# Tips For Adding Steel Balls In Ball Mill

2020-08-27

The steel ball is the grinding medium of the ball mill equipment, and the grinding effect is produced by the collision and friction between the steel ball and the material.

During the working process of the ball mill, whether the grinding body steel ball gradation is reasonable or not is related to the working efficiency of the equipment. Reasonable selection of the ball mill steel ball gradation is an indispensable measure to improve the output and quality of the ball mill.

### The Basic Principle Of Steel Ball Grading

- The harder the material, the larger the diameter of the steel ball;
- If the diameter of the mill is large, the impact force is large, and the diameter of the steel ball is small;
- If a double-chamber partition is used, the ball diameter should be smaller than a single-layer partition plate with the same discharge section;
- Generally, four-level balls are allocated, with few large and small balls, and large middle balls.

### Factors To Be Considered When The Steel Balls Are Proportioned

- The equipment model, such as the diameter and length of the cylinder;
- Production requirements, that is, the user’s standard for the grinding fineness of materials;
- Material properties refer to the initial particle size, hardness and toughness of the material being ground;
- Specifications and sizes. Pay attention to the specifications, and not blindly pursue large specifications.

### Skills For Adding Steel Balls In Ball Mill

After the ball mill is installed, after normal continuous operation for two or three days, check the meshing of the large and small gears. When everything is normal, add the remaining 20% steel balls.

The proportion of steel balls in the ball mill is a more complicated technical issue. Each ore dressing plant must carefully analyze its actual situation and find out the suitable ball ratio.