Energy-saving and emission-reducing waste heat flue gas recovery device

By designing a fan-driven transmission belt inside the filter box to rotate the filter belt, and scraping off impurities and collecting them into the waste bin, the problem of incomplete treatment of water vapor and particulate matter in flue gas in existing devices is solved, achieving effective waste heat flue gas recovery and environmental protection and energy saving effects.

CN223788237UActive Publication Date: 2026-01-13SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
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Patent Information

Application Number
CN202520273129.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-13
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing waste heat flue gas recovery devices fail to effectively treat water vapor and particulate matter entrained in the flue gas during the heat recovery process, resulting in exhaust emissions that do not meet standards.

Method used

A device comprising a filter box, a fan, a filter belt, a scraper, and a waste bin is designed. The fan drives the transmission belt to rotate, the scraper scrapes off impurities and collects the waste into the waste bin, and the baffle prevents impurities from being blown out, thereby achieving effective filtration of flue gas and timely removal of impurities.

Benefits of technology

It achieves effective filtration of flue gas and timely removal of impurities, ensuring normal gas flow, preventing the problem of non-compliance with emission standards, and improving the environmental protection and energy-saving effect of the waste heat flue gas recovery device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an energy-saving emission-reducing waste heat flue gas recovery device which comprises a filter box, a mounting plate is fixedly connected to the inner side of the filter box, a fan is rotationally connected to one side of the mounting plate, a driven roller and a power roller are rotationally connected to the upper side and the lower side of the interior of the filter box, and a filter belt is arranged on the outer side of the driven roller and the outer side of the power roller in a sleeved mode. A control box is fixedly connected to the lower side of the front portion of the filtering box, a first bevel gear is rotatably connected to the interior of the control box, the tail of the first bevel gear is fixedly connected with the power roller, a second bevel gear is connected to one side of the first bevel gear in a meshed mode, and the tail of the second bevel gear is sleeved with a transmission belt; the other side of the transmission belt penetrates through the filter box and is arranged on the rear portion of the fan in a sleeving mode, the lower portion of the inner side of the filter box is fixedly connected with a scraper, the lower portion of the filter box is fixedly connected with a waste box right facing the scraper, air obtained after waste gas heat exchange can be filtered, a filter screen can be cleaned in time, and normal circulation of gas is prevented from being affected.
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Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to an energy-saving and emission-reducing waste heat flue gas recovery device. Background Technology

[0002] The heat exchanger for waste heat recovery is a key piece of equipment in a waste heat recovery system. It transfers the thermal energy in the waste heat to the medium that needs to be heated through a heat exchange process, thereby realizing the conversion and utilization of energy.

[0003] Existing environmentally friendly, energy-saving, and emission-reducing waste heat and flue gas recovery devices have simple structures and single functions. During the process of recovering heat from flue gas, the water vapor in the flue gas will condense into water, and the flue gas contains a large number of particulate matter. The flue gas heat recovery device lacks an air treatment structure, resulting in the exhaust gas emissions not meeting the standards. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving and emission-reducing waste heat flue gas recovery device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving and emission-reducing waste heat flue gas recovery device, comprising a filter box, an installation plate fixedly connected to the inner side of the filter box, a fan rotatably connected to one side of the installation plate, a driven roller and a power roller rotatably connected to the upper and lower sides inside the filter box, a filter belt sleeved on the outer side of the driven roller and the power roller, a control box fixedly connected to the lower front side of the filter box, a first bevel gear rotatably connected inside the control box, the tail of the first bevel gear fixedly connected to the power roller, a second bevel gear meshing with one side of the first bevel gear, a transmission belt sleeved on the tail of the second bevel gear, the other side of the transmission belt penetrating the filter box and sleeved behind the fan, a scraper fixedly connected to the lower inner side of the filter box, and a waste bin directly opposite the scraper fixedly connected to the lower part of the filter box.

[0006] Preferably, the mounting plate is oriented in the same direction as the transmission belt, and a protective shell is fixedly connected to the side of the mounting plate away from the fan. The protective shell is sleeved on the outside of the transmission belt, and the lower inner wall of the protective shell is rotatably connected to the tail of the second bevel gear.

[0007] Preferably, an isolation plate is fixedly connected inside the control box.

[0008] Preferably, a rotating shaft is rotatably connected to one side of the inside of the waste bin. The height of the rotating shaft is lower than the bottom of the filter box. A baffle is fixedly connected to the outside of the rotating shaft. A torsion spring is fixedly connected between the baffle and the inner wall of the waste bin. The torsion spring is sleeved on the outside of the rotating shaft.

[0009] Preferably, the waste bin has a door connected to the lower rotating shaft.

[0010] Preferably, an air outlet pipe is fixedly connected to the outside of the filter box near the filter belt, a connecting pipe is fixedly connected to the other end of the filter box, a heat exchange box is fixedly connected to the other end of the connecting pipe, and an air inlet pipe is fixedly connected to the other end of the heat exchange box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses gas to drive a fan to rotate, which in turn drives a second bevel gear to rotate via a transmission belt. The second bevel gear drives a filter belt to rotate via a first bevel gear. A scraper is fixedly welded to the lower inner side of the filter box, and a waste bin is fixedly welded to the lower part of the filter box, facing the scraper. The scraper is in close contact with the filter belt. When the filter belt rotates, the scraper scrapes off the impurities attached to the filter belt, which can filter the air after heat exchange of the exhaust gas and clean the filter screen in time to prevent it from affecting the normal flow of gas.

[0013] 2. This utility model also allows waste to be retained by having a baffle that is lower than the bottom of the filter box. When the waste is too heavy, it pushes the baffle to overcome the tension of the torsion spring and rotates downward to allow the impurities to fall into the waste box. The waste box can be opened from the bottom through the box door to collect the impurities that have fallen into the waste box, thus collecting the impurities filtered in the filter plate. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the filter box structure from a second perspective of this utility model;

[0016] Figure 3 This is a cross-sectional view of the third-view control box structure of this utility model.

[0017] In the diagram: 1. Filter box; 2. Mounting plate; 3. Fan; 4. Power roller; 5. Driven roller; 6. Filter belt; 7. Scraper; 8. Waste bin; 9. First bevel gear; 10. Second bevel gear; 11. Drive belt; 12. Protective shell; 13. Isolation plate; 14. Rotating shaft; 15. Torsion spring; 16. Baffle; 17. Box door; 18. Control box; 19. Connecting pipe; 20. Air outlet pipe; 21. Heat exchange box; 22. Air inlet pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: an energy-saving and emission-reducing waste heat flue gas recovery device, including a filter box 1, an installation plate 2 fixedly welded to the inside of the filter box 1, a fan 3 rotatably mounted on one side of the installation plate 2, driven rollers 5 and power rollers 4 rotatably mounted on the upper and lower sides inside the filter box 1, and a filter belt 6 sleeved on the outside of the driven rollers 5 and power rollers 4 to filter the gas entering the filter box 1. A control box 18 is fixedly welded to the lower front of the filter box 1, and a first bevel gear 9 is rotatably mounted inside the control box 18. The tail of the first bevel gear 9 is fixedly welded to the power roller 4, and one side of the first bevel gear 9 is engaged. A second bevel gear 10 is connected, and a transmission belt 11 is fitted at the tail of the second bevel gear 10. The other side of the transmission belt 11 penetrates the filter box 1 and is fitted at the rear of the fan 3. The gas blows the fan 3 to rotate, which drives the second bevel gear 10 to rotate through the transmission belt 11. The second bevel gear 10 drives the filter belt 6 to rotate through the first bevel gear 9. A scraper 7 is fixedly welded to the lower inner side of the filter box 1. A waste bin 8 is fixedly welded to the lower part of the filter box 1, facing the scraper 7. The scraper 7 is in close contact with the filter belt 6. When the filter belt 6 rotates, the scraper 7 scrapes off the impurities attached to the filter belt 6. The impurities fall into the waste bin 8 for collection.

[0020] The mounting plate 2 is oriented in the same direction as the transmission belt 11. A protective shell 12 is fixedly welded to the side of the mounting plate 2 away from the fan 3. The protective shell 12 is fitted onto the outside of the transmission belt 11 to isolate the transmission belt 11 from the wind and prevent the wind from blowing the transmission belt 11. The lower inner wall of the protective shell 12 is rotatably connected to the tail of the second bevel gear 10 to ensure the stable installation of the second bevel gear 10. An isolation plate 13 is fixedly welded inside the control box 18 to prevent the gas entering the control box 18 from blowing the bevel gear structure. A rotating shaft 14 is rotatably mounted on one side inside the waste bin 8. The height of the rotating shaft 14 is lower than the lower part of the filter box 1. A baffle 16 is fixedly welded to the outside of the rotating shaft 14. A torsion spring 15 is fixedly welded between the baffle 16 and the inner wall of the waste bin 8. The torsion spring 15 is fitted onto the outside of the rotating shaft 14. The baffle 16 isolates the waste bin 8 to prevent impurities in the waste bin 8 from being blown out. When impurities fall into the upper part of the baffle 16... When the height of the baffle 16 is lower than the bottom of the filter box 1, it can retain the waste. When the weight of the waste is too large, it pushes the baffle 16 to overcome the tension of the torsion spring 15. The baffle 16 rotates downward to make the impurities fall into the waste box 8. Then the torsion spring 15 pulls the baffle 16 to rotate to the horizontal direction. The bottom of the waste box 8 is equipped with a door 17 to facilitate the recycling of the waste in the waste box 8. The filter box 1 is fixedly welded to the outside of the side near the filter belt 6. The other end of the filter box 1 is fixedly welded to the connecting pipe 19. The other end of the connecting pipe 19 is fixedly welded to the heat exchange box 21. The other end of the heat exchange box 21 is fixedly welded to the air inlet pipe 22. Air enters the heat exchange box 21 through the air inlet pipe 22. After heat exchange, it enters the filter box 1 through the connecting pipe 19. The air blows the fan 3 to rotate and is filtered through the filter belt 6. The filtered air is discharged through the air inlet pipe 20.

[0021] Working principle: In use, air enters the heat exchange box 21 through the air inlet pipe 22, and after heat exchange, it enters the filter box 1 through the connecting pipe 19 and is filtered by the filter belt 6. The filtered air is discharged through the air outlet pipe 20, and the gas blows the fan 3 to rotate, which drives the second bevel gear 10 to rotate through the transmission belt 11. The second bevel gear 10 drives the filter belt 6 to rotate through the first bevel gear 9. A scraper 7 is fixedly welded to the lower inner side of the filter box 1, and a waste box 8 is fixedly welded to the lower part of the filter box 1, facing the scraper 7. 7 is closely attached to the filter belt 6. When the filter belt 6 rotates, the scraper 7 scrapes off the impurities attached to the filter belt 6. Since the height of the baffle 16 is lower than the bottom of the filter box 1, it can retain the waste. When the weight of the waste is too large, it pushes the baffle 16 to overcome the tension of the torsion spring 15. The baffle 16 rotates downward to make the impurities fall into the waste box 8. Then the torsion spring 15 pulls the baffle 16 to rotate to the horizontal direction to isolate the waste box 8 and prevent the impurities in the waste box 8 from being blown out. The waste box 8 is opened from the bottom through the box door 17 to collect the impurities that have fallen into the waste box 8.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and emission-reducing waste heat flue gas recovery device, comprising a filter box (1), characterized in that: The installation plate (2) direction is same with the transmission belt (11) direction, the installation plate (2) is fixedly connected with the protection shell (12) away from the fan (3) side, the protection shell (12) is sleeved on the transmission belt (11) outside, the protection shell (12) lower side inner wall is rotatably connected with the second bevel gear (10) tail.

2. The energy saving and emission reducing waste heat flue gas recovery device according to claim 1, characterized in that: The control box (18) is fixedly connected with the isolation plate (13) inside.

3. The energy saving and emission reducing waste heat flue gas recovery device according to claim 1, characterized in that: The waste box (8) is rotatably connected with the rotating shaft (14) inside one side, the rotating shaft (14) height is lower than the filter box (1) lower part, the rotating shaft (14) is fixedly connected with the baffle (16) outside, the baffle (16) and the waste box (8) inner wall are fixedly connected with the torsion spring (15), the torsion spring (15) is sleeved on the rotating shaft (14) outside.

4. The energy saving and emission reducing waste heat flue gas recovery device according to claim 1, characterized in that: The waste box (8) lower part pivotally connected with the box door (17).

5. The energy saving and emission reducing waste heat flue gas recovery device according to claim 1, characterized in that: The filter box (1) is fixedly connected with the air outlet pipe (20) outside near the filter belt (6) side, the filter box (1) is fixedly connected with the connecting pipe (19) on the other end, the connecting pipe (19) is fixedly connected with the heat exchange box (21) on the other end, the heat exchange box (21) is fixedly connected with the air inlet pipe (22) on the other end.

6. The energy saving and emission reducing waste heat flue gas recovery device according to claim 1, characterized in that: ​