Waste gas treatment device for refuse landfill

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for a refuse landfill. Comprising a mounting ring, an air injection pipe is provided with the mounting ring located above a connecting cylinder on the same side, arc-shaped plates are arranged on the two sides of the mounting ring in a sliding mode, the inner concave faces of the arc-shaped plates face a nozzle and are tightly attached to the nozzle so as to be suitable for scraping attached garbage, and elastic pieces are arranged between the two arc-shaped plates and the adjacent side edges of the mounting ring. Protruding rods used for scraping surrounding garbage are arranged on the two sides of the arc-shaped plates at intervals, and downward and inward-concave contact blocks are arranged on the opposite sides of the arc-shaped plates. According to the device, the gas injection pipes are arranged at intervals, so that the layout of the pipelines is more uniform and reasonable, garbage on the surfaces of the nozzles is scraped by the arc-shaped plates, and the arc-shaped plates are shaken by utilizing the matching of the contact blocks and the contact rods, so that the garbage in the gas injection space of the nozzles is removed, the nozzles are prevented from being blocked, and the smooth gas injection and the operation effect are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for a landfill. Background Art

[0002] A landfill is a place where solid waste is placed on a ground that has been treated by engineering, and then disposed of by mechanical compaction and covering with soil. Landfills are usually located on the edge of a city or far away to reduce the impact on residential areas. During this process, garbage will accumulate due to landfilling, causing the perishable substances in the landfill to ferment under anaerobic conditions to produce garbage odor. In addition, microorganisms in the garbage will use organic matter as nutrients and produce some gaseous metabolites or intermediates with odor, resulting in an increasingly serious odor problem. Therefore, in order to protect the environment, the treatment of odor in landfills is particularly important.

[0003] At present, the common methods of treating waste gas from garbage are high-energy ultraviolet beam deodorization and biological deodorization. These methods mainly change the form or material structure of odor pollutants through physical, chemical or biological effects to achieve the purpose of removing odor. However, the cost of these methods is relatively high. In order to respond to the demand for low cost and high efficiency, strong gas injection is now used to treat odor in garbage dumps to solve the problem of waste gas treatment. However, due to the relatively concentrated distribution of the existing pipeline layout, the waste gas treatment effect is not good. In addition, due to the accumulation of garbage, during the process of extracting gas, some garbage may block the pipeline, which will burden the operation of the garbage waste gas treatment equipment and cause unnecessary operational risks, thereby affecting the treatment efficiency. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a landfill waste gas treatment device with a reasonable pipeline layout and capable of avoiding pipeline blockage.

[0005] In order to solve the above technical problems, the present invention provides a landfill waste gas treatment device, including an outer shell, an assembly shell is arranged on the top of the outer shell, and an air circulation system combining air injection and air extraction operations is arranged on the top of the assembly shell, and a plurality of connecting pipes are connected at intervals at the bottom of the air circulation system, and the connecting pipes pass through the assembly shell and are rotatably connected to an air injection pipe located in the outer shell, and the upper end of the air injection pipe passes through the outer shell and is connected to a transmission component of a driving member installed in the assembly shell, so that the air injection pipe can be driven to rotate and operate through the driving member, and a plurality of groups of support rods are arranged on the inner top of the outer shell, and two support rods of the same group are respectively located on both sides of adjacent air injection pipes, and at least two connecting tubes are arranged between the two support rods, and the connecting tube is connected to the adjacent The air injection pipes are connected and rotatably matched, a plurality of nozzles are circumferentially arranged on the outer circumference of the connecting tube, and a toggle mechanism that fits with the nozzle is provided on the air injection pipe; the toggle mechanism includes a mounting ring, and a mounting ring located above the connecting tube on the same side is provided on the air injection pipe, and arc plates are slidably arranged on both sides of the mounting ring, and the concave surface of the arc plates faces the nozzles and fits tightly to be suitable for scraping off attached garbage, and elastic parts are respectively provided between the two arc plates and the adjacent sides of the mounting rings, and convex rods for scraping surrounding garbage are arranged at intervals on both sides of the arc plates, and downwardly concave contact blocks are provided on the opposite sides of the arc plates, and contact rods that contact and cooperate with the contact blocks are provided on the top of the upper nozzles to promote the sliding operation of the arc plates.

[0006] Preferably, the driving member includes an electric push rod, and electric push rods matching the number of gas injection tubes are installed at intervals on the top of the shell, a rack is connected to the telescopic end of the electric push rod, and a gear meshing with the corresponding rack is provided at the upper end of the gas injection tube.

[0007] Preferably, a spray mechanism is also included, which includes an infusion tube. Infusion tubes for connecting to the medicine solution are provided through both sides of the assembly shell. The bottom end of the infusion tube passes through the outer shell and is connected to a three-way tube. Both sides of the two three-way tubes are rotatably connected to the spray tubes for spraying the medicine solution.

[0008] Preferably, the spray mechanism also includes a connecting frame, connecting frames connected to the outer shell are arranged at intervals on the spray pipe, a plurality of connecting rings adjacent to the connecting frames are arranged at intervals on the spray pipe, a torsion spring is arranged between the connecting ring and the adjacent connecting frame, a plurality of guide blocks corresponding to the position of the air injection pipe are arranged at intervals on the spray pipe, an annular groove is opened on the guide block, and a three-rod ring that slides with the adjacent annular groove is arranged on the air injection pipe.

[0009] Preferably, it also includes a load-bearing pipe, which is arranged at the bottom of the gas injection pipe, and filter nets are arranged on both the front and rear sides of the load-bearing pipe, and three-claw plates are arranged on the left and right sides of the load-bearing pipe.

[0010] Preferably, a baffle is also included, and baffles are arranged on both sides of the shell in an inclined and rotatable manner.

[0011] Preferably, a concentration detector is also included. Both sides of the front of the gas circulation system are provided with a concentration detector, and the concentration detectors are respectively connected to adjacent connecting pipes.

[0012] Preferably, the upper side surface of the connecting tube is a downwardly inclined surface so as to guide the gas to be discharged from the nozzle.

[0013] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects:

[0014] 1. The present invention arranges the gas injection pipes at intervals to make the layout of the pipelines more uniform and reasonable, and uses the arc plate to scrape the garbage on the nozzle surface, and then uses the cooperation of the contact block and the contact rod to make the arc plate vibrate, thereby clearing the garbage in the nozzle injection space and avoiding nozzle blockage, thereby ensuring smooth gas injection and operation effect.

[0015] 2. The present invention promotes the spray pipe to rotate through the cooperation between the three-rod ring and the guide block, so that the liquid medicine can be sprayed in a swinging manner, thereby increasing the spraying area and effectively improving the spraying effect of the liquid medicine.

[0016] 3. The present invention stirs the leachate at the bottom of the garbage through the cooperation of the three-grip plate and the infiltration net, thereby accelerating the flow of the liquid, significantly improving the subsequent drainage efficiency, and can use the gripping force brought by the rotating three-grip plate to ensure the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of each mechanism of the present invention.

[0019] Figure 3 It is a three-dimensional structural cross-sectional view of components such as the gas injection pipe, connecting tube and nozzle of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of components such as the electric push rod, rack and gear of the present invention.

[0021] Figure 5 It is a three-dimensional structural cross-sectional view of the components of the toggle mechanism of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of some components of the spray mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of various components of the spray mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide block and the annular slide groove of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of components such as the load-bearing pipe, the infiltration screen and the three-claw plate of the present invention.

[0026] The marks in the accompanying drawings provided by the present invention are: 1-housing, 11-baffle, 2-assembly shell, 3-gas circulation system, 31-connecting pipe, 32-concentration detector, 4-gas injection pipe, 41-connecting cylinder, 42-nozzle, 43-support rod, 5-electric push rod, 51-rack, 52-gear, 6-sliding mechanism, 61-mounting ring, 62-arc plate, 621-elastic member, 63-convex rod, 64-contact rod, 65-contact block, 7-spraying mechanism, 71-infusion tube, 72-tee pipe, 73-spraying pipe, 74-connecting frame, 75-connecting ring, 76-torsion spring, 77-guide block, 771-annular slide groove, 78-three-rod ring, 8-load-bearing pipe, 81-filtration net, 82-three-claw plate. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Embodiment 1: A landfill waste gas treatment device, such as Figure 1-Figure 6As shown, it includes an outer shell 1, an assembly shell 2, an air circulation system 3, a connecting pipe 31, an air injection pipe 4, a connecting tube 41, a nozzle 42, a support rod 43, a driving member and a toggle mechanism 6. The outer shell 1 is provided with an assembly shell 2 on the top. The outer shell 1 and the assembly shell 2 are both rectangular hollow shells that can provide a protective support structure for the internal components. The top of the assembly shell 2 is provided with an air circulation system 3 that combines air injection and air extraction functions. The air circulation system 3 can provide the required air injection (providing fresh air and stabilizing the bacterial flora) and air extraction operations (extracting) for the treatment of waste gas. The bottom of the gas circulation system 3 is connected with four connecting pipes 31 at intervals. The connecting pipe 31 is the main connecting channel for the gas flow transportation of the gas circulation system 3. The connecting pipe 31 passes through the assembly shell 2 and is rotatably connected with the gas injection pipe 4 located in the shell 1. It is explained here that the gas injection pipe 4 and the connecting pipe 31 will not be separated during rotation; the gas injection pipe 4 is in a downwardly extending state, so as to be suitable for subsequent deep injection of gas flow into the garbage dump body. The upper end of the gas injection pipe 4 passes through the shell 1 and is connected to the transmission group of the driving member installed in the assembly shell 2. The parts are connected to each other, so that the injection pipe 4 can be driven to rotate and operate through the driving part. Four groups of support rods 43 are arranged on the inner top of the shell 1. Two support rods 43 of the same group are respectively located on the left and right sides of the adjacent injection pipe 4, and three connecting cylinders 41 are evenly spaced between the two support rods 43. The upper side of the connecting cylinder 41 is a downwardly inclined inclined surface, which can guide the flow of gas and assist the sliding of fallen garbage. The connecting cylinder 41 is connected with the adjacent injection pipe 4 and rotates in coordination. The connecting cylinder 41 itself does not rotate. As the injection pipe 4 rotates, it can The connection tube 41 is fitted to realize rotation, and the two will not be separated during the rotation and the gas flow is always maintained, so as to ensure that the injected airflow can flow to the garbage pile. Eight nozzles 42 are evenly arranged on the outer circumference of the connection tube 41 along the circumferential direction. The nozzles 42 can disperse and spray the airflow in the connection tube 41 so that the airflow can be evenly injected into the garbage pile. A toggle mechanism 6 that fits the nozzle 42 is arranged on the gas injection pipe 4. The main function of the toggle mechanism 6 is to scrape off the garbage attached to the nozzle 42 to avoid obstruction and blockage.The toggle mechanism 6 includes a mounting ring 61, an arc plate 62, an elastic member 621, a convex rod 63, a contact rod 64 and a contact block 65. The gas injection pipe 4 is provided with a mounting ring 61 located above the connecting tube 41 on the same side. The left and right sides of the mounting ring 61 are plates extending relatively to each other, and the plates on both sides of the mounting ring 61 are slidably provided with arc plates 62. The arc plates 62 are operated in an up and down sliding manner, and the arc-shaped inner concave surface of the arc plate 62 faces the nozzle 42 and fits tightly to be suitable for scraping attached garbage. Elastic members 621 are respectively provided between the two arc plates 62 and the adjacent side edges of the mounting ring 61. In the embodiment, the elastic member 621 is a spring, which is used to connect the arc plates 62 and can provide a resilient force for its sliding operation to reset, so that the arc plates 62 can realize up and down reciprocating operation. 2 are provided with convex rods 63 for scraping surrounding garbage at intervals on both the front and rear sides. The provision of the convex rods 63 can enhance the scraping ability of the arc plate 62 on the surrounding garbage, so that the garbage is scraped by the concave and convex surface formed by the convex rods 63, thereby scraping the garbage more effectively by increasing the force-bearing surface, and the two arc plates 62 of the same group are provided with downwardly concave contact blocks 65 on the opposite sides, and the bottom end of the contact block 65 presents an arc-shaped convex contact surface, and the top of the upper nozzle 42 is provided with a contact rod 64 that contacts and cooperates with the contact block 65, and the contact rod 64 is in an upwardly extending state, and the top end of the contact rod 64 is also an arc-shaped contact surface, thereby reducing the friction caused by the contact, so that the two can contact and cooperate coherently and smoothly when in contact, and promote the sliding operation of the arc plate 62. ;

[0030] like Figure 3 and Figure 4 As shown, the driving part includes an electric push rod 5, a rack 51 and a gear 52. The electric push rods 5 corresponding to the number of the gas injection tubes 4 are installed at intervals on the top of the shell 1. The telescopic end of the electric push rod 5 is connected with a rack 51, and the upper end of the gas injection tube 4 is provided with a gear 52 meshing with the corresponding rack 51, so as to realize the automatic rotation operation of the gas injection tube 4.

[0031] When the device is needed, first, holes of suitable diameters are drilled at intervals on the garbage pile according to the diameter of the gas injection pipe 4, and then the corresponding gas injection pipes 4 are inserted in sequence according to the order of the holes, so that the device is inserted to the bottom of the site, and it is ensured that the height of the garbage pile is lower than the lowest point of the spray pipe 73. In this process, as the gas injection pipe 4 is inserted, the components thereon will also be brought into the drilled hole, and the outer shell 1 will be inserted into the pile body to support the device as a whole. After the device is stably placed, the air circulation system 3 and the electric push rod 5 can be started. The electric push rod 5 is driven to drive the rack 51 connected thereto to move left and right, and then the rack 51 is engaged with the gear 52, driving the connected gas injection pipe 4 to rotate. At this time, the air circulation system 3 continuously injects fresh air from the connecting pipe 31 into the gas injection pipe 4, so that air and bacteria enter the garbage pile through the gas injection pipe 4, and are poured into the pile body by the connecting tube 41 and the nozzle 42, so that the gas is forced to The garbage pile is poured into to form a strong injection flow, so that the airflow is evenly diffused into the garbage pile, and under the action of bacteria and oxygen, the aerobic stabilization reaction inside the landfill is accelerated, so that the organic matter inside is fully degraded. At the same time, due to the continuous influx of airflow, some garbage may fall and affect the nozzle 42. Therefore, when the air injection pipe 4 rotates, the mounting ring 61 and the arc plate 62 will be driven to rotate accordingly. The arc plate 62 is used to fit the nozzle 42 to scrape off the attached materials on the surface, so that the air injection port of the nozzle 42 can remain unobstructed, and the rotation of the arc plate 62 will drive the convex rod 63 to scrape off the garbage in other places. At the same time, the contact block 65 will contact the contact rod 64 during the rotation process, thereby pushing the arc plate 62 to slide up and down, and the elastic member 621 will be deformed accordingly, so as to keep in contact and shake continuously, so as to scrape off the stubborn garbage that falls, so as to ensure that the nozzle 42 has enough space for gas circulation;

[0032] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 3 , Figure 6-Figure 8As shown, it also includes a spray mechanism 7, which includes an infusion tube 71, a three-way tube 72, a spray tube 73, a connecting frame 74, a connecting ring 75, a torsion spring 76, a guide block 77, an annular slide groove 771 and a three-rod ring 78. The left and right sides of the assembly shell 2 are penetrated with an infusion tube 71 for connecting the medicine liquid, the bottom end of the infusion tube 71 passes through the shell 1 and is connected with the three-way tube 72, and both sides of the two three-way tubes 72 are sealed and rotatably connected with the spray tube 73 for spraying the medicine liquid, ensuring the sealing performance while being able to realize the rotation operation, thereby forming a transportation channel from the infusion tubes 71 on both sides to the three-way tube 72, and the medicine flows to the spray tube 73, so that the medicine can be sprayed onto the garbage pile through the spray tube 73, and the spray tube 73 is intermittently provided with a connecting frame 74 connected to the shell 1, so that the spray tube 73 can also be connected to the connecting frame 74 when the connecting frame 74 is supported and load-bearing. The spray pipe 73 is provided with a plurality of connecting rings 75 adjacent to the connecting frame 74 at intervals, and a torsion spring 76 is provided between the connecting ring 75 and the adjacent connecting frame 74. The torsion spring 76 can assist the spray pipe 73 in resetting. The connecting frame 74 and the connecting ring 75 match each other, and the number of the connecting frames 74 varies according to the number of the gas injection pipes 4 to ensure the assembly balance of such a number; and the spray pipe 73 is also provided with guide blocks 77 corresponding to the position of the gas injection pipe 4 at intervals, and an annular groove 771 is provided on the guide block 77. The gas injection pipe 4 is provided with a three-rod ring 78 that slides with the adjacent annular groove 771, so that when the gas injection pipe 4 rotates, the three-rod ring 78 can slide with the annular groove 771 to push the spray pipe 73 in a swinging manner, so that the spray pipe 73 can realize automatic rotation operation between the three-way pipes 72 on both sides.

[0033] like Fig. 9 As shown, it also includes a load-bearing pipe 8, a percolation net 81 and a three-claw plate 82. The load-bearing pipe 8 is arranged at the bottom of the gas injection pipe 4, and the percolation net 81 is arranged on the front and rear sides of the load-bearing pipe 8. The three-claw plates 82 are arranged on the left and right sides of the load-bearing pipe 8, which can cooperate to stir the bottom leachate of the site, thereby accelerating the discharge speed, and the setting of the three-claw plate 82 can grab the bottom garbage during the rotation process, thereby increasing the stability of the device.

[0034] like Figure 1 As shown, a baffle 11 is also included. The baffles 11 are tiltably arranged on both the front and rear sides of the shell 1, which can shield both sides of the shell 1 to form a relatively closed space, so that the reaction place of the garbage is more concentrated.

[0035] like Figure 1 As shown, a concentration detector 32 is also included. Both sides of the front of the gas circulation system 3 are provided with concentration detectors 32. The concentration detectors 32 are respectively connected to the adjacent connecting pipes 31, so as to detect the concentration of the extracted treated exhaust gas.

[0036] During the strong gas injection process, liquid medicine can be sprayed to assist the operation. The type of liquid medicine is selected according to the usage. First, the infusion tube 71 is connected to the pump body, and then the infusion tube 71 is connected to the required liquid medicine. Then the liquid medicine flows to the infusion tube 71, and then flows to the spray pipe 73 through the three-way pipe 72. At this time, the gas injection tube 4 is in an operational rotating state, and the three-rod ring 78 connected thereto rotates synchronously, and as it rotates, its rod body will be embedded in the annular groove 771 of the guide block 77, and push the guide block 77 along the trajectory of the annular groove 771, thereby driving the spray pipe 73 connected to the guide block 77 to rotate, and then the torsion spring 76 is deformed, so that the spray pipe 73 is in a swinging spraying state, spraying the garbage below, thereby evenly dispersing the garbage. The liquid medicine is evenly spread on the garbage pile so that the liquid medicine can fully contact and react with the garbage. The reaction between the liquid medicine and the garbage will produce filtrate. At the same time, the garbage itself also contains some water, so it will accumulate at the bottom. When the gas injection pipe 4 rotates, the load-bearing pipe 8 rotates accordingly, and the infiltration net 81 and the three-claw plate 82 connected thereto will also operate synchronously. The infiltration liquid is stirred by rotation to accelerate the flow of liquid, and then discharged by the drainage system in the field. When the waste gas treatment is completed, the gas injection mode of the gas circulation system 3 is changed to the exhaust mode, so that the treated waste gas is extracted and discharged from bottom to top. At the same time, the concentration detector 32 will detect the concentration of the treated waste gas to ensure that it meets the treatment standards. Finally, the entire landfill waste gas treatment process is completed.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A landfill waste gas treatment device, comprising a shell (1), a mounting shell (2) is arranged on the top of the shell (1), a gas circulation system (3) combining gas injection and gas extraction functions is arranged on the top of the mounting shell (2), a plurality of connecting pipes (31) passing through the mounting shell (2) are connected at intervals at the bottom of the gas circulation system (3), the connecting pipe (31) is rotatably connected to a gas injection pipe (4) located in the shell (1), the upper end of the gas injection pipe (4) passes through the shell (1) and is connected to a transmission member of a driving member installed in the mounting shell (2), The driving member can drive the gas injection pipe (4) to rotate and operate, and a plurality of groups of support rods (43) are arranged on the housing (1), and two support rods (43) of the same group are respectively located on both sides of adjacent gas injection pipes (4), and at least two connecting tubes (41) are arranged between the two support rods (43), and the connecting tubes (41) are connected with the adjacent gas injection pipes (4) and rotate in cooperation, and a plurality of nozzles (42) are arranged on the outer periphery of the connecting tube (41) along the circumferential direction, and a toggle mechanism (6) for scraping off garbage is arranged on the gas injection pipe (4); the characteristics are as follows: The toggle mechanism (6) comprises a mounting ring (61). The gas injection pipe (4) is provided with a mounting ring (61) located above the connecting tube (41) on the same side. Both sides of the mounting ring (61) are slidably provided with arc plates (62). The inner concave surface of the arc plates (62) faces the nozzle (42) and fits tightly to scrape off attached garbage. Elastic members (621) are provided between the two arc plates (62) and the adjacent side edges of the mounting ring (61). Both sides of the arc plates (62) are spaced apart with convex rods (63) for scraping surrounding garbage. The opposite sides of the arc plates (62) are provided with downwardly concave contact blocks (65). The top of the upper nozzle (42) is provided with contact rods (64) that contact and cooperate with the contact blocks (65) to push the arc plates (62) to slide.

2. A landfill waste gas treatment device according to claim 1, characterized in that: The driving member comprises an electric push rod (5), the top of the housing (1) is provided with electric push rods (5) whose number matches the number of the gas injection pipes (4), the telescopic end of the electric push rod (5) is connected to a rack (51), and the upper end of the gas injection pipe (4) is provided with a gear (52) meshing with the corresponding rack (51).

3. A landfill waste gas treatment device according to claim 2, characterized in that: It also includes a spray mechanism (7), the spray mechanism (7) including an infusion tube (71), both sides of the assembly shell (2) are penetrated by an infusion tube (71) for connecting to the liquid medicine, the bottom end of the infusion tube (71) passes through the outer shell (1) and is connected to a three-way tube (72), and both sides of the three-way tubes (72) are rotatably connected to a spray tube (73) for spraying the liquid medicine.

4. A landfill waste gas treatment device according to claim 3, characterized in that: The spray mechanism (7) further comprises a connecting frame (74), the connecting frames (74) connected to the housing (1) are arranged at intervals on the spray pipe (73), a plurality of connecting rings (75) adjacent to the connecting frames (74) are arranged at intervals on the spray pipe (73), a torsion spring (76) is arranged between the connecting ring (75) and the adjacent connecting frame (74), a plurality of guide blocks (77) corresponding to the position of the air injection pipe (4) are arranged at intervals on the spray pipe (73), an annular groove (771) is provided on the guide block (77), and a three-rod ring (78) slidably matched with the adjacent annular groove (771) is arranged on the air injection pipe (4).

5. A landfill waste gas treatment device according to claim 4, characterized in that: It also comprises a load-bearing pipe (8), the bottom of the gas injection pipe (4) is provided with a load-bearing pipe (8), the front and rear sides of the load-bearing pipe (8) are provided with a percolation net (81), and the left and right sides of the load-bearing pipe (8) are provided with a three-claw plate (82).

6. A landfill waste gas treatment device according to claim 5, characterized in that: It also comprises a baffle (11), and baffles (11) are arranged on both sides of the housing (1) in an inclined and rotatable manner.

7. A landfill waste gas treatment device according to claim 6, characterized in that: It also includes a concentration detector (32). Both sides of the front of the gas circulation system (3) are provided with a concentration detector (32). The concentration detectors (32) are respectively connected to the adjacent connecting pipes (31).

8. A landfill waste gas treatment device according to claim 7, characterized in that: The upper side surface of the connecting tube (41) is a downwardly inclined surface so as to guide the gas to be discharged from the nozzle (42).

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