板坯连铸中间包下渣量及影响因素水模型研究  

Hydraulic Model Research on the Slag Involved in the Mould of Slab CC and Influencing Factors

作　　者：杨小容[1] 陈崇峰[1] 倪红卫[1] 张继烈[1] 李首虎[1] 

机构地区：[1]武汉科技大学材料与冶金学院,湖北武汉430081

出　　处：《武汉钢铁学院学报》2004年第1期4-7,共4页

摘　　要：对我国某钢厂单流板坯连铸机中间包进行了水模型实验研究,测定了不同条件下中间包的下渣量和中间包钢液的RTD曲线及平均停留时间,用NOSA统计软件对测试结果进行了数据处理。研究中发现,中间包下渣量与浇注高度、中间包结构、控流元件的位置和高度、大包换包及换包时中间包液面高度有关。同时还观察到,采用阶梯型结构的中间包,在每一个中间包浇注最后一炉时,既可以降低中间包下渣量,又可以提高金属收得率。With the hydraulic model experiment on the tundish of single strand slab continuous caster,the slag involved in the mould and the RTD curve as well as the mean residence time of molten steel in the tundish under different conditions are measured.The results are processed by means of NOSA software.It is found that the slag involved in the mould is related to pouring height,tundish structure,positions and heights of flow modifiers, reopening of the ladle,and corresponding liquid level of the tundish. At the same time it is observed that the trapezoidal tundish may reduce both the slag involved in the mould and the yield loss of metal at the last pouring heat of each tundish.

关 键 词：板坯连铸 中间包 下渣量 水模型 NOSA统计软件 平均停留时间 

分 类 号：TF777.1[冶金工程—钢铁冶金]