Application of Off-Gas Analysis for Deep-Dephosphorization Process of 100 t BOF

秦登平; 杨建平; 危尚好; 吕延春; 李永生

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Application of Off-Gas Analysis for Deep-Dephosphorization Process of 100 t BOF

更新时间：2026-01-21

- Application of Off-Gas Analysis for Deep-Dephosphorization Process of 100 t BOF
- Special Steel Vol. 34, Issue 3, Pages: 39-41(2013)
- 作者机构：
  
  1. 首秦金属材料有限公司,秦皇岛,066326
  2. 首钢技术研究院,北京,100043
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：16 December 2012，
  
  Online First：17 September 2022，
  
  Published：17 September 2013
- 稿件说明：
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秦登平, 杨建平, 危尚好, et al. Application of Off-Gas Analysis for Deep-Dephosphorization Process of 100 t BOF[J]. Special Steel, 2013, 34(3): 39-41.
DOI：

秦登平, 杨建平, 危尚好, et al. Application of Off-Gas Analysis for Deep-Dephosphorization Process of 100 t BOF[J]. Special Steel, 2013, 34(3): 39-41. DOI：

摘要

基于对脱磷工艺的理论分析

通过100 t转炉烟气分析控制熔炼过程、终点温度、过程化渣控制和预测终点磷含量以获得低磷钢水。首秦金属材料公司100 t顶底复吹转炉所用铁水的硅含量为0.2%～0.8%

磷含量0.052%～0.090%

管线钢的生产结果表明

烟气分析终点温度(1 580～1 650℃)命中率能达到95%以上;模型预测磷含量与转炉终点实际磷含量分别为0.007 6%和0.0074%

通过烟气分析实现了转炉终点磷含量≤0.010%的目标。

Abstract

Based on theoretical analysis on dephosphorization in steelmaking process

the off-gas analysis is used to control steel melting process and end-point temperature of molten steel

control slag melting process

forecast end-point phosphorus content in steel and get low phosphorus molten steel. For 100 t top and bottom combined blown converter at Shouqin Metal Materials Co Ltd

the silicon content in hot metal is 0. 2% ~ 0. 8% and the phosphorus content is 0. 052% ~ 0. 090%

the pipeline steel production results show that by off-gas analysis the percentage of hits for end-point temperature of molten steel (1 580 ~ 1 650 ℃)is more than 95%

and the forecasting by model and the measuring BOF end-point phosphorus content are respectively 0.007 6% and 0.007 4%. The aim of BOF end-point phosphorus content ≤ 0. 010% is realized by off-gas analysis.

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