Título

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

Autoria

Carvalho, Daniel Augusto Godinho de; Castro, Herbert; Demuner, Leonardo; Viana, Marcos; Wojnar, Pavel; Schulz, Tilo; Maia, Breno Totti

Carvalho, Daniel Augusto Godinho de

Eu sou esse autor

Castro, Herbert

Eu sou esse autor

Demuner, Leonardo

Eu sou esse autor

Viana, Marcos

Eu sou esse autor

Wojnar, Pavel

Eu sou esse autor

Schulz, Tilo

Eu sou esse autor

Maia, Breno Totti

Eu sou esse autor

DOI

10.5151/1982-9345-30634

Downloads

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