Waste gas collecting device for solid waste landfill
By designing a waste gas collection device for solid waste landfills, and utilizing exhaust fans and filtration mechanisms, the problem of waste gas pollution in solid waste landfills has been solved, achieving efficient waste gas collection and preventing channel blockage, thus protecting the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI ZHONGGANTOU SURVEY & DESIGN CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-01
AI Technical Summary
Solid waste landfills produce large amounts of harmful gases when left to accumulate for extended periods, polluting the air and damaging the surrounding land.
A waste gas collection device for solid waste landfills was designed, including a collection box, connecting pipe, air inlet column, installation mechanism and filtration mechanism. It uses a fan to create a negative pressure state, and through the cooperation of sealing block and spring, it realizes the collection and filtration of waste gas and prevents debris from clogging.
It effectively collects waste gas from landfills, prevents air pollution, avoids clogging of the collection box channels by debris, and improves the efficiency and effectiveness of waste gas collection.
Smart Images

Figure CN224180491U_ABST
Abstract
Description
A solid waste landfill exhaust gas collection device Technical Field
[0001] This utility model relates to the field of waste gas collection technology, specifically a waste gas collection device for solid waste landfills. Background Technology
[0002] A solid waste landfill exhaust gas collection device is a device used to collect exhaust gases generated at solid waste landfills.
[0003] Based on the above, the inventors have discovered that: Currently, there are many solid waste landfills on the market. However, ordinary solid waste landfills, which accumulate and bury large amounts of solid waste materials for a long time, generate a large amount of harmful gases that affect the surrounding air environment and cause great harm to the land around the landfill. Therefore, in view of this, the inventors have studied and improved the existing structure to provide a solid waste landfill exhaust gas collection device, in order to achieve a more practical purpose. Summary of the Invention
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] This utility model discloses a solid waste landfill exhaust gas collection device, including a collection box, a connecting pipe on the inner wall of the collection box, an air inlet column matched on the outer wall of the connecting pipe, an installation mechanism on one side of the air inlet column, and a filter mechanism on one side of the connecting pipe.
[0006] The installation mechanism includes:
[0007] A ring plate is fixed to the outer wall of the air intake column on one side. A sealing block slides on the inner wall of the air intake column. A slider is fixed on both sides of the sealing block. A sliding groove is opened on both sides of the inner wall of the air intake column. The inner walls of the two sliding grooves slide with the outer walls of the sliders. An exhaust fan is provided on one side of the sealing block. The outer wall of the exhaust fan is fixed to the inner wall of the connecting pipe.
[0008] As a preferred embodiment of this utility model, a sealing ring slides on the outer wall of the connecting pipe, and perforated plates are fixed on both sides of the sealing ring. Protrusions slide on the inner walls of the two perforated plates, and one side of each of the two protrusions is fixed to one side of the collection box.
[0009] As a preferred technical solution of this utility model, two square grooves are opened on one side of the ring plate, and square blocks slide on the inner walls of the two square grooves. One side of each of the two square blocks is fixed to one side of the sealing block.
[0010] As a preferred embodiment of this utility model, the inner walls of both sliders are slidably provided with connecting rods, the outer walls of both connecting rods are fixed to the inner wall of the slide groove, the outer walls of both connecting rods are fitted with springs, one end of each spring is fixed to one side of the slider, and the other end of each spring is fixed to the inner wall of the slide groove.
[0011] As a preferred embodiment of this utility model, the filtration mechanism includes:
[0012] A filter plate is disposed on one side of the connecting pipe. The outer wall of the filter plate matches the inner wall of the collection box. Two inserts are fixed on one side of the filter plate, and the outer walls of the two inserts match the inner wall of the connecting pipe.
[0013] As a preferred embodiment of this utility model, the filter plate has four studs on one side, and the outer walls of the four studs are threaded with the inner wall of the connecting pipe.
[0014] As a preferred embodiment of this utility model, the inner walls of both protrusions are fitted with transverse columns, and one end of each transverse column is matched with the inner wall of the sealing ring.
[0015] The beneficial effects of this utility model are:
[0016] 1. This solution involves fixing one end of an air intake column to the landfill's exhaust port. A blower is controlled to draw air from inside the intake column into the collection box, creating a negative pressure inside the intake column compared to the landfill. This causes the waste gas from the landfill to push a sealing block against the inner wall of the intake column, and a slider against the inner wall of the chute. Simultaneously, the slider compresses a spring on the outer wall of the connecting rod, causing it to contract and move. This allows the waste gas from the landfill to be injected into the collection box via a connecting pipe for storage. As the waste gas passes through a filter plate, particulate matter in the gas is blocked. After the waste gas is collected, the blower is turned off, causing the spring to reset and pull the sealing block against the ring plate. A square block fixed to one side of the sealing block slides against the inner wall of the square chute, effectively improving the device's ability to collect waste gas.
[0017] 2. In this solution, the filter plate is abutted against the connecting pipe on one side, and the outer wall of the fixed insert on one side of the filter plate is engaged with the inner wall of the connecting pipe. The outer wall of the stud is threaded with the inner wall of the filter plate until one end of the stud is threaded with the inner wall of the connecting pipe, thus securing the filter plate to one side of the connecting pipe. Then, the outer wall of the connecting pipe is engaged with the inner wall of the collection box, allowing the filter plate to block impurities in the exhaust gas by the negative pressure inside the connecting pipe, thus avoiding affecting the normal collection of exhaust gas by the collection box and preventing impurities from clogging the inner wall channel of the collection box. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 is a structural schematic diagram of a solid waste landfill exhaust gas collection device according to the present invention.
[0020] Figure 2 is a schematic diagram of the separation structure of the collection box and connecting pipe of a solid waste landfill exhaust gas collection device according to this utility model.
[0021] Figure 3 is an exploded view of the structure of the connecting pipe and the air inlet column of the solid waste landfill exhaust gas collection device of this utility model.
[0022] Figure 4 is an exploded view of the installation mechanism of a solid waste landfill exhaust gas collection device according to this utility model.
[0023] Figure 5 is an exploded view of the filtration mechanism of a solid waste landfill exhaust gas collection device according to this utility model.
[0024] In the diagram: 1. Collection box; 2. Connecting pipe; 3. Air intake column; 4. Installation mechanism; 41. Ring plate; 42. Sealing block; 43. Sliding block; 44. Slide groove; 45. Exhaust fan; 46. Square channel; 47. Square block; 48. Connecting rod; 49. Spring; 5. Filtering mechanism; 51. Filter plate; 52. Insert block; 53. Stud; 6. Sealing ring; 7. Perforated plate; 8. Protrusion; 9. Horizontal column. Detailed Implementation
[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0026] Example: As shown in Figures 1-5, the present invention provides a solid waste landfill exhaust gas collection device, including a collection box 1, a connecting pipe 2 on the inner wall of the collection box 1, an air inlet column 3 on the outer wall of the connecting pipe 2, an installation mechanism 4 on one side of the air inlet column 3, and a filter mechanism 5 on one side of the connecting pipe 2.
[0027] Installation mechanism 4 includes:
[0028] An annular plate 41 is fixed to the outer wall of the intake column 3 on one side. A sealing block 42 slides on the inner wall of the intake column 3. A slider 43 is fixed on both sides of the sealing block 42. A groove 44 is opened on both sides of the inner wall of the intake column 3. The inner walls of the two grooves 44 slide against the outer walls of the sliders 43. An exhaust fan 45 is provided on one side of the sealing block 42. The outer wall of the exhaust fan 45 is fixed to the inner wall of the connecting pipe 2. Two square grooves 46 are opened on one side of the annular plate 41. A block 47 slides on the inner wall of the two square grooves 46. One side of the two blocks 47 is fixed to one side of the sealing block 42. A connecting rod 48 slides on the inner wall of the two sliders 43. The outer walls of the two connecting rods 48 are fixed to the inner walls of the grooves 44. A spring 49 is sleeved on the outer wall of the two connecting rods 48. One end of the two springs 49 is fixed to one side of the slider 43, and the other end of the two springs 49 is fixed to the inner wall of the groove 44.
[0029] As shown in Figures 1 and 2, a sealing ring 6 slides on the outer wall of the connecting pipe 2. Perforated plates 7 are fixed on both sides of the sealing ring 6. Protrusions 8 slide on the inner walls of the two perforated plates 7. One side of each of the two protrusions 8 is fixed to one side of the collection box 1. A transverse column 9 is fitted on the inner wall of each of the two protrusions 8. One end of each transverse column 9 is matched with the inner wall of the sealing ring 6, which facilitates the reinforcement of the sealing performance between the connecting pipe 2 and the collection box 1.
[0030] As shown in Figures 2 and 5, the filter mechanism 5 includes:
[0031] The filter plate 51 is disposed on one side of the connecting pipe 2. The outer wall of the filter plate 51 matches the inner wall of the collection box 1. Two inserts 52 are fixed on one side of the filter plate 51. The outer walls of the two inserts 52 match the inner wall of the connecting pipe 2. Four studs 53 are threaded on one side of the filter plate 51. The outer walls of the four studs 53 are threaded with the inner wall of the connecting pipe 2. This allows the filter plate 51 to block the impurities in the waste gas absorbed by the negative pressure inside the connecting pipe 2, so as to avoid affecting the normal collection of waste gas by the collection box 1 and to prevent the impurities from clogging the inner wall channel of the collection box 1.
[0032] Working principle: In use, one side of the filter plate 51 is abutted against the connecting pipe 2, so that the outer wall of the fixed insert 52 on one side of the filter plate 51 engages with the inner wall of the connecting pipe 2. The outer wall of the stud 53 is threaded with the inner wall of the filter plate 51 until one end of the stud 53 is threaded with the inner wall of the connecting pipe 2, thus securing the filter plate 51 to one side of the connecting pipe 2. Then, the outer wall of the connecting pipe 2 is engaged with the inner wall of the collection box 1, so that the filter plate 51 blocks the negative pressure inside the connecting pipe 2 to absorb impurities in the exhaust gas, thus preventing it from affecting the normal collection of exhaust gas by the collection box 1 and preventing impurities from clogging the inner wall channel of the collection box 1. One end of the air inlet column 3 is fixedly installed between the exhaust port of the landfill, and the exhaust fan 45 is controlled to draw the air inside the air inlet column 3 into the collection box 1. The air intake column 3 is kept under negative pressure compared to the landfill, causing the waste gas inside the landfill to push the sealing block 42 to slide on the inner wall of the air intake column 3, and the slider 43 to slide on the inner wall of the chute 44. At the same time, the slider 43 compresses the spring 49 sleeved on the outer wall of the connecting rod 48 to contract and move, so that the waste gas inside the landfill can be injected into the collection box 1 through the connecting pipe 2 for storage. When passing through the filter plate 51, the particulate impurities in the waste gas are blocked. After the waste gas is collected, the exhaust fan 45 is turned off, and the spring 49 returns to its original position. The driving force pulls the sealing block 42 and the ring plate 41 to abut against each other. The square block 47 fixed on one side of the sealing block 42 slides on the inner wall of the square groove 46, thereby effectively improving the device's ability to collect waste gas and preventing the waste gas from the landfill from polluting the surrounding air.
[0033] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A solid waste landfill exhaust gas collection device, comprising a collection box (1), wherein the inner wall of the collection box (1) is provided with a connecting pipe (2), and the outer wall of the connecting pipe (2) is matched with an air inlet column (3), characterized in that, The air intake column (3) is provided with an installation mechanism (4) on one side, and the connecting pipe (2) is provided with a filter mechanism (5) on one side. The installation mechanism (4) includes: a ring plate (41), one side of which is fixed to the outer wall of the air intake column (3), a sealing block (42) sliding on the inner wall of the air intake column (3), a slider (43) fixed on both sides of the sealing block (42), a sliding groove (44) opened on both sides of the inner wall of the air intake column (3), the inner walls of the two sliding grooves (44) sliding with the outer wall of the slider (43), and an exhaust fan (45) provided on one side of the sealing block (42), the outer wall of the exhaust fan (45) being fixed to the inner wall of the connecting pipe (2).
2. The solid waste landfill exhaust gas collection device according to claim 1, characterized in that, A sealing ring (6) slides on the outer wall of the connecting pipe (2). A perforated plate (7) is fixed on both sides of the sealing ring (6). A protrusion (8) slides on the inner wall of both perforated plates (7). One side of each of the two protrusions (8) is fixed to one side of the collection box (1).
3. The solid waste landfill exhaust gas collection device according to claim 1, characterized in that, Two square grooves (46) are provided on one side of the ring plate (41), and square blocks (47) slide on the inner walls of the two square grooves (46). One side of each of the two square blocks (47) is fixed to one side of the sealing block (42).
4. The solid waste landfill exhaust gas collection device according to claim 1, characterized in that, The inner walls of both sliders (43) are slidably fitted with connecting rods (48), the outer walls of both connecting rods (48) are fixed to the inner wall of the slide groove (44), the outer walls of both connecting rods (48) are fitted with springs (49), one end of each spring (49) is fixed to one side of the slider (43), and the other end of each spring (49) is fixed to the inner wall of the slide groove (44).
5. The solid waste landfill exhaust gas collection device according to claim 1, characterized in that, The filtration mechanism (5) includes: a filter plate (51), which is disposed on one side of the connecting pipe (2). The outer wall of the filter plate (51) is matched with the inner wall of the collection box (1). Two inserts (52) are fixed on one side of the filter plate (51), and the outer walls of the two inserts (52) are matched with the inner wall of the connecting pipe (2).
6. A solid waste landfill exhaust gas collection device according to claim 5, characterized in that, The filter plate (51) has four studs (53) on one side, and the outer walls of the four studs (53) are threaded with the inner wall of the connecting pipe (2).
7. A solid waste landfill exhaust gas collection device according to claim 2, characterized in that, The inner walls of the two protrusions (8) are fitted with transverse posts (9), and one end of each transverse post (9) is matched with the inner wall of the sealing ring (6).