CN210564641U - Coal seam gas extraction device on coal mine ground - Google Patents
Coal seam gas extraction device on coal mine ground Download PDFInfo
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- CN210564641U CN210564641U CN201921566316.1U CN201921566316U CN210564641U CN 210564641 U CN210564641 U CN 210564641U CN 201921566316 U CN201921566316 U CN 201921566316U CN 210564641 U CN210564641 U CN 210564641U
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Abstract
The utility model relates to a colliery ground takes out and adopts coal seam gas device, including the air compressor machine that is located subaerial and the gas holder with air compressor machine UNICOM, the gas holder is connected with the pneumatic jet pump that is located the mine depths through compressed air pipeline, and the suction pipe end portion of pneumatic jet pump is equipped with the filter screen, and the output pipe end portion is connected with pipeline, is equipped with anti-belt cleaning device on the filter screen, and pipeline is last to be equipped with the rubber hole sealing gasbag that adapts to the well head size, and pipeline end connects gradually water gas separator and gas storage; the gas monitoring sensor, the air compressor and the gas monitoring sensor are connected with an electric cabinet on the ground through cables at the same horizontal position of the pneumatic jet pump. Through adopting this device, can effectively improve the extraction efficiency of gas, improve the factor of safety of mine, improve the life of device.
Description
(I) technical field
The utility model relates to a coal mining technical field, in particular to coal mine ground takes out and adopts coal seam gas device.
(II) background of the invention
The gas is associated gas in the coal seam mining process, is mainly methane gas in a narrow sense, and also comprises toxic and harmful gas which is gushed out from other coal seams in a broad sense, and belongs to a gas mixture. Coal bed gas belongs to explosive dangerous gas, and gas explosion always causes serious disasters which disturb coal mining and cause serious casualty accidents.
In order to effectively reduce the threat of gas explosion disasters, the gas in a coal mine layer needs to be reasonably extracted before coal mining so as to effectively reduce the gas content in the coal bed. The coal bed gas extraction can not only reduce the gas emission amount in the mining process, prevent the gas from exceeding the limit and accumulating, prevent the important measures of gas explosion and coal and gas outburst accidents, but also change the harm into the benefit, and develop and utilize the gas as the associated resources of the coal.
The patent number is CN 101629492B, the patent name is a draw-out device of mine gas discloses a gas extraction equipment, including the electric cabinet, deepen gas instrument and the sensor of mine depths, gas discharge mechanism includes pneumatic jet pump, pipeline, the gas holder and the air compressor machine that is connected to the electric cabinet, pneumatic jet pump stretches into gas instrument and sensor side, pipeline and pneumatic jet pump intercommunication, the compressed air pipeline that has the intercommunication between pneumatic jet pump and the gas holder, the air compressor machine links to each other with the gas holder. The device can greatly improve the speed of extracting gas, improve the mine safety factor, and is convenient to install and use. However, the gas extraction drilling plugging device is not designed, so that the gas extraction effect can be influenced, and if gas leaks out, the life health of operators can be threatened; moreover, the pneumatic jet pump can extract water, gas and coal dust impurities in the mine at the same time, the service life of an extraction pipeline can be influenced, and the gas concentration is reduced.
(III) contents of utility model
The utility model provides a colliery ground takes out and adopts coal seam gas device to solve the problem that exists in the above-mentioned technical background.
The utility model discloses a realize through following technical scheme:
a coal mine ground coal seam gas extraction device comprises an air compressor positioned on the ground and a gas storage tank communicated with the air compressor, wherein the gas storage tank is connected with a pneumatic injection pump through a compressed air pipeline, a filter screen is arranged at the end part of a suction pipe of the pneumatic injection pump, a conveying pipeline is connected at the end part of an output pipe of the pneumatic injection pump, and a hole sealing air bag is arranged on the conveying pipeline; the same horizontal position of pneumatic jet pump installs gas monitoring sensor, air compressor machine and gas monitoring sensor all link to each other with the electric cabinet that is located subaerial through the cable.
Preferably, the compressed air pipeline is communicated with an electromagnetic valve at a position close to the pneumatic jet pump, the electromagnetic valve is a two-position three-way electromagnetic valve, and two outlets of the electromagnetic valve are respectively communicated with the pneumatic jet pump and a suction pipe of the pneumatic jet pump.
Preferably, the size of the hole sealing air bag after being inflated is consistent with the size of a well mouth.
Preferably, the hole sealing air bag is made of rubber.
Preferably, the tail end of the conveying pipeline is connected with a water-gas separator and a gas storage device which are located on the ground in sequence.
The utility model has the advantages that:
the utility model provides a coal mine ground gas extraction coal seam device, which is provided with a gas monitoring sensor, when the gas concentration exceeds the standard, an electric cabinet can start an air compressor to drive a pneumatic jet pump to extract gas; the pneumatic injection pump is a pneumatic device, and the underground safety factor is high; the end part of the suction pipe of the pneumatic jet pump is provided with a filter screen which can filter out large particles such as coal dust and the like so as to prevent danger caused by friction in the conveying pipeline and scratch of the conveying pipeline; the compressed air pipeline is provided with an electromagnetic valve, so that high-pressure air flow can be guided into a suction pipe of the dynamic jet pump to perform reverse flushing on the filter screen, and the problem that the filter screen is easy to block is solved; the hole sealing air bags arranged according to the size of the well hole are arranged on the conveying pipeline, and when the pneumatic injection pump works, the hole sealing air bags can be filled with gas to block the well hole, so that the extraction efficiency is improved; the tail end of the conveying pipeline is connected with the water-gas separator and the gas storage device in sequence, so that the extracted gas is utilized, and waste is changed into valuable.
(IV) description of the drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the pneumatic injection pump of the present invention;
fig. 3 is a schematic view of the structure of the pneumatic injection pump and the filter screen of the present invention.
In the figure, 1-an air compressor, 2-an air storage tank, 3-a compressed air pipeline, 4-an electromagnetic valve, 5-a pneumatic jet pump, 51-an suction pipe, 52-an output pipe, 6-a filter screen, 61-a filter hole, 7-a gas monitoring sensor, 8-a conveying pipeline, 9-a hole sealing air bag, 10-an electric cabinet, 11-a cable, 12-an air storage device and 13-a water-gas separator.
(V) detailed description of the preferred embodiments
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described with reference to the accompanying drawings.
The utility model provides a colliery ground takes out and adopts coal seam gas device, including being located the above-ground air compressor machine 1 and with the gas holder 2 of 1 UNICOM of air compressor machine, can export high-pressure gas, provide stable air supply power for pneumatic jet pump. The air storage tank 2 is connected with a pneumatic injection pump 5 located in the deep part of a mine through a compressed air pipeline 3, the structure of the pneumatic injection pump is recorded on the China patent publication No. CN1912399, the pneumatic injection pump is a pneumatic extraction device, no moving part or power supply exists, only a sensor uses weak current, electric sparks are avoided, and the pneumatic injection pump is safe to use. The end part of the suction pipe 51 of the pneumatic injection pump 5 is provided with the filter screen 6 which can filter coal dust and the like to prevent the coal dust from being sucked into the pneumatic injection pump 5 and the conveying pipeline 8 to block the pipeline or scratch the pipeline and damage the pneumatic injection pump 5.
The compressed air pipeline 3 is communicated with an electromagnetic valve 4 at a position close to the pneumatic injection pump 5, the electromagnetic valve 4 is a two-position three-way electromagnetic valve, an inlet is communicated with the compressed air pipeline 3, and two outlets are respectively communicated with the pneumatic injection pump 5 and a suction pipe 51 of the pneumatic injection pump 5. After the filter screen 6 is blocked, the pneumatic injection pump 5 is abnormal, at this time, the electric cabinet 10 serving as the control device opens the valve communicated with the electromagnetic valve 4 and the suction pipe 51, the high-pressure airflow reversely flushes the filter screen through the filter hole 61, after the filter screen is flushed for a fixed time, the valve is closed, and the electromagnetic valve 4 and the valve of the pneumatic injection pump 5 are opened to continue gas extraction.
The end part of an output pipe 52 of the pneumatic injection pump 5 is connected with the conveying pipeline 8, a hole sealing air bag (9) is arranged on the conveying pipeline 8, the hole sealing air bag 9 is made of rubber, the size of the inflated air bag is consistent with the size of a well head, the inflated air bag is tightly attached to a well hole, the well hole can be blocked, the extraction efficiency is guaranteed, meanwhile, gas leakage is prevented, and danger is caused to operators outside.
At the same horizontal position gas monitoring sensor 7 of pneumatic jet pump 5, air compressor machine 1 and gas monitoring sensor 7 all link to each other with the electric cabinet 10 that is located subaerial through cable 11. The gas monitoring sensor 7 can monitor the gas concentration in the drilling well in real time, and once the gas concentration exceeds the calibration, the electric cabinet 10 commands the air compressor 1 to drive the whole device system to work.
The tail end of the conveying pipeline 8 is connected with a water-gas separator 13 and a gas storage device 12 which are located on the ground in sequence, water and gas which are extracted by the pneumatic jet pump 5 can be separated, then the gas is stored in the gas storage device, and after separation, the gas is utilized, so that waste is changed into valuable.
The working process is as follows: after the device is installed, an operator opens the electric cabinet 10, the gas monitoring sensor 7 starts to work, the content of gas in the well is monitored in real time, once the gas content exceeds the standard, the air compressor 1 is instructed to start, the pneumatic jet pump 5 is driven to pump the gas in the well, inevitably, coal dust, water and the like are extracted, solid impurities are filtered by the filter screen 6 (after the filter screen is blocked, the electric control box commands the electromagnetic valve to switch an outlet, high-pressure airflow reversely flushes the filter screen 6 through the filter hole 61 for cleaning for a fixed time, and is automatically switched back to be communicated with the pneumatic injection pump 5), gas and liquid can enter the conveying pipeline 8, the gas can prop the hole sealing air bag 9 on the conveying pipeline 8 to be clung to the wall of the well to play a role in sealing, then the extracted gas and liquid enter a water-gas separator 13 to filter water, and the gas enters a gas storage device 12 to be stored or extracted for use.
In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present invention, but do not require the present invention to be constructed or operated in a specific orientation, and therefore, cannot be construed as limiting the present invention. The terms "connected" and "connected" in the present invention are to be understood in a broad sense, and may be connected or detachably connected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.
The foregoing is a preferred embodiment of the present invention, and the description of the specific embodiments is only for better understanding of the idea of the present invention. To those skilled in the art, many modifications and equivalents may be made in accordance with the principles of the present invention and are deemed to fall within the scope of the invention.
Claims (5)
1. The utility model provides a colliery ground takes out and adopts coal seam gas device which characterized in that: the device comprises an air compressor (1) positioned on the ground and an air storage tank (2) communicated with the air compressor (1), wherein the air storage tank (2) is connected with a pneumatic injection pump (5) positioned in the deep part of a mine through a compressed air pipeline (3), a filter screen (6) is arranged at the end part of a suction pipe (51) of the pneumatic injection pump (5), a conveying pipeline (8) is connected at the end part of an output pipe (52), and a hole sealing air bag (9) is arranged on the conveying pipeline (8); the gas monitoring sensor (7) is arranged at the same horizontal position of the pneumatic jet pump (5), and the air compressor (1) and the gas monitoring sensor (7) are connected with an electric cabinet (10) which is arranged on the ground through cables (11).
2. The coal mine ground coal seam gas extraction device according to claim 1, characterized in that: the compressed air pipeline (3) is communicated with an electromagnetic valve (4) at a position close to the pneumatic injection pump (5), the electromagnetic valve (4) is a two-position three-way electromagnetic valve, and two outlets are respectively communicated with the pneumatic injection pump (5) and a suction pipe (51) of the pneumatic injection pump (5).
3. The coal mine ground coal seam gas extraction device according to claim 1, characterized in that: the size of the hole sealing air bag (9) after being inflated is consistent with that of the well mouth.
4. The coal mine ground coal seam gas extraction device according to claim 1 or 3, characterized in that: the hole sealing air bag (9) is made of rubber.
5. The coal mine ground coal seam gas extraction device according to claim 1, characterized in that: the tail end of the conveying pipeline (8) is connected with a water-gas separator (13) and a gas storage device (12) which are arranged on the ground in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921566316.1U CN210564641U (en) | 2019-09-20 | 2019-09-20 | Coal seam gas extraction device on coal mine ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921566316.1U CN210564641U (en) | 2019-09-20 | 2019-09-20 | Coal seam gas extraction device on coal mine ground |
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| Publication Number | Publication Date |
|---|---|
| CN210564641U true CN210564641U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921566316.1U Expired - Fee Related CN210564641U (en) | 2019-09-20 | 2019-09-20 | Coal seam gas extraction device on coal mine ground |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116139636A (en) * | 2023-02-15 | 2023-05-23 | 云南滇东雨汪能源有限公司 | Gas extraction device and system |
-
2019
- 2019-09-20 CN CN201921566316.1U patent/CN210564641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116139636A (en) * | 2023-02-15 | 2023-05-23 | 云南滇东雨汪能源有限公司 | Gas extraction device and system |
| CN116139636B (en) * | 2023-02-15 | 2023-09-12 | 云南滇东雨汪能源有限公司 | Gas extraction device and system |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |