300t顶底复吹转炉氧枪枪位的水模型研究和应用  

A Study on Oxygen Lance Level for a 300 t Top and Bottom Combined Blowing Converter by a Water Model and Application

作　　者：闫心怡 沈明钢[1] 冯超 

机构地区：[1]辽宁科技大学材料与冶金学院,鞍山114051

出　　处：《特殊钢》2018年第1期6-8,共3页Special Steel

摘　　要：研究了300 t顶底复吹转炉1:10几何相似比的水模型顶枪枪位(150~300 mm)和流量(44~48m^3/h)对钢液混匀时间的影响。模拟结果得出,最佳枪位为170 mm,最佳流量为45 m^3/h。钢厂300 t顶底复吹转炉应用结果表明,顶吹流量60 000 m^3/h和底吹流量1 000 m^3/h时,当顶枪枪位由1 900 mm改进为1 700 mm时,碳氧积平均值由原来的27.94降为23.49,提高了转炉内熔池的搅拌效果,吹炼时间由原15.8 min降低至15.5 min,降低了生产成本。The effect of top oxygen lance level （150 -230 mm） and flow rate （44 - 48 m3/h） of geometric similarity 1 ： 10 water model for 300 t top and bottom combined blowing converter on mixing time of liquid has been studied. It is obtained by simulation results that the optimum lance level is 170 mm and optimum flow rate is 45 m3/h. The application results of 300 t top and bottom combined blowing converter show that with top lance flow rate 60 000 m3/h and bottom blowing flow rate 1 000 m3/h, as the top lance level modifies to 1 700 mm from original 1 900 mm the average carbon and oxygen product decreases to 23.49 from original 27.94, the stirring effect of converter bath increases and the blowing time decrea- ses to 15.5 min from original 15.8 min to reduce production cost.

关 键 词：300 t顶底复吹转炉 氧枪枪位 水模型 均混时间 

分 类 号：TF713[冶金工程—钢铁冶金]