Study On Monitoring And Warning System Of Gas Concentration In Fully Mechanized Mining Face Based On Network Calculation

Mine gas disaster is one of the potential safety risks in coal mine production.How to maximize the personal injury and even casualties caused by gas disasters and the huge losses caused by them are the points that need to be paid close attention to in the whole coal mining stage.Based on the real-time monitoring data and the topology information of wind network.a comprehensive analysis model of ventilation gas is constructed in this paper.Firstly,the gas monitoring data are pretreated,and the ARM,A model is constructed,based on which the gas concentration of monitoring points is predicted.Furthermore,the prediction interval of gas concentration is obtained,and based on the topological structure of well and roadway and the basic data of underground ventilation gas,the map of mine ventilation system is quickly formed and the basic model of ventilation gas basin analysis is constructed.Then the distribution of ventilation gas data(such as air resistance,air pressure,wind speed,gas concentration,etc.)is analyzed frorm the point of view of mine ventilation gas system.Finally,the remote technical branch is constructed.The platform maintains the whole monitoring system,and can analyze and summarize the system data regularly.The results show that:(1)the gas concentration early-warning analysis based on multi-dimensional information fusion can show the change trend of underground gas concentration and the overall layout of mine ventilation.It is helpful to get the evaluation results of the whole coal mine operation system more accurately.(2)based on real-time monitoring data and ventilation network topology information,a comprehensive analysis model of ventilation gas is constructed,which,can identify the areas with high gas risk in underground mine ventilation system,and obtain the variation trend of gas emission in different areas.The air flow information of the whole system and the change trend of gas concentration under normal ventilation state indicate the potential hazard source and dangerous area.The research results can provide theoretical and technical means for the prediction and early warning of mine gas and other gases.