The Study Of Compositive Extinguishing Technique Of Coal Spontaneous Combustion For High Gas-containing Coal Seam

Our country coal resources are very abundance. Coal output and consumption occupy first place in the world, which occupying about 85% in the internal primary energy produces and consumption. But coal self-ignition is very serious in our country, which has seriously restricted safe production and the development of coal mine, and it has caused waste of enormous resources, pollution of the environment, loss of personnel and property.From the spontaneous combustion characteristic of goaf of High Gas-contaning coal seam, account of cause and research level of coal self-ignition at present, and it studies on the Compositive Extinguishing Technique of Coal Spontaneous Combustion for High Gas-containing Coal Seam.Firstly, the infected factors of coal spontaneous combustion are analyzed, the discourse simulated coal spontaneous combustion by the XK-III experiment station of coal spontaneous combustion, quantificational calculated characteristic parameters which reflect the degree of coal spontaneous combustion, such as oxygen consumption & heat conduction coefficient and coal burning period, and find out the diversification rule of basic parameters in the whole proccess of coal spontaneous combustion;Secondly,on-the-spot observe the No.l201(3)face of the Xie Qiao coal mine, study the observation data,and master the distribution chart of oxygen concentration & coal ply & air leak intensity, according the calculated ultimate parameter, we partition the three zones of the No. 1201(3) face in Xie Qiao coal mine, confirm its distribution rule and the coal spontaneous combustion zone and calculated the limited velocity of working face; Finally, Based on the characteristic and rule of The High Gas-containing Coal Seam, the gel Fire preventing and extinguishing technique was confirmed the important technique,combined with other technique, the Fire preventing and...