Industrial test of two different grades of grinding ball can be done either by dumping the factory and loaded with a new initial charge, or by completing the new quality on the old charge until the initial load is completely moved. Of course , the timing of different test and costs are associated with each solution. Before the test the behavior of the new load data can be accepted as representing the time required to completely displace the old charge ( washout period ) is when the new tax will reach equilibrium, must be determined.
In order to calculate the time required for each test solution , the right to use grinding media must be considered.
Over the years , there have been many investigations to determine the appropriate mathematical formula, or the right to wear, which accurately describes the wear behavior of grinding elements in rotary mills . For the law of wear basic equation can be viewed at the following:
W = weight of the grinding ball [g]
T = time [s]
K = constant proportional
D = grinding ball diameter [ mm ]
n = wear rate
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