150t钢包底吹布置优化水模试验研究  

Optimization of bottom nozzle location in 150 t ladle by water model experiment

作　　者：朱万军[1,2] 区铁[2] 齐江华[2] 杨成威[2] 彭著刚[2] 刘先同[3] 王春锋[3] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081 [2]武汉钢铁集团公司研究院,湖北武汉430080 [3]武汉钢铁集团公司条材总厂CSP分厂,湖北武汉430080

出　　处：《炼钢》2013年第5期34-37,51,共5页Steelmaking

摘　　要：基于相似原理,按照相似比1∶4对武汉钢铁(集团)公司150 t钢包建立了水力模型,通过水模试验考察了吹氩孔位置、角度以及吹氩流量变化对钢包混匀时间的影响,并考察了不同底吹布置条件下钢包流场变化情况。水模试验结果表明,原型方案中,最佳吹气流量为0.64 m3/h;0.65R-90°为底吹透气喷嘴最佳布置方式;底吹喷嘴布置不仅要考虑低吹气流量下的混匀效果,而且要考虑到气体对钢包内壁的冲刷作用。Based on analogy theory, 1：4 water model has been established for 150 t ladle in Wuhan Iron and Steel （Group） Co. The effect of position and angle of bottom nozzle and gas flow-rate on mixing time was analysed by water model experiments. The flow field of different bottom nozzle position was also studied. The experiment results show that 0. 64 m3/h was the best flow rate in the original scheme, and the scheme of 0. 65R- 90° was the best bottom nozzle location. The location of bottom nozzle should consider not only the mixing in low flow rate, but also the washing erosion to the ladle lining by blowing gas.

关 键 词：混匀时间 钢包 底吹氩 水模 

分 类 号：TF769.9[冶金工程—钢铁冶金]