关键词: 易自燃煤层, 自然发火, 指标气体, 防灭火工艺, 控风调压, 采空区温度场

Abstract: When the indicators of the coal spontaneous ignition index system exceeds the predetermined warning range, the hidden dangers appear to rise or develop from stable to fluctuating and upward trend, indicating that the continuous measures in the prevention and control measures are nearly out of order. In order to achieve the purpose of fire extinguishing, it is based on the precondition of safety. Immediately change the direction of measures, redistribute projects such as drilling, grouting, cold nitrogen, and wind pressure regulation, in order to make positive and negative feedback and influence on the index system and determine the even-vector variables at the nodes. The results show that this is similar to a derivation process, which allows the hidden danger line to develop to the expected under the control of the mathematical function of the “guided function”, so that the hidden danger can be controlled.