The Application Study On Risk Forewarning System Of Gas Explosion And Gas Discharge Based On Hazard Theory

China is a big producer of coals and the annual production stands first on the world list, However, the safe situation of the coal mine is very grim, especially the gas explosion accidents have been as the NO.1 killer of coal mine safety in china, which our government has a high regard to. In order to control gas explosion efficiently, through summarizing large numbers of domestic and overseas relevant data and standard stipulations, and combining the specific situation of the mine, this article has put forward the risk forewarning system of gas explosion and gas discharge in the coal mine based on hazard theory from analyzing radical factors of gas explosion hazard risk. Strengthening forewarning administration of hazard to realize dynamic risk evaluation during produce process, so that can make strategic changes of mine safe management from latter-analysis to prevention beforehand, and can reduce accidents probability.Firstly, analyzing present researches on some subjects referring to this study and combining the hazard theory and coal mine gas explosion accidents, the paper has analyzed the basic condition of gas explosion and set forth the model of coal mine gas explosion accident from 3 aspects, namely, inherent hazard, temptable hazard and human factor, in the spirit of three class of hazard.Secondly, researching on risk forewarning system of gas explosion in coal mine, the author has designed total flow for risk forewarning system work and flow for risk forewarning work of gas explosion in coal mine of a subsidiary company in mining industry. Applying fuzzy comprehensive evaluation technique as well as combining the specific situation in the south mine of zhongliangshan, the author has structured the risk evaluation index system of gas explosion in coal mine and established corresponding flow chart of fuzzy comprehensive evaluation technique to identify the danger classes of accidents. Connecting with the south mine of zhong liangsha's 5 coal mining working faces, the paper evaluates risk forewarning of the hazard and judges the rationality and security.Finally, combining the formidable non-linear dynamic processing question ability of neural network and MATLAB's superiority in numerical computation, the author has designed the predicting model based on time series of inherent hazard of coal mine gas explosion for gas discharge amount and performed with examples to confirm. The results show high accuracy of the model. And it can forewarn when the gas density...