· Compared with the quartz grinding in a tumbling mill, one result showed [9] that at first order range, a= min1, a= with dry grinding of D= 190 nun, mill volume = 5250 cm3, ball diameter = 26 mm. It is clear that the difference is mainly at value a and the values of S in a stirred mill are more than a magnitude greater than for a tumbling mill. Fig. 3 shows the test result of cumulated ...
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