Talc Grinding Systems by liaoqinmei


									Talc Grinding Systems
Applications and Properties
Talc is known as the softest mineral on earth. As a natural ore it is always found in
combination with other minerals such as dolomite, magnesite or very often chlorite.
Most talcs are white, lamellar, chemically inert, non-toxic, insoluble in water but with
an affinity for organic chemicals. The benefits of talc vary according to the application.
It acts as an anti-sticking agent, an anti-caking agent, a lubricant, a carrier, a thickener,
a re-enforcing filler and an adsorbent.
Talc is used as
  filler in paint, plastics, paper, rubber, adhesives, jointing compounds, stucco
  oil and grease absorber in paint, cosmetics and pharmaceuticals
  pitch control in pulp and paper

  dusting and mold release agent in rubber and pharmaceuticals
  anti-caking agent in fertilizers and animal feed
  insecticide carrier
  insulator in electrical applications
  fragrance retainer in body powders
  fire retardant in roofing products like tar paper, asphalt shingles and roll roofing
  lubricant in pharmaceuticals
  extender to improve hiding power and TiO2 efficiency in paint
  UVresistant component to replace TiO2
  reinforcing agent for higher stiffness and improved dimensional stability in
  polypropylene plastic
  flux enabling ceramic tile firing temperatures and cycles to be reduced

                                                                                                                                                PITCH CONTROL

NEA Benefits
Experience          since 1942 in talc grinding
                    today, more than 17 talc grinding systems
                    are in successful operation
Fineness         typical fineness for fine grinding is 1% > 32µm
                                                                                     Many thanks to Tinto for providing us with the pictures.

                    highest classifying performance with sharp top cuts
                                                                                                                                                ANTI AGING

                    by SDR Radial Classifier
                    five pendulums to achieve finest grinds in

                    Pendulum Roller Mill
Hard Running thin material bed in grinding zone causes hardest
             grinding operation leading to cracks and damages
             in pendulum mills of standard design
                 upper mill housing with vibration isolator
                 lower mill housing in one-piece cast design
                 mill foundation using spring dampers
                 rotor assembly in reinforced talc design
                 critical mill parts made of high quality steel
                                                                                                                              Measured with
                                                                                                                              laser diffraction

                                                                                                                                                                       Feed Material



                            Mill type               PM      03 O3      05 O3      08 U5      12 U5      16 U5                 20 U5                      30 U5              60 U5 *

                            Grinding ring DIA       mm       640        1066      1270       1460       1670                  2000                       2300                   2650

                            Air flow rate         m3/min     180        260        430        640        940       1200       1380         1570   1800       2340        2800      3500

                            Discharge rate
                            Hardness 45° HGI        t/h       1.6        2.3       3.9        05.8      08.4       10.8       12.4         14.1   16.2          21.0     25.2          31.5
                            Hardness 104° HGI       t/h       3.2        4.6       7.8        11.6      16.8       21.6       24.8         28.2   32.4          42.0     50.4          63.0

                           Mill Motor               kW        37         55         90        132        200        250        250         315    315            400      450          560

                           Discharge rates are valid for talc with fineness 1% > 32µm (dry sieve analysis) and feed moisture < 0.1% H2O.                                     * not validated
Werbestudio Rang 02-2008

                                        Werkstrasse        52531 Übach-Palenberg, Germany Phone: +49 24 51 - 481 - 02 Fax: +49 24 51 - 481 - 200
                                                             e-Mail: neagmbh@neuman-esser.de Website: www.neuman-esser.de

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