Research On Mining Laws Of Coal Spontaneous Combustion And Control Technology Of Fully Mechanized Working Face Fu Cheng Coal Mine1903N

Fu Cheng Coal Mine1903N mechanized mining coal seam is tall, complex, andlayered.In the medium, which is sandstone, thickness of0.05m-0.27m, a top coal mining1mthick, into, and return sides mined out area produces a large number of floating coalspontaneous combustion, there are hidden dangers, threatening the safety of mine production,the coal seam spontaneous combustion rule and control technology has become the urgentproblem to solve.The paper uses research methods of simulation experiments and field observationscombined with XK-Ⅵ, coal spontaneous combustion experiment, experimental simulation FuCheng Coal Mine9#coal spontaneous combustion process, the main test period, characteristicof oxygen consumption and CO, CO2, C2H2, C2H4, C2H6generated gas and spontaneouscombustion, statistics and Analysis on the. Then the Fu City1903N working face ofspontaneous combustion "three zone" of field research, through to the goaf gas zone air pipemonitoring of mined out area, distribution of oxygen concentration and air leakage intensitydistribution was calculated, and the thickness of coal seam, gob caving, advancing speed wereobserved, the reference of coal spontaneous combustion experiment data, the limit parametersof coal spontaneous combustion of the actual conditions to determine the cause.Comprehensive experiments and field experiments, Fu Cheng Coal Mine1903N fullymechanized working face of coal spontaneous combustion "three zone" distribution, combinedwith the shortest spontaneous combustion period calculate the limit speed, and spontaneouscombustion zone determined. Grasp the regularity of the spontaneous combustion of thesurface features of its work and spontaneous combustion law, formulate Fu Cheng Coal Mine1903N mining for fully mechanized coal mining face during the spontaneous combustion prevention measures, and puts forward emergency plan of fire fighting.