A secondary screening and impurity removing device for insulating granular materials
This secondary screening and impurity removal device for insulating granules, which combines a magnetic filter, a stirring motor, and a stepper motor-driven gear, solves the problem of removing metal impurities from plastic granules. It achieves automated impurity removal and fine classification, improving screening efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TRUMP PLASTICS CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, it is difficult to remove metallic impurities from plastic granule raw materials, which affects subsequent processing. Furthermore, the screening process can only perform simple classification, requiring manual cleaning and increasing the workload.
A secondary screening and impurity removal device for insulating granular materials was designed. It uses a magnetic particle filter and a stirring motor to adsorb ferrous substances, and a stepper motor drives the gear to rotate the screening barrel for preliminary and secondary screening, thereby achieving automated impurity removal and fine classification.
It achieves automated removal of iron impurities from plastic granules, improves screening accuracy and efficiency, reduces manual cleaning steps, and enables fine screening and classification of plastic granules.
Smart Images
Figure CN224545014U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of screening equipment technology, specifically relating to a secondary screening and impurity removal device for insulating granular materials. Background Technology
[0002] In existing plastic granules production processes, the raw materials vary in length, making multi-stage screening of the granules inconvenient. The "Vibrating Secondary Sorting Device for Plastic Granules" disclosed in application number "CN202121488076.5" represents an increasingly mature technology. This device uses a motor to drive an elliptical wheel, which in turn moves a clamping plate. Under the action of a first spring, a movable rod moves within a first movable hole, causing the first screening frame to sway left and right, facilitating initial screening of the granules through the first screening mesh. Under the action of a third spring, a vibrating motor drives a second screening frame to vibrate, facilitating secondary screening of the granules. While screening is more labor-saving and improves work efficiency, the device still has the following drawbacks: During the transportation and storage of raw materials, different types of plastic granules and recycled raw materials will be collected and processed together. The raw materials may contain impurities such as metals. The existing equipment is not convenient for removing metal items from the plastic granules, which affects subsequent processing. At the same time, during the screening process, different types of granules can only be simply screened and classified. It is not convenient to classify the granules and discharge them in a centralized manner. The screened granules still need to be cleaned manually, which increases the subsequent steps of cleaning up the screened waste. Utility Model Content
[0003] The purpose of this utility model is to provide a secondary screening and impurity removal device for insulating granular materials, which aims to solve the problems in the prior art where it is inconvenient to remove metal items from plastic granular raw materials, affecting subsequent processing. At the same time, during the screening process, only different types of granules can be simply screened and classified, which is not convenient for classifying the granules and discharging them in a centralized manner. The screened granules still need to be manually cleaned, which increases the subsequent steps of manually cleaning the screened waste.
[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a main operating tank, a conveying pipe fixedly connected to one side of the main operating tank, a first screening tank rotatably connected to one end of the conveying pipe, a stepper motor fixedly connected to the bottom of one side of the main operating tank, a drive gear fixedly connected to the output end of the stepper motor passing through the bottom of one side of the main operating tank, an auxiliary turntable fixedly connected to one side of the first screening tank, a first gear disk fixedly connected to one side of the auxiliary turntable, the first gear disk meshing with the drive gear, a first discharge pipe embedded on the other side of the main operating tank, an inner sealing rotating cylinder fixedly connected to one end of the first discharge pipe, a side of the first screening tank rotatably connected to the inner sealing rotating cylinder, an outlet material cylinder fixedly connected to the other side of the inner wall of the main operating tank, a second screening tank rotatably connected to one side of the outlet material cylinder, a second gear disk fixedly connected to the outer wall of one side of the second screening tank, the drive gear meshing with the second gear disk, and the second screening tank rotatably connected to the auxiliary turntable.
[0005] In an embodiment of the secondary screening and impurity removal device for insulating granular materials of this utility model, the main operating barrel is provided with main support frames on both sides of the bottom, and the bottom of the main operating barrel is sealed and connected to the main unloading pipe.
[0006] In this scheme, the material particles enter the first screening barrel through the conveying pipe for grid screening. The drive gear drives the first gear disk to rotate. At this time, the plastic particles in the first screening barrel are stirred and screened. After the first round of preliminary screening is completed, the material remaining in the first screening barrel flows into the first discharge pipe through the inner sealed rotating cylinder and is discharged. The screened material falls into the second screening barrel. At this time, the second gear disk meshing with the drive gear rotates, driving the second screening barrel to rotate for secondary screening. The screened particles flow out at the bottom through the main discharge pipe.
[0007] In an embodiment of the secondary screening and impurity removal device for insulating granular materials of this utility model, the main operating barrel is provided with main support frames on both sides of the bottom, and the bottom of the main operating barrel is sealed and connected to the main unloading pipe.
[0008] In this scheme, the material in the conveying pipe is transported by a conveyor motor rotating a feeding auger, and the material is sent into the first screening barrel for preliminary screening.
[0009] In an embodiment of the secondary screening and impurity removal device for insulating granular materials of this utility model, a feed pipe is sealed and connected to the top of the other side of the conveying pipe, and an iron removal hood is sealed and connected to the top of the feed pipe. A stirring motor is fixedly connected to one side of the iron removal hood, and a magnetic particle filter screen is provided on the inner wall of the iron removal hood. An energized stirring rod is fixedly connected to the output end of the stirring motor through one side of the magnetic particle filter screen, and magnetic adsorption stirring blades are distributed on the outer wall of the energized stirring rod.
[0010] In this solution, after the raw materials enter the iron removal hood, the materials remain in the magnetic particle filter screen. At this time, the stirring motor rotates and the stirring rod is energized, causing the magnet to attract the stirring blades to stir the materials and adsorb the iron substances in the materials. Small plastic particles leak out through the magnetic particle filter screen, thus performing preliminary impurity removal treatment on the plastic particle raw materials.
[0011] In an embodiment of the secondary screening and impurity removal device for insulating granular materials of this utility model, a screening and unloading pipe is embedded on the other side of the bottom of the main operating barrel, and the screening and unloading pipe is sealed and connected to the outgoing material cylinder.
[0012] In this scheme, the second screening barrel rotates to perform secondary screening, and the material remaining in the second screening barrel flows into the outlet cylinder and flows out from the outlet cylinder.
[0013] In an embodiment of the secondary screening and impurity removal device for insulating granular materials of this utility model, auxiliary support frames are fixedly connected to both sides of the iron removal cover, and the bottom of the auxiliary support frames is provided with a cross-shaped support frame.
[0014] In this solution, an auxiliary support frame is used to support the iron removal hood, which improves the stability of the magnetic adsorption stirring blades when adsorbing and stirring materials. The cross-shaped support frame also supports the auxiliary support frame, thereby increasing the support strength of the auxiliary support frame.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1) The electric stirring rod is rotated by the stirring motor, which causes the magnet to attract the stirring blade to stir the material and adsorb the iron substances in the material. The iron pieces and other metal substances in the plastic particles are adsorbed on the surface of the magnetic particle filter and the surface of the stirring blade attracted by the magnet. Small plastic particles that are not magnetic are leaked out through the magnetic particle filter, thus performing preliminary impurity removal treatment on the plastic particle raw material.
[0017] 2) The stepper motor drives the first gear disk to rotate, and the plastic particles in the first screening barrel are stirred and screened. After the first round of preliminary screening is completed, the material remaining in the first screening barrel flows into the first discharge pipe through the inner sealed rotating cylinder and is discharged. The screened material falls into the second screening barrel for secondary screening. At this time, the second gear disk meshing with the drive gear rotates, driving the second screening barrel to rotate for secondary screening. The screened particles flow out at the bottom through the main discharge pipe, and the material remaining in the second screening barrel flows into the outgoing material cylinder and flows out from the outgoing material cylinder, which improves the screening fineness and screening efficiency of plastic particles. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic cross-sectional view of the main operating bucket of this utility model;
[0021] Figure 3 This is a schematic cross-sectional view of the iron removal cover of this utility model.
[0022] In the diagram: 1. Main operating tank; 2. Conveying pipe; 3. First screening tank; 301. Auxiliary turntable; 4. Stepper motor; 5. Drive gear; 6. First gear disk; 7. First discharge pipe; 8. Inner sealing drum; 9. Outer discharge cylinder; 10. Second screening tank; 11. Second gear disk; 12. Main support frame; 13. Main discharge pipe; 14. Conveying motor; 15. Feeding auger; 16. Feeding pipe; 17. Iron removal cover; 18. Stirring motor; 19. Magnetic particle filter screen; 20. Electric stirring rod; 21. Magnetic adsorption stirring blade; 22. Screening discharge pipe; 23. Auxiliary support frame; 24. Cross-shaped support frame. Detailed Implementation
[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-3This utility model provides the following technical solution: a secondary screening and impurity removal device for insulating granular materials, including a main operating barrel 1, a conveying pipe 2 fixedly connected to one side of the main operating barrel 1, a first screening barrel 3 rotatably connected to one end of the conveying pipe 2, a stepper motor 4 fixedly connected to the bottom of one side of the main operating barrel 1, a drive gear 5 fixedly connected to the output end of the stepper motor 4 through the bottom of one side of the main operating barrel 1, an auxiliary turntable 301 fixedly connected to one side of the first screening barrel 3, a first gear disk 6 fixedly connected to one side of the auxiliary turntable 301, the first gear disk 6 meshing with the drive gear 5, a first discharge pipe 7 embedded on the other side of the main operating barrel 1, an inner sealing rotating cylinder 8 fixedly connected to one end of the first discharge pipe 7, a first screening barrel 3 rotatably connected to the inner sealing rotating cylinder 8, an outgoing material cylinder 9 fixedly connected to the other side of the inner wall of the main operating barrel 1, a second screening barrel 10 rotatably connected to one side of the outgoing material cylinder 9, a second gear disk 11 fixedly connected to the outer wall of one side of the second screening barrel 10, the drive gear 5 meshing with the second gear disk 11, and the second screening barrel 10 rotatably connected to the auxiliary turntable 301.
[0025] In a specific embodiment of a secondary screening and impurity removal device for insulating granular materials, please refer to... Figure 1-2 The main operating barrel 1 has a main support frame 12 on both sides of the bottom, and the bottom of the main operating barrel 1 is sealed and connected to the main unloading pipe 13.
[0026] Please see Figure 1-2 Material particles enter the first screening barrel 3 through the conveying pipe 2 for grid screening. The drive gear 5 drives the first gear disk 6 to rotate. At this time, the plastic particles in the first screening barrel 3 are stirred and screened. After the first round of preliminary screening is completed, the material remaining in the first screening barrel 3 flows into the first discharge pipe 7 through the inner sealing rotating cylinder 8 and is discharged. The screened material falls into the second screening barrel 10. At this time, the second gear disk 11 meshing with the drive gear 5 rotates and drives the second screening barrel 10 to rotate for secondary screening. The screened particles flow out at the bottom through the main discharge pipe 13.
[0027] In a specific embodiment of a secondary screening and impurity removal device for insulating granular materials, please refer to... Figure 2 The other end of the conveying pipe 2 is equipped with a conveying motor 14, and the output end of the conveying motor 14 passes through the other end of the conveying pipe 2 and is fixedly connected to a feeding auger 15.
[0028] Please see Figure 2 The material in the conveying pipe 2 is transported by the conveying motor 14 rotating the feeding auger 15 and sent into the first screening bucket 3 for preliminary screening.
[0029] In a specific embodiment of a secondary screening and impurity removal device for insulating granular materials, please refer to... Figure 3The top of the other side of the conveying pipe 2 is sealed and connected to the feed pipe 16. The top of the feed pipe 16 is sealed and connected to the iron removal cover 17. The iron removal cover 17 is fixedly connected to one side of the stirring motor 18. The inner wall of the iron removal cover 17 is provided with a magnetic particle filter screen 19. The output end of the stirring motor 18 passes through the magnetic particle filter screen 19 and is fixedly connected to an electric stirring rod 20. The outer wall of the electric stirring rod 20 is provided with magnetic adsorption stirring blades 21.
[0030] Please see Figure 3 When the raw materials enter the iron removal hood 17, the materials remain in the magnetic particle filter screen 19. At this time, the stirring motor 18 rotates and the stirring rod 20 is energized, so that the magnet attracts the stirring blade 21 to stir the materials and adsorb the iron substances in the materials. Small plastic particles leak out through the magnetic particle filter screen 19, and the plastic particle raw materials are initially removed.
[0031] In a specific embodiment of a secondary screening and impurity removal device for insulating granular materials, please refer to... Figure 2 The other side of the bottom of the main operating barrel 1 is equipped with a screening discharge pipe 22, which is sealed and connected to the outgoing material cylinder 9.
[0032] Please see Figure 2 The second screening barrel 10 rotates to perform secondary screening. The material remaining in the second screening barrel 10 flows into the outlet material cylinder 9 and flows out from the outlet material cylinder 9.
[0033] In a specific embodiment of a secondary screening and impurity removal device for insulating granular materials, please refer to... Figure 1 In addition to the auxiliary support frame 23 fixedly connected to both sides of the iron cover 17, the bottom of the auxiliary support frame 23 is provided with a cross-shaped support frame 24.
[0034] Please see Figure 1 The auxiliary support frame 23 supports the iron removal cover 17, which improves the stability of the magnetic adsorption stirring blade 21 when adsorbing and stirring the material, and improves the support strength of the auxiliary support frame 23 by supporting the cross-shaped support frame 24.
[0035] This utility model provides a secondary screening and impurity removal device for insulating granular materials. Specifically, the raw material enters the iron removal hood 17 through the top of the hood 17 and remains inside the magnetic particle filter 19. At this time, the stirring motor 18 rotates and powers the stirring rod 20, causing the magnet to attract the stirring blades 21, which stir the material and attract ferrous substances. Metallic substances such as iron flakes in the plastic granules are attracted to the surface of the magnetic particle filter 19 and the surface of the magnetic stirring blades 21. Small, non-magnetic plastic granules leak out through the magnetic particle filter 19. The plastic granule raw material undergoes preliminary impurity removal. The leaked plastic granules enter the conveying pipe 2, where the conveying motor 14 rotates the feeding auger 15 to transport the material into the first screening barrel 3 for preliminary screening. The stepper motor 4 rotates the drive gear 5, which drives the first gear disk 6 to rotate. At this time, the plastic granules in the first screening barrel 3 are stirred and screened. After the first round of preliminary screening is completed, the material remaining in the first screening barrel 3 flows into the first discharge pipe 7 through the inner sealing drum 8 and is discharged. The screened material falls into the second screening barrel 10. At this time, the second gear disk 11, which meshes with the drive gear 5, rotates, driving the second screening barrel 10 to rotate for secondary screening. The screened granules flow out at the bottom through the main discharge pipe 13, while the material remaining in the second screening barrel 10 flows into the outlet cylinder 9 and flows out from the outlet cylinder 9. This improves the screening fineness and efficiency of the plastic granules. At the same time, it screens out iron impurities in the plastic granule raw material and performs fine screening and classification of plastic granules of different sizes.
[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A secondary screening and impurity removal device for insulating granular materials, comprising a main operating tank (1), characterized in that: A conveying pipe (2) is fixedly connected to one side of the main operating bucket (1). A first screening bucket (3) is rotatably connected to one end of the conveying pipe (2). A stepper motor (4) is fixedly connected to the bottom of one side of the main operating bucket (1). A drive gear (5) is fixedly connected to the output end of the stepper motor (4) through the bottom of one side of the main operating bucket (1). An auxiliary turntable (301) is fixedly connected to one side of the first screening bucket (3). A first gear disk (6) is fixedly connected to one side of the auxiliary turntable (301). The first gear disk (6) meshes with the drive gear (5). The main operating bucket (1) is further... A first discharge pipe (7) is embedded on one side, and an inner sealing rotating cylinder (8) is fixedly connected to one end of the first discharge pipe (7). The first screening barrel (3) is rotatably connected to the inner sealing rotating cylinder (8) on one side. An outgoing material cylinder (9) is fixedly connected to the other side of the inner wall of the main operating barrel (1). A second screening barrel (10) is rotatably connected to one side of the outgoing material cylinder (9). A second gear disk (11) is fixedly connected to the outer wall of one side of the second screening barrel (10). The drive gear (5) meshes with the second gear disk (11). The second screening barrel (10) is rotatably connected to the auxiliary rotating disk (301).
2. The secondary screening and impurity removal device for insulating granular materials according to claim 1, characterized in that: The main operating barrel (1) is provided with main support frames (12) on both sides of the bottom, and the bottom of the main operating barrel (1) is sealed and connected to the main unloading pipe (13).
3. The secondary screening and impurity removal device for insulating granular materials according to claim 1, characterized in that: The other end of the conveying pipe (2) is provided with a conveying motor (14), and the output end of the conveying motor (14) passes through the other end of the conveying pipe (2) and is fixedly connected to a feeding auger (15).
4. The secondary screening and impurity removal device for insulating granular materials according to claim 1, characterized in that: The top of the other side of the conveying pipe (2) is sealed and connected to the feed pipe (16), and the top of the feed pipe (16) is sealed and connected to the iron removal cover (17). The iron removal cover (17) is fixedly connected to one side of the stirring motor (18). The inner wall of the iron removal cover (17) is provided with a magnetic particle filter screen (19). The output end of the stirring motor (18) passes through the magnetic particle filter screen (19) and is fixedly connected to an electric stirring rod (20). The outer wall of the electric stirring rod (20) is provided with magnet adsorption stirring blades (21).
5. The secondary screening and impurity removal device for insulating granular materials according to claim 1, characterized in that: The main operating barrel (1) is equipped with a screening discharge pipe (22) on the other side of the bottom, and the screening discharge pipe (22) is sealed and connected to the outgoing material cylinder (9).
6. The secondary screening and impurity removal device for insulating granular materials according to claim 4, characterized in that: The iron removal cover (17) is fixedly connected to two auxiliary support frames (23) on both sides, and the bottom of the auxiliary support frame (23) is provided with a cross-shaped support frame (24).