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180t转炉底吹气体与熔池相互作用的水模型实验
Water Modelling Test on Interaction between Bottom Injection Gas and Bath for an 180 t Converter
【摘要】 通过10:1水模型研究了转炉底吹流量0.55~0.75 m~3/h和底吹喷嘴4孔对称、2孔对称、2孔不对称分布以及喷嘴位置d/D=0.1~0.9(d-喷嘴所在同心圆直径,D-转炉熔池直径)对熔池均混时间的影响。结果表明,d/D=0.3,底吹流量0.70 m~3/h,4孔对称底吹时熔池搅拌效果最佳;2孔不对称喷吹时,最佳流量为0.60~0.70 m~3/h,最佳喷嘴位置d/D=0.3~0.5;2孔对称喷吹时最佳流量与喷嘴位置分别为0.65 m~3/h和d/D=0.7。
【Abstract】 The effect of converter bottom gas flow rate 0.55~0.75 m~3/h,distribution of bottom nozzle with 4 hole symmetry,2 hole symmetry and 2 hole non-symmetry and blowing location d/D=0.1~0.9(d-diameter of concentric circles of located nozzle;D-diameter of converter bath)on bath mixing time has been studied by 10:1 water modelling. Results showed that the stirring effect for 4 hole symmetry bottom blowing with d/D=0.3 and flow rate 0.70 m~3/h was optimum,the stirring effect for 2 hole symmetry bottom blowing with 0.60~0.70 m~3/h and d/D=0.3~0.5 was opti- mum,and that for 2 hole non-symmetry was respectively 0.65 m~3/h and d/D=0.7.
【Key words】 180t Converter; Bottom Blowing Gas Flow Rate; Nozzle Location; Mixing Time; Water Modelling;
- 【文献出处】 特殊钢 ,Special Steel , 编辑部邮箱 ,2008年02期
- 【分类号】TF713
- 【被引频次】11
- 【下载频次】221