Experimental and numerical study on the acoustic coagulation of charged particles

Coagulation technology is widely used as a dust removal technology pre-treatment. The mechanism of particle coagulation and charging under the coupling of the electric field and the acoustic field is investigated in this paper. The movement law of the acoustic field waveform, sound pressure level and acoustic field flow rate parameters on the particles are analyzed numerically using COMSOL Multiphysics software, and the operating parameters for the best coagulation effect of charged particles are obtained through experimental studies. The results show that the higher the supply voltage, the more the particles are charged and the better the particle coagulation effect. The higher the sound pressure level, the better the particle coagulation effect. The acoustic frequency is not linearly related to the particle coagulation efficiency. An optimal operating parameter is ob-tained. The acoustic and electric field coupling resulted in a particle reduction rate of 0.62 and a significant particle coagulation effect.

Automated summary

This paper investigates the mechanism of particle coagulation and charging under the coupling of electric field and acoustic field. The optimal operating parameters for charged particle coagulation are obtained through numerical analysis and experimental studies. The results show that the higher the supply voltage and sound pressure level, the better the particle coagulation effect. The acoustic frequency is not linearly related to particle coagulation efficiency. The coupling of acoustic and electric fields leads to significant particle coagulation effect.