Abstract:
In this study the applicability of a batch press to predict the energy
consumption and particle size distributions for medium-pressure
roller presses was investigated. The relationships between energy
consumption, feed size and product size are discussed with
reference to Hukki’s interpretation of Bond’s and Rittinger’s laws,
as well as the particle size parameter used. It was found that the
comminution laws have limited utility for the characterization of the
performance of the medium-pressure roller crushers or the batch
press used, and also depend on the particle size distribution
indicator used. It was also found that the batch press is not a
suitable simulator for medium-pressure roller mills as it was not
able to predict the energy requirements, or to predict the size distributions
that would be obtained for the ores evaluated.
