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The coal dusts have large surface area thus it can easily absorb the heat and reach its ignition temperature and thus can burn easily... Remember a wood fillings can be easily burned in seconds but a wood block cannot be burnt easily as it takes time to transfer heat to all its body and thus reach the ignition temperature...
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What is stuff made out of coal?
Fire. Heat. Dust. Soot.
Why does coal dust burn quicker than lumps of coal?
The coal dust burns more quickly because it has a greater surface area to be exposed to the flames of the fire, therefore it burns quicker than the lump of coal.
What are some dangers in mining coal?
Dangers can include fire/explosion, cave-ins of underground mines, flooding, inhaled rock and coal dust, noise from mining equipment, electric injuries (most underground equipment is electrically driven, and having a chunk of the rock ceiling fall on you. Being struck by equipment is a hazard, and when working narrow seam coal, developing "Miner's knee" for working on your knees- not enough room to stand up. I inspect coal mines, and these are some of the areas I look for.
Can coal go on fire?
Coal burns but it is quite difficult to make it do so, in power plants it in ground down into a dust then blown into the furnaces.
What causes a grain silo explosion?
Too much grain dust. A spark in grain dust will create a 'flash'. There by an explosion. In coal mines, miners referred to 'fire damp' . This is a mixture of very fine coal dust particles, methane and oxygen. A spark across it would cause a big explosion. Miners tested for 'fire damp' using canaries (birds). Canaries are very sensative to atmospheric changes. In a coal mine if 'fire damp' is prersent the canary would possibly faint and fall off its perch, until restored to clean oxygen(air). Have you ever seen the 'custard tin' explosion. The very fine particles of custard powder, could be ignited and blow the lid off the tin.
What is a serious hazard of coal mining?
Fire and explosion. Coal mines contain methane gas, which is very flammable. There are also health hazards from breathing coal dust.
What has the author I Liebman written?
I. Liebman has written: 'Suppression of coal dust explosion by water barrier in a conveyor belt entry' -- subject(s): Belt conveyors, Coal mines and mining, Dust control, Fires and fire prevention, Mine explosions
What is stuff made out of coal?
Fire. Heat. Dust. Soot.
Why does coal dust burn quicker than lumps of coal?
The coal dust burns more quickly because it has a greater surface area to be exposed to the flames of the fire, therefore it burns quicker than the lump of coal.
Why a miner is never permitted to smoke inside a coal mine?
Fire and explosion are MAJOR safety hazards. Coal, and coal dust, is readily ignitable, and most coal mines have some level of methane gas. This is explosive when mixed with air. Smoking, and carrying a "source of ignition" such as a lighter, matches, or even a regular flashlight violates US safety regulations.
What are some dangers in mining coal?
Dangers can include fire/explosion, cave-ins of underground mines, flooding, inhaled rock and coal dust, noise from mining equipment, electric injuries (most underground equipment is electrically driven, and having a chunk of the rock ceiling fall on you. Being struck by equipment is a hazard, and when working narrow seam coal, developing "Miner's knee" for working on your knees- not enough room to stand up. I inspect coal mines, and these are some of the areas I look for.
Can coal go on fire?
Coal burns but it is quite difficult to make it do so, in power plants it in ground down into a dust then blown into the furnaces.
What were the sorts of incidents that happened in coal mines?
The greatest dangers were fire/explosion, and collapse of the areas being mined. Coal dust is highly flammable, and most coal deposits have methnae gas (VERY flammable). Collapse could result in being trapped in the mine, or hit by rocks. Accidents have also happened when working with explosives, operating power machinery, and electrical wiring.
Do HP Computers Catch On Fire?
Any computer can catch on fire if not properly maintained. Dust can build up inside a computer, which traps heat generated, which can then cause a fire to ignite. I reccomend buying canned air, opening the side panel of the computer, and blowing out all the dust you see about once a month. The computer will last a lot longer, will have fewer problems, and dust will not be able to build up enough to be in danger of causing a fire.
What causes a comets to have a tail?
The dust and rocks that come off the comet often catch on fire and leave a trail.
What is the definition of the word combustibilty?
Element which catch fire and broken down to result fire and smoke..Like Wood Coal, cowdung, etc has combustibility..Thanks
What has the author J K Richmond written?
J. K. Richmond has written: 'Effect of rock dust on explosibility of coal dust' -- subject(s): Dust explosions 'Fire and explosion properties of oil shale' -- subject(s): Fires and fire prevention, Mine explosions, Oil-shales, Testing
