The Study Of Comprehensive Treatment Technology Of The 4th Coal Seam Outcrop Fire In Da Baoding

The output and consumption of coal in china is premier in the world,it accupy about 75 percent of internal primary energy. But the phenomenon of Coal spontaneous combustion is quite serious, it badly restricts safe production and development of high-productivity and high-efficiency mines, as spontaneous combustion of coal seam outcrop, surface subsided, sank to crack groups and bands, not only provide a channel of oxygen to the spontaneous combustion of coal, but also exacerbated the surface of the coalfield desertification。At the same time it brings huge resource waste, environment pollution, the loss of personnel and property.As one accessorial subject of the comprehensive treatment of coalfield fire, based on the current level of coal outcrop spontaneous combustion causes and mechanism,closely around the actual situation of the fire on the 4th coal seam in Da BaoDing,studied on the comprehensive treatment technology of outcrop fire. Firstly, according to the factors affecting spontaneous combustion of coal seam, analyzed the causes and impact factors that caused spontaneous combustion of coal seam outcrop, seted the management ideas of fire with the actual situations. According to the fact,seted that controling the center fire of the coal filed, insulating the south and north fire field According to the characteristics of spontaneous combustion of coal outcrop, determined fire detection method .Again, developed technical processes on fire management of 4th coal seam, identified fire-prevention technology, witch based on gel technique in controlling self-fire.At the same time,adopted some methods such as deep loose blasting technology, stripping, coverage,et. Studied the treatment effect of comprehensive treatment.Finally, from the overall effect of the comprehensive management of the fire district ,the deep bores'temperature, the fire burning surface temperature, the changes in concentration of other harmful gases to analyzed and studied the treatment effect.Make sure that the fire has been extinguished.Analyzed the technical efficiency, economic benefits and social benefits,make sure that comprehensive treatment based on gel technique in controlling self-fire is very important in coal Outcrop spontaneous combustion comprehensive treatment. The research of this article help to comprehensive treatment technology of coal seam outcrop fire.