Experimental Research On The Rules Of The Characteristic Parameters Of Coal Spontaneous Combustion

The spontaneous combustion of coal seam is one of the major problems in safe production of coal mine ,serious influencing the coal industry development, bringing the enormous security hidden danger for the mine production. Because the actual condition of the coal spontaneous combustion process is very difficult to describe clearly, and coal spontaneous combustion's characteristic and the external condition always change along with the environment. For example, coal particle size characteristic, wind and so on.So as to the forecast technology of the coal spontaneous combustion fall under the serious restriction. Therefore, not only needing use the experimentation simulate method realize coal spontaneous combustion condition, the developing process; And in the simulation experimentation find out the spontaneous combustion the condition, developing process's influencing factor has the important theory and the project application value to the coal spontaneous combustion prevention.On the basis of referring the foreign and domestic literatures and systematically generalizing the former research results, to research the Huangling coal oxidized exothermic spontaneous combustion characteristic change rule of the Huangling coal.First ,through the spontaneous combustion experiment on the Huangling coal to get the basic law of the preliminary analysis, the coal exothermic and oxidation intensity, CO production rate, oxygen consumption rate changes with the coal temperature, obtaining the basic coal spontaneous combustion characteristic parameter of the Huangling coal sample critical temperature and splits temperature.Then, changing the outside air flux, the heating rate of incubators, make the experiment to the four Huangling coal sample size. According to the results of the analysis of the spontaneous combustion experiment on the Huangling coal results, Carries on filtrate to the mass data,and get the rule. It can be obtained the rule of the preliminary analysis, the coal exothermic and oxidation intensity, CO production rate, oxygen consumption rate changes with the coal temperature, under different air flux and conditions of temperature-programmed simulation .It also can get the rule of the Huangling coal sample critical temperature and splits temperature.