首页|Analysis of destructive effect of Zn on carbon brick and way of Zn into carbon brick
Analysis of destructive effect of Zn on carbon brick and way of Zn into carbon brick
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
The service life of a blast furnace depends largely on the degree of damage to the carbon brick in the hearth.Carbon brick and ramming material in the hearth of a 1780 m3 blast furnace after shutdown were sampled and investigated.It was found that the substances in the cracks of the carbon brick near and above the taphole were ZnO and Zn2SiO4,whereas the substances in the cracks of the carbon brick below the taphole were ZnS.The reaction of Zn with CO,SiO2,and FeS generates ZnO,Zn2SiO4,and ZnS,resulting in volume expansion,which is an important reason for the cracking of carbon brick.Simultaneously,several obvious Zn vapor flow channels were found in the ramming material,through which Zn vapor could enter the carbon brick,causing damage to the carbon brick.Increasing the compactness of the ramming material is beneficial to preventing Zn vapor from entering the carbon brick through the voids in the ramming material,reducing the destructive effect of Zn on the carbon brick and further extending the service life of the blast furnace.
ZnBlast furnaceCarbon brickRamming materialCrack
Peng-bo Liu、Shu-sen Cheng、Yu-qing Xue、Xiao-man Cheng、Zhao Liu
展开 >
School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China
Ministry of Ironmaking,Shangdong Taishan Steel Group Co.,Ltd.,Taian 271000,Shandong,China
万方数据
维普
