神木杨伙盘矿区地下煤火对煤结构的影响  

Impact from Underground Coal Fire on Coal Structure in Yanghuopan Mine Area, Shenmu

作　　者：王楠 李焕同[1,2] 崔胜 王辉[3] 朱志蓉[1] 左晓峰 赵洲 Wang Nan;Li Huantong;Cui Sheng;Wang Hui;Zhu Zhirong;Zuo Xiaofeng;Zhao Zhou(College of Geology and Environment,Xi’an University of Science and Technology,Xi’an,Shaanxi 710054;Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation,Xi'an,Shaanxi 710054;Geological Exploration Institute of China Coal Aerial Photogrammetry and Remote Sensing Bureau,Xi’an,Shaanxi 710054)

机构地区：[1]西安科技大学地质与环境学院,西安710054 [2]陕西省煤炭绿色开发地质保障重点实验室,西安710054 [3]中煤航测遥感局煤航地质勘查院,西安710054

出　　处：《中国煤炭地质》2020年第4期1-5,共5页Coal Geology of China

基　　金：国家自然科学基金项目(41502160,41802187);西安科技大学优秀青年科技基金(编号2019YQ2-08)资助。

摘　　要：运用X射线衍射分析(XRD)、激光拉曼光谱(LRS)以及傅里叶红外光谱(FTIR)等手段,对神木杨伙盘矿区受地下煤火烘烤的煤进行研究,研究表明:受过煤火烘烤会使煤结构中芳香层片的间距d 002、延展度L a增大,堆砌度L c减小。虽然煤结构中含氧官能团、脂肪族—CH 2、—CH 3伸缩振动减弱、羟基含量减少,代表有序的sp 2结构含量增加,但结构整体还是以无序碳结构增多为主,半高宽比值ID 1/IG与未受烘烤的原煤对比其值增大,显示出受煤火烘烤在一定程度会阻碍煤结构向有序化程度的进行。Means of X-ray diffraction analysis(XRD),laser Raman spectroscopy(LRS)and Fourier-transform infrared spectroscopy(FTIR)have been used in study on coal firing by underground coal fire in the Yanghuopan mine area,Shenmu.The study has shown that after firing,the interval d 002 between aromatic layers and ductility L a in coal structure will increase,while stackability L c decrease.Although coal structure oxo functional groups,aliphatic–CH 2 and–CH 3 elasticity and vibratility have been weakened,hydroxide radicals reduced,representative ordered sp 2 structure content increased.But overall structure is mainly disordered carbon structure increased.Compared to not firing affected raw coal,the half height to width ratio ID 1/IG has increased,shown that coal fire firing will hinder coal structure ordering to a certain degree.

关 键 词：煤火 X射线衍射分析 激光拉曼光谱 傅里叶红外光谱 结构演化 

分 类 号：TD752[矿业工程—矿井通风与安全]