Ball mills are the crucial equipment used for crushing the materials after they are primarily crushed. It is widely used in various production industries such as cement, silicate product, new type of building material, refractory, fertilizer, ferrous and non-ferrous metal ore beneficiation, glass and ceramics for the dry and wet type grinding of various ores and other grindable materials. We know that for any machine operation, we can"t let their work too often, when the strength reaches a certain limits, the work will happen unexpected failure. Likewise for energy-saving ball mill, if works too often without modification, it will make its internal heat rise, which will continue consuming machine performance,resulting that it can"t work well. Like a man"s stomach, if eat too much it will stay bad belly, ball mill machine works arrival to a certain extent, it also should be paid attention to the maintence of a period of time. So the finishing is good, and reaction comes over, cooling down to do some work will be more insurance. Why do you say so?1. Energy-saving ball mill internal expansion excessively can destroy energy saving ball mill used in the ore beneficiation production line, in particular, when situation is especially serious ,there will be a large pieces of ore and the steel ball rolled out of the discharging mouth, which is the so-called "prior to spit after pull", for the wet energy saving ball mill there may be a large number of folders with ore head block and ball slurry overflow from the feed.2. Machine inside expandes excessively that will make grinding ore capacity of the energy saving ball mill machine reduction, destroying the normal grated work order. On the other hand, solving the problem of up belly at later stage will also bring the great influence on the subsequent assignments including ore mass fraction and fineness, making the normal work not well.Based on the above two conditions, it will lead to serious damage to the gears...