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Getting more steel from less hot metal at Ternium Siderar steelplant⋆

Published online by Cambridge University Press:  18 January 2011

R. Ares ,
W. Balante ,
R. Donayo ,
A. Gómez  and
J. Pérez
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Abstract

The Ternium Siderar steel plant in San Nicolas, Argentina, experienced a period of singleblast furnace operation in 2006, first due to one furnace’s unavailability, and later dueto the other’s relining. In order to exploit the excess steelmaking capacity, processeswere adjusted to reduce the amount of hot metal needed for the production of a ton ofsteel. The principal changes in the process are described in this paper: an increase inthe manganese content of hot metal to avoid manganese addition in the converter; heatingof scrap; coke additions; increase in pig iron; use of large quantities of SiC or FeSiduring the blow; temperature decrease at the end of the blow. All of this permitted anincrease in slab production compared with the standard process.

Keywords

Less hot metalscrap preheatingcoke-silicon carbide-ferrosiliconFontepréchauffage des ferraillescokecarbure de siliciumferro-silicium
Type
Research Article
Information
Metallurgical Research & Technology , Volume 107 , Issue 7-8 , July 2010 , pp. 303 - 308
Copyright
© EDP Sciences

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References

⋆ Article presented at the AISTech 2007 conference, 7–10 May 2007 Indianapolis, IN, USA and published with the kind authorization of the AIST.