Study On Warning Technology And Equipment For Gas Overrun In Mining Working Face

To improve timely warning of capability gas hazards.the dissertation developed a new type of nano-Al2O3carrier gas sensor element, tested their response time to six seconds, and improve the stability, sensitivity and resistance to toxicity. Research and analysis of the Panyi Mine Workface variation of gas emission, the gas concentration along the vertical mechanized mining face gradually increased,"climbing the curve." Provide timely warning for the gas gauge theory support. Developed a new wireless network gas monitoring system, and experimental analysis of gas sensor probe opening direction and the direction of air flow, air flow rate of the impact of its response, obtained with the angle and wind speed increases, the sensor response speed of the conclusion, to optimize the location of the gas sensor to provide a basis laid. This research to improve the timely warning overrun gas concentration level of technical equipment,has important theoretical and practical significance.