Multi-index Fusion Prediction at Various Stages for Coal Spontaneous Combustion

Coal spontaneous combustion fire seriously threatens the safety of mine production. How to improve the prediction accuracy of coal spontaneous combustion is a hot topic in current research. The critical temperature point of coal spontaneous combustion and the temperature point of C2H4 occurrence were determined by the temperature-programmed oxidation simulation experiment of coal spontaneous combustion. Taking the reliability of each prediction index as the weight and introducing the error weakening factor, the multi-index fusion prediction model of coal spontaneous combustion was constructed, and the multi-index fusion prediction method of coal spontaneous combustion was put forward. The multi-index fusion prediction method can significantly improve the accuracy of coal spontaneous combustion prediction. The research method can provide theoretical guidance for the prevention of mine fire.