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 ›› 2008, Vol. 29 ›› Issue (1): 48-50.

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Effect of AOD Oxidizing Slag on Magnesia-Calcia Lining Erosion

Lu   Bin1,2,  Li   Donggang1,  Chi   Hebing1,  Zheng  Hongguang1,  Shi  Jinhong2,  Chen   Weiqing2      

  1. 1 Special Steel Co,Baosteel CoLtd,Shanghai 200431;
    2 Science and Technology University,Beijing 100083
  • Online:2008-02-01 Published:2022-12-14

AOD氧化期渣对镁钙质炉衬侵蚀的影响

陆 斌 1 2,  李 冬 刚1,  池 和 冰1,   郑 宏 光1 ,  师金红2,  陈伟庆2   

  1. 1宝钢股份不锈钢分公司，上海200431;
    2北京科技大学，北京100083
  • 作者简介:陆斌(1963-),男，工程师，1986年上海大学毕业，不锈钢 品种研究与开发。

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Abstract: The effect of slag basicity(CaO/SiO2- 1.0~3. 1),TFe(5.0%～20.0%),MgO(1.7%～12.0%), Cr2O3(8.0%~30.0%)in slag on magnesia-calcia lining of an 120 t VOD unit has been studied by using scanning elec- tron microscope analyzing the energy dispersive spectrum of reaction layer of magnesia-calcia brick.Results showed that the slag basicity and TFe content in slag were the important factors for magnesia-calcia lining erosion; with increasing slag ba- sicity(CaO/SiO2≥3)and decreasing TFe content in slag(≤15%),the lining erosion decreased obviously; and as MgO content was4%～12%,Cr2O3 was 15%～30%,the effect on lining erosion was minor.

Key words: AOD,Oxidizing Slag,Magnesia-Calcia Lining,Erosion

摘要： 利用扫描电镜对镁钙砖反应层进行能谱分析,研究了120t AOD氧化期渣碱度(CaO/SiO2-1.0～3.1)及渣中TFe(5.0%～20.0%)、MgO(1.7%～12.0%)、Cr2O3(8.0%～30.0%)对镁钙质炉衬侵蚀的影响。结果表明,氧化期渣碱度和渣中TFe含量是镁钙质炉衬侵蚀的重要影响因素,增加炉渣碱度(CaO/SiO2≥3),降低渣中TFe含量(≤15%)可明显减少对炉衬的侵蚀。渣中含4%～12%MgO、15%～30%Cr2O3时对炉衬侵蚀的影响较小。

关键词: AOD, 氧化期渣, 镁钙炉衬, 侵蚀

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