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 ›› 2014, Vol. 35 ›› Issue (5): 15-18.

• 试验研究 • 上一篇    下一篇

挡墙结构对46 t中间包钢液流动特性影响的数值和物理模拟

李洋,金焱,冯学武,常正昇,金业磊   

  1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉 430081
  • 收稿日期:2014-04-26 出版日期:2014-10-01 发布日期:2022-08-31
  • 作者简介:李洋(1988-),男,硕士研究生(武汉科技大学),2012年攀枝花学院(本科)毕业,连铸中间包冶金新技术研究。

Numerical and Physical Simulation for Effect of Baffle Structure on Flow Characteristics of Liquid in a 46 t Tundish

Li Yang , Jin Yan , Feng Xuewu , Chang Zhengsheng  , Jin Yeilei   

  1. Key Lab for Ferrous Metallurgy and Resources of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081
  • Received:2014-04-26 Published:2014-10-01 Online:2022-08-31

摘要: 通过采用流动力学软件FLUENT进行的数值模拟和几何相似比1:3的水模型分别研究了导流孔倾角30°的U型挡墙和导流孔倾角分别为20°,25°,30°的V型挡墙4种结构的挡墙对46 t两流T型Φ800 mm圆铸坯中间包钢液流动特性的影响,并采用稳态模拟计算中间包钢液的温度场分布。结果表明,两种模拟结果有良好的一致性;使用导流孔倾角20°的V型挡墙的中间包流动特性最佳,中间包出口流温差仅为4.0 K,整体最大温差为14.2 K,停留时间最长为803.1 s,死区体积分数最小为0.09,更有利去除钢液夹杂物,提高钢的洁净度。

关键词: 46 t T型中间包, 挡墙结构, 数值模拟, 物理模拟

Abstract: The effect of four kinds of baffle structure- U type baffle with guide flow hole angle 30°, and V type baffle respective with guide flow hole angle 20°, 25° and 30° on liquid flow characteristics of liquid in a 46 t T type tundish for casting double strands Φ800 mm round bloom are respectively studied by numerical simulation with fluid dynamic software FLUENT and with geometric similarity ratio 1:3 water model, and the distribution of temperature of liquid in tundish is calculated by stable simulation. Results show that both simulated results have better consistence; the flow characteristic of liquid in tundish using V type baffle with guide flow hole angle 20° is best, i. e. the temperature difference of flow at outlet of tundish is only 4.0 K, whole liquid max temperature difference is 14.2 K, longest residence time is 803.1 s and dead zone volume fraction is minimum- 0.09, it is available to move inclusions in liquid and enhance cleanliness of steel.

Key words: 46 t T type Tundish, Structure of Baffle, Numerical Simulation, Physical Simulation