Wind pressuring arrangement method of deep well and mine

Abstract

The invention discloses a distribution method of underground high-pressure air, which is applicable to the distribution of high-pressure air needed by pneumatic devices and tools in the operations of underground excavation and passageway reconstruction, etc. The invention adopts a proposal that a compressor station is arranged inside a branch return airway which is connected in parallel to a main return airway, and a filtering apparatus is arranged at the intake side of the compressor to filter the ventilation air methane to change the ventilation air methane into clean air which meets the standards required by the compressor. The filtering apparatus is provided with three air valves which are arranged in the intake airway of the compressor, wherein, the space between the air valves is 3 to 5 meters; a water curtain is arranged at the first air valve; each air valve is provided with an air filter screen. The distribution method of underground high-pressure air in the invention is capable of improving the efficiency of the underground air compressor system, improving the working environment of the compressor, and ensuring the supply of the high-pressure air without consuming the fresh air underground.

Description

technical field [0001] The invention relates to coal mine compressed air technology, in particular to a deep well compressed air arrangement method. Background technique [0002] At present, the compressed air required for the construction of pneumatic equipment and tools such as mine development, tunneling, and roadway renovation is supplied by the compressed air fan. With the continuous deepening of the mine, the scope of mining activities develops towards the boundary and depth of the mine field, and the air supply distance is getting longer and longer. Some mines reach more than 15,000 meters. Volume loss, air leakage loss, resistance loss, etc. are all increasing significantly, and the total loss of the system is as high as more than 30%. [0003] If the compressor station is directly located in the underground, close to the place where the wind is used, although the loss of the compressed air system can be reduced, the underground compressor must be installed in the a...

AI Technical Summary

Problems solved by technology

[0003] If the compressor station is directly located in the underground, close to the place where the wind is used, although the loss of the compressed air system can be reduced, the underground compressor must be installed in the air inlet tunnel with fresh air flow, which makes the compressor work. A large amount of heat generated in the well is directly dissipated in the downhole air, forming heat damage

In addition, since the underground fresh air is mixed with a lot of dust during the flow from the wellhead to the air point, the dust content is high

The mechanical wear of the compressor is increased, and the working environment becomes worse

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