MgO及铁相调整对高镁熟料烧成的影响  

Effect of MgO and iron phase on high magnesian clinker firing

作　　者：赵松海[1,2] 刘松辉 魏丽颖[1] 汪澜[1] 管学茂[2] 

机构地区：[1]中国建筑材料科学研究总院绿色建筑材料国家重点实验室,北京100024 [2]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《水泥工程》2014年第4期14-17,共4页Cement Engineering

基　　金：国家"十二五"科技支撑项目(2011BAE27B00)

摘　　要：通过熟料矿物组成计算调整率值,分别在1350℃,1400℃和1450℃条件下烧制了MgO及C4AF含量不同的高镁熟料,并利用化学分析、XRD测试及岩相结构分析等方法,分析了熟料MgO与C4AF对高镁熟料烧成的影响。结果表明：（1）1350℃低温煅烧时,熟料f-CaO含量随MgO增加而显著降低,MgO对熟料烧成有利,而1400℃以上高温煅烧时f-CaO含量却随MgO增加而升高,MgO对熟料烧成不利。（2）熟料中w（MgO）含量在4%~9%时,控制w（C4AF）在14%~14.5%范围内较为合适,1450℃煅烧熟料的w（f-CaO）可满足≤1.5%的要求。By adjusting modulus according to clinker mineral composition calculation, clinker of different content of Cand MgO was burned at temperature of 1350℃,1400℃ and 1450℃ respectively, and with chemical analysis, XRD test and petrographic struc.ture analysis, the impact of Cand MgO on high magnesian clinker firing was analysed. The results show as follow,（1） when burned at a lower temperature of 1clinker fCaO content will significantly decreased with the increase of MgO content, which means MgO content is benefit for clinker firing; and when burned at a high temperature of above 1400℃, there was opposite outcome, which means MgO content is harmful to clinker firing;（3） when clinker MgO content is at 4%~9%, the wCshould be controlled at 14%~14.5%, and the burned clinker fCaO content could satisfy requirement of ≤1.5%.

关 键 词：MGO C4AF 熟料 易烧性 

分 类 号：TQ172[化学工程—水泥工业]