A waste gas purification and recovery device for waste power generation

By designing a flue gas recovery device with purification components, the flue gas purification function was achieved, solving the environmental pollution problem caused by direct emission of flue gas, improving environmental protection performance, and extending the service life of the device.

CN224573487UActive Publication Date: 2026-07-31JIANLI WANGNENG ENVIRONMENTAL PROTECTION ENERGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANLI WANGNENG ENVIRONMENTAL PROTECTION ENERGY CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing flue gas recovery devices directly discharge flue gas after use without purification, resulting in environmental pollution.

Method used

A waste gas purification and recovery device including purification components was designed. The device achieves flue gas purification function through the combination of a negative pressure pump, a recovery pipe, an air inlet pipe, and a connecting pipe. The device also uses detachable purification components for easy maintenance and replacement.

Benefits of technology

The system achieves purification while recovering flue gas, improving environmental performance. The detachable design of the purification components extends the service life of the device and solves the environmental pollution problem caused by direct emission of flue gas.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224573487U_ABST
    Figure CN224573487U_ABST
Patent Text Reader

Abstract

This utility model discloses a waste gas purification and recovery device for waste-to-energy generation, including a negative pressure pump, a recovery pipe, an inlet pipe, and a connecting pipe. The recovery pipe is connected to and communicates with the outlet end of the negative pressure pump. The inlet pipe is connected to and communicates with the inlet end of the negative pressure pump. The connecting pipe is coaxially arranged with the inlet pipe and located below the inlet pipe. The connecting pipe and the inlet pipe are connected by a mounting plate, which is fitted to the outer circumferential surface of both the connecting pipe and the inlet pipe. A gap is provided between the connecting pipe and the inlet pipe for installing a purification component. The purification component is detachably connected to the mounting plate, which is arc-shaped. This utility model achieves purification while recovering flue gas, improving environmental performance. Furthermore, the detachable design of the purification component facilitates maintenance and replacement, extending the service life of the device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of waste utilization technology, and in particular to a waste gas purification and recovery device for waste-to-energy generation. Background Technology

[0002] With rapid economic development, a large amount of garbage pollution and garbage disposal problems have emerged. Garbage is generally collected and recycled to garbage stations, where it is then processed in a unified manner. Garbage disposal usually involves incineration for power generation. During incineration, flue gas is generated. In order to save energy, the generated flue gas is often recovered, which requires the use of flue gas recovery devices.

[0003] Existing flue gas recovery devices often only recover the heat source of the flue gas and modify its formation through pipelines for utilization. However, after utilization, the flue gas is directly emitted, lacking a purification process. This can easily lead to the emission of toxic gases from the flue gas, causing environmental pollution. Utility Model Content

[0004] (a) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a waste gas purification and recovery device for waste-to-energy generation. This solution achieves purification function while recovering flue gas, improving environmental performance. Furthermore, the detachable design of the purification components facilitates maintenance and replacement, extending the service life of the device.

[0006] (II) Technical Solution

[0007] This utility model provides a waste gas purification and recovery device for waste-to-energy generation, including a negative pressure pump, a recovery pipe, an air inlet pipe, and a connecting pipe. The recovery pipe is connected to and communicates with the air outlet of the negative pressure pump. The air inlet pipe is connected to and communicates with the air inlet of the negative pressure pump. The connecting pipe is coaxially arranged with the air inlet pipe and located below the air inlet pipe. The connecting pipe and the air inlet pipe are connected by a mounting plate. The mounting plate is fitted to the outer circumferential surface of the connecting pipe and the air inlet pipe. There is a gap between the connecting pipe and the air inlet pipe for installing a purification component. The purification component is detachably connected to the mounting plate, and the mounting plate is arc-shaped.

[0008] Preferably, the purification component includes an installation tube, which is located between the connecting pipe and the air inlet pipe and is coaxially arranged with them respectively. The upper and lower ends of the installation tube are respectively connected to the air inlet pipe and the connecting pipe and are respectively attached to the air inlet pipe and the connecting pipe. The installation tube has a space for installing activated carbon and is installed therethrough by an installation unit. The installation tube can be moved to be attached to the installation plate.

[0009] Preferably, the installation unit includes a first limiting plate and a second limiting plate. The first limiting plate is located inside the installation tube and at one end of the installation tube near the connecting pipe. The first limiting plate is connected to the inner wall of the installation tube and has a plurality of first vent holes. The second limiting plate is located inside the installation tube and at one end of the installation tube near the air inlet pipe. The second limiting plate has a plurality of second vent holes. The second limiting plate is detachably connected to the inner wall of the installation tube. The second limiting plate, the first limiting plate, and the inner wall of the installation tube constitute a space for accommodating activated carbon.

[0010] Preferably, the outer circumferential surface of the second limiting plate is provided with an external thread, the inner wall of the end of the mounting tube facing the air inlet pipe is provided with an internal thread, the external thread and the internal thread are threaded together, and the upper end of the mounting tube is provided with a rotating handle.

[0011] Preferably, it also includes a limiting plate, which is arc-shaped and is fitted to the mounting plate and detachably connected to it via a mounting assembly. The limiting plate is fitted to the air intake pipe, the connecting pipe and the mounting pipe.

[0012] Preferably, the mounting assembly includes a nut, a screw is horizontally provided at one end of the mounting plate facing the limiting plate, a first through hole is provided on the limiting plate for the screw to pass through, a limiting block is provided at one end of the limiting plate away from the mounting plate, one end of the screw passes through the first through hole and is threaded with a nut, the limiting block is located between the nut and the mounting plate, and the nut is movable to abut against the limiting block.

[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0014] In this invention, the technical solution, by setting up a purification component, can adsorb and purify toxic gases in flue gas, solving the problem of environmental pollution caused by direct emission of flue gas in the prior art. Furthermore, the detachable design of the purification component facilitates maintenance and replacement, extending the service life of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a waste gas purification and recovery device for waste-to-energy generation proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the installation structure of the installation pipe in a waste gas purification and recovery device for waste-to-energy proposed in this utility model.

[0017] Figure 3This is a schematic diagram of the internal structure of the installation pipe in a waste gas purification and recovery device for waste-to-energy proposed in this utility model.

[0018] Reference numerals in the attached diagram: 1. Negative pressure pump; 2. Recovery pipe; 3. Air inlet pipe; 4. Mounting plate; 5. Connecting pipe; 6. Mounting pipe; 7. First limiting plate; 8. Second limiting plate; 9. Rotating handle; 10. Limiting plate; 11. Screw; 12. Nut; 13. Limiting block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-3As shown, the present invention proposes a waste gas purification and recovery device for waste-to-energy generation, comprising a negative pressure pump 1, a recovery pipe 2, an air inlet pipe 3, and a connecting pipe 5. The recovery pipe 2 is connected to and communicates with the outlet end of the negative pressure pump 1, the air inlet pipe 3 is connected to and communicates with the air inlet end of the negative pressure pump 1, the connecting pipe 5 is coaxially arranged with the air inlet pipe 3 and located below the air inlet pipe 3, the connecting pipe 5 and the air inlet pipe 3 are connected by a mounting plate 4, the mounting plate 4 is fitted to the outer circumferential surface of the connecting pipe 5 and the air inlet pipe 3, there is a gap between the connecting pipe 5 and the air inlet pipe 3 for the installation of the purification component, the purification component is detachably connected to the mounting plate 4, and the mounting plate 4 is arc-shaped.

[0023] In use, the negative pressure pump 1 is installed above the flue gas outlet, and the connecting pipe 5 is connected to the flue gas outlet end. The recovery pipe 2 is connected to the device for flue gas recovery. The negative pressure pump 1 generates negative pressure, thereby drawing the flue gas into the inlet pipe 3. The mounting plate 4 is arc-shaped, which can better fit the outer circumference of the connecting pipe 5 and the inlet pipe 3 to ensure the sealing of the connection. The purification component is detachably installed in the gap between the connecting pipe 5 and the inlet pipe 3 for easy maintenance and replacement. Thus, the flue gas returns through the connecting pipe 5 into the mounting pipe 6, passes through the purification component, and then passes through the inlet pipe 3 again through the negative pressure pump 1 into the recovery pipe 2.

[0024] This technical solution, by incorporating purification components, can adsorb and purify toxic gases in flue gas, solving the environmental pollution problem caused by direct flue gas emissions in existing technologies. Compared with existing technologies, this solution achieves purification while recovering flue gas, improving environmental performance. The detachable design of the purification components facilitates maintenance and replacement, extending the service life of the device. The arc-shaped design of mounting plate 4 enhances the sealing of the connection, preventing flue gas leakage.

[0025] Furthermore, this application also proposes that the purification component includes an installation tube 6, which is located between the connecting tube 5 and the air inlet tube 3 and is coaxially arranged with them respectively. The upper and lower ends of the installation tube 6 are respectively connected to the air inlet tube 3 and the connecting tube 5 and are respectively attached to the air inlet tube 3 and the connecting tube 5. The installation tube 6 has a space for installing activated carbon and is installed through an installation unit. The installation tube 6 can be moved to be attached to the installation plate 4.

[0026] Specifically, the mounting pipe 6 adopts a hollow cylindrical structure, and its inner diameter matches the interface size of the air inlet pipe 3 and the connecting pipe 5 to ensure an airtight connection.

[0027] Therefore, this technical solution, through the design of the movable installation tube 6, allows the installation tube 6 to be removed and replaced when the activated carbon needs to be replaced, thus eliminating the need for the installation unit to install the activated carbon and realizing the rapid replacement and maintenance of the activated carbon filter element. The coaxially arranged installation tube 6 maintains the continuity of the airflow channel while forming a stable activated carbon holding space through the double-layer limiting disc structure.

[0028] Furthermore, this application also proposes that the installation unit includes a first limiting plate 7 and a second limiting plate 8. The first limiting plate 7 is located inside the installation tube 6 and at one end of the installation tube 6 near the connecting pipe 5. The first limiting plate 7 is connected to the inner wall of the installation tube 6 and has a plurality of first vent holes. The second limiting plate 8 is located inside the installation tube 6 and at one end of the installation tube 6 near the air inlet pipe 3. The second limiting plate 8 has a plurality of second vent holes. The second limiting plate 8 is detachably connected to the inner wall of the installation tube 6. The second limiting plate 8, the first limiting plate 7, and the inner wall of the installation tube 6 constitute a space for accommodating activated carbon.

[0029] Therefore, this technical solution, by incorporating a detachable second limiting disc 8, makes the replacement and maintenance of activated carbon more convenient. The accommodating space formed by the first limiting disc 7 and the second limiting disc 8 effectively fixes the activated carbon and ensures uniform airflow.

[0030] Furthermore, this application also proposes that the outer peripheral surface of the second limiting plate 8 is provided with an external thread, the inner wall of the end of the mounting tube 6 facing the air intake pipe 3 is provided with an internal thread, the external thread and the internal thread are threaded together, and the upper end of the mounting tube 6 is provided with a rotating handle 9.

[0031] Therefore, this technical solution enables the rapid opening and closing of the activated carbon installation space through a threaded connection structure, solving the problem of inconvenient disassembly and assembly of traditional purification components.

[0032] Furthermore, this application also proposes a limiting plate 10, which is arc-shaped and is fitted to the mounting plate 4 and detachably connected to it through a mounting assembly. The limiting plate 10 is fitted to the air intake pipe 3, the connecting pipe 5 and the mounting pipe 6.

[0033] The limiting plate 10 adopts an arc-shaped design, which can better match the shape of the mounting plate 4, the air intake pipe 3, the connecting pipe 5 and the mounting pipe 6, ensuring a tight fit and enabling the positioning of the mounting pipe 6.

[0034] Therefore, the technical solution of this application effectively solves the problem of loosening or displacement that may occur in the installation pipe 6 during operation by adding a limiting plate 10, thereby improving the stability of the purification component.

[0035] Furthermore, this application also proposes that the mounting assembly includes a nut 12, a screw 11 is horizontally provided at one end of the mounting plate 4 facing the limiting plate 10, the limiting plate 10 is provided with a first through hole for the screw 11 to pass through, the limiting plate 10 is provided with a limiting block 13 at one end away from the mounting plate 4, one end of the screw 11 passes through the first through hole and is threaded with the nut 12, the limiting block 13 is located between the nut 12 and the mounting plate 4, and the nut 12 can be moved to abut against the limiting block 13.

[0036] Specifically, the mounting assembly achieves a detachable connection between the limiting plate 10 and the mounting plate 4 through the threaded engagement of the screw 11 and the nut 12. The screw 11 is horizontally fixed on the mounting plate 4, and the limiting block 13 is located on the side of the limiting plate 10 away from the mounting plate 4. After the screw 11 is passed through the first through hole, the nut 12 is rotated onto the screw 11. By rotating the screw 11 to make it abut against the limiting block 13, the limiting block 13 and the limiting plate 10 can be pushed towards the mounting plate 4, thereby making them fit tightly together. Furthermore, the limiting block 13 allows the nut 12 to better push the limiting plate 10.

[0037] Therefore, this technical solution enables the quick assembly and disassembly of the limiting plate 10 through a threaded fastening structure. Compared with the existing technology, this design solves the problem of inconvenient disassembly during the maintenance of the purification components, reduces the assembly complexity through a standardized threaded connection method, and ensures the reliability of the connection through the limiting structure.

[0038] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A waste gas purification and recovery device for waste-to-energy generation, characterized in that, The device includes a negative pressure pump, a recovery pipe, an air inlet pipe, and a connecting pipe. The recovery pipe is connected to and communicates with the air outlet of the negative pressure pump. The air inlet pipe is connected to and communicates with the air inlet of the negative pressure pump. The connecting pipe is coaxially arranged with the air inlet pipe and located below the air inlet pipe. The connecting pipe and the air inlet pipe are connected by a mounting plate. The mounting plate is fitted to the outer circumferential surface of the connecting pipe and the air inlet pipe. There is a gap between the connecting pipe and the air inlet pipe for installing the purification component. The purification component is detachably connected to the mounting plate, and the mounting plate is arc-shaped.

2. The waste gas purification and recovery device for waste-to-energy generation according to claim 1, characterized in that, The purification component includes an installation tube, which is located between the connecting pipe and the air inlet pipe and is coaxially arranged with them respectively. The upper and lower ends of the installation tube are respectively connected to the air inlet pipe and the connecting pipe and are respectively attached to the air inlet pipe and the connecting pipe. The installation tube has a space for installing activated carbon and is installed therethrough by an installation unit. The installation tube can be moved to be attached to the installation plate.

3. The exhaust gas purification and recovery device for waste incineration for power generation according to claim 2, characterized by The installation unit includes a first limiting plate and a second limiting plate. The first limiting plate is located inside the installation tube and at one end of the installation tube near the connecting pipe. The first limiting plate is connected to the inner wall of the installation tube and has multiple first vent holes. The second limiting plate is located inside the installation tube and at one end of the installation tube near the air inlet pipe. The second limiting plate has multiple second vent holes. The second limiting plate is detachably connected to the inner wall of the installation tube. The second limiting plate, the first limiting plate, and the inner wall of the installation tube constitute a space for accommodating activated carbon.

4. The waste gas purification and recovery device for waste-to-energy generation according to claim 3, characterized in that, The second limiting plate has an external thread on its outer circumferential surface, and the mounting tube has an internal thread on the inner wall of the end facing the air inlet pipe. The external thread and the internal thread are threaded together, and the upper end of the mounting tube has a rotating handle.

5. The waste gas purification and recovery device for waste-to-energy generation according to claim 4, characterized in that, It also includes a limiting plate, which is arc-shaped and is fitted to the mounting plate and detachably connected to it through a mounting assembly. The limiting plate is fitted to the air intake pipe, the connecting pipe and the mounting pipe.

6. The exhaust gas cleaning and recycling device for waste power generation according to claim 5, characterized by The mounting assembly includes a nut, a screw is horizontally provided at one end of the mounting plate facing the limiting plate, a first through hole is provided on the limiting plate for the screw to pass through, a limiting block is provided at one end of the limiting plate away from the mounting plate, one end of the screw passes through the first through hole and is threaded with a nut, the limiting block is located between the nut and the mounting plate, and the nut is movable to abut against the limiting block.