150t RH精炼装置环流特性水模试验研究  

Study on circulation characteristics in 150 t RH refining unit by water modeling

作　　者：朱万军[1,2] 区铁[2] 齐江华[2] 杨成威[2] 王春锋[3] 刘先同[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》2014年第5期38-42,共5页Steelmaking

摘　　要：基于相似原理,按照1︰4的比例对武汉钢铁(集团)公司150 t RH精炼装置建立了水力模型,通过水模试验对RH处理过程熔体流态进行了分析,考察了插入管吹气孔径和吹气孔数量对真空环流参数的影响,并通过正交试验考察了不同操作条件下钢水的环流参数。试验结果表明,吹气孔径由0.75 mm增加到1.5 mm对环流参数影响不大,吹气孔数量由12个增加至16个可明显减少混匀时间;当真空室压力达到极限67 Pa,提升气体流量为130 m3/h,插入深度为650 mm,钢水混匀效果最好。1 ： 4 water model has been established for 150 t RH refining unit in Wuhan Iron and Steel （Group） Co. based on analogy theory. The flow regime of molten steel and the effect of the diameter and the number of argon blowing holes were investigated by water model. The circulation parameters of different process conditions were also studied by orthogonal tests. The results show that there is little effect of the diameter of argon blowing holes on circulation parameters, while the mixing time reduces obviously as the number of argon blowing holes increase from 12 to 16. The optimal processes for mixing are the pressure less than 67 Pa, the argon flow rate 130 m^3/h and the immersion depth of snorkel 650 mm.

关 键 词：混匀时间 循环流量 RH精炼 水模型 

分 类 号：TF769.4[冶金工程—钢铁冶金]