Gas, water and coal separation device of coal-mine gas spray hole

Abstract

The invention relates to a gas, water and coal separation device of a coal-mine gas spray hole. The gas, water and coal separation device comprises a borehole casing, four ways, a gas pre-extraction pipe, a drill pipe, a drilling machine, a drilling machine support, a seat stand, a coal guide pipe, a coal bunker, a bunker A coal unloading pressure switch, a bunker A movable coal unloading plate, a bunker dividing plate, a bunker A gas extraction and drainage pipe opening valve, a bunker A gas extraction and drainage pipe, a bunker A filter screen, a bunker A coal guide pipe valve, a bunker A coal guide branching pipe, a bunker B coal guide branching pipe, a bunker B coal guide pipe valve, a bunker B filter screen, a bunker B gas extraction and drainage pipe, a bunker B gas extraction and drainage pipe opening valve, a bunker B movable coal unloading plate, a bunker B coal unloading pressure switch, a coal baffle, a bunker A and a bunker B, wherein the bunker is a main separation device consisting of two separation bunkers of which the structures are the same; and the short-time storage and separation of the gas, water and coal can be alternately finished by the two separation bunkers. With adoption of the gas, water and coal separation device, through a manner of the double bunkers, the efficiency and stability in discharging and spraying matters can be greatly improved and the gas, coal and water can be uninterruptedly separated.

Description

technical field [0001] The invention relates to a safety-guaranteed separation device, in particular to a gas-water-coal separation device for coal mine gas injection holes. Background technique [0002] The occurrence conditions of coal seams in my country are complex. With the continuous deepening of mining depth, the pressure and content of coal seam gas continue to increase, and the risk of outburst is more serious. Coal and gas outburst accidents of varying degrees have occurred in mines in most parts of the country. The nozzle hole phenomenon in construction is still a worldwide problem. At present, although there are some safety devices for spray holes to ensure safety, there are many problems such as poor discharge of discharge, low efficiency, unstable equipment strength, etc., which may easily cause gas leakage into the workplace, posing safety hazards. Contents of the invention [0003] In order to solve the problem of safety hazards of coal seam gas injection h...

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Problems solved by technology

[0003] In order to solve the problem of safety hazards of coal seam gas nozzle holes, the present invention provides a gas-water coal separation device for coal m

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