Using iron concentrate oxidized pellets produced in a certain area of Xinjiang,Φ2.8 m×48 m rotary kiln pilot plant was used to conduct coal based direct reduction experiments,studying the effects of factors such as external carbon content,feeding amount,reduction time,and air supply structure on the reduction effect of iron concentrate oxidized pel-lets.The experimental results show that under the feeding amount of 4 t/h,external carbon ratio of 40％,reduction time of 266 minutes,and the use of multi-point air supply mode with kiln back fan,the metallization rate of metallized pellets can reach 87.55％.
关键词
铁精矿氧化球团/回转窑/煤基直接还原/金属化球团/金属化率
Key words
iron concentrate oxidation pellets/rotary kiln/coal-based direct reduction/metallized pellet/metallization rate
维普
万方数据