Critical gas velocity required for complete suspension of solid particles in solid-suspended bubble column with draught tube

摘要: The critical gas velocity required for complete suspension of solid particles was studied experimentally in a solid-suspended bubble column with draught tube. It shown that the increases increasing terminal single particle, concentration, liquid surface tension, diameter distributor and density difference between liquid, decreases viscosity. Based on these observations, an empirical equation is proposed applicable to columns diameters 0.1-0.3 m.