methane explosions in coal mines

Methane Explosions In Coal Mines

CDC - Mining Feature - Coal Mine Explosion Prevention - NIOSH

Dec 09, 2011 · There are two main types of coalmine explosions: methane and coal dust. Methane explosions occur when a buildup of methane gas contacts a heat source and there is not enough air to dilute the gas level below its explosion point. Likewise, fine particles of coal dust in the right concentration that contact a source of heat can also be explosive.

Detecting Methane from Coal Mining Ventilation Systems

Mar 07, 2018 · Explosion of methane gas is the most common source of mining accidents, mainly in coals mines. Methane, an odorless, colorless gas, is trapped in mines as part of the coal formation process. When coal is formed from compressed plant matter, methane is produced as a by-product.

Firedamp - Wikipedia

Firedamp is flammable gas found in coal mines. It is the name given to a number of flammable gases, especially methane. It is particularly found in areas where the coal is bituminous. The gas accumulates in pockets in the coal and adjacent strata, and when they are penetrated, the release can trigger explosions. Historically, if such a pocket was highly pressurized, it was termed a "bag of foulness".

Why Do Coal Mines Explode? | Live Science

Methane explosions occur in mines when a buildup of methane gas, a byproduct of coal, comes into contact with a heat source, and there is not enough air to dilute the gas to levels below its explosion point, said Yi Luo, an associate professor of mining engineering at West Virginia University.

Methane gas explosion kills 68 mine workers | South ...

17 September 1983 30 years today, sixty-eight mine workers were killed after an underground methane gas explosion at the Hlobane coal mine near Vryheid in Kwazulu-Natal. The gas explosion was caused by poor safety standards. A week before the explosion a miner who also died in the explosion discovered methane underground.

Coal seam methane | World Coal Association

Coal seam methane. Methane (CH4) is a gas formed as part of the process of coal formation. When coal is mined, methane is released from the coal seam and the surrounding disturbed rock strata. Methane can also be released as a result of natural erosion or faulting.

Methane gas Explosion - YouTube

May 30, 2012 · Arch Coal Viper Mine employees gets a demonstration of a methane gas explosion, while filming I dropped my phone, thats the second loud sound you hear Viper...

Mine Gases Questions and Answers - Mine Safety and Health ...

Methane may be found anywhere, but is most likely to be encountered in virgin coal, roof cavities, high places, abandoned workings, and places that are improperly ventilated. Q: What is a flammable mixture of Methane and air which can either burn or explode when ignited called?

Handbook for Methane Control in Mining

Major coal mine explosion disasters have always involved the combustion of coal dust, originally triggered by methane. Thus, a chapter is included on making coal dust inert so it

Czech coal mine methane gas explosion kills at least 13 ...

Dec 21, 2018 · Published on Dec 21, 2018 At least 13 people were killed and several others injured after a methane explosion at a mine in the east of the Czech Republic, according to the spokesman for the OKD...

Working Mine Methane | Coal Mine Methane | CMM

May 22, 2017 · Working Mine Methane (Coal Mine Methane) Methane is released as a direct result of the physical process of coal extraction. Coal is extracted through mining which in turn releases methane previously trapped within the coal seam into the air supply of the mine as layers of the coal face are removed, thus creating a potential safety hazard.

Of coal mines and methane / Boing Boing

Apr 06, 2010 · The most violent explosions happen around 9% methane concentration. In underground coal mines, they try to control it by pumping in vast quantities of air to keep the concentration below 1%.

Kentucky coal mine explosion traps worker in Muhlenberg ...

Aug 02, 2019 · Authorities are trying to rescue a worker who fell down an elevator shaft following a methane gas explosion Wednesday afternoon at a coal mine in …

New Zealand mine explosion: the danger of methane gas ...

Nov 24, 2010 · Methane gas is one of the biggest dangers to the coal mining industry because the gas accumulates in pockets of coal. Any explosion caused by methane produces deadly carbon gases, such as carbon dioxide and carbon monoxide. These gases are toxic enough to kill within minutes, reducing the supply of oxygen available within a confined space.

Worst Czech coal mine blast in decades kills 12 Poles, one ...

A methane explosion killed 12 Poles and one Czech at an eastern Czech coal mine, the OKD mining company said on Friday, in the worst disaster of this kind in almost three decades.

Methane Gas Explosions | WV Coal Mining Accident Lawyer

Methane gas is a byproduct of coal and when air contains dangerous levels of this gas (between 5 to 16%), it can cause deadly explosions. It takes a little amount of heat to trigger the explosion of methane gas and if proper ventilation is not seen to, this increases the risk factor in a coal mine.

13 dead in Czech coal mine explosion - CNN

Dec 21, 2018 · (CNN) A methane gas explosion in a coal mine in the northeast of the Czech Republic has killed 13 miners, the mining company said on Friday. OKD, the …

Jürgen Brune - Mining Engineering

Characterization of methane explosion and spontaneous combustion hazards in longwall gobs, funded by CDC NIOSH, 2009-2014, $1.36 million, Lead Principal Investigator; Historic analysis of methane and coal dust explosions in U.S. coal mines, Wheeling Jesuit …

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