摘要
以高铝矾土熟料、电熔白刚玉、碳化硅、广西白泥、氧化铝微粉为主要原料,亚硫酸纸浆废液为结合剂,制备出水泥窑过渡带用特种硅莫砖,研究了氧化铝微粉加入量对硅莫砖的常温物理性能、抗热震性和耐磨性的影响,并对试样进行XRD和SEM分析。结果表明:随着氧化铝微粉加入量的增加,硅莫砖的耐压强度、体积密度先升高后降低,显气孔率则先降低后升高;抗热震性随微粉加入量的增加先变好后边差的趋势;其中,微粉加入量为4%的硅莫砖综合性能最好,是大型水泥回转窑过渡带的理想内衬材料。
Special silicon mullite brick for transition belt of cement kiln was prepared using bauxite clinke,white fused alumina,silicon carbide,guangxi white clay,alumina micropowder additions as main starting materials,and sulfite pulp waste liquid as binder.Effects of alumina micropowder additions on cold physical properties,thermal shock resistance and abrasion resistance of silicon mullite brick were studied,then the samples were detected by XRD and SEM.The results showed that with alumina micropowder addition increasing,cold strength,bulk density of special silicon mullite brick were first enhanced and then declined,apparent porosity first decreased and then increased;thermal shock resistance of the brick was first enhanced and then declined.When the addition of alumina micropowder was 4%,the silicon mullite brick had the best properties,and the brick as ideal lining materials of the transition belt of large-scale cement rotary kiln.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2013年第5期917-920,共4页
Bulletin of the Chinese Ceramic Society
基金
安徽高校省级科学研究项目(KJ2011Z115)
关键词
氧化铝微粉
硅莫砖
常温性能
alumina micropowder
silicon mullite brick
cold properties
