Underground CMM extracting system: Unterschied zwischen den Versionen
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| − | Underground CMM extracting systems are installed in digging areas where the gas release during mining is so enormus, that the Methane | + | Underground CMM extracting systems are installed in digging areas where the gas release during mining is so enormus, that the Methane content in the ventilation air can reach more than 1%. |
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| + | The gas is extracted from the surrounding area of the coal layer.The boreholes are connected to the degassing pipe. This pipe leads the gas through a shaft to the zentral degassing station on the surface. | ||
| + | For more information visit * [http://www.epa.gov/cmop/resources/drain_degas.html] | ||
Version vom 6. März 2012, 13:21 Uhr
Underground CMM extracting systems are installed in digging areas where the gas release during mining is so enormus, that the Methane content in the ventilation air can reach more than 1%.
The gas is extracted from the surrounding area of the coal layer.The boreholes are connected to the degassing pipe. This pipe leads the gas through a shaft to the zentral degassing station on the surface.
For more information visit * [1]
