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Proceedings of the Seminar on Steelmaking, Casting and Non-Ferrous Metallurgy

ISSN 2594-5300

51° Seminário de Fusão, Refino e Solidificação de Metais — vol. 51, num.51 (2022)

Title

INCREASE IN THE PRODUCTIVITY OF THE BOF OF THE STEEL SHOP#2 OF USIMINAS THROUGH A NEW COMBINED BLOW PROJECT

INCREASE IN THE PRODUCTIVITY OF THE BOF OF THE STEEL SHOP#2 OF USIMINAS THROUGH A NEW COMBINED BLOW PROJECT

Authorship

Lima, Haysler Apolinário Amoroso

Lima, Haysler Apolinário Amoroso
Lima, Haysler Apolinário Amoroso

I am this author

DOI

10.5151/2594-5300-35077

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Abstract

THE PERFORMANCE OF A STEEL SHOP DEPENDS ON THE STABILITY OF ITS PRODUCTION EQUIPMENT, AND THE COMBINED BLOWING IS ESSENTIAL TO GUARANTEE THE CHEMICAL HOMOGENEITY OF THE STEEL, REDUCING THE TOTAL IRON OF SLAG (METALLIC YIELD), AS WELL AS INCREASING THE DEPHOSPHORIZATION RATE. THE COMBINED BLOWING SYSTEM CONSISTS OF THE ASSEMBLY OF TUYERES FOR INJECTION OF INERT GASES FROM THE BOTTOM. DEPENDING ON THE TYPE OF TECHNOLOGY, OPERATING CONDITIONS AND PRESERVATION TECHNIQUES, THIS SYSTEM BEHAVES DIFFERENTLY. THIS WORK SOUGHT THE IMPLEMENTATION OF A MONOBLOC TUYERES SYSTEM, WITH OPERATIONAL PARAMETERS ADJUSTED FOR THE OPERATION OF THE USIMINAS STEELWORKS, AS WELL AS OPERATIONAL MONITORING. RESULTING IN AN INCREASE IN THE LIFE OF THE TUYERES, WITH PROVEN EFFICIENCY IN REDUCING THE LEVEL OF OXIDATION IN THE STEEL BATH.

 

THE PERFORMANCE OF A STEEL SHOP DEPENDS ON THE STABILITY OF ITS PRODUCTION EQUIPMENT, AND THE COMBINED BLOWING IS ESSENTIAL TO GUARANTEE THE CHEMICAL HOMOGENEITY OF THE STEEL, REDUCING THE TOTAL IRON OF SLAG (METALLIC YIELD), AS WELL AS INCREASING THE DEPHOSPHORIZATION RATE. THE COMBINED BLOWING SYSTEM CONSISTS OF THE ASSEMBLY OF TUYERES FOR INJECTION OF INERT GASES FROM THE BOTTOM. DEPENDING ON THE TYPE OF TECHNOLOGY, OPERATING CONDITIONS AND PRESERVATION TECHNIQUES, THIS SYSTEM BEHAVES DIFFERENTLY. THIS WORK SOUGHT THE IMPLEMENTATION OF A MONOBLOC TUYERES SYSTEM, WITH OPERATIONAL PARAMETERS ADJUSTED FOR THE OPERATION OF THE USIMINAS STEELWORKS, AS WELL AS OPERATIONAL MONITORING. RESULTING IN AN INCREASE IN THE LIFE OF THE TUYERES, WITH PROVEN EFFICIENCY IN REDUCING THE LEVEL OF OXIDATION IN THE STEEL BATH.

Keywords

Combined Blowing, Monobloc Tuyeres and Metallic Yield

Combined Blowing, Monobloc Tuyeres and Metallic Yield

How to refer

Lima, Haysler Apolinário Amoroso. INCREASE IN THE PRODUCTIVITY OF THE BOF OF THE STEEL SHOP#2 OF USIMINAS THROUGH A NEW COMBINED BLOW PROJECT , p. 934-945. In: 51° Seminário de Fusão, Refino e Solidificação de Metais, São Paulo, 2022.
ISSN: 2594-5300 , DOI 10.5151/2594-5300-35077