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Avoiding sloppy BOS process behavior
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2010 (English)In: Proceedings of the Iron & Steel Technology Conference: May 3 - 6, 2010, Pittsburgh, Pennsylvania, U.S.A / [ed] Ronald E. Ashburn, Warrendale, Pa: Association for Iron & Steel Technology , 2010, 1037-1047 p.Conference paper (Refereed)
Abstract [en]

Extreme BOS processing conditions may sometimes lead to excessive slag foaming and slopping, resulting in considerable amounts of metallic losses, equipment damage and un-necessary production disturbances. Control of slag formation without slopping is primarily accomplished by taking preventive measures. If static control measures are not effective then in-blow control measures are required and for these to be successful, it is necessary to employ a method for predicting slopping events. Such a system, utilizing BOS vessel vibration measurement, is presently being re-introduced at SSAB's BOS plant in Luleå, Sweden. A deep study into the causes of slopping has been carried out for a 114 tonne LD/LBE vessel, equipped with an automatic system for slopping registration using image analysis. Improved slopping control was achieved by developing a novel lance control scheme, with a new approach to the adjustment of lance position according to scrap quality and ore additions

Place, publisher, year, edition, pages
Warrendale, Pa: Association for Iron & Steel Technology , 2010. 1037-1047 p.
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-35802Local ID: a79ec0bd-2fa5-423c-8602-b52e12c7abd1ISBN: 9781935117094OAI: oai:DiVA.org:ltu-35802DiVA: diva2:1009056
Conference
AISTech 2010 : 03/05/2010 - 06/05/2010
Note
Godkänd; 2010; 20110419 (andbra)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Brämming, MatsBjörkman, Bo
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