are designed to monitor the the requirements of Design The QUICK CONNECT pull-ring makes the acclaimed Original Quality to a Modular ® the Food Safe Food program ewas! addedRequ ogue st a al companies - As many as 215 automation companies to exhibit at IPACK-IMA p e t f o o d a n d p e tJacobomodular pipe systemcontrolseconomical • Straight afet y lipped-end pipes and components. to provide a toolcat tline or at ingredients. f o d process even more specifically S welded, Modernisation Act for installation. In new plants manufacturing•of 60 mm to ø 800 mm in a standard range. related to the for animal feed, ø regulations. for Ho 5580 that wish to +meet-p9ipthems.eu )571 49 (0 cob es yste EU w.ja pet food. AFIA is seeking FDA recognition requirements. ww pharmaceuticals, chemicals, food, glass, semi- • Larger diameters / special requirements upon request. AFIA’s petfood and quality “AFIA sees this as a model of these programs and is “ N ow t o d ay,Jacob Söhne iGmbH & Co.h e ad d n g t KG T conductors or environmental technology as • Larger than ø 350 mm also available with flange connection. Fr. committees developed the as for upgrading existingentire user- • Powder coated steel or hot-dipped galvanised steel as well h at Food Facility +49 PAC K- he exhibition features program for the well layouts petfood encouraged by FDA tr use Petstainless s c h o se n program organized that majormay ade t as ha steel. Phone I Germany (0)571 95580 Pe t F o o d M a n u meetings industry,” according to Joel 1 associations. technologicalf a c t u r i n gfriendly system installation becomes precise •G - 3 mm wall thicknesses. these programs in their risk to the family of venue to thethird-party IMA 2012 as www.jacob-pipesystems.eu assessment h pipesF industry for meet the specialist public is ( t of and components n certification program makes Facility Certification Program andNewman, the great versatility of and A N I E certified e the e d e r a t i oavailable. and seminars promoted easy due to AFIA’s president • Shock-explosion by the industry’s representative mass-produced pipe components. (PFMFCP) and the Pet Food CEO. sense not (Italian Automation representingdispatched electro -fromANIPLA only for our members, ø 400 mm normally the • Up to inspection priorities. immediately stock. a n d e l e c t ro the but for the petfood meeting trade associations Certification “ I commend the pet food t e c h n i c a lAFIA launched n i c Association) with aindustry,” Ingredient Facility “In 2004 EUROPE’S NO. 1 IN MODULAR PIPEWORK SYSTEMShold a – Used in all industrial sectors Program (PFIFCP) with input committee for developing this companies in Italy) will facility focused Newman. first third-party feed says Mr on next-generation Technologies for packaging, seminar intended for all industry t e c h n o l o g y t o i m p r o v e proce ssing and indust ri al p r o f e s s i o n a l s , d e s i g n e r s , efficiency and productivity VIBRAFLOOR AUTOMATIC RECLAIMER logistics, the three pillars of IPACK-IMA 2012, all have a manufacturers and assemblers ( sc h e d u l e d fo r T h u r sd ay titled “Electrical Cabinet for March 1st): “Automation in the high degree of automation as Human Interfaces Machines: Packaging: from innovation to Vibrator under Proofing their common characteristic. the interest of the vast majority design, application and energy Efficiency”. T TYPICAL VIBRATING MODULE dustproof cover he reclaiming of bulk products from membrane The upcoming edition of the of professionals visiting the efficiency”. The meetings (on L a s t l y, t h e o b j e c t i ve o f silos, bulk carriers, railroad cars, exhibition on schedule from event. schedule for Friday March increasingly comprehensive, Steel plate Steel hoppers, etc … is made easy by frame February 28th to March 3rd at The increase in eff iciency, 2nd) will discuss requirements w i d e l y a c c e p t e d g l o b a l Vibrafloor, says the company. Fiera Milano will host over 200 p r o d u c t i v i t y a n d s a f e t y and features of in-field control standards will be discussed Adjustable length exhibitors active in the industry s t a n d a rd s f o r m a c h i n e r y panels and will provide an during a specific meeting on “This proven technology is ideally suited of automation systems and and equipment is largely the outline of the main national and Friday March 2nd organized by for either new-build or retrofitted storage components. 215 companies result of innovations brought international regulations, the PLCopen, a global association structures,” it adds. representing a sector capable about by manufacturers of materials employed according of manufacturers and vendors 50mm Vibrafloor performs the recovery and thickness of creating strong synergies au t om at ion sys te m s . The to different uses as well as of automation systems aiming clean-up of residual piles on slightly with the ten exhibition areas latest advances showcased specific applications and the at becoming global leader in inclined floors, typically 8 to 12°. Most 2210mm width and nine business communities at IPACK- IMA go hand in legislation connected to them. the regulation of automation commodities can be efficiently handled, of IPACK-IMA, thus attracting hand with technical meetings Another prestigious association control systems. such as cereals, meals, sugar, flour, fish feed, cotton seed, sulphur prills, wood • Extreme simplicity, no heavy machinery • No degradation of the product Grain &feed millinG technoloGy January - february 2012 | 7 chips, wood pellets, saw dust, ores and • Total clean-up when required • Negligible operating cost aggregate. • No personnel required inside the Look for Vibrafloor is made of independent vibrating storage, not even for final clean-up The Vibrafloor Company can mastermind the NIR &feed millinG technoloGy solution GFMT12.01.indd 7 02/02/2012 10:12 modules, customised to suit the shape and • No maintenance the bulk reclaiming process of any Grain INFRANeO January - february 2012 | 27 dimensions of the storage. Modules are • Very low power intake storage structures from beginning to end. JUNIOR laid side-by-side and end-to-end to cover • No dust generated by the reclaiming process From the design, plant manufacturing, that best matches your needs a given area. • Complete automation site installation and commissioning, its GFMT12.01.indd 27 02/02/2012 10:13 Modules are typically 2.2m wide, 3m to 4m • Very high reclaim rates achievable engineers and technicians will provide y Measure chemical composition as soon as you long and 50mm thick. They can also be of • Totally safe for the structure and the their unique expertise, within schedule trapezoidal shapes into a conical design. A personnel and budget. receive your raw materials. three-phase electric y Estimate technical values of flours, semolinas, grits, glutens, vibrator of 700W starches (and other powders products). unit power powers y Moisture, protein, ash content, zeleny, hydration*. each module. silos ships (* choose from over 60 calibrations available) Lower modules INFRANeO Junior can also analyse whole grains. are triggered first, THE UTMOST to destabilize and BULK RECLAIMER carry residual piles into a central wITh conveying system SIMPLe NO OPeRATOR COST SAvINg or a central INFLUeNCe h o p p e r. T h e n simple, maintenance free, automatic, efficient on most bulk products*, unbeatable reclaim rates upwards rows or * cereals, oil seeds, sugar, flour, soya bean meal, wood pellets, wood chips, fly ash, cement, sulphur, charcoal, RDF etc… circles of modules are triggered VIBRAFLOOR F-71680 Givry +33(0)385 440 678 +33(0)680 964 144 firstname.lastname@example.org successively from wagons domes containers bottom to top, FAST ACCURATe until complete clean up of the storage is completed. Advantages for 20, avenue Marcellin Berthelot • 92396 Villeneuve-la-Garenne • FRANCE operators include: Tél. : + 33 1 41 47 50 29 • Fax : + 33 1 41 21 07 10 • Mail : email@example.com • www.chopin.fr Photo credits : www.istockphoto.fr-© Elena Elisseeva-© Kristian Septimius Krogh-© Srdjan Stefanovic-© Dr. Heinz Linke-© Stratesigns, Inc.-© Kaupo Kikkas. infraneo_junior_GB_190x132mm.indd 1 24/02/2011 14:24:49 Grain &feed millinG technoloGy January - february 2012 | 9 Grain &feed millinG technoloGy January - february 2012 | 11 This digital Re-print is part of the January | February 2012 edition of Grain & Feed Milling Technology magazine. Content from the magazine is available to view free-of-charge, both as a full online magazine on our website, and as an archive of individual features on the docstoc website. LINKS Please click here to view our other publications on www.docstoc.com. January - February 2012 • See the full issue • Bulk storage & handling • Visit the GFMT website In this issue: • • Contact the GFMT Team • Efficiency Increasing Energy saving in flour milling storage capacity • Digital microwave moisture measurement • Preservatives • • Subscribe to GFMT Global grain & Preservatives are a recurring feed markets topic in public discussions A subscription magazine for the global flour & feed milling industries - first published in 1891 GFMT12.01.indd 1 02/02/2012 10:12 To purchase a paper copy of the magazine, or to subscribe to the paper edition please contact our Circulation and Subscriptions Manager on the link adove. INFORMATION FOR ADVERTISERS - CLICK HERE Article reprints All Grain & Feed Milling Tecchnology feature articles can be re-printed as a 4 or 8 page booklets (these have been used as point of sale materials, promotional materials for shows and exhibitions etc). 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