Simulation of the screening process on a circularly vibrating screen using 3D-DEM

作     者：Zhao Lala Zhao Yuemin Liu Chusheng Li Jun Dong Hailin 

作者机构：School of Mechanical and Electrical Engineering China University of Mining ＆ Technology Xuzhou 221116 China Key Laboratory of Coal Processing and High Efficient Cleaning ＆ Utilization of Ministry of Education Xuzhou 221008 China School of Chemical Engineering and Technology China University of Mining ＆ Technology Xuzhou 221116 China 

出 版 物：《Mining Science and Technology》 (矿业科学技术（英文版）)

年 卷 期：2011年第21卷第5期

页      面：677-680页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081802[工学-地球探测与信息技术] 08[工学] 081402[工学-结构工程] 0818[工学-地质资源与地质工程] 081304[工学-建筑技术科学] 081602[工学-摄影测量与遥感] 0816[工学-测绘科学与技术] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：support from the Innovative Research Groups of the National Natural Science Foundation of China (No. 50921002) the Natural Science Foundation of Jiangsu Province of China (No. BK2010002) the Fundamental Research Funds for the Central Universities (Nos. 2011QNA10,2010QNB17) the China Postdoctoral Science Foundation (No.20110491485) 

主　　题：Particulate materialsDiscrete Element MethodCircular vibrating screeningNumerical simulation 

摘      要：A numerical study of the motion particulates follow along a circularly vibrating screen deck was done using the three dimensional Discrete Element Method (DEM). The motion of the particles was analyzed. The effects of vibration amplitude, throwing index, and screen deck inclination angle on the screening process are discussed. The results show that the average velocity of the particles increases along the lon- gitudinal direction of the deck. The screening efficiency is highest when the vibration amplitude, throw- ing index, and screen deck inclination angle are 3-3.5 mm, 2.7 and 15°, respectively. This work is helpful for developing a deep understanding of particle motion and for optimizing screen separator designs.