A sealed negative pressure gas extraction pipeline automatic slag discharge and water discharge device

Abstract

The utility model discloses a sealed negative pressure extraction gas pipeline automatic slag discharge and water discharge device, comprising a water slag filter, a slag discharge and water discharge device and a wind shield mechanism, the water slag filter is provided with an air inlet and an air outlet, a filter screen is provided between the air inlet and the air outlet to filter the gas entering from the air inlet; the slag discharge and water discharge device can realize automatic slag discharge by means of the gravity of the water slag by arranging blades and spring sheets; the wind shield mechanism comprises a rectangular cavity, a first wind shield and a second wind shield, the upper opening of the rectangular cavity is connected to the water outlet, the first wind shield is in a normally closed state through an elastic hinge, the second wind shield is opened or closed by a magnet, and the second wind shield is closed when the first wind shield is opened. The device can purify gas and remove water slag in the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of mine gas extraction, in particular to an automatic slag and water discharge device for a sealed negative pressure gas extraction pipeline. Background Art

[0002] Coal mine gas extraction is an important part of effective gas control. Since the gas is extracted by negative pressure extraction, a large amount of water and coal slag in the borehole will enter the extraction pipeline, which will cause damage to the pneumatic equipment and pipeline blockage, seriously affecting the extraction effect. Manual and automatic are the two commonly used methods of slag removal and water discharge in mines. However, manual slag dischargers require labor costs and are inefficient; automatic slag dischargers generally trigger the first windshield switch by setting a buoyancy ball with a sensing function in the container to achieve automatic slag removal and water discharge. However, when there is a lot of coal slag carried by the extracted gas, it will cover the surface of the buoyancy ball, thereby affecting the realization of the automatic slag discharge function, and there are many unstable factors. Utility Model Content

[0003] The utility model aims to provide a sealed negative pressure gas extraction pipeline automatic slag and water discharge device to solve the problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a sealed negative pressure gas extraction pipeline automatic slag discharge and water discharge device, comprising:

[0005] The water slag filter is used to filter gas; the water slag filter comprises a cylindrical cavity, one side of the cylindrical cavity is provided with an air inlet, and the other side is provided with an air outlet, the air inlet is used for gas to enter, and the air outlet is used for gas to flow out, a filter screen is provided in the cylindrical cavity, the gas passes through the filter screen, and solid particles in the gas are filtered;

[0006] The slag discharger is used to process the water slag in the gas pipeline; the slag discharger is located below the water slag filter, and includes a cylindrical shell and a water slag conveying mechanism, the upper part of the cylindrical shell is provided with a water inlet, and the lower part is provided with a water outlet; the water slag conveying mechanism is located inside the cylindrical shell, and includes blades and a rotating shaft, the rotating shaft coincides with the central axis of the cylindrical shell, and three blades are circumferentially arranged on the rotating shaft at equal angles;

[0007] The wind shield mechanism includes a rectangular cavity, a first wind shield and a second wind shield, the upper opening of the rectangular cavity is connected to the water outlet, one end of the first wind shield is connected to an elastic hinge, and the elastic hinge is fixed to one side of the upper opening of the rectangular cavity, and the first wind shield can form a normally closed state through the upper opening of the rectangular cavity; the second wind shield is located below the first wind shield, one end of which is hinged to one side of the bottom opening of the rectangular cavity, and the second wind shield opens and closes the bottom opening of the rectangular cavity through a magnet; the second wind shield is closed when the first wind shield is opened.

[0008] As a further improvement of the present invention, the height of the air outlet is higher than the height of the air inlet, and the filter is located between the air outlet and the air inlet.

[0009] As a further improvement of the utility model, the internal cavity of the water-slag filter is a cylindrical cavity, the cylindrical cavity is placed vertically, and the cylindrical shell of the slag and water discharger is placed horizontally.

[0010] As a further improvement of the utility model, the device also includes an upper sealing plate, which is used to open or close the upper opening of the cylindrical cavity.

[0011] As a further improvement of the utility model, a concave arc-shaped transition slope (26) is provided between the air inlet and the water inlet for introducing water slag into the water inlet.

[0012] As a further improvement of the utility model, a roller is provided at the end of the blade, and the roller can roll on the inner wall of the cylindrical shell.

[0013] As a further improvement of the utility model, an elastic stopper is provided at one end of the water inlet, and the elastic stopper is in contact with the roller to intermittently stop the rotation of the blade.

[0014] As a further improvement of the utility model, a monitor is provided at the upper opening of the rectangular cavity for monitoring the opening or closing status of the first windshield. The monitor is connected to the magnet and is also used to control the magnetic on and off of the magnet, thereby closing or opening the second windshield.

[0015] As a further improvement of the present invention, the cylindrical cavity, the inner wall of the cylindrical shell and the surface of the blade are all sprayed with an anti-stick and anti-static coating.

[0016] As a further improvement of the utility model, the filter screen is formed by vertically cross-weaving a plurality of steel wires.

[0017] The beneficial effects of the utility model are:

[0018] (1) The utility model provides a water-slag filter at the upper part, and the gas passes through the upper part, and the tiny solid particles in the gas are filtered after passing through the filter screen; a slag discharger is provided at the lower part, and the water accumulated in the gas pipeline is discharged from the component, and the discharge is automatic, without manual operation;

[0019] (2) The utility model provides a wind shield mechanism, namely, a first wind shield plate and a second wind shield plate, which can, on the one hand, drain the accumulated water and, on the other hand, prevent gas from leaking from the bottom, thereby ensuring the air tightness of the outlet;

[0020] (3) The utility model provides an upper sealing plate on the water residue filter, and the internal filter screen and blades can be cleaned and the residue removed by opening the upper sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a main schematic diagram of the sealed negative pressure gas extraction pipeline automatic slag and water discharge device of the utility model;

[0022] Figure 2 It is a side view schematic diagram of the automatic slag and water discharge device for sealed negative pressure gas extraction pipeline of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the filter;

[0024] In the figure,

[0025] 1-water slag filter, 11-cylindrical cavity, 12-air inlet, 13-air outlet, 14-filter screen, 15-upper sealing plate;

[0026] 2-slag discharger, 21-cylindrical shell, 210-water inlet, 211-water outlet, 22-blade, 23-rotating shaft, 24-roller, 25-spring sheet, 26-transition slope;

[0027] 3-wind shielding mechanism, 31-rectangular shell, 32-first wind shielding plate, 33-second wind shielding plate, 34-elastic hinge, 35-monitor, 36-magnet. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-Figure 3As shown, a sealed negative pressure extraction gas pipeline automatic slag discharge and water discharge device includes a water slag filter 1, a slag discharge and water discharge device 2 and a wind shield mechanism 3, wherein the main body of the water slag filter 1 is a vertically arranged cylindrical cavity 11 with a diameter of 250 mm. An air inlet 12 is arranged on one side of the cylindrical cavity 11, and an air outlet 13 is arranged on the other side. The air inlet 12 is used for gas entry, and the air outlet 13 is used for gas outflow. A filter screen 14 is arranged in the cylindrical cavity 11. The filter screen 14 is formed by vertically cross-weaving a plurality of steel wires, and the pore size is 1 mm. The gas passes through the filter screen 14 to filter the solid particles in the gas. The air inlet 12 is lower than the air outlet 13 on the high bottom, and the gas flows in the cylindrical cavity 11 at a negative pressure. When the gas passes through the filter screen 14, the tiny particles in the gas can be filtered. The slag discharge and water discharge device 2 is used to process the water slag in the gas pipeline. The device also includes an upper sealing plate 15, which is provided with a handle. The upper sealing plate 15 is used to open or close the upper opening of the cylindrical cavity 11, and is used for regular inspection and removal of accumulated water slag inside the device.

[0030] The slag discharger 2 is located below the slag filter 1, and includes a cylindrical shell 21 and a slag conveying mechanism. The cylindrical shell 21 is placed horizontally relative to the cylindrical cavity 11, and is provided with a water inlet 210 at the upper part and a water outlet 211 at the lower part. The slag conveying mechanism is located inside the cylindrical shell 21, and includes blades 22 and a rotating shaft 23. The rotating shaft 23 coincides with the central axis of the cylindrical shell 21, and three blades 22 are arranged on the rotating shaft 23 at an angle of 120 degrees. A concave arc-shaped transition slope 26 is provided between the air inlet 12 and the water inlet 210, which is used to introduce the slag into the water inlet 210. Specifically, a roller 24 is provided at the end of the blade 22, and the roller 24 can roll on the inner wall of the cylindrical shell 21. An elastic stopper is provided at one end of the water inlet 210, specifically a vertically placed spring sheet 25, which contacts the roller 24 and is used to intermittently block the rotation of the blade 22.

[0031] The windshield mechanism 3 includes a rectangular cavity 31, a first windshield 32 and a second windshield 33. The upper opening of the rectangular cavity 31 is connected to the water outlet 211. One end of the first windshield 32 is connected to an elastic hinge 34. The elastic hinge 34 is fixed to one side of the upper opening of the rectangular cavity 31. The first windshield 32 can form a normally closed state with the upper opening of the rectangular cavity 31 through the elastic hinge 34. The second windshield 33 is located below the first windshield 32, and one end is hinged to one side of the bottom opening of the rectangular cavity 31. The second windshield 33 opens and closes the bottom opening of the rectangular cavity 31 through a magnet 36; when the first windshield 32 is opened, the second windshield 33 is closed. A monitor 35 is provided at the upper opening of the rectangular cavity for monitoring the opening or closing state of the first windshield 32. The monitor 35 is connected to the magnet 36 for controlling the magnetic on and off of the magnet 36, thereby closing or opening the second windshield 33.

[0032] The cylindrical cavity 11, the inner wall of the cylindrical shell 21 and the blade surface of the blade 22 are all sprayed with anti-stick and anti-static coatings, which can effectively prevent the adhesion of water residue and increase the normal use time.

[0033] The working principle of the device is as follows: the device is connected between two gas extraction pipelines, one side is connected to the air inlet 12 of the water slag filter 1, and the other side is connected to the air outlet 13 of the water slag filter 1. The gas flows in the cylindrical cavity 11 and filters the particles after passing through the filter 14.

[0034] When water slag passes through the gas extraction pipeline, it flows downward from the air inlet 12, passes through the transition break 26, enters the cylindrical shell 21 from the water inlet, and falls on the first blade 22 ( Figure 1 The rightmost leaf in the ), the third leaf ( Figure 1 The roller 24 on the uppermost blade 22 contacts the spring sheet 25 and is blocked by the spring sheet 25. At this time, the three blades 22 do not rotate. When the weight of the water residue accumulated on the first blade 22 reaches a certain limit, the spring sheet 25 can no longer block the third blade 22, and the third blade 22 starts to rotate. At this time, the water residue on the first blade 22 flows out from the water outlet 211. This process is repeated and is automatically executed without manual operation.

[0035] The first windshield 22 on the windshield mechanism 2 is usually supported by the elastic hinge 24 and is in a closed state. When the water slag flows out from the water outlet 211, the weight of the water slag opens the first windshield 22. At the same time, the monitor 25 located on the left side of the first windshield 22 detects that the first windshield 22 has been opened, and it energizes the magnet 26, which generates magnetism and closes the second windshield 23. When the water slag completely passes through the first windshield 22, the first windshield 22 is closed again under the pressure of the elastic hinge, and the water slag flows onto the second windshield 23. The monitor 25 detects that the first windshield 22 is in a closed state, and it controls the magnet 26 to cut off the power, and the second windshield 23 opens, thereby releasing the water slag. The windshield mechanism 22 is provided with two modes of opening or closing at different times, mainly to improve the airtightness of the device and prevent the external air from affecting the purity of the gas. A position switch and a controller are provided in the monitor 25. The position switch is used to monitor the opening and closing status of the first baffle 22, and the controller is used to switch the power on and off to the magnet.

[0036] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Various changes that can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention are all within the protection scope of the claims of the present invention.

Claims

1. A sealed negative pressure gas extraction pipeline automatic slag and water discharge device, characterized in that: include A water slag filter (1) is used for filtering gas; the water slag filter (1) comprises a cylindrical cavity (11), an air inlet (12) is arranged on one side of the cylindrical cavity (11), and an air outlet (13) is arranged on the other side, the air inlet (12) is used for gas to enter, and the air outlet (13) is used for gas to flow out, and a filter screen (14) is arranged on the cylindrical cavity (11), and the gas passes through the filter screen to filter solid particles in the gas; A slag discharger (2) is used to process the water slag in the gas pipeline; the slag discharger (2) is located below the water slag filter (1), and comprises a cylindrical shell (21) and a water slag conveying mechanism, the cylindrical shell (21) is provided with a water inlet (210) at the top and a water outlet (211) at the bottom; the water slag conveying mechanism is located inside the cylindrical shell (21), and comprises blades (22) and a rotating shaft (23), the rotating shaft (23) coincides with the central axis of the cylindrical shell (21), and three blades (22) are circumferentially arranged at equal angles on the rotating shaft (23); The wind shield mechanism (3) comprises a rectangular cavity (31), a first wind shield (32) and a second wind shield (33); the upper opening of the rectangular cavity (31) is connected to the water outlet (211); one end of the first wind shield (32) is connected to an elastic hinge (34); the elastic hinge (34) is fixed to one side of the upper opening of the rectangular cavity (31); the first wind shield (32) can form a normally closed state with the upper opening of the rectangular cavity (31) through the elastic hinge (34); the second wind shield (33) is located below the first wind shield (32); one end of the second wind shield (33) is hinged to one side of the bottom opening of the rectangular cavity (31); the second wind shield (33) opens and closes the bottom opening of the rectangular cavity (31) through a magnet (36); when the first wind shield (32) is opened, the second wind shield (33) is closed.

2. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 1 is characterized in that: The height of the air outlet (13) is higher than the height of the air inlet (12), and the filter (14) is located between the air outlet (13) and the air inlet (12).

3. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 1 is characterized in that: The cylindrical cavity (11) is placed vertically, and the cylindrical shell (21) of the slag discharger (2) is placed horizontally.

4. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 3 is characterized in that: It also comprises an upper sealing plate (15), wherein the upper sealing plate (15) is used to open or close the upper opening of the cylindrical cavity (11).

5. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 1 is characterized in that: A concave arc-shaped transition slope (26) is provided between the air inlet (12) and the water inlet (210) for introducing water slag into the water inlet (210).

6. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 1 is characterized in that: A roller (24) is provided at the end of the blade (22), and the roller (24) can roll on the inner wall of the cylindrical shell (21).

7. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 6 is characterized in that: An elastic stopper is provided at one end of the water inlet (210), and the elastic stopper is in contact with the roller (24) and is used to intermittently stop the rotation of the blade (22).

8. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 6 is characterized in that: A monitor (35) is provided at the upper opening of the rectangular cavity for monitoring the opening or closing state of the first wind shield (32); the monitor (35) is connected to the magnet (36) and is also used to control the magnetic switching of the magnet (36), thereby closing or opening the second wind shield (33).

9. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 1 is characterized in that: The cylindrical cavity (11), the inner wall of the cylindrical shell (21) and the surface of the blade (22) are all sprayed with an anti-stick and anti-static coating.

10. The sealed negative pressure gas extraction pipeline automatic slag and water discharge device according to claim 1, characterized in that: The filter screen (14) is formed by vertically cross-weaving a plurality of steel wires.

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