含锌电炉粉尘处理的扩大性实验  

Expanding Experiment of Treatment for EAF Dust Containing Zinc

作　　者：伍成波[1] 杨辉[1] 张丙怀[1] 马丁[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《中国冶金》2007年第5期52-56,共5页China Metallurgy

摘　　要：分析研究了运用配碳球团的直接还原技术处理的电炉粉尘，并完成了实验室扩大性实验；得到了还原焙烧法的合理工艺条件，即碳过量系数为1．2，还原温度为1150℃，料层厚30mm，加热时间60min。还原后的球团为半金属化球团，其ω（TFe）为50％左右，最高可达54．7N；金属化率60％～70％，最高可达88％；收集的粉尘含氧化锌达90％以上，球团中锌的还原挥发率大于90％，说明用配碳球团的直接还原技术处理含锌电炉粉尘是成功的。Electric arc furnace （EAF） dust with carbon-containing pellets direct reducing technology was studied and expanding experiment in laboratory was achieved. The received optimum parameters were： excess coefficient of carbon 1.2, reduction temperature 1 150℃, anticipate thickness 30 mm, reduction time 60 min. The treated pellets were semi-metallic pellet, in which total Ferrum content was about 50%, the best is 54.7%, metallic ratio was about 60%-70% and the best is 88%. zinc oxide content in the collected zinc oxide powder exceeded 90%, which shows it succeeded to recycle electric arc furnace（EAF） dust using carbon-containing pellets direct reducing technology.

关 键 词：电炉粉尘 球团 还原 氧化锌 

分 类 号：X701.2[环境科学与工程—环境工程]