A demagnetization device

Abstract

The present invention discloses a demagnetization device, including: a base, a threaded rod, a driving motor, a first gear, a rack, a connecting rod, a worm, a worm wheel, a mounting plate, a sliding rod, a second gear, a third gear, a fourth gear, a fifth gear, a connecting arm, a connecting spindle, a magnetic rod, a connecting sleeve, a mounting arm, a cover barrel and a feed inlet. The slurry is input through the feed inlet at the bottom end of the cover barrel, and the slurry enters the top end of the cover barrel from the bottom end during the input process, which can ensure that the slurry is fully in contact with the stirring component in the process from bottom to top, thereby demagnetizing the slurry. At the same time, since the stirring component is provided with multiple groups, when the moving component drives the stirring component to move up and down, the stirring component can stir different areas in the cover barrel at the same time, further ensuring that the stirring component is fully in contact with the slurry, thereby achieving a good demagnetization effect.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of battery processing, and in particular to a demagnetization device. Background Art

[0002] With the development of the new energy industry, the energy density and driving range of lithium batteries have been improved, and their application scope has become wider and wider. With the improvement of battery performance, its safety issues have become increasingly prominent. One of the important measures is to control the magnetic impurities introduced during the production process.

[0003] However, the magnetic bars of the existing demagnetization devices are all in a static state and fail to fully contact with the slurry; due to the lack of full contact, the demagnetization effect is poor. Summary of the invention

[0004] The object of the present invention is to provide a demagnetization device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a demagnetization device, comprising:

[0006] A base, wherein a cover barrel for placing slurry is arranged on the base, and a feed port is opened at the bottom end of the cover barrel;

[0007] A stirring assembly, wherein the stirring assembly is provided in multiple groups and the stirring assembly is used to stir different areas in the cover barrel;

[0008] The moving component is arranged on the base, and is used for driving the stirring component to rotate and stir when moving up and down.

[0009] Preferably, the moving assembly includes a threaded rod, a sliding rod and a mounting plate, the threaded rod and the sliding rod are respectively arranged on both sides of the base, the threaded rod is rotatably connected to the base, the sliding rod is fixedly connected to the base, one end of the mounting plate is threadedly connected to the threaded rod, and the other end is slidably connected to the sliding rod, a driving motor is fixed on the base, the output end of the driving motor is connected to the threaded rod, and a linkage assembly is arranged on the mounting plate, and the linkage assembly drives the stirring assembly to rotate when the mounting plate moves up and down.

[0010] Preferably, the linkage assembly includes a first gear and a rack, a mounting groove is opened on the base, the rack is fixed in the mounting groove, the first gear is fixedly connected with a connecting rod, the connecting rod is connected with a worm, the worm is arranged on a mounting plate, the mounting plate is rotatably connected with a worm wheel, the worm wheel is meshed with the worm, the first gear is meshed with the rack, the worm wheel is connected with a driving assembly, and the driving assembly is used to drive multiple groups of stirring assemblies to rotate simultaneously.

[0011] Preferably, the driving assembly includes a second gear and a third gear, the worm gear and the second gear are coaxially arranged, a connecting rod is fixedly passed through the center of the second gear, the connecting rod is connected to a plurality of mounting arms at equal angles along the circumferential direction, the third gear is rotated at the top end of the mounting arm, the fourth gear is rotated at the bottom end of the mounting arm, the fourth gear and the third gear are coaxially connected through a connecting rod, the second gear and the third gear are meshed, a fifth gear is rotated at the bottom end of the mounting arm, the fifth gear is meshed with the fourth gear, and the fifth gear is connected to a stirring assembly.

[0012] Preferably, the stirring assembly includes a connecting arm and a connecting main shaft, one end of the connecting arm is connected to the fifth gear, and the other end is connected to the connecting main shaft, a number of connecting sleeves are evenly arranged on the connecting main shaft, and magnetic rods are connected to both sides of the connecting sleeves.

[0013] Preferably, the connecting spindle and the connecting sleeve are threadedly connected.

[0014] Preferably, the connection angle between the magnetic bar and the connecting main axis is 60°.

[0015] Preferably, the connecting main shaft, the connecting sleeve and the cover barrel are all made of ceramic materials.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The slurry is input through the feed port at the bottom of the cover barrel. During the input process, the slurry enters the top of the cover barrel from the bottom of the cover barrel, which ensures that the slurry is in full contact with the stirring component from bottom to top, thereby demagnetizing the slurry. At the same time, since there are multiple groups of stirring components, when the moving component drives the stirring component to move up and down, the stirring component can stir different areas in the cover barrel at the same time, further ensuring that the stirring component is in full contact with the slurry and achieving a good demagnetization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention;

[0020] Figure 3 for Figure 2 A in the enlarged view;

[0021] Figure 4 It is a connection schematic diagram of the present invention;

[0022] Figure 5 for Figure 4 The enlarged view of point B in the figure;

[0023] Figure 6 This is a schematic diagram of the magnetic bar connection;

[0024] Figure 7 This is a schematic diagram of the overall structure of Example 2 of the present application.

[0025] In the figure: 1. base; 2. threaded rod; 3. drive motor; 4. first gear; 5. rack; 6. connecting rod; 7. worm; 8. worm wheel; 9. mounting plate; 10. slide rod; 11. second gear; 12. third gear; 13. fourth gear; 14. fifth gear; 15. connecting arm; 16. connecting main shaft; 17. magnetic rod; 18. connecting sleeve; 19. mounting arm; 20. cover barrel; 21. feed port. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 6 The present invention provides a technical solution: a demagnetization device, comprising:

[0029] A base 1 is provided with a cover barrel 20 for placing slurry, and a feed inlet 21 is provided at the bottom of the cover barrel 20; a discharge outlet (not shown) is provided at the top of the cover barrel 20;

[0030] A stirring assembly, wherein the stirring assembly is provided in multiple groups and the stirring assembly is used to stir different areas in the cover barrel 20;

[0031] The moving component is arranged on the base 1, and is used to drive the stirring component to rotate and stir when moving up and down.

[0032] The slurry is input through the feed port 21 at the bottom end of the cover barrel 20. During the input process, the slurry enters the top end of the cover barrel 20, which ensures that the slurry is in full contact with the stirring component from bottom to top, thereby demagnetizing the slurry. At the same time, since there are multiple groups of stirring components, when the moving component drives the stirring component to move up and down, the stirring component can stir different areas in the cover barrel 20 at the same time, further ensuring that the stirring component is in full contact with the slurry and achieving a good demagnetization effect.

[0033] In this embodiment, the moving component includes a threaded rod 2, a sliding rod 10 and a mounting plate 9, the threaded rod 2 and the sliding rod 10 are respectively arranged on both sides of the base 1, the threaded rod 2 is rotatably connected to the base 1, the sliding rod 10 is fixedly connected to the base 1, one end of the mounting plate 9 is threadedly connected to the threaded rod 2, and the other end is slidably connected to the sliding rod 10, a driving motor 3 is fixed on the base 1, the output end of the driving motor 3 is connected to the threaded rod 2, and a linkage component is arranged on the mounting plate 9, and the linkage component drives the stirring component to rotate when the mounting plate 9 moves up and down.

[0034] The threaded rod 2 is driven to rotate by the driving motor 3, and then the mounting plate 9 moves in the vertical direction along the sliding rod 10, and then the stirring assembly is driven to move in the vertical direction, so as to stir and demagnetize the slurry in the cover barrel 20.

[0035] In this embodiment, the linkage assembly includes a first gear 4 and a rack 5. A mounting groove is opened on the base 1, and the rack 5 is fixed in the mounting groove. The first gear 4 is fixedly connected to a connecting rod 6, and a worm 7 is connected to the connecting rod 6. The worm 7 is arranged on a mounting plate 9. The mounting plate 9 is rotatably connected to a worm wheel 8, and the worm wheel 8 is meshed with the worm 7. The first gear 4 is meshed with the rack 5, and the worm wheel 8 is connected to a driving assembly, and the driving assembly is used to drive multiple groups of stirring assemblies to rotate simultaneously.

[0036] As the mounting plate 9 moves in the vertical direction along the slide bar 10 and the first gear 4 and the rack 5 mesh, the first gear 4 is driven to rotate, the driving connecting rod 6 and the worm 7 are driven to rotate, and the worm wheel 8 and the driving assembly are driven to rotate.

[0037] In this embodiment, the driving assembly includes a second gear 11 and a third gear 12, the worm gear 8 and the second gear 10 are coaxially arranged, a connecting rod is fixedly passed through the center of the second gear 10, and the connecting rod is connected to a plurality of mounting arms 19 at equal angles along the circumferential direction, the third gear 12 is rotated at the top of the mounting arm 19, and the fourth gear 13 is rotated at the bottom of the mounting arm 19, and the fourth gear 13 and the third gear 12 are coaxially connected through a connecting rod, the second gear 11 and the third gear 12 are meshed, and a fifth gear 14 is rotated at the bottom of the mounting arm 19, and the fifth gear 14 is meshed with the fourth gear 13, and the fifth gear 14 is connected to a stirring assembly.

[0038] As the worm gear 8 rotates, the second gear 10 is driven to rotate. As the second gear 10 meshes with multiple sets of third gears 12, the third gear 12 and the fourth gear 13 are driven to rotate coaxially. As the fifth gear 14 meshes with the fourth gear 13, the stirring components connected to the fifth gear 14 are driven to rotate, thereby stirring different areas in the barrel 20.

[0039] In this embodiment, the stirring assembly includes a connecting arm 15 and a connecting main shaft 16, one end of the connecting arm 15 is connected to the fifth gear 14, and the other end is connected to the connecting main shaft 16, and a plurality of connecting sleeves 18 are evenly arranged on the connecting main shaft 16, and magnetic bars 17 are connected to both sides of the connecting sleeve 18. The magnetic bars 17 are arranged to fully contact and demagnetize the slurry.

[0040] In this embodiment, the connecting main shaft 16 and the connecting sleeve 18 are threadedly connected. By threading the connecting main shaft 16 and the connecting sleeve 18, the number of magnetic bars 17 can be increased or decreased as needed, and the distance between the magnetic bars 17 can also be adjusted as needed. At the same time, after the stirring is completed, the magnetic bars 17 can be disassembled and cleaned.

[0041] The magnetic bar can be a Φ25*125mm cylinder with a magnetic flux higher than 10,000 Gauss. The distance between the magnetic bars is 5-15mm. The number of magnetic bars depends on the demagnetization effect requirements, generally greater than or equal to 5 rows, 2-4 columns.

[0042] In this embodiment, the connection angle between the magnetic rod 17 and the connecting main shaft 16 is 60°. By setting the angle, the path and duration of contact between the slurry and the magnetic rod 17 are extended during the process of the slurry being input into the hood barrel 20 from bottom to top, thereby increasing the demagnetization effect of the slurry.

[0043] The gap between the connecting main shaft 16 and the cover barrel 20 is 5-15mm.

[0044] In this embodiment, the connecting spindle 16, the connecting sleeve 18 and the cover barrel 20 are all made of ceramics;

[0045] The connecting main shaft 16, the connecting sleeve 18 and the cover barrel 20 are made of ceramic material, which ensures that all parts in the cover barrel 20 except the magnetic rod 17 are made of ceramic, thereby avoiding the introduction of metal impurities into the connecting main shaft 16, the connecting sleeve 18 and the cover barrel 20 to cause safety problems.

[0046] The working principle and use process of the present invention are as follows: when in use, the slurry enters from the feed port 21 at the bottom of the cover barrel 20, the driving motor 3 drives the threaded rod 2 to rotate, and then the mounting plate 9 moves in the vertical direction along the slide bar 10. Since the mounting plate 9 moves in the vertical direction along the slide bar 10, and the first gear 4 and the rack 5 are meshed, the first gear 4 is driven to rotate, the driving connecting rod 6 and the worm 7 are rotated, and then the worm wheel 8 is driven to rotate. Since the worm wheel 8 rotates, the second gear 10 is driven to rotate. Since the second gear 10 is meshed with multiple sets of third gears 12, the third gear 12 and the fourth gear 13 are driven to rotate coaxially. Since the fifth gear 14 is meshed with the fourth gear 13, the stirring components connected to the fifth gear 14 are driven to rotate, and then different areas in the cover barrel 20 are stirred. While the stirring components rotate at a uniform speed, the slurry also contacts with each level of magnetic rod 17 during the upward movement, giving full play to the role of the magnetic rod 17.

[0047] Embodiment 2:

[0048] like Figure 7 As shown, a demagnetization device includes: a cover barrel 20, a stirring assembly and a driving motor 3;

[0049] The stirring assembly includes a connecting main shaft 16, the driving motor 3 is installed on the cover barrel 20, the output end of the driving motor 3 is connected to the connecting main shaft 16, a plurality of connecting sleeves 18 are evenly arranged on the connecting main shaft 16, and magnetic rods 17 are connected to both sides of the connecting sleeves 18. The magnetic rods 17 are arranged to fully contact and remove the slurry.

[0050] The bottom end of the cover barrel 20 is provided with a feed inlet 21 ; the top end of the cover barrel 20 is provided with a discharge port (not shown in the figure).

[0051] In this embodiment, the connecting main shaft 16 and the connecting sleeve 18 are threadedly connected. By threading the connecting main shaft 16 and the connecting sleeve 18, the number of magnetic bars 17 can be increased or decreased as needed, and the distance between the magnetic bars 17 can also be adjusted as needed. At the same time, after the stirring is completed, the magnetic bars 17 can be disassembled and cleaned.

[0052] The magnetic bar can be a Φ25*125mm cylinder with a magnetic flux higher than 10,000 Gauss. The distance between the magnetic bars is 5-15mm. The number of magnetic bars depends on the demagnetization effect requirements, generally greater than or equal to 5 rows, 2-4 columns.

[0053] In this embodiment, the connection angle between the magnetic rod 17 and the connecting main shaft 16 is 60°. By setting the angle, the path and duration of contact between the slurry and the magnetic rod 17 are extended during the process of the slurry being input into the hood barrel 20 from bottom to top, thereby increasing the demagnetization effect of the slurry.

[0054] The gap between the connecting main shaft 16 and the cover barrel 20 is 5-15mm.

[0055] In this embodiment, the connecting main shaft 16, the connecting sleeve 18 and the cover barrel 20 are all made of ceramic materials.

[0056] Use the device to perform demagnetization test:

[0057] 1. Take the slurry before and after demagnetization, add solvent to dilute, and add the test magnetic bar to stir for 30 minutes to adsorb the magnetic substance. After stirring, clean the magnetic bar with pure water, and then use acid to dissolve the metal impurities adsorbed on the magnetic bar to prepare a solution;

[0058] 2. Use ICP to test the content of metal impurities in the solution;

[0059] Test results:

[0060]

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A demagnetization device, characterized in that: include: A base (1), wherein a cover barrel (20) for placing slurry is arranged on the base (1), and a feed port (21) is provided at the bottom end of the cover barrel (20); A stirring assembly, wherein a plurality of stirring assemblies are provided, and the stirring assemblies are used to stir different areas in the cover barrel (20); A moving component is arranged on a base (1), and is used to drive the stirring component to rotate and stir when moving up and down.

2. A demagnetization device according to claim 1, characterized in that: The moving assembly comprises a threaded rod (2), a sliding rod (10) and a mounting plate (9); the threaded rod (2) and the sliding rod (10) are respectively arranged on both sides of the base (1); the threaded rod (2) is rotatably connected to the base (1); the sliding rod (10) is fixedly connected to the base (1); one end of the mounting plate (9) is threadedly connected to the threaded rod (2) and the other end is slidably connected to the sliding rod (10); a driving motor (3) is fixed on the base (1); the output end of the driving motor (3) is connected to the threaded rod (2); a linkage assembly is arranged on the mounting plate (9); the linkage assembly drives the stirring assembly to rotate when the mounting plate (9) moves up and down.

3. A demagnetization device according to claim 2, characterized in that: The linkage assembly comprises a first gear (4) and a rack (5); a mounting groove is provided on the base (1); the rack (5) is fixed in the mounting groove; the first gear (4) is fixedly connected to a connecting rod (6); the connecting rod (6) is connected to a worm (7); the worm (7) is arranged on a mounting plate (9); the mounting plate (9) is rotatably connected to a worm wheel (8); the worm wheel (8) is meshed with the worm (7); the first gear (4) is meshed with the rack (5); the worm wheel (8) is connected to a driving assembly; the driving assembly is used to drive multiple groups of stirring assemblies to rotate simultaneously.

4. A demagnetization device according to claim 3, characterized in that: The driving assembly comprises a second gear (11) and a third gear (12); the worm gear (8) and the second gear (10) are coaxially arranged; a connecting rod is fixedly passed through the center of the second gear (10); the connecting rod is connected to a plurality of mounting arms (19) at equal angles along the circumferential direction; the third gear (12) is rotated at the top end of each mounting arm (19); the fourth gear (13) is rotated at the bottom end of the mounting arm (19); the fourth gear (13) and the third gear (12) are coaxially connected through the connecting rod; the second gear (11) and the third gear (12) are meshed; a fifth gear (14) is rotated at the bottom end of the mounting arm (19); the fifth gear (14) and the fourth gear (13) are meshed; and a stirring assembly is connected to the fifth gear (14).

5. A demagnetization device according to claim 4, characterized in that: The stirring assembly comprises a connecting arm (15) and a connecting main shaft (16); one end of the connecting arm (15) is connected to the fifth gear (14), and the other end is connected to the connecting main shaft (16); a plurality of connecting sleeves (18) are evenly arranged on the connecting main shaft (16); and magnetic rods (17) are connected to both sides of the connecting sleeves (18).

6. A demagnetization device according to claim 5, characterized in that: The connecting main shaft (16) and the connecting sleeve (18) are threadedly connected.

7. A demagnetization device according to claim 6, characterized in that: The connection angle between the magnetic bar (17) and the connecting main shaft (16) is 60°.

8. A demagnetization device according to claim 7, characterized in that: The connecting main shaft (16), the connecting sleeve (18) and the cover barrel (20) are all made of ceramic material.

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