Coal mine ventilation system and a device for extracting methane from mine air (options)

摘要

1. The ventilation system of the coal mine, which includes at least three ducts, clean air flows through one discharge duct, while the blower umbrellas are made with a large air supply area and are installed at the level of human growth, mine air containing concentrated methane is removed through the second duct at the same time, exhaust hoods are made with a large intake area and are installed at the highest points of drift, contaminated mine air is removed through the third duct, in t including heavy fractions, while exhaust hoods are designed with a large intake area and are installed at the lowest possible drift points, while air ducts have a length from the face to the ground, gas-tight partitions are installed along the entire length of the mine working across the longitudinal direction in the ceiling part, balloons filled with non-combustible gas, such as helium, are attached to the ceiling of the drift, while the balloons are heavier than methane, but lighter than air, at the level of the lower part of zonepronitsaemyh baffles installed sensors, level height-fixing sharov.2. The coal mine ventilation system according to claim 1, characterized in that the discharge ducts are attached to the drift wall in the lower part of the drift or the middle part along the entire length of the mine working, and the discharge duct umbrellas are installed after 3-5 or more meters. 3. The coal mine ventilation system according to claim 1, characterized in that the gas-tight partitions are installed with the expectation that the level line of the collected methane goes from the lower point of the higher partitions