Abstract
The slag entrapment under different conditions of 80t blowing argon ladle furnace was investigated by physical simulation. The water was used to simulate liquid steel and liquid paraffin was for slag. The processing of slag entrapment under different blowing structures was analyzed and the critical velocity and critical droplets diameter of describing it was obtained. Based on the experiments, the relationship between the interface flow velocity and the critical blowing rate (CBR) was deduced. In the real process, it is suggested that the bottom blowing rate is from 40 L/min to 180L/min when the interface tension is 0.12~1.2 N/m during the soft argon blowing.
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References
Xiao Z Q, Liu C L, Hu L X, et al. “Behavior and Source of Ladle Inclusions in Steel Treated by Power Injection”, Iron and Steel, 1988, 23(2):23–29.
Gupta D, Lahiri A K. “A water model study of the flow asymmetry inside a continuous casting mold”, Metall. Mater. Trans. B, 1996, 27(5): 757–762.
Zheng S G, Zhu M Y. “Water model study on removing inclusions in a ladle with argon injected through nozzle and porous plug”, Acta Metallurgica Sinica, 2006, 42(11): 1143–1148.
Jonsson L, Joensson P. “Modelling of fluid flow conditions around the slag/metal interface in a gas-stirred ladle”. ISIJ Int., 1996, 36(9): 1127–1134.
Han J W, Heo S H “Transient fluid flow phenomena in a gas stirred liquid bath with top oil layer-approach numerical simulation and water mold experiment”. ISIJ Int., 2001, 41(10): 1165–1172.
Krishnapisharody K, Irons G A. “Modeling of slag eye formation over a metal bath due to gas bubbling”. Metall. Mater. Trans. B, 2006, 37(5): 763–772.
Li B K, Gu M Y, Qi F S, et al. “Modeling of three-phase(gas/molten steel/slag) flows and slag layer behavior in an argon ags stirred ladle”. Acta Metallurgica Sinica, 2008, 44(10): 1198–1202.
Mamabu I, Yutaka S, Ryusuke O, et al. “Evaluation of critical gas flow rate for the entrapment of slag using a water model”. ISIJ Int., 1994, 34(2): 164–170.
Kim S H, Fruehan R J, Guthrie R I L. “Physical model studies of slag/metal reactions in gas sti rred ladles-determination of critical gas flow rate”. Iron & Steel Maker, 1993, 20(11): 71.
Zhu M Y, Xiao Z Q. “Mathmatical and physical simulation in steel refining”. Beijing, Metallurgical Industry Press, 1998.
Cheng G G, Zhang J, Yi X J. “Study on mechansim of slag entrapment in bottom Ar-blowing for ladle”. Steelmaking, 1993, (6): 23–25.
Zheng W, Tu H, Li G Q, et al.“Modeling of slag entrapment and molten steel expsed to atmosphere in refining of 250 t ladle weith bottim-blown argon”. The Chinese Journal of Process Engineering, 2014, 14(3): 361–367.
Franz Oeters, Metallurgy of Steelmaking, Berlin, Verlag Stahleisen mbH, 1989.
Masamichi S, Kazumi M “Fluid flow and mixing characteristics in a gas-sti rred moltenmetal bath”. Transact ions ISIJ, 1983, 23: 169–175.
Gan L, He P. “Study on the characteristics of critical gas flowrate for the entrapment of slag in gas-stirred ladles,” Steelmaking, 2009, 25 (1): 17–21.
Xiao Z Q, Peng Y C. “Mathematical modelling of entrapment phenomena at slag/metal interface in gas stirred ladle,” IRON AND STEEL, 1989, 24 (10): 41–46.
Szekely J, Fluid flow phenomena in metals processing (Academic Press, 1979).
Qu Y, Theroy of Steelmaking (Beijing, BJ: Metallurgical Industry Press, 1980).
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Wang, R. et al. (2016). Physical Simulation of Critical Blowing Rate of Slag Entrapment of 80 Tons Ladle. In: Allanore, A., Bartlett, L., Wang, C., Zhang, L., Lee, J. (eds) EPD Congress 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48111-1_2
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DOI: https://doi.org/10.1007/978-3-319-48111-1_2
Publisher Name: Springer, Cham
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