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Why Do Coal Mines Explode? it can cause the air ahead of the combustion zone to compress and cause a shock wave, Luo explained a methane explosion has the potential to ignite a more

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Sources of dust Mining of coal leads to coal dust, and flour mills likewise have large amounts of flour dust as a result of milling A gigantic explosion of flour dust destroyed a mill in Minnesota on May 2, 1878, killing 14 workers at the Washburn A Mill and another four in adjacent buildings

COAL GRINDING SYSTEMS SAFETY CONSIDERATIONS

Debris in the coal mill Every effort must be made to prevent scrap metal and other spark producing debris to enter the coal mill system Pieces of metal in the coal mill can also be heated to temperatures high enough to start a fire or explosion by being in the mill while it is in operation

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Fire and Explosion Hazards in Cement Manufacturing

Bag filters used for the coal mill rank as one of the highest fire and explosion hazards in cement plants, due to the small particle size of the crushed coal 3) Electrostatic Precipitators Build-up of explosive mixtures like finely dispersed coal dust in air, or carbon monoxide in air can result in an explosion hazard in Electrostatic Precipitators

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In addition, at least 52 coal mine fires have killed at least five people each The worst of these disasters was an explosion that killed 362 people in a coal mine in Monongah, WVa in 1907

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