乌达烟煤微观结构参数解算及其与自燃的关联性分析

Calculation of micro-structure parameter of Wuda bituminous coal and relationship-analysis between coal structure and coal spontaneous combustion

借助傅里叶变换红外光谱仪对乌达矿区典型火区的6种煤样的微观结构与煤自燃的关联性进行探讨,通过红外光谱的定性与半定量分析及煤结构参数的解算可知:乌达烟煤分子结构的芳香度和环缩合度较小,烷基侧链的平均长度较短,桥键较多,致使煤结构具有较强的化学活性,易于被氧化,继而导致乌达烟煤易于自燃.

Utilized the FTIR apparatus, six kinds of coal samples of the typical burning districts from Wuda minefield were collected to research the connection between coal-structure and coal spontaneous combustion. Through the qualitative analysis and the semi-quantitative analysis of FTIR spectral analysis and calculating the structure-parameters of coal microscopic structure, some conclusions were got such that the aromatic degree, the ring shrinkingdegree, the oxidized functional group, the alkyl side-chain and the bridge-bonds in coal structure have remarkable influence on coal spontaneous combustion.