Comminution of Irregularly Shaped Particles by Slow Compression: Interpretation of the size distributions of progeny particles as mixed distributions

Abstract

AbstractThe evaluation of particle size distributions of comminution products often shows that the experimental distributions cannot be represented by one of the well‐known functions (GGS, RRSB, log‐normal distributions). Although in some cases a more or less satisfactory approximation to one of these functions can be made, a physically meaningful interpretation is generally impossible. Using the frequency curve, it can often be shown that mixed distributions, represented by several statistical assemblies, do exist. In this paper the progeny size distributions of quartzite formed by slow compression comminution of single grains and particle beds as well as of the comminution products of a roller mill are interpreted as superpositions of several statistical assemblies each of which can be represented by a truncated log‐normal distribution.