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This ball mill is typically designed to grind mineral ores and other materials with different hardness, and it is widely used in different fields, such as ore dressing, building material field, chemical industry, etc. Due to the difference of its slurry discharging method, it is divided to two types: grid type ball mill and overflow type ball mill.

Ball mill application

A ball mill is a cylindrical device used in grinding materials like ores, alloys, coal, coke, fibers, cement clinker, refractory material, ceramics, limestone, quartz, gypsum, metal oxides, slag, etc. But ball mills cannot be used in the preparation of some pyrotechnic mixtures such as flash powder because of their sensitivity to impact.

Therefore, ball milling machines are widely used in cement, silicate products, new building materials, refractory materials, fertilizers, beneficiation of ferrous and non-ferrous metals, glass, ceramics, mining, and other industries.

Ball mill components

Ball mills consist of the following components:

  • Inlet – crushed ore is fed to the ball mill through the inlet.
  • Discharge – reduced feed exits the mill through the discharger.
  • Drum – the drum is the cylindrical casing of the ball mill. The inside surface of the ball mill drum is fitted with liners (also referred to as armor) that protect the steel shell from abrasion. There are several types of liners like galvanized iron plates, manganese liners, rubber liners, etc. Choose the appropriate liner according to the grinding material, output, budget, etc.
  • Ring Gear – a gear ring installed on the outer periphery of the drum.
  • Electric Motor – a motor used to rotate the drum. The motor drive train leads to a gearbox than a ring gear. The motor is usually fitted with a variable speed drive (VSD) to control the rpm of the ball mill.
  • Gearbox – used for speed reduction from the motor to the ball mill.
  • Balls-ball mill balls are also known as ball mill media. There are steel balls, ceramic balls, manganese alloy steel balls, etc. The material depends upon what material the ball mill will grind. The ball size is also of great importance. You need to choose the appropriate ball type, ball size, and ratio of large, medium, and small balls, for higher grinding efficiency.
  • Bearings - smaller ball mills use anti-friction cylindrical roller bearings. Larger ball mills use trunnion bearings and hydrostatic bearings.

Ball mill components

Working Principle of Ball mill:

As the mill rotates, steel balls work to grind the materials. The mill rotates approximately once every couple of seconds.

The grinding system uses either 'open circuit' or 'closed circuit'. In an open circuit system, the feed rate of materials is adjusted to achieve the desired fineness of the product. In a closed circuit system, coarse particles are separated from the finer ones and sent back for further grinding.

When final products reach the fineness standard, they are discharged out of the mill.

Ball mill of Technical Specifications:

ModelShell SizeE-VolumeBall LoadR-SpeedPowerOutput SizeCapacityRemark
D×L(mm)(m3)(t)(r/min)(kw)(mm)(t/h)
MQG21362100×3600111923.82100.3-0.07429-6.5380V
MQG24302400×300012.22522.82500.3-0.07438-7.5380V
MQG24362400×360014.63022.82800.3-0.07442-8.5380V
MQG24452400×450018.23722.84000.3-0.07455-10.56-10KV
MQG27212700×210010.72421.72800.3-0.07484-8.56-10KV
MQG27302700×300015.332.521.73550.3-0.074120-106-10KV
MQG27362700×360018.43921.74000.3-0.074145-126-10KV
MQG27402700×400020.54321.74500.3-0.074159-136-10KV
MQG27452700×4500235021.75000.3-0.074180-156-10KV
MQG32453200×450032.86518.6710-8000.3-0.074235-296-10KV
MQG32543200×540039.281.618.6800-10000.3-0.074280-356-10KV
MQG36453600×450040.88817.310000.3-0.074259-296-10KV
MQG36503600×500045.39617.311200.3-0.074288-356-10KV
MQG40404000×4000458216.410000.3-0.0742306-10KV
MQG40504000×50005716116.412500.3-0.0742706-10KV
MQG45604500×60008516215.4220000.3-0.0742856-10KV
Note:The ball mill model can be customized according to demands.
ModelShell SizeE-VolumeBall LoadR-SpeedPowerOutput sizeCapacityRemark
D×L(mm)(m3) (t)(r/min)(kw)(mm)(t/h)
MQY21362100×3600111923.82100.8-0.07428-6.0380V
MQY24302400×300012.22322.82500.8-0.07434-6.6380V
MQY24362400×360014.62522.82800.8-0.07440.5-7.9380V
MQY24452400×450018.23122.83550.8-0.07450-9.8380V
MQY27212700×210010.72021.72803.0-0.07476-6.0380V
MQY27302700×300015.32821.73553.0-0.074108-8.8380V
MQY27362700×360018.43421.7355-4003.0-0.074130-10.5380V
MQY27402700×400020.53721.7400-4503.0-0.074144-11.56-10KV
MQY27452700×45002342.521.75003.0-0.074180-136-10KV
MQY32453200×450032.86118.66303.0-0.074228-226-10KV
MQY32543200×540039.37318.67103.0-0.074270-206-10KV
MQY36453600×450040.87617.3800-10003.0-0.074233-266-10KV
MQY36503600×500045.38617.311203.0-0.074260-31.56-10KV
MQY45644500×64008517414.5420003.0-0.0741586-10KV
MQY45704500×700011119015.625003.0-0.0741686-10KV
MQY50805030×800014524014.235003.0-0.0742506-10KV