AN IMPROVED METHOD FOR DETERMINING RHEOLOGICAL PARAMETERS OF SUSPENSION - STATISTICAL APPROACH

In order to determine the rheological parameters of settling fluid mix tures and suspensions, a helical screw impeller with a draught tube of our own design has been constructed. Based on the concept of equivale nt radius of the screw impeller, an improved numerical procedure for d etermining the consistency coefficient and the flow behaviour index us ing measurements of readily observed quantities (moment per unit lengt h and angular velocity of impeller) is presented. The validity and app licability of the measuring system for determining rheological paramet ers of suspensions, specifically molasses containing suspended particl es, was verified from the statistical point of view.