Device for intensively and fast draining water in downward drainage drill hole

A technology of drainage drilling and drainage device, which is applied in drainage, safety device, gas discharge and other directions, can solve the problems of automatic drainage, affecting the effect of gas drainage, and inability to use a pipe drainage device to release water, so as to improve the drainage effect, Efficient and fast drainage effect

Inactive Publication Date: 2010-10-13
安徽省皖北煤电集团孟庄煤矿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the water accumulated in the borehole cannot be automatically discharged from the borehole after the gas is pumped down, it is also impossible to use the pipeline water release device to release water, resulting

Method used

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  • Device for intensively and fast draining water in downward drainage drill hole
  • Device for intensively and fast draining water in downward drainage drill hole

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Embodiment Construction

[0011] see figure 1 , in this embodiment, a three-way sealing sleeve composed of an inner tube and an outer tube is set in the drainage borehole 1, and an annular cavity as an air flow channel is provided between the inner tube and the side wall of the outer tube, and the externally connected output The air pipe 2 communicates with the annular cavity; the inner pipe is the drain pipe 3, and the bottom nozzle of the drain pipe 3 is connected with a drain hose inserted into the bottom of the drainage borehole; a drain valve 4 is set on the top nozzle of the drain pipe 3; One of the externally connected air pipes 2 is connected to the high-pressure air pipe 6 through the intake valve 5 , and the other is connected to the exhaust pipeline 8 through the exhaust valve 7 .

[0012] figure 1 As shown, during normal pumping, the exhaust valve 7 is in the open state, and the drain valve 4 and the intake valve 5 are both in the closed state. Among them, the closing of the intake valve ...

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Abstract

The invention discloses a device for intensively and fast draining water in a downward drainage drill hole. The device is characterized in that a three-way hole-sealing sleeve pipe composed of an inner pipe and an outer sleeve pipe is arranged in a drainage drill hole; an annular chamber used as an airflow channel is arranged between the side wall of the inner pipe and the side wall of the outer sleeve pipe, and an external air delivery pipe is communicated with the annular chamber; the inner pipe is used as a draining pipe, a nozzle at the bottom of the draining pipe is connected with a draining hose used for being inserted in the bottom of the drainage hole; the nozzle at the top of the draining pipe is provided with a water draining valve; and one path of the external air delivery pipe is connected with a high-pressure air pipe by an air inlet valve, and the other path is connected with a drainage pipeline by an air discharge valve. The device can effectively drain the accumulated water in the downward drainage hole, and ensure gas drainage effect.

Description

technical field [0001] The invention relates to a downward drainage borehole drainage device applied in coal mining. Background technique [0002] Since the water accumulated in the borehole cannot be automatically discharged from the borehole with the gas pumping, it is also impossible to use the pipeline water release device to release water, resulting in a large amount of water accumulated in the borehole, and with the extension of the pumping time, the hole There will be more and more water accumulated inside, which will seriously affect the gas drainage effect. Contents of the invention [0003] In order to avoid the shortcomings of the above-mentioned prior art, the present invention provides a centralized and rapid drainage device for downward drainage boreholes, so as to effectively discharge the accumulated water in the downward drainage boreholes and ensure the effect of gas drainage . [0004] The present invention solves technical problem and adopts following...

Claims

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Application Information

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IPC IPC(8): E21F16/00E21F7/00
Inventor 陈爱和杜贤流胡云强
Owner 安徽省皖北煤电集团孟庄煤矿
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