Experimental Study On Coal Spontaneous Combustion Characteristics Of The Initial Temperature Effects

Mine exploitation of coal resources, the impact of the mine affected by geothermalconditions, significantly increased risk of spontaneous combustion, as well as a direct threatto the safety of the mine to normal production. In this paper, experimental analysis methods toBarapukuria Coal Mine coal sample for the study, through the different initial temperatureoxidation of coal spontaneous combustion process of the experiment, the initial temperatureof microscopic features research on coal spontaneous combustion parameters and macroimpacts of high temperature coal mine study the mechanism of spontaneous combustion ofcoal has an important theoretical significance.The use of oxygen adsorption chromatography experiments, different initial temperaturephysics of low-temperature oxidation of coal in coal, coal chemical variation of oxygenuptake and oxygen adsorption heat proved the higher initial temperature, oxygen adsorptioncapacity of coal stronger.Fourier infrared spectroscopy to study the characteristics of the coal sample underdifferent conditions transform infrared spectrometer, coal-derived functional group in themolecule variation with temperature, determine the impact of the change in characteristics ofcoal spontaneous combustion of coal molecular properties of the major functional groups;when30℃, coal samples containing functional groups increased significantly.According to temperature-programmed experiments, the effects of different initialtemperature oxidation of coal spontaneous combustion gases variation rate, oxygenconsumption rate, heat intensity and other macro characterization parameters analyzed theinitial temperature of the spontaneous combustion of coal affect the relationship betweenmacroeconomic performance, initial results the higher the temperature, the more likely thecoal spontaneous combustion. Through the analysis of macroeconomic performance, studiesthe relationship between macroscopic characteristics of different initial temperature oxidation of coal spontaneous combustion variation between changes in their microscopiccharacteristics, obtained initial temperature oxidation of coal spontaneous combustion effectson microscopic interpretation..