Determination of parameters for wet-grinding model in perl mills

Abstract

The paper presents the method of obtaining a model of the kinetic grinding process in perl mills. After carrying out several grinding tests with varying parameters in two laboratory mills of 1 × 10 −3 and 6 × 10 −3 m 3 volume, the parameters of the specific rate of breakage S i and the cumulative parameters of the primary breakage function B t,j were calculated. Those values were then related to the particle size. Synten® dyestuff in water suspension having particles sized up to 22 μm was used for the grinding tests with addition of dispersing agents. Measurements of particle size were carried out by means of particle counter.