CN209129657U

CN209129657U - A kind of coal mine gas drainage automatic water drainage device

Info

Publication number: CN209129657U
Application number: CN201821586831.1U
Authority: CN
Inventors: 刘向兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2019-07-19
Anticipated expiration: 2028-09-28

Abstract

The utility model relates to coal mine gas drainage fields.A kind of coal mine gas drainage automatic water drainage device, including sedimentation basin and the pond that discharges water.Sedimentation basin is using the buoyancy and pressure difference of water come the switch of control valve, and when water storage, the valve of sedimentation basin in a state of nature, open by check valve, and the second valve is closed, and the first valve is opened, and sedimentation basin starts to intake.When the water accumulation in sedimentation basin is to certain altitude, the second valve is opened, and check valve and the first valve are closed, and the third valve opening that the pond that discharges water is led under hydraulic pressure carries out discharge water.The utility model solves the problems, such as that existing tailrace coal slime blocking water outlet, structure is complicated, at high cost, has saved human resources, provides safeguard for Safety of Coal Mine Production.

Description

A kind of coal mine gas drainage automatic water drainage device

Technical field

The utility model relates to coal mine gas drainage fields.

Background technique

During gas drainage under suction, liquid water and coal slime in coal rock layer inevitably lean on self weight and negative pressure to flow into extraction Pipeline.Due to altitude temperature difference effect, the vaporous water in pipeline can also condense into liquid water, these waters, which increase, will cause local pipeline and have Effect section obviously becomes smaller, or even blocking extraction pipeline, seriously affects gas drainage results.Therefore, water blocking problem during live extraction It is extremely prominent, and solve the problems, such as that the key equipment of water blocking is exactly tailrace.Tailrace currently used for coal mine mainly has to be put manually Hydrophone and automatic water drainage device, take time and effort when manually discharging water, and extraneous air is easy to cause to enter in gas drainage pipe, shadow Ring drainage efficient.When discharging the ponding in extraction pipeline using automatic water drainage device, a variety of gas drainage under suction hydrophones of the prior art are not Only structure is complicated and water outlet can be blocked because of coal slime, brings difficulty to subsequent discharge water.In order to preferably solve sludge The research of the problem of blocking, novel automatic water drainage device are particularly important.

Patent 201510932187.3 proposes that a kind of differential negative pressure automatic drainage device, this tailrace mainly include upper and lower two Part tank body, centre are separated with funnelform interlayer, can prevent coal slime from blocking water outlet to a certain extent, but make for a long time With rear, a large amount of coal slimes can be gathered on interlayer, time-consuming and laborious when replacing interlayer, maintenance efficiency is low.If by upper and lower two tank bodies It is independent, not only have on moisture storage capacity and significantly promoted, but also is simpler quick in the coal slime cleared up in sedimentation basin, section About human resources.

Patent 201210582256.9 devises a kind of simple tailrace of structure using law of connected vessels, this tailrace A water inlet is arranged in top, and water inlet pipe is connect by water inlet with caisson, a ball valve is installed in water inlet, in delivery box Lower part is provided with a slag-drip opening, is provided with drainage pipeline in the side of delivery box, discharge casing is set with drainage pipeline at U-shaped be connected to It sets.Although this tailrace effectively avoids coal slime blocking water outlet, its each displacement is limited, and works as gas drainage pipe When gas density in road is too high, inside and outside gas differential pressure is very big, will affect the effect that discharges water of the device.

The novel tailrace occurred at present is had plenty of using electronic sensor sensed water level and is discharged water using motor-driven valve control , such as patent 201420809215.3, it is inflammable methane gas in gas pumping pipeline, causes gas quick-fried using motor-driven valve It is fried, serious accident is brought to coal mine, therefore coal mine still has misgivings to the safety of such tailrace.

In conclusion how to be avoided that coal slime blocks water outlet, and neither influence to discharge water on the basis of structure is simple The displacement of device, and electronic mode is not used, guarantee that tailrace is reliably and securely run, is always coal mine gas extraction The knotty problem of pipe automatic water drainage device.

Summary of the invention

The technical problem to be solved by the utility model is to how to solve the deficiency of existing tailrace, purely mechanic knot is utilized Structure realizes that automation discharges water.

The technical scheme adopted by the utility model is a kind of coal mine gas drainage automatic water drainage device, including sedimentation basin (5) With the pond that discharges water (21), sedimentation basin (5) is connect by the exhaust pipe (17) at top with the upper wall of gas drainage pipe (18), sedimentation basin (5) side wall is connect by water inlet line (4) with the lower wall of gas drainage pipe (18), and sedimentation basin has the first ventilation at the top of (5) Pipeline (16), the side wall of sedimentation basin (5) have unicom pipeline (11) to connect with the pond that discharges water (21), and the pond that discharges water has second at the top of (21) The bottom of ventilation shaft (20), the pond that discharges water (21) connects outlet conduit (24), has buoy (10), buoy inside sedimentation basin (5) (10) it is fixed with two mandrils on, the top of every mandril is all fixedly connected with a ball, and the first of the top of the first mandril (6) Ball (2) protrudes into exhaust pipe (17), and second ball (15) at the top of the second mandril (13) protrudes into the first ventilation shaft (16) in；There are check valve (3) on water inlet pipe (4)；There are first valve body (1) in billiard table shape channel, the first valve in exhaust pipe (17) The first ball (2) at the top of body (1) and the first mandril (6) constitutes the first valve；In the internal top of first ventilation shaft (16) Empty diameter is greater than the second valve body that the step passageway of lower hollow diameter is constituted, the second valve body and the second ball (15) composition the Two valves；The pipeline center upper wall space of unicom pipeline (11) protrudes, and is fixed with one on the inner sidewall of the pond that discharges water (21) Cross bar (22), cross bar (22) center line are overlapped with the center line of unicom pipeline (11), and spring (23), spring are cased on cross bar (22) (23) have at the top of third ball (12), unicom pipeline (11), third ball (12), spring (23) constitute third valve.

As a kind of preferred embodiment: the bottom of exhaust pipe (17) has the first magnet (25), the two sides peace of the first mandril (6) Equipped in vertical upper the second magnet (26) corresponding with the first magnet (25), third magnet is arranged at the bottom of the first ventilation shaft (16) (14), the two sides of the second mandril (13) are equipped in vertical upper the 4th magnet (27) corresponding with third magnet (14), the first magnetic Iron (25) and the second magnet (26) are heteropolar opposite, and third magnet (14) and the 4th magnet (27) are heteropolar opposite.

As a kind of preferred embodiment: the bottom of buoy (10) passes through rope (9) connection kickboard (7), the density of buoy (10) Less than the density of water, the density of kickboard (7) is greater than the density of water.

As a kind of preferred embodiment: mud discharging mouth (8) are arranged at the bottom of sedimentation basin (5).

As a kind of preferred embodiment: having the first protective cover (28), the second ventilation shaft at the top of the first ventilation shaft (16) (20) there are the second protective cover (19) at the top of.

It, will be from the beneficial effects of the utility model are: tailrace cabinet is creatively divided into two parts by the utility model Sewage in gas drainage pipe first precipitates a period of time in sedimentation basin, and sewage stays in sedimentation basin, and clear water above passes through connection Inflow of threading a pipe discharges water in pond, efficiently solves the problems, such as that coal slime blocks water outlet, and clear up the coal slime in sedimentation basin more Add conveniently, has saved human resources.

Detailed description of the invention

Fig. 1 is the utility model structure diagram；

Wherein, the 1, first valve body, the 2, first ball, 3, check valve, 4, water inlet pipe, 5, sedimentation basin, the 6, first mandril, 7, floating Plate, 8, mud discharging mouth, 9, rope, 10, buoy, 11, unicom pipeline, 12, third ball, the 13, second mandril, 14, third magnet, 15, the second ball, the 16, first ventilation shaft, 17, exhaust pipe, 18, gas drainage pipe, the 19, second protective cover, 20, second is logical Air piping, the 21, discharge water pond, 22, cross bar, 23, spring, 24, outlet conduit, the 25, first magnet, the 26, second magnet, the 27, the 4th Magnet, the 28, first protective cover.

Specific embodiment

As shown in Figure 1, the utility model is made of sedimentation basin 5 and 21 two parts of pond that discharge water, the row that sedimentation basin 5 passes through top Feed channel 17 is connect with the upper wall of gas drainage pipe 18, and the side wall of sedimentation basin 5 passes through under water inlet line 4 and gas drainage pipe 18 First ventilation shaft 16 is arranged at wall connection, the top of sedimentation basin 5, and the side wall of sedimentation basin 5 has unicom pipeline 11 to connect with the pond 21 that discharges water, Second ventilation shaft 20 is arranged at the discharge water top in pond 21, and the bottom in the pond 21 that discharges water connects outlet conduit 24, has buoy inside sedimentation basin 5 10, two mandrils are fixed on buoy 10, and the top of every mandril is all fixedly connected with a ball, the top of the first mandril 6 First ball 2 protrudes into exhaust pipe 17, and second ball 15 at the top of the second mandril 13 protrudes into the first ventilation shaft 16；Into There is check valve 3 on water pipe 4；There are first valve body 1 in billiard table shape channel, 6 top of the first valve body 1 and the first mandril in exhaust pipe 17 The first ball 2 constitute the first valve；Upper hollow diameter inside first ventilation shaft 16 is greater than the platform of lower hollow diameter The second valve body that stepped passageway is constituted, the second valve body and the second ball 15 constitute the second valve；The pipeline center of unicom pipeline 11 Upper wall space protrudes, and a cross bar 22,22 center line of cross bar and unicom pipeline 11 are fixed on the inner sidewall in the pond 21 that discharges water Center line be overlapped, be cased with spring 23 on cross bar 22, third ball 12, unicom pipeline 11, third ball are arranged at the top of spring 23 12, spring 23 constitutes third valve.First magnet 25 is arranged at the bottom of exhaust pipe 17, and the two sides of the first mandril 6 are equipped with perpendicular Directly upper second magnet 26 corresponding with the first magnet 25, third magnet 14, the second mandril 13 are arranged at the bottom of the first ventilation shaft 16 Two sides be equipped in vertical upper the 4th magnet 27 corresponding with third magnet 14, the first magnet 25 and the heteropolar phase of the second magnet 26 Right, third magnet 14 and the 4th magnet 27 are heteropolar opposite.The bottom of buoy 10 connects kickboard 7, the density of buoy 10 by rope 9 Less than the density of water, the density of kickboard 7 is greater than the density of water.Mud discharging mouth 8 is arranged at the bottom of sedimentation basin 5.First ventilation shaft 16 First protective cover 28 is arranged at top, and the second protective cover 19 is arranged at the top of the second ventilation shaft 20.

Working principle and the course of work

Gas drainage under suction drains gas using the subnormal ambient of gas drainage pipe, during drawing out methane and companion With there is being mixed into for water and coal slime, the drainage efficient of gas can be seriously affected, installs the utility model additional in gas drainage pipeline 18 Tailrace is to export the water and coal slime in extraction pipeline.Water and coal slime in gas drainage pipeline 18 lead under gravity Water inlet pipe 4 is crossed to open check valve 3 and then flow into sedimentation basin 5, with the raising of water level in sedimentation basin 5, buoy 10 and 7 institute of kickboard It is gradually increased and starts to occur rising phenomenon by buoyancy, the first magnet 25 and the second magnet 26 are slowly close, 14 He of third magnet 4th magnet 27 is slowly close, and when reaching in the attracting magnetic field range of the two, magnet sucks and causes up and down under magneticaction First valve is closed, and the second valve is opened, and under atmospheric pressure, check valve 3 is closed, and third valve is opened, on sedimentation basin 5 The clear water of layer enters the pond 21 that discharges water by unicom pipeline 11, and the water level in sedimentation basin 5 is begun to decline, and buoyancy suffered by buoy 10 starts It reduces, when the gravity minus buoyancy of 7, two buoy 10, kickboard mandrils is greater than the first magnet 25 and the second magnet 26 and third When the sum of magnet 14 and the 4th magnet 27, buoy 10 declines, and two mandril declines, the first valve, check valve 3 are opened, the second valve Door, third valve are closed, and sedimentation basin 5 be in subnormal ambient, restore reset condition, start the work that discharges water of subsequent cycle, it is all and Renew realization automatic draining.First protective cover 28 and the second protective cover 19 are similar with the protective cover that discharges water on vertical chimney, are all Water enters in order to prevent.

Claims

1. a kind of coal mine gas drainage automatic water drainage device, it is characterised in that: including sedimentation basin (5) and the pond that discharges water (21), sedimentation basin (5) it is connect by the exhaust pipe (17) at top with the upper wall of gas drainage pipe (18), the side wall of sedimentation basin (5) passes through water inlet pipe (4) it connect, has at the top of sedimentation basin (5) the first ventilation shaft (16) with the lower wall of gas drainage pipe (18), the side of sedimentation basin (5) Wall has unicom pipeline (11) to connect with the pond that discharges water (21), has the second ventilation shaft (20) at the top of the pond that discharges water (21), discharge water pond (21) bottom connects outlet conduit (24), has buoy (10) inside sedimentation basin (5), two mandrils are fixed on buoy (10), The top of every mandril is all fixedly connected with a ball, and first ball (2) at the top of the first mandril (6) protrudes into exhaust pipe (17) in, second ball (15) at the top of the second mandril (13) is protruded into the first ventilation shaft (16)；Water inlet pipe has list on (4) To valve (3)；There are first valve body (1) in billiard table shape channel, the first valve body (1) and the first mandril (6) top in exhaust pipe (17) The first ball (2) constitute the first valve；The internal upper hollow diameter of first ventilation shaft (16) is greater than lower hollow diameter Step passageway constitute the second valve body, the second valve body and the second ball (15) composition the second valve；Unicom pipeline (11) Pipeline center upper wall space protrudes, and a cross bar (22), cross bar (22) center are fixed on the inner sidewall of the pond that discharges water (21) Line is overlapped with the center line of unicom pipeline (11), is cased on cross bar (22) spring (23), and spring has third ball at the top of (23) (12), unicom pipeline (11), third ball (12), spring (23) constitute third valve.

2. a kind of coal mine gas drainage automatic water drainage device according to claim 1, it is characterised in that: the bottom of exhaust pipe (17) Portion has the first magnet (25), and the two sides of the first mandril (6) are equipped in vertical upper the second magnet corresponding with the first magnet (25) (26), the bottom of the first ventilation shaft (16) has third magnet (14), the two sides of the second mandril (13) be equipped with it is vertical upper with Corresponding 4th magnet (27) of third magnet (14), the first magnet (25) and the second magnet (26) are heteropolar opposite, third magnet (14) heteropolar opposite with the 4th magnet (27).

3. a kind of coal mine gas drainage automatic water drainage device according to claim 1, it is characterised in that: the bottom of buoy (10) is logical Rope (9) connection kickboard (7) is crossed, the density of buoy (10) is less than the density of water, and the density of kickboard (7) is greater than the density of water.

4. a kind of coal mine gas drainage automatic water drainage device according to claim 1, it is characterised in that: the bottom of sedimentation basin (5) There are mud discharging mouth (8).

5. a kind of coal mine gas drainage automatic water drainage device according to claim 1, it is characterised in that: the first ventilation shaft (16) Top have the first protective cover (28), have the second protective cover (19) at the top of the second ventilation shaft (20).