富铁渣综合利用技术研究

摘要

In this paper, one certain slag enriched with iron was tested with reduction roasting process, and the effects of roasting temperature, reaction time and coal consumption on the iron grade in the final slag were tested, and the optimal conditions was decided. Reduction roasted under 1 100℃, the iron content in the final slag can be enriched to 77%, and the volatilization ratio of zinc is more than 95%.%针对锌冶炼过程中产出的富铁渣进行了还原焙烧工艺研究，考察了焙烧温度、焙烧时间、煤粉加入量等因素对渣中铁含量的影响，确定了最佳工艺条件。在还原温度1100℃、焙烧时间40 min、粉煤加入比例15%条件下，渣中铁含量可达到77%以上，锌挥发率95%以上。