Efficient coal mine gas extraction device
Patent Information
- Application Number
- CN202422398689.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-09-30
AI Technical Summary
[0004]针对上述情况，为克服现有技术的缺陷，本实用新型提出的一种高效的煤矿瓦斯抽采装置，有效的解决了煤矿瓦斯抽采装置抽采效率低下，抽采一段时间，煤层底部形成负压，瓦斯气体无法抽出，而且煤层底部瓦斯气体无法完全抽出，开采时，仍有很大的爆炸风险的问题
[0011] The beneficial effects achieved by the above structure are as follows: the high-efficiency coal mine gas extraction device provided by the scheme is used for adsorbing and separating gas through the gas pressure swing adsorption tower, and then other separated gas is re-injected into the coal seam through the inflation pipe on the extension pipe one by the booster air pump, so that the internal gas pressure is stable, thereby the gas suction pump can quickly extract the gas mixed with gas from the coal seam through the air extraction pipe on the extension pipe two.
Smart Images
Figure CN223647872U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of gas extraction equipment, and particularly relates to an efficient coal mine gas extraction device. BACKGROUND
[0002] Gas is a harmful gas in coal mines in the last century, but is now considered a clean energy and has been recognized by the industry to a great extent. A large amount of gas is generated in coal mining, and gas in the mine needs to be extracted before mining. During extraction, drilling is performed on the coal seam, and then gas in the coal seam is extracted from the drill hole.
[0003] However, the existing coal mine gas extraction device has low extraction efficiency. After extraction for a period of time, negative pressure is formed at the bottom of the coal seam, gas cannot be extracted, and gas at the bottom of the coal seam cannot be completely extracted, which still has a great explosion risk during mining. INVENTION CONTENTS
[0004] In view of the above problems, the utility model provides an efficient coal mine gas extraction device to overcome the defects of the prior art and effectively solve the problems of low extraction efficiency of the coal mine gas extraction device, formation of negative pressure at the bottom of the coal seam after extraction for a period of time, inability to extract gas, inability to completely extract gas at the bottom of the coal seam, and great explosion risk during mining.
[0005] The utility model takes the technical scheme as follows: the utility model provides an efficient coal mine gas extraction device, which comprises a base, a circulating pressurization structure and an extraction structure, the circulating pressurization structure is arranged on the base, the extraction structure is arranged on the circulating pressurization structure, the circulating pressurization structure comprises a gas pressure swing adsorption tower, a gas pipe, a storage tank, a gas pipe one, a booster gas pump, an extension pipe one and an inflation pipe, the gas pressure swing adsorption tower is fixedly arranged on the base, the gas pipe is connected to a gas discharge port of the gas pressure swing adsorption tower, the storage tank is connected to the gas pipe, the gas pipe one is connected to a gas outlet of the gas pressure swing adsorption tower, the booster gas pump is connected to the gas pipe one, the extension pipe one is connected to an exhaust port of the booster gas pump, and the inflation pipe is connected to an exhaust port of the extension pipe one.
[0006] Preferably, the extraction structure comprises a gas pipe two, a gas suction pump, an extension pipe two and an air extraction pipe, the gas pipe two is connected to a gas inlet of the gas pressure swing adsorption tower, the gas suction pump is connected to the gas pipe two, the extension pipe two is connected to a gas inlet of the gas suction pump, and the air extraction pipe is connected to the extension pipe two.
[0007] In order to better realize the effect of gas separation, the gas pressure swing adsorption tower controls pressure change, so that methane is adsorbed at a lower pressure, and nitrogen components are released.
[0008] In order to reach the purpose of restoring pressure faster, the inflation pipe is inserted into the coal seam deeper than the depth of the air extraction pipe inserted into the coal seam.
[0009] Further, the air extraction pipe is distributed around the inflation pipe.
[0010] In order to achieve the effect of extraction, the air extraction pipe is arranged in multiple groups at intervals.
[0011] The beneficial effects achieved by the above structure are as follows: the high-efficiency coal mine gas extraction device provided by the scheme is used for adsorbing and separating gas through the gas pressure swing adsorption tower, and then other separated gas is re-injected into the coal seam through the inflation pipe on the extension pipe one by the booster air pump, so that the internal gas pressure is stable, thereby the gas suction pump can quickly extract the gas mixed with gas from the coal seam through the air extraction pipe on the extension pipe two. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a whole structure schematic view of the high-efficiency coal mine gas extraction device provided by the utility model;
[0013] Figure 2 It is another view structure schematic view of the high-efficiency coal mine gas extraction device provided by the utility model;
[0014] Figure 3 It is a cross-section structure schematic view of the high-efficiency coal mine gas extraction device provided by the utility model.
[0015] 1, base, 2, circulating booster structure, 3, extraction structure, 4, gas pressure swing adsorption tower, 5, gas pipe, 6, storage tank, 7, air pipe one, 8, booster air pump, 9, extension pipe one, 10, inflation pipe, 11, air pipe two, 12, gas suction pump, 13, extension pipe two, 14, air extraction pipe.
[0016] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation of the utility model. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0018] For example, Figure 1 , Figure 2 andFigure 3 As shown, this utility model proposes a high-efficiency coal mine gas extraction device, including a base 1, a circulating pressurization structure 2, and an extraction structure 3. The circulating pressurization structure 2 is mounted on the base 1, and the extraction structure 3 is mounted on the circulating pressurization structure 2. The circulating pressurization structure 2 includes a gas pressure swing adsorption tower 4, a gas pipe 5, a storage tank 6, a gas pipe 7, a booster pump 8, an extension pipe 9, and an air filling pipe 10. The gas pressure swing adsorption tower 4 is fixedly mounted on the base 1. Tower 4 controls pressure changes to allow methane to be adsorbed at a lower pressure while nitrogen is released. Gas pipe 5 is connected to the gas outlet of gas pressure swing adsorption tower 4. Storage tank 6 is connected to gas pipe 5. Gas pipe 7 is connected to the gas outlet of gas pressure swing adsorption tower 4. Inlet of booster pump 8 is connected to gas pipe 7. Extension pipe 9 is connected to the exhaust port of booster pump 8. Gas filling pipe 10 is connected to the exhaust port of extension pipe 9.
[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the extraction structure 3 includes a second gas pipe 11, a gas suction pump 12, an extension pipe 13, and an extraction pipe 14. The second gas pipe 11 is connected to the inlet of the gas pressure swing adsorption tower 4. The gas suction pump 12 is connected to the second gas pipe 11. The extension pipe 13 is connected to the inlet of the gas suction pump 12. The extraction pipe 14 is connected to the extension pipe 13. The extraction pipes 14 are distributed around the gas filling pipe 10. Multiple sets of extraction pipes 14 are arranged at intervals. The gas filling pipe 10 is inserted into the coal seam to a greater depth than the extraction pipe 14 is inserted into the coal seam.
[0020] In practical use, when using this device, the user inserts the extraction pipe 14 into the coal seam, and simultaneously arranges the inflation pipes 10 around the extraction pipe 14. Then, the inflation pipes 10 are inserted into the coal seam to a depth greater than that of the extraction pipe 14. Next, the extension pipe 13 of the gas suction pump 12 is connected to the extraction pipe 14, and the extension pipe 9 of the booster pump 8 is connected to the inflation pipe 10. At this time, the gas suction pump 12 is controlled to rapidly extract the gas mixture from the coal seam through the extraction pipe 14 on the extension pipe 13. The extracted gas mixture is then discharged into the gas pressure swing adsorption tower 4 through the gas pipe 11. At this time, the pressure change in the gas pressure swing adsorption tower 4 is controlled so that methane is adsorbed at a lower pressure, while nitrogen and other components are released, thereby extracting the gas. Then, the gas is discharged into the storage tank 6 through the gas pipe 5. At the same time, the booster pump 8 is controlled to extract the separated nitrogen and other gases through the gas pipe 7. Then, the nitrogen and other gases are discharged into the depth of the large coal seam through the gas filling pipe 10 on the extension pipe 9, thereby increasing the gas pressure at the bottom of the coal seam. This enables the gas extraction pump 12 to extract the gas quickly and dilute the gas concentration. The above is the entire process of using the efficient coal mine gas extraction device.
[0021] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0022] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.
[0023] The above description of the present application and its embodiments has been described, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the present application.
Claims
1. A high-efficiency coal mine gas extraction device, characterized in that: The invention relates to a coal mine gas extraction device, comprising a base, a circulating pressurization structure and an extraction structure, wherein the circulating pressurization structure is arranged on the base, the extraction structure is arranged on the circulating pressurization structure, the circulating pressurization structure comprises a gas pressure swing adsorption tower, a gas pipe, a storage tank, a gas pipe I, a pressurized gas pump, an extension pipe I and an air pipe, the gas pressure swing adsorption tower is fixedly arranged on the base, the gas pipe is connected to a gas outlet of the gas pressure swing adsorption tower, the storage tank is connected to the gas pipe, the gas pipe I is connected to a gas outlet of the gas pressure swing adsorption tower, the pressurized gas pump is connected to the gas pipe I, the extension pipe I is connected to an exhaust outlet of the pressurized gas pump, and the air pipe is connected to an exhaust outlet of the extension pipe I.
2. The efficient coal mine gas extraction device according to claim 1, characterized in that: The extraction structure comprises a gas pipe II, a gas extraction pump, an extension pipe II and an air extraction pipe, the gas pipe II is connected to a gas inlet of the gas pressure swing adsorption tower, the gas extraction pump is connected to the gas pipe II, the extension pipe II is connected to a gas inlet of the gas extraction pump, and the air extraction pipe is connected to the extension pipe II.
3. The efficient coal mine gas extraction device according to claim 2, characterized in that: The gas pressure swing adsorption tower is controlled to change pressure, so that methane is adsorbed at a lower pressure, and nitrogen components are released.
4. The efficient coal mine gas extraction device according to claim 3, characterized in that: The air pipe is inserted into the coal seam at a depth deeper than that of the air extraction pipe.
5. The efficient coal mine gas extraction device according to claim 4, characterized in that: The air extraction pipes are arranged around the air pipe.
6. The efficient coal mine gas extraction device according to claim 5, characterized in that: The air extraction pipes are arranged in multiple groups at intervals.