Grain Slag Vertical mill introduction:
1) High capacity
2) Low consumption
3) Finished fineness adjustable
At present, grain slag vertical mill takes up absolute advantage in the powder pulverizing of grain slag and it has become the preferred device of grain slag powder production line. Grain slag vertical mill sets drying, crushing, Grinding, separator, collection and transport together. It has been the first to achieve large-scale production. The floor area is smaller; the unit current drain of pulverizing and metal abrasion is lower. The system powder consumption is between 18.5KWH/T and 132KWH/T. The product's surface area is generally 420 m2/kg to 450 m2/kg, but generally it is lower than 500 m2/kg otherwise it may increase the wear and vibration of mill stone and Grinding roller.
The Application of Grain Slag Vertical mills:
HGM series Grain Slag Vertical mills mainly applied to non-inflammable, non-explosive and brittle materials with Mohs’ hardness under six. Such as calcite, chalk, limestone, dolomite, kaolin, gypsum, etc, totally more than 100 kinds of materials. Product fineness can be controlled between 325~3000 meshes.
Performance and features Of Grain Slag Vertical mills:
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=<5um.
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.
Production Line Configuration of Grain Slag Vertical mills:
The whole set HGM Grain Slag Vertical mills consists of hammer crusher, bucket elevator, storage hopper, vibrating feeder, main unit, inverter classifier, cyclone collector, pulse deduster system, high pressure positive blower, air compressors and electrical control systems.
Working Principle of Grain Slag Vertical mills:
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 materials 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 Grain Slag Vertical mills:

Model	HGM80	HGM90	HGM100	HGM100A	HGM125
Ring Diameter(mm)	800	930	1035		1300
Ring Number(PCS)	3	3～4	3	4	4
Roller Number(PCS)	21	24～32	27	34～36	40～44
Main Shaft Speed(r.p.m.)	230～240	200～220	180～200		135～155
Input Size(mm)	≤20
Finished Size/um(mesh)	5-47(325~2500)
Capacity (t/h)	0.5-4.5	0.6-6.5	0.7-7	1-8.5	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		14*9*10.25
Motor Power(KW)	145-165	185-204	263	263-290	380-430

Note: This specification is just referencing, any changes are subject to the products.
Should you have any questions, please do not hesitate to contact us:
Contact person: Cherry. Zhao
Tel: 0086-21-20236178
E-mail: clirik_grinder@163.com;cherry201201@hotmail.com
Address: No.19 Fuqing Road, Pudong New Area, Shanghai 201201, China.
Homepage: http://www.vertical-mill.net