A sorting and recycling device for scrap metal

By employing a sorting roller assembly and an electromagnet assembly with staggered vertical alignment in the scrap metal recycling device, the problem of omissions caused by insufficient contact of the magnet blocks is solved, thus achieving efficient sorting and recycling of scrap metal.

CN224308602UActive Publication Date: 2026-06-02NANJING QIANDINGCHANG ENVIRONMENTAL PROTECTION GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING QIANDINGCHANG ENVIRONMENTAL PROTECTION GROUP CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, only one set of magnets is set up, distributed above the metal material, resulting in insufficient contact and making it easy to miss some magnets during adsorption.

Method used

It employs two sorting roller assemblies, staggered vertically, combined with multiple partitioned adsorption blocks and electromagnet assemblies, and achieves precise control through conductive rings and conductive graphite seats to ensure sufficient adsorption and screening of ferrous metals.

Benefits of technology

It improves the efficiency of waste metal sorting and recycling, avoids omissions, and enhances recycling quality and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a sorting and recycling device for scrap metal, comprising a housing with a recessed processing chamber inside. Two sorting roller assemblies are arranged in a staggered configuration within the processing chamber. Each sorting roller assembly includes an outer cylinder, partitioned adsorption blocks, and a central shaft. Four partitioned adsorption blocks are positioned between the central shaft and the outer cylinder. A material discharge funnel is located at the top of the housing, extending into the top of the processing chamber. The material is initially screened by the sorting roller assembly at the top of the processing chamber, and then further screened by the sorting roller assembly at the bottom of the processing chamber. The material falls directly onto the sorting roller assemblies, ensuring sufficient and direct contact, and multiple screenings prevent any omissions.
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Description

Technical Field

[0001] This invention belongs to the field of recycling and specifically relates to a recycling device for scrap metal. Background Technology

[0002] Scrap metal refers to metal fragments and shavings discarded by the metallurgical and metal processing industries, as well as metal objects from equipment upgrades and scrapping. It also includes metal packaging containers and scrapped vehicles recovered from municipal waste. Scrap metal is a resource, and specialized companies worldwide operate scrap metal recycling businesses. Recycled scrap metal is primarily used for smelting and refining into recycled metal, with some used to produce machinery, equipment, parts, tools, and household appliances.

[0003] The existing patent, patent number 202420054760.X, entitled "A Sorting Device for Scrap Metal Recycling," features the characteristics of "setting up a crushing box, crushing roller, and filter screen to facilitate the crushing of metals of different sizes and conveying them into the box for subsequent recycling and sorting; setting up a flipping device, fixing frame, and magnetic blocks to facilitate the flipping and adsorption of the crushed metals, thereby achieving the function of sorting and improving the recycling efficiency and quality of metals." However, it still has some shortcomings, such as only one set of magnetic blocks being set up and distributed above the metal materials, resulting in insufficient contact and easy omissions during adsorption. Therefore, a sorting and recycling device for scrap metal is proposed. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given the following technical problems in the existing technology: such as only one set of magnets being set and distributed above the metal material, insufficient contact and easy omissions during adsorption.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sorting and recycling device for scrap metal, comprising a shell, wherein a processing chamber is recessed inside the shell, and two sorting roller assemblies are arranged inside the processing chamber. The two sorting roller assemblies are staggered vertically. Each sorting roller assembly includes an outer cylinder, partitioned adsorption blocks, and a central shaft. Four partitioned adsorption blocks are arranged between the central shaft and the outer cylinder. A discharge funnel is provided at the top of the shell, extending into the top of the processing chamber. The discharge funnel is inclined, and its bottom end is set as an arc-shaped surface. The center of the arc-shaped surface of the discharge funnel coincides with the center of the outer cylinder at the top of the discharge chamber. The distance between the arc-shaped surface and the outer cylinder is less than two centimeters. The leftmost side of the bottom end of the discharge funnel is located on the right side of the outer cylinder.

[0007] A material discharge chamber is provided at the bottom of one side of the processing chamber, and a material discharge cylinder one is provided at the bottom of the material discharge chamber. A material discharge cylinder two is provided at the bottom of the other side of the processing chamber. The material discharge cylinder one is located on one side of the outer cylinder at the bottom of the processing chamber, and the material discharge cylinder two is located on the other side of the outer cylinder at the bottom of the processing chamber.

[0008] Non-ferrous metals and materials that cannot be attracted by electromagnetic fields are discharged through the second discharge cylinder.

[0009] As a preferred technical solution for a waste metal sorting and recycling device, the bottom of the discharge funnel is cylindrical, and the straight line that is tangent to both outer cylinders and located on the right side of the outer cylinders is parallel to the central axis of the cylindrical bottom of the discharge funnel. The discharge funnel is set at an inclination.

[0010] As a preferred technical solution for a waste metal sorting and recycling device, the inner wall of the processing chamber is provided with a scraper one and a scraper two. The scraper one is movably connected to the outer cylinder at the top of the processing chamber, and the scraper two is movably connected to the outer cylinder at the bottom of the processing chamber. Both scraper one and scraper two are located in the upper half of the central axis, and the plane at the bottom of scraper one coincides with the horizontal plane that bisects the outer cylinder.

[0011] The scraper removes the ferrous metal adhering to the surface of the outer cylinder, and the adsorbed ferrous metal falls off through the discharge cylinder.

[0012] As a preferred technical solution for a waste metal sorting and recycling device, the outer cylinder extends into a circular groove recessed in the inner wall of the processing chamber and is rotatably connected, and an electromagnet assembly is installed in the partitioned adsorption block.

[0013] As a preferred technical solution for a waste metal sorting and recycling device, the electromagnet assembly includes an electromagnet, a first conductive ring, a second conductive ring, a power supply, and a conductive graphite base. Several electromagnets are installed in each partition adsorption block. A second conductive ring is installed in each partition adsorption block. The first conductive ring passes through four partition adsorption blocks. The circles of the second conductive ring and the first conductive ring coincide. One end of the electromagnet is electrically connected to the second conductive ring, and the other end of the electromagnet is electrically connected to the first conductive ring. The material of the partition adsorption block is ceramic.

[0014] The power supply is connected to two conductive graphite bases. One conductive graphite base is in contact with conductive ring two, and the other conductive graphite base is movably connected to conductive ring one.

[0015] The power supply is electrically connected through the conductive graphite base to the conductive ring 2 and conductive ring 1, so that the electromagnet is connected to the circuit. When the electromagnet is energized, it generates a magnetic field to attract the ferrous metal. The ferrous metal is brought into the material discharge chamber as the partitioned adsorption block rotates.

[0016] As a preferred technical solution for a waste metal sorting and recycling device, the bottom of the discharge funnel is recessed with a notch, and the plane of the flat surface of the notch passes through the central axis of the outer cylinder.

[0017] As a preferred technical solution for a waste metal sorting and recycling device, a flow guiding structure is provided at the top of the processing chamber. The flow guiding structure includes a fixed frame, an elastic flow guiding arc plate, and a U-shaped spring plate. The fixed frame is provided on the inner top wall of the processing chamber. The bottom of the fixed frame is connected to the bottom end of the elastic flow guiding arc plate via the U-shaped spring plate. The opening of the U-shaped spring plate faces downwards, and the elastic flow guiding arc plate is J-shaped. The power supply includes a storage battery or a power grid.

[0018] The elastic guide arc plate blocks the material and guides the material that falls outside the outer cylinder, allowing the material to return to the outer cylinder. The U-shaped spring plate reduces the impact of the material on the elastic guide arc plate.

[0019] The beneficial effects of the waste metal sorting and recycling device of the present invention are as follows: the sorting roller assembly at the top of the processing chamber screens the material once, and the sorting roller assembly at the bottom of the processing chamber screens the material that falls from the sorting roller assembly at the top of the processing chamber again. The material falls directly onto the sorting roller assembly and gets full and direct contact. Multiple screenings prevent omissions.

[0020] By using the conductive ring two in conjunction with the conductive graphite base, the adsorbed ferrous metal can be precisely controlled to fall off, resulting in higher efficiency. Since no electronic device is used to control the on / off state of the circuit, the reliability is also higher. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2This is a schematic diagram of the cross-sectional structure of the partitioned adsorption block of the present invention;

[0024] Figure 3 This is a schematic diagram of the circuit structure of the present invention;

[0025] Figure 4 This is a cross-sectional view of the front of the present invention;

[0026] Figure 5 This is a schematic diagram showing the distribution of the conductive graphite base connected to the conductive ring II in this invention.

[0027] Reference numerals in the attached drawings: Shell-1, Processing chamber-2, Discharge chamber-3, Scraper 1-4, Scraper 2-5, Discharge funnel-6, Fixing frame-7, Elastic guide arc plate-8, Central shaft-9, Partition adsorption block-10, Outer cylinder-11, Discharge cylinder 1-12, Discharge cylinder 2-13, Electromagnet-14, Conductive ring 1-15, Conductive ring 2-16, Power supply-17, Conductive graphite seat-18, Notch-19, U-shaped spring plate-20. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0032] like Figures 1-5As shown, this invention proposes a sorting and recycling device for waste metal, including a housing 1. The interior of the housing 1 is recessed into a processing chamber 2. The processing chamber 2 is equipped with two sorting roller assemblies, which are staggered vertically. Each sorting roller assembly includes an outer cylinder 11, partitioned adsorption blocks 10, and a central shaft 9. Four partitioned adsorption blocks 10 are arranged between the central shaft 9 and the outer cylinder 11. A discharge funnel 6 is provided at the top of the housing 1, extending into the top of the processing chamber 2. The discharge funnel 6 is inclined, and its bottom end is an arc-shaped surface. The center of the arc-shaped surface of the discharge funnel 6 coincides with the center of the outer cylinder 11 at the top of the discharge chamber 3. The distance between the arc-shaped surface and the outer cylinder 11 is less than two centimeters. The leftmost side of the bottom end of the discharge funnel 6 is located on the right side of the outer cylinder 11.

[0033] A material discharge chamber 3 is provided at the bottom of one side of the processing chamber 2. A material discharge cylinder 12 is provided at the bottom of the material discharge chamber 3. A material discharge cylinder 23 is provided at the bottom of the other side of the processing chamber 2. The material discharge cylinder 12 is located on one side of the bottom outer cylinder 11 of the processing chamber 2, and the material discharge cylinder 23 is located on the other side of the bottom outer cylinder 11 of the processing chamber 2.

[0034] Non-ferrous metals and materials that cannot be attracted by electromagnetic fields are discharged through discharge cylinder 213.

[0035] The bottom of the discharge hopper 6 is cylindrical, and the straight line that is tangent to both outer cylinders 11 and located on the right side of the outer cylinders 11 is parallel to the central axis of the cylindrical bottom of the discharge hopper 6. The discharge hopper 6 is set at an angle.

[0036] The inner wall of the processing chamber 2 is provided with a scraper 4 and a scraper 5. The scraper 4 is movably connected to the outer cylinder 11 at the top of the processing chamber 2, and the scraper 5 is movably connected to the outer cylinder 11 at the bottom of the processing chamber 2. Both the scraper 4 and the scraper 5 are located in the upper half of the central axis 9. The plane at the bottom of the scraper 4 coincides with the horizontal plane that bisects the outer cylinder 11.

[0037] The scraper 4 scrapes off the ferrous metal adhering to the surface of the outer cylinder 11, and the adsorbed ferrous metal falls off through the discharge cylinder 12.

[0038] The outer cylinder 11 extends into the recessed circular groove in the inner wall of the processing chamber 2 and is rotatably connected. An electromagnet assembly is installed in the partitioned adsorption block 10.

[0039] The electromagnet assembly includes an electromagnet 14, a first conductive ring 15, a second conductive ring 16, a power supply 17, and a conductive graphite base 18. Several electromagnets 14 are provided in each partitioned adsorption block 10. The second conductive ring 16 is provided in each partitioned adsorption block 10. The first conductive ring 15 passes through four partitioned adsorption blocks 10. The circles of the second conductive ring 16 and the first conductive ring 15 coincide. One end of the electromagnet 14 is electrically connected to the second conductive ring 16, and the other end of the electromagnet 14 is electrically connected to the first conductive ring 15. The material of the partitioned adsorption block 10 is ceramic.

[0040] The power supply 17 is connected to two conductive graphite seats 18. One conductive graphite seat 18 is in contact with the second conductive ring 16, and the other conductive graphite seat 18 is movably connected to the first conductive ring 15.

[0041] The power supply 17 is electrically connected to the conductive ring 16 and the conductive ring 15 through the conductive graphite base 18, so that the electromagnet 14 is connected to the circuit. The electromagnet 14 is energized to generate a magnetic field to attract the ferrous metal. The ferrous metal is brought into the material discharge chamber 3 as the partitioned adsorption block 10 rotates.

[0042] The bottom of the material feeding hopper 6 is recessed with a notch 19, and the plane on which the flat surface of the notch 19 is located passes through the central axis of the outer cylinder 11.

[0043] The top of the processing chamber 2 is provided with a flow guiding structure, which includes a fixing frame 7, an elastic flow guiding arc plate 8, and a U-shaped spring plate 20. The fixing frame 7 is provided on the inner top wall of the processing chamber 2. The bottom of the fixing frame 7 is connected to the bottom end of the elastic flow guiding arc plate 8 through the U-shaped spring plate 20. The opening of the U-shaped spring plate 20 faces downward, and the elastic flow guiding arc plate 8 is J-shaped. The power supply includes a storage battery or a power grid.

[0044] The elastic guide arc plate 8 blocks the material and guides the material that falls outside the outer cylinder 11, so that the material returns to the outer cylinder 11. The U-shaped spring plate 20 reduces the impact of the material on the elastic guide arc plate 8.

[0045] Two motors are installed on the outside of the housing 1. The central shaft 9 corresponds to each motor. The power output end of the motor is fixedly connected to the central shaft 9. The motor controls the partition adsorption block 10 to continuously change position through the central shaft 9. The central shaft 9 rotates clockwise.

[0046] Each of the 10 partitioned adsorption blocks is a quarter of a circumference.

[0047] The conductive graphite seats connected to the conductive ring are completely distributed on the right side, and the left vertical surface of the conductive graphite seat passes through the center of the outer cylinder 11.

[0048] The conductive ring 15 is a complete circular arc.

[0049] The specific implementation method is as follows: The material to be sorted enters the processing chamber 2 through the feeding funnel 6. The motor controls the partition adsorption block 10 to continuously change its position through the central shaft 9. The partition adsorption block 10 rotates clockwise. The material passes through the surface of the outer cylinder 11. The power supply 17 is electrically connected to the conductive ring 16 and the conductive ring 15 through the conductive graphite seat 18, so that the electromagnet 14 is connected to the circuit. The electromagnet 14 is energized to generate a magnetic field to adsorb the ferrous metal. The ferrous metal is brought into the feeding chamber 3 as the partition adsorption block 10 rotates. The sorting roller assembly at the top of the processing chamber 2 performs a first screening of the material. The sorting roller assembly at the bottom of the processing chamber 2 performs a second screening of the material that falls from the sorting roller assembly at the top of the processing chamber 2 to avoid omission.

[0050] After the second conductive ring 16 reaches the discharge chamber 3 completely, the second conductive ring 16 loses contact with the conductive graphite seat 18, the electromagnet 14 stops generating a magnetic field and no longer attracts the ferrous metal, causing the ferrous metal to fall off. The first scraper 4 scrapes off the ferrous metal adhering to the surface of the outer cylinder 11. Non-ferrous metals and materials that cannot be attracted by electromagnetic force are discharged through the second discharge cylinder 13, and the attracted ferrous metal falls off through the first discharge cylinder 12.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for sorting and recycling scrap metal, characterized by: Includes a housing (1), and a processing cavity (2) is recessed inside the housing (1). Two sorting roller assemblies are arranged inside the processing cavity (2), and the two sorting roller assemblies are staggered vertically. The sorting roller assembly includes an outer cylinder (11), partitioned adsorption blocks (10) and a central shaft (9). Four partitioned adsorption blocks (10) are arranged between the central shaft (9) and the outer cylinder (11). A discharge funnel (6) is provided at the top of the shell (1). The discharge funnel (6) extends into the top of the processing chamber (2). The bottom end of the discharge funnel (6) is set as an arc-shaped surface. The center of the arc-shaped surface of the discharge funnel (6) coincides with the center of the outer cylinder (11) at the top of the discharge chamber (3). The distance between the arc-shaped surface and the outer cylinder (11) is less than two centimeters. The leftmost side of the bottom end of the discharge funnel (6) is located on the right side of the outer cylinder (11). A material discharge chamber (3) is provided at the bottom of one side of the processing chamber (2), and a material discharge cylinder one (12) is provided at the bottom of the material discharge chamber (3). A material discharge cylinder two (13) is provided at the bottom of the other side of the processing chamber (2). The material discharge cylinder one (12) is located on one side of the outer cylinder (11) at the bottom of the processing chamber (2), and the material discharge cylinder two (13) is located on the other side of the outer cylinder (11) at the bottom of the processing chamber (2).

2. The device for sorting and recycling scrap metal according to claim 1, characterized in that: The bottom of the discharge hopper (6) is a cylinder, and the straight line that is tangent to both outer cylinders (11) and located on the right side of the outer cylinders (11) is parallel to the central axis of the cylinder at the bottom of the discharge hopper (6). The discharge hopper (6) is set at an angle.

3. The device for sorting and recycling scrap metal according to claim 1, characterized in that: The inner wall of the processing chamber (2) is provided with a scraper (4) and a scraper (5). The scraper (4) is movably connected to the outer cylinder (11) at the top of the processing chamber (2), and the scraper (5) is movably connected to the outer cylinder (11) at the bottom of the processing chamber (2). Both the scraper (4) and the scraper (5) are located in the upper half of the central axis (9). The plane at the bottom of the scraper (4) coincides with the horizontal plane that bisects the outer cylinder (11).

4. A sorting and recycling device for scrap metal according to claim 1, characterized in that: The outer cylinder (11) extends into the circular groove recessed in the inner wall of the processing chamber (2) and is rotatably connected. An electromagnet assembly is installed in the partition adsorption block (10).

5. A sorting and recycling device for scrap metal according to claim 4, characterized in that: The electromagnet assembly includes an electromagnet (14), a first conductive ring (15), a second conductive ring (16), a power supply (17), and a conductive graphite base (18). Each partition adsorption block (10) contains several electromagnets (14). The second conductive ring (16) is provided in the partition adsorption block (10). The first conductive ring (15) passes through four partition adsorption blocks (10). The circles of the second conductive ring (16) and the first conductive ring (15) coincide. One end of the electromagnet (14) is electrically connected to the second conductive ring (16), and the other end of the electromagnet (14) is electrically connected to the first conductive ring (15). The material of the partition adsorption block (10) is ceramic. The power supply (17) is connected to two conductive graphite seats (18). One conductive graphite seat (18) is in contact with the second conductive ring (16), and the other conductive graphite seat (18) is movably connected to the first conductive ring (15).

6. A sorting and recycling device for scrap metal according to claim 1, characterized in that: The bottom of the material feeding hopper (6) is recessed with a notch (19), and the plane on which the flat surface of the notch (19) is located passes through the central axis of the outer cylinder (11).

7. The device for sorting and recycling scrap metal according to claim 1, characterized in that: The top of the processing chamber (2) is provided with a flow guiding structure, which includes a fixed frame (7), an elastic flow guiding arc plate (8) and a U-shaped spring plate (20). The inner top wall of the processing chamber (2) is provided with a fixed frame (7). The bottom of the fixed frame (7) is connected to the bottom end of the elastic flow guiding arc plate (8) through the U-shaped spring plate (20). The opening of the U-shaped spring plate (20) faces downward, and the elastic flow guiding arc plate (8) is J-shaped.