Meikuang Anquan (Oct 2020)
Advanced Cooperative Prevention and Control Technology of Mine Spontaneous Combustion Fire Disaster
Abstract
In view of the current situation that it is difficult to prevent and control spontaneous fire in close seam group mining, and the traditional prevention and control concept is backward, an advanced collaborative prevention and control technology of spontaneous fire is put forward, which is “advanced mining engineering to control oxidation, advanced comprehensive prevention to control spontaneous combustion, accurate multiple detection to extinguish spontaneous combustion”, and its corresponding connotation is given. The design principle of optimal mining deployment scheme in the scale of mining area, mine and working face is given. The advanced integrated prevention technology of spontaneous combustion fire disaster is established, including the critical value of spontaneous ignition gases, downhole in-situ spectrum on-line detection, threat degree evaluation method of spontaneous combustion fire disaster, multi-spot control for dynamic balance of gas flow field, and joint regional grouting above and below the well. The concealed fire source detection technology based on multi-element electromagnetic method is explored. The development trend of coalfield fire detection in the future will be the multi-information exploration technology based on infrared remote sensing, magnetic method and electric method.
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