Research And Development On The Disaster Relief Auxiliary Decision System In Coal Mine

Fire is one of the three major disasters in coal mine, and also is the main reason of gas explosion, especially in closed fire area, due to the lack of effective monitoring or improper methods are very vulnerable to recrudescence and gas explosion. When the mine adopts closed fire zone, because of its specificity, big difficulty of rescue work. Therefore, in addition to the rapid establishment of relief command organization, organize rescue teams, but also must closely rely on the scientific and effective disaster relief auxiliary decision system.The disaster relief auxiliary decision system in mine closed fire area development is a new topic that China's mine safety and mine rescue urgently need to solve, and also is a leading direction of closed fire zone disaster relief technology, which plays a major role in enriching and improving coal mine fire rescue technology and safety production.This is the main research project of the National Eleventh-Five Year Research Program of China, I am the main person in charge of the project. Inherit and innovate Fire Prevention and Control in the mine and rescue research results of Shenyang Research Institute, and reference successful experiences at home and abroad. Combined with China's coal mining geological and mining conditions, the disaster relief auxiliary decision system technology is theoretical analyzed and experimental studied, the main research results obtained as follows:(1) The disaster relief auxiliary decision platform in mine closed fire area is built based 3D-GIS for the first time. It contains underground fire at close combustion source prediction, temperature field in closed areas real-time monitoring, fire hazard level in closed areas real-time prediction, gas explosion hazard level in closed areas real-time prediction, disaster relief experts method base in closed areas and expert decision-making functions.(2) The beam tube monitoring substation technology is proposed first, which unifying taking gas, analysis and an explosion early warning triangle displayed, and using in rescue in closed area, with the gas explosion early prediction function. The mathematical model is established, and a complete hardware and software are developed, which overcome the shortcomings of the existing beam tube monitoring, setting tube difficulty, connection time-consuming, cannot satisfy the rapid emergency rescue and disaster relief in closed area.(3) First proposed for underground distributed fiber optic temperature measurement system used for the detection of the coal mine hidden fire source and real-time monitoring of closed areas of the temperature field, and the mathematical model is established, the hardware and software design is researched.(4) In order to realize the rapid rescue and solve the on-site disaster relief in the duplication of wiring and ease of system maintenance, designed the flame retardant, antistatic and set to take gas, communications, signal transmission (analog signals, digital signals, optical signals) in one of the new tube cables, achieved the rapid lay of disaster relief tube cable.(5) In the process of research and development, the system is innovative, achieve many national patents. Through the National Regular Explosion-proof Testing Center, tested the safety and explosion-proof performance on the underground equipment, The product is qualified. The system in the coal mines is online tested and achieves the desired results.The results of study, not only provide a theoretical basis and techniques for the relief technology of the coal closed fire area, but also have an important reference value on the emergency rescue of non-coal mines in China.