2019 Pittsburgh AISTech

Evaluation of Mixing and Mass Transfer at Ternium Brazil's BOF Through Cold Model Experiments (Room 409)

07 May 19
2:30 PM - 3:00 PM

Tracks: Oxygen Steelmaking

Speaker(s): Johannes Schenk, Professor, Montanuniversität Leoben; Breno Maia, Lumar Metals North America; Daniel Augusto Godinho de Carvalho, Metallurgical Process Expert, Ternium Brazil; Debora Silveira, Federal University of Minas Gerais; Roberto Parreiras Tavares, Federal University of Minas Gerais; Raissa S. Salgado, Federal University of Minas Gerais; Mariana A. Ribeiro , Federal University of Minas Gerais

Bottom blowing in the BOF process provides higher metal bath agitation, improving the refining reactions. Steel–slag mass transfer is a key step in the reaction of different steel components, such as phosphorous, manganese and others. In the present work, experiments were carried out in a cold model of a Ternium Brazil BOF converter, aiming to evaluate bath homogenization and mass transfer. Based on similarity criteria, it is possible to transpose the laboratory results to the industrial practice. The model evaluated the influence of the tuyeres' flowrate and configuration on processes that involve a mass transfer between metal and slag.