Ball mill is the key equipment for secondary grinding after crushing. And it is suitable for grinding all kinds of ores and other materials, no matter wet grinding or dry grinding. Besides, it is mainly applied in many industries, such as ferrous&non-ferrous metal mine, building materials, chemical, electric power, coal, traffic, light industry, etc. In our company, this series of high-efficiency ball mill adopts rolling bearing support instead of sliding bearing support with bearing bush. Therefore, it can save energy by 10-20%. According to different discharging ways, it can be divided into two kinds, grate type and overflow type.
Working principle of rolling bearing ball mill
Materials enter the cylinder through the feeding device. During the slow rotation
of the cylinder supported by the rolling bearing, the steel ball is centrifugedThe ore is repeatedly dropped and impacted by force and gravity to achieve crushing and grinding. The ground slurry is discharged through overflow or grate outlets, where the overflow type is suitableFor fine grinding (150-200 mesh finished product) and for coarse grinding (48-65 mesh).
Technical advantages
1. Different from the traditional ball mill, the double-row self-aligning roller bearing is used to replace the traditional sliding bearing, greatly reducing the friction coefficient, and the bearing life can reach 10 years.
2. Therefore, the maintenance cost is greatly reduced.
3. The cylinder liner plate is changed from wave type to circular groove wave type, which improves the grinding efficiency, strengthens the ore lifting capacity and reduces energy consumption.
4. The oil mist lubrication device is used to replace the traditional thin oil station, reduce 80% - 90% of the lubricating oil consumption and avoid oil leakage pollution.
5. Easy installation, use and maintenance, low failure rate.
