Formation Mechanism of Coalfield Fire and Progress of Research on Extinguishing and Control Technology

This article makes a systematic analysis of the formation mechanism of coalfield fire and the progress of research on the extinguishing and control technology, lays the stress on the exposition of the findings from the researches made by the scholars at home and abroad from two aspects such as the breakout, development and evolution mechanism of coalfield fire and the extinguishing and control technology for the coalfield fire, including the coalfield fire combustion reaction kinetics mechanism, coalfield fire zone coal petrology fluid solid thermal coupling mechanism, coalfield fissure medium mass transfer model, research on natural convection and porous combustion characteristics, coalfield fire detection and identification, monitoring and control technology, extinguishing and control technology, process and material, and still considers the accurate detection and identification of the fire source position, new grouting extinguishing material and process, and the action mechanism of the environmental impact as the difficulties to be solved immediately.