复吹转炉底吹供气制度的研究与应用
来源期刊：钢铁2010年第4期
论文作者：李安林 梁新腾 翁建军
文章页码：26 - 30
关键词：复吹转炉； 透气砖； 底吹供气模式； 冶金效果
Key words：combined blown converter； gas supply brick； bottom blown pattern； metallurgical effect
摘 要：根据透气砖的结构形式,通过理论计算或实际测试得出透气砖的最小供气流量45 m3/h和上限供气流量200 m3/h,并针对2块和4块透气砖的底部供气条件,建立了与冶炼制度相适应的多种底吹供气模式。应用后复吹炉龄大幅提高,平均复吹炉龄达到7 000炉以上,实现了复吹与炉龄同步;复吹转炉终渣w(TFe)降低了3.25个百分点,终点钢水氧活度降低103×10-6,终点钢水w([C])·w([O])积达到0.002 6,合金收得率明显提高。
Abstract: According to the structure of gas supply brick,the volume of gas through gas supply brick was attained through theoretical calculation and industrial tests.The minimum volume of gas is 45 m3/h and the maximum volume is 200 m3/h.Furthermore,various bottom-blowing patterns,which were adapted to smelting system,were established with the gas supply conditions of two and four gas supply bricks.As results,there is a huge increase in the campaign life of combined blown converter,and the average life is above 7000 heats.The life of combined blowing can meet the life of converter as well.Further metallurgical effects are obtained as follows,TFe in the slag by 3.25%,[O] in the molten steel is decreases by 103×10-6 at the end point,and carbon-oxygen equilibrium drops to 0.0026.In addition,the yielding rate of alloy rises significantly.
李安林1，梁新腾2，翁建军3
(1.四川省攀枝花市 攀枝花钢铁研究院
2.攀枝花钢铁研究院，四川攀枝花 617000
3.新钢钒股份有限公司，四川攀枝花 617067)
摘 要：根据透气砖的结构形式,通过理论计算或实际测试得出透气砖的最小供气流量45 m3/h和上限供气流量200 m3/h,并针对2块和4块透气砖的底部供气条件,建立了与冶炼制度相适应的多种底吹供气模式。应用后复吹炉龄大幅提高,平均复吹炉龄达到7 000炉以上,实现了复吹与炉龄同步;复吹转炉终渣w(TFe)降低了3.25个百分点,终点钢水氧活度降低103×10-6,终点钢水w([C])·w([O])积达到0.002 6,合金收得率明显提高。
关键词：复吹转炉； 透气砖； 底吹供气模式； 冶金效果
