Management Of Technology Research On Working Face Of The Self-ignition In High-gas Coal Seam

When the hidden danger of spontaneous combustion for high-gas coal has happened, thefire of fully mechanized working face has rapid developed, and our time to coal fire fightingis very limited, so many faces have to close. If we have not taking effective technologies offire preventing and extinguishing, which opening fire area can be re-ignition again in a veryshort period of time, so we have to close this fire area once again. At present, the technologiesof fire prevention and control for coal spontaneous combustion have been taken a wide rangeof applications at home and abroad, which include the grouting fire-fighting technology, aninert gas fire-fighting technology, the fire fighting technology with liquid carbon dioxide, thefire-fighting technology with gel, the fire-fighting technology by pressure equalizing. Sandpressure inside the note liquid carbon dioxide for fire extinguishing, so how to gas in fullymechanized working face different under the condition of coal mine because of spontaneouscombustion closed after working face of comprehensive application of the technology of fireprevention and effective management of sand, ensure the safety of the opened well is aremains to be solved and practice topic.This paper polymer gel fire-fighting technology, liquid CO₂fire-fighting technology, thepressure of the technology of fire prevention and basic principle, their respective advantagesand how to practice against different actual situation proposed mine integrated use, namelythe rapid and effective management to ensure the safety mining face opened made theresearch and exploration. These technologies have integrated applied in the2131（3）working-face in Panyi coalmine and10414mining face in Yangliu, which the two high-gasfaces of fully mechanized have been closed by coal spontaneous combustion, and ensure thesuccessful two mining face opened safety. The integrated technologies of fire preventing andextinguishing to closing fire area of coal spontaneous combustion in fully mechanizedworking face with high-gas have been obtained which have well-established.