Coal gangue is accompanied closely with the coal, non-metallic mineral resources. The material is brittle hardness is relatively not high, it is easy to achieve with a crusher, mill machine grinding process simple and smooth, is very suitable for the investment and management of the resource-rich regions of production projects.
After Calcined and ultrafine grinded through the mill machine, originally disposal coal gangue will be able to achieve the requirements of industrial grade paper, paint, and other fields, turning waste into treasure. Pulverized by Vertical roller mill, coal gangue also can be used for making cement, building ceramic, the power plastic additives, fire retardant paint, such as the production of compound fertilizers, a wide range of uses.
>>Coal gangue Vertical roller mill plant:
Clirik has the best coal gangue Vertical roller mill plant. Under the same finished final size and the same motor power, the capacity of Vertical roller mill is twice as much as jet mill, mixing grinder and ball mill. And the application of pulse deduster and muffler greatly alleviates dust pollution and noise. If you want to reduce the cost of production you can choose our coal gangue Vertical roller mill.
Raw coal gangue first enters jaw crusher to be crushed to smaller size. They are lift to storage room by elevator. Vibrating feeder will feed materials into grinding chamber evenly and gradually. After being grinded, the quartz powder will be blow to cyclone by blower. Then the coal gangue powder will be transferred to storage room through pipes, and then will be discharged as final products.
>>The Application of coal gangue Vertical roller mill
HGM series coal gangue ultrafine powder grinding mill is mainly applied to non-inflammable, non-explosive and brittle materials with Moh’s hardness under six. Such as calcite, chalk, gravel, coal gangue, kaolin, gypsum, etc, totally more than 100 kinds of materials. Product fineness can be controlled between 325~2500 mesh.
>>Working Principle of coal gangue 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 powder 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.
>>Performance and features of coal gangue 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=<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.
>>Technical Data of coal gangue Vertical roller mill

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