Overflow Ball Mill

Overflow Ball Mill
Overflow Ball Mill
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HZE MINING ENGINEERING

The overflow ball mill is used to grind ores and other materials to fine particles.

Working principles
The transmission device drives the shell to rotate. After materials and water are fed into the shell, the size of the materials is reduced by the impact of the steel balls and ores that drop from the feeding end. The continuous feeding compels the materials to move from the feeding end to the discharge end. The ore slurry as a mixture of the ground particles with appropriate sizes and water flows out of the outlet.


Features & Benefits
  • The transmission device adopts big double-row spherical roller bearings and hybrid bearings, substantially decreasing the friction force, enabling an easier starting and reducing the energy consumption by 20% to 30%.
  • The adoption of grooved ring high manganese steel liners increases the contact surface between the balls and the ores to strengthen the grinding, reducing the energy consumption.
  • The steel frame can be used for the ball mills with a diameter under 2.7 meters to benefit the modular plant design, civil engineering constructions and equipment installation.
  • A large discharge outlet boosts the production capacity.
  • The ball mills can be equipped with a high-voltage or low-voltage electric motor and deploy high manganese steel or wear-resistant rubber liners according to users' site conditions and demands. The customers can also choose the brand of motor and reducer which are installed in a ball mill.
  • The ball mills adopting hybrid bearings are also equipped with hydraulic jacks to make it convenient for installation and overhauling.
  • Stable and reliable operation and performance.
  • The ball mills with a large diameter are equipped with the slow-speed transmission device, enabling inspection and operation.
  • The oil-mist lubrication device ensures the gears' reliable and smooth function.
Application

The overflow ball mill can be used in preliminary grinding and further grinding for finer particles.

As one type of the most common mining equipments, ball mills are widely used in mineral processing, construction and chemical industries and for acquiring silicate and other processed ores. In general, the ball mills are used by small, medium and large-sized mineral processing companies to crush and grind ores, including gold, silver, copper, lead, zinc, nickel, manganese, iron and molybdenum, as well as limestone, barite, quartz, graphite, feldspar and fluorspar.

Technical Parameters
Small Size
Model Shell Diameter (mm) Shell Length (mm) Motor Model Power (kW) Effective Volume (m3) Max. Ball Load (t) Weight (t)
MQYs0918
900 1800 Y225M-8 22 0.9 1.7 5496
MQYs1212
1200 1200 Y250M-8 30 1.1 2.0 11598
MQYs1224
1200 2400 YR280S-8 55 2.2 4.1 12489
MQYs1515
1500 1500 JR115-8 60 2.2 4.1 13841
MQYs1530
1500 3000 JR125-8 95 5 9.3 18801
Medium Size
Model Shell Diameter (mm) Shell Length (mm) Motor Model Power (kW) Effective Volume (m3) Max. Ball Load (t) Weight (t)
MQYs2122
2100 2200 JR128-8 155 6.6 12.3 45510
MQYs2130
2100 3000 JR137-8 210 9 16.7 45920
MQYs2136
2100 3600 JR137-8 210 10.8 20.1 52130
MQYs2145
2100 4500 JR148-6 310 13.5 25.1 58410
MQYs2430
2400 3000 JR1410-8 280 12.1 22.5 65996
MQYs2721
2700 2100 JR1410-8 280 10.7 19.9 63010
MQYs2736
2700 3600 TDMK400-32 400 18.4 34.2 96697
MQYs2740
2700 4000 TDMK400-32 400 20.4 37.9 78930
MQYs3230
3200 3000 TDMK500-36 500 21.8 40.5 107740
MQYs3245
3200 4500 TDMK630-36 630 32.8 61.0 132362
MQYs3254
3200 5400 TM1000-36 1000 39.4 73.3 141121
Large Size
Model Shell Diameter (mm) Shell Length (mm) Motor Model Power (kW) Effective Volume (m3) Max. Ball Load (t) Weight (t)
MQYs3645
3600 4500 TM1000-36 1000 41.8 77.7 158147
MQYs3650
3600 5000 TM1250-40 1250 46.4 86.3 165200
MQYs3660
3600 6000 TM1250-40 1250 55 102.3 187321
MQYs3690
3600 9000 TDK1800-30 1800 83 154.4 212410
MQYs3867
3800 6700 TDK1500-30 1500 70 130.2 196198
MQYs4067
4000 6700 TDK1600-30 1600 78 145.1 207256
MQYs4561
4500 6100 TDK2200-30 2200 93 173.0 238321
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