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Optimizing the hot metal desulphurization processwith the usage of rotating lance

Published online by Cambridge University Press:  10 January 2007

S.-L. de Souza Costa ,
E. Pacelli Meireles de Araújo ,
I. Lopes Alves  and
J. Lima de Siqueira
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Abstract

The rotating lance, tested in the CaO-Mg and CaC2-Mg processes,promotes a 20% and 30% increase, respectively, in the desulphurizationrate, a 50% reduction of temperature drop, and a reduction ofmetal splash occurrences. A criterion was developed that takes intoaccount the equipment dimensions and the mass flow rates of gasand desulphurization material, with the objective of transposing theresults obtained at Usiminas steel shop n°1 desulphurization station,to other industrial plants. Furthermore, it allows simulations to bemade with the objective of optimizing the pig iron desulphurizationprocesses that use the above mentioned materials as desulphurizationagents.

Type
Research Article
Information
Metallurgical Research & Technology , Volume 103 , Issue 12: AciérieCoulée continueLaminage , December 2006 , pp. 531 - 536
Copyright
© La Revue de Métallurgie, 2006

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