Comparison of grinding kinetics between a typical ball mill and a ball mill fitted with a breaker plate

Abstract

A ball mill with a breaker plate and a similarly sized typical ball mill without a breaker plate were studied in order to determine if the breaker plate can improve mill grinding efficiency. At hypocritical frequencies of rotation, it was found that the ball mill with the breaker plate grinds more efficiently, and especially so for particles larger than 1 mm. The breakage function for the ball mill with the breaker plate was found to be non-normalized, while that for the ball mill without the breaker plate was close to normalized. First-order kinetics was followed by both mills.