Original scientific paper

A mathematical model of cavity depth in converter steelmaking

D. Xu ; Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Hebei University of Engineering, Handan 056038, China
B. Zheng ; Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Hebei University of Engineering, Handan 056038, China
L. X. Guo ; Engineering Research Center for High Toughness Wind Tower Steel of Hebei Province, Hebei Puyang Iron and Steel Co., Ltd., Handan 056305, China
L. Zheng ; Engineering Research Center for High Toughness Wind Tower Steel of Hebei Province, Hebei Puyang Iron and Steel Co., Ltd., Handan 056305, China

Abstract

In this study, cold model experiments were carried out to investigate the cavity depth. It was found that the existing model prediction deviated from the experimental results at higher gas flow rate. The normalized linear relationship was obtained between the dimensionless characteristic cavity depth (n₀/H) and a combined dimensionless parameter of the Froude number (Fr) and the ratio of nozzle diameter to jet height (d_e/H). Further, the linear law of the slope and the intercept of normalized fitting line with the nozzle diameter were obtained.

Keywords

steelmaking; converter; nozzle diameter; cavity depth; mathematical model

Hrčak ID:

265906

URI

https://hrcak.srce.hr/265906

Publication date:

1.4.2022.

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