Sorting structure for dry powder material de-ironing separator
By installing elastic parts and non-metallic bushings in the dry powder material iron remover, the problems of sliding and friction between the medium disk layers are solved, the magnetic separation effect and the convenience of equipment maintenance are improved, and the demand for high-precision iron removal is met.
Patent Information
- Application Number
- CN202422561140.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-23
AI Technical Summary
During the operation of existing electromagnetic dry powder magnetic separators, sliding and friction between the medium disk layers generate new magnetic foreign matter, and the nuts are prone to locking, resulting in poor magnetic separation effect and making it difficult to meet the increasingly stringent iron removal requirements.
An elastic part is set between the medium group and the medium rod to provide stable preload, buffer vibration, and reduce sliding and friction between magnetic medium layers. A non-metallic bushing is used to isolate the magnetic medium and the medium rod to avoid friction and the generation of new magnetic foreign matter. The elastic part is positioned by a nut for easy disassembly.
It effectively reduces the mutual friction between magnetic media and the generation of new magnetic foreign matter, improves the magnetic separation index, ensures the stable operation of the equipment, and simplifies the maintenance process.
Smart Images
Figure CN223475235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic separation equipment for materials, and specifically to a sorting structure for iron removal in dry powder materials. Background Technology
[0002] During the preparation of battery cathode materials, magnetic metal impurities are inevitably introduced. These impurities can cause problems such as internal short circuits and increased self-discharge, which can seriously affect the safety performance of the battery. Therefore, battery manufacturers need to strictly control the content of magnetic foreign matter in raw materials. In recent years, battery manufacturers have become increasingly strict in their requirements for magnetic foreign matter in raw materials, with the content of magnetic foreign matter in most raw materials increasing from the PPM (parts per million) level to the PPB (parts per billion) level. Faced with increasingly stringent iron removal requirements, it is essential to ensure that no new magnetic foreign matter appears during the operation of the electromagnetic dry powder iron separator.
[0003] Electromagnetic dry powder separators primarily rely on magnetically conductive media discs to adsorb magnetic particles during operation. Typically, multiple media discs are strung together on a media rod to form a media group, and dozens of media discs are fixed to the media rod by threaded clamping, or multiple media discs can be placed freely inside the sorting chamber. During the iron removal process, the vibrating motor drives the media group to vibrate, and the entire media group forms a rigid moving body. Threaded clamping alone is insufficient to completely secure all the media discs, leading to slippage between media disc layers. This causes friction between the media discs and the media rod, as well as between the media discs themselves, generating new magnetic foreign matter that contaminates the material. Furthermore, in dusty environments, after prolonged operation, the nuts used for threaded clamping are prone to seizing during disassembly, making it impossible to remove the media discs.
[0004] Therefore, developing a sorting structure that can buffer the vibration between magnetic media in the media group when the vibrating motor is working, reduce the interlayer sliding and mutual friction of the magnetic media, and avoid the generation of new magnetic foreign objects during the magnetic separation process is an urgent problem to be solved at this stage. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides a sorting structure for a dry powder material iron remover. An elastic element is disposed between the first contact surface and the medium group. The elastic element can apply a stable preload to the medium group to ensure that the position of the magnetic medium is relatively fixed. During the iron removal process, the vibrating motor works, and the elastic element can dampen the vibration, buffer the vibration of the magnetic medium, counteract the interlayer sliding of the magnetic medium, reduce the mutual friction between the magnetic medium, avoid the generation of new magnetic foreign objects, and improve the magnetic separation index.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] This utility model provides a sorting structure for a dry powder material iron remover, comprising:
[0008] A medium rod, one end of which has a first abutting surface and the other end of which has a limiting portion;
[0009] A medium assembly is disposed on the medium rod and located between the first contact surface and the limiting portion; the medium assembly includes a plurality of magnetic media, which are distributed along the axial direction of the medium rod.
[0010] An elastic element is located between the first contact surface and the medium assembly; the elastic element is in a compressed state, and the elastic element causes the medium assembly to tend to move away from the first contact surface.
[0011] As a preferred technical solution, the medium assembly further includes a plurality of bushings, each bushing corresponding to a magnetic medium; the bushings are sleeved on the medium rod and have a clearance fit with the medium rod, and the magnetic medium is disposed on the bushings.
[0012] As a preferred technical solution, the bushing is made of non-metallic material.
[0013] As a preferred technical solution, the magnetic medium is configured as a medium disk, the medium disk including a connecting ring, a plurality of vertical stiffeners and a plurality of medium strips; the vertical stiffeners are located below the medium strips, the vertical stiffeners and the medium strips are staggered and connected to each other, and at least one vertical stiffener and / or at least one medium strip is fixedly connected to the connecting ring.
[0014] As a preferred technical solution, the outer circumferential surface of the bushing has a stepped positioning surface, and the connecting ring is sleeved on the outside of the bushing and abuts against the stepped positioning surface.
[0015] As a preferred technical solution, the connecting ring is located at the center of the media disk;
[0016] And / or, a plurality of the vertical stiffening plates are arranged parallel to each other, a plurality of the medium strips are arranged parallel to each other, and the vertical stiffening plates and the medium strips are arranged perpendicular to each other;
[0017] And / or, both the connecting ring and the vertical stiffener are made of non-magnetic stainless steel.
[0018] And / or, the medium strip is made of magnetically conductive stainless steel.
[0019] As a preferred technical solution, the medium rod is vertically arranged, the limiting part is located at the lower end of the medium rod, and the outer diameter of the limiting part is larger than the inner diameter of the bushing.
[0020] As a preferred technical solution, the medium rod is provided with two spring seats, which are sleeved on the medium rod and have a clearance fit with the medium rod; the first abutment surface is provided on the upper spring seat, the lower spring seat abuts against the medium assembly, and the lower spring seat is provided with a second abutment surface; the two ends of the elastic member abut against the first abutment surface and the second abutment surface, respectively.
[0021] As a preferred technical solution, the upper end of the medium rod is provided with a nut that is threadedly connected to it, and both spring seats are located between the nut and the medium assembly, with the upper spring seat abutting against the nut;
[0022] And / or, the elastic element is a cylindrical spring, which is sleeved on the medium rod.
[0023] As a preferred technical solution, the medium rod is connected to a vibration motor, which can drive the medium rod to vibrate in the vertical direction.
[0024] The beneficial effects of this utility model are as follows:
[0025] 1. The medium rod of this utility model has a first contact surface, the medium group is disposed on the medium rod and positioned by the limiting part, and the elastic element is disposed between the first contact surface and the medium group. The elastic element can apply a stable preload to the medium group to ensure that the position of the magnetic medium is relatively fixed. During the iron removal process, the vibrating motor works. At this time, the elastic element can play the role of damping vibration, which can buffer the vibration of the magnetic medium, counteract the interlayer sliding of the magnetic medium, reduce the mutual friction between the magnetic media, avoid the generation of new magnetic foreign objects, and thus improve the magnetic separation index.
[0026] 2. In this utility model, the magnetic medium is set on the bushing. The bushing is made of non-metallic material. When the vibration motor is working, the bushing separates the magnetic medium from the medium rod, which can prevent friction between the magnetic medium and the medium rod and further avoid the generation of new magnetic foreign objects.
[0027] 3. The nut of this utility model is used to position the elastic sheet and adjust the compression of the elastic element. It does not need to be in direct contact with the medium group, and will not lock up during disassembly. It is simple to install and easy to maintain. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the sorting structure for a dry powder material iron remover according to the present invention;
[0029] Figure 2 for Figure 1 Enlarged view of region A in the middle;
[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the magnetic medium and bushing in the middle;
[0031] Figure 4 for Figure 3 A top view of the magnetic medium in the image;
[0032] Figure 5 for Figure 1 A schematic diagram of the bushing structure.
[0033] In the figure: 1-medium rod, 11-limiting part, 2-magnetic medium, 21-connecting ring, 22-vertical stiffener plate, 23-medium strip, 3-elastic element, 4-bushing, 41-step positioning surface, 5-spring seat, 51-first abutting surface, 52-second abutting surface, 6-nut. Detailed Implementation
[0034] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0035] Please refer to Figures 1-5 This invention provides an embodiment of a sorting structure for a dry powder material iron remover, comprising a media rod 1, with a first abutment surface 51 at the upper end and a limiting part 11 at the lower end, the limiting part 11 supporting a media group; the media group is disposed on the media rod 1 and located between the first abutment surface 51 and the limiting part 11; the media group includes several magnetic media 2, which are distributed along the axial direction of the media rod 1; an elastic element 3 is located between the first abutment surface 51 and the media group; the elastic element 3 is in a compressed state, causing the media group to tend to move away from the first abutment surface 51; the elastic element 3 can apply a stable preload to the media group, ensuring that the position of the magnetic media 2 is relatively fixed; during the iron removal process, the vibrating motor operates, and the elastic element 3 can dampen the vibration, buffer the vibration of the magnetic media 2, and counteract the interlayer sliding of the magnetic media 2, reducing the mutual friction between adjacent magnetic media 2, avoiding the generation of new magnetic foreign matter, thereby improving the magnetic separation index.
[0036] It should be noted that the medium rod 1 should be connected to a vibration motor. During the iron removal process, the vibration motor can drive the medium rod 1 to vibrate in the vertical direction, thereby causing the medium group to vibrate and promoting the magnetic particles to fall off the magnetic medium 2.
[0037] In this embodiment, please refer to Figure 3 and Figure 5The medium assembly also includes several bushings 4, each corresponding to a magnetic medium 2. The bushings 4 are fitted onto the medium rod 1 and are in clearance fit with the medium rod 1. The magnetic medium 2 is disposed on the bushings 4 and is distributed sequentially along the axial direction of the medium rod 1 through the bushings 4. The bushings 4 can prevent friction between the magnetic medium 2 and the medium rod 1 and avoid the generation of new magnetic foreign matter.
[0038] It should be noted that the bushing 4 should be made of non-metallic materials such as nylon. When the vibrating motor is working, the bushing 4 will not generate magnetic foreign objects when it rubs against the medium rod 1 and the magnetic medium 2 respectively.
[0039] In this embodiment, please refer to Figure 1 and Figure 4 The magnetic medium 2 is configured as a medium disk, which includes a connecting ring 21, a plurality of vertical ribs 22, and a plurality of medium strips 23. The vertical ribs 22 are located below the medium strips 23, and the vertical ribs 22 and the medium strips 23 are staggered and connected to each other. At least one vertical rib 22 and / or at least one medium strip 23 is fixedly connected to the connecting ring 21, thereby achieving mutual fixation between the connecting ring 21, the vertical ribs 22, and the medium strips 23. Specifically, the plurality of vertical ribs 22 are arranged in parallel to each other, the plurality of medium strips 23 are arranged in parallel to each other, and the vertical ribs 22 and the medium strips 23 are arranged perpendicular to each other, which facilitates production and assembly while also providing a good sorting effect. In other embodiments, the medium strips 23 in the medium disk can also be corrugated structures, based on the requirement of efficient material sorting.
[0040] It should be noted that the connecting ring 21 and the vertical stiffener plate 22 should both be made of non-magnetic stainless steel. The connecting ring 21 and the vertical stiffener plate 22 will not generate magnetism under the action of an external magnetic field and will not attract magnetic particles. The medium strip 23 should be made of magnetic stainless steel. The medium strip 23 can generate magnetism under the action of an external magnetic field and can attract magnetic particles. When the external magnetic field disappears, the magnetism of the medium strip 23 will also disappear. Under the action of the vibration motor, the magnetic particles adhering to the medium strip 23 can be easily detached.
[0041] For details, please refer to Figure 4 The connecting ring 21 should be located at the center of the media disk. When the media disk is installed on the media rod 1, the center of gravity of the media disk is located on the media rod 1, which can ensure the stability of the media disk position.
[0042] For further details, please refer to Figure 3 and Figure 5 The bushing 4 has a stepped positioning surface 41 on its outer circumferential surface. The connecting ring 21 is sleeved on the outside of the bushing 4 and abuts against the stepped positioning surface 41, so that the medium disk can be stably fixed on the bushing 4.
[0043] For further details, please refer to... Figure 1The medium rod 1 is vertically arranged, and the limiting part 11 is located at the lower end of the medium rod 1. The outer diameter of the limiting part 11 is larger than the inner diameter of the bushing 4. The limiting part 11 can limit and support the medium group from the bottom.
[0044] In this embodiment, please refer to Figure 1 and Figure 2 Two spring seats 5 are provided on the medium rod 1. The spring seats 5 are sleeved on the medium rod 1 and are in clearance fit with the medium rod 1. The first abutment surface 51 is provided on the upper spring seat 5, and the lower spring seat 5 abuts against the medium assembly. The lower spring seat 5 is provided with a second abutment surface 52. The two ends of the elastic member 3 abut against the first abutment surface 51 and the second abutment surface 52 respectively. This facilitates installation and allows for convenient adjustment of the position and compression amount of the elastic member 3 according to the height of the medium assembly. In other embodiments, the first abutment surface 51 can also be directly provided on the medium rod 1, and the second abutment surface 52 can also be directly provided on the medium assembly, as long as the elastic member 3 can apply a stable elastic force to the medium assembly through the first abutment surface 51 and the second abutment surface 52.
[0045] Based on the foregoing embodiments, please refer to Figure 1 and Figure 2 The upper end of the medium rod 1 is provided with a nut 6 that is threadedly connected to it. Two spring seats 5 are located between the nut 6 and the medium assembly. The upper spring seat 5 abuts against the nut 6, which can position the upper spring seat 5. Furthermore, the compression amount of the elastic element 3 can be easily adjusted by rotating the nut 6, thereby controlling the preload of the elastic element 3 on the medium assembly. Specifically, it is preferable to provide two nuts 6, which can improve the stability of the positioning of the spring seat 5.
[0046] For details, please refer to Figure 1 and Figure 2 The elastic element 3 is preferably a cylindrical spring, which is sleeved on the medium rod 1; in other embodiments, the elastic element 3 may also be a spring or sheet of other shapes, as long as it can apply a stable elastic force to the medium assembly.
[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 sorting structure for a dry powder material iron remover, characterized in that, include: Medium rod (1), one end of the medium rod (1) has a first abutting surface (51), and the other end of the medium rod (1) has a limiting part (11); A medium assembly is disposed on the medium rod (1) and located between the first contact surface (51) and the limiting part (11); the medium assembly includes a plurality of magnetic media (2), and the plurality of magnetic media (2) are distributed along the axial direction of the medium rod (1); An elastic element (3) is located between the first contact surface (51) and the medium assembly; the elastic element (3) is in a compressed state, and the elastic element (3) causes the medium assembly to tend to move away from the first contact surface (51).
2. The sorting structure for a dry powder material iron remover according to claim 1, characterized in that, The medium assembly also includes several bushings (4), each bushing (4) corresponding to a magnetic medium (2); the bushing (4) is sleeved on the medium rod (1) and has a clearance fit with the medium rod (1), and the magnetic medium (2) is disposed on the bushing (4).
3. The sorting structure for a dry powder material iron remover according to claim 2, characterized in that, The bushing (4) is made of non-metallic material.
4. The sorting structure for a dry powder material iron remover according to claim 2, characterized in that, The magnetic medium (2) is configured as a medium disk, which includes a connecting ring (21), a plurality of vertical stiffeners (22) and a plurality of medium strips (23); the vertical stiffeners (22) are located below the medium strips (23), the vertical stiffeners (22) and the medium strips (23) are staggered and connected to each other, and at least one vertical stiffener (22) and / or at least one medium strip (23) is fixedly connected to the connecting ring (21).
5. The sorting structure for a dry powder material iron remover according to claim 4, characterized in that, The bushing (4) has a stepped positioning surface (41) on its outer peripheral surface, and the connecting ring (21) is sleeved on the outside of the bushing (4) and abuts against the stepped positioning surface (41).
6. The sorting structure for a dry powder material iron remover according to claim 4, characterized in that, The connecting ring (21) is located at the center of the medium disk; And / or, a plurality of the vertical stiffeners (22) are arranged in parallel to each other, a plurality of the medium strips (23) are arranged in parallel to each other, and the vertical stiffeners (22) and the medium strips (23) are arranged perpendicular to each other; And / or, both the connecting ring (21) and the vertical stiffener plate (22) are made of non-magnetic stainless steel. And / or, the medium strip (23) is made of magnetically conductive stainless steel.
7. The sorting structure for a dry powder material iron remover according to claim 2, characterized in that, The medium rod (1) is vertically arranged, and the limiting part (11) is located at the lower end of the medium rod (1). The outer diameter of the limiting part (11) is larger than the inner diameter of the bushing (4).
8. A sorting structure for a dry powder material iron remover according to claim 7, characterized in that, The medium rod (1) is provided with two spring seats (5), the spring seats (5) are sleeved on the medium rod (1) and are in clearance fit with the medium rod (1); the first abutting surface (51) is provided on the upper spring seat (5), the lower spring seat (5) abuts against the medium assembly, the lower spring seat (5) is provided with a second abutting surface (52), and the two ends of the elastic member (3) abut against the first abutting surface (51) and the second abutting surface (52) respectively.
9. A sorting structure for a dry powder material iron remover according to claim 8, characterized in that, The upper end of the medium rod (1) is provided with a nut (6) threadedly connected to it, and the two spring seats (5) are located between the nut (6) and the medium assembly, with the upper spring seat (5) abutting against the nut (6); And / or, the elastic element (3) is configured as a cylindrical spring, which is sleeved on the medium rod (1).
10. A sorting structure for a dry powder material iron remover according to claim 7, characterized in that, The medium rod (1) is connected to a vibration motor, which can drive the medium rod (1) to vibrate in the vertical direction.