Vertical Roller Mill for Coal

Application	Cement Plant, Thermal Power Plant, Steel Mill
Capacity	5-70 t/h
Motor Power	110-1400 kw
Fineness	80μmR 3%

Overview

Vertical coal mill is typically designed to process materials in medium hardness, like soft coal or bituminous coal, and it is mainly used in positive pressure pulverizing system of soft coal. It is widely used in thermal power plant, metallurgy sector, building material industry, chemical industry, etc. The coal pulverizer is an ideal device that integrates crushing, drying, grinding, and grading conveying all together.

Features
1. Environmental Friendliness
With small vibration, low noise, and the overall sealing, the system works under negative pressure, so there is no dust going out. (It meets the requirements of the state environmental protection.)

2. High Drying Ability
As the hot air inside contacts directly with the material, drying ability is higher, and it saves energy. By regulating the air temperature, the vertical roller mill can meet requirements with different humidity.

3. Simple and Reliable Operation
Firstly, it is equipped with automatic control systems, so remote control makes it easy to operate. Second, it is equipped with one device, which prevents the roller from contacting with the liner directly, and avoids the destructive impact and severe vibration.

Vertical Roller Mill Working Principle





Specifications

Model	Grinding Diameter (mm)	Roller Diameter (mm)	Roller Number (n)	Motor (kW)	Output (t/h)
GRMC12.20	1200	900	2	110	5
GRMC16.20	1600	1000	2	250	12
GRMC18.20	1800	1120	2	330	18
GRMC20.30	2000	1250	3	430	20
GRMC22.30	2200	1400	3	590	30
GRMC23.30	2300	1450	3	640	35
GRMC26.30	2600	1600	3	810	44
GRMC28.30	2800	1750	3	1000	55
GRMC30.30	3000	1900	3	1250	65
GRMC35.30	3500	1900	3	1400	70

Note: Mill spectral pattern benchmark
1. Material medium friction HGI=55~60;
2. Material moisture max. 10%
3. Finished product granularity 80mmR3%;
4. Finished product moisture 0.5~1.0%;
5. The concrete mill installed power and technology parameter will be adjusted appropriately basing on the actual material property and the requirements of owner.

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