【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1 150℃,料层厚30 mm,加热时间60 min。还原后的球团为半金属化球团,其w(TFe)为50%左右,最高可达54.7%;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。更多还原

【Abstract】 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 1150 ℃,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.更多还原