Electromagnetic signal detection and location method in coal pile or waste dump spontaneous combustion high temperature anomaly area

Abstract

The invention provides an electromagnetic signal detection and positioning method for coal piles or gangue piles of spontaneous combustion high-temperature abnormal areas, which relate to the technical field of mine safety monitoring. A signal detection module and a data processing module are used to detect and locate coal piles or gangue piles of spontaneous combustion high-temperature abnormal regions. Positioning, the steps include: 1. Determine the potential spontaneous combustion area according to the accumulation conditions of ground coal piles and gangue piles; 2. Arrange layers around the crossbar, detect it through electromagnetic sensors and infrared imaging sensors, and analyze the surface temperature monitoring in real time by the data processing module Data, to determine the abnormal surface temperature areas of coal piles and gangue dumps; 3. Conduct electromagnetic omnidirectional and directional detection of abnormal surface temperature areas, and determine the evolution process of spontaneous combustion in real time through the increase and decrease of electromagnetic signals. This method uses non-contact temperature detection and electromagnetic detection to realize layered detection and step-by-step determination. It can not only determine the location of spontaneous combustion area, but also determine the evolution process of spontaneous combustion in real time. It also has the advantages of flexibility, reliability, and anti-interference.

Description

technical field [0001] The invention relates to the technical field of mine monitoring, in particular to an electromagnetic signal detection and positioning method used in ground coal piles or gangue hill spontaneous combustion high-temperature abnormal areas. Background technique [0002] There are a large number of large coal piles or gangue accumulations in areas such as container terminals, coal mines, and coal storage yards of thermal power plants. These ground coal piles have been exposed to the natural environment for a long time, and natural gas is prone to occur in the atmospheric environment. Spontaneous combustion of coal piles is characterized by long burning time, large area, difficulty in determining the location, difficulty in cooling and extinguishing fires, rapid expansion of spontaneous combustion, and mainly occurs in spring and autumn. After spontaneous combustion of coal, a large amount of coal resources are burned first, resulting in waste of resources ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve technical problems such as the difficulty in detecting spontaneous combustion of coal piles or gangue piles, low detection accuracy, inability to accurately locate the location of spontaneous combustion areas, and complex environmental factors that interfere with detection, the present invention provides an electromagnetic signal for spontaneous combustion high temperature abnormal areas of coal piles or gangue piles. The detection and positioning method, the specific technical scheme is as follows

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