摘要
为了能够有效地分析不同类型构造煤内部大分子的结构变化特征,本文利用激光拉曼显微探针对韩城矿区构造煤进行测试,利用Origin7.5对拉曼谱峰进行分峰,得到拉曼光谱参数,定性判定不同构造煤内部大分子结构的改变规律。结果表明:不同类型构造煤(碎裂煤、碎粒煤和糜棱煤)在测试频率范围内,都存在明显的两个谱峰,分别为D峰1346~1360cm^(-1)和G峰1580~1592cm^(-1),两峰的半峰宽分别为200~250cm^(-1)和60~90cm^(-1)。D峰峰位随着最大镜质体反射率(Ro,max)的升高而向低波数段区移动,G峰峰位随着Ro,max的增大而向高波数段区移动。碎裂煤和碎粒煤的D峰面积和G峰面积与Ro,max存在很好的正相关性;糜棱煤的D峰和G峰面积与Ro,max的相关性不强。构造变形对焦煤的分子结构影响较大,对瘦煤影响比较微弱。
In order to analyze the characteristics changes of internal macromolecule structure in different types of tectonically deformed coals,the authors use Raman to test the coals in Hancheng mining area,the Raman spectra were divided into peaks by Origin7.5 and can obtain the Raman parameter,judging the law of changes of internal macromolecule structure in different types of tectonically deformed coals. The results show： All different types of tectonically deformed coals （ fragmented coal. granulated coal and mylonitized coal） have two obvious Raman frequent vibrate region,D peak is 1346~1360 cm^-1 and G peak is 1580--1592 cm^-1. Two peaks＇ FWHM is 200~250 cm Xand 60-90 cm^-1. If the R is go up,the D peak move to low wave number;If the R is go up,the G peak move to high wave number. The two peak area of Fragmented Coal and Granulated coal have a good relationship to the R But the two peak area of mylonitized coal don＇t have good relationship to the R Structural deformation has a great influence on the molecular structure of coking coal,but have a little influence on lean coal.
作者
杨昊睿
要惠芳
姬新强
YANG Hao-rui YAO Hui-fang JI Xin-qiang(College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, Chin)
出处
《中国矿业》
北大核心
2016年第11期152-156,共5页
China Mining Magazine
基金
国家科技重大专项"鄂尔多斯盆地东缘煤层气开发示范工程"项目资助(编号:2011ZX05062-009)
关键词
构造煤
大分子结构
拉曼光谱
韩城矿区
tectonically deformed coals
macromolecule
Raman spectrum
Hancheng mining area
