Anti-clogging drainage device in coal mine tunnel and use method

Abstract

The invention discloses an anti-clogging drainage device in a coal mine tunnel and a use method. The anti-clogging drainage device is composed of a water inlet section (1), an inclined hole water guide section (2), a control section (3) and an unconventional pumping and drainage section (4) from top to bottom, wherein the water inlet section (1) is composed of an upper layer tunnel sedimentation tank (1.1) and trash racks (1.2), and the trash racks (1.2) are arranged on the periphery of the upper layer tunnel sedimentation tank (1.1); and the inclined hole water guide section (2) is composed of a steel pipe (2.1) with holes, the upper end of the steel pipe (2.1) with the holes is arranged in the upper layer tunnel sedimentation tank (1.1), and the lower end of the steel pipe (2.1) with the holes is connected with the control section (3). The anti-clogging drainage device overcomes the defects that in the prior art, all tunnel openings entering a coal mine are closed, and once a water pump or a power supply circuit is damaged, maintenance is very difficult, and has the advantages that drainage is achieved through gravity, pumping and drainage of the water pump are not needed, and a large amount of operation cost is reduced.

Description

Technical field[0001]The present invention relates to the technical field of operation and maintenance of mining engineering, and more particularly to a drainage device and use method for anti-sparkling in a coal mine roadway.Background technique[0002]Coal mine vacuuming area refers to the cavity or cavity left by underground coal or coal gangue in the process of coal mine.[0003]For tilted coal seams, the mining rights of two or more coal mines are often overlap overlap in the planned projection, which is divided into coal mines with different mining rights according to elevation. In this case, different coal mines generally reserve a certain height of the anti-liquid coal column (boundary coal pillar), and there is no direct communication between the vacuum area.[0004]When the upper coal mine is closed, the vacuum area located underground is usually filled with water, and the water supply mainly includes groundwater, rainfall, etc. of the coal mine, mainly including the collapsed b...

AI Technical Summary

Problems solved by technology

The operation and maintenance cost of water pump drainage is high, and it is easy to pump impurities to the vicinity of the filter screen to cause silting;

[0007] In addition, after the coal mine is closed, the ventilation and lighting system will be dismantled, the gas in the tunnel will seriously exceed the standard, and personnel are strictly prohibited from entering, and all tunnel entrances entering the coal mine will be closed. Once the water pump or power supply line is damaged, it will be very difficult to repair

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