Product Description

The ball mill is a key equipment for crushing materials after they are crushed. It is suitable for crushing various ores, gold, silver, copper, iron, various metal beneficiation, cement, fertilizer, silicate products, refractory materials, glass and other materials.

The ball mill is composed of the main parts such as the cylinder, stone plate, feeder, feed screw, bearing cover, bearing seat, roller, bracket, flower plate, drive seat, bridge bearing seat, pinion, reducer, coupling, motor, large gear, large liner, etc.

Ball mill real shot

Product Performance

Working Principle

The ball mill is mainly composed of the feeding part, the discharging part, the rotating part, the transmission part, etc. Among them, the important parts include: the cylinder, the end cover, the bearing and the transmission gear ring. The main part of the ball mill includes the cylinder, which is lined with a wear-resistant material, and the bearing that can carry the cylinder and maintain its rotation. There are also driving parts, such as motors and transmission gears, V-belts, etc.

The ball mill cylinder is filled with steel balls or steel rods with a diameter of 25-150mm, which are called grinding media. The amount of balls should be 25%-50% of the entire cylinder volume, which is more reasonable. The end caps at both ends of the cylinder are connected to the flanges at the ends of the cylinder by screws. There is a hole in the middle of the end cap, which is called a hollow shaft neck. The hollow shaft neck is supported on the bearing. In addition, a large gear ring is fixed on the cylinder. In the drive system, the motor drives the large gear ring and the cylinder through the coupling, reducer and pinion gear to rotate slowly. When the cylinder rotates, the grinding medium will rise to a certain height with the cylinder, and then fall or fall down in a parabolic curve, thus completing the coordinated operation between the components.

The material is fed into the first bin of the mill evenly through the feeding device through the feeding hollow shaft spiral. The bin has a stepped lining or a corrugated lining, which is filled with steel balls of various specifications. The centrifugal force generated by the rotation of the cylinder brings the steel balls to a certain height and then falls, which produces a heavy impact and grinding effect on the material. After the material is roughly ground in the first bin, it enters the second bin through a single-layer partition plate. The bin is inlaid with a flat lining plate and steel balls to further grind the material. The powder is discharged through the discharge grate plate to complete the grinding operation.

Technical Parameters