Landfill gas extraction post-treatment device for refuse landfill

Abstract

The landfill gas extraction post-treatment device comprises a filter box, a mounting plate is fixedly connected to the interior of the filter box, a filter screen is detachably connected to the interior of the mounting plate, and a fixing plate is fixedly connected to the side, close to the mounting plate, of the interior of the filter box. According to the landfill gas extraction post-treatment device for the refuse landfill, a servo motor drives a rotating plate to rotate back and forth through a second gear and an outer gear ring, the rotating plate extrudes a sliding rod through a first sliding groove, the sliding rod drives a movable frame to move back and forth, and a cleaning plate on the movable frame sweeps a filter screen, so that impurities adhering to the filter screen are cleaned; under the action of a rack, a first gear on a sliding rod rotates all the time, a sliding plate is driven to move back and forth through a connecting rod, the sliding plate drives a cleaning plate to move back and forth through a movable plate, the cleaning effect of the cleaning plate is improved, and meanwhile cleaned impurities are prevented from being attached to the cleaning plate.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental engineering, and more specifically, to a post-treatment device for landfill gas extracted from a landfill site. Background Art

[0002] The core of environmental engineering is the treatment of environmental pollution. The general method in garbage treatment is landfill. In existing landfill technologies, the recyclable parts, reusable parts, and organic garbage in municipal garbage are screened and separated. There are still some impurities in the extracted landfill gas. Therefore, the extracted landfill gas needs to be filtered before utilization.

[0003] At present, most of the post-treatment devices for landfill gas extracted from existing landfill sites use the filter screen in the filter box to filter the landfill gas. After a period of use, a lot of impurities in the landfill gas will adhere to the filter screen. If these adhered impurities are not cleaned in time, it will cause the filter screen to be blocked, thereby affecting the filtering effect of the filter screen. Therefore, we provide a post-treatment device for landfill gas extracted from a landfill site. Summary of the Invention

[0004] The purpose of the present invention is to provide a post-treatment device for landfill gas extracted from a landfill site to solve the problems raised in the above background art: At present, most of the post-treatment devices for landfill gas extracted from existing landfill sites use the filter screen in the filter box to filter the landfill gas. After a period of use, a lot of impurities in the landfill gas will adhere to the filter screen. If these adhered impurities are not cleaned in time, it will cause the filter screen to be blocked, thereby affecting the filtering effect of the filter screen.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions: A post-treatment device for landfill gas extracted from a landfill site, including a filter box. An installation plate is fixedly connected inside the filter box. A filter screen is detachably connected inside the installation plate. A fixed plate is fixedly connected to one side of the filter box close to the installation plate. A first groove is opened inside the fixed plate. A slider is slidably connected inside the first groove. A movable frame is fixedly connected to the outside of the slider. A second groove is opened inside the movable frame. A movable plate is slidably connected inside the second groove. A cleaning plate is fixedly connected to the outside of the movable plate. The cleaning plate is used in cooperation with the filter screen. A rotating plate is rotatably connected to the side of the filter box far from the installation plate. A first chute is opened inside the rotating plate. A sliding rod is slidably connected inside the first chute. The sliding rod is fixedly connected to the movable frame. A transmission mechanism is arranged between the movable frame and the rotating plate.

[0006] Preferably, the first groove is a regular hexagon structure, the outer side wall of the slider fits with the inner side wall of the first groove, there are six sliders in total, and the six sliders are symmetrically distributed.

[0007] Preferably, the transmission mechanism includes a first gear, the first gear is rotatably connected to the slide bar, a rack is fixedly connected inside the first chute, the first gear is meshed with the rack, a second chute is opened inside the movable frame, a slide plate is slidably connected inside the second chute, the slide plate is fixedly connected to the movable plate, a connecting rod is arranged between the first gear and the slide plate, one end of the connecting rod is rotatably connected to the first gear, and the other end of the connecting rod is rotatably connected to the slide plate.

[0008] Preferably, a servo motor is fixedly connected to the outside of the filter box, the output shaft of the servo motor vertically penetrates the filter box and extends to the inside of the filter box, the output shaft of the servo motor is rotatably connected to the filter box, a second gear is fixedly connected to the output end of the servo motor, an external gear ring is fixedly connected inside the rotating plate, and the external gear ring is meshed with the second gear.

[0009] Preferably, a first limiting groove is opened inside the rotating plate, a first limiting block is slidably connected inside the first limiting groove, the first limiting block is fixedly connected to the fixing plate, a limiting plate is fixedly connected to the side of the first limiting block away from the fixing plate, and both the first limiting groove and the first limiting block are arc-shaped structures.

[0010] Preferably, the outer side wall of the movable plate fits with the inner side wall of the second groove, a limiting rod is slidably connected inside the movable plate, the limiting rod is fixedly connected to the movable frame, a second limiting groove is opened on the side of the slide plate away from the movable plate, a second limiting block is slidably connected inside the second limiting groove, and the second limiting block is fixedly connected to the movable frame.

[0011] Preferably, an air inlet pipe is fixedly connected to one side of the filter box, a baffle is detachably connected to the other side of the filter box, and an air outlet pipe is fixedly connected inside the baffle.

[0012] Preferably, a sewage discharge pipe is fixedly connected to the bottom of the filter box, a sealing cover is sleeved outside the sewage discharge pipe, and the sealing cover is detachably connected to the sewage discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1) When the landfill gas extraction and treatment device of this landfill is in use, the landfill gas enters the filter box through the intake pipe, and the landfill gas is filtered by the filter net in the filter box. When it is necessary to clean the impurities adhering to the filter net, the servo motor is started. The servo motor drives the rotating plate to rotate back and forth through the second gear and the external gear ring. The rotating plate squeezes the sliding rod through the first sliding groove, and the sliding rod drives the movable frame to move back and forth. During this process, the cleaning plate on the movable frame will sweep across the filter net, thereby cleaning the impurities adhering to the filter net, ensuring the filtering effect of the filter net, preventing the filter net from being blocked. The impurities cleaned by the cleaning plate will fall into the sewage discharge pipe, and the impurities in the sewage discharge pipe can be discharged after removing the sealing cover.

[0014] 2) When the landfill gas extraction and treatment device of this landfill is in use, when the movable frame and the cleaning plate as a whole sweep across the filter net, under the action of the rack, the first gear on the sliding rod will keep rotating, and drive the sliding plate to move back and forth through the connecting rod. The sliding plate drives the cleaning plate to move back and forth through the movable plate, improving the cleaning effect of the cleaning plate and at the same time preventing the impurities cleaned from adhering to the cleaning plate.

[0015] 3) When the landfill gas extraction and treatment device of this landfill is in use, there are three groups of the first limiting grooves and the first limiting blocks symmetrically arranged. Since the rotating plate needs to rotate back and forth, the arc-shaped first limiting grooves and the first limiting blocks can ensure the stable rotation of the rotating plate while not hindering the rotation of the rotating plate. Brief Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the overall sectional schematic diagram of the present invention; Figure 3 is the structural schematic diagram of the rotating plate of the present invention; Figure 4 is the structural schematic diagram of the fixed plate of the present invention; Figure 5 is the structural schematic diagram of the first limiting groove of the present invention; Figure 6 is the structural schematic diagram of the movable frame of the present invention.

[0017] Description of reference numerals in the figure: 1. Filter box; 2. Mounting plate; 3. Filter screen; 4. Fixed plate; 5. First groove; 6. Slide block; 7. Movable frame; 8. Second groove; 9. Movable plate; 10. Cleaning plate; 11. Rotating plate; 12. First chute; 13. Slide bar; 14. Transmission mechanism; 15. First gear; 16. Rack; 17. Connecting rod; 18. Second chute; 19. Slide plate; 20. Servo motor; 21. Second gear; 22. External gear ring; 23. First limiting groove; 24. First limiting block; 25. Limiting plate; 26. Limiting rod; 27. Second limiting groove; 28. Second limiting block; 29. Air inlet pipe; 30. Baffle; 31. Air outlet pipe; 32. Sewage pipe; 33. Sealing cover. Detailed implementation manners

[0018] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 6 , a post-treatment device for landfill gas extracted from a landfill, comprising a filter box 1. A mounting plate 2 is fixedly connected inside the filter box 1. A filter screen 3 is detachably connected inside the mounting plate 2. A fixed plate 4 is fixedly connected to one side of the filter box 1 close to the mounting plate 2. A first groove 5 is opened inside the fixed plate 4. A slide block 6 is slidably connected inside the first groove 5. A movable frame 7 is fixedly connected to the outside of the slide block 6. A second groove 8 is opened inside the movable frame 7. A movable plate 9 is slidably connected inside the second groove 8. A cleaning plate 10 is fixedly connected to the outside of the movable plate 9. The impurities on the filter screen 3 are cleaned by the cleaning plate 10 to prevent the filter screen 3 from being blocked and ensure the filtering effect of the filter screen 3. The cleaning plate 10 is used in cooperation with the filter screen 3. A rotating plate 11 is rotatably connected to the side of the filter box 1 far from the mounting plate 2. A first chute 12 is opened inside the rotating plate 11. A slide bar 13 is slidably connected inside the first chute 12. The slide bar 13 is fixedly connected to the movable frame 7. A transmission mechanism 14 is arranged between the movable frame 7 and the rotating plate 11. Through the transmission mechanism 14, when the movable frame 7 drives the cleaning plate 10 to move as a whole, the cleaning plate 10 itself will also reciprocate back and forth, thereby improving the cleaning effect of the cleaning plate 10 on the impurities on the filter screen 3.

[0020] Furthermore, the first groove 5 is a regular hexagon structure. The outer sidewall of the slider 6 fits against the inner sidewall of the first groove 5. There are six sliders 6 in total, and the six sliders 6 are symmetrically distributed. The six sliders 6 in the first groove 5 are point-symmetrically distributed about the center of the fixed plate 4. When the rotating plate 11 rotates, under the action of the first sliding groove 12 and the sliding rod 13, the six sliders 6 will move simultaneously.

[0021] Furthermore, the transmission mechanism 14 includes a first gear 15. The first gear 15 is rotatably connected to the sliding rod 13. A rack 16 is fixedly connected inside the first sliding groove 12. The first gear 15 is meshed with the rack 16. A second sliding groove 18 is formed inside the movable frame 7. A sliding plate 19 is slidably connected inside the second sliding groove 18. The sliding plate 19 is fixedly connected to the movable plate 9. A connecting rod 17 is arranged between the first gear 15 and the sliding plate 19. One end of the connecting rod 17 is rotatably connected to the first gear 15, and the other end of the connecting rod 17 is rotatably connected to the sliding plate 19. When the rotating plate 11 rotates, it will squeeze the sliding rod 13 through the first sliding groove 12, thereby driving the overall movement of the movable frame 7. Relatively, the sliding rod 13 will slide inside the first sliding groove 12. Under the action of the rack 16, the first gear 15 on the sliding rod 13 will rotate. Since the connecting rod 17 and the first gear 15 are eccentrically arranged, when the first gear 15 rotates, it will drive the sliding plate 19 to move back and forth through the connecting rod 17. Finally, the sliding plate 19 will drive the cleaning plate 10 to move back and forth through the movable plate 9.

[0022] Furthermore, a servo motor 20 is fixedly connected to the outside of the filter box 1. The output shaft of the servo motor 20 vertically penetrates the filter box 1 and extends into the filter box 1. The output shaft of the servo motor 20 is rotatably connected to the filter box 1. The output end of the servo motor 20 is fixedly connected to a second gear 21. An external gear ring 22 is fixedly connected inside the rotating plate 11. The external gear ring 22 is meshed with the second gear 21. The servo motor 20 directly drives the second gear 21 to rotate, and the second gear 21 drives the rotating plate 11 to rotate through the external gear ring 22.

[0023] Furthermore, a first limiting groove 23 is formed inside the rotating plate 11. A first limiting block 24 is slidably connected inside the first limiting groove 23. The first limiting block 24 is fixedly connected to the fixed plate 4. A limiting plate 25 is fixedly connected to the outer side of the first limiting block 24 away from the fixed plate 4. Both the first limiting groove 23 and the first limiting block 24 are arc-shaped structures. There are three groups of the first limiting groove 23 and the first limiting block 24 symmetrically arranged. Since the rotating plate 11 needs to rotate back and forth, the arc-shaped first limiting groove 23 and first limiting block 24 can ensure the stable rotation of the rotating plate 11 while not hindering the rotation of the rotating plate 11.

[0024] Further, the outer wall of the movable plate 9 fits against the inner wall of the second groove 8. A limiting rod 26 is slidably connected inside the movable plate 9. The limiting rod 26 is fixedly connected to the movable frame 7. A second limiting groove 27 is formed on the side of the inner part of the sliding plate 19 away from the movable plate 9. A second limiting block 28 is slidably connected inside the second limiting groove 27. The second limiting block 28 is fixedly connected to the movable frame 7. The second limiting groove 27 and the second limiting block 28 are used to limit between the sliding plate 19 and the movable frame 7, so that the sliding plate 19 will not shake up and down. The limiting rod 26 is used to limit between the sliding plate 19 and the second sliding groove 18, so that the sliding plate 19 will not disengage from the second sliding groove 18.

[0025] Further, an air inlet pipe 29 is fixedly connected to one side of the filter box 1. A baffle 30 is detachably connected to the other side of the filter box 1. An air outlet pipe 31 is fixedly connected inside the baffle 30. The landfill gas enters the filter box 1 through the air inlet pipe 29, and the landfill gas is filtered by the filter net 3 inside the filter box 1, and finally discharged through the air outlet pipe 31.

[0026] Further, a sewage discharge pipe 32 is fixedly connected to the bottom of the filter box 1. A sealing cover 33 is sleeved outside the sewage discharge pipe 32. The sealing cover 33 is detachably connected to the sewage discharge pipe 32. The impurities cleaned by the cleaning plate 10 will fall into the sewage discharge pipe 32. After removing the sealing cover 33, the impurities in the sewage discharge pipe 32 can be discharged.

[0027] Usage steps of the present invention: When the landfill gas extraction and treatment device of this landfill is in use, the landfill gas enters the filter box 1 through the air inlet pipe 29, and the landfill gas is filtered by the filter net 3 inside the filter box 1. When it is necessary to clean the impurities adhered to the filter net 3, start the servo motor 20. The servo motor 20 drives the rotating plate 11 to rotate back and forth through the second gear 21 and the external gear ring 22. The rotating plate 11 squeezes the sliding rod 13 through the first sliding groove 12. The sliding rod 13 drives the movable frame 7 to move back and forth. During the process, the cleaning plate 10 on the movable frame 7 will sweep across the filter net 3, so as to clean the impurities adhered to the filter net 3, ensure the filtering effect of the filter net 3, prevent the filter net 3 from being blocked. At the same time, under the action of the rack 16, the first gear 15 on the sliding rod 13 will keep rotating, and drive the sliding plate 19 to move back and forth through the connecting rod 17. The sliding plate 19 drives the cleaning plate 10 to move back and forth through the movable plate 9, improving the cleaning effect of the cleaning plate 10 and at the same time preventing the impurities cleaned from adhering to the cleaning plate 10.

[0028] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A landfill gas extraction and post-processing device for a garbage landfill, comprising a filter box (1), a mounting plate (2) fixedly connected to the inside of the filter box (1), a filter screen (3) detachably connected to the inside of the mounting plate (2), characterized in that: A fixed plate (4) is fixedly connected to a side of the filter box (1) close to the mounting plate (2), a first groove (5) is provided inside the fixed plate (4), a slider (6) is slidably connected to the inside of the first groove (5), a movable frame (7) is fixedly connected to the outside of the slider (6), a second groove (8) is provided inside the movable frame (7), a movable plate (9) is slidably connected to the inside of the second groove (8), a cleaning plate (10) is fixedly connected to the outside of the movable plate (9), the cleaning plate (10) is used in conjunction with the filter screen (3), a rotating plate (11) is rotatably connected to a side of the filter box (1) away from the mounting plate (2), a first slide groove (12) is provided inside the rotating plate (11), a slide rod (13) is slidably connected to the inside of the first slide groove (12), the slide rod (13) is fixedly connected to the movable frame (7), and a transmission mechanism (14) is provided between the movable frame (7) and the rotating plate (11).

2. The landfill gas extraction and post-processing device of a garbage landfill according to claim 1, characterized in that: The first groove (5) is a regular hexagonal structure, the outer side wall of the slider (6) fits with the inner side wall of the first groove (5), there are six sliders (6) in total, and the six sliders (6) are symmetrically distributed.

3. The landfill gas extraction and post-processing device of a garbage landfill according to claim 1, characterized in that: The transmission mechanism (14) comprises a first gear (15), the first gear (15) is rotatably connected to the slide bar (13), a rack (16) is fixedly connected inside the first slide groove (12), the first gear (15) is meshingly connected to the rack (16), a second slide groove (18) is provided inside the movable frame (7), a slide plate (19) is slidably connected inside the second slide groove (18), the slide plate (19) is fixedly connected to the movable plate (9), a connecting rod (17) is provided between the first gear (15) and the slide plate (19), one end of the connecting rod (17) is rotatably connected to the first gear (15), and the other end of the connecting rod (17) is rotatably connected to the slide plate (19).

4. The landfill gas extraction and post-processing device of a garbage landfill according to claim 1, characterized in that: A servo motor (20) is fixedly connected to the outside of the filter box (1); an output shaft of the servo motor (20) vertically penetrates the filter box (1) and extends into the interior of the filter box (1); the output shaft of the servo motor (20) is rotatably connected to the filter box (1); a second gear (21) is fixedly connected to the output end of the servo motor (20); an outer gear ring (22) is fixedly connected to the interior of the rotating plate (11); and the outer gear ring (22) is meshingly connected to the second gear (21).

5. The landfill gas extraction and post-processing device of a garbage landfill according to claim 1, characterized in that: A first limiting groove (23) is provided inside the rotating plate (11), a first limiting block (24) is slidably connected inside the first limiting groove (23), the first limiting block (24) is fixedly connected to the fixed plate (4), a side of the outside of the first limiting block (24) away from the fixed plate (4) is fixedly connected to the limiting plate (25), and the first limiting groove (23) and the first limiting block (24) are both arc-shaped structures.

6. The landfill gas extraction and post-processing device of a garbage landfill according to claim 3, characterized in that: The outer wall of the movable plate (9) is fitted with the inner wall of the second groove (8); the movable plate (9) is internally slidably connected to a limit rod (26); the limit rod (26) is fixedly connected to the movable frame (7); a second limit groove (27) is provided on a side of the slide plate (19) away from the movable plate (9); a second limit block (28) is internally slidably connected to the second limit groove (27); and the second limit block (28) is fixedly connected to the movable frame (7).

7. The landfill gas extraction and post-processing device of a garbage landfill according to claim 1, characterized in that: An air inlet pipe (29) is fixedly connected to one side of the filter box (1), a baffle (30) is detachably connected to the other side of the filter box (1), and an air outlet pipe (31) is fixedly connected inside the baffle (30).

8. The landfill gas extraction and post-processing device of a garbage landfill according to claim 1, characterized in that: A sewage pipe (32) is fixedly connected to the bottom of the filter box (1), and a sealing cover (33) is sleeved on the outside of the sewage pipe (32). The sealing cover (33) is detachably connected to the sewage pipe (32).

Images