转炉钢渣重熔还原的尾渣安定性研究  

STUDY ON STABILITY OF CONVERTER STEEL SLAG AFTER REMELTING AND REDUCING TREATMENT

作　　者：张艺伯[1,2] 朱荣[2] 吴铁[3] 韩志强[1] 胡天麒[1] 张硕[1] 

机构地区：[1]中冶建筑研究总院有限公司,北京100088 [2]北京科技大学冶金与生态工程学院,北京100191 [3]环境保护部环境工程评估中心,北京100012

出　　处：《环境工程》2015年第12期163-166,共4页Environmental Engineering

摘　　要：目前我国钢渣综合利用仍处于较低水平,钢渣中的游离氧化钙导致体积安定性不良,影响其在建筑材料中的应用。本文提出采用还原法分离钢渣中的铁元素,同时利用硅质、铝质等辅助组分调整了尾渣的组成。实验结果表明:钢渣含铁量降低促使其化学组成显著变化,硅质、铝质添加剂对重熔钢渣的安定性有改善作用。Steel slag is the main residue from steel production process and hasn＇t been reutilized effectively yet. Steel slag often shows undesirable volume change due to high free-Ca O content,restricting its application in construction materials. A novel method is proposed and conducted in this study,in order to reduce iron oxide,modify the chemical compositions of steel slag by additive containing silicon or aluminum,and enhance the stability of slag through melting reaction. Results showed that chemical composition performed significant change when iron content was reduced, and the tested addictive materials strenghthened the stability of slag.

关 键 词：钢渣 重熔 还原 安定性 

分 类 号：X757[环境科学与工程—环境工程]