3D CFD Model of Ladle Heat Transfer With Gas Injection

Niu, Kaijun; Feng, Weihang; Conejo, Alberto N.; Ramírez-Argáez, Marco A.; Han, Yaling

doi:10.1007/s11663-023-02816-2

Cited by 5 publications

(2 citation statements)

References 44 publications

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“…The ladle, serving as an intermediary vessel between the steelmaking and casting processes, is not only utilized for the transportation and pouring of molten steel but also serves as a crucial container for implementing external refining. Presently, argon stirring ladles are widely employed in secondary refining [1][2][3][4][5], where they facilitate the uniform temperature and composition of molten steel [3,6], accelerate metallurgical reactions [7][8][9][10][11], promote alloy and scrap melting [12][13][14][15][16], eliminate non-metallic inclusions in the steel [16][17][18][19][20][21], effectively enhance steel product quality [22][23][24], improve ladle refining efficiency [3], and reduce production costs. Over the past several decades, numerous physical models [2,4,7,[25][26][27][28][29][30][31][32] and numerical models [33][34][35][36][37][38][39]…”

Section: Introductionmentioning

confidence: 99%

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Effect of Salt Solution Tracer Dosage on the Transport and Mixing of Tracer in a Water Model of Asymmetrical Gas-Stirred Ladle with a Moderate Gas Flowrate

Li,

Chen,

Tao

et al. 2024

Symmetry

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In previous research simulating steelmaking ladles using cold water models, the dosage/volume of the salt tracer solution is one of the factors that has been overlooked by researchers to a certain extent. Previous studies have demonstrated that salt tracers may influence the flow and measured mixing time of fluids in water models. Based on a water model scaled down from an industrial 130-ton ladle by a ratio of 1:3, this study investigates the impact of salt tracer dosage on the transport and mixing of tracers in the water model of gas-stirred ladle with a moderate gas flow rate. A preliminary uncertainty analysis of the experimental mixing time is performed, and the standard deviations were found to be less than 15%. It was observed in the experiments that the transport paths of tracers in the ladle can be classified into two trends. A common trend is that the injected salt solution tracer is asymmetrically transported towards the left sidewall of the ladle by the main circulation. In another trend, the injected salt solution tracer is transported both by the main circulation to the left side wall and by downward flow towards the gas column. The downward flow may be accelerated and become a major flow pattern when the tracer volume increases. For the dimensionless concentration curve, the sinusoidal type, which represents a rapid mixing, is observed at the top surface monitoring points, while the parabolic type is observed at the bottom monitoring points. An exception is the monitoring point at the right-side bottom (close to the asymmetric gas nozzle area), where both sinusoidal-type and parabolic-type curves are observed. Regarding the effect of tracer volume on the curve and mixing time, the curves at the top surface monitoring points are less influenced but curves at the bottom monitoring points are noticeably influenced by the tracer volume. A trend of decreasing and then increasing as the tracer volume increases was found at the top surface monitoring points, while the mixing times at the bottom monitoring points decrease with the increase in the tracer volume.

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Section: Introductionmentioning

confidence: 99%

“…Meanwhile, the mixing times at the bottom monitoring points decrease with the increase in tracer volume. 6.…”

mentioning

confidence: 99%

Effect of Salt Solution Tracer Dosage on the Transport and Mixing of Tracer in a Water Model of Asymmetrical Gas-Stirred Ladle with a Moderate Gas Flowrate

Li,

Chen,

Tao

et al. 2024

Symmetry

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Simulation Analysis of Influence of Argon Gas Injection Hole Position on Flow Field in Steel Ladle

Tan,

Yu,

Deng

et al. 2024

JOM

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Multiphase Modeling of Steel-slag Mass Transfer through Distorted Interface in Bottom-stirred Ladle

Ji,

Niu,

Conejo

2024

ISIJ Int.

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A three-dimensional computational fluid-dynamics (CFD) model containing three phases: water, oil, and air was developed to study the mass transfer process at the slagsteel interface in the ladle. The transient mass transfer between slag and metal phases occurred only at the interface and the transient irregular distorted interface was considered. A more realistic concentration distribution and transient variation process of mass transfer in the bottom-blown ladle was obtained.

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3D CFD Model of Ladle Heat Transfer With Gas Injection

Cited by 5 publications

References 44 publications

Effect of Salt Solution Tracer Dosage on the Transport and Mixing of Tracer in a Water Model of Asymmetrical Gas-Stirred Ladle with a Moderate Gas Flowrate

Effect of Salt Solution Tracer Dosage on the Transport and Mixing of Tracer in a Water Model of Asymmetrical Gas-Stirred Ladle with a Moderate Gas Flowrate

Simulation Analysis of Influence of Argon Gas Injection Hole Position on Flow Field in Steel Ladle

Multiphase Modeling of Steel-slag Mass Transfer through Distorted Interface in Bottom-stirred Ladle

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