How to add steel balls to the ball mill is suitable, and how to configure the steel balls?
The steel ball of the ball mill is the grinding material medium of the ball mill equipment, and the grinding and peeling effect is produced by the collision and friction between the steel ball and the material between the steel balls of the ball mill. During the working process of the ball mill, whether the gradation of the steel balls in the grinding body is reasonable is related to the working efficiency of the equipment. Only by ensuring a certain proportion of various balls can it adapt to the particle size composition of the material to be ground, and a good grinding effect can be achieved.
Basic principles of steel ball grading in ball mill
1. To deal with ore with large hardness and coarse particle size, a greater impact force is required, and larger steel balls need to be loaded, that is, the harder the material, the larger the diameter of the steel ball;
2. The larger the diameter of the mill, the greater the impact force, and the smaller the diameter of the selected steel ball;
3. For double-compartment partitions, the diameter of the ball should be smaller than that of single-layer partitions with the same discharge section;
4. Generally, there are four levels of ball distribution. There are fewer large and small balls, and the middle ball is larger, that is, “less at both ends and more in the middle”.
Factors to be considered in ball mill steel ball ratio
1. Equipment model, such as cylinder diameter and length;
2. Production requirements, that is, the user’s standard for grinding fineness of materials;
3. Material properties refer to the initial particle size, hardness and toughness of the ground material;
4. Specifications and sizes, please pay attention to the size of the specifications, and you cannot blindly pursue large specifications.
Ball mill steel ball adding skills
The proportion of steel balls in the ball mill depends on the effective length of your mill, whether it is equipped with a roller press, the size of the feed material, the liner and structure used, the expected fineness of the sieve residue and the specific table, how many chromium balls to use, and the speed How much and other factors are comprehensively judged. After the ball mill is installed, the large and small gears of the ball mill need to be meshed, and the processing capacity must be gradually increased. After the ball mill has been running normally for two or three days, check the meshing of the large and small gears. When everything is normal, turn on the ball mill and add the remaining 20% steel balls for the second time. .