Mechanism study of ultrasonic-assisted screening of fine powder materials

The strong adsorption characteristics of fine power materials give rise to problems such as material conglomeration, blockage sieve mesh and low process efficiency during screening, thus necessitating studies on processes like ultrasonic-assisted powder screening. In this study, based the Derjaguin-Landau-Verwey-Overbeek theory, an energy balance model that takes into account viscous force ultrasonic vibration was first established; secondly, established breaking up aggregates due collisions between them screening depends forces aggregates; thirdly, particle agglomeration dispersion studied via EDEM simulation; finally, results experiment were used verify mechanism by which auxiliary prevents adsorption. showed can effectively scatter particles, improve efficiency.