ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2013, Vol. 34 ›› Issue (3): 39-41.

• 工艺技术 • 上一篇    下一篇

烟气分析在100 t转炉深脱磷工艺的应用

秦登平1,杨建平1,危尚好1,吕延春2,李永生1   

  1. 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
  • 收稿日期:2012-12-16 出版日期:2013-06-01 发布日期:2022-09-17
  • 作者简介:秦登平(1978-),男,硕士研究生.高级工程师,转炉炼钢工艺。

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

Qin Denping1 , Yang Jianping1 , Wei Shanghao1, Lil Yanchun2 ,Li Yongsheng1   

  1. 1 Shouqin Metal Materials Co Ltd, Qinhuangdao 066326 ;
    2 Research Institute of Technology, Shougang Group, Beijing 100043
  • Received:2012-12-16 Published:2013-06-01 Online:2022-09-17

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。

关键词: 100t转炉, 炼钢, 烟气分析, 终点控制, 低磷钢

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.