Ball Mill

Ball mill is the most widely used kind of grinding equipment.

Ball Mill Introduction

Zenith Ball mills are widely used in various types of ores' benefication, electricity, cement and chemical industries.The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc. as well as for ore dressing of both ferrous non-ferrous metals. The ball mill can grind various ores and other materials either wet or dry. There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. There are many types of grinding media suitable for use in a ball mill, each material having its own specific properties and advantages. Key properties of grinding media are size, density, hardness, and composition.

Two Types Of Ball Mill

Aside from common ball mills there is a second type of ball mill called planetary ball mill Planetary ball mills and The grinding balls.

Planetary ball mills are smaller than common ball mills and mainly used in laboratories for grinding sample material down to very small sizes. A planetary ball mill consists of at least one grinding jar which is arranged eccentrically on a so-called sun wheel. The direction of movement of the sun wheel is opposite to that of the grinding jars (ratio: 1:-2 or 1:-1 or else).

The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so-called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill.

Working Principle of Ball Mill

The ball mill is a horizontal cylindrical rotating device, with outer gears transmission, two warehouses and a grate ball mill. The materials get into the first warehouse through the feeding quill shaft from the feeding device evenly, with the step scale board or the corrugated scale board in the warehouse loaded with different sizes of steel balls. The centrifugal force produced by the rotation of the cylinder raises the steel balls to a certain height, which then fall down, thus making a thumping and abrading to the materials. The materials after coarse grinding in the first warehouse get into the second warehouse with flat scale board embedded with steel sections through the single monolayer partition panel for further crushing. The powder of the materials will be discharged from the unloading board to finish the grinding work.

Ball Mill Benefits

  1. Traditional sliding bearings are replaced by double row roller bearings in small and medium size ball mills to reduce energy consuming
  2. Large ball mills adopt pitot pressure or hydrostatic bearings.
  3. Air clutch system for starting the motor safely
  4. Alternative synchronous or asynchronous motor
  5. Low speed driving unit with Lifting device, convenient for maintenance.
  6. New Endurable wearing parts to increase service life of vulnerable parts.
  7. Alternative PLC automatic control system Optional Accessories ( drum sieve, Hydraulic wrench mobile feeding settings)

Ball Mill Related Knowledge:

  1. 25 tph Cement Ball Mill
  2. Gold Processing Plant
  3. Cement Clinker Processing Plant
  4. Cement Manufacturing Process Flow Chart
  5. Ball Mill For Copper Ore In Pakistan

Technical Data

Technical Specification of Overflow Ball Mill
Model Shell Size D×L(mm) E-Volume(m3) Ball Quanity(t) Rotate Speed(r/min) Power
(kw)
Output size(mm) Capaicty
(t/h)
Remark Weight(T)
MQY2122 2100×2200 6.7 14.7 23.8 160 0.8-0.074 22-5.0 380V 42.9- 46.5
MQY2130 2100×3000 9.2 17 23.8 185 0.8-0.074 25-5.8 380V 48
MQY2136 2100×3600 11 19 23.8 210 0.8-0.074 28-6.0 380V 49.9
MQY2430 2400×3000 12.2 23 22.8 250 0.8-0.074 34-6.6 380V 59.68
MQY2436 2400×3600 14.6 25 22.8 280 0.8-0.074 40.5-7.9 380V 62.9
MQY2445 2400×4500 18.2 31 22.8 355 0.8-0.074 50-9.8 380V 63.5
MQY2721 2700×2100 10.7 20 21.7 280 3.0-0.074 76-6.0 6-10KV 66.7
MQY2730 2700×3000 15.3 28 21.7 355 3.0-0.074 108-8.8 6-10KV 81.8
MQY2736 2700×3600 18.4 34 21.7 355-400 3.0-0.074 130-10.5 6-10KV 83.5
MQY2740 2700×4000 20.5 37 21.7 400-450 3.0-0.074 144-11.5 6-10KV 87.6
MQY2745 2700×4500 23 42.5 21.7 500 3.0-0.074 180-13 6-10KV 127
MQY3231 3200×3100 22.65 22.65 18.6 450 3.0-0.074 164-14.4 6-10KV 131
MQY3236 3200×3600 26.2 26.2 18.8 500 3.0-0.074 171-17.1 6-10KV 135
MQY3245 3200×4500 32.8 61 18.6 630 3.0-0.074 228-22 6-10KV 148.7
MQY3254 3200×5400 39.3 73 18.6 710 3.0-0.074 270-20 6-10KV 165
MQY3645 3600×4500 40.8 76 17.3 800- 1000 3.0-0.074 233-26 6-10KV 180
MQY3650 3600×5000 45.3 86 17.3 1120 3.0-0.074 260-31.5 6-10KV 200
MQY3660 3600×6000 102 102 17.3 1250 3.0-0.074 280-34 6-10KV 240
MQY3685 3600×8500 79 131 17.3 1500 3.0-0.074 400-45 6-10KV 280
MQY4564 4500×6400 85 174 14.54 2000 3.0-0.074 158 6-10KV 285
MQY4570 4500×7000 111 190 15.6 2500 3.0-0.074 200 6-10KV 350
MQY5080 5030×8000 145 240 14.2 3500 3.0-0.074 250 6-10KV
Note:The ball mill model can be customized according to demand.
Technical Specification of Grate Ball Mill
Model Shell Size D×L(mm) E-Volume (m3) Ball Quanity (t) Rotate Speed (r/min) Power (kw) Output size (mm) Capaicty (t/h) Remark Weight(T)
MQG2122 2100×2200 6.7 14.7 23.8 160 0.3-0.074 24-5.3 6-10KV 43.2
MQG2130 2100×3000 9.2 17 23.8 185 0.3-0.074 26-6.0 6-10KV 46.8
MQG2136 2100×3600 11 19 23.8 210 0.3-0.074 29-6.5 6-10KV 49.1
MQG2430 2400×3000 12.2 25 22.8 250 0.3-0.074 38-7.5 6-10KV 57.8
MQG2436 2400×3600 14.6 30 22.8 280 0.3-0.074 42-8.5 6-10KV 60.8
MQG2445 2400×4500 18.2 37 22.8 400 0.3-0.074 55-10.5 6-10KV 66.3
MQG2721 2700×2100 10.7 24 21.7 280 0.3-0.074 84-8.5 6-10KV 66.4
MQG2730 2700×3000 15.3 32.5 21.7 355 0.3-0.074 120-10 6-10KV 77.3
MQG2736 2700×3600 18.4 39 21.7 400 0.3-0.074 145-12 6-10KV 82.4
MQG2740 2700×4000 20.5 43 21.7 450 0.3-0.074 159-13 6-10KV 84.73
MQG2745 2700×4500 23 50 21.7 500 0.3-0.074 180-15 6-10KV 89.1
MQG3231 3200×3100 22.65 46.9 18.6 500 0.3-0.074 182-16 6-10KV 139
MQG3236 3200×3600 26.2 52 18.8 560 0.3-0.074 190-19 6-10KV 143
MQG3245 3200×4500 32.8 65 18.6 710-800 0.3-0.074 235-29 6-10KV 151
MQG3254 3200×5400 39.2 81.6 18.6 800-1000 0.3-0.074 280-35 6-10KV 161
MQG3645 3600×4500 40.8 88 17.3 1000 0.3-0.074 259-29 6-10KV 190
MQG3650 3600×5000 45.3 96 17.3 1120 0.3-0.074 288-35 6-10KV 200
MQG3660 3600×6000 54.4 117 17.3 1250 0.3-0.074 310-38 6-10KV 220
MQG3685 3600×8500 79 144 17.3 1800 0.3-0.074 450-50 6-10KV 260
MQG4040 4000×4000 45 82 16.4 1000 0.3-0.074 230 6-10KV 220
MQG4050 4000×5000 57 161 16.4 1250 0.3-0.074 270 6-10KV 260
MQG4560 4500×6000 85 162 15.42 2000 0.3-0.074 285 6-10KV 285
MQG5264 5200×6400 123 229 14.3 2×1600 0.3-0.074 320 6-10KV 350
Note:The ball mill model can be customized according to demand.

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