A plastic pipe cutting chip separation and recovery device for green irrigation

By designing a chip separation and recycling device for plastic pipes used in greening irrigation, impurities in the chips are automatically separated using a blower, magnetic suction, and extraction equipment. This solves the problem of chip recycling in PVC pipe production, improves the reuse rate, and reduces raw material loss.

CN224486278UActive Publication Date: 2026-07-14NINGXIA QINGLONG PLASTIC PIPES CO LTD
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Patent Information

Application Number
CN202521636140.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-04
Publication Date
2026-07-14
Estimated Expiration
2035-08-04

AI Technical Summary

Technical Problem

The chips generated during the production of PVC pipes contain many impurities that cannot be fully recycled, leading to waste of raw materials and damage to equipment.

Method used

Design a device for separating and recycling plastic pipe chips used for greening irrigation. The device uses a blower, a magnetic suction component, and a suction device to separate impurities from the chips. It includes a flotation component, a feeding component, a filtering component, and a magnetic suction component to achieve automatic separation of gravel particles, cotton yarn, and PVC chips.

Benefits of technology

It enables automatic separation of impurities in PVC chips, improves the recycling rate of PVC chips, reduces raw material loss and equipment damage, and simplifies manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the pipe production technical field, concretely relates to a kind of plastic pipe cutting chip separation recycling device for greening irrigation;Blow floating subassembly, the blow floating subassembly includes box, and the box one side is provided with air outlet, suction port and air supply port from top to bottom respectively, and the upper side of box is away from the end of air supply port and is equipped with feed inlet, and the fan with air supply port connection outer end has the air blowing of box interior, and suction port outer end is connected with suction equipment;Feeding assembly, the feeding assembly is set up in the box upper end and is communicated with feed inlet;Filtering component, the filtering component is set up in the air outlet outer end;Magnetic attraction subassembly, the magnetic attraction subassembly is set up in the box, and located the feed inlet below, for being adsorbed by magnetic attraction cutting;It can sort the cutting chip recycled in the manufacture of PVC pipe, and can separate out the impurities such as stone particle mixed in cutting chip, metal scrap and cotton yarn etc.
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Description

Technical Field

[0001] This utility model belongs to the field of pipe manufacturing technology, specifically relating to a device for separating and recycling plastic pipe chips used for greening irrigation. Background Technology

[0002] During the production of PVC pipes, the cutting, polishing, and grinding processes generate shavings. These PVC shavings are difficult to recycle because most end up on the ground or inside equipment. Cleaning and collecting the shavings often introduces foreign matter from the surrounding environment, such as gravel particles, heavy metal objects, cotton yarn (the lightest), and PVC pipe shavings (medium weight). Therefore, due to the high impurity content, the collected shavings are generally sold as waste at a low price, resulting in waste and reduced utilization value. Recycling PVC shavings for reuse can save on PVC raw materials.

[0003] However, PVC pipe chips are lightweight. If recycled together with waste pipes, they will be suspended when entering the grinding mill, and the feeding system will not be able to handle them, which can easily lead to bridging and unstable feeding. In addition, there are many impurities in the chips. If manual screening and sorting is used during the production process, the workload is large and the impurities are slow to be cleaned. If the impurities are not thoroughly searched in the chips, it is easy for unremoved gravel particles and metal foreign objects to enter the grinding mill, resulting in damage to the grinding mill blades and equipment. Summary of the Invention

[0004] Based on this, this application provides a device for separating and recycling plastic pipe chips used for greening irrigation, in order to solve the technical problem that the chips generated during the production process of PVC pipes contain a lot of impurities and cannot be fully recycled in the prior art.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows:

[0006] A device for separating and recycling plastic pipe scraps used for greening irrigation includes:

[0007] The blowing and floating assembly includes a box body. An air outlet, a suction port, and an air supply port are respectively arranged on one side of the box body from top to bottom. A feed port is opened at the upper side of the box body away from the air supply port. A fan that blows air into the box body is connected to the outer end of the air supply port. Suction devices are respectively connected to the outer ends of the suction port and the air outlet.

[0008] A feeding assembly is disposed at the upper end of the housing and communicates with the inlet.

[0009] A filter assembly is disposed at the outer end of the air outlet;

[0010] A magnetic suction component is disposed inside the housing and located below the feed inlet, for adsorbing the material to be magnetically cut.

[0011] Preferably, the feeding assembly includes a vibrating part for causing the feeding assembly to vibrate.

[0012] Preferably, the system further includes a cleaning assembly, which includes a telescopic rod connected to the rear end of the housing. An opening is provided on the front side of the housing. A push plate is connected to the movable end of the telescopic rod, and a baffle for sealing the opening is connected to the front end of the push plate.

[0013] Preferably, the blowing assembly further includes an upper partition and a lower partition connected to the inner wall of the box, with the upper partition located between the air outlet and the suction port, and the lower partition located between the suction port and the air supply port.

[0014] Preferably, a filter screen is provided inside the air supply port, and an inclined plate is provided at the bottom of the box away from the air supply port.

[0015] Preferably, the feeding assembly further includes a hopper, which has an inverted conical structure and its bottom end is connected to the feed inlet, and a screen is provided in the hopper.

[0016] Preferably, the vibrating part includes a motor connected to the housing and a disc connected to the output shaft of the motor. A plurality of elastic rods are circumferentially connected to the outer side of the disc, and the ends of the elastic rods are connected to a ball that can contact the outer wall of the hopper.

[0017] Preferably, the magnetic suction assembly includes a base plate and a magnet connected to the base plate. The base plate is inclined in the housing towards the side away from the air supply port, and the extension direction of the base plate is perpendicular to the air supply port. The magnet is located below the feed inlet.

[0018] Preferably, the front side of the box has an opening, and a groove is formed on the inner wall of the box. The groove is aligned with the opening, and the bottom plate slides in contact with the groove.

[0019] Preferably, the filter assembly includes a filter cover, which is detachably connected to the outer end of the air outlet.

[0020] Compared with the prior art, this application has at least the following advantages:

[0021] This application provides a device for separating and recycling plastic pipe chips used in greening irrigation. A blower blows air into the housing through an air inlet. The air entering the housing flows from bottom to top. A feeding component guides the chips into the inlet. After passing through the inlet, the chips fall. When the chips fall onto a magnetic suction component, the magnetic suction component can attract impurities such as iron filings. Meanwhile, gravel, cotton yarn, and PVC pipe chips continue to fall. When these materials enter the upward airflow, the heavier gravel is not affected by the wind and falls directly to the bottom of the housing. The lightest cotton yarn is blown to the top of the housing and sucked out from the air outlet. Compared to gravel and cotton yarn, PVC chips weigh between the two. This means that when air acts on the PVC chips, they will be suspended in the middle of the chamber. At this point, the suction device will draw the PVC chips out through the suction port in the middle of the chamber. This process can sort the chips recycled during the PVC pipe manufacturing process, separating impurities such as gravel, magnetically attracted metal shavings, and cotton yarn. This automatic separation allows the PVC chips to be reused after further processing, reducing raw material loss in PVC pipe production, saving raw materials, and minimizing losses. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the plastic pipe chip separation and recycling device for greening irrigation in this application;

[0023] Figure 2 This is a schematic diagram of the plastic pipe chip separation and recycling device for greening irrigation in this application from another direction;

[0024] Figure 3 This is a schematic diagram of the internal structure of the box in this application;

[0025] Figure 4 This is a schematic diagram of the chute structure of this application;

[0026] Figure 5 This is a schematic diagram of the push plate structure of this application;

[0027] Figure 6 This is a schematic diagram of the structure of the base plate of this application;

[0028] Figure 7 This is a schematic diagram of the filter cover structure of this application;

[0029] Figure 8 This is a schematic diagram of the elastic rod in this application.

[0030] In the diagram: 101 housing; 102 upper partition; 103 lower partition; 104 inclined plate; 105 filter screen; 106 air supply port; 107 suction port; 108 air outlet; 109 pin; 110 feed inlet; 111 port; 112 slide rail; 113 magnet; 114 bottom plate; 201 opening; 202 telescopic rod; 203 push plate; 204 baffle; 301 motor; 302 disc; 303 elastic rod; 304 sphere; 305 hopper; 401 filter cover. Detailed Implementation

[0031] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0032] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please refer to Figures 1 to 8 In one specific embodiment of this application,

[0035] A device for separating and recycling plastic pipe scraps used for greening irrigation includes:

[0036] The blowing and floating assembly includes a housing 101. An air outlet 108, a suction port 107, and an air supply port 106 are respectively provided on one side of the housing 101 from top to bottom. A feed inlet 110 is opened at the upper end of the housing 101 away from the air supply port 106. A fan that blows air into the housing 101 is connected to the outer end of the air supply port 106. Suction devices are respectively connected to the outer ends of the suction port 107 and the air outlet 108.

[0037] A feeding assembly is disposed at the upper end of the housing 101 and communicates with the inlet 110;

[0038] A filter assembly is disposed at the outer end of the air outlet 108;

[0039] A magnetic suction component is disposed inside the housing 101 and located below the feed inlet 110, and is used to attract the material to be magnetically cut.

[0040] in:

[0041] The suction device can be a vacuum pump or a fan that can extract the air from the housing 101 to the outside;

[0042] The feeding assembly can be a conveyor belt or a device for conveying cutting materials;

[0043] The filter assembly can be a filter cartridge or a filter screen;

[0044] The magnetic component can be a permanent magnet or an electromagnet.

[0045] During operation, the fan blowing air into the housing 101 is turned on, allowing air to flow into the housing 101 through the air supply port 106. The air entering the housing 101 flows upwards and towards the air outlet 108 and the suction port 107. Simultaneously, the suction device is activated, allowing air from inside the housing 101 to enter the suction device through the air outlet 108 and the suction port 107. Then, the chips are fed into the feeding assembly, which guides the chips into the feed inlet 110. After passing through the feed inlet 110, the chips fall. When the chips fall onto the magnetic suction assembly, the magnetic suction assembly can attract impurities such as iron filings, while gravel particles, cotton yarn, and PVC pipe cuttings continue to fall. When gravel, cotton yarn, and PVC pipe cuttings enter the upward-flowing airflow, the gravel, being heavier, will not be affected by the wind and will fall directly to the bottom of the housing 101. The cotton yarn, being the lightest, will be blown to the top of the internal space of the housing 101 and sucked out from the air outlet 108 by the suction device. Compared to gravel and cotton yarn, the weight of PVC chips is between the two. That is to say, after the wind acts on the PVC chips, the PVC chips will be suspended in the middle of the housing 101. At this time, because the suction device sucks out through the suction port 107 located in the middle, the PVC chips located in the middle of the housing 101 will be sucked out through the suction port 107.

[0046] The above method allows for the screening of PVC pipe manufacturing process scraps, separating impurities such as gravel particles, magnetically attracted metal shavings, and cotton yarn from the scraps. This automatic separation eliminates the need for manual screening and sorting, while also improving the recycling rate of PVC scraps. The scraps can be reused after further processing, reducing raw material loss in PVC pipe production, saving raw materials, and minimizing losses.

[0047] However, in actual use, when the feeding assembly conveys PVC chips to the feed inlet 110, there is a problem that the PVC chips get stuck in the feed inlet 110 and cannot fall smoothly, resulting in intermittent feeding and inability to feed continuously; therefore, in the technical solution of this application, the feeding assembly includes a vibration part for making the feeding assembly vibrate.

[0048] The vibrating part can be a vibrating motor or other device that can generate vibration. During use, the vibrating part can generate vibration and transmit the vibration to the feeding assembly, causing the PVC chips inside the feeding assembly to vibrate. When the PVC chips enter the feed inlet 110, the vibration can prevent the PVC chips from clogging in the feed inlet 110, avoid intermittent feeding, and allow the PVC chips to pass through the feed inlet 110 evenly and fall into the box 101 for sorting.

[0049] After sorting, the gravel particles that fall to the bottom of the box 101 and the metal shavings that cannot be attracted by the magnetic components also need to be cleaned out of the box 101. However, if this is done manually, the box 101 needs to be opened and the gravel particles and metal shavings that cannot be attracted by the magnetic components need to be cleaned out step by step. This is not only time-consuming and laborious, but also easy to leave unclean surfaces. Therefore, the technical solution in this application is preferred.

[0050] It also includes a cleaning component, which includes a telescopic rod 202 connected to the rear end of the housing 101. An opening 201 is provided on the front side of the housing 101. A push plate 203 is connected to the movable end of the telescopic rod 202. A baffle 204 for sealing the opening 201 is connected to the front end of the push plate 203.

[0051] When sorting PVC chips, the telescopic rod 202 is in the retracted state. At this time, the movable end of the telescopic rod 202 drives the push plate 203 to adhere to the rear inner wall of the bottom of the box 101, and the baffle 204 is fitted into the opening 201 to seal the opening 201. During sorting, the gravel particles and metal chips that cannot be attracted by the magnetic component will fall directly to the bottom of the box 101 and be located between the push plate 203 and the baffle 204. After sorting is completed, the fan stops blowing air, and the movable end of the telescopic rod 202 can be activated to drive the push plate 203 to move forward. During this process, the baffle 204 will also move forward and leave the opening 201. At this time, the opening 201 is open, and when the push plate 203 moves forward, it will push the gravel particles and metal chips that cannot be attracted by the magnetic component from the bottom of the box 101 out of the opening 201. The operator only needs to collect the gravel particles and metal chips that cannot be attracted by the magnetic component by placing a collection container below the opening 201.

[0052] The above method can automatically clean up the crushed stone particles and metal shavings that cannot be attracted by the magnetic components after sorting, eliminating the need for manual cleaning. Furthermore, the push plate 203 can push out all the crushed stone particles and metal shavings that cannot be attracted by the magnetic components from the bottom of the box 101 by contacting the side of the push plate 203 with the bottom and surrounding side walls of the box 101, thus thoroughly cleaning the bottom of the box 101.

[0053] After the blower blows air and separates different types of debris inside the housing 101 into layers, in order to improve the accuracy of extracting suspended PVC chips, the blowing assembly in this application further includes an upper partition 102 and a lower partition 103 connected to the inner wall of the housing 101. The upper partition 102 is located between the air outlet 108 and the suction port 107, and the lower partition 103 is located between the suction port 107 and the air supply port 106.

[0054] The lower partition 103 can restrict the air blown in by the fan in the horizontal direction, so that the air blows horizontally to the other side of the housing 101, and the air turns upward when it comes into contact with the other side of the housing 101. This can prevent the air blown in by the fan from disturbing the airflow around the suction port 107, thereby improving the accuracy of the suction port 107 for the PVC chips suspended in the middle, and allowing the PVC chips to enter the suction port 107 smoothly.

[0055] The upper partition 102 can also separate the PVC shavings and cotton yarn after the wind separates them, allowing the cotton yarn to flow from the upper side of the upper partition 102 to the air outlet 108. When the suction port 107 is suctioned, the upper partition 102 and the lower partition 103 restrict the suspended PVC shavings into the suction port 107, preventing the cotton yarn from entering below the upper partition 102 and being sucked out from the suction port 107.

[0056] When gravel particles and metal shavings that cannot be attracted by the magnetic components fall to the bottom of the housing 101, they gradually accumulate and approach the air supply port 106. This poses a problem that gravel particles and metal shavings that cannot be attracted by the magnetic components may enter the air supply port 106. Therefore, in this application...

[0057] A filter screen 105 is provided inside the air supply port 106, and an inclined plate 104 is provided at the bottom of the box body 101 away from the air supply port 106.

[0058] During use, the filter 105 can block gravel particles and metal shavings that cannot be attracted by the magnetic component from approaching the air supply port 106, thus preventing the gravel particles and metal shavings that cannot be attracted by the magnetic component from entering the air supply port 106 and causing blockage of the air intake channel.

[0059] Specifically, an embodiment of the feeding component in the above scheme is provided:

[0060] The feeding assembly also includes a hopper 305, which has an inverted conical structure and its bottom end is connected to the feed inlet 110. A screen is provided in the hopper 305.

[0061] After the shavings generated during the PVC pipe processing are collected, they are put into the hopper 305. The screen in the hopper 305 is used to perform preliminary screening of the shavings, so that the larger shavings are screened out, while the rest are guided into the feed inlet 110 by the inverted cone structure of the hopper 305. This ensures that the shavings of uniform particle size enter the box 101 for sorting, and prevents large PVC shavings from being unable to be blown up by the wind and falling to the bottom of the box 101.

[0062] Specifically, an embodiment of the vibrating part in the above scheme is provided:

[0063] The vibrating part includes a motor 301 connected to the housing 101 and a disc 302 connected to the output shaft of the motor 301. A plurality of elastic rods 303 are circumferentially connected to the outer side of the disc 302, and the ends of the elastic rods 303 are connected to a ball 304 that can contact the outer wall of the hopper 305.

[0064] After the collected chips are fed into the hopper 305, the motor 301 is started, causing the output shaft of the motor 301 to drive the disc 302 to rotate. When the disc 302 rotates, it will drive several elastic rods 303 to rotate around the axis of the output shaft. During this process, the elastic rods 303 will drive several balls 304 to hit the outer wall of the hopper 305 in turn, causing vibration. The elastic rods 303 can undergo elastic deformation. After the balls 304 hit the outer wall of the hopper 305, they undergo appropriate deformation, allowing the balls 304 to continue moving.

[0065] By means of the above method, the hopper 305 can accelerate the feeding speed of the chips by vibrating during feeding, so as to avoid the chips from clogging in the feed inlet 110. At the same time, when the screen vibrates, it can also prevent the chips from clogging on the screen, thereby improving the screening capacity and effect of the screen.

[0066] Specifically, an embodiment of the magnetic attraction component in the above scheme is provided:

[0067] The magnetic suction assembly includes a base plate 114 and a magnet 113 connected to the base plate 114. The base plate 114 is inclined in the housing 101 to the side away from the air supply port 106, and the extension direction of the base plate 114 is perpendicular to the air supply port 106. The magnet 113 is located below the feed inlet 110.

[0068] As the chips fall through the feed inlet 110, they land on the inclined magnet 113. The magnet 113 can attract the metal chips that can be attracted, while the rest continue to fall. In this way, the metal chips that can be attracted can be separated.

[0069] Meanwhile, the base plate 114 is tilted away from the air supply port 106, so that after the chips hit the magnet 113, they can be dispersed away from the air supply port 106. The impact force of the falling chips can be used to disperse the chips, preventing the chips from clumping together and being unable to be separated smoothly. At the same time, the chips continue to fall away from the air supply port 106, preventing the chips from falling into the air supply port 106 and causing blockage.

[0070] After the chips are separated, the metal debris adsorbed on the magnet 113 needs to be cleaned out. Therefore, in this application, the front side of the box 101 is provided with a port 111, and a groove 112 is formed on the inner wall of the box 101. The groove 112 is aligned with the port 111, and the bottom plate 114 slides in contact with the groove 112.

[0071] When sorting chips, the rear end of the base plate 114 is aligned with the port 111 and slid into the groove 112 until the rear end of the base plate 114 contacts the inner wall of the housing 101. This allows the metal fragments that can be attracted to the chips to be attracted to the slag. After sorting is completed, the base plate 114 is pulled out, which can bring out the magnet 113. Then the metal fragments attracted to the magnet 113 can be cleaned. The operation is simple, convenient and quick.

[0072] Specifically, an embodiment of the filtering component in the above scheme is provided:

[0073] The filter assembly includes a filter cover 401, which is detachably connected to the outer end of the air outlet 108.

[0074] A pin hole is vertically opened on the outer side of the air outlet 108, and a pin hole is also vertically opened on the open section of the filter cover 401. The open section of the filter cover 401 is fitted onto the outer end of the air outlet 108, and the pin holes are aligned. Then, the pin 109 is inserted into the pin hole to complete the connection between the filter cover 401 and the air outlet 108. The suction device is connected to the filter cover 401, so that the cotton yarn drawn from the housing 101 can be blocked by the filter cover 401, so that the cotton yarn is concentrated in the filter cover 401, preventing the cotton yarn from entering the air of the working environment and causing air pollution. The cotton yarn can be collected and processed uniformly. After collection, the cotton yarn in the filter cover 401 can be cleaned by pulling out the pin 109 and then removing the filter cover 401.

[0075] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A device for separating and recycling plastic pipe scraps used in greening irrigation, characterized in that, include: The blowing and floating assembly includes a box body. An air outlet, a suction port, and an air supply port are respectively arranged on one side of the box body from top to bottom. A feed port is opened at the upper side of the box body away from the air supply port. A fan that blows air into the box body is connected to the outer end of the air supply port. Suction devices are respectively connected to the outer ends of the suction port and the air outlet. A feeding assembly is disposed at the upper end of the housing and communicates with the inlet. A filter assembly is disposed at the outer end of the air outlet; A magnetic suction component is disposed inside the housing and located below the feed inlet, for adsorbing the material to be magnetically cut.

2. The greening irrigation plastic pipe chip separation and recycling device as described in claim 1, characterized in that, The feeding assembly includes a vibrating part for causing the feeding assembly to vibrate.

3. The greening irrigation plastic pipe chip separation and recycling device as described in claim 1, characterized in that, It also includes a cleaning component, which includes a telescopic rod connected to the rear end of the housing. An opening is provided on the front side of the housing. A push plate is connected to the movable end of the telescopic rod, and a baffle for sealing the opening is connected to the front end of the push plate.

4. The greening irrigation plastic pipe chip separation and recycling device as described in claim 1, characterized in that, The blowing assembly also includes an upper partition and a lower partition connected to the inner wall of the box. The upper partition is located between the air outlet and the suction port, and the lower partition is located between the suction port and the air supply port.

5. The greening irrigation plastic pipe chip separation and recycling device as described in claim 1, characterized in that, A filter screen is installed inside the air supply port, and an inclined plate is installed at the bottom of the box away from the air supply port.

6. The greening irrigation plastic pipe chip separation and recycling device as described in claim 2, characterized in that, The feeding assembly also includes a hopper, which has an inverted conical structure and its bottom end is connected to the feed inlet. A screen is installed in the hopper.

7. The greening irrigation plastic pipe chip separation and recycling device as described in claim 6, characterized in that, The vibrating part includes a motor connected to the housing and a disc connected to the output shaft of the motor. Several elastic rods are circumferentially connected to the outer side of the disc, and the ends of the elastic rods are connected to a ball that can contact the outer wall of the hopper.

8. The greening irrigation plastic pipe chip separation and recycling device as described in claim 1, characterized in that, The magnetic suction assembly includes a base plate and a magnet connected to the base plate. The base plate is inclined in the box to the side away from the air supply port, and the extension direction of the base plate is perpendicular to the air supply port. The magnet is located below the feed inlet.

9. The greening irrigation plastic pipe chip separation and recycling device as described in claim 8, characterized in that, The front side of the box has an opening, and a sliding groove is formed on the inner wall of the box. The sliding groove is aligned with the opening, and the bottom plate slides in contact with the sliding groove.

10. The greening irrigation plastic pipe chip separation and recycling device as described in claim 1, characterized in that, The filter assembly includes a filter cover, which is detachably connected to the outer end of the air outlet.