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What is coal and gas outburst?
Release time:
2022-11-04
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What is coal and gas outburst?
- What is coal and gas outburst?
The so-called coal and gas outburst refers to the pressure, broken coal and gas from the coal body suddenly to the mining space of a large number of ejection, is another type of special gas emission.
In general, a large amount of methane gas (the main component is methane) is formed in the process of coal formation. Due to the pressure of the upper rock mass and the surrounding constraints, these gases exist in a large density or even in a solid state. Once affected by mining, these gases will be released quickly, forming a gas emission.
Therefore, to strengthen the ventilation of the stope is to take away these gases (some are also called coalbed methane), so that the personnel working in the underground can get normal air.
When the mining process because of changes in the workplace pressure and technical measures and management measures to deal with improper, it may form coal and gas outburst, then a large number of gas with broken coal rushed out together, causing a large number of casualties, resulting in equipment and facilities damage. Sometimes there is even an explosion. In fact, many cases can be effectively controlled.
However, accidents caused by insufficient management and technical level and even insufficient sense of responsibility are still occurring.
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