CN209875205U - Drainage device for drainage drill hole of coal seam difficult to drain - Google Patents
Drainage device for drainage drill hole of coal seam difficult to drain Download PDFInfo
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- CN209875205U CN209875205U CN201920722075.9U CN201920722075U CN209875205U CN 209875205 U CN209875205 U CN 209875205U CN 201920722075 U CN201920722075 U CN 201920722075U CN 209875205 U CN209875205 U CN 209875205U
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Abstract
The utility model discloses a take out and adopt drilling drainage device in difficult coal seam of taking out, including the extraction pipeline, the extraction pipeline is located subaerial one end and installs extraction negative pressure machine, attached the liquid suction pipe of installing on the extraction pipeline inner wall, the inner wall that the one end that the liquid suction pipe is located the ground top was passed the extraction pipeline is connected with the pipe connection head, insert on the pipe connection head and establish and install the water tank connecting pipe, install the water tank on the water tank connecting pipe, insert on the water tank and be equipped with the negative pressure pipeline, and the negative pressure pipeline inserts and establish on the extraction negative pressure machine. The utility model has the advantages of reasonable design, make the water that forms negative pressure environment in the water tank and absorb extraction district through the extraction negative pressure machine on the extraction pipeline, and inside the liquid suction pipe was located the extraction pipeline, reduced the work load of drilling once more, saved equipment resources such as drilling, draw water, the switching of the first control valve of water tank accessible and second control valve selects extraction water and drainage state, increases the security and the controllability of device.
Description
Technical Field
The utility model relates to a coal seam is taken out and is adopted the field, especially relates to a device drains in taking out and adopt drilling of difficult coal seam.
Background
The condition that gas is often extracted from a coal seam is accumulated water, and because the depth of the accumulated water is deeper when the gas is extracted downwards, coal slag is carried by the water and deposited in the coal seam, and cannot be timely discharged, so that the gas drainage effect is influenced.
The existing water drainage device generally adopts drilling holes near an extraction well, and then uses water pumping and drainage equipment to extract and discharge the deposition water in the coal bed at the bottom, but the method needs additional drilling holes, needs a plurality of special extraction equipment, has large engineering quantity and needs more equipment, and increases the production cost.
Therefore, the drainage device for the extraction drill hole of the coal seam difficult to extract is designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a drainage device for drainage drill holes in coal seams which are difficult to drain.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a difficult take out and adopt drilling drainage device in coal seam that takes out, includes the extraction pipeline, the extraction pipeline is located subaerial one end and installs extraction negative pressure machine, attached the liquid suction pipe of installing on the extraction pipeline inner wall, the inner wall that the one end that the liquid suction pipe is located the ground top passed the extraction pipeline is connected with the pipe connection head, insert on the pipe connection head and establish and install the water tank connecting pipe, install the water tank on the water tank connecting pipe, insert on the water tank and be equipped with the negative pressure pipeline, and the negative pressure pipeline inserts and establish on the extraction negative pressure machine.
Preferably, the lower extreme of extraction pipeline is located near the coal seam, the first order filter pipe is installed to the lower extreme of extraction pipeline, the first order filter pipe box is established on the liquid suction pipe, the filter screen is installed to the lower extreme of first order filter pipe, the liquid suction pipe is close to the one end of filter screen and installs the second grade filter pipe, a plurality of infiltration holes have been seted up on the second grade filter pipe.
Preferably, install first control valve on the water tank connecting pipe, install the second control valve on the negative pressure pipeline, the water tank connecting pipe is inserted the one end of establishing on the water tank and is located the upper end of water tank, the negative pressure pipeline is inserted the one end of establishing the water tank and is located the top of water tank, and the latter half of water tank is located the below ground.
Preferably, a drainage pipeline is inserted into the water tank, a port of one end of the drainage pipeline, which is positioned inside the water tank, is close to the bottom of the water tank, and a sealing plug is installed at one end of the drainage pipeline, which penetrates through the water tank and is positioned outside the water tank.
Preferably, the bottom of the secondary filter pipe is closed with multiple penetration holes, the distance between the bottommost end of the secondary filter pipe and the filter screen is mm-mm, and the primary filter pipe and the secondary filter pipe are both positioned in the coal seam.
The utility model discloses following beneficial effect has:
1. the negative pressure environment is formed in the water tank by utilizing the negative pressure extraction machine of the coal seam extraction pipeline, and water at the coal seam extraction gas production part is upwards extracted through the negative pressure water tank and flows into the water tank for storage, so that the aim of taking out water drainage is fulfilled.
2. The liquid suction pipe is installed close to the inner wall of the extraction pipeline, additional drilling, punching and water drainage are avoided, workload is reduced, the liquid suction pipe is arranged in the extraction pipeline, drainage of an extraction position is accelerated, extraction speed is increased, and extraction difficulty of a coal seam difficult to extract is reduced.
3. The first control valve and the second control valve are respectively installed on the water tank connecting pipe and the negative pressure pipeline and used for closing the first control valve and the second control valve when water in the water tank is to be fully collected, so that the water in the water tank is prevented from being extracted by the negative pressure pipeline, the safety of the device is improved, the pressure in the water tank returns to the common pressure, and the water in the water tank is convenient to drain.
4. The liquid suction pipe below is provided with primary filter pipe and secondary filter pipe, prevents that the liquid suction pipe from being blockked up by impurity, installs drainage pipe in the water tank, and when the water tank collection was full, accessible pumping equipment connects on drainage pipe with the water tank internal water discharge, and the device of being convenient for can continuous work.
To sum up, the utility model has the advantages of reasonable design, through the extraction negative pressure machine on the extraction pipeline make the water that negative pressure environment formation in the water tank absorbed extraction district, and inside the liquid suction pipe was located the extraction pipeline, reduced the work load of drilling once more, saved equipment resources such as drilling, draw water, the switching of the first control valve of water tank accessible and second control valve selects extraction water and drainage state, increases the security and the controllability of device.
Drawings
Fig. 1 is a schematic structural view of an extraction drilling drainage device for a coal seam difficult to extract provided by the utility model;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
fig. 4 is the utility model provides a difficult coal seam of taking out takes out and adopts drilling water drain device's second grade filter tube part enlargements.
In the figure: 1 extraction pipeline, 2 extraction negative pressure machines, 3 liquid suction pipes, 4 water tanks, 5 drainage pipelines, 6 sealing plugs, 7 second control valves, 8 negative pressure pipelines, 9 primary filter pipes, 10 secondary filter pipes, 11 filter screens, 12 pipeline connectors, 13 first control valves, 14 water tank connecting pipes and 15 coal beds.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, an extraction drilling drainage device for a coal seam difficult to extract comprises an extraction pipeline 1, wherein one end of the extraction pipeline 1, which is positioned on the ground, is provided with an extraction negative pressure machine 2, the inner wall of the extraction pipeline 1 is attached with an extraction pipe 3, one end of the extraction pipe 3, which is positioned above the ground, penetrates through the inner wall of the extraction pipeline 1 and is connected with a pipe connector 12, the pipe connector 12 is provided with a water tank connecting pipe 14 in an inserting manner, a water tank 4 is arranged on the water tank connecting pipe 14, a negative pressure pipeline 8 is arranged on the water tank 4 in an inserting manner, the negative pressure pipeline 8 is arranged on the extraction negative pressure machine 2 in an inserting manner, a first control valve 13 is arranged on the water tank connecting pipe 14, a second control valve 7 is arranged on the negative pressure pipeline 8, one end of the water tank connecting pipe 14, which is arranged on the water tank 4 in an, a drainage pipeline 5 is inserted into the water tank 4, the port of one end of the drainage pipeline 5, which is positioned inside the water tank 4, is close to the bottom of the water tank 4, and a sealing plug 6 is installed at one end of the drainage pipeline 5, which penetrates through the water tank 4 and is positioned outside the water tank 4.
The lower extreme of extraction pipeline 1 is located near 15 coal seams, the one-level filter pipe 9 is installed to the lower extreme of extraction pipeline 1, the one-level filter pipe 9 cover is established on liquid suction pipe 3, filter screen 11 is installed to the lower extreme of one-level filter pipe 9, liquid suction pipe 3 is close to the one end of filter screen 11 and installs second grade filter pipe 10, a plurality of permeability holes have been seted up on second grade filter pipe 10, the bottom of second grade filter pipe 10 is many permeability holes closed, and the bottom of second grade filter pipe 10 has 30mm-60mm apart from filter screen 11, one-level filter pipe 9 and second grade filter pipe 10 all are located 15 coal seams.
When the utility model is used, the extraction pipeline 1 is inserted into a drilled extraction well, each mechanism is installed, then the extraction negative pressure machine 2 is opened, the extraction negative pressure machine 2 enables the coal gas in the extraction area to be extracted upwards, because the negative pressure pipeline 8 is connected with the water tank 4, the air flow flows from the water tank 4 to the extraction negative pressure machine 2, namely, a negative pressure environment is formed in the water tank 4, because the liquid extraction pipe 3 is connected with the water tank 4 through the water tank connecting pipe 14, the water in the extraction area flows upwards to the water tank 4 along the liquid extraction pipe 3, because the lower end of the liquid extraction pipe 3 is provided with the primary filter pipe 9 and the secondary filter pipe 10, the liquid extraction pipe 3 can not block the pipeline due to impurities, when the water in the water tank 4 is to be fully collected, the second control valve 7 and the first control valve 13 are closed in sequence, the pressure in the water tank 4 returns to the initial pressure, then the sealing plug 6 is opened, the water extraction equipment, and (5) extracting water in the water tank 4 to finish drainage in the extraction area.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a difficult take out and adopt drilling drainage device in coal seam, includes extraction pipeline (1), its characterized in that, extraction pipeline (1) are located subaerial one end and install extraction negative pressure machine (2), attached suction pipe (3) of installing on extraction pipeline (1) inner wall, the one end that suction pipe (3) are located the ground top is passed the inner wall connection that extracts pipeline (1) and is had pipe connection head (12), insert on pipe connection head (12) and establish and install water tank connecting pipe (14), install water tank (4) on water tank connecting pipe (14), insert on water tank (4) and be equipped with negative pressure pipeline (8), and negative pressure pipeline (8) insert and establish on extraction negative pressure machine (2).
2. The drainage device for the extraction drill hole in the coal seam difficult to extract according to claim 1, wherein the lowest end of the extraction pipeline (1) is located near the coal seam (15), a primary filter pipe (9) is installed at the lowest end of the extraction pipeline (1), the primary filter pipe (9) is sleeved on the liquid extraction pipe (3), a filter screen (11) is installed at the lower end of the primary filter pipe (9), a secondary filter pipe (10) is installed at one end, close to the filter screen (11), of the liquid extraction pipe (3), and a plurality of penetration holes are formed in the secondary filter pipe (10).
3. The drainage device for the drainage drill hole of the coal seam difficult to drain is characterized in that a first control valve (13) is installed on the water tank connecting pipe (14), a second control valve (7) is installed on the negative pressure pipeline (8), one end, inserted into the water tank (4), of the water tank connecting pipe (14) is located at the upper end of the water tank (4), one end, inserted into the water tank (4), of the negative pressure pipeline (8) is located at the top of the water tank (4), and the lower half portion of the water tank (4) is located below the ground.
4. The drainage drilling and water discharging device for the extraction of the coal seam with difficulty in pumping according to claim 1, characterized in that a drainage pipeline (5) is inserted into the water tank (4), the port of one end of the drainage pipeline (5) positioned inside the water tank (4) is close to the bottom of the water tank (4), and a sealing plug (6) is installed at one end of the drainage pipeline (5) penetrating through the water tank (4) and positioned outside the water tank (4).
5. The drainage device for the extraction drill hole in the coal seam with difficulty in coal extraction according to claim 2, wherein the bottom of the secondary filter pipe (10) is closed with multiple penetration holes, the distance between the bottommost end of the secondary filter pipe (10) and the filter screen (11) is 30-60 mm, and the primary filter pipe (9) and the secondary filter pipe (10) are both located in the coal seam (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722075.9U CN209875205U (en) | 2019-05-20 | 2019-05-20 | Drainage device for drainage drill hole of coal seam difficult to drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722075.9U CN209875205U (en) | 2019-05-20 | 2019-05-20 | Drainage device for drainage drill hole of coal seam difficult to drain |
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| Publication Number | Publication Date |
|---|---|
| CN209875205U true CN209875205U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920722075.9U Active CN209875205U (en) | 2019-05-20 | 2019-05-20 | Drainage device for drainage drill hole of coal seam difficult to drain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894672A (en) * | 2020-08-14 | 2020-11-06 | 山东科技大学 | Method for advanced treatment of roof separation water damage of stope by adopting ground drainage drilling |
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2019
- 2019-05-20 CN CN201920722075.9U patent/CN209875205U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894672A (en) * | 2020-08-14 | 2020-11-06 | 山东科技大学 | Method for advanced treatment of roof separation water damage of stope by adopting ground drainage drilling |
| CN111894672B (en) * | 2020-08-14 | 2021-11-23 | 山东科技大学 | Method for advanced treatment of roof separation water damage of stope by adopting ground drainage drilling |
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