中文摘要：

将转炉细灰用于转底炉直接还原含碳球团造球试验.结果表明,转炉细灰对提高球团抗压强度和落下强度有一定效果,但要想获得理想的球团强度,须达到一定的添加量;添加一定量的转炉细灰,可以提高含碳球团的还原速率和金属化球团的TFe、MFe含量;用转炉细灰调节渣相碱度,在还原温度为1450 ℃时可实现渣铁良好分离,其脱硫效果好于同碱度下的石灰石.

英文摘要：

Experimental research on direct reduced carbon‐contained pellets using BOF fine dust in RHF was presented . Results show that BOF fine dust is effective in improving the compressive strength and dropping strength of composite pellets ,but the ideal pellet strength can be achieved until BOF fine dust reaches a certain addition .The addition of BOF fine dust can accelarate the reduction of carbon‐contained pellets and increase the contents of TFe and MFe in the metallized pellets .Through adjusting the slag alkalinity by BOF fine dust ,the slag‐iron composite can be effectively separated at the reduction temperature of 1450 ℃ ,and the desulfurization effect of BOF fine dust is better than that of limestone at the same basicity .