学术
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]宝钢股份不锈钢分公司,上海200431 [2]北京科技大学,北京100083
摘 要:
利用扫描电镜对镁钙砖反应层进行能谱分析，研究了120tAOD氧化期渣碱度（CaO／Si02-1．0—3．1）及渣中TFe（5．0％～20．0％）、MgO（1．7％-12．0％）、Cr20，（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％Mso、15％-30％Cr2O3时对炉衬侵蚀的影响较小。[著者文摘]
文章出处:
《特殊钢》-2008年1期 -48-50页
栏目信息:
分 类 号:
Effect of AOD Oxidizing Slag on Magnesia-Calcia Lining Erosion
Lu Bin, Li Donggang , Chi Hebing , Zheng Hongguang , Shi Jinhong and Chen Weiqing （1 Special Steel Co, Baosteel Co Ltd, Shanghai 200431 ; 2 Science and Technology University, Beijing 100053）
Abstract:
The effect of slag basicity （ CaO/SiO2- 1.0 - 3.1 ）, TFe （5.0% - 20. 0% ）, MgO （ 1.7% - 12. 0% ）, Cr203 （ 8.0% - 30.0% ） in slag on magnesia-calcia lining of an 120 t VOD unit has been studied by using scanning electron 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 basicity （ CaO/SiO2 ≥3） and decreasing TFe content in slag （ ≤ 15% ）, the lining erosion decreased obviously; and as MgO content was 4% - 12%, Cr203 was 15% - 30%, the effect on lining erosion was minor.[著者文摘]
Key words:
AOD, Oxidizing Slag, Magnesia-Calcia Lining, Erosion
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