Title

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

Authorship

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

Carvalho, Daniel Augusto Godinho de

I am this author

Castro, Herbert

I am this author

Demuner, Leonardo

I am this author

Viana, Marcos

I am this author

Wojnar, Pavel

I am this author

Schulz, Tilo

I am this author

Maia, Breno Totti

I am this author

DOI

10.5151/1982-9345-30634

Downloads

Abstract

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.

Keywords

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

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