Cement Mill

Cement mill is the key equipment for grinding after the crush process

Cement Mill Overview

A cement mill is the equipment that used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is currently ground in ball mills.

Cement clinker is usually ground using a cement ball mill. This is essentially a large rotating drum containing grinding media - normally steel balls. As the drum rotates, the motion of the balls crushes the clinker. The drum rotates approximately once every couple of seconds.

Grinding systems are either 'open circuit' or 'closed circuit'. In an open circuit system, the feed rate of incoming clinker is adjusted to achieve the desired fineness of the product. In a closed circuit system, coarse particles are separated from the finer product and returned for further grinding.

Cement Mill Has A Wide Range Of Application

This cement ball mill is mainly used in grinding cement finished products and raw materials and also suited to metallurgical, chemical, electricity etc. and other industrial mining enterprises. It could also be used to grind various ore materials and materials that is grindability.

Cement Mill Benefits

  1. Strong adaptability;
  2. Continuous produce;
  3. Broken rate large;
  4. Easy to adjust the product grinding fineness etc;
  5. It can not only produce with wet type, but also grind and dry simultaneously.

Working Principle of Cement Mill

Cement mill is a simplified level, out of the hollow shaft and grinding materials and other components, simplified for the long cylinder, cylinder equipped with a grinding, cylinder of steel plate, with steel liner and simplified fixed, grinding media generally steel ball, according to different tube diameters and a certain percentage of load in, section steel grinding media can also be used.

When the cylinder rotates, the material and the ball under the action of centrifugal force, close to the liner, due to the role of friction, the material and the ball into the cylinder a certain height, the gravity, the ball and materials while whereabouts of the ball crushing the material, while the relative liner material sliding friction occurs, the resulting abrasive material, grinding the material so as to achieve the purpose.

Material by the feeding device into the compound air evenly into the mill screw shaft first warehouse, the warehouse there are ladder liner or corrugated liner, built with different specifications steel ball, rotating cylinder produces centrifugal force to the ball a certain height After the fall, have severe impact on the material and abrasive. Coarse material in the first position to reach, after single-compartment plate into the second warehouse, the warehouse lined with flat lining, there are balls, the material to further grinding. Powder discharged through the discharge grate plate, complete the grinding operation.

Cylinder in the rotary process, the grinding phenomenon has slipped in the fall to the process of abrasive material in order to effectively use abrasive effect on the larger particle size is generally twenty head when finely ground, the body tube mill body with the diaphragm plate separated Sec, it becomes two-position, materials into the first position when the ball was crushed, the material into the second position when the end of the material for grinding steel, finely ground material passing from the discharge end of the discharge hollow shaft, the small particles of feed material for pulverized, as in II slag sand, coarse fly ash, mill shell could have no partitions, a single-chamber tube mill, grinding the volume of steel can also be segment.

Cement Mill Related Knowledge:

  1. Cement Clinker Processing Plant
  2. Cement Manufacturing Process Flow Chart

Technical Data

Cement Mill
Specification (Dia×
Rotating speed (r/min) Feed size (mm) Capacity (t/h) Grinding media load (t) Main motor Main reducer Weight(t)
Model Power
Rotating speed (r.p.m) Model Reduction ratio
φ2.2×11 20.91 ≤25 15~17 50 TR1512-8 570 740 Zd80 5.6 92
φ2.4×8 20.91 ≤25 14~18 39.5~42 TRQ1512-8 570 740 Zd80-9 5 76.4
φ2.4×9 20.91 ≤25 23~25 Closed circuit 50 TR1512-8 570 740 Zd80-9 5 91
φ2.4×10 20.91 ≤25 16~22 50 TR1512-8 570 740 Zd80-9 5 111
φ2.4×11 21 ≤25 Open circuit 19~24 Closed circuit 22~28 6265 YR710-8/1180 710 740 JDX630 5.6 125
φ2.4×12 21 ≤25 Open circuit18~20 Closed circuit 21~23 6365 YR800-8/1180 800 740 MBY710 6.3 127
φ2.4×13 21 ≤25 Open circuit21~22
Closed circuit 24~26
6668 YR800-8/1180 800 740 MBY710 6.3 131
φ2.6×10 20.6 ≤25 21~24 64 YR800-8/1180 800 740 JDX710 6.3 140
φ2.6×13 20.6 ≤25 28~31 81 YR1000-8/1180 1000 740 JDX800 6.3 158
φ3.0×9 19.13 ≤25 40~45 85 YR1000-8/1180 1000 740 MBY800 7.1 148
φ3×11 18.92 ≤25 44~47 95 YR1250-8/1430 1250 740 JDX900 7.1 177
φ3×12 18.92 ≤25 48~52 103 YR1250-8/1430 1250 740 JDX900 7.1 182
φ3×13 18.92 ≤25 39~45 116max YR1400-8/1430 1400 740 JDX900 7.1 200.7
φ3.2×11 18.3 ≤25 45~48 112max YR1600-8/1430 1400 740 JDX900 7.15 213.6
φ3.2×13 18.7 ≤25 50~55 133max YR1600-8/1430 1600 740 JDX1000 7.15 237
φ3.4×11 18 ≤25 45~55 120max YR1600-8/1430 1600 740 JDX1000   230
φ3.5×13 17 ≤25 60~65 156max YR2000-8/1730 2000 740 TS130-A-F1   257.6
φ3.8×13 17 ≤25 65~70 185 YR2500-8/1730 2500 740 DMG22/2500   313
φ4×13 16.3 ≤25 78~80 191 YRKK900-80 2800 745 JS140-A   348
φ4.2×11 15.8 ≤25 100~110 182~190 YR2800-8/17830 2800 740 JS140-A-F1D   350
φ4.2×13 15.2 ≤25 110~120 230 YRKK1000-8 3350 740 MFY355-A   380
φ4.6×14 15 ≤25 100~115 285 YR1000-8 4200 740 J3160-C   485

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