Ground extraction device for coal bed gas exploitation

Abstract

The utility model relates to the technical field of extraction devices, in particular to a ground extraction device for coal bed gas exploitation, which comprises a filter port, a pressure-resistant plate and a storage structure, a threaded port is welded at the lower end of a baffle in the filter port, a first insertion block is inserted into the threaded port, and the upper end of the first insertion block is connected with a filter screen through a bolt. The outer side of the threaded opening is rotationally connected with a hollow cover, one side of the arc-shaped pipeline in the filtering opening is connected with a second pipeline through a bolt, and the filtering net can be replaced by inserting the filtering net into the air inlet through the first inserting block and rotationally limiting the filtering net through the hollow cover; inserting blocks on the two sides are inserted into second inserting grooves, so that a second pipeline can be inserted into first pipeline inserting grooves, and a certain buffering effect can be achieved when a first base plate and a second base plate are pressed through a first compression-resistant structure and a second compression-resistant structure, so that the pipeline cannot be damaged; and dust can fall to the upper end of the conical funnel and fall into the storage groove through the semicircular filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction devices, in particular to a ground extraction device for coalbed methane extraction. Background Technique

[0002] Coalbed methane is a hydrocarbon gas stored in coal seams, with methane as the main component, mainly adsorbed on the surface of coal matrix particles, and partially free in coal pores or dissolved in coal seam water.

[0003] However, when the existing ground extraction device for coalbed methane extracts gas, due to the too long pipeline, it sometimes occupies the road for vehicle passage, resulting in the gas being crushed by vehicles during the extraction process, causing the air pump to be unable to pump gas, and if the vehicle presses on the pipeline for a long time, it will cause damage to the air pump.

[0004] Therefore, in order to solve the above problems, a ground extraction device for coalbed methane extraction is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a ground extraction device for coalbed methane extraction to solve the problems in the prior art mentioned in the above background technique, that is, when the existing ground extraction device for coalbed methane extracts gas, due to the too long pipeline, it sometimes occupies the road for vehicle passage, resulting in the gas being crushed by vehicles during the extraction process, causing the air pump to be unable to pump gas, and if the vehicle presses on the pipeline for a long time, it will cause damage to the air pump.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A ground extraction device for coalbed methane extraction, comprising: a filter port, a compression plate and a storage structure;

[0007] The lower end of the baffle in the filter port is welded with a threaded port. A first plug is inserted into the threaded port. The upper end of the first plug is bolted to the filter screen. The hollow cover is rotatably connected to the outside of the threaded port. One side of the arc-shaped pipe in the filter port is bolted to the second pipe. The two side plugs connected to the outside of the second pipe are inserted into the first slot in the pressure-resistant plate. A first pressure-resistant structure is movably connected inside the first chute in the pressure-resistant plate. The upper end of the first pressure-resistant structure is bolted to the first cushion plate. The second plug in the pressure-resistant plate is inserted into the third slot. The lower end of the third slot is bolted to the second plug rod. One side of the second pipe in the filter port is bolted to the first socket in the storage structure. The two sides of the first outer shell in the storage structure are hollowed out to form the first socket and the second socket. One side inside the first outer shell is bolted to the semi-circular filter screen. A conical funnel is inserted and connected inside the first outer shell with a third plug. The lower end of the first outer shell is bolted to the storage groove. One side of the first outer shell is bolted to the third pipe. One side of the third pipe is bolted to the extraction device. One side of the extraction device in the storage structure is bolted to the fourth pipe. One side of the fourth pipe is bolted to the storage barrel.

[0008] Preferably, the lower end of the first pipe in the filter port is bolted to the air inlet. The lower end of the air inlet is welded with a baffle. The lower end of the baffle is welded with a threaded port. The lower end of the first plug is bolted to the filter screen. The upper end of the first pipe is bolted to the arc-shaped pipe. One side of the arc-shaped pipe is bolted to the second pipe. Both sides of the second pipe are bolted with side plugs.

[0009] Preferably, the first pressure-resistant plate in the pressure-resistant plate is hollowed out to form the first slot inside. The inner side of the first pressure-resistant plate is hollowed out to form the first pipe slot. One side of the lower end of the first pressure-resistant plate is welded with a second plug. One side of the first pressure-resistant plate is hollowed out to form the first chute. A first pressure-resistant structure is movably connected inside the first chute. The upper end of the first pressure-resistant structure is bolted to the first cushion plate. The inner side of the first cushion plate is hollowed out to form the second chute. A first pressure-resistant structure is movably connected inside the second chute. The lower end of the first pressure-resistant plate is bolted to the first base. The lower end of the first base is bolted to the first plug rod.

[0010] Preferably, the second plug is inserted into the third slot. The inner side of the second pressure-resistant plate in the pressure-resistant plate is hollowed out to form the second slot and the third slot. The lower end of the second pressure-resistant plate is bolted to the second base. One side of the second pressure-resistant plate is hollowed out to form the third chute. A second pressure-resistant structure is movably connected inside the third chute. The upper end of the second pressure-resistant structure is bolted to the second cushion plate. The inner side of the second cushion plate is hollowed out to form the fourth chute.

[0011] Preferably, the lower end of the first outer shell is bolted to the upper end of the support column. The lower end of the support column is bolted to the third base. The semi-circular filter screen is bolted to the inner side of the second socket.

[0012] Preferably, a compression-resistant plate is inserted and connected to the outside of the third pipeline, a fourth pipeline is bolted to one side of the extraction device, and a pressure gauge is bolted to one side of the storage barrel.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model can insert the first plug block into the air inlet through the filter screen and use the hollow cover to rotate and limit the position, so that the filter screen can be replaced. The second pipeline can be inserted into the first pipeline slot by inserting the two side plug blocks into the second slot. Through the first compression-resistant structure and the second compression-resistant structure, when the first backing plate and the second backing plate are pressed, there is a certain buffering effect, so that the pipeline will not be damaged. Through the semi-circular filter screen, dust can fall onto the upper end of the conical funnel and fall into the storage groove.

[0014] 1. The present utility model is provided with a first pipeline, an air inlet, a baffle, a threaded port, a first plug block, a filter screen, a hollow cover, an arc-shaped pipeline, a second pipeline, two side plug blocks, a compression-resistant plate, a first pressure-resistant plate, a first slot, a first pipeline slot, a second plug block, a first chute, a first compression-resistant structure, a first backing plate, a second chute, a first base, a first insertion rod, a second pressure-resistant plate, a second slot, a third slot, a second base, a second insertion rod, a third chute, a second compression-resistant structure, a second backing plate and a fourth chute. The threaded port is welded to the lower end of the baffle for rotatably connecting the hollow cover. The filter screen is bolted to the lower end of the first plug block for filtering dust. The two side plug blocks are bolted to both sides of the second pipeline for inserting into the first slot. The second plug block is used for inserting into the third slot. The first compression-resistant structure is movably connected inside the first chute for having a certain buffering effect when the first compression-resistant structure is pressed. The inner side of the first backing plate is hollowed out to form the second chute for enabling the first compression-resistant structure to be movably connected inside the second chute. The second plug block is inserted and connected to the third slot for enabling the first pressure-resistant plate and the second pressure-resistant plate to be inserted and connected. The inner side of the second pressure-resistant plate is hollowed out to form the second slot for inserting the two side plug blocks. The second base is bolted to the lower end of the second pressure-resistant plate for connecting the second insertion rod. The second compression-resistant structure is movably connected inside the third chute for providing compression protection for the second backing plate and internally inserting and connecting the second pipeline and the third pipeline. The first insertion rod and the second insertion rod are used for inserting into the ground to limit the position of the pipeline.

[0015] 2. The utility model is provided with a first outer shell, a first socket, a second socket, a third plug, a conical funnel, a storage groove, a support column, a third base, a semi-circular filter screen, a third pipe, an extraction device, a fourth pipe, a storage barrel and a pressure gauge. The first socket and the second socket are used to connect the second pipe and the third pipe. The third plug is inserted to connect the conical funnel to limit the conical funnel. The storage groove is used to store dust. The support column is used to support the first outer shell. The semi-circular filter screen is used to filter dust. The extraction device is used to pump the gas inside the coal seam. The storage barrel is used to store coalbed methane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic side sectional view of the structure of the utility model;

[0017] Figure 2 It is a schematic front sectional view of the structure of the pressure-resistant plate of the utility model;

[0018] Figure 3 It is a sectional view of the structure of the pressure-resistant plate of the utility model;

[0019] Figure 4 It is a schematic front view of the structure of the hollow cover of the utility model;

[0020] Figure 5 It is a schematic top view of the structure of the second pipe of the utility model.

[0021] In the figure: 1, filter port; 101, first pipe; 102, air inlet; 103, baffle; 104, threaded port; 105, first plug; 106, filter screen; 107, hollow cover; 108, arc pipe; 109, second pipe; 110, side plugs; 2, pressure-resistant plate; 201, first pressure-resistant plate; 202, first slot; 203, first pipe slot; 204, second plug; 205, first chute; 206, first pressure-resistant structure; 207, first backing plate; 208, second chute; 209, first base; 210, first plug rod; 211, second pressure-resistant plate; 212, second slot; 213, third slot; 214, second base; 215, second plug rod; 216, third chute; 217, second pressure-resistant structure; 218, second backing plate; 219, fourth chute; 3, storage structure; 301, first outer shell; 302, first socket; 303, second socket; 304, third plug; 305, conical funnel; 306, storage groove; 307, support column; 308, third base; 309, semi-circular filter screen; 310, third pipe; 311, extraction device; 312, fourth pipe; 313, storage barrel; 314, pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , an embodiment provided by the present invention:

[0024] A ground extraction device for coalbed methane extraction, comprising: a filter port 1, a pressure-resistant plate 2, and a storage structure 3;

[0025] The lower end of the baffle 103 in the filter port 1 is welded with a threaded port 104. A first insert block 105 is inserted into the threaded port 104. The upper end of the first insert block 105 is bolted to a filter screen 106. The hollow cover 107 is rotatably connected to the outside of the threaded port 104. One side of the arc-shaped pipe 108 in the filter port 1 is bolted to a second pipe 109. The two insert blocks 110 connected to the outside of the second pipe 109 are inserted and connected to the first slot 202 in the pressure-resistant plate 2. The first pressure-resistant structure 206 is movably connected to the inside of the first chute 205 in the pressure-resistant plate 2. The upper end of the first pressure-resistant structure 206 is bolted to a first cushion plate 207. The second insert block 204 in the pressure-resistant plate 2 is inserted and connected to the third slot 213. The lower end of the third slot 213 is bolted to a second insertion rod 215. One side of the second pipe 109 in the filter port 1 is bolted to the first socket 302 in the storage structure 3. The two sides of the first outer shell 301 in the storage structure 3 are hollowed out to form the first socket 302 and the second socket 303. One side inside the first outer shell 301 is bolted to a semi-circular filter screen 309. The conical funnel 305 is inserted and connected to the inside of the first outer shell 301 with a third insert block 304. The lower end of the first outer shell 301 is bolted to a storage groove 306. One side of the first outer shell 301 is bolted to a third pipe 310. One side of the third pipe 310 is bolted to an extraction device 311. One side of the extraction device 311 in the storage structure 3 is bolted to a fourth pipe 312. One side of the fourth pipe 312 is bolted to a storage barrel 313.

[0026] Further, the lower end of the first pipe 101 in the filter port 1 is bolted to the air inlet 102. The lower end of the air inlet 102 is welded to the baffle 103. The lower end of the baffle 103 is welded to the threaded port 104. The lower end of the first plug 105 is bolted to the filter screen 106. The upper end of the first pipe 101 is bolted to the arc-shaped pipe 108. One side of the arc-shaped pipe 108 is bolted to the second pipe 109. Both sides of the second pipe 109 are bolted to the side plugs 110. The threaded port 104 welded to the lower end of the baffle 103 is used for rotatably connecting the hollow cover 107. The lower end of the first plug 105 bolted to the filter screen 106 is used for filtering dust. The side plugs 110 bolted to both sides of the second pipe 109 are used for inserting into the first slot 202.

[0027] Further, the first pressure-resistant plate 201 in the pressure-resistant plate 2 is hollow inside to form the first slot 202. The inner side of the first pressure-resistant plate 201 is hollow to form the first pipe slot 203. One side of the lower end of the first pressure-resistant plate 201 is welded to the second plug 204. One side of the first pressure-resistant plate 201 is hollow to form the first chute 205. The first pressure-resistant structure 206 is movably connected inside the first chute 205. The upper end of the first pressure-resistant structure 206 is bolted to the first cushion plate 207. The inner side of the first cushion plate 207 is hollow to form the second chute 208. The first pressure-resistant structure 206 is movably connected inside the second chute 208. The lower end of the first pressure-resistant plate 201 is bolted to the first base 209. The lower end of the first base 209 is bolted to the first plug rod 210. The second plug 204 is used for inserting into the third slot 213. The first pressure-resistant structure 206 movably connected inside the first chute 205 is used to provide a certain buffering effect when the first pressure-resistant structure 206 is pressed. The inner side of the first cushion plate 207 being hollow to form the second chute 208 is used to enable the first pressure-resistant structure 206 to be movably connected inside the second chute 208.

[0028] Further, the second insertion block 204 is inserted and connected to the third slot 213. The inner side of the second pressure-resistant plate 211 in the pressure-resistant plate 2 is hollowed out to form the second slot 212 and the third slot 213. The lower end of the second pressure-resistant plate 211 is bolted to the second base 214. One side of the second pressure-resistant plate 211 is hollowed out to form the third chute 216. The second pressure-resistant structure 217 is movably connected inside the third chute 216. The upper end of the second pressure-resistant structure 217 is bolted to the second cushion plate 218. The inner side of the second cushion plate 218 is hollowed out to form the fourth chute 219. The insertion connection of the second insertion block 204 to the third slot 213 is used to enable the insertion connection of the first pressure-resistant plate 201 and the second pressure-resistant plate 211. The inner side of the second pressure-resistant plate 211 being hollowed out to form the second slot 212 is used to insert the side insertion blocks 110. The lower end of the second pressure-resistant plate 211 being bolted to the second base 214 is used to connect the second insertion rod 215. The movable connection of the second pressure-resistant structure 217 inside the third chute 216 is used to provide pressure-resistant protection for the second cushion plate 218 for the second pipeline 109 and the third pipeline 310 inserted and connected inside. The first insertion rod 210 and the second insertion rod 215 are used to be inserted into the ground to limit the pipeline.

[0029] Further, the lower end of the first outer shell 301 is bolted to the upper end of the support column 307. The lower end of the support column 307 is bolted to the third base 308. The semi-circular filter screen 309 is bolted to the inner side of the second socket 303. The support column 307 is used to support the first outer shell 301. The semi-circular filter screen 309 is used to filter dust.

[0030] Further, the outer side of the third pipeline 310 is inserted and connected to the pressure-resistant plate 2. One side of the extraction device 311 is bolted to the fourth pipeline 312. One side of the storage barrel 313 is bolted to the pressure gauge 314. The extraction device 311 is used to extract the gas inside the coal seam. The storage barrel 313 is used to store coal seam gas.

[0031] Working principle: When in use, first insert the first insertion block 105 into the air inlet 102, cover the outside of the filter screen 106 at the upper end of the first insertion block 105 with the hollow cover 107, and limit the filter screen 106 within the threaded port 104. Then rotate the hollow cover 107 rotatably connected to the outside of the threaded port 104 so that the hollow cover 107 will not fall off easily. Start the extraction device 311 to extract the gas inside the coal seam. The coal seam gas is filtered through the filter screen 106 and then enters the first pipeline 101, and then enters the first housing 301 through the second pipeline 109. The coal seam gas is filtered through the semi-circular filter screen 309 and enters the third pipeline 310. The dust blocked by the semi-circular filter screen 309 will fall into the lower conical funnel 305 and then into the storage groove 306 through the conical funnel 305. The coal seam gas entering the third pipeline 310 will enter the fourth pipeline 312 through the extraction device 311 and then enter the storage barrel 313 through the fourth pipeline 312. When the air pressure inside the storage barrel 313 changes, it can be observed through the pressure gauge 314. That's all.

[0032] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description. However, any equivalent changes such as slight modifications, decorations, and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A ground extraction device for coalbed methane mining, comprising: A filter port (1), a pressure-resistant plate (2) and a storage structure (3); The invention is characterized in that: a threaded opening (104) is welded to the lower end of the baffle (103) in the filter port (1), a first plug-in block (105) is inserted into the threaded opening (104), the upper end of the first plug-in block (105) is connected to the filter screen (106) by bolts, the outer side of the threaded opening (104) is rotatably connected to the hollow cover (107), one side of the arc-shaped pipe (108) in the filter port (1) is connected to the second pipe (109) by bolts, the second pipe (109) is inserted into the first slot (202) in the pressure-resistant plate (2) by plug-in blocks (110) connected on both sides of the outer side, the first slide groove (205) in the pressure-resistant plate (2) is movably connected to the first pressure-resistant structure (206), the upper end of the first pressure-resistant structure (206) is connected to the first pad (207) by bolts, the second plug-in block (204) in the pressure-resistant plate (2) is inserted into the third slot (213), the lower end of the third slot (213) is connected to the third slot (213) by bolts. Two plug rods (215), one side of the second pipe (109) in the filter port (1) is connected to the first socket (302) in the storage structure (3) by bolts, the two sides of the first shell (301) in the storage structure (3) are hollow to form a first socket (302) and a second socket (303), one side of the interior of the first shell (301) is connected to a semicircular filter screen (309) by bolts, the interior of the first shell (301) is connected to a conical funnel (305) by a third plug block (304), the lower end of the first shell (301) is connected to a storage groove (306) by bolts, one side of the first shell (301) is connected to a third pipe (310) by bolts, one side of the third pipe (310) is connected to an extraction device (311) by bolts, one side of the extraction device (311) in the storage structure (3) is connected to a fourth pipe (312) by bolts, and one side of the fourth pipe (312) is connected to a storage bucket (313) by bolts.

2. A ground extraction device for coalbed methane mining according to claim 1, characterized in that: The lower end of the first pipe (101) in the filter port (1) is connected to the air inlet (102) by bolts, the lower end of the air inlet (102) is welded to a baffle (103), the lower end of the baffle (103) is welded to a threaded port (104), the lower end of the first plug block (105) is connected to a filter screen (106) by bolts, the upper end of the first pipe (101) is connected to an arc-shaped pipe (108) by bolts, one side of the arc-shaped pipe (108) is connected to a second pipe (109) by bolts, and both sides of the second pipe (109) are connected to plug blocks (110) on both sides by bolts.

3. A ground extraction device for coalbed methane mining according to claim 2, characterized in that: The first pressure-resistant plate (201) in the pressure-resistant plate (2) is hollow inside to form a first slot (202), the inside of the first pressure-resistant plate (201) is hollow inside to form a first pipe slot (203), a second plug block (204) is welded to one side of the lower end of the first pressure-resistant plate (201), one side of the first pressure-resistant plate (201) is hollow to form a first slide groove (205), the first slide groove (205) is internally movably connected to a first pressure-resistant structure (206), the upper end of the first pressure-resistant structure (206) is bolted to a first pad (207), the inside of the first pad (207) is hollow inside to form a second slide groove (208), the second slide groove (208) is internally movably connected to the first pressure-resistant structure (206), the lower end of the first pressure-resistant plate (201) is bolted to a first base (209), and the lower end of the first base (209) is bolted to a first insertion rod (210).

4. A ground extraction device for coalbed methane mining according to claim 3, characterized in that: The second plug block (204) is inserted into and connected to the third slot (213); the inner side of the second pressure-resistant plate (211) in the pressure-resistant plate (2) is hollowed out to form a second slot (212) and a third slot (213); the lower end of the second pressure-resistant plate (211) is connected to the second base (214) by bolts; one side of the second pressure-resistant plate (211) is hollowed out to form a third slide groove (216); the third slide groove (216) is movably connected to the second pressure-resistant structure (217); the upper end of the second pressure-resistant structure (217) is connected to the second pad (218) by bolts; the inner side of the second pad (218) is hollowed out to form a fourth slide groove (219).

5. A ground extraction device for coalbed methane mining according to claim 1, characterized in that: The lower end of the first housing (301) is connected to the upper end of the support (307) by bolts, the lower end of the support (307) is connected to the third base (308) by bolts, and the inner side of the second socket (303) is connected to the semicircular filter (309) by bolts.

6. A ground extraction device for coalbed methane mining according to claim 5, characterized in that: The outer side of the third pipe (310) is inserted into a pressure-resistant plate (2), one side of the third pipe (310) is connected to an extraction device (311) by bolts, one side of the extraction device (311) is connected to a fourth pipe (312) by bolts, and one side of the storage barrel (313) is connected to a pressure gauge (314) by bolts.

Images