Analysis of the Results of a Marked-Ball Test in Relation to Theories of Ball Wear in Rotary Mills

摘要

Theories of ball wear are formulated, and it is shown that, in terms of such theories, the difficulties associated with the results of a marked-ball test (so-called because the different types of balls carry distinguishing marks) can be interpreted and resolved. This type of test is contrasted with the conventional test that is used in the evaluation of grinding balls. It is demonstrated that, in a marked-ball test, several types of ball can be evaluated simultaneously at a much lower cost, and that the results can be used for the estimation of ball consumption in a mill and for the evaluation of the cost-effectiveness of the grinding balls.