LI Hongcheng1 ， DONG Weimin1 ，ZHAO Dehua2 ， KANG Guirong2
（1. Faculty of Mechanical and Electrical Engineering， Kunming University of Science and Technology， Kunming 650093； 2. Northern Copper Co. Ltd. ，Yuncheng 043700， China）
Abstract：To investigate the influencing mechanism of mineral particle shape on ball mill grinding operation,based on discrete element method,the grinding process in ball mill was simulated by the mineral particle model of sphere as well as regular tetrahedron and parallelepiped condensed by spherical particles.The effect of mineral particle shape on movement types,collision forms and grinding efficiency was analysed.The results show that mineral particle shape has a great influence on grinding in ball mill.Under the same conditions,the collision energy of spherical particles is maximal,the second is regular tetragonal particles,the third is parallelepiped particles.
Keywords：discrete element method;mineral particles shape;ball mill;grinding performance
中图分类号：TD453 文献标志码：A
文章编号：1008-5548（2013）02-0070-04
DOI：10.3969/j.issn.1008-5548.2013.02.017
收稿日期：2012-09-06，修回日期：2012-11-28。
第一作者简介：李鸿程（1987—），男，硕士研究生，研究方向为矿冶、碎磨设备设计与研究。 电话：13669751559，E-mail ：txyjywfc@163.com。
通信作者：董为民（1965—），男，教授，硕士生导师，研究方向为机械设计 与 制 造 、 机 电 装 备 集 成 开 发 。 电 话 ：13577178707， E-mail ：kgjd2007@yahoo.cn。
