On the Misunderstanding and Affect the Quality of Steel Ball Mill

The ball mill ball quality not only affects productivity size, also affect the ball consumption level, and the effect of grinding medium cost. Only the pursuit of high hardness and low consumption is wrong. High hardness and low consumption is not equal to low cost, high hardness and low consumption of the ball is often high price. High hardness does not necessarily make productivity increase, or even decline, only high productivity can make the unit consumption index decreased. Therefore, the primary criterion for choosing the ball should be mill productivity and the grinding medium and low cost. Only the high productivity and the grinding medium to low cost with good economic benefit. Economic benefit is a necessary condition for the survival and development of enterprises.

Select the ball, there are two problems often ignored: the ball is not more hard as possible, but has its proper hardness; ball density is a problem that can not be ignored. Effects on hardness, generally speaking, the hardness increases, if not broken, the steel ball consumption lowered; but also make the sphere deformation small, by breaking ball deformation is small, the energy can be used for more crushing ore grain, can make the grinding mill productivity increase. But the ball grinding mill hardness increase is only modest, a proper range, not more hard. If we only consider the ball consumption, consumption is higher the lower hardness. But in terms of productivity of ball mill, in a certain range of productivity increases with ball hardness increases, but when the hardness more than a certain range of grinding mill productivity adversely affect productivity, make the grinding mill. There are two reasons ball hardness is too high for grinding adverse:

The ball mill ball rebound beat severely, causing part of the energy loss in the rebound, the ball is not the energy used for more broken, so the impact crushing;

The ball mill ball hardness is too high, the mutual contact between the...