RHEOLOGY OF GAS-FLUIDIZED BED

Coal dry beneficiation with fluidized beds belongs to dry dense m ediu m concentration . Therheology is im portant for studying the behavior of an object settling in gas fluidized beds . Inthis paper , The viscosity of fluidized beds w as measured using falling spheres . The rheologi cal characteristics of fluidized beds can be described with Bingha m fluid m odel . The efficientviscosity of fluidized beds can be calculated and plastic viscosity and yield stress of fluidizedbed can be obtained by linearly regressing experi mental data . The calculated results are veryagreeable with the experim ental data .