2016 | OriginalPaper | Buchkapitel
Determination of Cavity Profile Induced by Supersonic Jets Impinging Onto Liquids Surface
verfasst von : Qiang Li, Mingming Li, Mingxia Feng, Zongshu Zou
Erschienen in: EPD Congress 2015
Verlag: Springer International Publishing
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The impingement onto the surface of bath by top-blown jets is a significant process characteristic in BOF and EAF steelmaking process. The cavity is one of the most important outcomes of the interaction and plays an important role on reaction kinetics and reactors performance. But to date, the understanding to cavity is still so limited. In present study, a water model for a BOF converter is established and the dimension of cavity profile is investigated. The effects of lance height, gas flow rate, nozzle inclination angle and the amounts of slag are discussed. The results show that penetration depth increases with the increase of gas flow rate and the amount of slag, and the decrease of lance height and nozzle inclination angle. Furthermore, a theoretical model of cavity dimension is proposed for multiply jets impinging liquid bath on the basis of energy balance at the stagnation point of cavity.