不同产地煤矸石特征及其火山灰活性研究  

Study on Different Coal Rejects Features and Volcanic Ash Activity from Different Areas

作　　者：顾炳伟[1,2] 王培铭[2] 

机构地区：[1]淮海工学院土木工程学院,江苏连云港222005 [2]同济大学先进土木工程材料教育部重点实验室,上海200092

出　　处：《煤炭科学技术》2009年第12期113-116,74,共5页Coal Science and Technology

基　　金：国家重点基础研究发展规划(973)资助项目(2001CB610704)

摘　　要：采用X射线荧光及衍射分析仪对各地煤矸石的化学及矿物成分进行了定性和定量研究，并介绍了各地煤矸石经过热激发后的火山灰活性特征。结果表明：煤矸石的化学成分与煤矸石的岩石类型密切相关，煤矸石的矿物成分随地域分布呈现区域性差异，北方煤矸石属高岭石型煤矸石；南方煤矸石属于云母型煤矸石；各地热激发煤矸石的最佳激发温度在600-800℃变化；北方热激发煤矸石的火山灰活性指数为85％-102％，南方热激发煤矸石的火山灰活性指数为72％。85％．活性指数随地质年代从老到新呈现马鞍状的变化特征。The X ray fluorescent and diffraction analyzer were applied to qualitatively and quantificationally study on the chemical and mineral compositions of coal rejects from different places. The paper introduced the features of the volcanic ash activity of the different coal rejects after the thermal excitation. The results showed that the chemical composition of the coal rejects had a close relation with the rock type of the coal rejects and the mineral composition of the coal rejects would be locally different with the location distribution. The coal re- jects in the north part of China would be the kaolinite type coal rejects and the coal rejects in the south part of China would be the mica type coal rejects. The optimized thermal excitation temperature of the different thermal excitation coal rejects from the different places in China would be arranging from 600 ~ 800 ~C. The volcanic ash activity index of the thermal excitation coal rejects from the north part of China would be 85% ~ 102% and the activity index of the thermal excitation coal rejects from the south part of China would be 72% ~ 85%. The activity index with the geological ages from old to new would have a saddle type variation feature.

关 键 词：煤矸石 化学成分 矿物成分 火山灰活性 

分 类 号：TU52[建筑科学—建筑技术科学] TQ172[化学工程—水泥工业]