Coal Mill Machine
【What’s the Coal mill machine?】
Coal ball mill is the main equipment for grinding pulverized coal. The raw material of coal powder is coal with various hardness, and it drying in the coal mill grinding process to obtain finished coal powder which can be efficiently burned.
The air swept coal mill is an ideal pulverized coal processing equipment that can be ground and dried. It has the characteristics of high efficiency, energy saving and environmental protection. More than 85% of the pulverized coal passes through the 200 mesh screen, and the moisture is less than 2%. It is an ideal equipment for pulverized coal grinding used in industrial furnaces, rotary kilns and so on.
【Feature of Coal mill machine】
The air swept coal mill is edge driven, and the motor drives the mill through the reducer and pinion pair. The coal mill adopts an air swept structure with a drying bin, so that the coal mill has greater adaptability to the moisture of raw coal. The combined arrangement of stepped liner, double stepped liner and corrugated liner is adopted in the grinding bin, which improves the grinding capacity of the coal mill. The feeding device adopts a louver structure with inclined air inlet, which enhances the heat exchange capacity of the air swept coal mill and can effectively prevent the blockage of the coal mill inlet.
【Coal mill Manufacture】As a Coal ball mill manufacturer, we could provide the worry free after-sales guarantee when purchasing equipment in our company. You have a specially assigned person to be responsible for every step of production, and you have a specially assigned person to solve the late faults in time, so as to ensure the smooth and high-yield progress of your production.

Coal Mill Structure

【Coal Mill Parts】The equipment is mainly composed of feeding device, main bearing, rotating part, transmission device, high-pressure starting device and lubrication system.
【Working Principle of Coal mill】The raw materials are loaded into the coal mill through the feeding equipment, and the hot air enters the mill through the air inlet pipe. With the rotation of the mill barrel, the coal and hot air exchange in the mill, and the coal is crushed and ground in the mill. While the coal is ground, the fine powder is brought out of the mill through the hot air in the mill through the discharge device.
Coal Mill Technical Parameter
Model(m) | Φ1.7×2.5 | Φ2.2×4.4 | Φ2.4×4.75 | Φ2.4×4.5+2 | Φ2.6×5.25+2.25 | Φ2.8×5+3 | Φ3.0×6.5+2.5 | Φ3.2×6.75+2 | Φ3.4×6+3 | Φ3.8×7+2.5 |
RPM (r/min) | 24.5 | 22.4 | 20.4 | 20.4 | 19.7 | 18.3 | 18.3 | 16.9 | 17.5 | 16.4 |
Capacity (t/h) | 3-5 | 8-9 | 12-14 | 11-12 | 13-14 | 16-17 | 19-20 | 25-30 | 28-30 | 38-40 |
Feed size (mm) | <25 | <25 | <25 | <25 | <25 | <25 | <25 | <25 | <25 | <25 |
Balls load(t) | 7.5 | 20 | 22 | 22.5 | 28 | 32 | 43 | 50 | 55 | 80 |
Power (kw) | 95 | 250 | 280 | 315 | 400 | 500 | 630 | 710 | 800 | 1250 |
Weight (t) | 29 | 46 | 54 | 76 | 98 | 107 | 124 | 148 | 162 | 215 |
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