The analysis of the causes of the ball mill ball size is big

Ruiguang technical expert for the oversized ball of ball mill  made the following analysis of the reasons for more beneficiation to understand. To accurately determine a reasonable diameter of the ball mill, the first analysis of China's crude steel ball mill oversized reasons. Coarse grinding balls causes are oversized factor theory, but also practical and human factors, as follows:
 

A measurement error technology: ball diameter error method to determine the mill diameter much larger than the laboratory mill, the diameter of a ball thrown under industrial conditions of high crushing of high energy density, without considering the impact of this factor, is also one of the reasons for the ball diameter is too large.
 

2, the test of the theory of knowledge: the lack of a mature theory. Grinding is one of the most complex jobs beneficiation production line factors, therefore from theory to solve this problem is very difficult, although modern solid mechanics have been theoretically calculated from the binding energy between the lattice and defects in solid Studies also have a lot of influence, but still can not solve computationally intensive destruction of rock, a variety of mineral and gangue minerals messy combination of destructive power, computing is powerless.
 

3, the lack of experience: the error empirical data itself. Many plant for the easy way, but not enough balls the size of coarse ore in the role of awareness, ball mill, ball diameter direct reference to some of the experiences listed in the book.
 

4, because the situation of China: China's national conditions and habits influence. Since the sixties and seventies, the phenomenon of large-scale foreign mill is very prominent, of course, with this level of manufacturing machinery, but also with not fully aware of the advantages of a large mill about. Burghardt mill small diameter, the lower the potential energy of the ball mill, ball weight that must be increased to compensate for the potential to improve the ball diameter is insufficient, but the ball diameter should be increased to much specific to how much each mill ball diameter is appropriate, but not a scientific argument.
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