Research Of Synthetical Technique Preventing And Extinguishing Fire In Excavating Coal In Yangchang Wan Coal Mine

Linwu diggings lies west erduos basin , coal measures contains lower ash, lower sulphur, lower phosphor and higher humidity. the coal have low melting point and is easy to be hydrolyzed with the high chemistry activity .it belongs to the thick coal measures inclined to spontaneous combustion.In recent years, they enlarged it's production with the market's expanding in Linwu diggings. The coal mine had benefited .the first Mechanization working face had put into production in Ciyao bu 2# coal mine. The coal is likely to burning because of many factors. So Research of this discourse has significant theoretical meaning and practical value.The discourse applied determinant method of danger zero of coal spontaneous combustion and prognosticate method of coal spontaneous combustion into Ciyao bu 2# mine. According the calculated ultimate parameter, it also marked off the danger zero chart of coal spontaneous combustion in gob and calculated the limited velocity of working face. Then it doped out the coal spontaneous combustion degree in gob of Ciyao bu 2# mine with the two methods which was validated by the locale practice. The determinant and prognosticate result guide preventing and putting out a fire. Finally, the discourse introduced the methods that are applied to put out a fire .In the actual production, techniques preventing and extinguishing fire must be changed to extinguish spontaneous combustion of coal with the changes of factors that influence spontaneous combustion of coal.