Early Warning Model Research Of Fire Damp Explosion On KJ101 Monitored Control System

on the new pattern of industrialization development. In our country the mining geology is complex and leads many natural disasters and serious accidents, which brings much difficulty to safety production of coal mine. The gas explosion accident is the most serious in so many accidental types. The current supervising and controlling system of coal mine plays an important role in terms of supervising the secure situation under the mine and taking precautions against secure hidden danger. But, it is almost the simple reaction from the data of the sensor. It hasn't had the function of gas explosion forewarning yet and hasn't been able to meet well the requirement for the control of the mine secure production. Summarizing a lot of home and overseas relevant datas and rules, and combining the specific situation of the mine, this thesis has put forward the forewarning model of gas explosion under the coal mine based on the KJ101 Supervising and Forewarming System.Firstly, the thesis analyses the current research situation of the home and overseas gas explosion forewarming. Giving a simple summary to coal mine gas explosion, setting up a fault tree and getting out the least collections which are every possibilities of the gas explosion.It analyses the gas explosion accident of coal mine and offers a theory base to the forewarming model of gas explosion.Secondly, according to analyse the coal mine dangerous root, it sets up an early warning index system about safety of coal mine from three aspect of people, matter and surrounding.it also analyses the realization course about coal mine secure early warning system.Thirdly, it analyses the course and aftereffect of the gas explosion, making out that the gas explosion harms are quite serious.It also analyses the reasons of the gas explosion accident and put forward the corresponding measures of defending and saving the gas explosion accidents.Finally, it introduces the KJ101 Supervising and Forewarning System, according to a number of literatures and relevant rules, it has set up the forecasting and forewarning model for the gas effusion from working face and put forward a risk estimation way about the gas explosion.The thesis has researched on the early warning of the gas explosion under coal mine by combining the powerful database and proper supervising capability of KJ101 Supervising and Forewarning System.With the specific situation of the mine in Chen jia mountain, this thesis has estimated the gas explosion risk about 416 mining face and judged its danger on the base of KJ101 Supervising and Forewarning System.