ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2011, Vol. 32 ›› Issue (2): 30-33.

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An Analysis on Desulphurizing Efficiency during 110 t EBT EAF-LF-RH-CC Process for Production of Seamless Tube Steel 12MnV

Wang Jinghui1, Li Jingshi1, Jiang Guilian2, Sun Haibo1, Zheng Quanzhen3   

  1. 1 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ；
    2 Tianjin Steel Tube Corp, Tianjin 300301;
    3 Xinxing Pipes Co Ltd, Handan 056300
  • Received:2010-12-13 Online:2011-04-01 Published:2022-11-09

110 t EBT EAF-LF-RH-CC工艺生产无缝管钢12MnV的脱硫分析

王敬慧1,  李京社1, 姜桂莲2, 孙海波1, 郑全振3   

  1. 1 北京科技大学冶金生态学院，北京100083；
    2 天津钢管公司，天津300301 ；
    3 新兴铸管股份有限公司，邯郸056300)
  • 作者简介:王敬慧(1986-),女，硕士研究生,2008年河北工程大学毕业,RH喷粉脱硫精炼工艺研究。

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Abstract: The steel 12MnV with ≤0. 003% S is produced by operating such as adding lime in LF, controlling aluminum content at end of LF, injecting 80CaO-20CaF2 powder in RH process and feeding aluminium wire at end of RH, and feeding calcium-silicon wire after RH process. The desulphurization data show that during the 110 t EAF-LF-RH-CC flow sheet the LF average desulphurizing efficiency is up to 88% , the RH average desulphurizing efficiency is less than 30% ; during steelmaking process for steel deoxidizing by aluminium, in non-feeding aluminium wire condition, with decreasing S content the Al content in steel decreases； and it is favourable for RH desulphurization, as there is sufficient Al in steel to dioxidize before RH process.

Key words: 110 t EBT EAF-LF-RH-CC, Steel 12MnV, Desulphurization, Analysis

摘要： 通过LF加石灰,控制LF末期铝含量,RH过程喷80CaO-20CaF2粉,RH终点喂铝线,RH结束后喂硅钙线等操作生产≤0.003%S的12MnV钢。根据脱硫数据表明,在110 t EAF-LF-RH-CC流程中LF平均脱硫率达88%,RH平均脱硫率不足30%;铝脱氧钢的冶炼过程中,在不喂铝丝的情况下,随S含量降低,钢中Al含量降低;在RH前钢中应有足够的Al脱除钢中的氧,以利于RH脱硫。

关键词: 110t EBT EAF-LF-RH-CC, 12MnV钢, 脱硫, 分析

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