A useful general two-mill circuit model

Abstract

A circuit is proposed which consists of two mills, four classifiers and three stream splitters. It is shown that this circuit reduces to a number of simpler circuits of industrial interest. A program was written to compute the steady-state performance of this general circuit assuming first order mill and classifier models. The overfilling correction was appropriately incorporated. This program enables the effect of different ways of connecting two mills to be investigated as a function of make-up feed size distribution and desired product specifications, for given mill and classifier models.