DEM simulation of particle flow and separation in a vibrating flip-flow screen

Vibrating flip-flow screens (VFFS) with stretchable polyurethane sieve mats have been widely used in screening fine-grained materials recent years. In this work, the discrete element method (DEM) is to study process VFFS explain particle flow and separation behavior at scale. Unlike traditional vibrating screens, for VFFS, amplitude response of each point on elastic mat different everywhere. This measures kinematics under conditions such as stretched lengths material loads. To establish model a DEM simulation, continuous discretized into multiple units, displacement signal unit tested analyzed by Fourier series. The series analysis results are setting parameters motion. way, movement approximately simulated, produced. Through different-sized particles studied, reasonability simulation verified pilot-scale experiment. present demonstrates potential processes VFFS.