三流非对称连铸18 t中间包流场的物理和数学模拟

特殊钢 ›› 2014, Vol. 35 ›› Issue (1): 7-10.

三流非对称连铸18 t中间包流场的物理和数学模拟

王红娜¹, 杨亮¹, 郑宝安², 樊世亮², 陈列², 成国光¹

1北京科技大学冶金与生态工程学院，北京100083 ；
2 西宁特殊钢股份有限公司，西宁810005

收稿日期:2013-07-17 出版日期:2014-02-01 发布日期:2022-09-05
作者简介:王红娜(1987-),女，硕士研究生(北京科技大学),2011年河北大学(本科)毕业，特殊钢连铸工艺及理论研究。

Physical and Numerical Simulation on Flow Field in 18 t Tundish for Three-Strand Unsymmetrical Casting

Wang Hongna¹, Yang Liang¹, Zheng Baoan², Fan Shiliang², Chen Lie², Cheng Guoguang¹

1 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ；
2 Xining Special Steel Co Ltd, Xining 810005

Received:2013-07-17 Published:2014-02-01 Online:2022-09-05

摘要/Abstract

摘要： 以西宁特钢三流非对称250 mm×280 mm方坯连铸18 t中间包为研究原型,应用1:2.2比例水模型试验和数学模拟相结合的方法研究3种控流装置对中间包流场的影响,得出一种优化的新型挡墙结构。结果表明,原型中间包3个水口间的平均停留时间和滞止时间相差较大,对各注流之间的均匀控制带来不利影响;使用新型的U形挡墙后,中间包内死区比例降低了36.67%,3个水口的平均停留时间标准差减小,有利于各流之间的均匀化控制。

Abstract: Based on the research prototype of an 18t tundish for three-strand unsymmetrical casting 250 mm X 280 mm bloom at Xining Special Steel, the effect of 3 kinds of flow control device on flow field of liquid in tundish is studied by using geometric similarity ratio 1： 2. 2 water model to get optimum new type baffle. Results show that the difference of average residence time and minimum residence time between tundish three strand nozzles in prototype tundish is bigger, it is unfavorable to uniformly control each strand casting； with using the optimum new U-type baffle, dead volume fraction of liquid in tundish decreases by 36. 6% and the standard deviation of average residence time of three nozzle decreases, it is favorable to uniformly control each strand casting.

王红娜, 杨亮, 郑宝安, 樊世亮, 陈列, 成国光. 三流非对称连铸18 t中间包流场的物理和数学模拟[J]. 特殊钢, 2014, 35(1): 7-10.

Wang Hongna, Yang Liang, Zheng Baoan, Fan Shiliang, Chen Lie, Cheng Guoguang. Physical and Numerical Simulation on Flow Field in 18 t Tundish for Three-Strand Unsymmetrical Casting[J]. Special Steel, 2014, 35(1): 7-10.