MQ Series Ball Mill

MQ Series Ball Mill

Ball Mill is the most widely used a grinding equipment.The zenith of ball mill is widely used in various types of ore dressing, power, cement and chemical industries. High crushing rate and can be dry or wet grinding and sustainable mass production can meet the demand. The most widely applied to the production of all kinds of ores wet overflow ball mill and wet ball mill grid. In the mining industry, mining ball mill are widely used as a common machine.

Detailed Introduction

Technical Features And Advantages

  • 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).

The Working Principle Of The Ball Mill

Ball mill for the edge of the drive, the center of the ball mill. When the body rotates, the hard sphere is subjected to continuous projectile movement due to friction. The material is highly crushed by the impact and grinding of the moving hard sphere, and the material to be pulverized is discharged through the discharge grate plate, the hopper plate, and the discharge screw barrel.

The Structural Characteristics Of The Ball Mill

The ball mill is mainly composed of the rotating part, the main bearing, the feeding device, the discharging device, the transmission device and so on.

  • 1, the rotation part

    Made of high-quality carbon steel plate welded coil and bolted connection of the two ends of the lid. The cylinder is fitted with a protective liner and an end cap. When the ball mill for the double position, the cylinder is equipped with a single compartment board, in order to check and repair the ball mill parts and into the ball mill into the grinding body. Each cylinder in the cylinder is provided with a grinding door. The end cap is flat cone, with flange, and the cylinder at both ends of the flange phase, the small end of the hollow shaft, the flange plane and hollow journal requirements have a higher processing accuracy. The rotating part of the cylinder is supported on the two main bearings. The cylinder as a result of the temperature difference between the expansion and installation errors, the two main bearing and the end of the hollow shaft to leave a room for expansion and contraction, in order to ensure the normal gear meshing, telescopic retention gap is located in the feed end of the journal.

  • 2, the main bearing

    The ball mill is supported by the hollow shaft on the two main bearings, the main bearing is subject to the weight of the whole ball mill and the grinding body and the material, but also by the torque of the ball mill. The main bearing is a plain bearing, which consists of a bearing cap, a spherical tile and a spindle seat, and the inner surface of the spherical tile is poured into the paste. Hollow shaft rotation produces a lot of heat, in order to reduce the bearing temperature, bearing the lower part of the face, with cooling water pipes.

  • 3, feeding device

    When the ball mill is wet, it is composed of a spoon feeder and a feed lining. The spoon head of the feeder is cast from high manganese steel and connected to the spoon with bolts.

    When the ball mill is dry, it consists of a feed rotor and a feed screw, which is fitted with a backing plate.

  • 4, the discharge device

    When the ball mill is wet, it consists of the discharge screw and the discharge bell. Ball mill for the dry, by the discharge screw, screen, flashing valve, discharge cover composition.

  • 5, the transmission device

    By the motor, reducer through the coupling drive drive the bridge on the pinion, pinion drive fixed in the rotation of the large gear, leaving the ball mill rotation.

    It must be noted that the ball mill drive arrangement can not be arbitrarily changed, if for some reason not change, you must ensure that the pinion on the role of large gears always up, if the ball mill steering change, the ball mill rotating part of the directional parts Should be changed accordingly, such as the hoisting board, ladder liner, into the material such as spiral tube.

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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