Impurity removal device for recycled plastic
By integrating magnetic separation, screening, and spraying components, the impurity removal device solves the problems of large footprint and low efficiency in existing plastic recycling equipment, achieving efficient and integrated impurity removal.
Patent Information
- Application Number
- CN202520225525.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-13
AI Technical Summary
In existing technologies, the plastic recycling process requires two separate devices to remove metal and sand, which leads to longer production lines, increased equipment footprint, and reduced removal efficiency.
Design a cleanroom device that integrates a magnetic separator, a screening unit, a spray unit, and a wastewater discharge unit. The device uses a magnetic separator roller to adsorb metallic impurities, a screening unit to vibrate and separate plastics from sand, and a spray unit to wash away impurities, thus achieving integrated cleanroom removal.
It achieves efficient removal of metal and sand impurities from recycled plastics in a single device, shortening the removal time, reducing the equipment footprint, and improving the removal efficiency.
Smart Images
Figure CN223849712U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of regenerated plastics, in particular to a regenerated plastics impurity removal device. BACKGROUND
[0002] In order to realize resource recycling, relieve environmental pressure, plastic products will be usually recycled and reprocessed. The regenerated plastic refers to the plastic raw material obtained by pretreatment, melt granulation, modification and other physical or chemical methods for processing waste plastics. After mechanical blade crushing operation, the plastic is reused. The recycled waste plastics usually contain other impurities such as metal, sand and other impurities, so the waste plastics cannot be directly melt granulated. Therefore, the impurities need to be removed before the recycled waste plastics are crushed, but the existing method usually removes the metal and sand in the waste plastics by two devices, which prolongs the assembly line, increases the floor area of the device, and the two devices need to be connected by a conveying device, which increases the time required for impurity removal and reduces the efficiency of impurity removal. SUMMARY
[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a regenerated plastic impurity removal device.
[0004] In order to solve the above technical problems, the utility model provides the following technical scheme:
[0005] The utility model relates to a regenerated plastic impurity removal device, which comprises a box body, a feed inlet is arranged at the top end of the box body, first and second discharge ports are respectively arranged on the two side walls of the box body, a rotatable magnetic separation assembly, a screening assembly, a spraying assembly and a pollution discharge assembly are arranged in the box body, the magnetic separation assembly is located below the feed inlet, the screening assembly is located below the left side of the magnetic separation assembly, the spraying assembly is located above the screening assembly, and the pollution discharge assembly is located below the screening assembly.
[0006] As a preferred technical scheme of the utility model, the magnetic separation assembly comprises a magnetic separation roller, a driving motor, a scraper and a baffle, the magnetic separation roller is arranged in the box body and located below the feed inlet, and the two ends thereof are rotatably connected with the inner wall of the box body through bearings, the scraper is arranged at the top end of the box body, and the lower end thereof is in contact with the right outer peripheral surface of the magnetic separation roller, the baffle is arranged in the box body and located between the magnetic separation roller and the feed inlet, and the driving motor is arranged on the outer wall of the box body and drivingly connected with the magnetic separation roller.
[0007] As a preferred technical scheme of the utility model, the screening assembly comprises a partition plate and a sieve plate, the partition plate is vertically arranged on the bottom wall in the box body, one end of the partition plate close to the first discharge port and the inner side wall of the box body opposite to the partition plate are both provided with a mounting groove, the sieve plate is arranged in the box body and is inclined to the first discharge port, and one end of the sieve plate is movably arranged in the mounting groove.
[0008] As a preferred technical scheme of the utility model, the screening assembly further comprises a vibration motor, a damping rod is arranged in each mounting groove, one end of each damping rod is connected with the bottom end of the sieve plate, the other end is connected with the bottom wall of the mounting groove, and the vibration motor is arranged on the partition plate and the vibration end of the vibration motor is in contact with the bottom wall of the sieve plate.
[0009] As a preferred technical scheme of the utility model, the spraying assembly comprises a plurality of water inlet pipes, the plurality of water inlet pipes are arranged on the box body and extend above the screening assembly in the box body, and each water inlet pipe is provided with a spraying head at one end arranged in the box body.
[0010] As a preferred technical scheme of the utility model, the pollution discharge assembly comprises a pollution discharge pipe and two guide plates, the pollution discharge pipe is arranged at the bottom end of the box body and is in communication with the box body, and the two guide plates are arranged at the bottom of the box body and are both inclined to the pollution discharge pipe.
[0011] As a preferred technical scheme of the utility model, the utility model further comprises a discharging plate, the discharging plate is arranged on the right side in the box body and is connected with the side wall of the partition plate at one end and is connected with the second discharge port at the other end.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] After the recycling plastics to be removed impurities enter the box body, the metal impurities in the recycling plastics which can be adsorbed are adsorbed on the magnetic roller by the strong magnet of the magnetic roller, the metal impurities on the magnetic roller are removed by the scraper, the metal impurities are discharged from the second discharge port, the recycling plastics fall on the screening assembly and are sprayed by the spraying assembly at the same time, so that the sand on the recycling plastics is washed away, and the recycling plastics, the sand and the sewage are separated by vibration, the sewage containing the sand is discharged from the pollution discharge pipe, and the recycling plastics removed impurities are discharged from the first discharge port. BRIEF DESCRIPTION OF DRAWINGS
[0014] The accompanying drawings are used to provide further understanding of the utility model and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model and do not constitute limitation to the utility model.
[0015] Figure 1It is the whole structure schematic view of the utility model;
[0016] Figure 2 It is the front view of the utility model;
[0017] Figure 3 It is the top view of the utility model;
[0018] Figure 4 It is the section structure schematic view of the utility model;
[0019] Figure 5 It is the A place enlarged view of the utility model;
[0020] In the drawing: 1, box body;2, feed inlet;3, magnetic separation assembly;31, magnetic separation roller;32, driving motor;33, scraper;34, baffle;4, screening assembly;41, partition;42, sieve plate;43, mounting groove;44, vibration motor;45, damping rod;5, spraying assembly;51, water inlet pipe;52, spray head;6, pollution discharge assembly;61, pollution discharge pipe;62, deflector;7, first discharge outlet;8, second discharge outlet;9, discharging plate. Specific implementation
[0021] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.
[0022] The same reference numerals in the drawings all refer to the same components.
[0023] As Figures 1-5 Indicated, the utility model provides a kind of impurity removal device for recycled plastics, including box body 1, the top of box body 1 is equipped with feed inlet 2, the two side walls of box body 1 are equipped with first discharge outlet 7 and second discharge outlet 8 respectively, rotatable magnetic separation assembly 3, screening assembly 4, spraying assembly 5 and pollution discharge assembly 6 are equipped in box body 1, magnetic separation assembly 3 is below feed inlet 2, screening assembly 4 is below left of magnetic separation assembly 3, spraying assembly 5 is above screening assembly 4, pollution discharge assembly 6 is below screening assembly.
[0024] In this embodiment, the sorted waste plastics are sent into the box 1 through the feed inlet 2. The waste plastics first contact the magnetic separation assembly 3 after entering the box 1. The magnetic separation assembly 3 adsorbs the metal impurities in the waste plastics that can be attracted by magnetic force on the magnetic separation assembly 3. The waste plastics after magnetic separation fall on the screening assembly 4. The screening assembly 4 screens the waste plastics by vibration, and the spraying assembly 5 sprays water on the waste plastics on the screening assembly 4 to flush away the impurities such as sand attached to the waste plastics. The impurities-containing sewage is shaken off from the waste plastics by the screening assembly 4, passes through the screening assembly 4, and enters the sewage discharge assembly 6 at the bottom end of the box 1, and is discharged from the box 1 at the sewage discharge assembly 6. The waste plastics after impurity removal are discharged from the first discharge outlet 7.
[0025] Further, the magnetic separation assembly 3 comprises a magnetic separation roller 31, a driving motor 32, a scraper 33, and a baffle 34. The magnetic separation roller 31 is arranged in the box 1 below the feed inlet 2, and both ends thereof are rotatably connected to the inner wall of the box 1 through bearings. The scraper 33 is arranged at the top end of the box 1, and the lower end thereof is in contact with the right outer peripheral surface of the magnetic separation roller 31. The baffle 34 is arranged in the box 1 obliquely between the magnetic separation roller 31 and the feed inlet 2. The driving motor 32 is arranged on the outer wall of the box 1 and is in transmission connection with the magnetic separation roller 31.
[0026] In this embodiment, the magnetic separation roller 31 of the prior art is horizontally arranged below the right side of the feed inlet 2. The driving motor 32 is in transmission connection with the magnetic separation roller 31 to drive the magnetic separation roller 31 to rotate in the box 1. When the waste plastics fall on the magnetic separation roller 31 from the feed inlet 2, the magnetic separation roller 31 adsorbs the metal impurities in the waste plastics that can be attracted by magnetic force on the outer periphery of the magnetic separation roller 31 through the electromagnet inside the magnetic separation roller 31. With the rotation of the magnetic separation roller 31, the scraper 33 scrapes off the impurities on the magnetic separation roller 31. The impurities fall to the right side of the bottom of the box 1 and are discharged from the second discharge outlet 8.
[0027] The baffle 34 plays a guiding role to prevent the waste plastics from being stuck between the magnetic separation roller 31 and the scraper 33.
[0028] Further, the screening assembly 4 comprises a partition plate 41 and a screen plate 42. The partition plate 41 is vertically arranged on the bottom wall in the box 1. The end of the partition plate 41 close to the first discharge outlet 7 and the inner side wall of the box 1 opposite to the partition plate 41 are both provided with a mounting groove 43. The screen plate 42 is obliquely arranged in the box 1 towards the first discharge outlet 7, and one end thereof is movably mounted in the mounting groove 43.
[0029] In this embodiment, the bottom of the box 1 is divided into left and right parts by the partition plate 41. One end of the screen plate 42 is movably mounted in the mounting groove 43, and the other end thereof extends to the outside of the box 1 from the first discharge outlet 7.
[0030] Further, the screening assembly 4 further comprises a vibrating motor 44, and a damping rod 45 is arranged in each mounting groove 43. One end of each damping rod 45 is connected with the bottom end of the screen plate 42, and the other end is connected with the bottom wall of the mounting groove 43. The vibrating motor 44 is arranged on the partition plate 41, and the vibrating end of the vibrating motor 44 is in contact with the bottom wall of the screen plate 42.
[0031] In this embodiment, one end of the screen plate 42 is connected with the damping rod 45 in the mounting groove 43 on the partition plate 41, and the other end is connected with the damping rod 45 in the mounting groove 43 on the inner wall of the box body 1. The screen plate 42 can move within a certain range through the two damping rods of the prior art. The motor 44 of the prior art is arranged on the partition plate 41, and the vibrating end of the motor 44 is in contact with the bottom end of the screen plate 42, so that the screen plate 42 vibrates, thereby better achieving the screening of waste plastics.
[0032] Further, the spraying assembly 5 comprises a plurality of water inlet pipes 51. The plurality of water inlet pipes 51 are arranged on the box body 1 and extend above the screening assembly 4 in the box body 1. Each water inlet pipe 51 is provided with a spraying head 52 at one end in the box body 1.
[0033] In this embodiment, the plurality of water inlet pipes 51 are communicated with an external water supply device (not shown in the figure) through a connecting pipe. The water pump of the water supply device sends water into the water inlet pipe 51 and sprays the water out of the spraying head 52, so as to wash off the sand and other impurities on the waste plastics.
[0034] Further, the sewage discharge assembly 6 comprises a sewage discharge pipe 61 and two guide plates 62. The sewage discharge pipe 61 is arranged at the bottom end of the box body 1 and is communicated with the box body 1. The two guide plates 62 are arranged at the bottom of the box body 1 and both are inclined towards the sewage discharge pipe 61.
[0035] In this embodiment, the lower ends of the two guide plates 62 are arranged close to the pipe opening of the sewage discharge pipe 61, and the other ends of the two guide plates 62 are connected with the inner wall of the box body 1 and the side wall of the baffle 41, respectively. The sewage produced by washing off the sand and other impurities on the waste plastics passes through the screen plate 42 to the bottom of the box body 1 and is discharged from the sewage discharge pipe 61 along the two guide plates 62.
[0036] Further, the device further comprises a discharging plate 9. The discharging plate 9 is arranged on the right side of the box body 1 in an inclined manner, and one end of the discharging plate 9 is connected with the side wall of the partition plate 41, and the other end of the discharging plate 9 is connected with the second discharge port 8.
[0037] In this embodiment, one end of the discharging plate 9 is connected with the side wall of the partition plate 41, and the other end of the discharging plate 9 extends out of the box body 1 from the second discharge port 8.
[0038] Specifically, the side wall of the box 1 is further provided with a control box using the prior art, a controller in the control box is electrically connected with the magnetic separation roller 31, the driving motor 32 and the vibration motor 44 to control the above components, the bottom end of the box 1 is provided with a support, and the feeding port 2 is provided with a feeding hopper.
[0039] The utility model discloses a kind of impurity removal devices of regenerated plastics, recycled plastics to be impurity-removed enter box and are adsorbed in magnetic separation roller by the strong magnet of magnetic separation roller to the metal impurities that can be adsorbed in recycled plastics, then remove metal impurities on magnetic separation roller by scraper, metal impurities are discharged from second discharge port;Recycled plastics drop on screening assembly are sprayed by spraying assembly simultaneously, to flush away sand on recycled plastics, and by vibration, recycled plastics are separated from sand and sewage, sewage containing sand is discharged from drain pipe, and recycled plastics of impurity removal are discharged from first discharge port.
[0040] Finally, it should be noted that: the above is only preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A device for removing impurities from recycled plastic, characterized by, The utility model provides a kind of magnetic separation and screening device, including box (1), the top of the box (1) is equipped with feed inlet (2), the two side walls of the box (1) are respectively equipped with first discharge outlet (7) and second discharge outlet (8), the box (1) is equipped with rotatable magnetic separation component (3), screening component (4), spray component (5) and blowdown component (6), the magnetic separation component (3) is below the feed inlet (2), the screening component (4) is below the left of the magnetic separation component (3), the spray component (5) is above the screening component (4), the blowdown component (6) is below the screening component.
2. The device for removing impurities from recycled plastic according to claim 1, characterized in that, The magnetic separation component (3) includes magnetic separation roller (31), drive motor (32), scraper (33) and baffle (34), the magnetic separation roller (31) is arranged in the box (1) and is below the feed inlet (2), and its two ends are rotatably connected with the inner wall of the box (1) by bearings, the scraper (33) is arranged at the top of the box (1), and the lower end thereof is in contact with the right outer peripheral surface of the magnetic separation roller (31), the baffle (34) is arranged in the box (1) and is located between the magnetic separation roller (31) and the feed inlet (2), and the drive motor (32) is arranged on the outer wall of the box (1) and is in transmission connection with the magnetic separation roller (31).
3. The device for removing impurities from recycled plastic according to claim 1, characterized in that, The screening component (4) includes partition plate (41) and sieve plate (42), the partition plate (41) is vertically arranged on the bottom wall in the box (1), one end of the partition plate (41) close to the first discharge outlet (7) and the inner side wall of the box (1) opposite to the partition plate (41) are both provided with a mounting groove (43), and the sieve plate (42) is arranged in the box (1) and is inclined towards the first discharge outlet (7), and one end of the sieve plate (42) is movably mounted in the mounting groove (43).
4. The device for removing impurities from recycled plastic according to claim 3, characterized in that, The screening component (4) further includes a vibrating motor (44), and a damping rod (45) is arranged in each mounting groove (43), one end of each damping rod (45) is connected with the bottom end of the sieve plate (42), the other end is connected with the bottom wall of the mounting groove (43), and the vibrating motor (44) is arranged on the partition plate (41) and the vibrating end thereof is in contact with the bottom wall of the sieve plate (42).
5. The device for removing impurities from recycled plastic according to claim 1, characterized in that, The spray component (5) includes a plurality of water inlet pipes (51), and the plurality of water inlet pipes (51) are arranged on the box (1) and extend above the screening component (4) in the box (1), and each water inlet pipe (51) is provided with a spray head (52) at one end arranged in the box (1).
6. The device for removing impurities from recycled plastic according to claim 1, characterized in that, The blowdown component (6) includes a blowdown pipe (61) and two guide plates (62), the blowdown pipe (61) is arranged at the bottom end of the box (1) and is in communication with the box (1), and the two guide plates (62) are arranged at the bottom of the box (1) and are both inclined towards the blowdown pipe (61).
7. The device for removing impurities from recycled plastic according to claim 3, characterized in that, Further comprise the blanking plate (9), the blanking plate (9) is inclined to be arranged in the right side of the box (1), and one end is connected with the side wall of the partition (41), the other end is connected with the second discharge port (8).