玄武岩纤维生产炉窑耐火材料侵蚀研究  

Corrosion Research on Refractories in the Furnace Used for Manufacturing Continuous Basalt Fibers

作　　者：袁勇 贺攀 邢程鹏 程思颖 刘阳红 何冬东 韩召辉 王智靓 刘作磊 YUAN Yong;HE Pan;XING Chengpeng;LIU Yanghong;HE Dongdong;HAN Zhaohui;WANG Zhiliang;LIU Zuolei(Sichuan Aerospace Tuo Xin Basalt Industrial Co.,Ltd.,Chengdu,610000,China)

机构地区：[1]四川航天拓鑫玄武岩实业有限公司,成都610000

出　　处：《高科技纤维与应用》2018年第6期51-58,共8页Hi-Tech Fiber and Application

基　　金：四川省高新技术发展与产业化重点项目(2018GZ0136);四川省科技厅计划重点研发项目(2017GZ0116)

摘　　要：以玄武岩纤维生产炉窑顶部加料口上部的刚玉莫来石砖和侧壁内衬高铬砖作为研究对象,采用XRD、XRF、SEM和EDX等分析方法,研究了玄武岩熔体对炉窑耐火材料的侵蚀行为,结果表明炉窑顶部的刚玉莫来石砖以50 mm/a侵蚀速率被侵蚀,刚玉莫来石砖内部的刚玉和莫来石晶粒与玄武岩反应生成低熔点的钙长石、橄榄石、铁尖晶石等物质,同时受到挥发分气流的物理性冲刷,导致刚玉莫来石砖耐侵蚀性能差;而炉窑内侧壁高铬砖耐侵蚀性较好,腐蚀速率为2. 5 mm/a,高铬砖与熔体接触区以化学反应结合物理磨损侵蚀方式为主,同时,Fe元素在高铬砖侵蚀过程中起着固溶-传质的作用,加速炉衬材料侵蚀。Crown corundum-mullite brick and high chromic sidewall brick in top feeding port upper part of basalt furnace were used as research objects.XRD,XRF,SEM and EDX were employed to investigate corrosion mechanism of basalt melt on furnace lining.Results indicated corundum and mullite particles in bricks reacted with basalt melt to formed low melting phases,such as anorthite,chrysolite,hercynite,and worn by volatile airflow,leading to bricks corroded at high corrosion rate of 50 mm/a.Corrosion rate of high chromic brick with high corrosion resistance was only 2.5 mm/a.Corrosion of contact area in brick was caused by chemical and physical erosion.Results indicated Fe plays an important role of solid solution-mass transfer in the whole corrosion process,accelerating corrosion of lining materials.

关 键 词：刚玉莫来石砖 高铬砖 玄武岩 固溶 侵蚀 

分 类 号：TQ175[化学工程—硅酸盐工业]