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《Journal of China Coal Society》 2010-10
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Fisher discriminant analysis to the classification of spontaneous combustion tendency grade of sulphide ores

HU Han-hua1,2,LIU Zheng1,2,LI Zi-jun1,2,CUI Tian-tian1,2(1.School of Resources & Safety Engineering,Central South University,Changsha 410083,China;2.Nation Research Center of Safety Science and Technology for Metal Mines,Central South University,Changsha 410083,China)  
Based on the principle of Fisher discriminant analysis,a classification model of spontaneous combustion tendency of sulphide ores was established,including four indexes reflecting the spontaneous combustion tendency of sulphide ores:compositions and contents of mineral,velocity constant of oxygen absorption,spontaneous heating point and spontaneous combustion point.Linear discriminant functions were obtained through training thirteen experimental data of ore samples from Xinqiao pyrite.Based on this,spontaneous combustion tendency of sulphide ores from Tianmashan high sulfur gold were discriminated.The results show that the classification model of Fisher discriminant analysis has excellent performance and a good applicability,and statistic significance of classifying is explicit,from which we can see that it has a good prospect for the identification and classification of spontaneous combustion tendency of sulphide ores.
【CateGory Index】: TD752.2
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