水泥窑烧成带用方镁石-尖晶石砖的研究  

Study on MgO-MgO·Al_2O_3 Bricks Used Burned Zone of Cement Kiln

作　　者：李国华[1] 田志强[1] 陈树江[1] 田琳[1] 袁林[2] 

机构地区：[1]辽宁科技大学高温材料与镁资源工程学院,鞍山114051 [2]中国建筑材料科学研究总院,北京100024

出　　处：《材料导报（纳米与新材料专辑）》2014年第1期328-330,共3页

基　　金：国家十二五科技支撑项目(2013BAE03B00)

摘　　要：主要研究铁鳞、高铁镁砂两种添加剂及两种添加剂的含量对水泥窑烧成带用方镁石-尖晶石砖结构与性能的影响,并重点研究挂窑皮性能。结果表明:加入铁鳞的试样气孔率高于加入高铁镁砂的试样,并随着加入量增加而升高;耐压强度随着铁鳞含量增加而降低,高铁镁砂的加入引起砖的常温耐压强度不规则变化,当高铁镁砂含量为3%时,耐压强度最大;加入12%高铁镁砂的试样挂窑皮性能最好,抗渗透能力也较好。The effects of iron scales and high iron magnesia as well as the content on microstructure and properties of MgO-MgO·Al2O3 bricks used burned zone of large cement rotary kilns were studied. It focuses on testing coating adherence. The results show that the porosity of adding iron scales sample is higher than the sample by addinghigh iron magnesia, which is increased with increasing of iron scales content; cold crushing strength reduced with con-tent of iron scales. The high iron magnesia cause the irregular change of cold crushing strength, cold crushing strengthwas maximum when high iron magnesia content was 6 % ; coating adherence and resistance to cement clinker permeationwas optimum when adding 12 % high iron magnesia.

关 键 词：MgO-MgO·Al2O3系耐火材料 铁鳞 高铁镁砂 挂窑皮性 

分 类 号：TQ175.73[化学工程—硅酸盐工业]