利用石煤提钒酸浸渣烧制硅酸盐水泥熟料的研究  

Study on Calcination of Cement Clinker by Stone Coal Acid-leaching Vanadium Slag

作　　者：匡洪生 颜文斌[1] 华骏[1] 高峰[1] 蔡俊[1] 何新波[2] 

机构地区：[1]吉首大学化学化工学院,吉首416000 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《硅酸盐通报》2015年第4期1078-1083,共6页Bulletin of the Chinese Ceramic Society

基　　金：湖南省高校科技创新团队支持计划资助;国家科技支撑计划项目(2012BAE06B04)

摘　　要：采用石煤提钒酸浸渣为原料烧制硅酸盐水泥熟料,分别设计了11组熟料组成在1350℃、1400℃和1450℃下进行煅烧,通过差热分析解析酸浸渣配料煅烧熟料的形成过程,用X射线衍射分析了熟料的矿物组成以及水泥水化产物组成,采用扫描电镜分析了矿物的晶体形态。实验表明:利用提钒酸浸渣配料能提高熟料的易烧性,促进熟料矿物的形成。提钒酸浸渣掺量为20%时,所生产的熟料的有利氧化钙含量小于1.0%,矿物形成良好,水泥的水化热达到国家标准。Stone coal acid-leaching vanadium slag was used to prepare portland cement clinker. Clinker of 11 different kinds of compositions was calcined in 1350 ℃ , 1400 ℃ and 1450℃. The formation mechanism was studied by differential thermal analysis （ DTA ）. The contents of clinker and hydrated cement were determined by X-ray diffraction （XRD）. Morphology was confirmed by scanning electron microscope （SEM）. The results demonstrate that adopting vanadium slag improves burnability and facilitate clinker formation. With 20% vanadium slag addition, the clinker forms well with less than 1.0% free CaO and it meets the national standards.

关 键 词：石煤提钒酸浸渣 硅酸盐熟料 矿物形成 水化热 

分 类 号：TQ172[化学工程—水泥工业]