三大率值对烧制水泥熟料固化重金属的影响研究  

Research on influence of three major rate values on solidification of heavy metals in fired cement clinker

作　　者：李飞 LI Fei(Gansu Communications Vocational and Technical College,Lanzhou 730070)

机构地区：[1]甘肃交通职业技术学院,甘肃兰州730070

出　　处：《中国建材科技》2024年第2期83-86,共4页China Building Materials Science & Technology

基　　金：2023年高校教师创新基金项目(2023A-268)。

摘　　要：通过调研多家水泥厂,选定三组率值(率1配方:KH=1.01,SM=2.62,IM=1.37;率2配方:KH=1.01,SM=2.71,IM=1.39;率3配方:KH=1.01,SM=2.71,IM=1.35)进行试验。分别掺入0.5%、1.0%、2.0%的CuO试剂,煅烧至1200℃、1250℃、1300℃、1350℃、1400℃、1450℃,利用化学分析和XRD等方法对熟料进行检测。结果表明,CuO既是矿化剂又是助溶剂;随着煅烧温度的升高,煅烧试样的f-CaO含量总体呈下降趋势;率2配方时的游离氧化钙的含量最少且较稳定;随着重金属掺量的增大,熟料主要矿物相C_(3)S的形成温度明显降低,且在1400℃、1450℃下CuO掺烧量为1.0%和2.0%时均有液相出现。Through conducting research on multiple cement plants,this paper selects three sets of rate values(rate#1 formula:KH=1.01,SM=2.62,IM=1.37;rate#2 formula:KH=1.01,SM=2.71,IM=1.39;rate#3 formula:KH=1.01,SM=2.71,IM=1.35)for testing.Add 0.5%,1.0%,and 2.0%CuO reagents respectively,calcine to 1200℃,1250℃,1300℃,1350℃,1400℃,1450℃,and use chemical analysis and XRD methods to detect the clinker.The results show that CuO is both a mineralizer and a co solvent.As the calcination temperature increases,the f-CaO content of the calcined sample generally shows a decreasing trend.The content of f-CaO in rate#2 is the least and relatively stable.With the increase of heavy metal content,the formation temperature of the main mineral phase C_(3)S in the clinker significantly decreases,and liquid phase appears when the CuO content is 1.0%and 2.0%at 1400℃and 1450℃.

关 键 词：CUO 水泥熟料 易烧性 F-CAO 

分 类 号：U414[交通运输工程—道路与铁道工程]