无烟煤中镜煤的结构分析

以某矿区无烟煤中的镜煤为研究对象,利用XRD分析了4个煤样中镜煤的结构特征。由XRD分析可看出:随着煤变质程度的增大,γ带、002峰和100峰峰位对应的衍射角逐渐变大;芳香度、芳香环层片的有效堆砌层数、堆砌簇中芳香环层片的平均直径、芳香环层片沿芳核垂直方向的有效堆砌高度逐渐增大,而芳香环层片的层间距、芳香环层片的链间距则逐渐减小。

Analysis on the structural characteristics of vitrains in anthracites

In this paper the structural characteristics of vitrain in anthracite from a certain mining area was investigated by XRD.Through XRD analysis there were some results: with the increasing of coal rank,the corresponding diffraction angles from γ-line,002 and 100 peaks gradually increased,the aromatic degree(fa)、effective stacking layers of aromatic ring(Me)、average diameter of aromatic ring stacking(La) and effective stacking height of aromatic ring stacking alongst aromatic nuclear vertical direction(Lc) also increased,whereas the interlayer spacing and the interchain spacing between aromatic rings layers decreased.