Drilling water expansion blocking and drainage device

Abstract

The invention provides a drilling water expansion blocking and drainage device, and belongs to the technical field of drilling water prevention and treatment of underground engineering. The drilling water expansion blocking and drainage device comprises a flow guiding pipe, a water pressure control valve, a drainage control valve, a drainage pipe and a connecting pipe; end fastening parts are arranged at the upper end and the lower end of the flow guiding pipe correspondingly, a plurality of fastening protrusions are arranged on the outer wall of the flow guiding pipe, a water-expandable rubber layer is arranged on the position, between the two end fastening parts, of the outer wall of the flow guiding pipe, the fastening protrusions are wrapped with the water-expandable rubber layer, the outer wall of the water-expandable rubber layer protrudes outwards to form an anti-sliding edge, the lower end of the flow guiding pipe is sequentially connected with the water pressure control valve, the drainage control valve and the drainage pipe, and the water pressure control valve is connected with the drainage pipe through the connecting pipe; and after the drainage control valve is closed, when the water pressure of the flow guiding pipe is higher than the set water pressure value of the water pressure control valve, water of the flow guiding pipe can flow to the drainage pipe through the connecting pipe. The drilling water expansion blocking and drainage device has the beneficial effects that underground drilling water can be blocked and drained, and the problem of current coal mine underground drilling water can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of borehole water prevention and control in underground engineering, in particular to a borehole water expansion plugging and drainage device. Background technique [0002] According to incomplete statistics, coal mine water damage is the second largest disaster in daily production of coal mines after underground gas accidents. Every year, coal mines across the country are affected by water damage to varying degrees, which has caused immeasurable damage to the safety of coal mine production and the personal safety of employees. loss. Borehole water in coal mines is one of the important inducing factors of coal mine water disasters, and its treatment has gradually attracted the attention of relevant departments. Conventional treatment methods for borehole water in underground coal mines include "drillhole plugging" and "borehole water diversion". [0003] For drilling plugging, the applied materials are mai...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a borehole water expansion plugging and drainage device, which solves the technical problem that "current underground coal mine borehole water is difficult to be treated by conventional treatment methods such as borehole plugging and borehole water diversion"

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