Abstract: Granulated blast furnace slag powders were prepared by stirring mill and ball mill. Granule morphology of different granulated blast furnace slag particles in various grinding stages were researched by SEM sample preparation technology. The results indicate that as the prolong of the grinding time, the particle shape index, flatness, angularity and surface roughness are all decreased, the roundness is increased. There is great difference between the micro-appearance of granulated blast furnace slag particles prepared by different grinding methods. When the grinding time of ball mill and stirring mill are the same, the morphology of granulated blast furnace slag particles prepared by stirring mill is better than that of ball mill.

Keywords: blast furnace slag powder; grinding；micro-appearance

中图分类号：TQ172.63        文献标志码：A

文章编号：1008-5548(2014)01-0063-05

DOI:10.3969/j.issn.1008-5548.2014.01.015

收稿日期： 2013-05-29， 修回日期：2013-07-08，在线出版时间：2014-02-24。

基金项目：江苏省新型环保重点实验室开放课题基金项目， 编号：AE201004。

第一作者简介：叶涛（1972—），女，博士，副教授，研究方向为粉体工及电子显微技术。 E-mail：whyetao@hotmail.com。