Mathematical modelling of slag-metal reactions and desulphurization behaviour in gas-stirred ladle based on the DPM-VOF coupled model

被引：17

作者：

Cao, Qing ^{[1
]}

Nastac, Laurentiu ^{[2
]}

机构：

[1] Hefei Univ Technol, Sch Mech Engn, Hefei, Anhui, Peoples R China

[2] Univ Alabama, Dept Met & Mat Engn, Box 870202, Tuscaloosa, AL 35487 USA

来源：

IRONMAKING & STEELMAKING | 2020年 / 47卷 / 08期

关键词：

CFD modelling; ladle metallurgy; desulphurization; slag-metal reaction; fluid flow; gas stirring; phase interface; coupled model; NUMERICAL-SIMULATION; LIQUID-IRON; FLUID-FLOW; SILICON; PREDICTION; KINETICS; CFD;

D O I：

10.1080/03019233.2019.1629155

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A 3D transient CFD-reaction coupled model is developed to predict the slag-metal reaction and desulphurization kinetics in ladle furnace with both molten slag and air layers considered. The coupled model is able to predict the circulating flow field, capture the transient fluctuation characteristics of slag-air and steel-slag phase interfaces as well as the reaction area. Results also indicate that the distribution and evolution of the steel composition under gas stirring is predicted well. The influence of the chemical compositions of molten steel and slag on sulphur removal efficiency is studied. It is displayed that the Al addition into liquid steel or CaO addition into slag would increase the sulphur distribution ratio, resulting in the improvement of desulphurization efficiency.

引用

页码：873 / 881

页数：9

共 5 条

[1] Effects of Entrained Slag Droplets on Slag-Metal Interface in A Gas-Stirred Ladle
Liu, Yong
Cheng, Shusen
Liu, Tong
ISIJ INTERNATIONAL, 2023, 63 (06) : 1017 - 1024
[2] HYDRODYNAMIC MODELING OF SLAG-METAL INTERACTIONS IN GAS-STIRRED LADLE SYSTEMS
MAZUMDAR, D
GUTHRIE, RIL
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 1990, 43 (03): : 139 - 148
[3] CFD Modeling of Slag-Metal Reactions and Sulfur Refining Evolution in an Argon Gas-Stirred Ladle Furnace
Cao, Q.
Nastac, L.
Pitts, A.
APPLICATIONS OF PROCESS ENGINEERING PRINCIPLES IN MATERIALS PROCESSING, ENERGY AND ENVIRONMENTAL TECHNOLOGIES, 2017, : 435 - 443
[4] Study of inclusions-removal and slag-metal dispersion phenomenon in gas-stirred ladle
Liu, Yong
Cheng, Shusen
Liu, Tong
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING, 2024, 22 (07) : 843 - 853
[5] Numerical Simulation of Slag-metal Reactions and Desulfurization Efficiency in Gas-stirred Ladles with Different Thermodynamics and Kinetics
Lou, Wentao
Zhu, Miaoyong
ISIJ INTERNATIONAL, 2015, 55 (05) : 961 - 969

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