30-05-2023 дата публикации
Номер: CN116181398A
Принадлежит:
The invention provides a goaf nitrogen inhibition water mist fire preventing and extinguishing method. The goaf nitrogen inhibition water mist fire preventing and extinguishing method comprises the following steps that S1, the drilling position is determined; s2, a drilling facility is installed; s3, preparing an inhibition solution; s4, assembling a water mist system; s5, operation of the fogging system; s6, sealing the drilled hole; s7, checking the inhibition effect; by combining the advantages of the nitrogen, the inhibitor and the water mist, the water mist inhibited by the nitrogen is injected into the goaf through drilling, the inhibited water mist is more uniformly distributed into the goaf by utilizing the flowability of the nitrogen, and meanwhile, after the nitrogen is injected, the pressure difference between the inside and the outside of the goaf is reduced, the air leakage rate can be reduced, and the oxygen content is reduced; meanwhile, the inhibition water mist covers the ...
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