RAISING THE EFFICIENCY OF COAGULATION OF DISPERSED PARTICLES BY THE ACTION OF ULTRASONIC VIBRATIONS ON GAS-DISPERSED FLOWS IN INERTIAL DUST COLLECTORS

The authors have presented results of experiential investigations of the process of ultrasonic coagulation of dispersed particle in a swirling fl ow. The investigations were conducted using the proposed and developed test bed implementing a two-stage removal of fi ne particles. At the fi rst stage (agglomeration), the formation of a swirling fl ow and the ultrasonic pre-coagulation of fi ne particles are ensured. At the second stage, high-effi ciency trapping of particles preformed at the fi rst 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 fl ow 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.
   
Author:  V. N. Khmelev, V. A. Nesterov, and A. V. Shalunov
Keywords:  ultrasound, gas purifi cation, coagulation, acoustic fi eld, fractional effi ciency
Page:  1335