Application and Establishment of a Model for Sulphur Partition Ratio between Slag-Steel in Ladle Furnace (LF) Based on Ion-Molecule Coexistence Theory

储莹; 郭汉杰; 全永志

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Application and Establishment of a Model for Sulphur Partition Ratio between Slag-Steel in Ladle Furnace (LF) Based on Ion-Molecule Coexistence Theory

更新时间：2026-01-21

- Application and Establishment of a Model for Sulphur Partition Ratio between Slag-Steel in Ladle Furnace (LF) Based on Ion-Molecule Coexistence Theory
- Special Steel Vol. 35, Issue 6, Pages: 20-23(2014)
- 作者机构：
  
  1. 北京矿冶研究总院,北京国信安科技术有限公司,北京,100160
  2. 北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 June 2014，
  
  Online First：19 August 2022，
  
  Published：19 August 2014
- 稿件说明：
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储莹, 郭汉杰, 全永志. Application and Establishment of a Model for Sulphur Partition Ratio between Slag-Steel in Ladle Furnace (LF) Based on Ion-Molecule Coexistence Theory[J]. Special Steel, 2014, 35(6): 20-23.
DOI：

储莹, 郭汉杰, 全永志. Application and Establishment of a Model for Sulphur Partition Ratio between Slag-Steel in Ladle Furnace (LF) Based on Ion-Molecule Coexistence Theory[J]. Special Steel, 2014, 35(6): 20-23. DOI：

摘要

基于离子与分子共存理论

通过计算钢包炉（LF）精炼渣结构单元的质量作用浓度

建立了一种计算57CaO-10SiO

-8MgO-25Al

四元渣系与钢液硫分配比的热力学模型

计算得出1630℃LF精炼结束时

该渣系的渣-钢间的硫分配比L

=1115。通过9炉210 t双孔底吹氩LF渣样检测结果表明

当减去因现场和渣系的氧势等条件限制

所存在的定值系统偏差

该模型可有效反映工业生产的LF精炼渣硫分配比。

Abstract

Based on ion-molecule coexistence theory

a thermodynamic model for calculation of sulphur partition ratio between 57CaO-10SiO

-8 MgO-25 Al

quaternary slag series and liquid steel has been established by calculating the mass action concentration of ladle furnace (LF) refining slag structural units to get the sulphur partition ratio between slag-steel of this slag series L

=1115 in end LF refining at 1 630 ℃. The measure results of 9 heats 210 t double bottom nozzle argon blowing LF refining slag samples show that to subtract the existing definite system deviation due to restriction on conditions including worksite and oxygen level of slag series

the model is available to reflect the LF refining slag sulphur partition ratio in commercial steelmaking production.

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