Impurity separation device for regenerated polyester particles
By introducing an electric push rod to drive the separation tank and cleaning brush in the recycled polyester particle separation device, the problems of easy clogging of the filter screen and inconvenience of disassembling and assembling the collection chamber are solved, achieving efficient impurity separation and convenient cleaning process.
Patent Information
- Application Number
- CN202520475180.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-18
AI Technical Summary
In existing particle separation and impurity removal devices for recycled plastic production, the filter screen is prone to clogging and is not easy to clean, and the collection chamber is not easy to disassemble and assemble, resulting in low separation efficiency and difficulty in removing impurities.
An impurity separation device for recycled polyester granules was designed, comprising a separation component and a collection component. The separation barrel is driven to move up and down by an electric push rod, and impurities are cleaned from the filter plate by a cleaning brush. The collection barrel is easily disassembled and the impurities are poured out by a threaded connection.
It improves the separation efficiency of recycled polyester particles and impurities, simplifies the filter plate cleaning and impurity collection process, and enhances the overall separation effect and convenience.
Smart Images

Figure CN223933953U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of recycled polyester particle screening technology, and in particular relates to an impurity separation device for recycled polyester particles. Background Technology
[0002] With the increasing consumption of plastic products, the amount of waste plastic is constantly increasing, making the treatment of waste plastic very important. In the process of waste plastic treatment, crushers are used to crush the waste plastic, and then the crushed plastic is used to produce recycled polyester granules. However, impurities will appear in the crushed plastic, so a particle separation and impurity removal device is needed to remove impurities from the recycled polyester granules.
[0003] A search revealed a particle separation and impurity removal device for recycled plastic production disclosed in patent document CN213766687U, but it still has the following drawbacks in practical use:
[0004] 1. The aforementioned particle separation and impurity removal device for recycled plastic production disclosed in patent document CN213766687U has a first filter screen installed at the lower part of the first collection chamber, allowing impurities to pass through the first filter screen into the interior of the first collection chamber and preventing recycled polyester particles from entering the interior of the first collection chamber. A second filter screen is installed at the upper part of the second collection chamber, similarly achieving the separation of recycled polyester particles from impurities. However, when separating impurities from recycled polyester particles, impurities may clog the first and second filter screens, and it is not convenient to clean the clogged impurities on the first and second filter screens, thereby reducing the separation effect and efficiency of recycled polyester particles from impurities.
[0005] 2. The aforementioned particle separation and impurity removal device for recycled plastic production disclosed in patent document CN213766687U has a first collection chamber and a second collection chamber inside the box, and the first collection chamber and the second collection chamber are used to collect impurities. However, the first collection chamber and the second collection chamber are not easy to disassemble and assemble, which makes it inconvenient to clean the impurities.
[0006] To address these issues, we provide an impurity separation device for recycled polyester particles. Utility Model Content
[0007] The purpose of this utility model is to provide an impurity separation device for recycled polyester particles. By setting a separation component, it is convenient to clean the clogging impurities on the separation filter plate, thereby improving the efficiency of separating recycled polyester particles from impurities. In addition, a collection component is set to facilitate the disassembly and assembly of the collection bucket, thereby facilitating the cleaning of the collected impurities. This solves the technical problem mentioned in the background art of the particle separation and impurity removal device for recycled plastic production disclosed in the patent document with patent publication number CN213766687U.
[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0009] This utility model relates to an impurity separation device for recycled polyester granules, comprising an outer barrel, a separation assembly disposed above the outer barrel, the separation assembly including a separation barrel movably disposed inside the outer barrel, an electric push rod connected to the upper surface of a mounting plate connected to the outer side of the outer barrel, a connecting plate connected to the upper end of the piston rod at the telescopic end of the electric push rod, and the connecting plate being connected to the upper surface of the separation barrel, a cleaning brush overlapping the upper surface of a separation filter plate connected to the lower inner circumference of the separation barrel, a motor connected to the upper end of a vertically connected rotating shaft in the middle of the upper surface of the cleaning brush, and a collection assembly disposed below the outer barrel, the collection assembly including a collection barrel having an external thread on the upper outer circumference, an internal thread on the lower inner circumference of the outer barrel being threadedly connected to the external thread, and the collection barrel being located below the separation filter plate, the collection barrel having a fixed protrusion in the middle of its lower surface.
[0010] The present invention is further configured such that the lower part of the outer periphery of the outer barrel has fixed support legs, and the three support legs are arranged in a circular array.
[0011] The present invention is further configured such that a protective cover is fitted around the motor, and a mounting frame connected to the upper surface of the protective cover is connected to the separation bucket.
[0012] The present invention is further configured such that the protective cover has air holes on its periphery, and the mounting frame has an inverted U-shaped cross-section.
[0013] The present invention is further configured such that three electric push rods are provided, and the three electric push rods are arranged in a circular array.
[0014] The present invention is further configured such that the outer periphery of the separating barrel has a sliding groove arranged in a ring array, and the sliding rod slidably connected inside the sliding groove is connected to the inner side wall of the outer barrel.
[0015] The present invention is further configured such that the upper surface of the slide rod is flush with the upper surface of the outer barrel, and the length of the slide rod is half the internal depth of the outer barrel, and the length of the chute is equal to the height of the separation barrel.
[0016] The present invention is further configured such that the lower end of the support column connected to the lower surface of the collection bucket has a connected roller, and the three support columns are arranged in a circular array.
[0017] This utility model has the following beneficial effects:
[0018] 1. This utility model, by setting up a separation component and starting an electric push rod, moves the separation barrel up and down, causing the recycled polyester particles inside the separation barrel to move. The recycled polyester particles are then screened by the separation filter plate, and impurities passing through the separation filter plate move downwards, thus achieving the separation of recycled polyester particles and impurities. Furthermore, starting a motor causes the shaft to rotate, and the cleaning brush rotates to clean the impurities on the separation filter plate, ensuring the screening efficiency of the separation filter plate and thereby improving the separation efficiency of recycled polyester particles and impurities.
[0019] 2. This utility model, by setting up a collection component, allows the separated impurities to fall downwards into the inside of the collection bucket. By rotating the collection bucket, the external thread and internal thread are separated, and the collection bucket can be removed from the separation bucket. The impurities inside the collection bucket can then be poured out. Conversely, the collection bucket can be connected to the lower surface of the separation bucket, thus facilitating the assembly and disassembly of the collection bucket.
[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0022] Figure 1 A three-dimensional schematic diagram of an impurity separation device for recycled polyester granules. Figure 1 ;
[0023] Figure 2 A three-dimensional schematic diagram of an impurity separation device for recycled polyester granules. Figure 2 ;
[0024] Figure 3 This is a schematic diagram showing the connection between the outer tank and the separation tank;
[0025] Figure 4 A schematic diagram showing the connection between the separation tank, motor, rotating shaft, and cleaning brush;
[0026] Figure 5 This is a breakdown diagram of the outer bucket and the collection bucket.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1-Outer barrel, 101-Foot support, 102-Internal thread, 2-Separation assembly, 201-Separation barrel, 201a-Slide groove, 201b-Slide rod, 202-Hosting plate, 202a-Electric push rod, 202b-Connecting plate, 203-Hosting frame, 204-Protective cover, 205-Rotating shaft, 205a-Cleaning brush, 205b-Motor, 206-Separation filter plate, 3-Collection assembly, 301-Collection barrel, 301a-Protruding handle, 301b-External thread, 302-Support column, 302a-Roller. Detailed Implementation
[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1
[0031] Please see Figure 1 , Figure 2 and Figure 5 This utility model is an impurity separation device for recycled polyester granules, including an outer barrel 1 and a support leg 101. The support leg 101 is provided so that there is a gap between the lower part of the outer barrel 1 and the ground, which facilitates the disassembly and assembly of the components below the outer barrel 1.
[0032] Specifically, the lower part of the outer periphery of the outer barrel 1 has a fixed support leg 101, and the lower part of the inner periphery of the outer barrel 1 has an internal thread 102.
[0033] Furthermore, the legs 101 are arranged in a circular array;
[0034] The operation process in this embodiment is as follows: use screws to lock the support leg 101 at the position where the recycled polyester particles are separated from impurities, thereby limiting the position of the outer barrel 1.
[0035] Example 2
[0036] Please see Figure 1 , Figure 3 and Figure 4Based on the first specific embodiment, a separation component 2 is provided. The separation component 2 includes a separation barrel 201, a mounting plate 202, an electric push rod 202a, a mounting frame 203, a rotating shaft 205, a cleaning brush 205a, a motor 205b, and a separation filter plate 206. By controlling the electric push rod 202a, the separation barrel 201 moves up and down reciprocally, and in conjunction with the separation filter plate 206, the recycled polyester particles are separated from impurities. By controlling the motor 205b, the cleaning brush 205a rotates to clean the blockages on the separation filter plate 206, which helps to accelerate the screening efficiency of impurities.
[0037] Specifically, the separating barrel 201 is rotatably connected to the inside of the outer barrel 1, and a sliding groove 201a is provided on the outer periphery of the separating barrel 201. A sliding rod 201b, which is slidably connected inside the sliding groove 201a, is connected to the inner periphery of the outer barrel 1. The mounting plate 202 is connected to the outer periphery of the outer barrel 1, and an electric push rod 202a is connected to the mounting plate 202. A connecting plate 202b is connected to the piston rod at the telescopic end of the electric push rod 202a, and the connecting plate 202b is connected to the separating barrel. On the upper surface of 201, the mounting frame 203 is connected to the separation tank 201, and the inner top of the mounting frame 203 has a connected protective cover 204. Inside the protective cover 204, there is a connected motor 205b. The output end of the motor 205b has a vertically connected rotating shaft 205. The lower end of the rotating shaft 205 has a connected cleaning brush 205a. The separation filter plate 206 is sleeved on the lower part of the inner circumference of the separation tank 201, and the cleaning brush 205a is placed on the separation filter plate 206.
[0038] Furthermore, three chute 201a are arranged in a circular array, three mounting plates 202 are arranged in a circular array, and air holes are provided on the periphery of the protective cover 204.
[0039] The operation process of this embodiment is as follows: Start the electric push rod 202a, which extends or retracts, causing the separation barrel 201 to move up and down reciprocally, and the separation filter plate 206 to move up and down reciprocally, separating the recycled polyester particles and impurities inside the separation barrel 201. The impurities pass through the separation filter plate 206 and fall downwards, while the recycled polyester particles remain inside the separation barrel 201. Start the motor 205b, which rotates the shaft 205 and causes the cleaning brush 205a to rotate, cleaning the blockages on the separation filter plate 206.
[0040] Example 3
[0041] Please see Figure 1 , Figure 2 and Figure 5Based on specific embodiment one and specific embodiment two, a collection component 3 is provided. The collection component 3 includes a collection bucket 301, a protruding handle 301a, a support column 302 and a roller 302a. The collection bucket 301 is used to collect the separated impurities, and by rotating the collection bucket 301, the separation bucket 1 and the collection bucket 301 can be disassembled and assembled, thereby facilitating the cleaning of impurities inside the collection bucket 301.
[0042] Specifically, the collection bucket 301 is located below the outer bucket 1, and the upper part of the outer periphery of the collection bucket 301 has an external thread 301b, which is threadedly connected to the internal thread 102. The protrusion 301a is fixed to the middle of the lower surface of the collection bucket 301, and the lower surface of the collection bucket 301 has a connecting support column 302, and the roller 302a is connected to the lower end of the support column 302.
[0043] Furthermore, the three supports 302 are arranged in a ring array, and the lengths of the external thread 301b and the internal thread 102 are equal;
[0044] The operation process of this embodiment is as follows: the impurities falling downwards enter the interior of the collection bucket 301; rotate the convex handle 301a clockwise, the external thread 301b moves out of the interior thread 102, the collection bucket 301 is disassembled, the collection bucket 301 is pushed, the roller 302a moves, and the collection bucket 301 is pushed to the position to pour out the impurities; conversely, the cleaned collection bucket 301 is connected to the lower surface of the outer bucket 1.
[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. An impurity separation device for recycled polyester granules, comprising an outer barrel (1), characterized in that: A separation assembly (2) is provided above the outer barrel (1). The separation assembly (2) includes a separation barrel (201) movably disposed inside the outer barrel (1). An electric push rod (202a) is connected to the upper surface of the mounting plate (202) connected to the outer side of the outer barrel (1). A connecting plate (202b) is connected to the upper end of the piston rod at the telescopic end of the electric push rod (202a). The connecting plate (202b) is connected to the upper surface of the separation barrel (201). A cleaning brush (205a) is overlapped on the upper surface of the separation filter plate (206) connected to the lower inner circumference of the separation barrel (201). A motor (205b) is connected to the upper end of the vertically connected rotating shaft (205) in the middle of the upper surface of the cleaning brush (205a). Below the outer barrel (1) is a collection assembly (3). The upper part of the outer periphery of the collection barrel (301) included in the collection assembly (3) has an external thread (301b). The lower part of the inner periphery of the outer barrel (1) has an internal thread (102) that is threaded to the external thread (301b). The collection barrel (301) is located below the separation filter plate (206). The lower surface of the collection barrel (301) has a fixed protrusion (301a).
2. The impurity separation device for recycled polyester particles according to claim 1, characterized in that: The lower part of the outer periphery of the outer barrel (1) has fixed support legs (101), and the three support legs (101) are arranged in a ring array.
3. The impurity separation device for recycled polyester particles according to claim 1, characterized in that: The motor (205b) has a protective cover (204) around its periphery, and the mounting bracket (203) connected to the upper surface of the protective cover (204) is connected to the separation bucket (201).
4. The impurity separation device for recycled polyester granules according to claim 3, characterized in that: The protective cover (204) has air holes on its periphery, and the mounting frame (203) has an inverted U-shaped cross-section.
5. The impurity separation device for recycled polyester granules according to claim 1, characterized in that: Three electric actuators (202a) are provided, and the three electric actuators (202a) are arranged in a circular array.
6. The impurity separation device for recycled polyester granules according to claim 1, characterized in that: The outer periphery of the separation barrel (201) has a sliding groove (201a) arranged in a ring array, and the sliding rod (201b) inside the sliding groove (201a) is connected to the inner wall of the outer barrel (1).
7. The impurity separation device for recycled polyester particles according to claim 6, characterized in that: The upper surface of the slide bar (201b) is flush with the upper surface of the outer barrel (1), and the length of the slide bar (201b) is half the depth of the inner part of the outer barrel (1). The length of the chute (201a) is equal to the height of the separation barrel (201).
8. The impurity separation device for recycled polyester granules according to claim 1, characterized in that: The lower end of the support column (302) connected to the lower surface of the collection bucket (301) has a connected roller (302a), and the three support columns (302) are arranged in a circular array.
Citation Information
Patent Citations
Particle separation and impurity removal device for regenerated plastic production
CN213766687U