文档介绍：
富锰渣含碳压块自还原过程中金属锰挥发
机理及抑制措施研究#
薛正良,张波,邹峰,熊锐*
5
10
(武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北,武汉 430081)
摘要:对富锰渣含碳压块自还原过程中金属 Mn 的挥发进行了试验研究,并通过对还原后的
试样进行金相检测和 XRD 物相分析,探讨了 CaF2 和 B2O3 的加入对挥发产生的影响。研
究结果表明:金属 Mn 的挥发速率在还原的前 3min 最大,而后随着液渣量的增加而逐渐降
低。CaF2 的加入使得炉渣熔点降低,还原速率加快,液渣生成的时间缩短,从而抑制了金
属 Mn 的挥发。而 B2O3 的加入阻止了还原反应的进行及还原出来的金属 Mn 聚集,反而使
得压块中金属 Mn 的挥发率增加。
关键词:钢铁冶金;富锰渣含碳压块;自还原;金属锰挥发
中图分类号:
15
Study on volatility mechanism and suppression measures of
Mn in the process of self-reduction of manganese-rich slag
briquet containing carbon
20
25
30
35
XUE Zheng-liang, ZHANG Bo, ZHOU feng, Xiong rui
(Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,
Wuhan University of Science and Technology, Wuhan 430081,China)
Abstract: : The volatility of Mn was studied in the process of self-reduction of manganese-rich
slag briquette containing carbon, and metallographic and XRD were utilized to analyze the
samples after reduction. The impact of the addition of CaF2 and B2O3 on the volatile was
discussed. The results show that the volatilization rate is the largest in the first 3min of reduction
process, and gradually reduced with the increase the quantity of liquid slag. The addition of CaF2
making the slag melting point reduced and the reduction rate accelerated. So liquid slag generated
in a shorter time, and the volatilization of Mn