韶钢炼铁高Al_2O_3炉渣的冶炼特点

Iron-making with slag containing high Al2O3 at SISG

通过对高Al_2O_3炉渣来源的分析,提出控制炉料Al_2O_3的主要措施。当Al_2O_3含量达到16％-18％的情况下,高炉采用高MgO、低碱度的造渣制度后,炉渣流动性改善,炉况顺行,同样获得较高的技经指标。

By tracing the source of the blast furnace (BF) slag containing high Al2O3, measures were then proposed to control the Al2O3 contents in BF raw charges. It was found that when the Al2O3 content of the BF slag reached 17% -18% , the slag fluidity could be, by employing a slag containing high MgO and possessing low alkalinity, increased markedly , thus resulting in a smooth operation of the BF and a higher technical and economic index.