【作者】 钟良才； 史迪； 刘崇林； 朱英雄； 陈伯瑜； 赖兆奕；

【Author】 Zhong Liangcai~(1*),Shi Di~1,Liu Chonglin~1,Zhu Yingxiong~1,Chen Boyu~2,Lai Zhaoyi~2(1.Institute of Ferrous Metallurgy, Northeastern University,Shenyang 110004,China;2.Steelmaking Plant,Fujian Sangang,Sanming 365000,China)

【机构】 东北大学钢铁冶金研究所； 福建三钢炼钢厂；

【摘要】 在实验室建立复吹转炉吹炼过程的物理模型,研究了不同底枪布置对转炉熔池混匀的影响。研究结果表明,底枪支数和底枪布置方式对转炉熔池搅拌有重要的影响,合适的底枪支数采用非对称相对集中布置有利于转炉熔池的搅拌混匀。对于14°喷孔夹角的氧枪喷头,氧枪枪位对复吹转炉熔池搅拌混匀有一定的影响,低枪位有利于熔池搅拌和混匀。实际应用结果表明,采用非对称相对集中的底枪布置,转炉吹炼终点技术指标得到较大的改善。更多还原

【Abstract】 A top and bottom combined blown converter model for blowing process was set up in laboratory to investigate influence of bottom tuyere configurations on bath mixing.The investigative results showed that bottom tuyeres and their arrangement patterns have important effect on bath stirring.Asymmetric collected bottom tuyere arrangements were favor to bath stirring and mixing. Definite influence of height of top lance with 14°included angle of nozzles on bath stirring and mixing was found and lower lance heights were able to improve the bath stirring and mixing.It was shown from the application in an industrial converter with the asymmetric collected bottom tuyere arrangement that the technical and economical indexes were obviously enhanced.更多还原