Raising the Efficiency of Coagulation of Dispersed Particles by the Action of Ultrasonic Vibrations on Gas-Dispersed Flows in Inertial Dust Collectors

Abstract

The authors have presented results of experiential investigations of the process of ultrasonic coagulation of dispersed particle in a swirling flow. The investigations were conducted using the proposed and developed test bed implementing a two-stage removal of fi ne particles. At the first stage (agglomeration), the formation of a swirling flow and the ultrasonic pre-coagulation of fi ne particles are ensured. At the second stage, high-efficiency trapping of particles preformed at the first stage is attained using a cyclone. As a result of the experimental investigations, the authors have established the prospects of using a two-stage removal of fi ne particles and have revealed the optimum conditions of ultrasonic action on a swirling gas-dispersed flow that ensure an enlargement of 4.5 times of particles in the range of RM2.5 particle sizes which is the most hazardous for humans.