Device for separating micro-plastic pollutants in water
By introducing a filter bucket, filter cylinder, and cleaning scraper into the microplastic separation device in water, microplastics are separated by water flow impact and centrifugal force, which solves the problems of poor separation effect and inconvenient maintenance of existing devices, and achieves efficient microplastic separation and easy maintenance.
Patent Information
- Application Number
- CN202520251961.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing microplastic pollutant separation devices in water have simple structures, poor separation effect and time consumption, easy clogging of filters, low separation efficiency and inconvenient maintenance.
A device for separating microplastic pollutants in water was designed. It adopts a filter bucket and filter cylinder structure, combined with a stirring rod and a cleaning scraper. Microplastics are separated by water flow impact and centrifugal force. The cleaning scraper is used to prevent clogging, thereby improving separation efficiency and cleaning effect.
It improves the interception efficiency and separation effect of microplastics, reduces filter clogging, simplifies the maintenance process, and facilitates the disassembly and cleaning of the device.
Smart Images

Figure CN223766120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of separation devices, and in particular to a device for separating microplastic pollutants in water. Background Technology
[0002] Microplastics refer to plastic particles with a diameter of less than 5 millimeters. They are a major carrier of pollution and are known as PM2.5 in the ocean. Microplastic pollutant separation devices in water are equipment specifically designed to separate microplastic pollutants from water efficiently and accurately.
[0003] Existing microplastic pollutant separation devices in water have relatively simple structures and often use density separation methods for separation. The filtration structure is simple, making it difficult to capture a wide variety of complex microplastics. They have low adaptability, poor separation effect and are time-consuming. The filter screen is prone to clogging, affecting the water flow rate, resulting in low separation efficiency and inconvenient maintenance.
[0004] Therefore, in response to the problems of existing separation devices having a simple structure, poor separation effect, time consumption, easy clogging of the filter screen, low separation efficiency, and inconvenient maintenance, a microplastic pollutant separation device can be designed in water. A filter bucket is set up, and the water flow impact separates more microplastics of different particle sizes, which improves the interception efficiency of microplastics and improves the separation effect. The rotation of the filter cylinder generates centrifugal force, which improves the separation efficiency. The cleaning scraper scrapes the filter bucket to prevent clogging, improves the cleaning effect, and facilitates daily maintenance. Utility Model Content
[0005] In order to overcome the problems of existing separation devices, such as simple structure, poor separation effect and time consumption, easy clogging of filter screen, low separation efficiency and inconvenient maintenance.
[0006] The technical solution of this utility model is as follows: a microplastic pollutant separation device in water, including a separation tank; it also includes a cleaning scraper and a filter cylinder. A guide bucket is slidably connected to the middle of the inner wall of the separation tank, and a filter bucket is fixedly connected to the upper end of the guide bucket. A cleaning rod is rotatably connected to the upper end of the filter bucket, and a cleaning scraper is fixedly connected to the outer side of the cleaning rod. A filter cylinder is rotatably connected to the inside of the separation tank. A connecting cover is provided at the upper end of the separation tank, and a mixing tank is fixedly connected to the upper end of the connecting cover. A stirring rod is provided inside the mixing tank, and stirring blades are fixedly connected to the outer side of the stirring rod.
[0007] Preferably, water and density separation medium are added to the mixing tank in sequence. The stirring rod rotates, which drives the stirring blades to rotate and stir. After thorough stirring, the water after the reaction impacts the filter bucket. The filtered water flows into the filter cylinder along the guide bucket. The filter cylinder rotates and generates centrifugal force to filter again. The purified water is stored in the separation tank. After filtration, the cleaning rod rotates, which drives the cleaning scraper to rotate and scrape the filter bucket.
[0008] Preferably, a cleaning motor is fixedly connected to the upper end of the inner wall of the filter bucket, and the output shaft of the cleaning motor is fixedly connected to the lower end of the cleaning rod.
[0009] Preferably, two cleaning scrapers are symmetrically arranged at the left and right ends of the cleaning rod, with the lower end of the cleaning scraper adapted to the outer wall of the filter bucket, and a waste discharge pipe fixedly connected to the right end of the separation bucket.
[0010] Preferably, a rotating motor is fixedly connected to the lower end of the separation tank, the output shaft of the rotating motor is threadedly connected to the lower end of the filter cylinder, the inner wall of the filter cylinder is lined with fiber sponge, and an outlet pipe is fixedly connected to the front side of the lower end of the separation tank.
[0011] Preferably, the mixing tank is provided with a lid at the top, and a metering pump is fixedly connected to the front side of the lid. The metering pump is fixedly connected to the top of the feed pipe.
[0012] Preferably, a stirring motor is fixedly connected to the upper end of the bucket lid, and the output shaft of the stirring motor moves through the bucket lid and is fixedly connected to the stirring rod.
[0013] Preferably, the stirring blades are symmetrically arranged in two groups on the left and right sides of the stirring rod, with three stirring blades in each group evenly distributed. The lower end of the mixing tank is provided with a liquid outlet, and a control valve is fixedly connected to the lower end of the liquid outlet.
[0014] The beneficial effects of this utility model are:
[0015] This water microplastic pollutant separation device utilizes a cleaning scraper and a filter cartridge. A rotating stirring rod drives the stirring blades to thoroughly mix the separation medium and water, ensuring uniform mixing and reaction efficiency. This facilitates the separation of microplastic pollutants from the water. The water after the reaction impacts the filter bucket, helping to separate more microplastics of different particle sizes, improving the interception efficiency and separation effect. The filtered water flows into the filter cartridge along the guide bucket, where the rotation of the filter cartridge generates centrifugal force for further filtration, enhancing separation efficiency. The purified water is stored in the separation tank for easy collection. After filtration, the rotating cleaning rod drives the cleaning scraper to scrape the filter bucket, preventing clogging and improving cleaning effectiveness. The device is easy to disassemble and assemble, and convenient for cleaning. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the water microplastic pollutant separation device of this utility model.
[0017] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the water microplastic pollutant separation device of this utility model.
[0018] Figure 3The diagram shown is a schematic representation of the filter bucket structure of the microplastic pollutant separation device in water according to this utility model.
[0019] Figure 4 The diagram shown is a schematic of the filter cartridge structure of the water microplastic pollutant separation device of this utility model.
[0020] Explanation of reference numerals in the attached diagram: 1. Separation tank; 2. Guide bucket; 3. Filter bucket; 4. Cleaning rod; 5. Cleaning scraper; 6. Filter cylinder; 7. Connecting cover; 8. Mixing tank; 9. Stirring rod; 10. Stirring blade; 11. Cleaning motor; 12. Impurity discharge pipe; 13. Rotary motor; 14. Liquid outlet pipe; 15. Tank lid; 16. Metering pump; 17. Feed pipe; 18. Stirring motor; 19. Liquid outlet; 20. Control valve. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4 This utility model provides an embodiment of a microplastic pollutant separation device in water, including a separation tank 1; it also includes a cleaning scraper 5 and a filter cylinder 6. A guide bucket 2 is slidably connected to the middle of the inner wall of the separation tank 1, and a filter bucket 3 is fixedly connected to the upper end of the guide bucket 2. A cleaning rod 4 is rotatably connected to the upper end of the filter bucket 3, and a cleaning scraper 5 is fixedly connected to the outer side of the cleaning rod 4. The filter cylinder 6 is rotatably connected inside the separation tank 1. A connecting cover 7 is provided at the upper end of the separation tank 1, and a mixing tank 8 is fixedly connected to the upper end of the connecting cover 7. A stirring rod 9 is provided inside the mixing tank 8, and stirring blades 10 are fixedly connected to the outer side of the stirring rod 9. In use, water and a density separation medium are sequentially added to the mixing tank 8, and the stirring rod 9... The rotating blades 10 rotate and stir, ensuring that the separation medium and water are evenly mixed, improving mixing and reaction efficiency, and facilitating the separation of microplastic pollutants from water. The water after the mixing reaction impacts the filter hopper 3, which helps to separate more microplastics of different particle sizes, improving the interception efficiency of microplastics and enhancing the separation effect. The filtered water flows into the filter cylinder 6 along the guide bucket 2. The rotation of the filter cylinder 6 generates centrifugal force for further filtration, improving the separation efficiency. The purified water is stored in the separation tank 1 for easy collection. After filtration, the cleaning rod 4 rotates, driving the cleaning scraper 5 to scrape the filter hopper 3 to prevent clogging, improve the cleaning effect, and facilitate daily maintenance. The device is easy to disassemble and assemble, and convenient for cleaning.
[0023] Please see Figure 1 , Figure 3 and Figure 4In this embodiment, a cleaning motor 11 is fixedly connected to the upper end of the inner wall of the filter bucket 3. The output shaft of the cleaning motor 11 is fixedly connected to the lower end of the cleaning rod 4. The cleaning motor 11 drives the cleaning rod 4 to rotate. Two cleaning scrapers 5 are symmetrically arranged at the left and right ends of the cleaning rod 4. The lower end of the cleaning scraper 5 is adapted to the outer wall of the filter bucket 3. A discharge pipe 12 is fixedly connected to the right end of the separation bucket 1. The rotation of the cleaning rod 4 drives the cleaning scraper 5 to rotate, scraping off the separated microplastics and discharging them through the discharge pipe 12 for cleaning. A rotating motor 13 is fixedly connected to the lower end of the separation bucket 1. The output shaft of the rotating motor 13 is threadedly connected to the lower end of the filter cylinder 6. The inner wall of the filter cylinder 6 is provided with fiber sponge. A liquid outlet pipe 14 is fixedly connected to the front side of the lower end of the separation bucket 1. The rotating motor 13 drives the filter cylinder 6 to rotate. The fiber sponge effectively adsorbs various microplastics, resulting in good separation effect. The purified water is discharged and collected through the liquid outlet pipe 14.
[0024] Please see Figure 1 and Figure 2 In this embodiment, a lid 15 is provided at the upper end of the mixing tank 8. A metering pump 16 is fixedly connected to the front side of the upper end of the lid 15. A feed pipe 17 is fixedly connected to the upper end of the metering pump 16. Water and density separation medium are added sequentially through the feed pipe 17. The input amount is precisely controlled by the metering pump 16. Microplastic separation is performed by density separation method. A stirring motor 18 is fixedly connected to the upper end of the lid 15. The output shaft of the stirring motor 18 moves through the lid 15 and is fixedly connected to the stirring rod 9. The stirring motor 18 rotates and drives the stirring rod 9 to rotate. The stirring blades 10 are symmetrically arranged in two groups on the left and right sides of the stirring rod 9. There are three stirring blades 10 in each group, which are evenly distributed. A liquid outlet 19 is opened at the lower end of the mixing tank 8. A control valve 20 is fixedly connected to the lower end of the liquid outlet 19. The distribution of the stirring blades 10 reduces mixing resistance and improves stirring efficiency. After the mixing reaction is complete, the control valve 20 is opened and water flows down through the liquid outlet 19.
[0025] During operation, water and density separation medium are added sequentially through the feed pipe 17, and the input is precisely controlled by the metering pump 16. The stirring motor 18 rotates, driving the stirring rod 9 to rotate, which in turn drives the stirring blades 10 to rotate and stir. The water after the mixture reacts impacts the filter hopper 3, which helps to separate more microplastics of different particle sizes, improving the interception efficiency of microplastics and enhancing the separation effect. The filtered water flows into the filter cylinder 6 along the guide bucket 2, and the rotating motor 13 drives the filter cylinder 6 to rotate, generating centrifugal force for further filtration, improving the separation efficiency. The purified water is stored in the separation tank 1 for easy collection. After filtration, the cleaning motor 11 drives the cleaning rod 4 to rotate, and also drives the cleaning scraper 5 to rotate, scraping the filter hopper 3 to prevent clogging, improve the cleaning effect, facilitate daily maintenance, and make the device easy to disassemble and assemble for cleaning.
[0026] Through the above steps, the use of the cleaning scraper 5 and the filter cartridge 6, and the water flow impacting the filter bucket 3, helps to separate more microplastics of different particle sizes, improves the interception efficiency of microplastics, and enhances the separation effect. The rotation of the filter cartridge 6 generates centrifugal force, which improves the separation efficiency. The cleaning scraper 5 scrapes the filter bucket 3 to prevent clogging, improves the cleaning effect, and facilitates daily maintenance. This solves the problems of existing separation devices, such as simple structure, poor separation effect and time consumption, easy clogging of the filter screen, low separation efficiency, and inconvenient maintenance.
Claims
1. A device for separating microplastic pollutants in water, comprising a separation barrel (1); characterized in that: Also include a cleaning scraper (5) and filter cartridge (6), the middle of the inner wall of the separation bucket (1) is slidably connected with a flow guide hopper (2), the upper end of the flow guide hopper (2) is fixedly connected with a filter hopper (3), the upper end of the filter hopper (3) is rotatably connected with a cleaning rod (4), the outer side of the cleaning rod (4) is fixedly connected with a cleaning scraper (5), the inside of the separation bucket (1) is rotatably connected with a filter cartridge (6), the upper end of the separation bucket (1) is provided with a connecting cover (7), the upper end of the connecting cover (7) is fixedly connected with a mixing bucket (8), the inside of the mixing bucket (8) is provided with a stirring rod (9), the outer side of the stirring rod (9) is fixedly connected with a stirring blade (10).
2. The device for separating microplastic-like pollutants in water according to claim 1, characterized in that: The upper end of the inner wall of the filter hopper (3) is fixedly connected with a cleaning motor (11), the output shaft of the cleaning motor (11) is fixedly connected with the lower end of the cleaning rod (4).
3. The device for separating microplastic-like pollutants in water according to claim 1, characterized in that: The cleaning scraper (5) is symmetrically provided with two at the left and right ends of the cleaning rod (4), the lower end of the cleaning scraper (5) is matched with the outer wall of the filter hopper (3), the right end of the separation bucket (1) is fixedly connected with a foreign matter discharge pipe (12).
4. The device for separating microplastic-like pollutants in water according to claim 1, characterized in that: The lower end of the separation bucket (1) is fixedly connected with a rotating motor (13), the output shaft of the rotating motor (13) is threadedly connected with the lower end of the filter cartridge (6), the inner wall of the filter cartridge (6) is provided with a fiber sponge, the front side of the lower end of the separation bucket (1) is fixedly connected with a liquid outlet pipe (14).
5. The device for separating microplastic-like pollutants in water according to claim 1, characterized in that: The upper end of the mixing bucket (8) is provided with a bucket cover (15), the front side of the upper end of the bucket cover (15) is fixedly connected with a metering pump (16), the upper end of the metering pump (16) is fixedly connected with a feed pipe (17).
6. The device for separating microplastic-like pollutants in water according to claim 5, characterized in that: The upper end of the bucket cover (15) is fixedly connected with a stirring motor (18), the output shaft of the stirring motor (18) is movably penetrated through the bucket cover (15) and is fixedly connected with the stirring rod (9).
7. The device for separating microplastic-like pollutants in water according to claim 1, characterized in that: The stirring blades (10) are symmetrically provided with two groups at the left and right sides of the stirring rod (9), each group of the stirring blades (10) is equidistantly distributed with three, the lower end of the mixing bucket (8) is provided with a liquid outlet (19), the lower end of the liquid outlet (19) is fixedly connected with a control valve (20).