Evaluation of hydrodynamics quality in the use of gas distribution devices for non-uniform fluidization

Abstract

Intensification of transfer processes during dehydration and granulation processes of liquid multicomponent systems containing components of mineral and organic origin using the fluidization technique significantly depends on the method of interaction of gas coolant and granular material. This is especially true when obtaining granular humic organic-mineral fertilizers in a fluidized bed [1-5]. In these works is established that intensification of processes of heat and mass transfer at granulation of liquid heterogeneous systems can be reached at realization of a jet-pulsation mode of fluidization to the auto-oscillating mode [2-5] due to the special design of the gas distribution device (GDD), Figure 1 [5] without the use of mechanical pulsators.