高炉喷吹铁矿粉工业性试验结果分析  

Analysis of the Results on a Industrial Test by the Injection of Fine Iron Ore into a Blast Furnace

作　　者：车传仁[1] 胡安生[2] 

机构地区：[1]东北大学材料与冶金学院 [2]鞍山钢铁公司炼铁厂

出　　处：《东北大学学报（自然科学版）》1997年第1期59-62,共4页Journal of Northeastern University(Natural Science)

基　　金：国家"八五"科技攻关项目

摘　　要：对鞍钢１０５０ｍ３高炉喷吹铁矿粉的工业性试验结果进行了分析．由于矿粉中氧化铁的氧化作用，在喷矿近１０ｋｇ／ｔ条件下，生铁Ｓｉ含量（质量分数）由０．６３１％降至０．５８４％；硅氧化放热与铁矿粉分解及还原吸热大体相抵，所以喷吹后焦比未见升高；硅氧化放热有利于铁水脱硫，这将部分抵消喷吹后炉缸氧势升高对脱硫的不利影响。The results obtained from a industrial test by the injection of fine iron ore into a blast furnace (1050 m 3) have been studied. Owing to the effect of iron oxide in powder ore the silicon in the hot metal tends to decrease from 0 631% to 0 584% while the injection amount is near 10 kg/t. The amount of the heat released in Si oxidation is almost offset by that absorbed in decomposition and reduction of iron oxide. Therefore the coke rate is not found to be increased by the injection. The exothermic reaction of Si oxidation is advantageous to the desulfurization of hot metal. It will counteract partially the harmful influence of oxygen potential elevation by the injection. As the result,the content of sulfur in hot metal basically remains stable.

关 键 词：高炉冶炼 喷吹 铁矿粉 综合利用 

分 类 号：TF538.6[冶金工程—钢铁冶金]