直流钢包炉中空电极喷吹Ar-CO_2对钢水温度的影响  

Influence of Hollow Electrode Argon and Carbon Dioxide Co-Injection on Temperature of Molten Steel During Direct Current Ladle Furnace

作　　者：张慧书[1] 战东平[1] 姜周华[1] 陈兆平[2] 沈海军[2] 张戈[2] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]宝山钢铁股份有限公司宝钢研究院,上海201900

出　　处：《工业炉》2009年第5期1-4,共4页Industrial Furnace

基　　金：国家自然科学基金资助项目(50804009);国家高技术研究发展计划(863计划)资助项目(2009AA03Z530)

摘　　要：在100kg多功能直流钢包炉(DC-LF)上,通过LF中空石墨电极喷吹Ar-CO2混合气体进行精炼低碳钢的实验研究。实验结果表明,与实心电极冶炼相比,通过LF中空石墨电极喷吹Ar和Ar-CO2气体后,熔池的升温速率明显加快。喷吹Ar精炼炉次的平均升温速率是实心电极精炼时的1.59倍,喷吹5%～20%CO2体积分数的Ar-CO2混合气体时的最小平均升温速率是实心电极精炼时的3倍,最大达到5.51倍。通过LF中空石墨电极喷吹Ar或Ar-CO2混合气体时,电弧电流不变,电压降低。The argon and hydrogen co-injection experiments are carried out with low carbon steel melts of 100 kg in a multi-function direct current ladle furnace（DC-LF） equipped with a hollow graphite electrode. It is shown that the heating rates of the heats with Ar or Ar-CO2 injection are higher than that of the normal solid graphite electrode heat. The average heating rate of the heat with argon injection is 1.59 times than that of the normal solid graphite electrode heat. The minimal average heating rate of the heat with Ar-CO2 co-injection, which CO2 volume fraction is 5%-20%, is 3 times than that of the latter, and the maximum is 5.51 times. When Ar or Ar-CO2 injection is injected into LF, the electric current isn＇t change, but the voltage is lower.

关 键 词：直流钢包炉 炼钢 中空电极 吹气 二氧化碳 

分 类 号：TF762[冶金工程—钢铁冶金]