firedamp การใช้

• The prevalence of firedamp affected all the Podmore Hall Combine collieries.
• Firedamp is a mine gas that consists chiefly of methane.
• Davy however performed his experiments with samples of firedamp collected from pits.
• Thus low pressure increases the risk of firedamp accumulating.
• This time the firedamp leaking from the void above the goaf was ignited.
• Firedamp was a problem in the construction and a workman was badly burned.
• Despite its profitability, Minnie was a dangerous pit because it had firedamp.
• The explosion was caused by a firedamp explosion.
• Describes the testing of a mine for firedamp.
• At Wallsend in 1818 lamps were burning red hot ( indicating significant firedamp ).
• Firedamp is all the more hazardous because of the after effects of the explosion.
• Methane is the main gas present in firedamp.
• Coal mining was very dangerous owing to the presence of firedamp in many coal seams.
• Firedamp was ignited when being tested for with a Clanny lamp having a cracked glass.
• It is thought the explosion was caused by firedamp igniting on contact with a candle.
• A disaster in May 1924 when firedamp ignited killed five miners and injured 26 men.
• The cause was an explosion of firedamp ignited by sparks from a damaged trailing cable.
• Back in London Davy worked with Michael Faraday and identified " firedamp " as methane.
• The cause was assumed to have been the ignition of firedamp by a safety lamp.
• In addition, the shaft provided vitally important fresh air ventilation and extraction of the firedamp.