Environment-friendly adsorption box for polyethylene plastic film
Patent Information
- Application Number
- CN202522023200.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-19
AI Technical Summary
[0004]上述现有技术方案中,通过滤网对废气进行过滤,但是在实际使用的过程中,滤网与废气接触的一侧壁面经过长时间的使用,容易被堵塞,导致过滤效能显著衰减,维护更换频次增加,整体使用寿命缩短
[0018]Firstly, this invention introduces external exhaust gas into the intake pipe. Since one end of the intake pipe is sealed, as the internal air pressure increases, it pushes the vent outward, separating the sealing plug from the vent. The exhaust gas then escapes through the gap between the sealing plug and the vent. Finally, the exhaust gas is filtered by a filter plate, and the filtered gas is discharged through an exhaust pipe. The filter plate has a support spring plate at its top, which is arc-shaped. The elasticity of the spring plate pushes the filter plate downward, causing the sealing plug to re-engage into the vent, sealing the intake pipe. This process is repeated, causing the filter plate to vibrate repeatedly, thus shaking off impurities from the filter plate surface and maintaining and improving its filtration performance. This solves the problem of short service life of existing filter plates.
Smart Images

Figure CN224640694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic film technology, and in particular to an environmentally friendly adsorption box for polyethylene plastic film. Background Technology
[0002] Plastic films are made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins. They are used for packaging and as a coating layer. In the existing production process of polyethylene plastic films, an adsorption box is required to treat the gas.
[0003] A search revealed Chinese Patent CN221085031U, which discloses an environmentally friendly adsorption box for polyethylene plastic film production, belonging to the field of plastic film technology. The box includes a water tank, with a box body fixedly connected to its upper surface. A sleeve is fixedly embedded in the upper surface of the water tank, and a limiting ring is fixedly connected to the inner wall of the sleeve. A filter screen is placed on the upper surface of the limiting ring. This environmentally friendly adsorption box for polyethylene plastic film production utilizes a crank handle and rolling bearings to facilitate the rotation of a secondary gear driven by a drive gear. Simultaneously, the secondary gear drives a threaded rod to rotate within the pressure bearing and sealing bearing. The movement of the threaded cylinder on the surface of the threaded rod allows a connecting plate to move a pressure cylinder out of or into the sleeve, thus releasing the filter screen and facilitating its replacement. The operation is simple and convenient, solving the problems of time-consuming, labor-intensive, and inconvenient filter screen replacement methods.
[0004] In the aforementioned existing technical solutions, exhaust gas is filtered through a filter screen. However, in actual use, the side of the filter screen that comes into contact with the exhaust gas is easily clogged after a long period of use, resulting in a significant decrease in filtration efficiency, an increase in the frequency of maintenance and replacement, and a shortened overall service life. Utility Model Content
[0005] To address the aforementioned technical problems, this invention proposes an environmentally friendly adsorption box for polyethylene plastic film. External waste gas is introduced into the inlet pipe. As the internal air pressure increases, it pushes the vent outward, separating the sealing plug from the vent. The waste gas then exits through the gap between the sealing plug and the vent. Finally, the waste gas is filtered by a filter plate. The elasticity of the supporting spring plate pushes the filter plate downward, causing the sealing plug to re-engage into the vent, sealing the inlet pipe. This process is repeated, causing the filter plate to vibrate repeatedly, thus shaking off impurities from the filter plate surface and maintaining and improving its filtration performance.
[0006] The technical solution to achieve the purpose of this utility model is: an environmentally friendly adsorption box for polyethylene plastic film, including a treatment box, wherein a filter assembly is provided on the top of the treatment box, and the filter assembly includes:
[0007] A filter box, which is fixedly installed on the top wall of the treatment box, and the bottom end of the filter box is connected to the interior of the treatment box;
[0008] The guide plate consists of two plates, which are fixedly installed on the inner side wall of the filter box. The guide plates are distributed at an angle, and support spring plates are fixedly installed on the side walls of the two guide plates. The support spring plates protrude towards the bottom.
[0009] The filter plate is disposed inside the filter box and is located at the bottom end of the supporting elastic plate;
[0010] The processing box is equipped with a drive assembly, which includes:
[0011] An air intake pipe is fixedly installed on the side wall of the processing box. Multiple air vents are provided on the side wall of the air intake pipe, and a sealing plug is slidably installed inside each of the multiple air vents.
[0012] The positioning plate is slidably installed inside the processing box. Multiple vents are fixedly installed on the bottom wall of the positioning plate. A connecting rod is fixedly installed on the top wall of the positioning plate, and the top of the connecting rod is attached to the bottom wall of the filter plate.
[0013] In some embodiments, one end of the intake pipe is connected to an external exhaust end, and the other end of the intake pipe is sealed.
[0014] In some embodiments, a sealing door is rotatably mounted on the side wall of the filter box, and an exhaust pipe is fixedly mounted on the top wall of the filter box. The exhaust pipe communicates with the interior of the filter box, and the near ends of the two guide plates are aligned with the inner side wall of the exhaust pipe.
[0015] In some embodiments, a water inlet pipe is fixedly installed at the top of the side wall of the treatment tank, and the water inlet pipe is connected to an external water source. A drain pipe is fixedly installed at the bottom of the side wall of the treatment tank, and a valve is provided on the side wall of the drain pipe.
[0016] In some embodiments, two flow-limiting plates are fixedly installed on the inner sidewall of the processing box. The tops of the two flow-limiting plates are attached to the bottom wall of the filter plate, and the flow-limiting plates are distributed in an inclined manner.
[0017] Compared with the prior art, the significant advantages of this utility model are:
[0018] Firstly, this invention introduces external exhaust gas into the intake pipe. Since one end of the intake pipe is sealed, as the internal air pressure increases, it pushes the vent outward, separating the sealing plug from the vent. The exhaust gas then escapes through the gap between the sealing plug and the vent. Finally, the exhaust gas is filtered by a filter plate, and the filtered gas is discharged through an exhaust pipe. The filter plate has a support spring plate at its top, which is arc-shaped. The elasticity of the spring plate pushes the filter plate downward, causing the sealing plug to re-engage into the vent, sealing the intake pipe. This process is repeated, causing the filter plate to vibrate repeatedly, thus shaking off impurities from the filter plate surface and maintaining and improving its filtration performance. This solves the problem of short service life of existing filter plates.
[0019] Secondly, in this invention, external water is injected into the treatment tank through the water inlet pipe. When the exhaust gas inside the air inlet pipe flows into the treatment tank, the water inside the treatment tank performs preliminary filtration of the exhaust gas. After the exhaust gas is discharged through the air between the sealing plug and the vent, the positioning plate will immediately fall. When the positioning plate falls, it will come into contact with the discharged exhaust gas, scattering the exhaust gas and preventing the exhaust gas from forming large air bubbles inside the water, which would affect the filtration effect of the water inside the treatment tank. By opening the valve on the drain pipe, the wastewater inside the treatment tank can be discharged to the outside. Attached Figure Description
[0020] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the processing box of this utility model;
[0023] Figure 3 This is a three-dimensional cross-sectional view of the air intake pipe of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Processing box; 2. Filter box; 3. Sealing door; 4. Exhaust pipe; 5. Air inlet pipe; 6. Water inlet pipe; 7. Drain pipe; 8. Vent hole; 9. Positioning plate; 10. Sealing plug; 11. Connecting rod; 12. Filter plate; 13. Guide plate; 14. Support spring plate; 15. Flow limiting plate. Detailed Implementation
[0026] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0027] This utility model provides an environmentally friendly adsorption box for polyethylene plastic film through improvements. The technical solution of this utility model is as follows:
[0028] like Figures 1-3 As shown, an environmentally friendly adsorption box for polyethylene plastic film includes a treatment box 1, and a filter assembly is provided on the top of the treatment box 1. The filter assembly includes a filter box 2, a guide plate 13 and a filter plate 12.
[0029] The filter box 2 is fixedly installed on the top wall of the treatment box 1. The bottom end of the filter box 2 is connected to the interior of the treatment box 1. A sealing door 3 is rotatably installed on the side wall of the filter box 2. An exhaust pipe 4 is fixedly installed on the top wall of the filter box 2 and is connected to the interior of the filter box 2.
[0030] There are two guide plates 13. The two guide plates 13 are fixedly installed on the inner side wall of the filter box 2. The guide plates 13 are distributed in an inclined manner. The near end of the two guide plates 13 is aligned with the inner side wall of the exhaust pipe 4. Support spring plates 14 are fixedly installed on the side walls of the two guide plates 13. The support spring plates 14 protrude towards the bottom.
[0031] The filter plate 12 is disposed inside the filter box 2, and the filter plate 12 is located at the bottom end of the support spring plate 14;
[0032] The processing box 1 is equipped with a drive assembly, which includes an air intake pipe 5 and a positioning plate 9.
[0033] The intake pipe 5 is fixedly installed on the side wall of the processing box 1. One end of the intake pipe 5 is connected to the external exhaust end, and the other end of the intake pipe 5 is sealed. Multiple ventilation holes 8 are opened on the side wall of the intake pipe 5, and sealing plugs 10 are slidably installed inside the multiple ventilation holes 8.
[0034] The positioning plate 9 is slidably installed inside the treatment box 1. Multiple vent holes 8 are fixedly installed on the bottom wall of the positioning plate 9. A connecting rod 11 is fixedly installed on the top wall of the positioning plate 9, and the top end of the connecting rod 11 is in contact with the bottom wall of the filter plate 12. By sending external exhaust gas into the interior of the intake pipe 5, since one end of the intake pipe 5 is sealed, as the air pressure inside the intake pipe 5 increases, the air pressure inside the intake pipe 5 will push the vent holes 8 outward, and the sealing plug 10 will separate from the vent holes 8. The exhaust gas inside the intake pipe 5 passes through the sealing plug 10. The gas is discharged outward through the gap between the vent 8 and the air vent 0. Finally, the gas is filtered by the filter plate 12. The filtered gas is discharged outward through the exhaust pipe 4. Since there is a support spring plate 14 at the top of the filter plate 12, the support spring plate 14 is arc-shaped. The elasticity of the support spring plate 14 will push the filter plate 12 downward, so that the sealing plug 10 will be re-inserted into the air vent 8 to seal the air inlet pipe 5. This process is repeated, causing the filter plate 12 to vibrate repeatedly. As a result, the impurities on the surface of the filter plate 12 are shaken off, so as to maintain and improve the filtration performance of the filter plate 12.
[0035] like Figures 1-3 As shown, in this embodiment, a water inlet pipe 6 is fixedly installed at the top of the side wall of the treatment box 1, and the water inlet pipe 6 is connected to an external water source. A drain pipe 7 is fixedly installed at the bottom of the side wall of the treatment box 1, and a valve is provided on the side wall of the drain pipe 7. External water is injected into the interior of the treatment box 1 through the water inlet pipe 6. When the exhaust gas inside the air inlet pipe 5 flows into the interior of the treatment box 1, the exhaust gas is initially filtered by the water inside the treatment box 1. After the exhaust gas is discharged through the air between the sealing plug 10 and the vent 8, the positioning plate 9 will immediately fall down. When the positioning plate 9 falls, it will contact the discharged exhaust gas and scatter the exhaust gas. To prevent the formation of large bubbles in the water inside the treatment tank 1, which would affect the filtration effect of the water inside the treatment tank 1, the wastewater inside the treatment tank 1 can be discharged outward by opening the valve on the drain pipe 7. Two flow-limiting plates 15 are fixedly installed on the inner side wall of the treatment tank 1. The tops of the two flow-limiting plates 15 are attached to the bottom wall of the filter plate 12, and the flow-limiting plates 15 are distributed in an inclined manner. The flow-limiting plates 15 guide the upward flow of waste gas, so that the waste gas can be fully filtered by the filter plate 12. At the same time, the flow-limiting plates 15 support the bottom of the filter plate 12 and limit the range of motion of the filter plate 12.
[0036] The specific working method is as follows: external exhaust gas is sent into the interior of the intake pipe 5. Since one end of the intake pipe 5 is sealed, as the air pressure inside the intake pipe 5 increases, the air pressure inside the intake pipe 5 will push the vent 8 outward, and the sealing plug 10 will separate from the vent 8. The exhaust gas inside the intake pipe 5 will be discharged outward through the gap between the sealing plug 10 and the vent 8. Finally, the exhaust gas is filtered by the filter plate 12. The filtered gas is discharged outward through the exhaust pipe 4. Since the top of the filter plate 12 has a support spring plate 14, which is arc-shaped, the elasticity of the support spring plate 14 will push the filter plate 12 downward, so that the sealing plug 10 will be re-engaged into the interior of the vent 8 to seal the intake pipe 5. This process is repeated, causing the filter plate 12 to vibrate repeatedly. As a result, the impurities on the surface of the filter plate 12 are shaken off, thereby maintaining and improving the filtration performance of the filter plate 12.
[0037] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. An environmentally friendly adsorption box for polyethylene plastic film, comprising a processing box (1), characterized in that: A filter assembly is provided on the top of the processing box (1), and the filter assembly includes: Filter box (2), the filter box (2) is fixedly installed on the top wall of the treatment box (1), and the bottom end of the filter box (2) is connected to the interior of the treatment box (1); There are two guide plates (13). The two guide plates (13) are fixedly installed on the inner side wall of the filter box (2). The guide plates (13) are distributed in an inclined manner. Support spring plates (14) are fixedly installed on the side walls of the two guide plates (13). The support spring plates (14) protrude towards the bottom. Filter plate (12), the filter plate (12) is disposed inside the filter box (2), and the filter plate (12) is located at the bottom end of the support spring plate (14); The processing box (1) is equipped with a drive component, which includes: An air inlet pipe (5) is fixedly installed on the side wall of the processing box (1). Multiple air vents (8) are provided on the side wall of the air inlet pipe (5). A sealing plug (10) is slidably installed inside each of the multiple air vents (8). Positioning plate (9) is slidably installed inside the processing box (1). Multiple ventilation holes (8) are fixedly installed on the bottom wall of the positioning plate (9). A connecting rod (11) is fixedly installed on the top wall of the positioning plate (9). The top end of the connecting rod (11) is attached to the bottom wall of the filter plate (12).
2. The environmentally friendly adsorption box for polyethylene plastic film according to claim 1, characterized in that: One end of the intake pipe (5) is connected to the external exhaust end, and the other end of the intake pipe (5) is sealed.
3. The environmentally friendly adsorption box for polyethylene plastic film according to claim 1, characterized in that: A sealing door (3) is rotatably installed on the side wall of the filter box (2), and an exhaust pipe (4) is fixedly installed on the top wall of the filter box (2). The exhaust pipe (4) is connected to the interior of the filter box (2), and the two guide plates (13) are aligned with the inner side wall of the exhaust pipe (4).
4. An environmentally friendly adsorption box for polyethylene plastic film according to any one of claims 1-3, characterized in that: A water inlet pipe (6) is fixedly installed at the top of the side wall of the treatment box (1), and the water inlet pipe (6) is connected to an external water source. A drain pipe (7) is fixedly installed at the bottom of the side wall of the treatment box (1), and a valve is provided on the side wall of the drain pipe (7).
5. An environmentally friendly adsorption box for polyethylene plastic film according to claim 1, characterized in that: Two flow-limiting plates (15) are fixedly installed on the inner side wall of the treatment box (1). The top of the two flow-limiting plates (15) are attached to the bottom wall of the filter plate (12), and the flow-limiting plates (15) are distributed in an inclined manner.
Citation Information
Patent Citations
Environment-friendly adsorption box for polyethylene plastic film production
CN221085031U