石灰石微观形貌对其煅烧后物化性能影响拌混合影响  

Effect of M icroscopic Morphology of Lim estone on its Physical and Chemical Properties after Calcining

作　　者：李晨晓 王书桓 赵定国 李宏[2] 薛月凯 Li Chenxiao;Wang Shuhuan;Zhao Dinggguo;Li Hong;Xue Yuekai(Metallurgy and Energy College,North China University of Science and Technology,Tangshan,Hebei,China,Tangshan Key Laboratory of Special Metallurgy and Material Manufacture,Tangshan,Hebei,China;Metallurgical and Ecological Engineer School,University of Science and Technology Beijing,Beijing,China)

机构地区：[1]华北理工大学冶金与能源学院,唐山市特种冶金及材料制备重点实验室,河北唐山063210 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《矿产综合利用》2020年第1期184-187,共4页Multipurpose Utilization of Mineral Resources

基　　金：河北省重点研发计划自筹项目(17214012);华北理工大学博士启动基金(28411099);唐山市特种冶金及材料制备基础创新团队项目(17130202 D);河北省高等学校科学技术研究项目(QN2018167)。

摘　　要：为研究石灰石微观形貌对其煅烧后石灰物性参数及活性的影响,将三种产区的石灰石矿进行了XRF、扫描电镜观察、煅烧、石灰活性检测等一系列等试验。研究石灰石的微观晶粒度对其烧成石灰的孔隙度、水活性的影响。结果表明:三种产区石灰石的晶粒尺寸在10 ~ 50 μm之间,微观晶粒形状和大小有所不同;在相同煅烧温度和时间下,随着石灰石微观晶粒度增大,煅烧后所获得石灰孔隙率越高,石灰活性越大。In order to study the influence of limestone micro-morphology on the parameters and activity of calcined lime,a series of experiments such as X R F,scanning electron microscopy,calcination,and activity detection were performed on the limestone mines from three production areas.The effect of the microscopic grain size of limestone on the porosity and water activity of calcined lime was studied.The results show that the grain size of limestone from the three producing areas is between 10-50 micron.The microscopic grain shape and size of the three are different.At the same calcination temperature and time,as the microscopic grain size of limestone increases,the lime porosity obtained after calcination is higher and lime activity is greater.

关 键 词：炼钢 石灰石 石灰 晶粒尺寸 活性 

分 类 号：TF713.3[冶金工程—钢铁冶金]