Biodegradation exhaust gas filtration and purification device
By incorporating a rotating baffle structure and a water washing mechanism at the air inlet, the problem of concentrated exhaust gas impacting the filter element is solved, achieving uniform distribution and efficient purification of exhaust gas, extending filter element life, and reducing operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGLAN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing biodegradable waste gas filtration and purification devices lack turbulence structures at the air inlet, causing waste gas to concentrate and impact a single location on the filter element, resulting in local overload, premature aging of the filter element, and pore blockage, which affects treatment efficiency and lifespan.
A rotatable baffle structure is installed at the air inlet. The drive motor drives the active gear and the driven gear. The rotating shaft is connected to the baffle to disperse the exhaust gas flow and form turbulent diffusion, ensuring that the exhaust gas is evenly distributed on the surface of the filter element. It is further purified in combination with the water washing mechanism and spray assembly.
It significantly improves the uniformity of waste gas treatment and system stability, extends the service life of filter elements, reduces maintenance costs, and maintains the continuous and efficient purification performance of the equipment.
Smart Images

Figure CN224524368U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biodegradation technology, and more specifically, to a biodegradable waste gas filtration and purification device. Background Technology
[0002] Biodegradable waste gas filtration and purification devices are environmentally friendly equipment for treating harmful substances in waste gas. They have advantages such as low energy consumption, no secondary pollution, and low operating costs. They are suitable for treating low to medium concentration organic waste gas and odorous gases in industries such as chemical, pharmaceutical, and food processing, and are a highly efficient biotechnology solution for achieving green purification.
[0003] Existing biodegradable waste gas filtration and purification devices have a significant drawback: the lack of an effective turbulence structure at the air inlet causes the waste gas to flow in a straight line after entering the device, failing to disperse evenly. This results in high-concentration waste gas continuously impacting a fixed area of the filter element, causing premature aging of the microbial membrane and pore blockage in that area, while other areas are underutilized. This uneven impact not only accelerates the wear and tear of local filter media but also leads to a decrease in overall treatment efficiency. Frequent filter element replacements increase operating costs and affect the continuous and stable operation of the equipment.
[0004] In summary, in order to improve the treatment efficiency of biodegradable waste gas filtration and purification devices and extend the service life of filter elements, it is necessary to solve the problem of concentrated waste gas impacting a single location on the filter element at the inlet, so that the waste gas can be evenly distributed across the entire surface of the filter element, thereby fully utilizing the microbial degradation capacity, ensuring long-term stable operation of the equipment, and reducing maintenance costs. Utility Model Content
[0005] The problem to be solved by the biodegradable waste gas filtration and purification device provided by this utility model is that the existing biodegradable waste gas filtration and purification devices lack a turbulence structure at the air inlet position, which causes the waste gas to impact a single position of the filter element for a long time, resulting in a reduction in the filter element's processing capacity.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a biodegradable waste gas filtration and purification device, comprising a treatment box, a sealing plate fixed to the front side of the treatment box by bolts, an air outlet at the right end of the treatment box, an air inlet at the left end of the treatment box, a purification mechanism inside the treatment box for filtering waste gas, a water washing mechanism inside the right end of the treatment box for purifying waste gas, a bracket installed on the top of the treatment box, a drive motor fixed on the bracket, a drive gear installed at the output end of the drive motor, a bushing installed on the top of the treatment box, a rotating shaft rotatably connected to the inner side of the bushing, a driven gear fixed to the top of the rotating shaft, the drive gear meshing with the driven gear, the drive motor for driving the drive gear to rotate, a baffle plate connected to the bottom of the rotating shaft through the top of the treatment box, a connecting shaft installed at the bottom of the baffle plate, and the connecting shaft rotatably connected to the treatment box.
[0007] In a preferred embodiment, the purification mechanism includes a filter assembly and a positioning assembly, wherein the filter assembly is used to treat exhaust gas and the positioning assembly is used to position the filter assembly.
[0008] In a preferred embodiment, the filter assembly includes a plurality of positioning seats fixed inside the processing chamber, a mounting frame disposed inside the positioning seats, and a filter element connected to the inner side of the mounting frame, wherein the positioning seats and the mounting frame are slidably connected.
[0009] In a preferred embodiment, the positioning component includes sliders fixed to the upper and lower sides of the mounting frame and a pull rod fixed to the front side of the mounting frame. Pulling the pull rod can cause the sliders to slide along the preset slot of the positioning seat.
[0010] In a preferred embodiment, the water washing mechanism includes a protective component and a spray component, wherein the spray component is used to wash the exhaust gas with water, and the protective component is used to prevent the sprayed water from splashing onto the filter element.
[0011] In a preferred embodiment, the spray assembly includes an inlet pipe connected to the treatment tank, a funnel disposed at the bottom of the treatment tank, and an outlet pipe fixed to the bottom of the funnel. Both the inlet pipe and the outlet pipe are connected to an external purified water tank.
[0012] In a preferred embodiment, the protective component includes a baffle fixed inside the processing box, a plurality of through holes formed on the baffle, and a plurality of protective plates fixed on the right side of the baffle, with each protective plate corresponding to one of the through holes.
[0013] The beneficial effects of this utility model are as follows:
[0014] This invention significantly improves the uniformity and system stability of exhaust gas treatment by incorporating a rotatable baffle structure at the air inlet. When the baffle rotates, it generates multi-directional turbulence on the incoming exhaust gas, effectively breaking its straight flow and creating turbulent diffusion. This dynamic turbulence mechanism ensures that the exhaust gas is evenly distributed across the entire filter element surface, avoiding localized overload impacts. Simultaneously, the turbulence enhances gas-solid contact efficiency, promoting a full reaction between exhaust gas components and the filter element, significantly improving the degradation rate of pollutants such as VOCs. This design also prevents premature clogging of the filter element, extends the filter element replacement cycle, reduces operating and maintenance costs, and ensures the equipment maintains continuous and efficient purification performance. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the internal structure of the processing box of this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the spoiler of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the purification mechanism of this utility model.
[0019] Figure 5 This is a three-dimensional structural diagram of the baffle of this utility model.
[0020] The attached diagram is labeled as follows: 1. Treatment box; 2. Sealing plate; 3. Air outlet; 4. Air inlet; 51. Positioning seat; 52. Mounting frame; 53. Filter element; 54. Slider; 55. Pull rod; 61. Baffle; 62. Through hole; 63. Protective plate; 64. Water inlet pipe; 65. Funnel; 66. Water outlet pipe; 7. Bracket; 8. Drive motor; 9. Drive gear; 10. Bushing; 11. Rotating shaft; 12. Driven gear; 13. Baffle; 14. Connecting shaft. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0022] Refer to the instruction manual appendix Figures 1 to 5A biodegradable waste gas filtration and purification device includes a treatment box 1. A sealing plate 2 is fixed to the front of the treatment box 1 by bolts. An air outlet 3 is provided at the right end of the treatment box 1, and an air inlet 4 is provided at the left end of the treatment box 1. A purification mechanism is provided inside the treatment box 1 for filtering waste gas. A water washing mechanism is provided at the right end of the inside of the treatment box 1 for purifying waste gas. A bracket 7 is installed on the top of the treatment box 1. A drive motor 8 is fixed on the bracket 7. A drive gear 9 is installed at the output end of the drive motor 8. A bushing 10 is installed on the top of the treatment box 1. A rotating shaft 11 is rotatably connected to the inner side of the bushing 10. A driven gear 12 is fixed on the top of the rotating shaft 11. The drive gear 9 meshes with the driven gear 12. The drive motor 8 is used to drive the drive gear 9 to rotate. A baffle 13 is connected to the bottom of the rotating shaft 11 through the top of the treatment box 1. A connecting shaft 14 is installed at the bottom of the baffle 13. The connecting shaft 14 is rotatably connected to the treatment box 1.
[0023] It should be noted that the drive motor 8 is controlled by an external controller to rotate back and forth periodically. The drive motor 8 drives the driven gear 12 to rotate through the drive gear 9, which in turn drives the rotating shaft 11 to rotate. The rotation of the rotating shaft 11 causes the baffle 13 connected to its bottom to rotate inside the treatment box 1. The rotating baffle 13 generates a turbulence effect on the exhaust gas entering from the air inlet 4, disperses the airflow, and promotes more uniform diffusion of the exhaust gas in the treatment box 1.
[0024] Refer to the instruction manual appendix Figure 2 and Figure 4 The purification mechanism includes a filter assembly and a positioning assembly. The filter assembly is used to treat exhaust gas, and the positioning assembly is used to position the filter assembly.
[0025] It should be noted that the filter assembly is responsible for capturing and degrading pollutants in the exhaust gas, while the positioning assembly provides a stable installation location for the filter assembly and allows for necessary maintenance operations.
[0026] Refer to the instruction manual appendix Figure 2 and Figure 4 The filter assembly includes multiple positioning seats 51 fixed inside the processing box 1, a mounting frame 52 disposed inside the positioning seats 51, and a filter element 53 connected to the inner side of the mounting frame 52. The positioning seats 51 are slidably connected to the mounting frame 52.
[0027] It should be noted that the mounting frame 52 is slidably set inside the positioning seat 51 for easy insertion or removal. The filter element 53 installed inside the mounting frame 52 is a component that comes into direct contact with the exhaust gas. It uses its specific physical structure (such as pores) and attached microbial film to filter and biodegrade the passing exhaust gas.
[0028] Refer to the instruction manual appendix Figure 4The positioning component includes sliders 54 fixed on the upper and lower sides of the mounting frame 52 and a pull rod 55 fixed on the front side of the mounting frame 52. Pulling the pull rod 55 can drive the sliders 54 to slide along the preset slot of the positioning seat 51.
[0029] It should be noted that the slider 54 cooperates with the pre-set slot of the positioning seat 51 to ensure that the mounting frame 52 slides stably within the positioning seat 51. By pulling the pull rod 55 fixed to the front side of the mounting frame 52, the entire mounting frame 52 can be moved along the slot direction of the positioning seat 51, making it easy to pull the filter element 53 out of the working position for maintenance or replacement.
[0030] Refer to the instruction manual appendix Figures 2 to 5 The water washing mechanism includes a protective component and a spray component. The spray component is used to wash the exhaust gas with water, and the protective component is used to prevent the spray water from splashing onto the filter element 53.
[0031] It should be noted that the spray assembly is responsible for spraying purified water onto the exhaust gas to further remove soluble or specific pollutants from the exhaust gas through dissolution or washing. The protective assembly is used to isolate the spray area from the filter element 53 in front, preventing the spray water from affecting the normal operation of the filter element 53.
[0032] Refer to the instruction manual appendix Figures 2 to 5 The spray assembly includes an inlet pipe 64 connected to the treatment tank 1, a funnel 65 set at the bottom of the treatment tank 1, and an outlet pipe 66 fixed at the bottom of the funnel 65. Both the inlet pipe 64 and the outlet pipe 66 are connected to an external purified water tank.
[0033] It should be noted that the water in the external purified water tank is introduced into the treatment tank 1 through the water inlet pipe 64. The bottom of the water inlet pipe 64 is connected to the spray pipe. The wastewater after spraying is collected in the funnel 65 at the bottom of the treatment tank 1 and discharged back to the external purified water tank or treatment system through the water outlet pipe 66 at the bottom, so as to realize the circulation or discharge of the water.
[0034] Refer to the instruction manual appendix Figures 2 to 5 The protective components include a baffle 61 fixed inside the processing box 1, multiple through holes 62 opened on the baffle 61, and multiple protective plates 63 fixed on the right side of the baffle 61, with each protective plate 63 corresponding to one of the through holes 62.
[0035] It should be noted that the interior of the treatment box 1 is divided into different functional areas by the baffle 61 fixed inside the treatment box 1. The multiple through holes 62 opened on the baffle 61 allow the exhaust gas to enter the spray area. At the same time, the baffle 61 and the multiple protective plates 63 fixed on the right side of the baffle 61 work together to effectively block the water splashes or water droplets generated during the spraying process from splashing onto the filter element 53 area on the left, protecting the filter element 53 from water immersion or contamination.
[0036] Working principle: After the exhaust gas enters from the left air inlet 4 of the treatment box 1, the drive motor 8 drives the driven gear 12 to periodically rotate forward and backward through the active gear 9, driving the rotating shaft 11 to make the bottom baffle 13 swing continuously. The swinging baffle 13 disperses the exhaust gas to form turbulence, so that the airflow is evenly diffused to the surface of the internal filter element 53. The pollutants in the exhaust gas are intercepted by the pores of the filter element 53 and degraded by attached microorganisms. The preliminarily purified airflow passes through the through hole 62 of the right baffle 61 and enters the water washing area. The purified water in the water inlet pipe 64 sprays and washes the exhaust gas, and the residual pollutants are dissolved and removed. The baffle 61 and its corresponding protective plate 63 prevent water from splashing back to the filter element 53 area. The sprayed wastewater is collected through the bottom funnel 65 and flows back to the external water tank through the water outlet pipe 66. Finally, the purified gas is discharged from the right air outlet 3. During maintenance, the mounting frame 52 can be pulled along the positioning seat 51 by the pull rod 55 to replace the filter element 53.
[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A biodegradable waste gas filtration and purification device, characterized in that: The system includes a treatment box (1), a sealing plate (2) fixed to the front of the treatment box (1) by bolts, an air outlet (3) at the right end of the treatment box (1), an air inlet (4) at the left end of the treatment box (1), a purification mechanism inside the treatment box (1) for filtering exhaust gas, a water washing mechanism inside the right end of the treatment box (1) for purifying exhaust gas, a bracket (7) mounted on the top of the treatment box (1), a drive motor (8) fixed on the bracket (7), and a main motor mounted on the output end of the drive motor (8). The driving gear (9) is mounted on the top of the processing box (1), and a bushing (10) is mounted on the inner side of the bushing (10). A rotating shaft (11) is rotatably connected to the inner side of the bushing (10). A driven gear (12) is fixed on the top of the rotating shaft (11). The driving gear (9) meshes with the driven gear (12). The drive motor (8) is used to drive the driving gear (9) to rotate. A spoiler (13) is connected to the bottom of the rotating shaft (11) through the top of the processing box (1). A connecting shaft (14) is mounted on the bottom of the spoiler (13). The connecting shaft (14) is rotatably connected to the processing box (1).
2. The biodegradable waste gas filtration and purification device according to claim 1, characterized in that: The purification mechanism includes a filter assembly and a positioning assembly. The filter assembly is used to treat exhaust gas, and the positioning assembly is used to position the filter assembly.
3. The biodegradable waste gas filtration and purification device according to claim 2, characterized in that: The filter assembly includes multiple positioning seats (51) fixed inside the processing box (1), a mounting frame (52) disposed inside the positioning seats (51), and a filter element (53) connected to the inside of the mounting frame (52). The positioning seats (51) and the mounting frame (52) are slidably connected.
4. The biodegradable waste gas filtration and purification device according to claim 3, characterized in that: The positioning component includes sliders (54) fixed on the upper and lower sides of the mounting frame (52) and a pull rod (55) fixed on the front side of the mounting frame (52). Pulling the pull rod (55) can drive the sliders (54) to slide along the preset slot of the positioning seat (51).
5. The biodegradable waste gas filtration and purification device according to claim 4, characterized in that: The water washing mechanism includes a protective component and a spray component. The spray component is used to wash the exhaust gas with water, and the protective component is used to prevent the spray water from splashing onto the filter element (53).
6. The biodegradable waste gas filtration and purification device according to claim 5, characterized in that: The spray assembly includes an inlet pipe (64) connected to the treatment tank (1), a funnel (65) set at the bottom of the treatment tank (1), and an outlet pipe (66) fixed at the bottom of the funnel (65). Both the inlet pipe (64) and the outlet pipe (66) are connected to an external purified water tank.
7. The biodegradable waste gas filtration and purification device according to claim 6, characterized in that: The protective components include a baffle (61) fixed inside the processing box (1), multiple through holes (62) opened on the baffle (61), and multiple protective plates (63) fixed on the right side of the baffle (61), with the protective plates (63) corresponding to the through holes (62) one by one.