Anti-blocking filtering device for VOCs waste gas treatment

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses an anti-clogging filtering device for VOCs waste gas treatment, which comprises a shell, a gas inlet pipe is fixedly mounted on the left side of the shell, a gas outlet pipe is fixedly connected to one side, far away from the gas inlet pipe, of the shell, and an exhaust fan is connected to one end of the gas outlet pipe. An impurity filter plate, an adsorbent filter plate, an activated carbon filter plate and a honeycomb carbon filter plate are sequentially and movably clamped to the inner wall of the shell from left to right, and a cleaning brush is movably connected to the right side of the impurity filter plate. The cleaning brush, the spring buckle, the movable assembly and the impurity filter screen are matched, the spring buckle is arranged, the connecting effect of the cleaning brush and the movable assembly is achieved, the problem that the cleaning brush is abraded and replaced is effectively solved, the connecting mode of the spring buckle and the movable assembly is changed, the disassembling and assembling steps of the cleaning brush are simplified, and the cleaning efficiency is improved. And the worn cleaning brush is replaced in time, so that the practicability of cleaning impurities on the impurity filter screen by the cleaning brush is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to an anti-clogging filter device for VOCs waste gas treatment. Background Technology

[0002] VOCs, also known as volatile organic compounds, refer to organic compounds with a saturated vapor pressure greater than 133.32 Pa at room temperature, a boiling point between 50 and 260°C at standard atmospheric pressure of 101.3 kPa, and an initial boiling point of 250°C. They can also refer to any volatile organic solid or liquid at room temperature and pressure. High concentrations of VOCs in indoor air can easily cause symptoms such as acute poisoning. To prevent harm to human health caused by VOCs volatilization, VOCs exhaust gas needs to be purified by filtration devices before being emitted.

[0003] However, existing filtration devices are inconvenient to inspect and maintain internally. To facilitate the maintenance of the internal parts of the filtration device, some technologies have proposed related technical structures to assist in its use. For example, a utility model patent with publication number CN218306869U proposes a filtration device for reducing VOCs pollution sources in automotive repair, which achieves the effect of facilitating inspection and maintenance by setting a door.

[0004] Based on the above-disclosed technical content, theoretically, the implementation of the relevant technical structure is beneficial for the internal maintenance of the filtration device. However, according to the description in the above-disclosed technical content, the screen, adsorbent filter plate, activated carbon filter plate, and honeycomb carbon filter plate are all installed on the inner cavity of the frame in a fixed connection manner. Although the door on the frame can be opened to inspect the inner cavity of the frame, it is inconvenient to replace the fixedly installed screen, adsorbent filter plate, activated carbon filter plate, and honeycomb carbon filter plate. Furthermore, the screen, adsorbent filter plate, activated carbon filter plate, and honeycomb carbon filter plate are all fixed inside the frame with the installation direction horizontal to the ground. When the exhaust gas enters the inside of the frame and passes through the screen, the exhaust gas can pass through the screen, but the impurities in the exhaust gas will fall on the screen. As the impurities in the exhaust gas continue to accumulate on the screen, the screen will gradually be covered, and the screen holes opened on the screen are also very easy to be blocked by the impurities in the exhaust gas, thus causing the screen to be blocked. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-clogging filter device for VOCs waste gas treatment, which has the advantages of preventing the filter plate from being clogged by impurities, removing impurities from the filter plate, and keeping the filter plate unobstructed at all times, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a clogging-resistant filter device for VOCs waste gas treatment, comprising a housing, an air inlet pipe fixedly installed on the left side of the housing, an air outlet pipe fixedly connected to the side of the housing away from the air inlet pipe, and an exhaust fan connected to one end of the air outlet pipe, and an impurity filter plate, an adsorbent filter plate, an activated carbon filter plate and a honeycomb carbon filter plate movably snapped together from left to right on the inner wall of the housing, and a cleaning brush movably connected to the right side of the impurity filter plate, the side of the cleaning brush away from the impurity filter plate being movably installed with a movable component by a spring clip.

[0007] Preferably, the front of the housing is hinged with a door, and a viewing window is fixedly installed on the front of the door. A support leg is fixedly connected to the lower end face of the housing, and a discharge pipe located to the left of the impurity filter plate is fixedly installed on the lower end face of the housing. A partition plate located to the left of the air outlet pipe is fixedly sleeved on the right side of the housing. The inner wall of the housing has grooves on the upper and lower sides of the impurity filter plate, adsorbent filter plate, activated carbon filter plate and honeycomb carbon filter plate.

[0008] Preferably, vertical rods are fixedly installed on both the upper and lower sides of the impurity filter plate, adsorbent filter plate, activated carbon filter plate and honeycomb carbon filter plate, and horizontal rods are fixedly connected to the outer ends of the vertical rods, with the outer wall of the horizontal rods movably engaged with the inner wall of the groove.

[0009] Preferably, the movable component includes a ball nut, the inner wall of which is threaded with a ball screw.

[0010] Preferably, support rods are fixedly installed on both the upper and lower sides of the ball nut, and a locking block is fixedly connected to the end of the support rod away from the ball nut. A fixing block is movably engaged with the inner wall of the locking block, and the inner wall of one side of the fixing block is fixedly connected to the lower end of the spring buckle.

[0011] Preferably, a rotating shaft is fixedly sleeved on the inner wall of the ball screw, and the outer wall of the rear end of the rotating shaft is movably sleeved with the inner wall of the rear side of the housing. A rotary motor located behind the housing is fixedly installed at the rear end of the rotating shaft, and a reducer is provided on the output shaft of the rotary motor. A housing is fixedly sleeved on the outer wall of the rotary motor, and the front end of the housing is fixedly connected to the back side of the housing. An annular block located in front of the ball screw is movably sleeved on the outer wall of the front end of the rotating shaft. A connecting rod is fixedly installed on the outer wall of the annular block, and the end of the connecting rod away from the annular block is fixedly connected to the top surface of the inner wall of the housing.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the cooperation of the impurity filter screen, air inlet pipe, movable component and cleaning brush, and by utilizing the setting of the cleaning brush, achieves the cleaning effect of impurities on the impurity filter screen, effectively solving the problem of screen blockage caused by impurities in the exhaust gas in the above-disclosed technical content. The movable component drives the cleaning brush to move on the impurity filter screen, and the impurity filter screen is installed vertically in the housing, so that the impurities contained in the exhaust gas fall to the discharge pipe when passing through the impurity filter screen, thereby keeping the impurity filter screen unobstructed.

[0014] 2. This utility model, through the cooperation between the cleaning brush, spring clip, movable component and impurity filter screen, utilizes the setting of the spring clip to realize the connection between the cleaning brush and the movable component, effectively solving the problem of cleaning brush wear and replacement. By changing the connection method between the spring clip and the movable component, the disassembly and assembly steps of the cleaning brush are simplified, and worn cleaning brushes can be replaced in a timely manner, improving the practicality of the cleaning brush in cleaning impurities on the impurity filter screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a rear view of the chassis of this utility model;

[0017] Figure 3 This is a front view of the casing of this utility model;

[0018] Figure 4 This is a side view of the air outlet pipe of this utility model;

[0019] Figure 5 This is a side view of the air intake pipe of this utility model;

[0020] Figure 6 This is a rear view of the rotary motor of this utility model;

[0021] Figure 7 This is a cross-sectional view of the spring clip of this utility model;

[0022] Figure 8 This utility model Figure 3 A magnified view of point A.

[0023] In the diagram: 1. Shell; 2. Inlet pipe; 3. Outlet pipe; 4. Impurity filter plate; 5. Adsorbent filter plate; 6. Activated carbon filter plate; 7. Honeycomb carbon filter plate; 8. Cleaning brush; 9. Spring clip; 10. Moving component; 101. Ball nut; 102. Ball screw; 11. Shell door; 12. Viewing window; 13. Support leg; 14. Impurity discharge pipe; 15. Groove; 16. Partition; 17. Crossbar; 18. Support rod; 19. Locking block; 20. Fixing block; 21. Rotating shaft; 22. Rotary motor; 23. Chassis; 24. Annular block; 25. Connecting rod; 26. Vertical rod. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 , Figure 4 and Figure 7 A VOCs waste gas treatment anti-clogging filter device includes a housing 1. An air inlet pipe 2 is fixedly installed on the left side of the housing 1, providing a channel for waste gas to enter the interior of the housing 1. An air outlet pipe 3 is fixedly connected to the side of the housing 1 away from the air inlet pipe 2, providing a channel for waste gas to exit to the outside of the housing 1. One end of the air outlet pipe 3 is connected to an exhaust fan, which provides power for waste gas to enter the interior of the housing 1. From left to right, the inner wall of the housing 1 is movably connected to an impurity filter plate 4, an adsorbent filter plate 5, an activated carbon filter plate 6, and a honeycomb carbon filter plate 7. A cleaning brush 8 is movably connected to the right side of the impurity filter plate 4. The movement of the cleaning brush 8 on the impurity filter plate 4 can scrape the impurities on the impurity filter plate 4 to the impurity discharge pipe 14. The side of the cleaning brush 8 away from the impurity filter plate 4 is movably installed with a movable component 10 through a spring clip 9. The spring clip 9 is set to connect the cleaning brush 8 and the movable component 10.

[0026] The front of the housing 1 is hinged with a door 11, which allows the door 11 to be opened. At this time, the operator can pull out the impurity filter plate 4, adsorbent filter plate 5, activated carbon filter plate 6 and honeycomb carbon filter plate 7 from the inside of the housing 1 for cleaning or replacement. A viewing window 12 is fixedly installed on the front of the door 11. A support leg 13 is fixedly connected to the lower end of the housing 1, which supports the housing 1. A discharge pipe 14 located on the left side of the impurity filter plate 4 is fixedly installed on the lower end of the housing 1. A partition 16 located on the left side of the air outlet pipe 3 is fixedly sleeved on the right side of the housing 1. Grooves 15 are opened on the upper and lower sides of the impurity filter plate 4, adsorbent filter plate 5, activated carbon filter plate 6 and honeycomb carbon filter plate 7 on the inner wall of the housing 1.

[0027] Please see Figure 3 , Figure 6 and Figure 8 Vertical rods 26 are fixedly installed on the upper and lower sides of the impurity filter plate 4, adsorbent filter plate 5, activated carbon filter plate 6 and honeycomb carbon filter plate 7. The vertical rods 26 are used to connect the impurity filter plate 4, adsorbent filter plate 5, activated carbon filter plate 6 and honeycomb carbon filter plate 7 to the horizontal rod 17. The outer end of the vertical rod 26 is fixedly connected to the horizontal rod 17, and the outer wall of the horizontal rod 17 is movably engaged with the inner wall of the groove 15.

[0028] The active component 10 includes a ball nut 101, and a ball screw 102 is threadedly connected to the inner wall of the ball nut 101. The threaded connection allows the ball screw 102 to rotate circumferentially while driving the ball nut 101 to move horizontally.

[0029] Please see Figure 5 and Figure 2 Support rods 18 are fixedly installed on both the upper and lower sides of the ball nut 101. The installation of the support rods 18 serves to connect the ball nut 101 and the locking block 19. The end of the support rod 18 away from the ball nut 101 is fixedly connected to the locking block 19. The inner wall of the locking block 19 is movably engaged with the fixing block 20, and the inner wall of one side of the fixing block 20 is fixedly connected to the lower end of the spring buckle 9. The installation of the fixing block 20 provides a platform and space for the installation and movement of the spring buckle 9.

[0030] A rotating shaft 21 is fixedly sleeved on the inner wall of the ball screw 102, and the outer wall of the rear end of the rotating shaft 21 is movably sleeved with the inner wall of the rear side of the housing 1. The installation of the rotating shaft 21 serves to connect the ball screw 102 and the rotary motor 22. The rotary motor 22 located behind the housing 1 is fixedly installed at the rear end of the rotating shaft 21, and a reducer is provided on the output shaft of the rotary motor 22. The reducer is used to adjust the speed of the output shaft of the rotary motor 22. A housing 23 is fixedly sleeved on the outer wall of the rotary motor 22, and the front end of the housing 23 is fixedly connected to the back of the housing 1. The housing 23 serves to protect the rotary motor 22. An annular block 24 located in front of the ball screw 102 is movably sleeved on the outer wall of the front end of the rotating shaft 21. A connecting rod 25 is fixedly installed on the outer wall of the annular block 24, and the end of the connecting rod 25 away from the annular block 24 is fixedly connected to the top surface of the inner wall of the housing 1.

[0031] Working principle: In use, first, turn on the exhaust fan connected to the exhaust pipe 3. After the exhaust fan is turned on, the VOCs waste gas is drawn from the inlet pipe 2 into the interior of the housing 1. The waste gas entering the housing 1 passes through the impurity filter plate 4, adsorbent filter plate 5, activated carbon filter plate 6, and honeycomb carbon filter plate 7 from left to right. When the waste gas passes through the impurity filter plate 4, the impurities in the waste gas are blocked by the impurity filter plate 4 and fall to the impurity discharge pipe 14, so that the impurity filter plate 4 can separate the waste gas and impurities. The waste gas after impurity removal then reaches the adsorbent filter plate 5 and flows through the activated carbon filter plate 6 to the honeycomb carbon filter plate 7. After entering the interior of the exhaust pipe 3 through the partition plate 16, it is discharged to the outside of the housing 1. Then, to prevent impurities from entering the housing 1, the exhaust gas is discharged through the partition plate 16. The filter holes on the impurity filter plate 4 are blocked by impurities. The power of the rotary motor 22 is turned on. After the rotary motor 22 is turned on, it drives the ball screw 102 to rotate through the shaft 21. Due to the threaded connection between the ball screw 102 and the ball nut 101, the ball screw 102 rotates in a circular motion while driving the ball nut 101 to move horizontally. The movement of the ball nut 101 drives the cleaning brush 8 to move in the same direction through the spring clip 9. The movement of the cleaning brush 8 sweeps the impurities blocked in the filter holes on the impurity filter plate 4 and drops them into the interior of the discharge pipe 14. Finally, after the exhaust gas treatment is completed, the valve body on the discharge pipe 14 is opened, and the impurities accumulated inside the discharge pipe 14 are discharged to the outside of the housing 1.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0033] 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. A clogging-resistant filter device for VOCs waste gas treatment, comprising a housing (1), characterized in that: An air inlet pipe (2) is fixedly installed on the left side of the housing (1). An air outlet pipe (3) is fixedly connected to the side of the housing (1) away from the air inlet pipe (2), and one end of the air outlet pipe (3) is connected to an exhaust fan. An impurity filter plate (4), an adsorbent filter plate (5), an activated carbon filter plate (6) and a honeycomb carbon filter plate (7) are movably snapped onto the inner wall of the housing (1) from left to right. A cleaning brush (8) is movably connected to the right side of the impurity filter plate (4). The side of the cleaning brush (8) away from the impurity filter plate (4) is movably installed with the movable component (10) through a spring clip (9).

2. The anti-clogging filter device for VOCs waste gas treatment according to claim 1, characterized in that: The front of the housing (1) is hinged with a door (11), and a viewing window (12) is fixedly installed on the front of the door (11). A support leg (13) is fixedly connected to the lower end of the housing (1). A discharge pipe (14) located on the left side of the impurity filter plate (4) is fixedly installed on the lower end of the housing (1). A partition plate (16) located on the left side of the air outlet pipe (3) is fixedly sleeved on the right side of the housing (1). The inner wall of the housing (1) has grooves (15) located on the upper and lower sides of the impurity filter plate (4), the adsorbent filter plate (5), the activated carbon filter plate (6), and the honeycomb carbon filter plate (7).

3. The anti-clogging filter device for VOCs waste gas treatment according to claim 1, characterized in that: Vertical rods (26) are fixedly installed on the upper and lower sides of the impurity filter plate (4), adsorbent filter plate (5), activated carbon filter plate (6) and honeycomb carbon filter plate (7). A horizontal rod (17) is fixedly connected to the outer end of the vertical rod (26), and the outer wall of the horizontal rod (17) is movably engaged with the inner wall of the groove (15).

4. The anti-clogging filter device for VOCs waste gas treatment according to claim 1, characterized in that: The movable component (10) includes a ball nut (101) with a ball screw (102) threaded onto its inner wall.

5. The anti-clogging filter device for VOCs waste gas treatment according to claim 4, characterized in that: Support rods (18) are fixedly installed on both the upper and lower sides of the ball nut (101). A locking block (19) is fixedly connected to one end of the support rod (18) away from the ball nut (101). A fixing block (20) is movably locked to the inner wall of the locking block (19), and the inner wall of one side of the fixing block (20) is fixedly connected to the lower end of the spring buckle (9).

6. The anti-clogging filter device for VOCs waste gas treatment according to claim 4, characterized in that: The inner wall of the ball screw (102) is fixedly sleeved with a rotating shaft (21), and the outer wall of the rear end of the rotating shaft (21) is movably sleeved with the inner wall of the rear side of the housing (1). The rear end of the rotating shaft (21) is fixedly installed with a rotary motor (22) located behind the housing (1), and a reducer is provided on the output shaft of the rotary motor (22). The outer wall of the rotary motor (22) is fixedly sleeved with a housing (23), and the front end of the housing (23) is fixedly connected to the back side of the housing (1). The outer wall of the front end of the rotating shaft (21) is movably sleeved with an annular block (24) located in front of the ball screw (102). The outer wall of the annular block (24) is fixedly installed with a connecting rod (25), and the end of the connecting rod (25) away from the annular block (24) is fixedly connected to the top surface of the inner wall of the housing (1).

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