Characteristic Research And Control Method On The Gas Explosion

As a result of coal resources mining, causes to the region coal destruction and the gas non-even release, in the machinery or natural ventilation for under the oxygen condition, causes to coal spontaneous combustion and gas explosion, thus adds the strong coal destruction and the gas release, induces the bigger disaster accident, seriously is threatening the lives of mining workers, restraining the development of mining production and bringing about heavy burden to coal enterprises. Although gas explosion accident frequent occurrence, but at present there is not any technique that can completely stop the gas explosion whether it has all the three explosion elements. Therefore the analysis is about the characteristic of gob combustibility gas, to suppresses the gas explosion, prevented the disaster the occurrence has the vital significance.On the basis of referring the foreign and domestic literatures and systematically generalizing the former research results, firstly, from the adsorption gas, coal spontaneous combustion and the heat resolves, thesis analyzes the ignitable gas occurrence. Secondly, though the experiment station of coal spontaneous combustion, thesis obtains the critical temperature 60 ℃～ 100 ℃, splits temperature 100℃ ～ 150 ℃, the fission temperature 150℃ ～ 180 ℃ and the speed-up temperature 210℃ ～ 250 ℃ and ignitable gas release rules in the several temperatures sections according to the results. Finally according to fire resource and the catastrophe theory, ignitable gas explosion characteristic and the influence factors have been conducted of the qualitative investigation and the quantitative determination. The gas explosion control technologies are put forward. It has built the certain foundation for the effective prevention gas explosion accident occurrence.