Abstract:
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 Origin 7.5 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 1346~1360cm
-1 and G peak is 1580~1592cm
-1.Two peaks' FWHM is 200~250cm
-1and 60-90cm
-1.If the Ro,maxis go up,the D peak move to low wave number;If the Ro,maxis 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 Ro,max.But the two peak area of mylonitized coal don't have good relationship to the Ro,max.Structural deformation has a great influence on the molecular structure of coking coal,but have a little influence on lean coal.