含锆复合相结合镁砖的研究  

A study on MgO bricks containing ZrO_2 composite phases

作　　者：刘孝定[1] 

机构地区：[1]中国建筑材料科学研究院,北京100024

出　　处：《耐火材料》1997年第2期93-97,共5页Refractories

摘　　要：以电熔镁砂、烧结镁砂、锆英砂、自制添加剂、结合剂为基本原料，通过合理级配、高温烧结研制了适用于水泥窑、玻璃窑的新型含锆复合相结合镁质耐火材料。该材料由方镁石、镁铝尖晶石、镁橄榄石、二氧化锆以及含二氧化锆的复合相组成。材料的荷重软化温度T0.6＞1600℃、热震稳定性（1100℃-水冷）＞5次、抗玻璃液碱蒸汽侵蚀试验（ASTM-987-83）判为二级、抗水泥熟料液相侵蚀、有优异的挂窑皮特征。该材料已分别在浮法窑、垂直引上窑、新型大中型干法窑上进行应用试验，取得了良好效果。A new kind Of MgO refractory brick containing ZrO2 composite phase for cement kiln and glass furnace has beendeveloped by usng fused magnesia, calcined magnesia and zircon sand as raw material with binder and additives throughright grading and high temperature sintering. The brick is composed of periclase, MgO-Al2O3 spinel, forsterite, ZrO2 andZnO2 composite phase. Its refractoriness under load: T0.6 >1600℃, thermal shock resistance (1100℃, water cooling)>5 cycle, erosion resistance to glass current and alkali steam(ASTM-987-83): grade 2. It has good feature of kilncoating and has got good feature application results in float process, pittsburgh procere furnaces and new type of middleand large sized dry process rotary kilns.

关 键 词：复合相 耐火材料 氧化锆 镁砖 水泥窑 玻璃窑炉 

分 类 号：TQ175.713[化学工程—硅酸盐工业] TQ175.79