Comminution and Simulation Using Rod and Ball Mills

摘要

This report presents the results of an investigation of comminution in tumbling mills. Five topics involved with ball and rod mill grinding kinetics were studied and the results analyzed in terms of phenomenological size reduction and transport models. Continuous rod mill grinding was found to be characterized by high Peclet numbers which permit simulation to be carried out by several methods. The dry-batch ball mill grinding of mineral mixtures showed that the breakage rates of the components were composition-dependent but time dependent and were normalizable with specific energy.