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Production and harm of coal mine gas and coal dust
Release time:
2022-12-08
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Production and harm of coal mine gas and coal dust
Production and harm of coal mine gas and coal dust
In the process of coal mine production, the source of mine gas has the following four aspects:
① Coal falling from miningGas is emitted from the charcoal;
② gas is released from the coal wall of the mining face;
③ From coal lane, rock lane and
Gas gushing from roof and floor;
④ Release the gas from the goaf.
When the concentration of gas in the mine is high, it relatively reduces the oxygen in the air and can make people suffocate to death.When gas and air are mixed to a certain concentration, the heat source can cause gas combustion and explosion; when gas explodes,Associated with a large number of carbon monoxide, carbon dioxide and other harmful gases, poisoning or suffocation death.
In the process of coal mining, drilling blasting, shearer cutting coal production links such as the highest amount of coal dust, followedIt is the amount of coal dust generated at coal loading, coal transportation and transportation transfer points. With the increase of mechanization, coal dustThe amount of production is also increasing.
The harm of coal dust is mainly manifested in two aspects, one is the explosion, the other is the occupational disease.Workers long-term inhalation of coal dust prone to coal lung disease, dust containing silica will suffer from silicosis, bothThey are all occupational diseases that endanger the health of coal miners.
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