Abstract
Fluid flow characteristics in a four-strand tundish with gas blowing were studied by water modeling experiments. It is found that gas blowing can greatly improve the flow characteristics in the tundish with a turbulence inhibitor. It dramatically increases the peak concentration time, and greatly decreases the dead volume, and reduces the minimum residence time. The gas blowing location, gas flow rate, and porous plug area greatly influence the flow characteristics in the tundish; the gas blowing location near the baffle, smaller gas flow rate, and smaller porous plug area are better for improving the fluid flow characteristics. Using gas blowing can reduce the difference of flows at the middle outlets and side outlets for the multi-strand tundish. Bubbles produced by gas blowing can absorb small inclusions and provide the condition for inclusion collision and aggregation. Therefore, introducing gas blowing into a tundish and combining the turbulence inhibitor can improve inclusion floating and removal, and the cleanness of molten steel can be advanced.
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References
L. Zhang and S. Taniguchi, Fundamentals of inclusion removal from liquid steel by bubble flotation, Int. Mater. Rev., 45(2000), No.2, p.59.
L.C. Zhong, L.Y. Li, B. Wang, M.F. Jiang, L.X. Zhu, L. Zhang, and R.R. Chen, Water modelling experiment of argon bubbling curtain in a slab continuous casting, Steel Res. Int., 77(2006), No.2, p.103.
M.J. Zhang, H.Z. Wang, A. Huang, Q.X. Meng, and H.Z. Gu, Water modeling of effect on steel liquid flow in the bottom gas blowing tundish of different porous materials, J. Wuhan Univ. Sci. Technol. Nat. Sci. (in Chinese), 29(2006), No.5, p.433.
M.J. Zhang, H.Z. Wang, A. Huang, H.Z. Gu, and D.Q. Liu, Numerical simulation of molten steel flow in argon bottom blown tundish, J. Iron Steel Res. (in Chinese), 19(2007), No.2, p.16.
M.J. Zhang, H.Z. Wang, A. Huang, H.Z. Gu, and D.Q. Liu, Numerical simulation of molten steel flow in tundish with gas curtain, Spec. Steel (in Chinese), 27(2006), No.1, p.30.
A. Ramos-Banderas, R.D. Morales, L. García-Demedices, and M. Díaz-Cruz, Mathematical simulation and modeling of steel flow with gas bubbling in trough type tundishes, ISIJ Int., 43(2003), No.5, p.653.
H. Yamanaka, Effect of argon bubbling of in tundish on removal of non-metal inclusion in Slab, Tetsu-to-Hagane, 64(1983), No.4, p.213.
L.q. Tao, M.f. Jiang, D. Wang, W.h. Xue, and X. Jiang, Physical modeling and industrial practice of argon bottom bubbling in tundish, Iron Steel (in Chinese), 41(2006), No.5, p.32.
C. Marique, A. Dong, and J.P. Mahieu, Bubbling of inert gas into the tundish. A means to improve steel cleanliness, Iron Steelmaker, 17(1990), No.9, p.15.
S. Singh and S.C. Koria, Physical modeling of steel flow in continuous casting tundish, Ironmaking Steelmaking, 20(1993), No.3, p.221.
Y. Sahai and T. Emi, Melt flow characterization in continuous casting tundishes, ISIJ Int., 36(1996), No.6, p.667.
Y. Sahai and R. Ahuja, Fluid flow and mixing of melt in steelmaking tundishes, Ironmaking Steelmaking, 13(1986), No.5, p.241.
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Jiang, J., Li, Js., Wu, Hj. et al. Water modeling of molten steel flow in a multi-strand tundish with gas blowing. Int J Miner Metall Mater 17, 143–148 (2010). https://doi.org/10.1007/s12613-010-0204-0
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DOI: https://doi.org/10.1007/s12613-010-0204-0