A VOCs waste gas treatment device

Abstract

The utility model discloses a VOCs waste gas treatment device relates to waste gas treatment technical field, including main part structure, including the barrel, the top intercommunication of barrel has the feed pipe, the bottom intercommunication of barrel has the activated carbon filter, and, from the cleaning subassembly, including the fixed block of fixed connection in the barrel inner chamber, the bottom of fixed block is provided with the frame, the inner chamber fixed connection of frame has the sliding sleeve, the surface sliding connection of sliding sleeve has the filter plate, the bottom fixed connection of frame has the motor, the output shaft of motor penetrates frame and sliding sleeve, through the self -cleaning function of filter plate, need not manual dismounting cleaning to avoid the regular shutdown, guarantee the continuity of production, and then solved the traditional manual cleaning influence production's problem, simultaneously, the cooperation cleaning of cleaning brush and thimble can remove the impurity in the filter plate surface and mesh completely, thereby improved the filter efficiency of filter plate, prolonged its life.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a VOCs waste gas treatment device. Background Technology

[0002] To control VOC emissions, industrial processes widely employ treatment technologies such as adsorption, catalytic combustion, and absorption. Among these, activated carbon adsorption is one of the most commonly used end-of-pipe treatment technologies for VOCs due to its high efficiency, relatively low cost, and wide applicability. However, in actual operating conditions, the VOCs waste gas to be treated is often not pure gas but is mixed with a large amount of dust and impurities. Therefore, a pre-filter is usually installed at the front end of the activated carbon adsorption unit to remove most of the particulate matter and impurities in advance.

[0003] Existing pre-filters are not easy to self-clean; as the operating time increases, a large amount of dust and impurities will accumulate on the pre-filter, and its filtration efficiency will gradually decrease, while also generating its own pressure drop; currently, cleaning or replacing these pre-filters mainly relies on manual operation; this not only requires periodic shutdowns, affecting production continuity, but also the cleaning process is time-consuming and labor-intensive, increasing labor costs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing VOCs waste gas treatment devices, this utility model is proposed.

[0006] Therefore, the problem to be solved by this utility model is how to solve the problem of the pre-filter plate being inconvenient to self-clean.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a VOCs waste gas treatment device, comprising a main structure including a cylinder, the top of the cylinder being connected to a feed pipe, and the bottom of the cylinder being connected to an activated carbon filter; and...

[0008] The self-cleaning assembly includes a fixing block fixedly connected to the inner cavity of a cylinder. A frame is provided at the bottom of the fixing block, and a sliding sleeve is fixedly connected to the inner cavity of the frame. A filter plate is slidably connected to the surface of the sliding sleeve. A motor is fixedly connected to the bottom of the frame. The output shaft of the motor passes through the frame and the sliding sleeve and is fixedly connected to a cleaning brush. A roller is fixedly connected to the bottom of the cleaning brush. Sloping plates are fixedly connected to both sides of the top of the filter plate and cooperate with the rollers. A pin is provided at the bottom of the filter plate and is fixedly connected to the inner cavity of the frame. Support members are provided around the bottom of the frame. A collection member is provided on one side of the cylinder.

[0009] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, a spring is fitted on the surface of the sliding sleeve, and the filter plate and the frame are connected by the spring.

[0010] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, the support member includes a cavity formed in the inner wall of the cylinder, a support block is rotatably connected to the inner cavity of the cavity, and a spring is fixedly connected to the surface of the support block and fixedly connected to the inner wall of the cavity.

[0011] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, a trigger switch is fixedly connected to the bottom of the inner cavity of one side of the cavity, and a PLC controller is fixedly connected to the surface of the cylinder.

[0012] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, the collecting element includes a collecting port opened on one side of the cylinder, and a collecting pipe is connected to one side of the collecting port.

[0013] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, a piston rod is provided in the inner cavity of the collection pipe and contacts the inner wall of the collection pipe.

[0014] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, one side of the piston rod passes through the collection pipe and is fixedly connected to a handle.

[0015] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, the bottom of the collection pipe is connected to a waste discharge pipe, and a first one-way valve is fixedly connected to the surface of the waste discharge pipe.

[0016] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, a second one-way valve is fixedly connected to the surface of the collection pipe and cooperates with the first one-way valve.

[0017] In a preferred embodiment of the VOCs waste gas treatment device of this utility model, there are multiple sets of fixing blocks, which are evenly distributed on the top of the frame.

[0018] The beneficial effects of this utility model are as follows: the self-cleaning function of the filter plate eliminates the need for manual disassembly and cleaning, thereby avoiding periodic downtime, ensuring the continuity of production, and solving the problem of traditional manual cleaning affecting production; at the same time, the combined cleaning of the cleaning brush and the ejector pin can thoroughly remove impurities from the surface of the filter plate and the mesh, thereby improving the filtration efficiency of the filter plate and extending its service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall structural diagram of a VOCs waste gas treatment device.

[0021] Figure 2 This is a partial structural diagram of the self-cleaning component of a VOCs waste gas treatment device.

[0022] Figure 3 This is an exploded view of a portion of the self-cleaning component of a VOCs waste gas treatment device.

[0023] Figure 4 VOCs waste gas treatment device Figure 3 Enlarged view of region A in the middle.

[0024] Figure 5 This is a cross-sectional view of the cylinder and collection pipe of a VOCs waste gas treatment device.

[0025] Figure 6 VOCs waste gas treatment device Figure 5 Enlarge the B region.

[0026] In the diagram: 1. Main structure; 11. Cylinder; 12. Feed pipe; 13. Activated carbon filter; 2. Self-cleaning assembly; 21. Fixing block; 22. Frame; 23. Sliding sleeve; 24. Filter plate; 25. Motor; 26. Cleaning brush; 27. Roller; 28. Slope plate; 29. ​​Pin; 30. Support component; 31. Collector component; 241. Spring; 301. Cavity; 302. Support block; 303. Spring; 304. Trigger switch; 311. Collector pipe; 312. Piston rod; 313. Handle; 314. Waste discharge pipe; 315. First check valve; 316. Second check valve. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1, referring to Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a VOCs waste gas treatment device, including a main structure 1, including a cylinder 11, with a feed pipe 12 connected to the top of the cylinder 11 and an activated carbon filter 13 connected to the bottom of the cylinder 11.

[0031] The cylinder 11 provides a closed reaction space for waste gas treatment, ensuring that the waste gas flows in the device according to the preset path and avoids leakage; the feed pipe 12 is responsible for accurately introducing the VOCs waste gas to be treated into the cylinder 11, providing raw materials for subsequent treatment stages; the activated carbon filter 13 is located at the bottom of the cylinder 11, serving as an end-of-line treatment unit, which can adsorb and purify the pre-filtered waste gas, remove the VOCs components, and ensure that the emission gas meets the standards.

[0032] The activated carbon filter 13, trigger switch 304, PLC controller and motor 25, as well as their working principles, are all existing technologies, which are clearly known to those skilled in the art, and will not be described in detail here.

[0033] The self-cleaning component 2 includes a fixing block 21 fixedly connected to the inner cavity of the cylinder 11. A frame 22 is provided at the bottom of the fixing block 21. A sliding sleeve 23 is fixedly connected to the inner cavity of the frame 22. A filter plate 24 is slidably connected to the surface of the sliding sleeve 23. A motor 25 is fixedly connected to the bottom of the frame 22. The output shaft of the motor 25 passes through the frame 22 and the sliding sleeve 23 and is fixedly connected to a cleaning brush 26. A roller 27 is fixedly connected to the bottom of the cleaning brush 26. Sloping plates 28 are fixedly connected to both sides of the top of the filter plate 24 and cooperate with the roller 27. A pin 29 is provided at the bottom of the filter plate 24 and is fixedly connected to the inner cavity of the frame 22. Support members 30 are provided around the bottom of the frame 22. A collection member 31 is provided on one side of the cylinder 11.

[0034] The fixing block 21 stably fixes the frame 22 in the inner cavity of the cylinder 11, providing installation support for the self-cleaning component; the frame 22, as the carrier of the self-cleaning component, integrates components such as the sliding sleeve 23 and the filter plate 24; the filter plate 24, as the core of the pre-filter, can pre-filter dust and impurities in the exhaust gas to prevent them from clogging the activated carbon filter 13; the motor 25 provides power for self-cleaning, and its output shaft drives the cleaning brush 26 to rotate, thereby cleaning the impurities on the surface of the filter plate 24; the roller 27 cooperates with the slope plate 28 to drive the filter plate 24 to slide up and down; the ejector pin 29 can penetrate into the mesh of the filter plate 24 to clean the embedded impurities; the support member 30 provides support for the frame 22 and can also sense the clogging status of the filter plate 24; the collection member 31 is responsible for collecting the impurities generated during cleaning to avoid secondary pollution.

[0035] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, a spring 241 is fitted on the surface of the sliding sleeve 23, and the filter plate 24 and the frame 22 are connected by the spring 241.

[0037] Spring 241 has an elastic reset function. When filter plate 24 slides down along sliding sleeve 23 under the action of roller 27 and slope plate 28, spring 241 will be compressed. When roller 27 and slope plate 28 are no longer in contact, spring 241 can drive filter plate 24 to reset upward by its own elasticity, ensuring that filter plate 24 can be continuously and stably in the filtering working position.

[0038] The supporting force of spring 241 is greater than the supporting force of multiple sets of springs 303; when the filter plate 24 is blocked, causing the frame 22 to be subjected to increased force, this mechanical relationship can ensure that the frame 22 pushes the support block 302 to compress the springs 303 first, triggering the subsequent self-cleaning process.

[0039] Specifically, the support member 30 includes a cavity 301 formed in the inner wall of the cylinder 11. A support block 302 is rotatably connected to the inner cavity of the cavity 301. A spring 303 is fixedly connected to the surface of the support block 302 and is fixedly connected to the inner wall of the cavity 301.

[0040] The cavity 301 provides installation space for the support block 302 and the spring 303, ensuring that the components are integrated into the inner wall of the cylinder 11 without occupying the main channel for exhaust gas flow. The support block 302 directly contacts the frame 22, providing stable support for the frame 22 and maintaining the position of the self-cleaning component 2 inside the cylinder 11. The spring 303 has an elastic energy storage function. When the filter plate 24 is blocked, causing the frame 22 to move downward, the support block 302 will be pushed to rotate, at which time the spring 303 will be compressed and stored. When the filter plate 24 is cleaned and the pressure on the frame 22 decreases, the spring 303 can release energy, driving the support block 302 to reset, and then pushing the frame 22 back to the initial working position, realizing the automatic reset function.

[0041] Specifically, a trigger switch 304 is fixedly connected to the bottom of the inner cavity of one side cavity 301, and a PLC controller is fixedly connected to the surface of the cylinder 11.

[0042] When the filter plate 24 becomes clogged, causing the frame 22 to move downwards and push the support block 302 to rotate until it contacts the trigger switch 304, the trigger switch 304 will send an electrical signal to the PLC controller. As the control core of the device, the PLC controller can automatically control the motor 25 to start after receiving the signal from the trigger switch 304, thus initiating the self-cleaning process without manual intervention.

[0043] Specifically, the collecting component 31 includes a collecting port opened on one side of the cylinder 11, and a collecting pipe 311 is connected to one side of the collecting port.

[0044] The collection port is located on one side of the cylinder 11, corresponding to the position of the filter plate 24. It can accurately collect the impurities cleaned by the cleaning brush 26, preventing impurities from accumulating inside the cylinder 11. The collection pipe 311 is connected to the collection port, providing a discharge channel for impurities. It guides the impurities from inside the cylinder 11 to the outside, facilitating subsequent centralized treatment and preventing impurities from re-entering the exhaust gas treatment process, affecting the filtration and adsorption effect. This further improves the impurity treatment function of the self-cleaning component.

[0045] Specifically, the inner cavity of the collecting tube 311 is provided with a piston rod 312, which is in contact with the inner wall of the collecting tube 311.

[0046] By pushing or pulling the piston rod 312 to move within the collection tube 311, the volume within the collection tube 311 can be changed, thereby generating negative or positive pressure. When negative pressure is generated, impurities at the collection port can be drawn into the collection tube 311. When positive pressure is generated, impurities within the collection tube 311 can be pushed towards the discharge end, providing power for the intake and discharge of impurities and ensuring that the collection component 31 can effectively collect and transport impurities.

[0047] Specifically, one side of the piston rod 312 passes through the collection tube 311 and is fixedly connected to a handle 313.

[0048] By holding the handle 313, the operator can easily push or pull the piston rod 312 to move within the collection tube 311 without the need for additional tools. This simplifies the impurity discharge process, reduces the difficulty of manual operation, and improves the efficiency of impurity treatment.

[0049] Specifically, the bottom of the collection pipe 311 is connected to a waste discharge pipe 314, and a first one-way valve 315 is fixedly connected to the surface of the waste discharge pipe 314.

[0050] Waste discharge pipe 314 provides the final discharge channel for impurities in collection pipe 311, allowing impurities to enter waste discharge pipe 314 from collection pipe 311 and then be discharged outside the device; the first one-way valve 315 has a one-way conduction function, allowing only impurities to be discharged from collection pipe 311 through waste discharge pipe 314.

[0051] Specifically, a second one-way valve 316 is fixedly connected to the surface of the collection pipe 311 and cooperates with the first one-way valve 315.

[0052] When the operator pulls the piston rod 312 to create negative pressure in the collection pipe 311, the second check valve 316 opens, and impurities and gas enter the collection pipe 311 through the second check valve 316; when the piston rod 312 is pushed to create positive pressure in the collection pipe 311, the second check valve 316 closes, the first check valve 315 opens, and the impurities in the collection pipe 311 are discharged through the waste discharge pipe 314 under pressure.

[0053] Specifically, there are multiple sets of fixing blocks 21, which are evenly distributed on the top of the frame 22.

[0054] Compared to a single set of fixing blocks 21, the multiple evenly distributed blocks structure can make the supporting force on the frame 22 more uniform, preventing the frame 22 from tilting or shifting due to uneven force during long-term use or self-cleaning, thus extending the service life of the device.

[0055] In use, the VOCs waste gas to be treated enters the cylinder 11 through the feed pipe 12. It first passes through the filter plate 24, which intercepts the dust and impurities in the waste gas, achieving pre-filtration. The filtered waste gas continues to flow downward and enters the activated carbon filter 13 at the bottom of the cylinder 11. The activated carbon adsorption removes the VOCs components, and finally meets the emission standards. As the operating time increases, a large amount of impurities adhere to the surface of the filter plate 24, causing blockage. At this time, a large pressure difference is formed between the upper and lower parts of the filter plate 24, pushing the frame 22 to move downward. When the frame 22 moves downward, it squeezes the support block 302, causing the support block 302 to rotate along the cavity 301, while compressing the spring 303. When one side of the support block 302 rotates to contact the trigger switch 304 in the cavity 301, the trigger switch 304 sends a signal to the PLC controller on the surface of the cylinder 11. After receiving the signal, the PLC controller controls the motor 25 to start. The output shaft of the motor 25 passes through the frame 22 and the sliding sleeve 23, driving the cleaning brush 26 to rotate and clean the impurities on the surface of the filter plate 24. During the rotation of the cleaning brush 26, the roller 27 at its bottom contacts the slope plates 28 on both sides of the top of the filter plate 24. As the roller 27 rolls along the slope plates 28, it pushes the filter plate 24 to slide downward along the sliding sleeve 23. At this time, the spring 241 on the surface of the sliding sleeve 23 is compressed. When the filter plate 24 slides downward, the pin 29 fixed in the inner cavity of the frame 22 extends into the mesh of the filter plate 24 to clean the impurities embedded therein. After a cleaning cycle is completed, the PLC controller controls the motor 25 to turn off. At this time, the filter plate 24 resumes ventilation, the pressure difference between the upper and lower parts decreases, the spring 303 releases energy, drives the support block 302 to reset, and then pushes the frame 22 to rise until the frame 22 contacts and is limited by multiple sets of evenly distributed fixed blocks 21. Under the elastic action of the spring 241, the filter plate 24 resets upward along the sliding sleeve 23 and returns to the initial filtering position. When it is necessary to remove the impurities cleaned by the cleaning brush 26, the operator holds the handle 313 and pulls the piston rod 312 to move it inside the collection tube 311. A negative pressure is generated inside the collection tube 311. At this time, the second one-way valve 316 opens, and outside air enters to balance the air pressure. The impurities on the filter plate 24 are sucked into the collection tube 311 through the collection port. Then, the piston rod 312 is pushed to move in the opposite direction, and a positive pressure is generated inside the collection tube 311. The second one-way valve 316 closes, and the first one-way valve 315 opens. The impurities are discharged outside the device through the waste discharge pipe 314, completing the impurity cleaning.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A VOCs waste gas treatment device, characterized in that: include, The main structure (1) includes a cylindrical body (11), the top of which is connected to a feed pipe (12), and the bottom of which is connected to an activated carbon filter (13); and, The self-cleaning component (2) includes a fixing block (21) fixedly connected to the inner cavity of the cylinder (11). A frame (22) is provided at the bottom of the fixing block (21). A sliding sleeve (23) is fixedly connected to the inner cavity of the frame (22). A filter plate (24) is slidably connected to the surface of the sliding sleeve (23). A motor (25) is fixedly connected to the bottom of the frame (22). The output shaft of the motor (25) passes through the frame (22) and the sliding sleeve (23) and is fixedly connected to a cleaning brush (26). A roller (27) is fixedly connected to the bottom of the cleaning brush (26). Slope plates (28) are fixedly connected to both sides of the top of the filter plate (24) and cooperate with the roller (27). A pin (29) is provided at the bottom of the filter plate (24) and is fixedly connected to the inner cavity of the frame (22). Support members (30) are provided around the bottom of the frame (22). A collection member (31) is provided on one side of the cylinder (11).

2. The VOCs waste gas treatment device as described in claim 1, characterized in that: A spring (241) is fitted on the surface of the sliding sleeve (23), and the filter plate (24) and the frame (22) are connected by the spring (241).

3. The VOCs waste gas treatment device as described in claim 2, characterized in that: The support member (30) includes a cavity (301) formed in the inner wall of the cylinder (11). A support block (302) is rotatably connected to the inner cavity of the cavity (301). A spring (303) is fixedly connected to the surface of the support block (302) and is fixedly connected to the inner wall of the cavity (301).

4. The VOCs waste gas treatment device as described in claim 3, characterized in that: A trigger switch (304) is fixedly connected to the bottom of the cavity (301) on one side, and a PLC controller is fixedly connected to the surface of the cylinder (11).

5. The VOCs waste gas treatment device as described in claim 4, characterized in that: The collecting component (31) includes a collecting port opened on one side of the cylinder (11), and a collecting pipe (311) is connected to one side of the collecting port.

6. The VOCs waste gas treatment device as described in claim 5, characterized in that: The inner cavity of the collecting tube (311) is provided with a piston rod (312) that is in contact with the inner wall of the collecting tube (311).

7. The VOCs waste gas treatment device as described in claim 6, characterized in that: The piston rod (312) passes through the collection tube (311) on one side and is fixedly connected to a handle (313).

8. The VOCs waste gas treatment device as described in claim 7, characterized in that: The bottom of the collection pipe (311) is connected to a waste discharge pipe (314), and a first one-way valve (315) is fixedly connected to the surface of the waste discharge pipe (314).

9. The VOCs waste gas treatment device as described in claim 8, characterized in that: The surface of the collection tube (311) is fixedly connected to a second one-way valve (316), which cooperates with the first one-way valve (315).

10. The VOCs waste gas treatment device as described in claim 1, characterized in that: There are multiple sets of fixed blocks (21), which are evenly distributed on the top of the frame (22).

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