Abstract:Objective: Analyze the movement of the material particles on the linear vibrating screen to optimize the mechanism of the linear vibrating screen. Methods: Based on the discrete element method, the EDEM software is used to simulate and analyze the movement of the material particles on the linear vibrating screen. In response to the stacking angle, the discrete element simulation parameters of the simulated material particles were calibrated in the form of batch processing. The SolidWorks software was used to establish the three-dimensional model of the linear vibrating screen, and the material falling height on the screen surface and the shape and size of the material particles were used as Variable. Taking the smoothness of the material particles on the screen surface as an indicator, through simulation, observed the movement speed and position distribution of the material particles on the drying screen surface. Results: The velocity distribution of the single spherical particles was relatively large. After reaching the stable stage of vibrating screening, the velocity distribution of the single spherical corn particles was relatively stable, and the particle beating phenomenon was significantly reduced. The velocity distribution of the double-spherical corn particles was relatively small, and the position of the double-spherical corn particles fluctuated more obviously after reaching the stable stage of sieving. The speed of double-spherical corn particles on the vibrating screen was significantly lower than that of single-spherical corn particles, and single-spherical corn particles with different falling heights had a certain effect on the vibrating screen. Conclusion: In the design process of linear vibrating screening, different heights and different particle shapes have a greater impact on the screening efficiency. Based on the discrete element method, the vibrating screening of materials can be effectively analyzed.