Slag Foaming Fundamentals - A Critical Assessment
AUTOR(ES)
Almeida, Rodolfo Arnaldo Montecinos de, Vieira, Deisi, Bielefeldt, Wagner Viana, Vilela, Antônio Cezar Faria
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
02/03/2017
RESUMO
Slag foaming is part of steelmaking process and could bring several benefits: it helps to save energy, improves productivity, enhances the refractory service life, decreases noise pollution and protects the bath from nitrogen incorporation. Unfortunately, slag foaming is a highly dynamic process that is difficult to control. There are factors that limit the quality of the foam generated on the slag, such as: basicity, FeO content, surface tension, viscosity, carbon and oxygen injection. This paper aims to discuss the main factor that induces foaming, mathematical models proposed by different authors and the use of isothermal solubility diagram (ISD) to predict the foam quality.
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