Enamelled wire production exhaust gas adsorption device

Abstract

The utility model discloses an enameled wire production waste gas adsorption device, including device body, device body includes base, dust filter device and harmful gas adsorption device, and dust filter device and harmful gas adsorption device all install in the top of base, dust filter device includes water storage tank, first fan, second fan, sprays tank, pump body, lower delivery pipe, waste gas collecting pipe, dust retention frame, side fender and gas input pipe, and first fan is located water storage tank left side, and second fan is located water storage tank right side, and sprays tank installs in water storage tank top pump body installs in water storage tank rear side, and lower delivery pipe installs in water storage tank rear side bottom, and pump body input end is connected with lower delivery pipe through pipeline. The device can be through the hierarchical processing and the structure optimization, avoids the dust blockage activated carbon, prolongs its service life, improves the overall nature and the efficiency of harmful substance filtration in waste gas again, and the pull -out type design of each core part makes daily maintenance more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology in enameled wire production, specifically to an adsorption device for waste gas from enameled wire production. Background Technology

[0002] Enameled wire mainly consists of a conductor and an outer insulation layer. It is made by annealing and softening bare wire, followed by multiple coatings and baking processes. The baking process generates a lot of waste gas, which, if not treated promptly, will cause significant harm to the production environment and the surrounding environment.

[0003] In existing enameled wire production, the waste gas generated is generally drawn into activated carbon filters for adsorption and filtration of harmful substances. However, the gas contains a lot of dust, which can cause the activated carbon filters to become clogged, reducing their lifespan and compromising their ability to filter harmful substances from the gas.

[0004] Therefore, a solution is needed. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an adsorption device for waste gas from enameled wire production, thereby solving the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a waste gas adsorption device for enameled wire production, comprising a device body, the device body including a base, a dust filter, and a harmful gas adsorption device, both of which are installed on the top of the base; the dust filter includes a water storage tank, a first fan, a second fan, a spray box, a pump body, a lower conveying pipe, a waste gas collection pipe, a dust retention frame, a side baffle plate, and a gas input pipe; the first fan is located on the left side of the water storage tank, the second fan is located on the right side of the water storage tank, the spray box is installed on the top of the water storage tank, the pump body is installed on the rear side of the water storage tank, and the lower conveying pipe is installed at the bottom of the rear side of the water storage tank; the pump body conveys... The inlet is connected to the lower conveying pipe via a pipe. The top output end of the pump body is connected to the spray box via a pipe. Several sets of spray heads are provided at the bottom of the spray box. The exhaust gas collection pipe is installed at an angle on the top right side of the water storage tank. The exhaust gas collection pipe is connected to the input end of the second fan via a pipe. A frame groove is provided at the middle of the front side of the water storage tank. The dust retention frame is installed inside the water storage tank via the frame groove. The side baffle is fixed to the front side of the water storage tank with screws. The gas input pipe has an L-shaped structure and is installed at the top right side of the water storage tank. The gas input pipe is connected to the output end of the first fan. A drain pipe is provided at the bottom front side of the water storage tank. A sealing plug is installed inside the drain pipe.

[0007] Preferably, the dust retention frame has a convex structure at both ends, a dust filter screen is installed inside the dust retention frame, and a frame handle is provided on the front side of the dust retention frame.

[0008] Preferably, the side baffle includes a mounting block and a water guide plate. The water guide plate is welded to the bottom of the mounting block in an inclined manner. The mounting block has a rectangular structure, and the surface of the mounting block has several sets of mounting holes distributed in a horizontally equidistant manner.

[0009] Preferably, the harmful gas adsorption device includes a gas filter box, a third fan, a diffuser, and gas filtering devices. The third fan is located on the right side of the gas filter box, and its input end is connected to the top of the gas filter box via a pipe. The diffuser has an L-shaped structure and is installed at the bottom left side of the gas filter box. Its input end is connected to the output end of the second fan via a pipe. The front side of the gas filter box has three filter plate mounting grooves arranged in a row at equal intervals. The filter plate mounting grooves have an arc-shaped structure. There are three gas filtering devices, and each of the three gas filtering devices is installed in the gas filter box through one of the three filter plate mounting grooves.

[0010] Preferably, the gas filtration device includes a filter frame, side sliders, and an activated carbon filter plate. Both the filter frame and the activated carbon filter plate are arc-shaped structures. The activated carbon filter plate is installed inside the filter frame. A set of side sliders is provided, and the set of side sliders is respectively installed at the left and right ends of the filter frame. A filter operation handle is provided at the front end of the filter frame.

[0011] (III) Beneficial Effects This utility model provides an adsorption device for waste gas from enameled wire production. It has the following beneficial effects: In this solution, the exhaust gas adsorption device for enameled wire production adopts a tiered treatment architecture combining dust pretreatment and deep adsorption of harmful gases, effectively solving the problems of short lifespan and incomplete filtration caused by dust clogging in traditional single activated carbon adsorption. In the dust filtration stage, after the first fan introduces the exhaust gas, the pump draws water from the storage tank and delivers it to the spray box. The water mist formed by the spray head fully combines with the dust. The inclined water guide plate of the side baffle not only guides the water flow back to the storage tank, but also ensures that the exhaust gas passes evenly through the dust filter screen in the dust retention frame, greatly improving the dust interception efficiency. Furthermore, the dust retention frame can be easily pulled out through the frame slide groove and frame handle, facilitating regular dust cleaning and reducing dust from entering subsequent stages at the source. In the harmful gas adsorption stage, the exhaust gas filtered by dust is introduced into the gas filter box by a third fan. A diffuser ensures uniform gas diffusion, and three arc-shaped gas filtration devices (with built-in arc-shaped activated carbon filter plates) significantly increase the contact area between harmful gases and activated carbon, allowing for more thorough and comprehensive adsorption. Simultaneously, the gas filtration devices can be easily pulled out using the filter plate mounting grooves and filter operation handles, facilitating the replacement and cleaning of the activated carbon filter plates. Furthermore, the drain pipe and sealing plug at the bottom of the water tank facilitate the periodic discharge of dust-laden wastewater and the replenishment of clean water, ensuring the stability of dust filtration. In summary, this device, through graded treatment and structural optimization, avoids dust clogging of the activated carbon, extending its service life, while improving the comprehensiveness and efficiency of harmful substance filtration in the exhaust gas. The pull-out design of each core component makes daily maintenance more convenient and efficient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the dust filtration device of this utility model; Figure 3 This is a schematic diagram of the structure of the side baffle of this utility model; Figure 4 This is a schematic diagram of the harmful gas adsorption device of this utility model; Figure 5 This is a schematic diagram of the gas filtration device of this utility model.

[0013] In the diagram, 1. Device body; 2. Base; 3. Dust filtration device; 4. Harmful gas adsorption device; 5. Water storage tank; 6. First fan; 7. Second fan; 8. Spray box; 9. Pump body; 10. Lower conveying pipe; 11. Waste gas collection pipe; 12. Dust retention frame; 13. Side baffle plate; 14. Gas input pipe; 15. Spray head; 16. Frame slide groove; 17. Dust filter screen; 18. Frame handle; 19. Drain pipe; 20. Sealing plug; 21. Mounting block; 22. Water guide plate; 23. Mounting hole; 24. Gas filtration box; 25. Third fan; 26. Diffuser pipe; 27. Filter plate mounting slide groove; 28. Gas filtration device; 29. ​​Filter frame; 30. Side slider; 31. Activated carbon filter plate; 32. Filter operation handle. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-5 This utility model provides a technical solution: Example 1 Regarding the aforementioned problems: In existing enameled wire production, the waste gas generated is generally drawn into activated carbon filters for adsorption and filtration of harmful substances. However, the gas contains a lot of dust, which can cause blockage of the activated carbon filters, reducing their service life and compromising their ability to effectively filter harmful substances from the gas.

[0016] The solution is as follows: A waste gas adsorption device for enameled wire production includes a device body 1. The device body 1 includes a base 2, a dust filter 3, and a harmful gas adsorption device 4. Both the dust filter 3 and the harmful gas adsorption device 4 are installed on top of the base 2. The dust filter 3 includes a water storage tank 5, a first fan 6, a second fan 7, a spray box 8, a pump body 9, a lower conveying pipe 10, a waste gas collection pipe 11, a dust retention frame 12, a side baffle plate 13, and a gas input pipe 14. The first fan 6 is located on the left side of the water storage tank 5, and the second fan 7 is located on the right side of the water storage tank 5. The spray box 8 is installed on top of the water storage tank 5. The pump body 9 is installed on the rear side of the water storage tank 5. The lower conveying pipe 10 is installed at the bottom rear side of the water storage tank 5. The input end of the pump body 9 is connected to the lower conveying pipe via a pipe. The pump body 9 is connected to the top of the pump body 9 via a pipe. The spray box 8 is equipped with several sets of spray heads 15 at the bottom. The exhaust gas collection pipe 11 is installed at the top right side of the water storage tank 5 at an angle. The exhaust gas collection pipe 11 is connected to the input end of the second fan 7 via a pipe. The water storage tank 5 has a frame groove 16 at the middle of the front side. The dust retention frame 12 is installed inside the water storage tank 5 via the frame groove 16. The side baffle 13 is fixed to the front side of the water storage tank 5 with screws. The gas input pipe 14 has an L-shaped structure and is installed at the top right side of the water storage tank 5. The gas input pipe 14 is connected to the output end of the first fan 6. The water storage tank 5 has a drain pipe 19 at the bottom front side. A sealing plug 20 is installed inside the drain pipe 19.

[0017] Analysis of the above content: The dust filtration device 3 and the harmful gas adsorption device 4 are supported by the base 2, realizing the graded treatment of waste gas. In the dust filtration device 3, the first fan 6 sends the waste gas from the enameled wire production into the water storage tank 5 through the L-shaped gas input pipe 14; the pump body 9 draws water from the bottom of the water storage tank 5 through the lower conveying pipe 10, and transports it to the top spray box 8 through the pipeline, and then sprays it downward by several sets of spray heads 15 to form water mist. The dust in the waste gas combines with the water mist and settles; the side baffle 13 blocks the spray water from splashing, and at the same time guides the airflow to flow evenly to the dust retention frame 12; the treated gas is collected through the inclined waste gas collection pipe 11 and sent into the harmful gas adsorption device 4 by the second fan 7. The drain pipe 19 at the bottom of the water storage tank 5 can be opened and closed by the sealing plug 20 to discharge dust-laden wastewater. During normal operation: check the operating status of the first fan 6, the second fan 7, and the pump body 9 to ensure that the water level in the water storage tank 5 is sufficient and that the sealing plug 20 seals the drain pipe 19. During cleaning and maintenance: open the sealing plug 20 and drain the dust-laden wastewater in the water storage tank 5 through the drain pipe 19, and replenish with clean water. If the spray head 15 is blocked, the spray box 8 can be disassembled for unblocking. Dust pretreatment is achieved through "spray dust suppression + airflow guidance" to prevent dust from directly entering the subsequent adsorption stage. The L-shaped gas input pipe 14 and the inclined exhaust gas collection pipe 11 optimize the airflow path and improve the contact efficiency between dust and water mist. The water storage tank 5 integrates water storage, spraying, and settling functions and has a compact structure.

[0018] Example 2: Please see Figure 1-5 The present invention provides a technical solution based on embodiment one: the dust retention frame 12 has a convex structure at both ends, a dust filter screen 17 is installed inside the dust retention frame 12, and a frame handle 18 is provided on the front side of the dust retention frame 12.

[0019] Analysis of the above: The dust retention frame 12 is installed in the water storage tank 5 through the frame slide 16. The convex structures at both ends of the frame match the slide, ensuring stable installation. The internal dust filter 17 can intercept fine dust that has not settled after spraying, further purifying the exhaust gas. During daily use: observe the dust accumulation on the dust filter 17. When the screen is obviously clogged, pull the dust retention frame 12 out of the frame slide 16 through the frame handle 18. During maintenance: clean or replace the dust filter 17, and reinsert it into the frame slide 16 after cleaning. The convex structure improves installation stability and prevents shaking during operation. The pull-out design (with the frame handle 18) makes it convenient to clean / replace the filter without disassembling the main body of the device. The dual interception (spraying + filter) greatly reduces the probability of dust entering subsequent stages.

[0020] Example 3: Please see Figure 1-5The present invention provides a technical solution based on Embodiment 1: the side baffle plate 13 includes a mounting block 21 and a water guide plate 22. The water guide plate 22 is welded to the bottom of the mounting block 21 in an inclined manner. The mounting block 21 has a rectangular structure. The surface of the mounting block 21 is provided with a plurality of sets of mounting holes 23 distributed in a horizontally equidistant manner.

[0021] Analysis of the above content: The side baffle plate 13 is fixed to the front side of the water storage tank 5 with screws through the mounting holes 23 on the mounting block 21. The bottom inclined water guide plate 22 can guide the water spray generated by the spray back to the water storage tank 5, reducing water waste. At the same time, the inclined angle of the water guide plate 22 forces the exhaust gas to concentrate towards the dust retention frame 12, so that the airflow passes through the dust filter screen 17 more evenly, improving the filtration efficiency. The integrated design (mounting block 21 + water guide plate 22) has both water blocking and airflow guiding functions, improving the integration of the device. The inclined water guide plate 22 not only saves water resources, but also optimizes the exhaust gas filtration path and enhances the dust interception effect.

[0022] Example 4: Please see Figure 1-5 This utility model provides a technical solution based on Embodiment 1: The harmful gas adsorption device 4 includes a gas filter box 24, a third fan 25, a diffuser 26, and a gas filter device 28. The third fan 25 is located on the right side of the gas filter box 24, and the input end of the third fan 25 is connected to the top of the gas filter box 24 through a pipe. The diffuser 26 has an L-shaped structure and is installed at the bottom left side of the gas filter box 24. The input end of the diffuser 26 is connected to the output end of the second fan 7 through a pipe. The front side of the gas filter box 24 has three filter plate mounting grooves 27 arranged in a row at equal intervals. The filter plate mounting grooves 27 have an arc-shaped structure. There are three gas filter devices 28, and the three gas filter devices 28 are respectively installed in the gas filter box 24 through the three filter plate mounting grooves 27.

[0023] Analysis of the above: The dust-filtered exhaust gas is sent to the bottom of the gas filter box 24 by the second fan 7 through the diffuser 26. The L-shaped diffuser 26 ensures uniform diffusion of the gas within the box. The third fan 25 draws air from the top of the gas filter box 24, creating negative pressure that causes the gas to flow upwards. The gas then passes sequentially through three gas filter devices 28 installed in the filter plate mounting grooves 27, completing the adsorption of harmful gases. The arc-shaped filter plate mounting grooves 27 are adapted to the arc-shaped structure of the gas filter devices 28, ensuring a tight installation. During normal operation: the extraction efficiency of the third fan 25 is checked to ensure stable airflow within the gas filter box 24. When replacing filter components: based on the activated carbon adsorption saturation level, the gas filter device 28 is pulled out through the filter plate mounting grooves 27, replaced, and then reinserted. The three gas filter devices 28 are arranged in a row to achieve multi-stage adsorption, improving the removal rate of harmful gases. The arc-shaped filter plate mounting grooves 27 match the filter devices to ensure no gas leakage.

[0024] Example 5: Please see Figure 1-5 The present invention provides a technical solution based on Embodiment 1: the gas filtration device 28 includes a filter frame 29, side sliders 30 and activated carbon filter plate 31. Both the filter frame 29 and the activated carbon filter plate 31 are arc-shaped structures. The activated carbon filter plate 31 is installed inside the filter frame 29. A set of side sliders 30 is provided, and the set of side sliders 30 is respectively installed at the left and right ends of the filter frame 29. The front end of the filter frame 29 is provided with a filter operation handle 32.

[0025] Analysis of the above: The activated carbon filter plate 31 inside the filter frame 29 adopts an arc-shaped structure, which significantly increases the contact area with the exhaust gas compared to a planar structure, thus improving the adsorption efficiency of harmful gases. The side sliders 30 at both ends of the filter frame 29 cooperate with the arc-shaped filter plate mounting grooves 27 to ensure stable installation of the device in the gas filter box 24 without affecting airflow. During routine inspection: Gently pull the filter frame 29 through the filter operation handle 32 to observe the adsorption status of the activated carbon filter plate 31. When replacing: Hold the filter operation handle 32, pull out the device along the filter plate mounting groove 27, replace with a new activated carbon filter plate 31, and then push it back in. The arc-shaped activated carbon filter plate 31 increases the contact area and improves the overall adsorption. The side sliders 30 cooperate with the arc-shaped grooves to make the pull-out replacement smoother. The filter operation handle 32 is designed with user-friendliness in mind, reducing maintenance difficulty. Because a large amount of dust has been removed in the early stage, the probability of clogging of the activated carbon filter plate 31 is reduced, and its service life is extended.

[0026] Working principle: During operation, the dust filtration device 3 and the harmful gas adsorption device 4 achieve graded treatment of waste gas. The first fan 6 sends the waste gas into the water storage tank 5 through the L-shaped gas input pipe 14. The pump body 9 draws water from the water storage tank 5 to the spray box 8 through the lower conveying pipe 10. The water mist formed by the spray head 15 combines with the dust in the waste gas and settles. The inclined water guide plate 22 of the side baffle plate 13 guides the water flow back and makes the airflow pass evenly through the dust filter screen 17 of the dust retention frame 12 to further intercept dust (this pretreatment step greatly reduces dust entering the subsequent system and avoids activated carbon clogging). The gas filtered by the dust is sent by the second fan 7 through the waste gas collection pipe 11. The gas is fed into the gas filter box 24 through the L-shaped diffuser 26. The diffuser 26 makes the gas diffuse evenly. With the negative pressure formed by the third fan 25, the gas passes through three arc-shaped gas filter devices 28 in sequence. The arc-shaped activated carbon filter plate 31 efficiently adsorbs harmful gases due to the increased contact area (improving the overall adsorption). At the same time, the dust retention frame 12 is pulled out for maintenance through the frame slide 16 and the gas filter device 28 is pulled out through the filter plate installation slide 27 (reducing the difficulty of operation). The drain pipe 19 of the water storage tank 5 facilitates the cleaning of dust-containing wastewater. Finally, the efficient separation of dust and harmful gases in the exhaust gas is achieved, the service life of activated carbon is extended, and the continuous filtration effect is guaranteed.

[0027] This utility model comprises: 1. Device body; 2. Base; 3. Dust filtration device; 4. Harmful gas adsorption device; 5. Water storage tank; 6. First fan; 7. Second fan; 8. Spray box; 9. Pump body; 10. Lower conveying pipe; 11. Waste gas collection pipe; 12. Dust retention frame; 13. Side baffle plate; 14. Gas input pipe; 15. Spray head; 16. Frame slide groove; 17. Dust filter screen; 18. Frame handle; 19. Drain pipe; 20. Sealing plug; 21. Mounting block; 22. Water guide plate; 23. Mounting hole; 24. Gas filtration box; 25. Third fan; 26. Diffuser pipe; 27. Filter plate mounting slide groove; 28. Gas filtration device; 29. ​​Filter frame; 30. Side slider; 31. Activated carbon filter plate; 32. Filter operation handle. All components are... The structure and principle of the components, which are common standard parts or known to those skilled in the art, can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that the waste gas generated in the existing enameled wire production is generally drawn into the activated carbon filter for adsorption and filtration of harmful substances. However, the gas contains a lot of dust, which can cause the activated carbon filter to become clogged, reducing its service life and the comprehensiveness of its filtration of harmful substances in the gas. This utility model, through the combination of the above-mentioned components, can achieve graded treatment and structural optimization, which can not only avoid dust clogging of activated carbon and extend its service life, but also improve the comprehensiveness and efficiency of filtration of harmful substances in the waste gas. Moreover, the pull-out design of each core component makes daily maintenance more convenient and efficient.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adsorption device for waste gas from enameled wire production, characterized in that: The device includes a main body (1), which includes a base (2), a dust filter (3) and a harmful gas adsorption device (4), both of which are installed on the top of the base (2). The dust filtration device (3) includes a water storage tank (5), a first fan (6), a second fan (7), a spray box (8), a pump body (9), a lower conveying pipe (10), a waste gas collection pipe (11), a dust retention frame (12), a side baffle plate (13), and a gas input pipe (14). The first fan (6) is located on the left side of the water storage tank (5), and the second fan (7) is located on the right side of the water storage tank (5). The spray box (8) is installed on the top of the water storage tank (5). The pump body (9) is installed on the rear side of the water storage tank (5). The lower conveying pipe (10) is installed at the bottom of the rear side of the water storage tank (5). The input end of the pump body (9) is connected to the lower conveying pipe (10) through a pipe. The output end of the top of the pump body (9) is connected to the spray box (8) through a pipe. The bottom of the spray box (8) A number of spray heads (15) are provided. The exhaust gas collection pipe (11) is installed at the top right side of the water storage tank (5) at an angle. The exhaust gas collection pipe (11) is connected to the input end of the second fan (7) through a pipe. A frame slide groove (16) is provided at the middle of the front side of the water storage tank (5). The dust retention frame (12) is installed inside the water storage tank (5) through the frame slide groove (16). The side baffle (13) is fixed to the front side of the water storage tank (5) with screws. The gas input pipe (14) has an L-shaped structure and is installed at the top right side of the water storage tank (5). The gas input pipe (14) is connected to the output end of the first fan (6). A drain pipe (19) is provided at the bottom front side of the water storage tank (5). A sealing plug (20) is installed inside the drain pipe (19).

2. The enameled wire production waste gas adsorption device according to claim 1, characterized in that: The dust retention frame (12) has a convex structure at both ends. A dust filter screen (17) is installed inside the dust retention frame (12). A frame handle (18) is provided on the front side of the dust retention frame (12).

3. The enameled wire production waste gas adsorption device according to claim 1, characterized in that: The side baffle (13) includes a mounting block (21) and a water guide plate (22). The water guide plate (22) is welded to the bottom of the mounting block (21) in an inclined manner. The mounting block (21) has a rectangular structure. The surface of the mounting block (21) is provided with a number of mounting holes (23) distributed in a horizontally equidistant manner.

4. The enameled wire production waste gas adsorption device according to claim 1, characterized in that: The harmful gas adsorption device (4) includes a gas filter box (24), a third fan (25), a diffuser (26), and a gas filter device (28). The third fan (25) is located on the right side of the gas filter box (24). The input end of the third fan (25) is connected to the top of the gas filter box (24) through a pipe. The diffuser (26) has an L-shaped structure. The diffuser (26) is installed at the bottom left side of the gas filter box (24). The input end of the diffuser (26) is connected to the output end of the second fan (7) through a pipe. The front side of the gas filter box (24) is provided with three filter plate mounting grooves (27) arranged in a row at equal intervals. The filter plate mounting grooves (27) have an arc-shaped structure. There are three gas filter devices (28), and the three gas filter devices (28) are respectively installed in the gas filter box (24) through the three filter plate mounting grooves (27).

5. The enameled wire production waste gas adsorption device according to claim 4, characterized in that: The gas filtration device (28) includes a filter frame (29), side sliders (30), and activated carbon filter plate (31). Both the filter frame (29) and the activated carbon filter plate (31) are arc-shaped structures. The activated carbon filter plate (31) is installed inside the filter frame (29). A set of side sliders (30) is provided, and a set of side sliders (30) is installed at the left and right ends of the filter frame (29). The front end of the filter frame (29) is provided with a filter operation handle (32).

Images