Filter device of waste gas purification unit
By combining electrostatic adsorption and mechanical vibration with flexible scraping of the cleaning components, the problem of reduced filtration capacity caused by the fragility of the filter screen material is solved, achieving more thorough dust cleaning and stable filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-03
AI Technical Summary
The filter screens of existing exhaust gas purification units are made of fragile materials. Scratching them may tear or wear them, affecting the PM2.5 interception effect and causing a decrease in filtration capacity.
The cleaning components include a fixed plate, a moving rod, a brush plate, and flexible parts. They clean the filter plate dust by combining electrostatic adsorption, mechanical vibration, and flexible scraping. The friction between the glass and the silicone generates static electricity, and the brush bristles perform non-linear oscillation cleaning to ensure thorough dust removal.
It improves the thoroughness of filter plate cleaning and the stability of system operation, prevents incomplete cleaning of dead corners, and enhances the interception effect of PM2.5.
Smart Images

Figure CN224071472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of purification unit technology, specifically to a filtration device for an exhaust gas purification unit. Background Technology
[0002] With industrial development, air pollutants are increasing. The most harmful to human health are toxic particles with a diameter equal to or smaller than PM2.5, especially volatile organic compounds such as benzene, formaldehyde, acetone, and paint. When the human body inhales these toxic particles smaller than PM2.5, the lungs cannot expel them. These toxic particles enter various organs through the circulatory system, increasing the burden on these organs. Long-term inhalation of these toxic substances can cause illness and affect human health. Therefore, air purification and filtration are necessary.
[0003] According to a public announcement of a waste gas purification unit filtration device (announcement number: CN214972548U), the above application includes a filter box, a filtration mechanism is provided inside the filter box, a dust removal mechanism is provided inside the filtration mechanism, and a dust receiving mechanism is provided on the filter box located below the dust removal mechanism. The filtration mechanism includes a through hole, which is opened through the filter box.
[0004] However, in actual use, the dust on the filter screen is scraped off by the cleaning plate. The filter screen material is relatively fragile, and hard scraping may tear or wear the filter material, damaging the microporous structure and affecting the interception effect of fine particulate matter PM2.5, thus reducing the filtration capacity. In view of this, we propose a filtration device for exhaust gas purification units. Utility Model Content
[0005] The purpose of this invention is to provide a filtration device for an exhaust gas purification unit to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter device for an exhaust gas purification unit, comprising a housing, an inspection door on the side wall of the housing, a filter plate on the inner wall of the housing, and a cleaning assembly on the inner wall of the housing, the cleaning assembly comprising:
[0007] A fixing plate, wherein the side wall of the fixing plate is provided with a wave groove;
[0008] A movable rod, the bottom of which is fixedly connected to a connector, and the movable rod is fixedly connected to a vertical rod;
[0009] The second vertical rod has a brush plate hinged to its bottom end. Brush bristles are fixedly connected to the side wall of the brush plate. A groove is provided on the inner wall of the housing, and a disturbance rod is fixedly connected to the inner wall of the groove.
[0010] Preferably, a silicone plate is fixedly connected to the inner wall of the shell, and the silicone plate is movably connected to a movable rod. The movable rod is a square glass rod. The friction between the glass and the silicone makes the glass positively charged, so as to produce an adsorption effect on small and light objects.
[0011] Preferably, the first vertical rod is sleeved with the top end face of the housing, and the second vertical rod is sleeved with the top end face of the housing.
[0012] Preferably, the disturbance rod is made of silicone cylindrical rod, and the disturbance rod is movably connected to the brush plate.
[0013] Preferably, the connector is movably connected to the wave groove, and the fixing plate is fixedly connected to the side wall of the filter plate. By pushing the vertical rod downward, the connector moves downward, thereby causing the filter plate and the fixing plate to move laterally back and forth, thus achieving the effect of shaking the filter plate.
[0014] Preferably, there is a gap between the moving rod and the filter plate, and the filter plate is movably connected to the brush bristles, which remove residual dust from the filter plate.
[0015] Preferably, a mounting bracket is fixedly connected to the bottom end face of the fixed plate, and a flexible component is fixedly connected to the top end face of the mounting bracket, the flexible component being movably connected to the filter plate.
[0016] Compared with the prior art, the present invention provides a filtration device for an exhaust gas purification unit, which has the following beneficial effects:
[0017] 1. The filtration device of this exhaust gas purification unit, through its cleaning components, uses a moving rod to electrostatically adsorb dust on the filter plate. The dust, attracted by electrostatic force, is more easily removed from the filter plate, reducing the residue of fine dust. The fixed plate moves laterally back and forth, shaking the filter plate; this mechanical vibration shakes off the fine particles, loosening the attached dust and promoting dust adsorption. The soft yet elastic bristles can penetrate deep into the microporous structure of the filter screen, brushing away dust that electrostatic adsorption failed to remove, improving cleaning thoroughness. The up-and-down sweeping motion of the bristles directly contacts the filter screen, simulating manual cleaning, further stripping away attached particles. Compared to simple fixed-bristle cleaning, this alternating non-linear oscillation increases the randomness and contact area of the cleaning, preventing the bristles from missing corners due to a fixed angle, thus improving dust removal efficiency.
[0018] 2. The filter device of this exhaust gas purification unit, through the setting of flexible parts, ensures that the surface of the moving rod near the filter plate remains clean by the scraping function of the flexible parts, so that it can continuously and effectively adsorb dust and improve the working stability of the system. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of this utility model;
[0021] Figure 3 This utility model Figure 2 Schematic diagram of the structure of region A in the middle;
[0022] Figure 4 This is a schematic diagram of the brush plate structure of this utility model;
[0023] Figure 5 This utility model Figure 4 Schematic diagram of the structure of region B in the middle;
[0024] Figure 6 This utility model Figure 2 Schematic diagram of the structure of region C.
[0025] In the diagram: 1. Housing; 2. Inspection door; 3. Filter plate; 4. Cleaning assembly; 401. Fixing plate; 402. Wave groove; 403. Moving rod; 404. Connector; 405. Silicone plate; 406. Vertical rod one; 407. Vertical rod two; 408. Brush plate; 409. Brush bristles; 410. Groove; 411. Disturbance rod; 5. Mounting bracket; 6. Flexible component. Detailed Implementation
[0026] like Figures 1-6 As shown, this utility model provides a technical solution: a filter device for an exhaust gas purification unit, including a housing 1, an inspection door 2 on the side wall of the housing 1, a filter plate 3 on the inner wall of the housing 1, and a cleaning component 4 on the inner wall of the housing 1. The cleaning component 4 includes a fixing plate 401, a wave groove 402, a moving rod 403, a connector 404, a silicone plate 405, a first vertical rod 406, a second vertical rod 407, a brush plate 408, brush bristles 409, a groove 410, and a disturbance rod 411.
[0027] In one embodiment of this utility model, the side wall of the fixed plate 401 is provided with a wave groove 402, the bottom of the moving rod 403 is fixedly connected to the connector 404, the moving rod 403 is fixedly connected to the vertical rod 406, the vertical rod 406 is sleeved with the top end face of the housing 1, there is a gap between the moving rod 403 and the filter plate 3, the inner wall of the housing 1 is fixedly connected to the silicone plate 405, the silicone plate 405 is movably connected to the moving rod 403, the moving rod 403 is a glass square rod, the glass is positively charged by friction between the glass and the silicone, the connector 404 is movably connected to the wave groove 402, the fixed plate 401 is fixedly connected to the side wall of the filter plate 3, the connector 404 moves downward, thereby causing the filter plate 3 and the fixed plate 401 to move laterally back and forth, thereby shaking the filter plate 3.
[0028] The second vertical rod 407 is sleeved with the top end face of the housing 1. The bottom end of the second vertical rod 407 is hinged with a brush plate 408. The side wall of the brush plate 408 is fixedly connected with bristles 409. The inner wall of the housing 1 is provided with a groove 410. The inner wall of the groove 410 is fixedly connected with a disturbance rod 411. The disturbance rod 411 is made of silicone cylindrical rod. The disturbance rod 411 is movably connected with the brush plate 408. The filter plate 3 is movably connected with the bristles 409. The bristles 409 remove residual dust from the filter plate 3.
[0029] In addition, a mounting bracket 5 is fixedly connected to the bottom end face of the fixed plate 401, and a flexible member 6 is fixedly connected to the top end face of the mounting bracket 5. The flexible member 6 is movably connected to the filter plate 3. The moving rod 403 moves downward to squeeze the flexible member 6. When the moving rod 403 moves completely below the flexible member 6, the moving rod 403 is pulled upward, so that the end face of the flexible member 6 scrapes the dust on the side of the moving rod 403 near the filter plate 3. The moving rod 403 relies on electrostatic adsorption of dust, but if the dust accumulation on the surface is too thick, it may shield the charge and reduce the adsorption capacity. The scraping function of the flexible member 6 ensures that the surface of the moving rod 403 near the filter plate 3 remains clean, so that it can continuously and effectively adsorb dust and improve the working stability of the system.
[0030] In this invention, during use, the vertical rod 406 is pulled up and down repeatedly, causing the moving rod 403 to rub against the silicone plate 405, thus giving the glass a positive charge. Then, the vertical rod 406 is pushed down, causing the moving rod 403 to move downward. The moving rod 403 electrostatically attracts dust on the filter plate 3. After being attracted by electrostatic force, the dust is more easily removed from the filter plate 3, reducing the residue of fine dust and improving the cleaning effect. The connecting piece 404 is movably connected to the corrugated groove 402. By pushing the vertical rod 406 downward, the connecting piece 404 is driven to move downward, thereby causing the filter plate 3 and the fixed plate 401 to move laterally back and forth, thus shaking the filter plate 3. The mechanical vibration can shake off these fine particles, loosening the attached dust and promoting the dust adsorption effect. Then, push the vertical rod 407 downwards, causing the brush plate 408 and bristles 409 to move downwards. The left and right sides of the brush plate 408 are alternately blocked by the disturbance rod 411. Then, the disturbance rod 411 is pushed by the brush plate 408 to deform, thereby releasing the brush plate 408, causing the bristles 409 to sweep up and down. The bristles 409 are gentle but elastic, and can penetrate into the microporous structure of the filter screen to brush away the dust that cannot be removed by electrostatic adsorption, thus improving the thoroughness of cleaning. The up and down sweeping of the bristles 409 directly contacts the filter screen, simulating manual cleaning action, and further peeling off the attached particles. Compared with simple fixed brush bristle 409 cleaning, this alternating release non-linear oscillation can increase the randomness and contact area of cleaning, prevent the bristles 409 from not being able to clean dead corners due to a fixed angle, and improve the dust removal effect.
[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. An exhaust gas purification unit filter device comprising a housing (1), a side wall of the housing (1) being provided with an access door (2), characterized in that: The inner wall of the shell (1) is provided with a filter plate (3), the inner wall of the shell (1) is provided with a cleaning assembly (4), the cleaning assembly (4) comprises: The side wall of the fixed plate (401) is provided with a wave groove (402); The bottom of the moving rod (403) is fixedly connected with a connecting piece (404), and the top end surface of the moving rod (403) is fixedly connected with a vertical rod one (406); The bottom end of the vertical rod two (407) is hingedly connected with a brush plate (408), the side wall of the brush plate (408) is fixedly connected with a brush (409), the inner wall of the shell (1) is provided with a groove (410), and the inner wall of the groove (410) is fixedly connected with a disturbance rod (411).
2. The filter device of claim 1, wherein: The inner wall of the shell (1) is fixedly connected with a silica gel plate (405), the silica gel plate (405) is movably connected with the moving rod (403), and the moving rod (403) is a glass square rod.
3. The filter device of claim 1, wherein: The vertical rod one (406) is sleeved with the top end surface of the shell (1), and the vertical rod two (407) is sleeved with the top end surface of the shell (1).
4. The filter device of claim 1, wherein: The material of the disturbance rod (411) is a silica gel cylindrical rod, and the disturbance rod (411) is movably connected with the brush plate (408).
5. The filter device of claim 1, wherein: The connecting piece (404) is movably connected with the wave groove (402), and the fixed plate (401) is fixedly connected with the side wall of the filter plate (3).
6. The filter device of claim 1, wherein: There is a gap between the moving rod (403) and the filter plate (3), and the filter plate (3) is movably connected with the brush (409).
7. The filter device of claim 1, wherein: The bottom end surface of the fixed plate (401) is fixedly connected with a mounting bracket (5), the top end surface of the mounting bracket (5) is fixedly connected with a flexible piece (6), and the flexible piece (6) is movably connected with the filter plate (3).
Citation Information
Patent Citations
Filter device of waste gas purification unit
CN214972548U