静态破碎剂水化反应分析  

Analysis of hydration reaction of static crushing agent

作　　者：蔡勇智 刘玉法 杜光钢 陈信作 梁霁兴 刘磊 CAI Yongzhi;LIU Yufa;DU Guanggang;CHEN Xinzuo;LIANG Jixing;LIU Lei(Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan Province,China;Faculty of Public Security and Emergency Management,Kunming University of Science and Technology,Kunming 650093,Yunnan Province,China;New Blasting Technology Engineering Research Center of Yunnan Provincial Education Department,Kunming 650093,Yunnan Province,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]昆明理工大学公共安全与应急管理学院,云南昆明650093 [3]云南省教育厅爆破新技术工程研究中心,云南昆明650093

出　　处：《化学工程》2024年第1期76-81,共6页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(11862010);云南省教育厅科学研究基金(2020Y0088)。

摘　　要：利用马弗炉高温真空煅烧碳酸钙烧制氧化钙熟料,后经XRD分析煅烧熟料矿物组成、SEM(扫描电镜)观察和分析固体物质的表面形态和结构,并利用煅烧熟料配制静态破碎剂,给出了静态破碎剂的最优配比,研究了水灰比、环境温度以及拌和水温对静态破碎剂水化反应的影响。结果表明:随着煅烧温度的升高,碳酸钙分解成氧化钙的程度越高,氧化钙晶体收缩愈紧密,晶体微孔隙逐渐消失且变得越致密,表观密度增大,反应活性降低。静态破碎剂在测试钢管中的峰值温度随水灰比的增大先增大后减小;随环境温度以及拌和水温的升高而升高;但其温度随时间变化趋势大体一致。Calcium oxide clinker was produced by calcining calcium carbonate under high temperature and vacuum in a muffle furnace.Then XRD was used to analyze the mineral composition of the calcined clinker,SEM was used to observe and analyze the surface morphology and structure of the solid material.The static crushing agent was prepared using calcined clinker,and the optimal ratio of static crushing agent was given.Then,the effects of water cement ratio,environmental temperature,and mixing water temperature on the hydration reaction of static crushing agent were studied.The results show that as the calcination temperature increases,the degree of decomposition of calcium carbonate into calcium oxide increases,the contraction of calcium oxide crystals becomes tighter,the micropores of crystals gradually disappear and become denser,the apparent density increases,and the reaction activity decreases.As the water cement ratio increases,the peak temperature of the hydration reaction of the static crushing agent in the tested steel pipe first increases and then decreases,and increases with the increase of environmental temperature and mixing water temperature.However,the trend of hydration reaction temperature of static crushing agent over time is generally consistent.

关 键 词：氧化钙 XRD矿物组成分析 SEM 水化反应 静态破碎剂 

分 类 号：TQ132.3[化学工程—无机化工]