煤矿安全2017，Vol.48Issue(7)：192-195,4.DOI:10.13347/j.cnki.mkaq.2017.07.052
新阳煤矿高钙煤矸石热活化特性研究
Study on Thermal Activation Characteristics of High Calcium Coal Gangue from Xinyang Coal Mine
摘要
Abstract
Thermal decomposition process and activation characteristics after different temperature thermal excitation of high calcium coal gangue,from Xinyang Coal Mine,are studied by the methods of thermal gravimetric analysis,conductivity and pH test,ICP-AES ion concentration detection experiment.The results indicate that the phase change of coal gangue shows four stages:volatilization of absorbed water,weightlessness stability,volatilization of structural water and organic carbon,mineral decomposition.And with the rise of activated temperature,conductivity,activated ion concentration will decrease in distilled water,and a high pH dissolution solution is formed;solution pH test shows that there will form a high pH,and strong polarity and alkali environment when high calcium coal gangue is dissolved in the distill water.关键词
高氧化钙/电导率/活性离子浓度/pH值/强碱强极性/热重分析Key words
high CaO/conductivity/active ion concentration/pH/strong polarity and alkali/thermal gravimetric analysis分类
矿业与冶金引用本文复制引用
刘国艳,郭育霞,冯国瑞,戚庭野,杜献杰,白锦文,宋凯歌..新阳煤矿高钙煤矸石热活化特性研究[J].煤矿安全,2017,48(7):192-195,4.基金项目
教育部博士基金资助项目(20121402120013) （20121402120013）
山西省青年科学基金资助项目(2014021035-1) （2014021035-1）
国家自然科学基金优秀青年科学基金资助项目(51422404) （51422404）
