| 有害元素对高炉炉缸侧壁碳砖的侵蚀 |
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| 引用本文： | 祁成林,张建良,林重春,尹坚,常健,卢伟佳.有害元素对高炉炉缸侧壁碳砖的侵蚀[J].北京科技大学学报,2011,33(4):491-498. |
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| 作者姓名： | 祁成林 张建良 林重春 尹坚 常健 卢伟佳 |
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| 作者单位： | 北京科技大学冶金与生态工程学院;湖南华菱湘潭钢铁有限公司;南昌长力钢铁股份有限公司; |
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| 摘 要： | 对湘钢2号高炉炉缸七个有代表部位的样品进行扫描电镜、能量色散谱、X射线衍射和原子吸收光谱分析,研究有害元素对高炉炉缸侧壁碳砖的侵蚀以及粉化断裂机理.结果表明,高炉炉缸不同部位的碳砖侵蚀机理不同.第一层以有害元素在碳素熔损反应中的催化作用及生成白榴石为主;上部碳砖侵蚀以K渗透到砖缝中,改变砖质为主;风口以Zn侵蚀为主;铁口K含量较多,另有Pb富集.同种有害元素在不同部位侵蚀碳砖的机理有所不同.K元素在最上部以催化作用为主,在下部以渗透到碳砖内部使碳砖改性为主;Zn在风口碳砖有明显的结晶,在炉缸炉底上部含有大量的Zn并没有结晶,而是附着在砖表面上部.
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| 关 键 词： | 高炉 炉缸 碱金属 侵蚀 |
Erosion of carbon bricks at the hearth sidewall by harmful elements in a blast furnace |
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| QI Cheng-lin,ZHANG Jian-liang,LIN Chong-chun,YIN Jian,CHANG Jian,LU Wei-jia.Erosion of carbon bricks at the hearth sidewall by harmful elements in a blast furnace[J].Journal of University of Science and Technology Beijing,2011,33(4):491-498. |
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| Authors: | QI Cheng-lin ZHANG Jian-liang LIN Chong-chun YIN Jian CHANG Jian LU Wei-jia |
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| Institution: | QI Cheng-lin1),ZHANG Jian-liang1),LIN Chong-chun1),YIN Jian2),CHANG Jian3),LU Wei-jia1) 1) School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China 2) Hunan Valin Xiangtan Iron and Steel Co.Ltd.,Xiangtan 411100,China 3) Nanchang Changli Iron and Steel Co.Ltd.,Nanchang 330001,China |
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| Abstract: | Seven samples of a blast furnace at representative positions were analyzed by scanning electron microscopy(SEM),energy dispersive spectrometry(EDS),X-ray diffraction(XRD) and atomic absorption spectrometry to study the erosion of carbon bricks at the BF hearth sidewall by harmful elements and the mechanism of pulverizing fracture.The results show that the erosion mechanism of carbon bricks at different parts of the hearth is different.In the first layer the erosion is mainly caused by the catalytic effects ... |
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| Keywords: | blast furnaces hearths alkali metals erosion |
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