The K-OBM and KMS converter - for the flexible production of carbon and stainless steels and ferro-alloys

Combined top and submerged blowing with oxygen in the autothermic K-OBM converter is applicable in a wide field of steelmaking processes. Submerged blown oxygen serves in several applications as refining gas and carrier gas for solid materials such as powdered lime. Moreover, this technology can als...

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Published inSteel times international Vol. 21; no. 5; pp. 46 - 49
Main Authors Fritz, E, Pirklbauer, W, Zechner, R, Zhai, Y
Format Journal Article
LanguageEnglish
Published Redhill Quartz Business Media Ltd 01.09.1997
Subjects
Alloys
Blowing
Carbon
Iron and steel making
Refining
Steel converters
Steels
Submerged
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Abstract Combined top and submerged blowing with oxygen in the autothermic K-OBM converter is applicable in a wide field of steelmaking processes. Submerged blown oxygen serves in several applications as refining gas and carrier gas for solid materials such as powdered lime. Moreover, this technology can also be used for refining of ferro alloys, such as FeMn and FeCr, and for hot metal pre-treatment, such as dephosphorisation.
AbstractList Combined top and submerged blowing with oxygen in the autothermic K-OBM converter is applicable in a wide field of steelmaking processes. Submerged blown oxygen serves in several applications as refining gas and carrier gas for solid materials such as powdered lime. Moreover, this technology can also be used for refining of ferro alloys, such as FeMn and FeCr, and for hot metal pre-treatment, such as dephosphorisation.
The K-OBM converter provides an extremely flexible variant of converter steelmaking in which oxygen is blown both through a top lance as in conventional LD steelmaking, but also through submerged tuyeres. Operation of the process can be modified to exactly fit a desired product mix, eg carbon and stainless steel. This flexibility is a unique feature compared with all other available steelmaking technologies, including the LD converter and EAF. The technology, which is used in Japanese plants in particular, is marketed by VAI and KCT, a 100% subsidiary of VAI, and by respective engineering licensees. Moreover, the technology can also be used for the refining of ferro alloys, such as FeMn and FeCr, and for hot metal pre-treatment, such as dephosphorization. [Abstractor's note: this article is also published in Steel Times, Vol.225 (9), September 1997, pp.364-7]. (Abstract quotes from original text)
Author Pirklbauer, W
Zechner, R
Fritz, E
Zhai, Y
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Snippet Combined top and submerged blowing with oxygen in the autothermic K-OBM converter is applicable in a wide field of steelmaking processes. Submerged blown...
The K-OBM converter provides an extremely flexible variant of converter steelmaking in which oxygen is blown both through a top lance as in conventional LD...
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StartPage 46
SubjectTerms Alloys
Blowing
Carbon
Iron and steel making
Refining
Steel converters
Steels
Submerged
Title The K-OBM and KMS converter - for the flexible production of carbon and stainless steels and ferro-alloys
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