The small ball mill is the key equipment for crushing the material after it is broken. It is widely used in cement, silicate products, new building materials, refractories, fertilizers, black non-ferrous metal mineral processing and glass ceramics and other production industries, for a variety of ores and other grindable materials dry or wet grinding. According to different ore discharge methods, it can be divided into two kinds: grid type ball mill and overflow type ball mill.

When working, the material is loaded into the cylinder by the hollow shaft of the feed end of the ball mill, when the ball mill cylinder rotates, the grinding body is attached to the lining plate of the cylinder due to inertia, centrifugal force and friction force, so that it is taken away by the cylinder, when it is brought to a specific height, due to its own gravity and thrown down, the falling grinding body is like a projectile the material in the cylinder body to break. The material is uniformly fed into a bin of the ball mill by the feeding device through the feeding hollow shaft. There are stepped lining plates or corrugated lining plates in the bin, and steel balls of different specifications are installed inside. The centrifugal force generated by the rotation of the cylinder will bring the steel balls to a specific height and then fall down, which will have a pounding and grinding effect on the material. After the material is coarse ground in the first bin, it enters the second bin through the single compartment plate, which is inlaid with a flat liner plate and contains a steel ball to further grind the material. The powder is discharged through the discharge grate to complete the grinding operation.

The advantages of small ball mill are: can be used for dry grinding or wet grinding, reliable operation, cheap grinding body, and easy to replace, good operating conditions, crushing in the closed machine, no dust flying; When crushing explosive materials, the mill can be filled with inert gas instead of air.

Characteristics of ball mill
1, smooth operation, reliable work. The downtime and maintenance time of the ball mill are reduced and the efficiency is improved.
2, the hollow shaft is made of steel casting, the lining can be disassembled, the rotary gear is made of casting hobbing, and the lining plate is inlaid in the cylinder body.
3, according to the material and ore discharge method, can choose dry ball mill and wet grate type ball mill.