【摘要】 利用铁矿石还原试验装置,在900、1000、1100℃三个温度水平,变化混合气体中H2含量,针对铁矿石还原中较难还原的浮氏体还原阶段进行试验。结果表明,随着还原气体中H2比例的增加,矿石的还原速率大大加快,但是当H2的比例超过50%时,H2的增加对矿石还原速率的促进效果逐渐减弱;(CO+H2)(/CO+CO2+H2)为0.75,H2(/CO+H2)为0.3的条件下,发生水煤气反应,导致900℃180min的还原率比1000℃180min的还原率要高。更多还原

【Abstract】 At 900,1000 and 1100℃,by means of changing hydrogen content of mix gas and using the facility of iron ore reduction,the experiment of wustite reduction which is difficult in iron ore reduction.The results indicate the reduction of iron ore quickens greatly along with increase of H2 in the reduction gas.But when the content of H2 exceeds 50%,the effect of increase of H2 is gradually lower.When the experiment temperature is 900℃ and 1000℃,(CO+H2)/(CO+CO2+H2) is 0.75,and H2/(CO +H2)is 0.3,water gas shift reaction carries through,so the reduction rate at 900℃ in 180 minutes is higher than that of 900℃.更多还原