Cement Ball Mill

Coal Ball Mill

【Product description】: Coal ball mill is one of the auxiliary machine of the thermal power station and an important equipment for the pulverized coal preparation system.
【Product capacity】: 12-38 t/h
【Product application】: Power plants, cement plants, lime plants, etc.
【Power Consumption】: 23~33kWh/t

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Coal mill is a machine that crushes and grinds the coal briquette into pulverized coal. It is important auxiliary equipment of pulverized coal furnace. During the coal grinding process, the coal is crushed and its superficial area increases continually. To add new superficial area, the bond between solid molecules must be overcome, so the energy is consumed. The coal is grinded into pulverized coal in the coal ball mill mainly by means of three ways: press, strike and grind. Among them, the first way is the most energy-saving, and the last one most energy-consuming. During the milling process, all kinds of coal mills use two or three of these ways.
Product characteristics:

1. less investment, more energy-saving than similar products;

2. easy to operate, safe to use, stable and reliable performance;

3. running stably and continually, the production capacity is great

Compared with ball mills with the same specification, the yield of coal mill increases drastically, and the finished product is fine, achieving the high-yield and super-fine goal. It provides a new kind of grinding equipment to produce high-quality pulverized coal.


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When working, the steel balls in the cylinder continuously hit and squeeze the coal to grind the coal into pulverized coal. The materials enter the first cabin of the mill spirally and evenly through the feeding apparatus and hollow shaft. In the first cabin, there is stepped liner or corrugated liner, and steel balls with different specifications. The centrifugal force generating from the rotation of the cylinder brings steel balls to a certain height, and then the balls fall, thumping and grinding the materials. After coarse grinding in the first cabin, the materials enter the second cabin by single-wall partition. There is flat liner and steel balls in the second cabin, where the materials are grinded further. Finally, the powder is discharged through discharge grate and the grinding operation is finished.


Model Output(t/h) Rotate Speed(r/min) Feed size(mm) Effective Volume(m³) Grinding Media Load(t) Drive mode Motor(KW) Main reducer Weight(t)
Φ2.4×4.75 12 20.4 ≤25 19.3 22 Rim drive 280 ZD60 50
Φ2.4×4.5+2.0 12 20.4 ≤25 18.3 22.6 Rim drive 280 JD450 70.1
Φ2.6×5.25+2.25 13-15 18.7 ≤25 25.8 34 Rim drive 400 MBY560 80
Φ2.8×5.75+2.25 18-20 18.7 ≤25 32.9 38 Rim drive 500 MBY630 118.5
Φ2.9×4.1 16 18.8 ≤25 27.1 35 Rim drive 500 JDX560 74
Φ3.0×6.5+2.5 20 18.4 ≤25 43.3 46.5 Rim drive 630 JDX630 119
Φ3.2×6.5+2.5 28 18 ≤25 67 65 Rim drive 710 JDX800
Φ3.4×6.0+3.0 30 17.47 ≤25 64 60 Rim drive 900 JDX800 167
Φ3.4×7.5+1.5 30-38 17.5 ≤25 64.1 70 Rim drive 1000 MBY800 178
Φ3.6×6.5+2.5 32 17 ≤25 69 60 Rim drive 1000 MBY800 204
Φ3.8×7.0+2.5 38 16.4 ≤25 75 80 Rim drive 1250 JDX800 216


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Φ3.2×13m three-bin high fine ball mill and coal mill are used in 1200t/d cement clinker production line in Xinjiang, China, and play extremely good production performance.

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Office Add: Mengzhuang Town, Huixian City, Henan Province, China