炼铜诺兰达炉用镁铬砖损毁机理的探讨  

Wear mechanism of MgO-Cr_2O_3 bricks for Noranda furnace

作　　者：王继宝[1] 梁永和[2] 李勇[1] 舒旭波 曹友清[1] 

机构地区：[1]中钢集团耐火材料有限公司,洛阳471039 [2]武汉科技大学 [3]大冶有色金属有限公司

出　　处：《耐火材料》2007年第1期74-76,79,共4页Refractories

摘　　要：简要介绍了诺兰达炉用耐火材料的现状,并以风口区使用后的镁铬残砖为试样,采用化学分析、SEM和EDAX等手段对其侵蚀机理进行了分析研究。结果表明:铜渣对镁铬耐火材料的侵蚀,在工作面以熔蚀为主;在砖体内部主要以锍渗透为主。锍渗透的主要途径为开口气孔、晶界及微裂纹。The present application status of refractories for Reactor Noranda furnace is introduced. Taking the used magnesia -chrome bricks at the tuyere as samples,the corrosion mechanism was studied by chemical analysis,SEM and EDAX. Results showed that the corrosion at the working face was mainly due to copper slag corrosion. However,corrosion inside the bricks was mainly because of sulfonium penetration through open pores,crystal interfaces and micro-cracks.

关 键 词：诺兰达炉 镁铬砖 抗侵蚀性 

分 类 号：TQ172.622[化学工程—水泥工业]