Lithium battery electrode material sorting and conveying equipment

By using alternating magnetic field and water spray pipe in the lithium battery electrode material sorting equipment to break up the mixed material, and combining the magnetic separator and material discharge mechanism, the problem of electrode materials agglomeration during the sorting process is solved, and the purity and sorting efficiency of the material are improved.

CN119525020AInactive Publication Date: 2025-02-28LIYANG CHENGBANG MACHINERY
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Patent Information

Application Number
CN202510022567.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-02-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, lithium battery electrode materials are prone to aggregate during the sorting process, resulting in the low purity of the sorted electrode materials, which affects subsequent processing and use, and requires increasing the crushing and sorting process to reduce working efficiency.

Method used

A lithium battery electrode material sorting and conveying equipment is designed, using positive electrode magnetic blocks and negative electrode magnetic blocks to form an alternating magnetic field in the feeding silo, and the mixed materials are dispersed through the water jet pipe, combining with a magnetic separator and a discharge mechanism to achieve accurate separation of magnetic and non-magnetic materials.

Benefits of technology

Through the combined action of the alternating magnetic field and the water spray pipe, the mixed materials of the clumps can be effectively dispersed, the sorting effect is improved, the entrainment of metal materials is reduced, and the purity and sorting efficiency of the electrode material are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses lithium battery electrode material sorting and conveying equipment, and relates to the technical field of electrode material conveying equipment.The lithium battery electrode material sorting and conveying equipment comprises a support and further comprises a feeding box, the support is fixedly connected with a shell, the feeding box is arranged in the shell, and the top of the feeding box communicates with the output end of external mixed material conveying equipment; a water spraying pipe is mounted at the top of the feeding box, and the output end of the water spraying pipe points to the interior of the feeding box; and the sorting mechanism comprises a feeding bin, the feeding bin is arranged in the shell, and the bottom of the feeding bin communicates with the feeding box. According to the device, the sorting mechanism is arranged, an alternating magnetic field is formed in the feeding bin through the positive pole magnetic block and the negative pole magnetic block, meanwhile, the positive pole magnetic block with the size changing from small to large in the conveying direction of the feeding bin is arranged, a gradient magnetic field is formed when the positive pole magnetic block works, and materials with different magnetisms are repeatedly overturned and vibrated in the alternating magnetic field with the gradient; and agglomerated mixed materials are better scattered, and the dispersing effect of the mixed materials is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of electrode material conveying equipment, and in particular to a lithium battery electrode material sorting and conveying equipment. Background Art

[0002] Electrode material conveying equipment is a device suitable for conveying electrode materials. In the existing technology, when lithium battery electrode materials are sorted, recovered and conveyed, there will be a problem of mixed sorting of electrode materials and metal materials. When sorting some magnetic electrode materials and non-magnetic metal materials, a magnetic separator is usually used for sorting. The magnetic electrode materials are sorted out by the magnetic difference of the materials, which is convenient for the subsequent conveying of the electrode materials.

[0003] In the prior art, the mixed material is usually directly passed into the magnetic separator, and the mixed material is easy to clump during the sorting process. When the clumped mixed material is sorted, there is a lack of breaking up the clumped mixed material and preliminarily dispersing the magnetic and non-magnetic materials, which makes it easy for some metal materials to be entrained in the sorted electrode material, resulting in low purity of the sorted electrode material, affecting the subsequent processing and use of the electrode material, and requiring re-crushing and sorting, which increases the process and reduces work efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that there is a lack of means to break up the agglomerated mixed materials and to preliminarily disperse the magnetic and non-magnetic materials, which easily causes some metal materials to be entrained in the sorted electrode materials, resulting in low purity of the sorted electrode materials, and to propose a lithium battery electrode material sorting and conveying equipment.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a lithium battery electrode material sorting and conveying device, comprising a bracket, a housing is fixedly connected to the bracket, and further comprising:

[0006] A feeding box, the feeding box is arranged in the shell, and the top is connected to the output end of the external mixed material conveying equipment, and a water spray pipe is installed on the top of the feeding box, and the output end of the water spray pipe points to the inside of the feeding box;

[0007] The sorting mechanism comprises a feeding bin, the feeding bin is arranged in the shell, and the bottom is connected with the feeding box, a negative pole magnetic block is installed in the top wall of the feeding bin, and a positive pole magnetic block is installed in the bottom wall, the positive pole magnetic block and the negative pole magnetic block are located on both sides of the top opening of the feeding bin, and an alternating magnetic field is formed between the two when working, the volume of the positive pole magnetic block is larger than that of the negative pole magnetic block, and increases from small to large along the conveying direction of the feeding bin;

[0008] A magnetic separator, wherein the magnetic separator is installed in the housing, and the input end is connected to the top opening in the feed bin, and one output end is connected to a tailing pipe for discharging non-magnetic materials, and the other output end is connected to a fine material box for discharging magnetic materials, and the magnetic attraction intensity of the magnetic separator on the magnetic materials in the feed bin is greater than the magnetic attraction intensity of the alternating magnetic field on the magnetic materials in the feed bin;

[0009] The toggle assembly is connected to the housing, and the output end seal extends into the feed bin and is located between the positive pole magnetic block and the negative pole magnetic block, and is used to toggle the mixed liquid in the feed bin to the input end of the magnetic separator.

[0010] Preferably, the positive pole magnetic block is in the shape of a right-angled triangle, with the hypotenuse facing the negative pole magnetic block, and the right-angle end is located on the side close to the input end of the magnetic separator.

[0011] Preferably, a plurality of first hollow grooves are provided in the positive pole magnetic block, a magnetic frame is rotatably connected in the first hollow groove, and the magnetic frame rotates in a corresponding direction as the magnetic field changes in the alternating magnetic field.

[0012] Preferably, two groups of spiral rotating plates are fixedly connected to the magnetic frame.

[0013] Preferably, a plurality of second hollow grooves are formed on the top of the positive magnetic block, and the plurality of second hollow grooves are distributed one by one at intervals on both sides of the plurality of first hollow grooves.

[0014] Preferably, the magnetic separator includes a first motor, the first motor is mounted on a bracket, the output end of the first motor is coaxially fixedly connected with an end cover, the end cover is coaxially fixedly connected with a cylinder away from one end of the first motor, a magnet is arranged in the cylinder, the cylinder and the magnet are coaxially rotatably cooperated, one end of the magnet is rotatably connected to the bracket through a support shaft, the magnet is located at the bottom of the cylinder and between the bottom of the cylinder and the fine material box, the bottom of the cylinder and the inside of the shell form a magnetic separation channel, the bottom of the magnetic separation channel is connected with the top opening in the feeding bin, the end of the magnetic separation channel away from the feeding box is connected with the fine material box, a discharge water pipe is installed on the shell, the discharge water pipe is located above the fine material box, and is used to flush the magnetic material on the cylinder down and drop it into the fine material box, a discharge port is opened at one end of the fine material box of the magnetic separation channel, the discharge port is connected with the top of multiple tailing pipes, and the bottom ends of the multiple tailing pipes are sealed to pass through the shell and are connected with the outside world.

[0015] Preferably, side baffles are provided on both sides of the negative pole magnetic block, and the side baffles separate the discharge port and the negative pole magnetic block.

[0016] Preferably, the toggle assembly includes a second motor, which is mounted on the outer casing. The output end of the second motor is coaxially fixedly connected with a connecting shaft, and the connecting shaft is sealed and extends into the feeding bin at one end away from the second motor, and is coaxially fixedly connected with a hollow blade. The hollow blade rotates to push the mixed liquid in the feeding bin toward the connecting port between the bottom of the magnetic separation channel and the feeding bin.

[0017] Preferably, the hollow blade includes a rectangular frame, which is coaxially fixed on the connecting shaft, and a plurality of toggling leaves are fixedly connected inside the rectangular frame. The plurality of toggling leaves are evenly spaced and distributed, and the plurality of toggling leaves are tilted and arranged, and the plurality of toggling leaves located on both sides of the connecting shaft are symmetrically distributed.

[0018] Preferably, it also includes a discharge mechanism, a plurality of the discharge mechanisms correspond one to one with a plurality of tailing pipes, the discharge mechanism includes a third motor, the third motor is installed in the tailing pipe through a motor frame, the output end of the third motor is coaxially fixedly connected with an insulating shaft, the top of the insulating shaft is coaxially fixedly connected with a conductive column, both ends of the conductive column are electrically connected with conductive blocks, and the middle is fixedly connected with a permanent magnet sheet, two electromagnetic components are electrically and slidably installed on the conductive column, the two electromagnetic components are located one to one between the two conductive columns and the permanent magnet sheet, and the electromagnetic component includes an iron core with magnetic A magnetic block and a conductive coil, wherein the electromagnetic block and the conductive coil are electrically connected to the conductive column, the electromagnetic block is slidably connected to the conductive column, the conductive coil is sleeved in the electromagnetic block, the magnetic iron core in the electromagnetic block is opposite to the same-name magnetic poles of the permanent magnet sheet, the electromagnetic block and the conductive coil are opposite to the opposite-name magnetic poles of the permanent magnet sheet after being energized, collision switches are installed on both sides of the permanent magnet sheet, the electromagnetic block, the conductive coil and the collision switch are electrically connected to a control circuit, the control circuit is installed on a bracket, and the control circuit is used to de-energize the electromagnetic block and the conductive coil after the electromagnetic block contacts the collision switch;

[0019] The inner circumference of the electromagnetic block is fixedly connected with an embedding block, and the outer circumference of the conductive column is coaxially provided with a sliding groove, and the embedding block is slidably connected in the sliding groove;

[0020] An outer blade is coaxially fixedly connected to the outer circumference of the conductive column, and the outer blade is coaxially gap-matched with the inner circumference of the tailing pipe. The outer blade is located in a portion of the tailing pipe passing through the feed bin, and the inner layer of the outer blade is an insulator.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. In the present invention, a sorting mechanism is provided to form an alternating magnetic field in the feed bin through positive and negative magnetic blocks, and at the same time, a positive magnetic block whose volume increases from small to large along the conveying direction of the feed bin is provided, so that a gradient magnetic field is formed when the positive magnetic block works, so that materials with different magnetic properties are repeatedly flipped and vibrated in the alternating magnetic field with a gradient, so that the agglomerated mixed materials are better broken up, the dispersion effect of the mixed materials is improved, and it is convenient to more accurately separate the magnetic materials and non-magnetic materials in the subsequent magnetic separation, reduce the influence caused by the agglomeration of materials, and improve the sorting effect.

[0023] 2. In the present invention, by providing a first hollow groove, a magnetic frame and a second hollow groove, when the alternating magnetic field starts to operate, the magnetic frame will also rotate along the guiding direction of the magnetic field, so that the spiral rotating sheets thereon can continuously cut the magnetic field lines at different angles and positions, thereby enhancing the electromagnetic induction effect; and the setting of the hollow groove weakens the magnetic field strength of the part of the positive magnetic block having the hollow groove, further improving the local alienated distribution of the magnetic field of the positive magnetic block, forming a more complex magnetic field gradient, and thus more accurately separating materials of different magnetic properties when processing a mixture of electrode materials with large magnetic differences.

[0024] 3. In the present invention, a discharge mechanism is provided to control the two electromagnetic components to be periodically powered on and off, thereby cooperating with the permanent magnet sheet to make the two electromagnetic components reciprocate on the conductive column. During the collision between the electromagnetic component and the permanent magnet sheet, the instantaneous magnetic field strength is significantly enhanced, which is beneficial to exert an instantaneous strong magnetic force on the magnetic particles in the mixed material, and is beneficial to the pretreatment effect of the mixed material after the mixed material is united, reducing the burden of subsequent processing and improving the sorting efficiency and quality; at the same time, the outer blades are controlled to rotate, which is convenient for clearing the material passing through the tail pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a side structural schematic diagram of a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the other side of a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the cooperation between the feed bin and the fine material box of a lithium battery electrode material sorting and conveying equipment proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the cylinder and magnet cooperating with each other in a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0029] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0030] Figure 6 A schematic diagram of the structure of a positive pole magnetic block of a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the connection shaft and hollow blades cooperating with each other in a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0032] Figure 8 A schematic diagram of a discharge mechanism of a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0033] Fig. 9 This is a schematic diagram of the coordination structure of the conductive column, electromagnetic assembly and permanent magnet sheet of a lithium battery electrode material sorting and conveying equipment proposed by the present invention;

[0034] Fig.10 A schematic diagram of the internal structure of an electromagnetic component of a lithium battery electrode material sorting and conveying device proposed by the present invention;

[0035] Fig.11 This is a schematic diagram of the structure of the cooperation between the shell and the third motor of a lithium battery electrode material sorting and conveying device proposed by the present invention.

[0036] In the figure: 1. bracket; 2. shell; 3. first motor; 4. end cover; 5. cylinder; 6. magnet; 7. feed box; 8. fine material box; 9. water spray pipe; 10. tail pipe; 11. discharge water pipe; 12. feed bin; 13. second motor; 14. connecting shaft; 15. hollow blade; 16. positive magnetic block; 17. first hollow groove; 18. magnetic frame; 19. spiral rotating sheet; 20. second hollow groove; 21. side baffle; 22. negative magnetic block; 23. third motor; 24. insulating shaft; 25. conductive column; 26. conductive block; 27. slide slot; 28. electromagnetic block; 29. ​​conductive coil; 30. mosaic block; 31. permanent magnet sheet; 32. outer blade. DETAILED DESCRIPTION

[0037] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0038] Reference Figure 1-Figure 3 , a lithium battery electrode material sorting and conveying device, comprising a bracket 1, a housing 2 is fixedly connected to the bracket 1, and further comprising:

[0039] The feeding box 7 is arranged in the outer shell 2, and the top of the feeding box 7 is connected with the output end of the external mixed material conveying equipment. A water spray pipe 9 is installed on the top of the feeding box 7, and the output end of the water spray pipe 9 points to the inside of the feeding box 7.

[0040] Reference Figure 4-Figure 6, a sorting mechanism, the sorting mechanism includes a feeding bin 12, the feeding bin 12 is arranged in the outer shell 2, and the bottom is connected to the feeding box 7, a negative magnetic block 22 is installed in the top wall of the feeding bin 12, and a positive magnetic block 16 is installed in the bottom wall, the positive magnetic block 16 and the negative magnetic block 22 are located on both sides of the top opening of the feeding bin 12, and an alternating magnetic field is formed between the two when working, the volume of the positive magnetic block 16 is larger than the volume of the negative magnetic block 22, and changes from small to large along the conveying direction of the feeding bin 12.

[0041] The positive pole magnetic block 16 is in the shape of a right triangle, with the hypotenuse facing the negative pole magnetic block 22, and the right angle end is located near the input end of the magnetic separator.

[0042] A plurality of first hollow grooves 17 are formed in the positive pole magnetic block 16 , and a magnetic frame 18 is rotatably connected in the first hollow groove 17 . The magnetic frame 18 rotates in a corresponding direction as the magnetic field changes in the alternating magnetic field.

[0043] Two groups of spiral rotating plates 19 are fixedly connected to the magnetic frame 18 .

[0044] A plurality of second hollow grooves 20 are formed on the top of the positive pole magnetic block 16 , and the plurality of second hollow grooves 20 are distributed on both sides of the plurality of first hollow grooves 17 in a one-to-one correspondence.

[0045] Reference Figure 3 and Figure 4 , a magnetic separator is installed in a shell 2, and an input end is connected to a top opening in a feed bin 12, and one output end is connected to a tailing pipe 10 for discharging non-magnetic materials, and the other output end is connected to a fine material box 8 for discharging magnetic materials. The magnetic separator has a magnetic attraction intensity on the magnetic materials in the feed bin 12 that is greater than the magnetic attraction intensity of the alternating magnetic field on the magnetic materials in the feed bin 12.

[0046] The magnetic separator includes a first motor 3, which is mounted on a bracket 1. An end cover 4 is coaxially fixedly connected to an output end of the first motor 3. An end cover 4 is coaxially fixedly connected to a cylinder 5 away from one end of the first motor 3. A magnet 6 is arranged in the cylinder 5. The cylinder 5 and the magnet 6 rotate coaxially. One end of the magnet 6 is rotatably connected to the bracket 1 through a support shaft. The magnet 6 is located at the bottom of the cylinder 5 and between the bottom of the cylinder 5 and the fine material box 8. The bottom of the cylinder 5 and the inside of the shell 2 form a magnetic separation channel. The bottom of the magnetic separation channel is connected to the top opening in the feeding bin 12. The end of the magnetic separation channel away from the feeding box 7 is connected to the fine material box 8. A discharge water pipe 11 is installed on the shell 2. The discharge water pipe 11 is located above the fine material box 8 and is used to flush the magnetic material on the cylinder 5 down into the fine material box 8. A discharge port is opened at one end of the magnetic separation channel away from the fine material box 8. The discharge port is connected to the top of multiple tailing pipes 10. The bottom ends of the multiple tailing pipes 10 are sealed and pass through the shell 2 and are connected to the outside.

[0047] Side baffles 21 are provided on both sides of the negative pole magnetic block 22 , and the side baffles 21 separate the discharge port and the negative pole magnetic block 22 .

[0048] The toggle assembly is connected to the housing 2, and the output end seal extends into the feed bin 12 and is located between the positive magnetic block 16 and the negative magnetic block 22, and is used to toggle the mixed liquid in the feed bin 12 to the input end of the magnetic separator.

[0049] Reference Figure 4 , Figure 5 and Figure 7 The toggle assembly includes a second motor 13, which is mounted on the housing 2. The output end of the second motor 13 is coaxially fixedly connected with a connecting shaft 14. The connecting shaft 14 is sealed and penetrates into the feeding bin 12 at one end away from the second motor 13, and is coaxially fixedly connected with a hollow blade 15. The hollow blade 15 rotates to shift the mixed liquid in the feeding bin 12 toward the connecting port between the bottom of the magnetic separation channel and the feeding bin 12.

[0050] The hollow blade 15 includes a rectangular frame, which is coaxially fixed to the connecting shaft 14. A plurality of toggle blades are fixedly connected inside the rectangular frame. The plurality of toggle blades are evenly spaced and arranged tilted, and the plurality of toggle blades on both sides of the connecting shaft 14 are symmetrically distributed.

[0051] Reference Figure 4 , Figure 8-Figure 11 , and also includes a discharge mechanism, multiple discharge mechanisms correspond to multiple tailing pipes 10 one by one, the discharge mechanism includes a third motor 23, the third motor 23 is installed in the tailing pipe 10 through a motor frame, the output end of the third motor 23 is coaxially fixedly connected with an insulating shaft 24, the top of the insulating shaft 24 is coaxially fixedly connected with a conductive column 25, both ends of the conductive column 25 are electrically connected to a conductive block 26, and the middle is fixedly connected to a permanent magnet sheet 31, two electromagnetic components are electrically slidably installed on the conductive column 25, the two electromagnetic components are located one by one between the two conductive blocks 26 and the permanent magnet sheet 31, the electromagnetic component includes an electromagnetic block 28 with a magnetic core and a conductive coil 29, the electromagnetic block 28 and the conductive coil 29 are both The conductive column 25 is electrically connected, the electromagnetic block 28 and the conductive coil 29 are both slidably connected to the conductive column 25, and are both slidably matched and electrically contacted with the conductive column 25 through a conductive conductive slider. The conductive coil 29 is sleeved in the electromagnetic block 28. The magnetic iron core in the electromagnetic block 28 is opposite to the same pole of the permanent magnet piece 31. After the electromagnetic block 28 and the conductive coil 29 are energized, they are opposite to the opposite poles of the permanent magnet piece 31. Collision switches are installed on both sides of the permanent magnet piece 31. The electromagnetic block 28, the conductive coil 29 and the collision switch are all electrically connected to a control circuit, which is installed on the bracket 1. The control circuit is used to cut off the power of the electromagnetic block 28 and the conductive coil 29 after the electromagnetic block 28 contacts the collision switch.

[0052] An embedding block 30 is fixedly connected to the inner circumference of the electromagnetic block 28 , and a sliding groove 27 is coaxially opened on the outer circumference of the conductive column 25 , and the embedding block 30 is slidably connected in the sliding groove 27 .

[0053] An outer blade 32 is coaxially fixedly connected to the outer circumference of the conductive column 25. The outer blade 32 is coaxially gap-matched with the inner circumference of the tailing pipe 10. The outer blade 32 is located in the part of the tailing pipe 10 that passes through the feeding bin 12. The inner layer of the outer blade 32 is an insulator.

[0054] In the present invention, the mixed material, i.e., a plurality of materials of lithium battery electrode materials having magnetic properties, will be put into the feed box 7 in the housing 2 in the form of powder or granules after the previous process, and at this time, the water spray pipe 9 will work and spray out the blowing water, and the mixed material will enter the feed bin 12 in a loose suspended state under the action of the blowing water, and at this time, the material will reach between the positive pole magnetic block 16 and the negative pole magnetic block 22;

[0055] The positive magnetic block 16 and the negative magnetic block 22 both adopt the electromagnet structure in the prior art. By controlling the current passed into the electromagnet, the direction of the magnetic field between the two changes periodically, so that the positive magnetic block 16 and the negative magnetic block 22 work in the feeding bin 12 to form an alternating magnetic field. The volume of the positive magnetic block 16 is larger than that of the negative magnetic block 22, thereby increasing the gradient of the alternating magnetic field. When the sizes of the magnetic blocks of the alternating magnetic field are different, an uneven magnetic field distribution will be formed, thereby generating a magnetic field gradient.

[0056] The magnetic field strength of the positive pole magnetic block 16 gradually increases from the smaller magnetic end to the larger magnetic end. The electrode material particles with stronger magnetism will be adsorbed near the larger magnetic end, while the particles with weaker magnetism will be located at the top under the push of the water flow.

[0057] The different sizes of the magnetic ends of the positive magnetic block 16 make the magnetic force on the magnetic material in the magnetic field uneven. Under the action of the alternating magnetic field, the magnetic material is subjected to a constantly changing magnetic force in the magnetic field between the large and small magnetic ends, with one side being strong and the other side being weak, causing the magnetic material to constantly flip, and the alternating magnetic field itself causes the mixed material to vibrate, and the gradient setting can better break up the clumped mixed material;

[0058] In addition, a first hollow groove 17 is provided in the positive magnetic block 16, and a magnetic frame 18 is installed in the first hollow groove 17. The magnetic frame 18 is connected to the magnetic block embedded inside. When the alternating magnetic field starts to operate, the magnetic frame 18 will also rotate along the guiding direction of the magnetic field. The spiral rotating piece 19 in the magnetic frame 18 can increase the contact area and action time between the blade and the magnetic field. In the alternating magnetic field, the direction and intensity of the magnetic field are constantly changing. The shape of the spiral rotating piece 19 enables the blade to continuously cut the magnetic field line at different angles and positions during the rotation process. According to the law of electromagnetic induction, this behavior of cutting the magnetic field line will hinder the change of the magnetic field and increase the stability of the magnetic field of the positive magnetic block 16 when it changes. Since the magnetic field strength of the positive magnetic block 16 is greater than the magnetic field strength of the negative magnetic block 22, in the process of the two forming an alternating magnetic field, increasing the stability of the magnetic field of the positive magnetic block 16 when it changes can improve the stability of the entire alternating magnetic field operation, thereby ensuring the working effect of the alternating magnetic field when it is working;

[0059] The positive pole magnetic block 16 is provided with a plurality of second hollow grooves 20. In the hollow area, the magnetic permeability is reduced. According to the Ampere loop theorem of the magnetic field, the magnetic field lines tend to bypass the hollow part, resulting in a weakening of the local magnetic field strength, thereby further improving the local anisotropic distribution of the magnetic field of the positive pole magnetic block 16, forming a more complex magnetic field gradient, and thus more accurately separating materials with different magnetic properties when processing a mixture of electrode materials with large magnetic differences.

[0060] At this time, the second motor 13 is started, and the second motor 13 drives the connecting shaft 14 to rotate, and the connecting shaft 14 drives the hollow blade 15 to rotate, which is used to push the mixed material to move upward. After the mixed material is processed by the alternating magnetic field, the magnetic material will be at the bottom, and the non-magnetic material will be at the top. At this time, the hollow blade 15 rotates counterclockwise, so that the magnetic mixed material at the bottom is moved upward, and the magnetic material is adsorbed on the cylinder 5 under the action of the magnet 6;

[0061] At this time, the magnetic separator is working, and the first motor 3 drives the cylinder 5 to rotate through the end cover 4. During the rotation of the cylinder 5, the remaining non-magnetic materials mixed in the magnetic materials will be sorted out, and the cylinder 5 rotates to carry the magnetic materials to the weakened magnetic area of ​​the magnet 6, that is, near the fine material box 8. At this time, due to the weakened magnetism of the magnet 6 and the operation of the discharge water pipe 11, the magnetic materials of the cylinder 5 are washed down by the flushing water, and then discharged at the outlet of the fine material box 8;

[0062] Then, the non-magnetic material will enter the tail pipe 10 through the discharge port under the action of the water flow and be discharged;

[0063] When the mixed material passes through the inside of the feeding bin 12 and approaches the discharge mechanism in the tailing pipe 10, the third motor 23 is started, and its output end drives the insulating shaft 24 to rotate, and the conductive block 26 works to supply power to the conductive column 25 through an external power supply;

[0064] At this time, the electromagnetic block 28 and the conductive coil 29 installed on the conductive column 25 will be energized. When energized, according to Ampere's law, the current passing through the coil of the electromagnetic block 28 and the conductive coil 29 will generate a magnetic field. The direction of the current determines the direction of the magnetic field. After the electromagnetic block 28 and the conductive coil 29 are energized, they are magnetically attracted to the permanent magnet sheet 31, so that the electromagnetic block 28 and the permanent magnet sheet 31 will collide with each other. After the collision, the electromagnetic block 28 and the conductive coil 29 are controlled to be de-energized. Under the magnetic effect of the iron core in the electromagnetic block 28, they are magnetically repelled from the permanent magnet sheet 31, so that the electromagnetic block 28 reciprocates on the conductive column 25.

[0065] The collision between the electromagnetic block 28 and the permanent magnet sheet 31 will cause the magnetic field generated by the collision to change for the mixed material containing magnetic and non-magnetic components. When the magnetic field strength is significantly enhanced at the moment of collision between the permanent magnet sheet 31 and the electromagnetic block 28, the magnetic force exerted by the magnetic field on the magnetic particles in the mixed material will increase. When this magnetic force is greater than the agglomeration force between the particles, the magnetic particles will be pulled apart under the action of the magnetic force, thereby breaking the agglomerates and separating them from the non-magnetic materials, thus forming a pretreatment effect on the sorting of the mixed materials.

[0066] When the third motor 23 is working, the outer blades 32 are driven to rotate through the insulating shaft 24 and the conductive column 25 , so as to facilitate the dredging effect of the material passing through the tail pipe 10 .

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery electrode material sorting and conveying device, comprising a bracket (1), to which a housing (2) is fixedly connected, characterized in that: Also includes: A feeding box (7), the feeding box (7) is arranged in the housing (2), and the top is connected to the output end of the external mixed material conveying equipment, and a water spray pipe (9) is installed on the top of the feeding box (7), and the output end of the water spray pipe (9) points to the inside of the feeding box (7); A sorting mechanism, the sorting mechanism comprising a feeding bin (12), the feeding bin (12) being arranged in a housing (2) and being connected to a feeding box (7) at its bottom, a negative pole magnetic block (22) being installed in the top wall of the feeding bin (12), and a positive pole magnetic block (16) being installed in the bottom wall, the positive pole magnetic block (16) and the negative pole magnetic block (22) being located at both sides of the top opening of the feeding bin (12), and forming an alternating magnetic field between the two during operation, the volume of the positive pole magnetic block (16) being larger than the volume of the negative pole magnetic block (22), and increasing from small to large along the conveying direction of the feeding bin (12); A magnetic separator, wherein the magnetic separator is installed in a housing (2), and an input end is connected to a top opening in a feed bin (12), and an output end is connected to a tailing pipe (10) for discharging non-magnetic materials, and another output end is connected to a fine material box (8) for discharging magnetic materials, and the magnetic attraction intensity of the magnetic separator on the magnetic materials in the feed bin (12) is greater than the magnetic attraction intensity of the alternating magnetic field on the magnetic materials in the feed bin (12); A toggle assembly is connected to the housing (2), and the output end seal extends through the feed bin (12) and is located between the positive pole magnetic block (16) and the negative pole magnetic block (22), and is used to toggle the mixed liquid in the feed bin (12) toward the input end of the magnetic separator.

2. A lithium battery electrode material sorting and conveying device according to claim 1, characterized in that: The positive pole magnetic block (16) is in the shape of a right-angled triangle, with the hypotenuse facing the negative pole magnetic block (22), and the right-angle end is located close to the input end of the magnetic separator.

3. The lithium battery electrode material sorting and conveying equipment according to claim 1, characterized in that: A plurality of first hollow grooves (17) are provided in the positive pole magnetic block (16), a magnetic frame (18) is rotatably connected in the first hollow groove (17), and the magnetic frame (18) rotates in a corresponding direction as the magnetic field changes in the alternating magnetic field.

4. A lithium battery electrode material sorting and conveying device according to claim 3, characterized in that: Two groups of spiral rotating plates (19) are fixedly connected to the magnetic frame (18).

5. The lithium battery electrode material sorting and conveying equipment according to claim 1, characterized in that: A plurality of second hollow grooves (20) are provided on the top of the positive pole magnetic block (16), and the plurality of second hollow grooves (20) are distributed one by one at intervals on both sides of the plurality of first hollow grooves (17).

6. The lithium battery electrode material sorting and conveying equipment according to claim 1, characterized in that: The magnetic separator comprises a first motor (3), the first motor (3) being mounted on a bracket (1), the output end of the first motor (3) being coaxially fixedly connected to an end cover (4), the end of the end cover (4) being coaxially fixedly connected to a cylinder (5) at one end away from the first motor (3), a magnet (6) being arranged in the cylinder (5), the cylinder (5) and the magnet (6) being coaxially rotatable, one end of the magnet (6) being rotatably connected to the bracket (1) via a support shaft, the magnet (6) being located at the bottom of the cylinder (5) and between the bottom of the cylinder (5) and a fine material box (8), the bottom of the cylinder (5) being connected to the outer shell (2) The interior of the magnetic separation channel is surrounded by a magnetic separation channel, the bottom of the magnetic separation channel is connected to the top opening of the feed bin (12), the end of the magnetic separation channel away from the feed box (7) is connected to the fine material box (8), a discharge water pipe (11) is installed on the outer shell (2), the discharge water pipe (11) is located above the fine material box (8), and is used to flush the magnetic material on the cylinder (5) into the fine material box (8), a discharge port is opened at one end of the fine material box (8) of the magnetic separation channel, and the discharge port is connected to the top of a plurality of tailing pipes (10), and the bottom ends of the plurality of tailing pipes (10) are sealed and pass through the outer shell (2) and are connected to the outside.

7. A lithium battery electrode material sorting and conveying device according to claim 6, characterized in that: Side baffles (21) are provided on both sides of the negative pole magnetic block (22), and the side baffles (21) separate the discharge port and the negative pole magnetic block (22).

8. The lithium battery electrode material sorting and conveying equipment according to claim 6, characterized in that: The shifting assembly comprises a second motor (13), the second motor (13) is mounted on the housing (2), the output end of the second motor (13) is coaxially fixedly connected with a connecting shaft (14), the end of the connecting shaft (14) away from the second motor (13) is sealed and extends into the feeding bin (12), and is coaxially fixedly connected with a hollow blade (15), and the hollow blade (15) rotates to shift the mixed liquid in the feeding bin (12) toward the communication port between the bottom of the magnetic separation channel and the feeding bin (12).

9. The lithium battery electrode material sorting and conveying equipment according to claim 8, characterized in that: The hollow blade (15) comprises a rectangular frame, the rectangular frame is coaxially fixedly connected to the connecting shaft (14), a plurality of toggling blades are fixedly connected inside the rectangular frame, the plurality of toggling blades are evenly spaced and distributed, the plurality of toggling blades are tilted, and the plurality of toggling blades located on both sides of the connecting shaft (14) are symmetrically distributed.

10. The lithium battery electrode material sorting and conveying equipment according to claim 1, characterized in that: The invention also comprises a discharge mechanism, wherein a plurality of the discharge mechanisms correspond one to one with a plurality of tailing pipes (10), wherein the discharge mechanism comprises a third motor (23), wherein the third motor (23) is installed in the tailing pipe (10) via a motor frame, wherein an output end of the third motor (23) is coaxially fixedly connected to an insulating shaft (24), wherein a top end of the insulating shaft (24) is coaxially fixedly connected to a conductive column (25), wherein both ends of the conductive column (25) are electrically connected to conductive blocks (26), and a middle portion is fixedly connected to a permanent magnet sheet (31), wherein two electromagnetic components are electrically slidably installed on the conductive column (25), wherein the two electromagnetic components are located one to one between the two conductive columns (25) and the permanent magnet sheet (31), wherein the electromagnetic components comprise an electromagnetic block (28) having a magnetic iron core and a conductive coil (29). The electromagnetic block (28) and the conductive coil (29) are both electrically connected to the conductive column (25), the electromagnetic block (28) is slidably connected to the conductive column (25), the conductive coil (29) is sleeved in the electromagnetic block (28), the magnetic iron core in the electromagnetic block (28) is opposite to the same pole of the permanent magnet sheet (31), the electromagnetic block (28) and the conductive coil (29) are opposite to the opposite pole of the permanent magnet sheet (31) after being energized, and collision switches are installed on both sides of the permanent magnet sheet (31), the electromagnetic block (28), the conductive coil (29) and the collision switch are all electrically connected to a control circuit, the control circuit is installed on the bracket (1), and the control circuit is used to cut off the power of the electromagnetic block (28) and the conductive coil (29) after the electromagnetic block (28) contacts the collision switch; The inner circumference of the electromagnetic block (28) is fixedly connected with a fitting block (30), the outer circumference of the conductive column (25) is coaxially provided with a slide groove (27), and the fitting block (30) is slidably connected in the slide groove (27); An outer blade (32) is coaxially fixedly connected to the outer circumference of the conductive column (25), and the outer blade (32) is coaxially gap-matched with the inner circumference of the tailing pipe (10). The outer blade (32) is located in a portion of the tailing pipe (10) passing through the feed bin (12), and the inner layer of the outer blade (32) is an insulator.