The performance of ball mills is very sensitive to the volumetric mill filling which influences grinding media wear rates, throughput, power draw, and product grind size. A pilot plant investigation with an overflow mill discharge has been conducted. For a given throughput, it seems that the pool size has a major influence on the product grind.
Temperature not only affects the properties of ball mill material but also the grinding performance of grinding materials. The normal temperature of ball mill is high and there are many reasons, such as friction between materials and grinding body and impact between grinding body and liner plate.
The following are factors that have been investigated and applied in conventional ball milling in order to maximize grinding efficiency: a) Mill Geometry and Speed Bond observed grinding efficiency to be a function of ball mill diameter, and established empirical relationships for recommended media size and mill speed that take this factor into account. As well, mills with different ...
Diameter and length of the mill, maximum ball size, ball filling ratio, design of the mill liners, and critical speed of the mill are the main factors affecting the grinding forces. Mill retention time is also another parameter that should be taken into consideration.
meticulous study of the effect of the various system parameters on the performance of ball mills. 2.1 Terms Associaed with Ball Mill Operation 2.1.1 Grindability : Grindability is the number of net grams of screen undersized product per revolution 1. The
The cumulative grinding rate through the size of interest is the identical parameter as the ball mill grinding rate calculated from the functional performance equation. Its maximization is the technical optimization criterion for ball sizing studies.