冶金尘泥在转炉中的应用技术研究与实践  

Technical research and practice of metallurgical dust recycling in converter

作　　者：万雪峰[1] 曹东[1] 高学中[2] 于淑娟[1] 朱晓雷[1] 郭庆涛[1] 

机构地区：[1]鞍钢股份有限公司技术中心,辽宁鞍山114009 [2]鞍钢股份有限公司炼钢总厂,辽宁鞍山114021

出　　处：《中国冶金》2014年第11期35-41,共7页China Metallurgy

摘　　要：在实验室对冶金含铁尘泥在冶炼工序实现直接回收利用的热力学和动力学条件进行了研究,得出C-FeO反应的工况条件必须控制在温度大于950℃,金属化率随加热温度的升高和加热时间的延长而增加,并指出转炉是添加铁碳球的最佳位置。同时,开展转炉加铁碳球工业验证性试验,得出铁碳球对转炉终渣TFe含量没有显著影响,平均金属铁收得率约50%,加铁碳球的经济价值取决于废钢和铁水的价格差、铁碳球加入量及S含量3个主要因素。Thermodynamics and dynamics condition of direct recycling for the metallurgical ferruginous dust in smel-ting process has been studied in the laboratory.It was concluded that temperature of the C-FeO reduction reaction in working conditions must be controlled above 950 ℃,and the metallization rate in metallurgical ferruginous dust in-creased with the increase of heating temperature and the extension of heating time,and it was pointed out that the optimum position adding metallurgical ferruginous dust pellet was converter.At the same time,the industrial pro-ving trials adding metallurgical ferruginous dust pellet into converter have been carried on It was concluded that met-allurgical ferruginous dust pellet has no remarkable effect on TFe content in slag at blowing end,and the average metallization rate could reach to about 50%.The economic value of adding metallurgical ferruginous dust pellet was depended on three major factors including the price margin between hot metal and scrap,the quantity of adding met-allurgical ferruginous dust pellet and the sulfur content in metallurgical ferruginous dust pellet.

关 键 词：冶金尘泥 转炉 金属化率 

分 类 号：X757[环境科学与工程—环境工程]