Sound Assisted Fluidized Bed and its Effects on Micro Particles

Abstract

The aim of this research work is to improve the quality of fluidization of fine powders (cohesive powder) with the help of sound assisted fluidization. The work presents the main results obtained in the field of sound assisted fluidization of fine particles. Our aim is to emphasize on the role of acoustic fields in enhancing the gas-solid contact efficiency, we have characterized the fluidization behavior of bentonite powders in terms of pressure drops, minimum fluidization, bed expansion, and velocity as affected by acoustic fields of different intensity and frequency. Remarkable effect was noted after application of sound intensity with decrease in minimum fluidization velocity and with good bed expansion.