determining the wear rate on balls in a ball mill. abrasive and impactive wear of grinding balls in rotary mills saimm. apr 4, 1986 related to the rate of ball wear by a consideration of the number of balls in a size interval, as follows. if nj is the number of balls in the mill whose.
One of the major problems regarding the use of ball mills is to balance the size distribution of grinding media into the mill, which is determined by the speed of consumption and rate of replacement , as the wear of the grinding balls requires their substitution at intervals.
Ball Mill Ball Wear Projection. In any mill, the rate at which the weight of any ball decrease is directly proportional to its weight. In any mill, the rate at which the diameter of a ball decreases is directly proportional to its diameter. In any mill, the rate at which the surface of any ball decreases is proportional to its surface.
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Gates, J.D, Giblett, A, Dunne, R. (2012) Prediction of plant ball mill media wear rates from laboratory ball mill test data, Comminution '12, Minerals Engineering. Metal wear in crushing and ...
Dec 08, 2009· Ball wear can be measured by weighing an entire charge before and after grinding a known tonnage of materials. With new balls sample of given size can be weighed before and after grinding a given tonnage and, assuming uniform wear per unit of ball surface, the total charge wear can be estimated.
My experience for the past 24 years in ball mills is that, the blow holes in the balls in CAST Hyper steel ball, contribute to wear and deformation of balls. But this wear rate is less in FORGED BALLS. Normal friction wear due to rubbing, tumbling, fall of balls is mostly due to hardness of ore ground.