Influence of Physical Properties of Slag and Operational Parameters on Slag Splashing Process in an Oxygen Convertor

Leão, Paula Maria Gomes Cunha; Rodrigues, Eliana Ferreira; Silva, Carlos Antônio da; Silva, Itavahn Alves da; Seshadri, Varadarajan

doi:10.1007/978-3-319-48769-4_111

Cited by 1 publication

(1 citation statement)

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“…The numerical simulation results were in agreement with the experimental results of the physical model. Leão et al [18] performed transient simulations of slag splashing behavior using Fluent to investigate the effects of fluid temperature, density, viscosity, and interfacial tension on the effect of slag splashing. Cao et al [19] analyzed the multiphase interaction behavior of a supersonic oxygen jet impinging on a free interface by numerical simulation and found that slag viscosity and surface tension have little effect on the generation rate of splashing droplets.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of the Slag Splashing Process in A 120 Ton Top-Blown Converter

Yang

Sun

et al. 2023

Metals

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Slag splashing operations at the end of the converter blow process can improve the furnace liner life and the converter operation rate. However, the effect of factors on slag splashing at actual dimensions is yet to be fully understood. A three-dimensional transient mathematical model coupled with the response surface analysis has been established to investigate the effects of the amount of remaining slag, oxygen lance height, and top-blowing nitrogen flowrate on the slag splashing process in a 120 ton top-blown converter. The predicted splashing density is validated by the experimental data. The numerical simulation results show that the splashing density and the splashing area ratio increase with the amount of remaining slag, which has the greatest effect on slag splashing. As the oxygen lance height decreases, the splashing density and the splashing area ratio first increase and then decrease. The top-blowing nitrogen flowrate is positively correlated with the splashing area ratio. When the oxygen lance height is high, the impact of the top-blowing nitrogen flowrate on the splashing density is not significant. The splashing density increases with increasing top-blowing nitrogen flowrate as the oxygen lance height is low.

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Section: Introductionmentioning

confidence: 99%