Research On Technology Of Prevention And Governance Of Coal Spontaneous Combustion Of Close Seam Of Baijiao Coal Mine

In recent years, with the development of economy, China's coal production andconsumption is climbing.At present, China has become the world's largest coal producer andconsumer country, but the coal mine safety problems have become increasingly serious, firehas become one of the major natural disasters. Furong Mine territory Baijiao CoalMine,belongs to close-seam Mining,in the mining process, there may be air leakage betweenthe layers of coal,resulting in more serious coal spontaneous combustion,morecomplex law ofspontaneous combustion,more difficulties in governance.In this paper,firstly,by the use of XKIII coal spontaneous combustion device,"coalspontaneous combustion experiment"was conducted on coal seam, characteristic parametersin the coal spontaneous combustion were found and analyzed;secondly,took the technicparameters,such as mine condition and mine technology ,of Baijiao into consideration,thefocus area of Spontaneous Combustion in Coal Mine were analyzed and summed up,thethickness distribution of floating coal in 2283 work face gob,the oxygen concentrationdistribution and the intensity distribution of the degree of air leakage were concluded andsummed up,and 2283 Face Gob Spontaneous Combustion "three zones" were divided todetermine the minimum safe advancing speed of working face and danger zone of Gobspontaneous combustion;Finally,according to safety mining of 2283 working face andsuccessful governance of 2254 working face fire, it proved that it was effective of gel polymerand fly ash in the fight against coal spontaneous combustion of close seam.The conclusion in this study provides some reference meaning and practical value, canbe applied on similar coal mines.