Physical Modeling of Hot Metal Desulfurization Through Submerged Rotative Lance

A physical model of a desulfurization ladle with rotative lance gas injection was used to evaluate the effects caused by lance depth, lance radial position and carrier gas flowrate on sulfur removal. The time required for complete homogenization was estimated by condutimetry technique and mass transfer rate was measured using thymol as a tracer substance. The results were used in order to assess the parameters influence and to define the best stirring for maximum efficiency. Gas injection flowrate was shown to be the most influential factor, followed by lance depth and rotation. Radial position was not that significant.

Miss Cecília Laia da Silva | Universidade Federal de Ouro Preto
 

Miss Daniela Perasoli | Gerdau
 

Miss Cecília Laia da Silva | Universidade Federal de Ouro Preto
 

Carlos Berlini Filho | Universidade Federal de Minas Gerais
 

Miss Mylla Cássia da Silva e Silva | Universidade Federal de Ouro Preto
 

D.Sc. Johne Jesus Mol Peixoto | Universidade Federal de Ouro Preto
 

D.Sc. Carlos Antônio da Silva | Universidade Federal de Ouro Preto