Grinding Mill

Vertical roller mill for illite powder making

From:www.vertical-mill.net    Date:2013-04-11 10:56


>>The brief introduction about illite and illite powder:
Illite is a non-expanding, clay-sized, mica mineral, and it is a phyllosilicate or layered alumino-silicate. Illite is also called hydromica or hydromuscovite. Structurally illite is quite similar to muscovite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium. Pure illite clay is white, butbecause it contains impurities, which was dyed yellow, green, brown and other colors. Underside cleaves completely. Mohs’ hardness is 1~2. Specific gravity is 2.6~2.9.
Illite has potassium-rich, high aluminum, low iron and smooth, bright, delicate, heat resistance etc. superior chemical and physical properties. Illite clays can serve as novel ceramic raw materials, fluxes of heat resistant cylinders and cosmetic or plastic packing. Besides, it can be adsorption of cesium in nuclear waste processing to exert radiation effects. Pure white illite can replace kaolin as paper coating, as well as for the production of car shell sprayed materials, welding electrodes, and so on.
Illite has wide industrial use, can be used to produce potash, advanced coatings, fillers, ceramic parts, advanced cosmetics, soil conditioning agent skeleton ingredients, high-rise building, poultry feed additive and cement batching, nuclear industrial purification of pollution and environmental protection. Trace element can be made of the outer coating of space shuttle. Especially in three industries of paper making, cosmetics, ceramic, illite has a great value.
Illite has wide range of uses in industry, illite powder can be used to produce potash, advanced coating and filler, ceramic accessories, cosmetics, soil conditioning agent, poultry feed additives, skyscraper skeleton to and cement batching. Trace elements can make the outer coating of the space shuttle. In particular, illite has big value in the three industries of paper, cosmetics, and ceramics.
>>Introduce of Illite vertical roller mill:
Illite grinding mill finished product fineness: 325 mesh ~ 3000mesh.
>>Application of Illite vertical roller mill:
Illite vertical roller mill is mainly applied to non-inflammable, non-explosive and brittle materials with Mohs’ hardness under seven, such as calcite, chalk, limestone, dolomite, carbon black, bentonite, kaolin, talc, mica, magnesite, illite,pyrophyllite, roseite, sea-foam, attapulgite , rectorite, diatomite, barite, gypsum, alunite, graphite, fluorite,  rock phosphate, kalium ore, pumice etc. totally more than 100 kinds of materials.
Finished powder products are in the 325meshs -3000meshs, and yield can be up to 0.7-7.5 tons per hour. There are four types of Shanghai CLIRIK HGM series vertical roller mill; they are HGM80, HGM90, HGM100, HGM100A and HGM125.
>>Device of Illite vertical roller mill:
Illite vertical roller mill mainly consist of hammer crusher , micro powder main unit, Frequency conversion classifier, powder collector, pulse dust cleaner, high pressure positive blower, air compressor, muffler, electrical apparatus control system, sound-proof room, crusher, bucket elevator, storage hopper, and vibrating feeder.
>>Features of illite vertical roller mill:                          
1.   High efficiency
Under the same final size and power, the product capacity of ultrafine mill is twice than jet mill and agitation mill.
2.    Longer lifetime of spare parts
The roller and ring are made of special material, which improve the grinding efficiency a lot. For same material and final size, the lifetime of its wearing parts can reach to more than one year, about 2-5 times as long as that of vertical shaft impact crusher and turbo-mill. Especially when handling calcium carbonate and calcite, the lifetime can reach 2-5 years.
3.    High safety and reliability:
There are no rolling bearings and bolts in grinding cavity, so problems caused by bolts shedding or wear of bearings and seal components will never happen.
4.    High fineness of products
The product fineness can reach D97≤5μm.
5.    Environment friendly
The application of pulse dust collector and muffler reduce the pollution and noise of the dust, which has reached national environment protection standard.
>>Working principle of illite vertical roller mill:
The main bearing and each dial are driven by electromotor of main machine through reducer, and numbers of rollers, which are rolling in the ring, are driven by dial through plunger. After crushed by hammer crusher, the big materials become small ones and are sent to storage hopper by elevator and further sent to the middle of first dial evenly by the electromagnetic vibrating feeder and feeding pipe. The materials will be driven to the edge of dial by centrifugal force and fall down into the ring, crushed and grinded by roller, and become powder after production of three rings. The high pressure centrifugal blower will inhale air from outside and blow the crushed materials to classifier. The rotating turbo in the powder concentrator will make the coarse material return to the mill and reground, while the fineness will mix with the air and go into the cyclone and be discharged in the discharge bin, which is at the bottom of it. The air, which mixed with very little fineness, will be purified by impulse duster and discharged by blower and muffler.
>>Technical data of illite vertical roller mill:
Model HGM80 HGM90 HGM100 HGM100A HGM125
Ring Diameter(mm) 800 900 1000 1000 1250
Ring Number/pcs 3 3-4 3-4 4 4
Roller Number/pcs 21 24-32 27-36 27-36 40-44
Main Shaft Speed/r. p. min 230-240 200-220 180-200 180-200 135-155
Input Size/mm ≦20
Finished Size/um 5-43(325-3000)
Capacity t/h 0.4-4.5 0.4-5.5 0.4-6.5 0.4-7.5 1.5-12
Outlet Size L*W*H/m 13.9*4*6.2 14.7*4.8*7.2 18*4.6*8.6 18*4.6*8.6 14*9*10.25
Note: This specification is just referencing, any changes are subject to the products.

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