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

Abstract

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.

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

“…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]…”