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Common Sense of Coal Mine Safety -- Mine Fire
Release time:
2022-12-09
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Common Sense of Coal Mine Safety -- Mine Fire
mine fire
Occurring in the mine, or near the wellhead, on the outcrop of the coal seam and may threaten the safety of the underground.The fire is called a mine fire.
(1) The locations prone to spontaneous ignition in underground coal mines are:
① Mining area, especially a large amount of lost coalThe mined area that is not closed in time or is not closed strictly;
② The connection with the small coal well on the ground, the small coal well being mined.Where the coal shaft is connected to the mine, the risk of ignition is greater;
③ The coal pillar area which is too small to be crushed;
④Coal mining face beyond ignition period
⑤ The high roof of the roadway, abandoned roadway, and the slip that has stored coal but is not used.Coal holes and roadway intersections.
2. Mine fire hazards
There are two main hazards of mine fire:
(1) The safety hazard to underground personnel is huge. Because the underground space is narrow and the air supply is limited, the occurrenceIn case of fire, the avoidance of personnel will be limited by the underground environmental conditions; the large amount of smoke and heat generated by the fire will beIt is not easy to be lost underground, and toxic and harmful gases have strong stimulation and suffocation effects on people's eyes and respiratory organs,The carbon monoxide in the flue gas is very toxic, and people will die of poisoning after inhalation.
(2) The country's resources and property suffered huge losses. Except for some fires that were put out in the early stages of the fire.In addition, fire extinguishing requires a lot of manpower, material resources and funds, and coal resources, mechanical and electrical equipment,The losses caused by the well and lane engineering and the shutdown are more serious. If the mine fire causes gas and coal dust explosion againBombing, the consequences are even more unimaginable.
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