For the treatment of ore with large hardness and coarse grain size, it is necessary to have a large impact force, and it is necessary to install a steel ball with a larger size; the soft ore of the treated ore is smaller in size, and the finer particle size is required to be ground. Load a smaller size steel ball. The ball mill on the production site is loaded with balls of various spherical diameters, and the materials composed of different sizes of ore are processed according to a certain proportion. In theory, only by ensuring that a certain proportion of the balls can be adapted to the particle size composition of the material to be ground can a good grinding effect be obtained. The ratio of steel balls is a relatively complicated technical problem. Therefore, the production plant must be based on actual conditions, after a long-term investigation and research to find a reasonable ratio of loading. The following is a list of empirical figures for the relationship between ball diameter and grain size, which can be used as a reference: Relationship between ball diameter and grain size Zhe Jiang RAF Electric Appliance Co.,ltd. , https://www.ackiliss.com
The size of the steel ball depends on the physical and mechanical properties of the ore and the ore particle size composition.
Ball diameter
(mm)
120
100
90
80
70
60
50
40
Feeding granularity
(mm)
12-18
10-12
8-10
6-8
4-6
2-4
1-2
0.3-0.1