ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2015, Vol. 36 ›› Issue (1): 1-4.

• 试验研究 •    下一篇

基于水力学模拟试验的3流连铸20 t中间包结构优化研究

杨凌志1, 朱荣1, 李超1, 林腾昌1, 吴兵2, 梁建国2   

  1. 1北京科技大学冶金与生态工程学院,北京100083;
    2莱芜钢铁股份有限公司特殊钢厂,莱芜271104
  • 收稿日期:2014-06-25 出版日期:2015-02-01 发布日期:2022-08-29
  • 作者简介:杨凌志(1987-),男,博士研究生(北京科技大学),2009年北京科技大学(本科)毕业,炼钢工艺研究。

A Study on Optimization of a 20 t Tundish Structure for 3-Strands Casting Based on Hydraulic Simulated Test

Yang Lingzhi1,  Zhu Rong1,  Li Chao1,  Lin Tengchang1,  Wu Bing2 , Liang Jianguo2   

  1. 1 Metallurgical and Ecological Engineering School, University of Science and Technology, Beijing 100083;
    2 Special Steel Works, Laiwu Iron and Steel Co Ltd, Laiwu 271104
  • Received:2014-06-25 Published:2015-02-01 Online:2022-08-29

摘要: 采用几何相似比1:2.5的水模型试验研究了带有一字型挡墙,矩形导流孔,水平无倾角的原型中间包以及V形挡墙,倾角0°~40°Φ80~Φ120mm圆形导流孔,并加抑制器的改进结构的流场,得出V字型挡墙+30°倾角和直径Φ80 mm导流孔+深盘带唇缘型湍流抑制器的改进中间包结构最优,可延长钢液在中间包内的停留时间,死区体积从原中间包的48.16%~63.06%降至10.3%~10.9%,有利于夹杂物的快速上浮。

关键词: 20 t中间包, 流场模拟, 停留时间分布曲线, 湍流抑制器, 结构优化

Abstract: The flow field in original tundish with single-line type retaining wall, rectangular guide-flow-hole and level- no dip angle and in improved tundish with V- type retaining wall, Φ80 ~Φ 120 mm round guide-flow-hole and dip angle 0°- 40 °, and adding turbulence inhibitor has been tested and studied by using geometric similarity 1:2.5 water model. It is obtained that the structure of improved tundish with V- type retaining wall +30° angle and diameter Φ80 mm guide-flow- hole + deep disc-lip type edge turbulence inhibitor is optimal, it may prolong the residence time of liquid in tundish and the percentage of dead zone volume of liquid decreases to 10.3% 〜10.9% from 48.16% ~63.06% in original tundish, and is in favor of inclusions in liquid to quick floating off.