A conventional turbulence inhibitor is compared with a swirling chamber from the points of view of fluid flow and removal rate of inclusion in the tundish. Comparing the RTD curves, inclusion removals, and the stream-lines in water model experiments, it can be found that the tundish equipped with a swirling chamber has a great effect on improving the flow field, and the floatation rate of inclusion is higher than the tundish with a turbulence inhibitor. Because of the introduction of the swirling chamber, the flow field and inclusion removal in a two-strand swirling flow tundish are asymmetrical. Rotating the inlet direction of swirling chamber 60 degree is a good strategy to improve the asymmetrical flow field.
参考文献
[1] | ZHANG Li-feng;Auki J;Thomas B G .Inclusion Removal by Bubble Flotation in a Continuous Casting Mold[J].Metallurgical and Materials Transactions,2006,37B:361. |
[2] | A. Ramos-Banderas;R.D. Morales;J. de J. Barreto .Modelling Study of Inclusions Removal by Bubble Flotation in the Tundish[J].Steel Research International,2006(5):325-335. |
[3] | ZHONG Liang-cai;LI Bao-kuan;ZHU Ying-xiong et al.Fluid Flow in a Four-Strand Bloom Continuous Casting Tunarsh With Different Flow Modifiers[J].ISU International,2007,47(01):88. |
[4] | LIU Jin-gang,YAN Hui-cheng,LIU Liu,WANG Xin-hua.Water Modeling of Optimizing Tundish Flow Field[J].钢铁研究学报(英文版),2007(03):13-19. |
[5] | Solorio-diaz G;Morales R D .Effect of a Swirling Ladle Shroud on Fluid Flow and Mass Transfer in a Water Model of a Tundish[J].International Journal of Heat and Mass Transfer,2005,48:3574. |
[6] | D MAZU;M DAR .The Physical and Mathematical Modeling of Continuous Casting Tundish Systems[J].ISIJ International,1999(6):524-547. |
[7] | Miki Y;Ogura S;Fujii T .Separation of Inclusions From Molten Steel in a Tundish by Use of a Rotating Electromagnetic Field[J].Kawasaki Steel Technical Report(Japan),1996,35:67. |
[8] | ZOU Zong-shu;HOU Qin-fu;KUANG Shi-bo et al.Feasibility Study of a Swirling Flow Tundish[A].Lulea:Metallurgical Research Institute AB of MEFOS,2004,143 |
[9] | Yogeshwar SAHAI;Toshihiko EMI .Criteria for Water Modeling of Melt Flow and Inclusion Removal in Continuous Casting Tundishes[J].ISIJ International,1996(9):1166-1173. |
[10] | Zheng X F;Peter C;HAYIS et al.Particle Removal From Liquid Phase Using Fine Gas Bubbles[J].ISU International,1997,37(11):1091. |
[11] | YAN Xiao-ci;LUO Ming-dao.Interface Chemistry[M].北京:化学工业出版社,2005 |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%