小方坯五流对称中间包流场优化与应用

杨春雨; 孙彦辉; 张西超; 徐蕊; 葛亮; 汪成义

doi:10.7513/j.issn.1004-7638.2015.01.019

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小方坯五流对称中间包流场优化与应用

doi: 10.7513/j.issn.1004-7638.2015.01.019

1. 吉林化工学院理学院, 吉林吉林 132022;
2. 北京科技大学冶金与生态工程学院, 北京 100083

详细信息

作者简介:
杨春雨(1972-),男,黑龙江青冈人,副教授,硕士研究生,主要从事应用数学研究。

中图分类号: TF777
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- 文章访问数: 153
- HTML全文浏览量: 58
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- 被引次数: 0
出版历程
- 收稿日期: 2014-09-03

Mathematical Simulation and Application of Flow Field of Molten Steel for Five-strand Symmetrical Tundish

1. School of Science, Jinlin Institute of Chemical Technology, Jilin 132022, Jilin, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 针对铸坯中非金属夹杂物超标的问题,以某钢厂五流对称150 mm×150 mm方坯连铸中间包为研究原型,采用数值模拟的方法研究不同控流装置对中间包内流场的影响,并得到最优的挡墙结构。结果表明,原型中间包存在停留时间短,死区比例大,持续流动的钢液对中间包包壁冲刷侵蚀的问题;采用优化后的U型挡墙后,停留时间延长了257.11s,死区比例减小27.31%,且各水口均匀性明显改善。现场试验发现:中间包优化后T[O]含量降低45.81%,大颗粒夹杂物含量明显降低。
- 五流中间包 /
- 数值模拟 /
- 流场 /
- 挡墙 /
- 挡坝
Abstract: In view of excessive non-metallic inclusion content in a five-strands symmetric casting 150 mm×150 mm bloom,the effect of different flow control devices on flow field of liquid in tundish has been studied by means of numerical simulation in order to get optimum baffle. The results reveal the prototype tundish presents the problems such as short average residence time,large dead zone and erosion in the tundish by molten steel. When using the optimum new U-type baffle,average residence time increased by 257.11 s and dead area volume fraction decreased by 27.31%,the standard deviation of average residence time of each nozzle was smaller. Field experiment results shows that T[O]in liquid in tundish decreases by 45.81% and the amount of large inclusions decreases considerably.
- tundish of five-strand casting /
- numerical simulation /
- flow field /
- baffle /
- dam