Study On The Small Pillar Driving Coal Spontaneous Combustion And Control Technology Of In The Easy Spontaneous Combustion Coal Seam

Easy driving roadway along gob spontaneous combustion seam coal combustion is one of the major disasters coal mine, the serious influence of coal mine safety in production. The accurate that coal driving roadway along gob spontaneous combustion of the dangerous zone, predict the coal combustion combustion time and high temperature distribution point for guiding fire prevention and safety production coal mine has very important significance.This paper first studied wu gou the structure of coal mine of coal coking coal spontaneous combustion influence, and the experimental research of coal oxygen, quantitative measure different temperature condition of coal quantity and the temperature and oxygen is the relationship between the amount suction oxygen, and further analyzed the left side along the goaf coal quantity of heat accumulation process and its influencing factors. Second, set up along the goaf coal seam spontaneous combustion of the mathematical model of the area, and understand the program of FORTRAN, simulation in mine pressure under the action of coal pillar fracturing of coal spontaneous combustion damage of influence, and the results showed that the coal pillar imperfection is left in coal combustion on one of the main influence factors. Finally, according to the actual1021lane, along with goaf coal pillars as the research object, the coal pillar in the design temperature measuring drilling, use the thermocouple temperature measurement, and conclude that the coal pillar along the goaf drilling average temperature of about26℃, in a certain time each drilling coal basic keep temperature changes in the smaller range. Through to the analysis of the coal pillar along the goaf, grasps basically along the goaf in the process of coal spontaneous combustion excavating the danger zone and the characteristics of high temperature distribution points.According to the coal pillar temperature measurement and1017coal goaf of the determination of potential energy around, accurate analysis of the high temperature coal pillar position and the surrounding air leakage of distribution, and at the same time, using the method of numerical simulation of predicting the small coal pillars of different degree of damage along the goaf side loose coal spontaneous combustion influence. But with the passage of time, and along the goaf side temperature rising trend of coal is loose, have natural angry risk. Therefore, to establish at high temperature continuous monitoring is given priority to, local grouting or injection gel, supplemented by fire engineering measures, to ensure the safety of the mine production.