Mine coal seam gas drainage auxiliary device

Abstract

The present invention provides a mine coalbed methane drainage auxiliary device, which includes: a mounting assembly and a sealing assembly, the mounting assembly is composed of a base plate, and a dust removal assembly and a purification assembly are fixedly installed on the surface of the base plate, the sealing assembly is arranged on one side of the mounting assembly, the sealing assembly is interconnected with the dust removal assembly through a connecting mechanism, and a protection mechanism and a monitoring mechanism are respectively arranged on the top of the sealing assembly. The present application adopts a skid-mounted mounting assembly that can be assembled and transported according to the wellhead position, and the wellhead is sealed by the sealing assembly, and the sealing position is monitored by the monitoring mechanism, the protection mechanism is used to adjust the pressure in the well, and the automatic discharge of coalbed methane is realized, and the water vapor and impurities in the coalbed methane are preliminarily filtered by the dust removal assembly, and efficient removal is achieved by centrifugation, the coalbed methane can be purified and adsorbed by the purification assembly, and the two sides of the purification assembly are used to work in sequence to achieve the treatment of coalbed methane, thereby improving the drainage efficiency.

Description

Technical Field

[0001] The invention relates to a mine coal bed gas drainage auxiliary device, belonging to the technical field of coal bed gas drainage. Background Art

[0002] Coalbed methane drainage, which is the abbreviation of water drainage and gas production, is the process of using mechanical lifting equipment to lift the water in the wellbore to the ground, gradually reducing the bottom hole flow pressure, thereby forcing the coalbed methane adsorbed on the inner surface of the coal matrix pores to be desorbed and produced through a series of processes. As the bottom hole flow pressure decreases, a pressure drop funnel is gradually formed and gradually expands outward, thereby gradually reducing the reservoir pressure of the coal seam. In the process of pressure reduction, the coalbed methane is desorbed from the coal matrix pores, and then through the non-Darcy seepage and diffusion of the matrix pores to the natural fractures, and then seeps from the fractures into the wellbore, and is thus produced.

[0003] The drainage rate has an important impact on the production capacity of coalbed methane wells. If the drainage rate is too high, the liquid level will drop too quickly, shortening the drainage radius of potential coalbed methane wells, causing speed-sensitive effects, embedding proppant particles in coal seams, faster crack closure, and rapid reduction in permeability, which in turn causes low gas production in a single well or even makes it scrapped. Therefore, in the drainage and gas production of coalbed methane wells, the production flow is often controlled by starting with a small displacement and then a large displacement. By continuously observing and analyzing the discharged fluid, the production displacement is gradually increased, and finally a reasonable single well production displacement is found.

[0004] The drainage of coalbed methane from mines is a complex and important process. The coalbed methane extracted from the mine contains a lot of impurities, especially the coalbed methane precipitated from the mine has a high humidity. The coalbed methane after drainage is not easy to treat effectively, so there are more impurities in the coalbed methane and it is not easy to transport it later. During the drainage process, the layout of the drainage pipes and exhaust pipes is relatively complicated, and the location of the mine needs to be arranged according to the distribution situation. It is not easy to assemble and construct the drainage equipment, and leakage may occur in the mine without being detected in time. It is also easy to cause dangerous accidents due to changes in pressure during drainage, which greatly increases safety hazards. Summary of the invention

[0005] The present invention provides a mine coalbed methane drainage auxiliary device to solve the technical problems that the wellhead is difficult to seal and the coalbed methane pretreatment effect is poor during coalbed methane drainage.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a mine coal bed gas drainage auxiliary device, the mine coal bed gas drainage auxiliary device comprising:

[0008] An installation component, the installation component is composed of a bottom plate, a dust removal component and a purification component are fixedly installed on the surface of the bottom plate, the dust removal component and the purification component are connected to each other through a connecting mechanism, and the dust removal component is arranged on one side of the purification component, and a conveying mechanism is also fixedly installed on the surface of the bottom plate, and a storage mechanism installed on one side of the conveying mechanism is provided, and both the storage mechanism and the conveying mechanism are connected to the purification component;

[0009] A sealing component is arranged on one side of the installation component, the sealing component is communicated with the impurity removal component through a connecting mechanism, the sealing component is fixedly installed at the wellhead of the mine, and a protection mechanism and a monitoring mechanism are respectively provided on the top of the sealing component.

[0010] In the present technical solution, the connecting mechanism is composed of a delivery pump, which is fixedly installed on one side of the top of the base plate. The delivery pump is fixedly connected to the flange pipe and the connecting pipe respectively. The flange pipe is connected to the sealing assembly through the flange at its end, and the delivery pump is fixedly connected to one side of the top of the impurity removal assembly through the connecting pipe. The storage mechanism is fixedly installed on the other side of the base plate. The storage mechanism is composed of a storage tank, which is fixedly connected to the top of the base plate. The storage tank is connected to the purification assembly through two connecting pipes, and the two connecting pipes are fixedly connected to the regulating valve.

[0011] In the present technical solution, a conveying mechanism is provided on one side of the storage tank, and the conveying mechanism is composed of a pressure regulating pump. The pressure regulating pump and the storage tank are located on the same side of the purification component. The pressure regulating pump is fixedly connected to the surface of the bottom plate, and the pressure regulating pump is fixedly connected to a fixed pipe. The fixed pipe is fixedly connected to a branch pipe of a U-shaped structure, and both ends of the branch pipe are respectively connected to the interior of both sides of the purification component.

[0012] In the present technical solution, the sealing assembly is composed of a sealing plate, which is fixedly connected to the top of the casing by bolts, and the sealing plate is embedded in the inside of the casing. The casing has a double-layer structure and is installed inside the mine for the discharge of coalbed methane and water. A pressure pad is movably sleeved on the bottom of the sealing plate, and the pressure pad is embedded in the inside of the casing. An exhaust pipe is fixedly installed inside the sealing plate, the top of the exhaust pipe is fixedly connected to the protective mechanism, and the bottom end of the exhaust pipe extends to the inside of the casing.

[0013] In the present technical solution, the protection mechanism includes an end pipe, which is fixedly connected to the end of the exhaust pipe. A movable ring is provided inside the end pipe for sealing and sliding. The movable ring is connected to the inside of the top end of the end pipe through a spring, and an inclined surface is provided on the inner wall of the end pipe above the movable ring so that the inner diameter of the end pipe gradually increases. The top end of the exhaust pipe is fixedly connected to the flange pipe through a flange, and a monitoring mechanism is sleeved on the surface of the exhaust pipe.

[0014] In the present technical solution, the monitoring mechanism is composed of a cover, the cross-section of the cover is a U-shaped structure and is fitted and connected to the top surface of the sleeve, the cover is fixedly connected to the sleeve by screws, and a concentration monitor is fixedly connected to the top of the cover, the top of the cover is connected through a drain pipe of an L-shaped structure, the drain pipe is respectively inserted through the sealing plate, the pressure pad and the sleeve and extends to the inside of the sleeve, the drain pipe located above the sealing plate is fixedly connected to a fixed shaft, the bottom surface of the fixed shaft is fixedly connected to the sealing ring of the annular structure, and the sealing ring is fitted and connected to the surface of the sealing plate.

[0015] In the present technical solution, a circular hole for socketing with the exhaust pipe is opened on the top of the cover, and the circular hole is correspondingly arranged above the end pipe. A sealing gasket with an annular structure is fixedly connected to the edge of the top surface of the end pipe, and the sealing gasket is fitly connected to the cover. An overflow pipe is passed through the top of the end pipe, and the overflow pipe is located inside the circular hole. The overflow pipe is fixedly connected to the drainage pipe, and the drainage pipe is communicated with a collection device arranged externally for collecting overflowed coalbed methane.

[0016] In the present technical solution, the impurity removal component is composed of a separation tank, which is fixedly installed on one side of the top of the base plate, and the top side of the separation tank is fixedly connected to a connecting pipe, and the connecting pipe is communicated with the inner wall of the separation tank, and a ring-shaped enclosure is fixedly connected to the inside of the top of the separation tank, and a cylinder is fixedly installed on the top of the separation tank, and the cylinder is located on the outside of the enclosure and the telescopic end extends into the interior of the separation tank, and the telescopic end of the cylinder is fixedly connected to the chassis, and the chassis and the inner wall of the separation tank slide in contact, and a refrigeration unit is fixedly installed on the top surface of the base plate on one side of the separation tank, and the refrigeration unit is connected to the purification component through a circulation pipe.

[0017] In the present technical solution, the bottom of the separation tank is fixedly connected to a shell, the separation tank located above the shell is provided with an opening for collecting impurities, and the bottom of the separation tank between the openings is fixedly connected to a plug, the plug is interlocked and plugged with the middle part of the chassis, the bottom of the shell is fixedly connected to an inclined sewage pipe, the top of the separation tank is fixedly connected to an air outlet pipe, the air outlet pipe is a truncated cone-shaped hollow structure and extends to the bottom of the chassis, and the top of the air outlet pipe is connected to the two sides of the purification component through an air inlet pipe of a three-way structure.

[0018] In the present technical solution, the purification component includes a purification box, which is fixedly connected to the surface of the bottom plate, and has two symmetrically distributed vertical partitions fixedly connected inside the purification box, each of which is fixedly connected to the inner wall of the purification box through a transverse partition, and a condenser is fixedly installed inside the purification box between the vertical partitions, the condenser is connected to the circulation pipe, the condenser is fixedly connected to the condensation pipe, and the condensation pipe is located below the transverse partition, the top of the transverse partition and the side walls of the vertical partition are fixedly connected to the filter screen frame, the number of the filter screen frames is several and evenly distributed inside the purification box, and adjacent filter screen frames are filled with adsorbent.

[0019] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0020] The positive and progressive effects of the present invention are:

[0021] The above-mentioned mine coalbed methane drainage auxiliary device adopts installation components to realize the installation of mine coalbed methane drainage equipment, and adopts skid-mounted installation components to be assembled and transported according to the wellhead position, thereby improving the construction convenience, and the wellhead is sealed by a sealing component, and the sealing position is monitored by a monitoring mechanism to avoid leakage without timely detection of the problem, and the protection mechanism is used to adjust the pressure in the well, so that when the pressure is too high, the coalbed methane can be auxiliary discharged to avoid the occurrence of dangerous accidents caused by excessive pressure, and the drained coalbed methane is transported to the impurity removal component to preliminarily filter the water vapor and impurities in the coalbed methane, and use the centrifugal method to achieve efficient removal, and can quickly clean the impurities through the chassis without affecting the continuous drainage of coalbed methane, and can further purify and adsorb the coalbed methane through the purification component, and the two sides of the purification component work in sequence to achieve coalbed methane processing and improve drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the sealing component of the present invention.

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the impurity removal component of the present invention.

[0026] Figure 5 It is a schematic diagram of the side structure of the impurity removal component of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the purification component of the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the transverse partition of the present invention.

[0029] Figure 8 It is a schematic diagram of the external front view structure of the present invention.

[0030] Fig. 9 It is a schematic diagram of the external side structure of the present invention.

[0031] Fig.10It is a schematic diagram of the external top view structure of the present invention.

[0032] Description of Reference Numerals

[0033] 100, installation assembly; 101, base plate; 102, delivery pump; 103, flange pipe; 104, connecting pipe; 105, storage tank; 106, connecting pipe; 107, regulating valve; 108, pressure regulating pump; 109, fixed pipe; 110, branch pipe;

[0034] 200, sealing assembly; 201, sleeve; 202, sealing plate; 203, pressure pad; 204, exhaust pipe; 205, end pipe; 206, inclined plane; 207, movable ring; 208, spring; 209, cover; 210, concentration monitor; 211, drain pipe; 212, fixed shaft; 213, sealing ring; 214, overflow pipe; 215, drainage pipe; 216, sealing pad;

[0035] 300, impurity removal component; 301, separation tank; 302, enclosure; 303, cylinder; 304, chassis; 305, plug; 306, opening; 307, shell; 308, sewage pipe; 309, air outlet pipe; 310, air inlet pipe;

[0036] 400, purification component; 401, purification box; 402, vertical partition; 403, horizontal partition; 404, filter frame; 405, adsorbent; 406, condenser; 407, condenser tube; 408, refrigeration unit; 409, circulation tube. DETAILED DESCRIPTION

[0037] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0038] like Figure 1-10 As shown, the mine coalbed methane drainage auxiliary device includes:

[0039] The installation assembly 100 is composed of a bottom plate 101, on the surface of which a dust removal assembly 300 and a purification assembly 400 are fixedly mounted, the dust removal assembly 300 and the purification assembly 400 are connected to each other through a connecting mechanism, and the dust removal assembly 300 is arranged on one side of the purification assembly 400, and a conveying mechanism is also fixedly mounted on the surface of the bottom plate 101, and a storage mechanism installed on one side of the conveying mechanism is provided, and both the storage mechanism and the conveying mechanism are connected to the purification assembly 400;

[0040] The sealing component 200 is arranged on one side of the installation component 100. The sealing component 200 is interconnected with the impurity removal component 300 through a connecting mechanism. The sealing component 200 is fixedly installed at the wellhead of the mine, and a protection mechanism and a monitoring mechanism are respectively provided on the top of the sealing component 200.

[0041] The connecting mechanism is composed of a delivery pump 102, which is fixedly installed on one side of the top of the bottom plate 101. The delivery pump 102 is fixedly connected to the flange pipe 103 and the connecting pipe 104 respectively. The flange pipe 103 is connected to the sealing component 200 through the flange at its end, and the delivery pump 102 is fixedly connected to one side of the top of the impurity removal component 300 through the connecting pipe 104. The storage mechanism is fixedly installed on the other side of the bottom plate 101. The storage mechanism is composed of a storage tank 105, which is fixedly connected to the top of the bottom plate 101. The storage tank 105 It is connected to the purification component 400 through two connecting pipes 106, and the two connecting pipes 106 are fixedly connected to the regulating valve 107; a conveying mechanism is provided on one side of the storage tank 105, and the conveying mechanism is composed of a pressure regulating pump 108, the pressure regulating pump 108 and the storage tank 105 are located on the same side of the purification component 400, the pressure regulating pump 108 is fixedly connected to the surface of the bottom plate 101, the pressure regulating pump 108 is fixedly connected to the fixed pipe 109, the fixed pipe 109 is fixedly connected to the branch pipe 110 of the U-shaped structure, and the two ends of the branch pipe 110 are respectively connected to the inside of the two sides of the purification component 400.

[0042] In the present technical solution, the sealing assembly 200 is installed at the top of the wellhead, so that the coalbed methane in the well is transported to the connecting mechanism through the sealing assembly 200 after precipitation, and the delivery pump 102 is used to pump the coalbed methane into the impurity removal assembly 300, and the sealing assembly 200 and the impurity removal assembly 300 are connected through the flange pipe 103 and the connecting pipe 104, so that the coalbed methane is transported to the inside of the impurity removal assembly 300, and the coalbed methane is transported from the impurity removal assembly 300 to the purification assembly 400 after treatment, and the coalbed methane is transported to the purification assembly 400 through the branch pipe 103. The pipe 110 and the fixed pipe 109 transport the coalbed methane to the pressure regulating pump 108, and the pressure regulating pump 108 continues to pump the coalbed methane to realize the transportation of the coalbed methane. When the coalbed methane transportation pressure in the purification component 400 is too high, the regulating valve 107 is opened at this time to allow part of the coalbed methane to be transported to the storage tank 105 through the connecting pipe 106 for temporary storage. After the pressure is reduced, the coalbed methane in the storage tank 105 is discharged for temporary storage of the coalbed methane when the pressure changes, ensuring pressure balance to improve the safety performance of transportation.

[0043] The sealing assembly 200 is composed of a sealing plate 202, which is fixedly connected to the top of the casing 201 by bolts, and the sealing plate 202 is connected to the inside of the casing 201 in an embedded manner. The casing 201 is a double-layer structure and is installed inside the mine for the discharge of coalbed methane and water. A pressure pad 203 is movably sleeved at the bottom of the sealing plate 202, and the pressure pad 203 is embedded and sleeved with the inside of the casing 201. An exhaust pipe 204 is fixedly installed inside the sealing plate 202, and the top of the exhaust pipe 204 is fixedly connected to the protection mechanism, and the bottom end of the exhaust pipe 204 extends to the inside of the casing 201; The protection mechanism includes an end pipe 205, which is fixedly connected to the end of the exhaust pipe 204. A movable ring 207 is provided inside the end pipe 205 for sealing and sliding. The movable ring 207 is connected to the top of the end pipe 205 through a spring 208. An inclined surface 206 is provided on the inner wall of the end pipe 205 above the movable ring 207 so that the inner diameter of the end pipe 205 gradually increases. The top of the exhaust pipe 204 is fixedly connected to the flange pipe 103 through a flange, and a monitoring mechanism is sleeved on the surface of the exhaust pipe 204. The monitoring mechanism is composed of a cover 209, and the cover 209 is provided with a cover 209. 09 has a U-shaped cross-section and is fitted and connected to the top surface of the sleeve 201. The cover 209 is fixedly connected to the sleeve 201 by screws, and a concentration monitor 210 is fixedly connected to the top of the cover 209. The top of the cover 209 is connected to a drain pipe 211 of an L-shaped structure. The drain pipe 211 is respectively inserted and connected to the sealing plate 202, the pressure pad 203 and the sleeve 201 and extends to the inside of the sleeve 201. The drain pipe 211 located above the sealing plate 202 is fixedly connected to a fixed shaft 212. The bottom surface of the fixed shaft 212 is fixedly connected to a sealing ring 213 of an annular structure, and the sealing The ring 213 is fitted and connected to the surface of the sealing plate 202; a circular hole is opened on the top of the cover 209 for socketing with the exhaust pipe 204, and the circular hole is correspondingly arranged above the end pipe 205. A sealing gasket 216 of an annular structure is fixedly connected to the edge of the top surface of the end pipe 205, and the sealing gasket 216 is fitted and connected to the cover 209. An overflow pipe 214 is penetrated and connected to the top of the end pipe 205. The overflow pipe 214 is located inside the circular hole. The overflow pipe 214 is fixedly connected to the drainage pipe 215, and the drainage pipe 215 is communicated with an externally arranged collection device for collecting overflowed coalbed methane.

[0044] In the present technical solution, after the casing 201 is installed in the well, the sealing plate 202 is installed at the wellhead position, so that the pressure pad 203 squeezes the inner wall of the casing 201 to achieve the sealing of the connection, and at the same time, the exhaust pipe 204 is installed. After the operation is completed, the cover 209 is sleeved on the exhaust pipe 204, and then the flange pipe 103 is installed. The cover 209 drives the drainage pipe 211 to pass through and extend to the inside of the casing 201 for extracting the water source in the well. After the cover 209 is installed by screws, the inner edge of its top presses the sealing pad 216, thereby achieving the sealing of the connection of the cover 209. When a leak occurs, the coalbed methane inside the casing 201 overflows and enters The gas enters the cover 209, and the concentration is monitored by the concentration monitor 210, which is used to give a timely alarm when a leak occurs. When the gas enters the end pipe 205 from the exhaust pipe 204, the gas enters the flange pipe 103 from the middle of the movable ring 207. When the pressure increases, the movable ring 207 is squeezed and the spring 208 is forced to compress. When the movable ring 207 moves to the inclined surface 206, the gas transmission speed is accelerated, and the pressure is balanced to ensure the constant pressure of the transmission. At this time, the overflowed gas is transported to the collection device through the overflow pipe 214 and the drainage pipe 215, thereby ensuring the balance of the gas transmission pressure in the impurity removal component 300.

[0045] The impurity removal component 300 is composed of a separation tank 301, which is fixedly installed on one side of the top of the bottom plate 101, and the top side of the separation tank 301 is fixedly connected to the connecting pipe 104, and the connecting pipe 104 is communicated with the inner wall of the separation tank 301, and the top of the separation tank 301 is fixedly connected to a ring-shaped enclosure 302, and a cylinder 303 is fixedly installed on the top of the separation tank 301, and the cylinder 303 is located outside the enclosure 302 and the telescopic end extends into the separation tank 301, and the telescopic end of the cylinder 303 is fixedly connected to the chassis 304, and the chassis 304 slides against the inner wall of the separation tank 301, and a refrigeration unit 408 is fixedly installed on the top surface of the bottom plate 101 on one side of the separation tank 301, and The refrigeration unit 408 is connected to the purification component 400 through a circulation pipe 409; the bottom of the separation tank 301 is fixedly connected to a shell 307, the separation tank 301 located above the shell 307 is provided with an opening 306 for collecting impurities, and the bottom of the separation tank 301 between the openings 306 is fixedly connected to a plug 305, the plug 305 is engaged with the middle of the chassis 304, the bottom of the shell 307 is fixedly connected to an inclined sewage pipe 308, the top of the separation tank 301 is fixedly connected to an outlet pipe 309, the outlet pipe 309 is a truncated cone-shaped hollow structure and extends to the bottom of the chassis 304, and the top of the outlet pipe 309 is connected to the two sides of the purification component 400 through an air inlet pipe 310 of a three-way structure.

[0046] In the present technical solution, when the flange pipe 103 and the connecting pipe 104 convey the coalbed methane to the inside of the separation tank 301, the conveying pump 102 pressurizes the coalbed methane and quickly enters the separation tank 301, so that the formed vortex flows inside the enclosure 302, and the water vapor and impurities in the coalbed methane are separated by centrifugal force when flowing downward, and the coalbed methane enters through the outlet pipe 309 and enters the purification component 400 through the inlet pipe 310. At this time, the bottom plate 304 is separated from the plug 305, and the separated impurities are discharged from the middle of the bottom plate 304. The impurities fall down and are collected inside the separation tank 301. When the impurities inside the separation tank 301 are fully stored, the cylinder 303 is started to drive the chassis 304 to move downward, and the chassis 304 moves to the top of the plug 305 to achieve sealing. The impurities stay at the bottom of the chassis 304, and then the valve of the sewage pipe 308 is opened to discharge the impurities. When the treatment is completed, the valve on the sewage pipe 308 is closed, and then the chassis 304 is reset to achieve continuous online treatment. Moreover, when the impurities are large, the coalbed methane discharged with the impurities can be ignored.

[0047] The purification component 400 includes a purification box 401, which is fixedly connected to the surface of the bottom plate 101, and two symmetrically distributed vertical partitions 402 are fixedly connected inside the purification box 401, and each vertical partition 402 is fixedly connected to the inner wall of the purification box 401 through a transverse partition 403. A condenser 406 is fixedly installed inside the purification box 401 between the vertical partitions 402, and the condenser 406 is connected to the circulation pipe 409. The condenser 406 is fixedly connected to a condensation pipe 407, and the condensation pipe 407 is located below the transverse partition 403. The top of the transverse partition 403 and the side walls of the vertical partition 402 are fixedly connected to the filter screen frame 404. The number of filter screen frames 404 is several and evenly distributed in the purification box 401, and adsorbents 405 are filled between adjacent filter screen frames 404.

[0048] In the present technical solution, the coalbed methane transported to the inside of the purification box 401 enters between the horizontal partition 403 and the vertical partition 402, and the excess moisture and impurities in the coalbed methane are filtered through the adsorbent 405 between the filter mesh frames 404, and the medium is transported to the condenser 406 through the refrigeration unit 408, and the medium is transported to the bottom of the horizontal partition 403 through the condenser pipe 407. By lowering the temperature of the coalbed methane, the water vapor therein is condensed into liquid water and absorbed by the adsorbent 405, thereby improving the purification effect.

[0049] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A coal bed gas extraction auxiliary device for a mine, characterized in that: The mine coalbed methane drainage auxiliary device comprises: An installation component (100), the installation component (100) comprising a bottom plate (101), a dust removal component (300) and a purification component (400) being fixedly mounted on the surface of the bottom plate (101), the dust removal component (300) and the purification component (400) being connected to each other via a connecting mechanism, and the dust removal component (300) being arranged on one side of the purification component (400), a conveying mechanism being fixedly mounted on the surface of the bottom plate (101), a storage mechanism being arranged on one side of the conveying mechanism and being mounted on the bottom plate (101), and both the storage mechanism and the conveying mechanism being connected to the purification component (400); A sealing component (200), the sealing component (200) being arranged on one side of the installation component (100), the sealing component (200) being in communication with the impurity removal component (300) via a connection mechanism, the sealing component (200) being fixedly installed at a mine wellhead, and a protection mechanism and a monitoring mechanism being respectively arranged on the top of the sealing component (200); The protection mechanism comprises an end pipe (205), wherein the end pipe (205) is fixedly connected to the end of the exhaust pipe (204), and a movable ring (207) is provided inside the end pipe (205) for sealing and sliding. The movable ring (207) is connected to the inside of the top of the end pipe (205) via a spring (208), and an inclined surface (206) is provided on the inner wall of the end pipe (205) above the movable ring (207) so that the inner diameter of the end pipe (205) gradually increases. The top of the exhaust pipe (204) is fixedly connected to the flange pipe (103) via a flange, and a monitoring mechanism is sleeved on the surface of the exhaust pipe (204); the monitoring mechanism is composed of a cover (209), and the cross section of the cover (209) is a U-shaped structure and is connected to the top surface of the sleeve (201). The cover (209) is fixedly connected to the sleeve (201) by screws, and a concentration monitor (210) is fixedly connected to the top of the cover (209). The top of the cover (209) is connected to a drain pipe (211) of an L-shaped structure. The drain pipe (211) is respectively connected to the sealing plate (202), the pressure pad (203) and the sleeve (201) and extends to the inside of the sleeve (201). The drain pipe (211) located above the sealing plate (202) is fixedly connected to a fixed shaft (212). The bottom surface of the fixed shaft (212) is fixedly connected to a sealing ring (213) of an annular structure, and the sealing ring (213) is connected to the surface of the sealing plate (202). The top of the cover (209) is provided with a gasket for connecting with an exhaust pipe (211). The end tube (204) is provided with a circular hole which is connected with each other, and the circular hole is correspondingly arranged above the end tube (205). The top edge of the end tube (205) is fixedly connected with a sealing gasket (216) of an annular structure, and the sealing gasket (216) is closely connected with the cover (209). The top of the end tube (205) is connected with an overflow pipe (214), and the overflow pipe (214) is located inside the circular hole. The overflow pipe (214) is fixedly connected with the drainage pipe (215), and the drainage pipe (215) is connected with an externally arranged collection device for collecting overflowed coalbed methane. The impurity removal component (300) is composed of a separation tank (301), and the separation tank (301) is fixedly installed on the top side of the bottom plate (101). The top side of the separation tank (301) is connected with the connection The pipe (104) is fixedly connected, and the connecting pipe (104) is communicated with the inner wall of the separation tank (301); a ring-shaped enclosure (302) is fixedly connected to the top of the separation tank (301); a cylinder (303) is fixedly installed on the top of the separation tank (301); the cylinder (303) is located outside the enclosure (302) and the telescopic end extends into the separation tank (301); the telescopic end of the cylinder (303) is fixedly connected to the chassis (304), and the chassis (304) and the inner wall of the separation tank (301) are fitted and slidable; a refrigeration unit (408) is fixedly installed on the top surface of the bottom plate (101) on one side of the separation tank (301), and the refrigeration unit (408) is connected to the purification component (400) through a circulation pipe (409);The bottom of the separation tank (301) is fixedly connected to a shell (307), the separation tank (301) located above the shell (307) is provided with an opening (306) for collecting impurities, and the bottom of the separation tank (301) between the openings (306) is fixedly connected to a plug (305), the plug (305) is engaged and plugged with the middle of the chassis (304), the bottom of the shell (307) is fixedly connected to an inclined sewage pipe (308), the top of the separation tank (301) is fixedly connected to an air outlet pipe (309), the air outlet pipe (309) is a truncated cone-shaped hollow structure and extends to the bottom of the chassis (304), and the top of the air outlet pipe (309) is respectively connected to two sides of the purification component (400) through an air inlet pipe (310) of a three-way structure. ; 2. The mine coalbed methane drainage auxiliary device according to claim 1, characterized in that: The connection mechanism is composed of a delivery pump (102), the delivery pump (102) is fixedly mounted to one side of the top of the bottom plate (101), the delivery pump (102) is fixedly connected to a flange pipe (103) and a connecting pipe (104) respectively, the flange pipe (103) is connected to the sealing component (200) via a flange at its end, and the delivery pump (102) is fixedly connected to one side of the top of the impurity removal component (300) via the connecting pipe (104), the storage mechanism is fixedly mounted to the other side of the bottom plate (101), the storage mechanism is composed of a storage tank (105), the storage tank (105) is fixedly connected to the top of the bottom plate (101), the storage tank (105) is connected to the purification component (400) via two connecting pipes (106), and the two connecting pipes (106) are both fixedly connected to the regulating valve (107).

3. The mine coalbed methane drainage auxiliary device according to claim 2, characterized in that: A conveying mechanism is provided on one side of the storage tank (105), the conveying mechanism comprising a pressure regulating pump (108), the pressure regulating pump (108) and the storage tank (105) being located on the same side of the purification component (400), the pressure regulating pump (108) being fixedly connected to the surface of the bottom plate (101), the pressure regulating pump (108) being fixedly connected to a fixed pipe (109), the fixed pipe (109) being fixedly connected to a branch pipe (110) of a U-shaped structure, and the two ends of the branch pipe (110) being respectively connected to the inside of two sides of the purification component (400).

4. The mine coalbed methane drainage auxiliary device according to claim 1, characterized in that: The sealing assembly (200) is composed of a sealing plate (202), which is fixedly connected to the top of the casing (201) by bolts, and the sealing plate (202) is connected to the inside of the casing (201) in an embedded manner. The casing (201) is a double-layer structure and is installed inside the mine for the discharge of coalbed methane and water. A pressure pad (203) is movably sleeved at the bottom of the sealing plate (202), and the pressure pad (203) is sleeved in an embedded manner with the inside of the casing (201). An exhaust pipe (204) is fixedly installed inside the sealing plate (202), and the top of the exhaust pipe (204) is fixedly connected to the protection mechanism, and the bottom end of the exhaust pipe (204) extends to the inside of the casing (201).

5. The mine coalbed methane drainage auxiliary device according to claim 1, characterized in that: The purification assembly (400) comprises a purification box (401), wherein the purification box (401) is fixedly connected to the surface of the bottom plate (101), wherein two symmetrically distributed vertical partitions (402) are fixedly connected inside the purification box (401), wherein each vertical partition (402) is fixedly connected to the inner wall of the purification box (401) via a horizontal partition (403), and a condenser (406) is fixedly installed inside the purification box (401) between the vertical partitions (402), wherein the condenser ( The condenser (406) is connected to the circulation pipe (409), the condenser (406) is fixedly connected to the condensation pipe (407), and the condensation pipe (407) is located below the transverse partition (403), the top of the transverse partition (403) and the side wall of the vertical partition (402) are fixedly connected to the filter screen frame (404), the number of the filter screen frames (404) is several and they are evenly distributed inside the purification box (401), and the adsorbent (405) is filled between adjacent filter screen frames (404).

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