Research on Underground Coal Fire Classification Detection,Warning and Prevention Technology
In order to achieve efficient monitoring,early warning and prevention of the concealed fire sources that causes coal spontaneous combustion,from different dimension-classification,the detection and early warning technology of underground coal fire is studied in this paper.Firstly,the electromagnetic,sonic,temperature and gas variation characteristics of coal spontaneous combustion during heating and combustion process are revealed,and the electromagnetic,sonic,radon,infrared multi-dimensional detection method is form,so as to realize the combined multi-dimensional detection application in well and underground.Secondly,a coal spontaneous combustion monitoring and early warning system based on positive pressure transportation is established according to the gas generation law of large-size coal spontaneous combustion index,so as to a-chieve graded and accurate early warning of underground coal spontaneous combustion.Finally,based on the characteristics,influencing factors,and changing laws of spontaneous combustion of coal seams in complex areas,a comprehensive preven-tion and control technology system for coal spontaneous combustion disasters in complex mining is proposed.The research re-sults can provide the basis and reference for early warning and prevention of underground coal spontaneous combustion disaster.
coal spontaneous combustionelectromagneticsonic wavedimensionality gradingprevention and control system
万方数据
维普
