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lin suan jin zi gao lu yong zhan tu zhuan de yan zhi ji shi yong yan jiu
Author(s): 
Pages: 101-102
Year: Issue:  3
Journal: Research on Iron and Steel

Keyword:  高炉生产粘土砖碱金属高炉炉身酸浸渍沉积炭砖衬冶炼强度破损原因耐火材料;
Abstract: <正> 高炉生产随精料的发展和冶炼强度的提高,不少高炉炉身寿命日趋缩短,重要原因之一就是采用精料以后渣量减少,产生了碱金属在炉内循环富积而严重侵蚀砖衬的新问题。武钢高炉炉身寿命有的仅2~3年,为查明破损原因,对高炉进行了多次破损调查,调查结果表明:高炉的碱负荷为7~9kg/T·Fe;锌负荷为0.6kg/T·Fe,高炉砖衬中存在着严重的碱金属富积,最高碱含量达50.6%,凡是含钾、钠、锌,沉积炭高的砖衬,往往失去强度,破损严重,甚至呈疏松状。残存砖的岩相鉴定也表明,碱金属和锌与砖中莫来石生成新的化合物,同时有促进
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