WHOLE ANALYSIS APPROACH FOR RESIDUE TIME DISTRIBUTION CURVE IN MULTI-STRAND CONTINUOUS CASTING TUNDISH
LEI Hong1), ZHAO Yan2), BAO Jialin1), LIU Chengjun2), CHEN Haigeng2), HE Jicheng1)
1) Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819
2) School of Materials and Metallurgy, Northeastern University, Shenyang 110819
Cite this article:
LEI Hong ZHAO Yan BAO Jialin LIU Chengjun CHEN Haigeng HE Jicheng. WHOLE ANALYSIS APPROACH FOR RESIDUE TIME DISTRIBUTION CURVE IN MULTI-STRAND CONTINUOUS CASTING TUNDISH. Acta Metall Sin, 2010, 46(9): 1109-1114.
The study of residue time distribution (RTD) curve is usually one of the effective methods to estimate the flow characteristics in the continuous casting tundish. In the past, the analysis model for RTD curve of one-strand is usually applied to estimate the individual strand data in multi-strand tundish, but the result obtained by such a model can not agree with the physical fact sometimes. In this paper, an analysis model is proposed to analyze flow characteristics in multi-strand tundish. First, the whole RTD curve of multi-strand tundish is obtained by the individual strand data. Second, classic analysis model is applied to analyze the whole RTD curve of multi-strand tundish. Third, average residence time is chosen as a key parameter to estimate the similarity of flow characteristics of each strand in the multi-strand tundish. Such an analysis approach can avoid the occurrence of the negative dead zone. And the volume ratio of dead zone satisfies the physical facts.
Supported by National High-Tech R&D Program of China (No.2009AA03Z530), National Natural Science Foundation of China and Shanghai Baosteel (No.50834010)
[1] Sahai, Y. Ahuja, R.. Ironmaking Steelmaking, 1986; 13: 241
[2] Sahai Y, Emi T. ISIJ Int, 1996; 36: 667
[3] Singh S, Koria S C. Ironmaking Steelmaking, 1996; 23: 255
[4] Mazumdar D, Guthrie R I L. Steel Res, 1997; 68: 293
[5] Mazumdar D, Guthrie R I L. ISIJ Int, 1999; 39: 524
[6] Zong J H. Yi K W, Yoon J K. ISIJ Int, 1999; 39: 139
[7] Jha P, Dash S K. ISIJ Int, 2002; 42: 670
[8] Jha P K, Dash S K. Int J Numer Methods Heat Fluid Flow, 2002; 12: 560
[9] Lopez-Ramirez S, Barreto J D J, Vite-Martinez P, Serrano J A R, Duran-Valencia C. Metall Mater Trans B, 2004 ; 35: 957
[10] Solorio-Diaz G, Morales R D, Ramos-Banderas A. Int J Heat Mass Transfer, 2005; 48: 3574
[11] Liu S X, Yang X M, Du L, Li L, Liu C Z. ISIJ Int, 2008; 48: 1712
[12] Yan J X, Huang Y, Liu S T. J Iron Steel Res, 1998; 10: 64
(阎建新, 黄晔, 柳寿亭. 钢铁研究学报, 1998; 10: 64)
[13] Fan J F, Zhang Q L, Zhu M Y, Lei H, Wang W Z.. Iron Steel, 1998; 33: 24
(樊俊飞, 张清朗, 朱苗勇, 雷洪, 王文忠. 钢铁, 1998; 33: 24)
[14] Fu P Y, Chen W Q, Jin Z C. Steelmaking, 1998; 14: 33
(富平原, 陈伟庆, 靳自成. 炼钢, 1998; 14: 33)
[15] Zheng S G, Zhu M Y, Jiang G L, Gong J P. Iron Steel; 2004, 39: 23
(郑淑国, 朱苗勇, 姜桂连, 宋嘉鹏. 钢铁2004; 39: 23)
[16] Zheng S G, Zhu M Y. Acta Metall Sinica. 2005; 41: 1073
(郑淑国, 朱苗勇. 金属学报, 2005; 41: 1073)
[17] Zheng S G, Zhu M Y. Chin J Process Eng. 2006; 6: 522
(郑淑国, 朱苗勇. 过程工程学报, 2006; 6: 522)
[18] Xiao X G. Metallurgical Reaction Engineering. Shenyang: Northeastern University Press. 1989: 72
(肖兴国. 冶金反应工程学.沈阳: 东北大学出版社. 1989: 72)
