八流T形连铸中间包钢水停留时间分布特征研究  

Study on the Residence Time Distribution Characteristics of T Type Eight-strand Continuous Casting Tundish

作　　者：陈远清[1] 王学兵[1] 仇圣桃[1] 彭世恒[1] 

机构地区：[1]钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《钢铁钒钛》2009年第1期46-50,共5页Iron Steel Vanadium Titanium

基　　金：钢铁研究总院科技基金资助项目(事05XY0850)。

摘　　要：基于相似原理，建立了八流连铸中间包的1：2物理模型，通过水模实验测定了1#～4#控流方案下中间包内的停留时间分布（Residence time distribution，简称RTD）。通过推导提出了多流连铸中间包的RTD曲线分析方法，并以此分析了中间包内的流体平均停留时间、流动模式和各流流动一致性，进而对控流装置进行优化选择。研究结果表明，3#控流方案能较好地改善中间包内的流动特征。Based on the principle of similarity, 1：2 physical model of eight-strand continuous casting tundish is built. Water modeling experiments are carried out to measure the residence time distribution of the fluid in the tundish. A method for analyzing the RTD curve of multi-strand tundish is presented by deducing, which is then used to analyze the average residence time, flow pattern and the flow uniformity of different lines. After that, the optimized case of flow control device is chosen. Study shows that case 3 can obviously improve the flow characteristics in the tundish.

关 键 词：八流中间包 控流装置 物理模拟 RTD曲线 流动一致性 

分 类 号：TF777[冶金工程—钢铁冶金]