论文部分内容阅读
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 the top and bottom rock of coal seams produced by Du’erping mine in the northeast of Xishan coalfield were qualitatively analyzed by X-ray diffraction (XRD). It was found that the coal gangue after spontaneous combustion not only reduced the mineral species, In the process, a large amount of harmful gas will also be generated. When recycling coal gangue, measures should be taken to minimize the occurrence of spontaneous combustion so as to increase the recovery and utilization of minerals. The top and bottom floor rock properties are relatively stable , And participation in spontaneous combustion is not high.