摘要
对西山煤田东北部的杜儿坪矿产生的矸石山上自燃后的煤矸石及其煤层顶底板岩石采用X射线衍射分析(XRD)进行定性分析,发现自燃后的煤矸石不仅矿物种类有所减少,在此过程中还会产生大量有害气体,在回收利用煤矸石时应尽量采取措施(降温或者隔绝空气)减少自燃现象的发生,这样可以提高矿物的回收利用率,煤层顶底板岩石的性质较为稳定,且在自燃中参与度不高。
The spontaneous combustion of coal gangue and rock of seam roof and floor on the waste piles in Duerping coal mine which is located in the Northeast of Xishan coalfield was qualitatively analyzed by X-ray diffraction （XRD）, conclude that the mineral species of spontaneous combusted coal gangue not only decreases, but generates a large number of harmful gases during this process, should try to take measures （temperature reduction or isolation air） to reduce the occurrence of spontaneous combustion, which can increase the recycling rate of minerals. The properties of rock from seam roof and floor is more stable, and it hardly participates in spontaneous combustion.
出处
《煤炭技术》
CAS
北大核心
2017年第1期313-314,共2页
Coal Technology
基金
国家自然科学基金项目(41103052
41072116)
关键词
煤矸石
煤层顶底板岩石
XRD
coal gangue
rock of seam roof and floor
X-ray diffraction
