LUO Zhaowei^a， LIU Xuedong^a,b， LIU Wenming^a,b， CHEN Cheng^a， CUI Shuqi^a， TAN Zhichao^a

(a. School of Mechanical Engineering；b. Jiangsu Key Laboratory of Green Process Equipment, Changzhou University, Changzhou 213164, China)

Abstract: Discrete element method (DEM) was used to simulate their motion characteristics of cylindrical and spherical particles on the surface of conical distributor which was slotted before and after. Velocity and trajectory of the particles on the surface of conical distributor were studied. The effects of particle shape, diameter and rotational speed of the distributor being slotted before and after on the motion were studied. The results show that horizontal and vertical velocity of particles out of the distributor increase with the increase of rotating speed and diameter of the distributor. Horizontal and vertical velocity of the cylindrical particle is slightly faster than that of the spherical particle. Rate of the through-slot particle decreases with the increase of the rotational speed of the distributor and increases with the increase of diameter of the distributor. Besides, rate of the cylindrical through-slot particle is higher than that of the spherical particle. Horizontal and vertical velocity of particle out of the slotted distributor is higher than those of none-slotted one.

Keywords: cylindrical particles; spherical particles; conical distributor; motion characteristics; numerical simulation

中图分类号：TQ050.3

文献标志码：A

收稿日期： 2019-01-02，修回日期:2019-01-22，在线出版时间：2019-01-24 18:09。

基金项目：中国石化重点研发计划项目，编号：417002。

第一作者简介：罗召威(1993—)，男，硕士研究生，从事密相装填设备的研发。E-mail：563163686@qq.com。

通信作者简介：刘雪东(1965—)，博士，教授，硕士生导师，研究方向为能源化工装备结构创新与优化、粉体工程设备与技术。E-mail：xdliu-65@126.com。