Choosing the right ball mill products type is the first step. Choosing the in-built balls of ball mill products is also very important. There are many factors needed to be considered to determine the ball mill in-built ball size and proportion:
The sphere diameter size of steel ball in ball mill products depends on the particle size, hardness, thickness of the ground material, the diameter, rotating speed of ball mill, the ball mill thickness and pulp density. It is mainly decided by the particle size of ground materials. The feeding of grinding mill consists of several particles of different sizes. It has been proved that when dealing with ore of large hardness or coarse grain, greater impact force is needed and the balls of large size should be added; when the ore is soft, the particle size is smaller, and thinner grinding is needed, grinding is most considered and balls with smaller size should be added. Choosing the sphere diameter is related to the diameter and rotating speed of ore grinding mill. The sphere diameter of ball mill with larger diameter and higher rotating speed should be smaller. In a word, the large ore needs the big ball impact force while the little ore needs ground by little ball. After choosing the right sphere diameter of ball mill products in-built steel ball, the weight proportioning of steel balls with different diameter should be set. In theory, in order to reach fine ore grinding effect, the quality of various balls in ball mill and the particle size of ground material should be compatible. The ball mill on-spot is fitted with ball s of different sizes to deal with mixed materials of different particle sizes.
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