Anais do Seminário de Aciaria, Fundição e Metalurgia de Não-ferrosos


ISSN 2594-5300

Título

BOF BLOWING PROCESS CHALLENGES FOR HIGH RATE OF IRON ORE PELLET ADDITION - PROCESS DEVELOPMENT AND RESULTS AT TKCSA

DOI

10.5151/1982-9345-30634

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Resumo

At thyssenkruppCSA, a positive heat balance at BOF process is faced, mainly because of low utilization of scrap and plant design. A singular logistic concept for hot metal transport between blast furnace and steel plant was established to optimize transportation and energy balance. Up to 80 kg of iron ore pellets/t steel is necessary for 340t BOF heat balance. In order to accomplish this challenge a stable blowing process, intensive operational development have been successfully executed: slopping rate reduction of 80% achieved without changing the blowing time. This paper describes steps and results of this development.

 

Palavras-chave

BOF, LD converter, process, slopping, iron ore, addition, blowing process

BOF, LD converter, process, slopping, iron ore, addition, blowing process

Como citar

Carvalho, Daniel Augusto Godinho de; Castro, Herbert; Demuner, Leonardo; Viana, Marcos; Wojnar, Pavel; Schulz, Tilo; Maia, Breno Totti. BOF BLOWING PROCESS CHALLENGES FOR HIGH RATE OF IRON ORE PELLET ADDITION - PROCESS DEVELOPMENT AND RESULTS AT TKCSA , p. 637-645. In: 48º Seminário de Aciaria, Fundição e Metalurgia de Não-Ferrosos, São Paulo, 2017.
ISSN: 2594-5300 , DOI 10.5151/1982-9345-30634