MIXING OF PARTICLES IN A SPOUTED BED.

Abstract

It has been suggested that the spouted bed could be applied to the manufacture of HTGR fuel. Comparing the experimental data with the calculated results, it was found that: (a) the mixing of particles in the bed can be satisfactorily described with this model, provided that a suitable correction is added to the quantity of particles present in the spout to account for the existence of mixing in the annulus, whereas the model assumed piston flow; (b) the upper edge of the ingress zone of particles from the spout into the annulus is located in the conical part of the bed. Increasing the flow rate of spouting air shortened the cycle time of particles, while the mixing rate within one cycle was not affected to any significant extent by changes in flow rate.