Optimization analysis of main parameters of double-layer linear vibrating screen based on discrete element method
In order to study the influence of different working parameters of double-layer linear vibrating screen on screening performance,taking mineral particles as the research object,the simulation calculation of double-layer linear vibrating screen was carried out by using discrete element software,and the influence of vibration frequency,screen material and mass fraction of difficult-to-screen particles on screening performance was analyzed.Then,the dynamic screening efficiency and the velocity of the particles on the screen surface were used as the evaluation indexes to analyze the influence of various research factors on the screening efficiency.The results showed that the influence of vibration frequency on the screening efficiency of each layer of double-layer linear vibrating screen increased first and then decreased and the screening process of the upper screen affected the screening effect of the lower screen.When the mass fraction of difficult-to-screen particles was 10%,the screening effect was better.The polyurethane screen had the largest particle flow velocity and the highest screening efficiency,followed by stainless steel screen,and the rubber screen was the worst.When the vibration frequency was 16 Hz,the screen material was polyurethane,and the mass fraction of difficult-to-screen particles was 10%,the screening efficiency of the double-layer linear vibrating screen was higher.
discrete element methodvibrating screenscreening efficiencyvibration frequency
NETL
NSTL
万方数据
