Investigation of a possible route for oxygen transport via the metal droplets in top-blown steel converters
Djambazov, G., Pericleous, K., Lebon, B., Doh, Y., Jardy, A., Chapelle, P., Ghazal, G. and Gardin , P. (2012) Investigation of a possible route for oxygen transport via the metal droplets in top-blown steel converters. In: International Symposium on Liquid Metal Processing and Casting (LMPC). Wiley International, pp. 159-166. ISBN 9781118002025 (In Press)Full text not available from this repository.
The action of a top-blown compressible oxygen jet forms a deep cavity onto the molten steel bath surface. Oxygen chemically dissolved into the liquid metal droplets that have detached at the cavity edge by shear returns to the bath when each droplet descends through the slag layer and rejoins the bath. The remaining oxygen needed to sustain the part of the decarburization taking place in the bath (or at its surface) is assumed to be supplied by liquid iron oxide emulsified with the liquid metal. In a numerical model of the fluid flow in the converter vessel (gas in the top space and liquid metal in the bath) the concentration of this emulsion is traced as the oxide is carried by the strong, turbulent flow around the cavity lip to mix inside the bath. Highest concentrations are observed near the free surface suggesting that the interface layer is the main site of the bath reaction.
|Item Type:||Conference Proceedings|
|Title of Proceedings:||International Symposium on Liquid Metal Processing and Casting (LMPC)|
|Additional Information:|| This paper was presented at the 2011 International Symposium on Liquid Metal Processing and Casting (LMPC 2011), held from 25-28 September in Nancy, France.  The presentation was part of the programme delivered on September 27th 2011 in Session 3 entitled Steel Processing, Presentation No. 19.|
|Uncontrolled Keywords:||steel converter, numerical simulation, liquid metal flow, free surface|
|Subjects:||T Technology > T Technology (General)|
T Technology > TL Motor vehicles. Aeronautics. Astronautics
T Technology > TS Manufactures
|School / Department / Research Groups:||School of Computing & Mathematical Sciences|
School of Computing & Mathematical Sciences > Department of Mathematical Sciences
|Last Modified:||08 Jul 2014 17:31|
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