澳斯麦特铜熔炼炉渣线用后铝铬残砖的分析

摘要

对澳斯麦特铜熔炼炉渣线部位使用后的铝铬砖进行了XRD、SEM和EDS分析结果表明:在使用过程中,铝铬砖中的Al2O3、Cr2O3与渗入熔渣中的FeO反应生成高熔点的铁铝尖晶石和铁铬尖晶石,从而阻止炉渣对耐火材料的进一步侵蚀,延长炉衬的使用寿命；炉渣中的SiO2和CaO主要与砖中的Al2O3反应生成低熔点的硅酸盐相Ca(Al2Si2O8).%The used alumina-chrome brick for the slag line in an Ausmelt copper smelter was analyzed byrnXRD,SEM and EDS.The results show that: during service,AI2O3 and Cr2O3 in the alumina-chrome brickrnreact with FeO in the slag generating high melting point hercynite and ferropicotite,which can stop furnacernslag corrosion to refractories and prolong the service life of smelter lining :SiO2 and CaO in the slag mainlyrnreact with AI2O3 in the brick producing low melting point silicate phase Ca(AI2Si208).