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In the front, we have always emphasized the phenomenon of the ball mill, which analyzed a variety of why the causes of burning watts were analyzed, and the tips for solving such problems were analyzed. In fact, there are many theories involved in the ball grinding, this article we explain the fluid lubrication theory involved in the ball grinding.
The fluid lubrication theory is known that when the two friction surfaces are completely separated by the fluid layer, the friction between the interface is substituted by internal friction between the molecules in the fluid film, and the friction coefficient is significantly reduced, generally only 0.001 to 0.008. The results of the analysis of the analysis of the wet ball mills showed that the main reason for the burning tiles lies in the shaft tiles and hollow shafts fail to achieve complete fluid lubrication, resulting in direct contact with hollow shafts, increased friction, increased radial tiles, tile alloy damage Even melting. A fully fluid lubrication between the shaft tile and the hollow shaft is mainly dependent on the contact state and lubrication of the tile and the hollow shaft during operation.
The ball mill has a wide range of applications in mines, chemicals, metallurgical, coal, building materials and other industries, is a common large grinding equipment. The ball mill bearing not only supports the weight of the entire rotating portion, but also withstand the impact load generated by the abrasive body and material. Because of its large weight, the main bearing is largely used in sliding bearings. Ball mill is burned into a common equipment failure of cement factory. The occurrence of the burning wava not only reduces the life of the bearing alloy lining, but also directly affects the operational rate of the powder mill system, affecting the economic benefits of the enterprise. Therefore, it is necessary to seek to prevent improvements for the main bearing tiles.
