Abstract：A self-designed horizontal planetary ball mill was employed to study the grinding characteristics and mechanism of steel slags and cement clinkers. The results show that the particle size distribution of ground powders meets Rosin-Rammler-Bennet equation. The grinding process of steel slags and cement clinkers can be described by first-order Kapur function. The grinding rate of steel slags is lower than that of cement clinkers. Under the experimental conditions, the fragmentation style of steel slags is mainly the fractional fragmentation comparing with that of cement clinkers. The influence of steel slags feeding size on the product probability is larger. The steel slags can be pre-crushed to those with particle size of 1.7 mm to improve the grinding efficiency.

Keyword: planetary mill; particle size distribution; grinding dynamics; crushing mechanism

中图分类号：TD453 文献标志码：A

文章编号：1008-5548（2014）01-0026-04

DOI:10.3969/j.issn.1008-5548.2014.01.006

收稿日期：2013-05-20， 修回日期：2013-06-18，在线出版时间：2014-02-24。

基金项目：国 家 重 点 基 础 研 究 发 展 计 划 （ 973 计 划 ） 项 目 ， 编 号 ：2009CB623100。

第一作者简介：董海（1988—），男，硕士研究生，研究方向为材料工程及粉磨设备。 E-mail：dhdapao@njut.edu.cn。

通信作者简介：叶旭初（1957—），男，教授，博士生导师，研究方向为粉体加工、计算机模拟。 E-mail：yexuchu@njut.edu.cn。