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Title

A computational fluid dynamic modeling study of slag fuming in top submerged lance smelting furnace

Author(s)

Huda, Nazmul;  Naser, J.;  Brooks, Geoffrey;  Reuter, M. A.;  Matusewicz, R. W.

Abstract

Slag fuming is a process of extracting zinc from molten slag in the form of metal vapor by injecting or adding a reducing source such as pulverized or lump coal, natural gas, etc. Top Submerged Lance (TSL) technology has been successfully applied to extract zinc by a fuming process from residues from the zinc industry, ISF and QSL slag and Lead blast furnace slag. A Computational Fluid Dynamic model has been developed for zinc slag fuming process from ISF slag to investigate details of fluid flow and heat transfer in the furnace. The models integrate complex combustion phenomena and chemical reactions with the heat, mass and momentum interfacial interaction between the phases present in the system. The model is based on 3-D Eulerian multiphase flow approach and it predicted the velocity and temperature field of the molten slag bath and side wall heat fluxes. The model also predicted the mass fractions of slag and gaseous components inside the furnace. The model confirmed that rate of zinc fuming increases with temperature and is broadly consistent with experimental data.

Publication type

Conference paper

Research centre

Swinburne University of Technology

Source

Proceedings of the World Congress on Engineering (WCE 2010), London, United Kingdom, 30 June-02 July 2010, Vol. 2

Publication year

2010

FOR Code(s)

091501 Computational Fluid Dynamics

Keyword(s)

CFD;  Multiphase;  Slag fuming;  Top Submerged Lance;  Zinc

Publisher

Newswood Limited

ISSN

2078-0958 (series ISSN)

ISBN

9789881821072

Publisher URL

http://www.iaeng.org/WCE2010/

Copyright

Copyright © 2010. The published version is reproduced with the kind permission of the publisher.

Full text

Peer reviewed