Component modification of steel slag in air quenching process to improve grindability

来源期刊：中国有色金属学报(英文版)2009年增刊第3期

论文作者：宗燕兵 苍大强 甄云璞 李宇 白皓

文章页码：834 - 839

Key words：steel slag; component modification in-process; air quenching; grindability; particle distribution

Abstract: A new solution called component modification in-process was introduced to the difficult grinding of air quenching steel slag by a series of experiments. The results show that the fly ash added into the molten steel slag before air quenching can more effectively improve the slag’s grindability than milltailings, which is the other modification agent tested under the same conditions. The role of fly ash is strengthened as its proportion increases, although the degree of promotion is gradually reduced. As a result of the reaction between fly ash and steel slag at high temperature, some new mineral phases and vitreous bodies with fine grindability promote the slag grinding easily. This work is helpful to making a comprehensive utilization of steel slag and maximize its economic efficiency in China.

基金信息：Program for Changjiang Scholars and Innovative Research Team in University of China (“PCSIRT”)
the Research Fund for the Dectoral Program of Higher Education of China