Effect of Slag Layer on the Multiphase Interaction in a Converter
- 53 Downloads
A supersonic oxygen jet impinging onto the slag–metal interface is studied using computational fluid dynamics modeling with the aim of obtaining a better understanding of the multiphase interaction behavior in a converter. The dynamic interaction behavior as well as the effects of the slag thickness, viscosity, and surface tension are studied numerically. The results show that the geometrical dimensions of the cavity generated by the multiphase interaction decrease with increasing slag thickness. The presence of the slag layer can restrain splashing and droplet generation in the converter. However, the slag viscosity and surface tension have little effect on the momentum of the multiphase interaction, especially in the area away from the interaction zone under the present simulation conditions. The splashing behavior is not sensitive to the slag properties. The droplet generation rate changes slightly with variation of the slag viscosity and surface tension.
Financial support from the Ministry of Education of the People’s Republic of China (No. 20120006110036) and Jiangxi Provincial Department of Science and Technology (20171ACE50020) is gratefully acknowledged. Lingling Cao thanks the China Scholarship Council (201600090009) for support.
- 3.K. Chattopadhyay, Iron Steel Technol. 11, 277 (2014).Google Scholar
- 7.A. Chatterjee, N.O. Lindfors, and J.A. Wester, Ironmak. Steelmak. 3, 21 (1976).Google Scholar
- 9.H.-J. Odenthal, U. Falkenreck, and J. Schlüter, in Paper presented at the European Conference on Computational Fluid Dynamics, TU Delft, The Netherlands (2006).Google Scholar
- 34.L.L. Cao, Y.N. Wang, L. Qing, L.F. Sun, S.S. Liao, W.D. Guo, K.S. Ren, B. Blanpain, and M.X. Guo, in Paper presented at the 147th Annual Meeting & Exhibition (2018), pp. 353–364.Google Scholar
- 37.M.Y. Zhu, Modern Metallurgical Technology (Beijing: Metallurgical Industry Press, 2007), pp. 169–170.Google Scholar