Using fuzzy set-valued statistical method to determine prediction model of spontaneous combustion of coal

On the basis of theoretical analysis, spontaneous combustion of coal is corresponding relation among oxygen consumption rate, carbon monoxide production rate and carbon dioxide production rate of the coal at different temperature. That is spontaneous combustion of coal which is the function of oxygen consumption rate, carbon monoxide production rate and carbon dioxide production rate of the coal at different temperature. But this function is unknown. By theoretical analysis, we can setting the function between the two things, and accord to the experimental data, using the fuzzy set-valued statistical method to determine the coefficients, which can predict the spontaneous combustion of coal, and analysis the self-ignition trend of coal.