棕刚玉收尘粉回收利用的研究  

Study on recovery and utilization of brown corundum dust collection powder

作　　者：杨社彪 冯超强 张晓瑞 尚学军 Yang Shebiao;Feng Chaoqiang;Zhang Xiaorui;Shang Xuejun(Puyang Refractories Group Co.,Ltd.,Puyang 457100,China)

机构地区：[1]濮阳濮耐高温材料(集团)股份有限公司

出　　处：《耐火与石灰》2019年第4期20-25,共6页Refractories & Lime

摘　　要：为了研究证实棕刚玉收尘粉可以替代85特级高铝细粉在耐火材料中的应用,对不同厂家的棕刚玉收尘粉Z1、Z2及85特级高铝细粉分别进行了化学分析、粒度分析、XRD、SEM及EDS分析,然后将棕刚玉收尘粉Z1、Z2分别替代LMG(铝镁浇注料)配方中85特级高铝细粉进行试验。结果表明:棕刚玉收尘粉Z1、Z2主要化学成分、主晶相、粒度大小及分布范围与85特级高铝细粉相差不大,但在颗粒显微形貌、杂质成分含量方面有所不同;以棕刚玉收尘粉Z1、Z2替代85特级高铝细粉使用的铝镁浇注料,在不同温度下的常温物理性能、高温热震稳定性以及抗渣侵蚀性能与85特级高铝细粉作为基质的铝镁浇注料性能相比没有明显区别。In this paper,we began a study of the substitution of brown corundum dust collection powder to the Al2O3≥85%special grade bauxite in refractory.Firstly,the chemical analysis,the grain size analysis,XRD,SEM and EDS of Z1,Z2 and 85 bauxite were comprehensively compared.Then experiments were done to replace of bauxite with dust Z1 and Z2 in the LMG(alumina-magnesia castable).The results confirmed that there are no big differences in the major chemical composition,main phase,particle size distribution between brown corundum dust collection powder and the Al2O3≥85%special grade bauxite.However,morphology of particles and impurity component have some changes.Also,there is no more difference in physical performance at room temperature between the LMG with brown corundum dust and that with the Al2O3≥85%bauxite.Moreover,the above two samples have the similar properties in thermal shock resistance and resistance to slag corrosion.

关 键 词：棕刚玉收尘粉 85特级高铝粉 铝镁浇注料 回收利用 常温物理性能 热震稳定性 抗渣侵蚀性 

分 类 号：TQ175.712.2[化学工程—硅酸盐工业]