Novel self-discharging iron remover for lithium battery material

Abstract

The utility model relates to the technical field of iron remover, and disclose a new lithium battery material is with self -discharging iron remover, including reduction motor and the shell of being located in one side of reduction motor, the output of reduction motor is connected with main shaft, and the surface of main shaft is equipped with rotating mechanism, and is installed in the inside setting of shell, the surface of rotating mechanism is connected with permanent magnet bar through bolt assembly, and the one end of rotating mechanism is connected with the setting of movable plate. Reduction motor drive main shaft drive rotating mechanism and the permanent magnet bar of its outer surface synchronous rotation, realize the efficient adsorption of iron impurity in material, when needing cleaning, cylinder cooperation movable plate and limit switch control rotating mechanism accurate parking, and promote permanent magnet bar along the axial into scraping assembly, utilize the surface impurity of scraping sleeve to carry out automatic scraping, thereby avoid manual cleaning, improve the iron removal efficiency, simultaneously, the cooperation of linear bearing and guide rod guarantees the stability of cleaning process, prevents rotating mechanism from deviating, improves the reliability and service life of overall operation.

Description

Technical Field

[0001] This utility model relates to the field of iron removal technology, specifically to a novel self-unloading iron removal device for lithium battery materials. Background Technology

[0002] In the lithium battery materials industry, especially in the production of high-purity positive and negative electrode materials (such as lithium iron phosphate, ternary materials, and graphite), the introduction of ferromagnetic impurities (such as iron filings and metal dust generated from wear) can severely damage battery performance, leading to increased self-discharge, capacity decay, and even safety hazards. Furthermore, these impurities can easily cause jamming, wear, or even damage when entering subsequent processing equipment, thus affecting the continuous operation of the production line. Therefore, iron removal equipment has significant application value in related industries.

[0003] Existing self-unloading rotary iron separators typically use a motor to drive a rotor, with multiple permanent magnets arranged on the rotor surface to attract iron filings, followed by a scraping device to remove impurities. While these devices achieve a certain degree of automated iron removal, they still have several shortcomings. First, in traditional structures, the permanent magnets usually need to be fixed at both ends of the rotor, resulting in a large overall size. This not only increases manufacturing and installation difficulties but also limits their application in space-constrained production lines. Second, in existing equipment, the material chamber and the iron removal chamber are often not clearly separated, making it easy for scraped iron filings to re-mix with the material, causing secondary pollution and affecting the quality of the final product. Third, traditional rotors often use a fully magnetic round bar design, where iron filings accumulate at the base of the bars after adsorption, making cleaning difficult and leading to the formation of an accumulation layer over time. These difficult-to-remove iron filings may fall into the material during equipment rotation or vibration, posing a pollution risk and weakening the continuous adsorption capacity of the permanent magnets.

[0004] Furthermore, some traditional automatic unloading iron separators rely on complex transmission and positioning mechanisms to ensure the coordination between the rotor and the scraper, resulting in complex equipment structure, inconvenient maintenance, and insufficient operational stability. Especially under long-term working conditions, problems such as incomplete cleaning, secondary pollution, and scale shedding become more prominent. This technology, based on a permanent magnet system, achieves automation and high efficiency in iron removal, significantly improving material purity, ensuring batch consistency, and meeting the stringent requirements of large-scale, refined production of lithium battery materials.

[0005] In summary, existing self-unloading rotary iron removal equipment generally suffers from drawbacks such as complex structure, large size, incomplete iron filings removal, and the risk of secondary pollution. Therefore, this paper proposes a novel self-unloading iron remover for lithium battery materials. This new type of automatic rotary iron removal device can separate materials from iron filings and effectively solve the problems of iron filings accumulation and secondary pollution, thereby improving operational stability and service life, and meeting the upgrade needs of modern lithium battery material production for iron removal equipment. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a novel self-unloading iron remover for lithium battery materials, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel self-unloading iron separator for lithium battery materials includes a geared motor and a housing located on one side of the geared motor. The output end of the geared motor is connected to a main shaft. A rotating mechanism is sleeved on the surface of the main shaft and installed inside the housing. A permanent magnet is connected to the surface of the rotating mechanism via a bolt assembly. A movable plate is connected to one end of the rotating mechanism.

[0009] A sealing ring is provided at the opening of the outer shell, and a scraping component is provided on one side of the sealing ring. The permanent magnet rod passes through the scraping component.

[0010] Two sets of linear bearings are symmetrically arranged on the outer shell. Each set of linear bearings has two bearings arranged along the same horizontal line. A guide rod is inserted into each set of linear bearings. One end of the guide rod is connected to the movable plate. Two cylinders are symmetrically arranged on the surface of the outer shell. The output end of the cylinder is connected to the movable plate.

[0011] The cylinder's movement drives the movable plate to move axially, which in turn drives the permanent magnet rod on the rotating mechanism to reciprocate along the inner cavity of the scraping component.

[0012] Optionally, the main shaft is in the shape of a square shaft.

[0013] Optionally, the rotating mechanism includes a PTFE bushing, a turntable, a round bushing, and a threaded cap;

[0014] The PTFE bushing is fitted onto the main shaft;

[0015] The round bushing is fixedly connected to the middle of the turntable surface and is sleeved on the PTFE bushing. The threaded cap is located at one end of the round bushing.

[0016] Optionally, one end of the threaded gland is mounted on the movable plate via a round nut, a round nut retaining washer, and a tapered roller bearing.

[0017] Optionally, the surface of the movable plate is provided with a bearing cover.

[0018] Optionally, a limit switch is provided on the active plate.

[0019] Optionally, the scraping assembly includes a pattern plate, a scraper sleeve, and a pressure plate;

[0020] The flower plate is disposed on one side of the sealing ring, and its surface has a plurality of round holes corresponding to a plurality of permanent magnet rods;

[0021] The scraper sleeve is set inside the round hole of the tube sheet;

[0022] The pressure plate is bolted to the perforated plate.

[0023] Optionally, a stop is provided at one end of the guide rod.

[0024] This utility model provides a novel self-unloading iron separator for lithium battery materials, which has the following beneficial effects:

[0025] 1. This utility model provides a novel self-unloading iron remover for lithium battery materials. A geared motor drives the main shaft, which in turn drives the rotating mechanism and its outer surface permanent magnet rods to rotate synchronously, achieving efficient adsorption of iron impurities in the material. When cleaning is required, a cylinder, in conjunction with a movable plate and limit switches, controls the rotating mechanism to precisely stop and pushes the permanent magnet rods axially into the scraping assembly. The scraper sleeve automatically scrapes away surface impurities, thus avoiding manual cleaning and improving iron removal efficiency. Simultaneously, the cooperation between the linear bearing and the guide rod ensures the stability of the cleaning process, prevents the rotating mechanism from shifting, and improves the overall reliability and service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is an exploded view of the structure of this utility model;

[0028] Figure 3 This is a schematic cross-sectional view of the present invention.

[0029] Figure 4 This is a schematic diagram of the structure of the cylinder of this utility model during operation.

[0030] In the diagram: 1. Gear motor; 2. Housing; 3. Main shaft; 4. Rotating mechanism; 41. PTFE bushing; 42. Turntable; 43. Round bushing; 44. Threaded gland; 401. Round nut; 402. Round nut retaining washer; 403. Tapered roller bearing; 5. Permanent magnet; 6. Movable plate; 7. Limit switch; 8. Sealing ring; 9. Scraping assembly; 91. Perforated plate; 92. Scraper sleeve; 93. Pressure plate; 10. Linear bearing; 11. Guide rod; 111. Stop block; 12. Cylinder; 13. Bearing cover. Detailed Implementation

[0031] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] This application proposes a novel self-unloading iron separator for lithium battery materials, as detailed below;

[0034] For reference Figure 1-2 This device includes a geared motor 1 and a housing 2 located on one side of it. The output end of the geared motor 1 is connected to a main shaft 3, and a rotating mechanism 4 is fitted onto the surface of the main shaft 3 and installed inside the housing 2. Specifically, the rotating mechanism 4 consists of a PTFE bushing 41, a turntable 42, a round bushing 43, and a threaded cap 44; wherein, the PTFE bushing 41 is fitted onto the main shaft 3, the center of the turntable 42 is fixedly connected to the round bushing 43, the round bushing 43 is fitted onto the outside of the PTFE bushing 41, and the threaded cap 44 is installed at one end of the round bushing 43. During operation, the geared motor 1 drives the main shaft 3 to rotate, thereby driving the rotating mechanism 4 to rotate synchronously; during installation, the rotating mechanism 4 can be assembled as a whole first, then fitted onto the main shaft 3, and fixed by the threaded cap 44.

[0035] It should be noted that, in order to facilitate the connection and cooperation between the main spindle 3 and the rotating mechanism 4, the main spindle 3 is set in the form of a square shaft.

[0036] For reference Figure 1-2 A permanent magnet rod 5 is fixedly connected to the outer surface of the rotating mechanism 4 by bolt assembly, and a movable plate 6 is also installed at one end of the rod. A sealing ring 8 is provided at the opening of the outer shell 2, and a scraping component 9 is installed on one side of the sealing ring 8. The permanent magnet rod 5 passes through the scraping component 9 and is configured to cooperate with it. Through the above structure, external impurities can be prevented from entering the interior of the outer shell 2, and surface impurities can be scraped off when the permanent magnet rod 5 moves along the axial direction of the scraping component 9, ensuring that the permanent magnet rod 5 always maintains a good working condition and magnetic effect, thereby improving the stability and service life of the device.

[0037] For reference Figure 2-3When the geared motor 1 rotates, it drives the main shaft 3 to rotate, thereby causing the entire structure to rotate. Two cylinders 12 are symmetrically arranged on the surface of the outer casing 2. The output end of cylinder 12 is connected to the movable plate 6. During rotation, cylinder 12 is closed and not working. However, when removing impurities, cylinder 12 starts working. First, a limit switch 7 is set on the movable plate 6. Based on the limit switch 7, a stop signal is provided to ensure the rotating structure stops at the set position. Then, cylinder 12 opens and pushes the movable plate 6 to the side away from the geared motor 1. At this time, the rotating mechanism 4 moves in the same direction as the main shaft 3 and the movable plate 6. During this movement, the permanent magnet rod 5 reciprocates along the scraping component 9, scraping away the dirt on the surface of the permanent magnet rod 5. This structure not only improves the stability and reliability of the cleaning process, avoids manual intervention, and reduces maintenance intensity, but also ensures that the permanent magnet rod 5 always maintains a good iron removal effect, thereby extending the service life of the device and improving operating efficiency.

[0038] Specifically, the scraping assembly 9 includes a tube sheet 91, a scraper sleeve 92, and a pressure plate 93. The tube sheet 91 is located on one side of the sealing ring 8, and its surface has multiple circular holes corresponding to multiple permanent magnet rods 5. The scraper sleeve 92 is located inside the circular holes of the tube sheet 91. The pressure plate 93 is bolted to the tube sheet 91. When the permanent magnet rod 5 moves, it is located inside the circular holes. During the reciprocating motion, its surface will come into contact with the scraper sleeve 92. Since the diameter of the permanent magnet rod 5 contaminated with impurities is larger than that of the scraper sleeve 92, during the reciprocating motion, the dirt will be scraped off into the tube sheet 91 by the scraper sleeve 92. The tube sheet 91 is provided with a discharge port, from which the dirt is discharged.

[0039] For reference Figure 2-3 To maintain the stability of the remaining structure when the cylinder 12 is in motion, two sets of linear bearings 10 are symmetrically arranged on the outer shell 2. Each set of linear bearings 10 has two members arranged along the same horizontal line. A guide rod 11 is inserted into each set of linear bearings 10, and one end of the guide rod 11 is connected and installed to the movable plate 6. When the cylinder 12 moves, the guide rod 11 moves along the inner cavity of the linear bearing 10, thereby maintaining its stability. At the same time, to limit the movement distance, a stop block 111 is provided at one end of the guide rod 11 to prevent the guide rod 11 from moving out of the linear bearing 10.

[0040] In this invention, the working steps of the device are as follows:

[0041] First, the geared motor 1 is started, driving the main shaft 3 to rotate, thereby causing the rotating mechanism 4 mounted on it to rotate synchronously. The permanent magnet 5 then completes the normal rotational iron removal work inside the outer casing 2. During this process, the cylinder 12 remains closed and does not participate in the action, ensuring the stable operation of the rotating structure.

[0042] Secondly, when the surface of the permanent magnet rod 5 needs to be cleaned, the cylinder 12 starts to move. Before the cylinder 12 pushes, the limit switch 7 on the movable plate 6 detects that the rotating mechanism 4 has reached the set position and outputs a motor stop signal to ensure that the spindle 3 and the rotating mechanism 4 are accurately stopped and to avoid deviation during the cleaning process.

[0043] Then, cylinder 12 pushes movable plate 6 to move away from reduction motor 1, while driving rotating mechanism 4 to move axially along main shaft 3; at this time, permanent magnet rod 5 fixed on the surface of rotating mechanism 4 also enters scraping assembly 9 and reciprocates under the constraint of round hole of tube sheet 91 and scraper sleeve 92; since the diameter of permanent magnet rod 5 with impurities is larger than the inner diameter of scraper sleeve 92, scraper sleeve 92 can effectively scrape off iron impurities adsorbed on its surface during the reciprocating process. After the impurities are cleaned, they fall into the inner cavity of tube sheet 91 and are discharged through the discharge port set on it.

[0044] Finally, to ensure the stability of the entire scraping process, the linear bearings 10 symmetrically arranged on both sides of the outer casing 2, under the guidance of the guide rod 11, ensure that the movable plate 6 and the rotating mechanism 4 maintain stable linear motion during the pushing process of the cylinder 12; at the same time, the stop block 111 at the end of the guide rod 11 can effectively limit the stroke of the guide rod 11 and prevent it from disengaging from the linear bearing 10, thereby further improving the safety and reliability of the cleaning process.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel self-unloading iron separator for lithium battery materials, characterized in that: Includes a geared motor (1) and a housing (2) located on one side of the geared motor (1). The output end of the geared motor (1) is connected to a main shaft (3). A rotating mechanism (4) is sleeved on the surface of the main shaft (3) and installed inside the housing (2). A permanent magnet rod (5) is connected to the surface of the rotating mechanism (4) by a bolt assembly. A movable plate (6) is connected to one end of the rotating mechanism (4). A sealing ring (8) is provided at the opening of the outer shell (2), and a scraping component (9) is provided on one side of the sealing ring (8). The permanent magnet (5) is provided through the scraping component (9). Two sets of linear bearings (10) are symmetrically arranged on the outer shell (2). Each set of linear bearings (10) has two members arranged along the same horizontal line. Each set of linear bearings (10) has a guide rod (11) inserted inside. One end of the guide rod (11) is connected to the movable plate (6). Two cylinders (12) are symmetrically arranged on the surface of the outer shell (2). The output end of the cylinder (12) is connected to the movable plate (6). The cylinder (12) moves and drives the movable plate (6) to move axially, thereby driving the permanent magnet rod (5) on the rotating mechanism (4) to reciprocate along the inner cavity of the scraping component (9).

2. The novel self-unloading iron separator for lithium battery materials according to claim 1, characterized in that: The main shaft (3) is square in shape.

3. The novel self-unloading iron separator for lithium battery materials according to claim 1, characterized in that: The rotating mechanism (4) includes a PTFE bushing (41), a turntable (42), a round bushing (43), and a threaded cap (44). The PTFE bushing (41) is fitted onto the main shaft (3); The round bushing (43) is fixedly connected to the middle of the surface of the turntable (42) and is sleeved on the PTFE bushing (41). The threaded cap (44) is located at one end of the round bushing (43).

4. The novel self-unloading iron separator for lithium battery materials according to claim 3, characterized in that: One end of the threaded cap (44) is mounted on the movable plate (6) through a round nut (401), a round nut retaining washer (402) and a tapered roller bearing (403).

5. The novel self-unloading iron separator for lithium battery materials according to claim 1, characterized in that: The surface of the movable plate (6) is provided with a bearing cover (13).

6. The novel self-unloading iron separator for lithium battery materials according to claim 1, characterized in that: Limit switches (7) are provided on the movable plate (6).

7. The novel self-unloading iron separator for lithium battery materials according to claim 1, characterized in that: The scraping assembly (9) includes a pattern plate (91), a scraper sleeve (92), and a pressure plate (93); The flower plate (91) is located on one side of the sealing ring (8), and its surface has a plurality of round holes corresponding to a plurality of permanent magnet rods (5); The scraper sleeve (92) is disposed in the round hole of the flower plate (91); The pressure plate (93) is bolted to the tube sheet (91).

8. The novel self-unloading iron separator for lithium battery materials according to claim 1, characterized in that: A stop (111) is provided at one end of the guide rod (11).

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