DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhen
ISBN Print: 1-56700-162-9
THE EFFECT OF RHEOLOGICAL PROPERTIES OF A LIQUID ON SUSPENSION AGITATION
SINOPSIS
The paper contains a review of existing theories and experimental methods used for the determination of critical impeller speed required for lifting solid particles off the vessel bottom. In the present study this speed is determined for suspension in power-law liquids. It has been shown that the particle lift-off in carboxymethylcellulose sodium salt solutions (CMC) is more difficult than in clear water. It follows from the fact that the settling velocity of the particles increases with the increase of the shear-thinning properties of a liquid. The addition of the sodium chloride stabilized both the carboxymethylcellulose sodium salt solution and the suspension properties.