The structure of vertical screw conveyor is closed,and the conveying particle quantity is too large,so it is difficult to study the internal particle of conveyor.DEM is used to establish the transport model and particle model of vertical screw conveyor.According to the multi-scale structure,the vertical screw conveyor can be divided into macroscopic scale structure,mesoscopic scale structure and microscopic scale structure.Multiscale structure analysis of axial velocity of rubber particles with different pitch and cross section was carried out.It is proved that the particle axial velocity distribution of each scale structure in the vertical screw conveyor is consistent,that is,the macro scale structure can be replaced by the micro scale structure,which provides a theo-retical reference for the research of the vertical screw conveyor.
关键词
垂直螺旋输送机/离散元法DEM/多尺度结构/平均轴向速度
Key words
Vertical Screw Conveyor/Discrete Element Method DEM/Multi-Scale Structure/Average Axial Vel-ocity
维普
万方数据