The reason of coal mine accidents caused by
Date:2013-11-28 Hits:
Coal mine caused many accidents due to ventilation system is not perfect, the ventilation management confusion and other reasons, even serious accidents. Coal mine safety should be targeted, to take targeted measures, to prevent similar accidents occur. The reason of coal mine safety accidents have:
A, partial ventilation management confusion. Local ventilation is not reasonable, positive pressure ventilation and series way is not correct, tandem fan and air duct outlet without sealing device, a negative pressure fan is not installed, circulating air face, can not be timely and effectively the harmful gas blowing discharge, resulting in harmful gas in the goaf and the laneway accumulation.
Two, blind lane management is not in place. Coal is not in accordance with the rules of the blind alley of blind lane closed, closed down, not timely repair, confined within the gas emission, the concentration explosive limits. Our management is not in place the ventilation of mine safety accident.
Three, the ventilation system is not perfect. Mine ventilation system is unreasonable, the serious air leakage, gas gas and the tunneling work point overflow emission due to gas accumulation, explosion concentration limits.
Four, ventilation facilities are not reliable. Ventilation facilities are not reliable, serious leakage, resulting in working face in the breeze, causing gas accumulation. Need to select reliable ventilation facilities.
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