Application of main compositions analysis method in analyzing self-ignition tendency of coal

Based on analyzing six kinds of coal with different metamorphic in coal quality,coal element and pore microscopic structure,through the measures of multivariate statistical analysis and main component analysis to do coupling relation analysis on multiple experimental data,that ascertained the weight of main influence factors such as coal sample moisture,volatile matter,carbon content,oxygen content and porosity in public part and then established a comprehensive analysis mathematical model by making dimensionless and simplified analysis on multiple parameters,to decision coal self-ignition tendency.The research result shows that the decision result and experimental result is consistent.This method avoid the errors in experimental process caused by human factors,improved the accuracy of the decision results and saved the time for decision of coal self-ignition tendency,and offer some basic data for the research of coal self-ignition tendency,so it have a conference on decision of silf-ignition tendency of coal.