Dry recovery device for sodium ion battery pole piece

Abstract

The invention belongs to the technical field of battery pole piece recovery, and discloses a sodium ion battery pole piece dry recovery device which comprises a treatment box and a crushing roller, and a fixed guide screening part located below the crushing roller is fixedly arranged in the treatment box. Large-size materials are pushed into the material guiding assembly in a concentrated mode after screening, pressure air is guided into the material guiding assembly in cooperation with the air supply assembly, the composite screening assembly and the ventilation reversing assembly, and the materials are conveyed to the material guiding assembly through the power effect of the pressure air. Screened large-volume materials are transferred to the top of a crushing roller along a pipeline in cooperation with pushing of pressure air for secondary screening, incomplete primary screening is avoided, the screened materials are subjected to simple and rapid secondary screening treatment, the actually screened large-volume materials are automatically separated and stacked and rapidly guided to the crushing roller, and the crushing efficiency is improved. And the crushing quality and efficiency in the dry recovery process of the sodium-ion battery are greatly improved, and the practical effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery pole piece recycling, and in particular relates to a dry recycling device for sodium ion battery pole pieces. Background Art

[0002] Sodium-ion battery pole pieces are key components of sodium-ion batteries. They are divided into positive pole pieces and negative pole pieces, which carry positive electrode materials and negative electrode materials respectively. During the recycling process, dry recycling methods with less environmental pollution are usually adopted. Specifically, the valuable metals in the battery pole pieces are recycled through disassembly, crushing, pyrolysis and screening.

[0003] In the current dry recycling process of sodium-ion battery pole pieces, the disassembled sodium-ion battery pole pieces need to be crushed, and the crushed pole pieces are used to improve the subsequent processing effect, make the particle size more uniform, and increase the surface area. However, in the actual crushing process, the materials after a single crushing are of different sizes. Some larger crushed pole pieces cannot meet the requirements and often need to be crushed for a second time. However, the current secondary crushing process is difficult. On the one hand, it is difficult to separate and remove the screened materials during operation. On the other hand, after being removed, they need to be manually transferred to the crushing roller for crushing. The intermediate operation is time-consuming and labor-intensive, which greatly reduces the efficiency of continuous crushing and recycling, and the practical effect is not good.

[0004] In addition, a certain amount of colloid remains on the surface of the disassembled battery electrodes and cannot be effectively cleaned. During the actual crushing process, some of the crushed battery electrodes with colloid attached to them adhere to various places inside the crushing box, making it difficult to separate them after subsequent crushing and screening. The adhered electrodes remaining in the crushing box are relatively large, which affects the total amount of recycling on the one hand, and causes equipment wear on the other hand. In addition, the actual cleaning and separation is difficult, and the practical effect is not good. Summary of the invention

[0005] The object of the present invention is to provide a dry recovery device for sodium ion battery pole pieces to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dry recovery device for sodium ion battery pole pieces, comprising a processing box and a crushing roller, wherein the interior of the processing box is fixedly provided with a fixed guide screening part located below the crushing roller, the interior of the fixed guide screening part is sleeved with a rotating composite screening component, the side of the processing box is fixedly provided with an air supply component, and the air supply component inputs pressurized air into the composite screening component, and the other side of the processing box is fixedly provided with a ventilation reversing component, and the ventilation reversing component independently inputs the pressurized air in the composite screening component into the interior of the processing box and the material guide component, the composite screening component pushes the screened broken pole pieces into the material guide component, and the screened broken pole pieces are pushed into the crushing roller by the pressurized air in the material guide component,

[0007] The fixed guiding and screening part comprises a guiding and screening arc cylinder, a guiding ramp and an air guiding groove.

[0008] The composite screening assembly includes a rotating shaft, spiral blades, an internal cavity, a purge hole and an air inlet.

[0009] Preferably, a power mechanism No. 1 is fixedly provided on the side of the processing box, and the power mechanism No. 1 includes a motor 1 and a gear set. The power mechanism No. 1 drives the crushing roller to rotate, and the crushing roller is rotatably installed in the processing box.

[0010] Preferably, the bottom of the guiding screening arc cylinder is a semicircular structure, the guiding screening arc cylinder has inclined structures on both sides, the guiding screening arc cylinder is fixed to the inside of the processing box through the inclined structures on both sides, the guiding inclined platform is fixedly connected to the top of the guiding screening arc cylinder, the air guide groove is vertically opened inside the guiding inclined platform, the horizontal length of the guiding inclined platform is smaller than the length of the guiding screening arc cylinder, and the surface of the guiding screening arc cylinder is provided with sieve holes.

[0011] Preferably, the rotating shaft is rotatably sleeved inside the processing box, and a No. 2 power mechanism is fixedly provided on the side of the processing box, and the No. 2 power mechanism drives the rotating shaft to rotate. The spiral blades are fixedly sleeved on the outer surface of the rotating shaft and are located in the recess of the guiding screening arc cylinder. The internal cavity is opened inside the rotating shaft and passes through one end of the rotating shaft. The purge hole and the air inlet are both opened on the outer surface of the rotating shaft, and the purge hole and the air inlet are both connected to the internal cavity.

[0012] Preferably, the spiral blade rotates and pushes the broken pole piece in the spiral guide screening arc cylinder toward the left side, the inclined lower end of the guide ramp is close to the right side of the spiral blade, and an outlet groove is opened on the left side of the processing box, and the outlet groove is aligned and connected with the left end of the guide screening arc cylinder.

[0013] Preferably, the air supply assembly includes an air pump and a distribution cover, the air pump is fixed to the right side of the processing box through a mounting bracket, the distribution cover is fixed to the right side of the processing box and is sleeved on the outer surface of the rotating shaft, the air outlet end of the air pump is fixedly connected and communicated with the distribution cover, the socket area of ​​the distribution cover and the rotating shaft is provided with a sealing ring, and the rotating shaft is rotatably sleeved in the distribution cover.

[0014] Preferably, the ventilation reversing assembly includes a fixed sleeve, an air guide pipe, a connecting hole, a bypass port, a spring, a control screw and an intermediate frame. The fixed sleeve is fixedly connected to the left side of the processing box and is sleeved on the outside of the rotating shaft. The fixed sleeve is communicated with the internal cavity. The air guide pipe is movably sleeved in the internal cavity. One end of the air guide pipe remains sealed. The connecting hole and the bypass port are both provided on the outer surface of the air guide pipe. The connecting hole corresponds to the purge hole one-to-one. The bypass port is located below the outer surface of the air guide pipe and is located close to the through end of the rotating shaft. The control screw is threadedly sleeved on the end of the fixed sleeve. One end of the spring is fixed to the sealing end of the air guide pipe, and the other end is fixedly connected to the fixed sleeve. The intermediate frame is fixedly sleeved on the bottom of the fixed sleeve. The lower end of the intermediate frame is fixedly sleeved in the material guide assembly and is communicated with the interior of the material guide assembly.

[0015] Preferably, the material guide assembly includes a material guide seat, a material guide port, a material guide pipe and a partition portion, the material guide seat is fixedly connected to the left side of the processing box, the material guide port is opened inside the material guide seat and is connected to the outlet groove, one end of the material guide pipe is fixedly connected to the end of the material guide seat, and the other end passes through the processing box and extends to the top of the crushing roller, the partition portion is movably sleeved in the material guide seat, and the top of the material guide seat is fixedly sleeved with the middle frame.

[0016] Preferably, the partition part is located on the right side of the bottom end of the middle frame, and the partition part includes a sealing baffle and a threaded push rod. The threaded push rod is threadedly sleeved on the bottom of the material guide seat, and when it is rotated upward, it pushes the sealing baffle up and seals and isolates the material guide port in the middle of the material guide port.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention realizes guiding and screening by using a fixed guiding screening part, and cooperates with a composite screening component rotatably installed in the fixed guiding screening part, and utilizes the rotating action of the spiral blade to realize the pushing of the accumulated materials in the fixed guiding screening part, so that the materials are screened during the dynamic movement in the guiding screening arc cylinder, and after screening, the large volume of materials are concentratedly pushed into the material guiding component, and cooperates with the air supply component, the composite screening component and the ventilation reversing component to introduce pressurized air into the material guiding component, and utilizes the dynamic action of the pressurized air to transfer the screened large volume of materials along the pipeline to the top of the crushing roller in cooperation with the pushing of the pressurized air for secondary screening, so as to avoid incomplete primary screening, and perform a simple and fast secondary screening process on the screened materials, and the large volume of materials after actual screening are automatically separated and accumulated, and quickly guided to the crushing roller, which greatly improves the quality and efficiency of crushing in the dry recovery process of sodium ion batteries, and has good practical effect.

[0019] 2. The present invention reuses the ventilation of the air supply component and the composite screening component. When the ventilation reversing component is not in operation, the pressurized air is guided to be blown out directly through the composite screening component, and along with the rotation process, directional blowing of the gap is realized, combined with intermittent blowing in four directions of up, down, left and right. On the one hand, comprehensive blowing treatment is realized inside the processing box, and the broken battery pole pieces with adhesive on the surface and adhered to the inner wall of the processing box are blown away. In addition, in combination with the air guide grooves in the guiding ramp, the bottom of the rotating crushing roller is blown while guiding the material discharge, so as to fully separate the adhered broken battery pole pieces, improve the separation effect, avoid residues inside the processing box and on the crushing roller, and achieve good collection effect after recovery and crushing.

[0020] 3. The present invention reuses the pressurized air purged through the composite screening assembly and cooperates with the purging treatment in different directions to achieve the purging treatment of the two sides and the top sieve holes of the guiding screening arc cylinder, and utilizes the driving force of the pressurized air to improve the separation effect of the blocked materials in the sieve holes. In conjunction with the spiral blades in the rotating process, the driving force of the lateral materials is utilized, so that there are horizontal and downward forces above the sieve holes at the bottom of the guiding screening arc cylinder, which greatly reduces the situation of sieve hole obstruction and has a good comprehensive screening effect in the recovery and crushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0023] Figure 3 It is a cross-sectional schematic diagram of the processing box and the fixed guiding screening part of the present invention;

[0024] Figure 4 It is a schematic diagram of the arrangement of the composite screening assembly and the fixed guiding screening part of the present invention;

[0025] Figure 5 It is an exploded schematic diagram of the fixed guide screening part of the present invention;

[0026] Figure 6 It is a cross-sectional schematic diagram of the material guide assembly and the composite screening assembly of the present invention;

[0027] Figure 7 It is an exploded schematic diagram of the composite screening assembly of the present invention;

[0028] Figure 8 It is a cross-sectional schematic diagram of the ventilation reversing assembly of the present invention;

[0029] Fig. 9 It is a cross-sectional schematic diagram of the material guiding assembly of the present invention;

[0030] Fig.10 It is a schematic diagram of the gas supply assembly of the present invention.

[0031] In the figure: 1. Processing box; 2. Crushing roller; 3. Power mechanism No. 1; 4. Fixed guide screening part; 41. Guide screening arc cylinder; 42. Guide ramp; 43. Air guide groove; 5. Composite screening assembly; 51. Rotating shaft; 52. Spiral blade; 53. Internal cavity; 54. Purge hole; 55. Air inlet; 6. Power mechanism No. 2; 7. Ventilation reversing assembly; 71. Fixed sleeve; 72. Air guide pipe; 73. Connecting hole; 74. Bypass port; 75. Spring; 76. Control screw; 77. Middle frame; 8. Material guide assembly; 81. Material guide seat; 82. Material guide port; 83. Material guide pipe; 84. Partition; 9. Air supply assembly; 91. Air pump; 92. Distribution cover; 10. Outlet groove. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figures 1 to 10As shown, an embodiment of the present invention provides a dry recovery device for sodium ion battery pole pieces, including a processing box 1 and a crushing roller 2, wherein a fixed guide screening part 4 located below the crushing roller 2 is fixedly provided inside the processing box 1, a rotating composite screening component 5 is sleeved inside the fixed guide screening part 4, an air supply component 9 is fixedly provided on the side of the processing box 1, and the air supply component 9 inputs pressurized air into the composite screening component 5, and a ventilation reversing component 7 is fixedly provided on the other side of the processing box 1, and the ventilation reversing component 7 inputs the pressurized air in the composite screening component 5 into the interior of the processing box 1 and the material guide component 8 respectively and independently, the composite screening component 5 pushes the screened broken pole pieces into the material guide component 8, and the screened broken pole pieces are pushed into the crushing roller 2 by the pressurized air in the material guide component 8, the fixed guide screening part 4 includes a guide screening arc cylinder 41, a guide ramp 42 and an air guide groove 43,

[0034] The composite screening assembly 5 includes a rotating shaft 51 , spiral blades 52 , an inner cavity 53 , a purge hole 54 and an air inlet 55 .

[0035] Embodiment 1: When in use, the sodium ion battery electrode piece to be crushed is put into the top of the processing box 1, the No. 1 power mechanism 3 is started, the crushing roller 2 is driven to rotate, the electrode piece is crushed and falls downward, and falls on the guide inclined platform 42 in the fixed guide screening part 4, and the large and small crushed electrode pieces slide down along the inclined surface and fall on one side of the guide screening arc cylinder 41, and the No. 2 power mechanism 6 and the air supply component 9 are kept started, the No. 2 power mechanism 6 drives the composite screening component 5 to rotate, the rotating shaft 51 drives the spiral blade 52 to rotate, and the spiral blade 52 pushes the large and small crushed electrode pieces in the guide screening arc cylinder 41 to move horizontally, so that the large and small mixed crushed electrode pieces are dynamically moved. The broken pole pieces of small size that meet the size fall along the sieve holes, and the broken pole pieces of larger size are retained in the arc-shaped inner cavity of the guiding screening arc cylinder 41, and are pushed laterally by the rotating spiral blades 52, so that the broken pole pieces of larger size are pushed into the material guide component 8. At the same time, the air pump 91 in the air supply component 9 inputs the pressurized air into the inner cavity 53 of the rotating shaft 51 through the distribution cover 92 and the air inlet 55. When the purge hole 54 is aligned and connected with the connecting hole 73 during the rotation of the rotating shaft 51, the pressurized air input into the inner cavity 53 is swept along the top, bottom, left and right directions, and the pressurized air blown downward further pushes the guiding sieve. The mixed material in the arc tube 41 is disturbed and dispersed, and the blocked material in the bottom sieve hole is purged and pushed at the same time. The pressure air purged along the left and right sides acts on the inclined structures on both sides of the guiding screening arc tube 41, and the inclined structures on both sides of the guiding screening arc tube 41 are purged and disturbed by pressure air. At the same time, the upward pressure air fills the processing box 1 on the one hand, and acts upward on the bottom of the rotating crushing roller 2, so that the sodium ion battery pole piece fragments adhered to the crushing roller and the processing box 1 are separated and dropped. When a certain amount of larger-sized battery pole pieces obtained by screening are accumulated in the material guide component 8, the partition part 84 in the material guide component 8 is pushed upward, so that the material guide The internal space of the port 82 is divided into two, and the control screw 76 in the ventilation reversing assembly 7 is rotated outward, so that the spring 75 is elastically reset and pulls the connected air guide pipe 72 to move horizontally in the rotating shaft 51, the connecting hole 73 and the purge hole 54 are offset and sealed, and the bypass port 74 is moved to the top of the middle frame 77 and opened. The pressurized air in the air guide pipe 72 is injected into the guide port 82 through the bypass port 74 and the middle frame 77 and is located on the left side of the partition part 84. The pressurized air quickly fills the space on the left side of the partition part 84, and pushes the larger-sized crushing pole pieces in the space into the guide pipe 83, and is blown upward to the top of the crushing roller 2 for secondary crushing.

[0036] Firstly, by using the fixed guide screening part 4 to achieve guidance and screening, and cooperating with the composite screening component 5 rotatably installed in the fixed guide screening part 4, the rotation of the spiral blade is used to realize the pushing of the accumulated materials in the fixed guide screening part 4, so that the materials are screened during the dynamic movement in the guide screening arc cylinder 41, and the large volume of materials are concentratedly pushed into the guide component 8 after screening, and the air supply component 9 and the composite screening component 5 and the ventilation reversing component 7 are cooperated to introduce pressurized air into the guide component 8, and the power of the pressurized air is used to transfer the screened large volume of materials along the pipeline to the top of the crushing roller 2 in cooperation with the push of the pressurized air for secondary screening, so as to avoid incomplete screening at the first time, and the screened materials are subjected to simple and fast secondary screening treatment, and the large volume of materials after actual screening are automatically separated and accumulated, and quickly guided to the crushing roller, which greatly improves the quality and efficiency of crushing in the dry recovery process of sodium ion batteries, and has good practical effect.

[0037] In addition, by reusing the ventilation of the air supply component 9 and the composite screening component 5, when the ventilation reversing component 7 is not in operation, the pressurized air is guided to be blown out directly through the composite screening component 5, and with the rotation process, the directional blowing of the gap is realized, and the intermittent blowing in the four directions of up, down, left and right is coordinated. On the one hand, the internal space of the processing box 1 is fully purged, and the broken battery pole pieces with adhesive on the surface and adhered to the inner wall of the processing box 1 are blown away, and the air guide grooves 43 in the guiding ramp 42 are coordinated to guide the material discharge while blowing the bottom of the rotating crushing roller, so as to fully separate the adhered broken battery pole pieces, improve the separation effect, avoid residues in the interior of the processing box 1 and on the crushing roller 2, and achieve a good collection effect after recycling and crushing.

[0038] On the other hand, by reusing the pressurized air purged through the composite screening assembly 5 and coordinating with the purging treatment in different directions, the purging treatment of the two sides and the top sieve holes of the guiding screening arc cylinder 41 is achieved, and the driving force of the pressurized air is utilized to improve the separation effect of the blocked materials in the sieve holes. In conjunction with the spiral blades 52 in the rotating process and utilizing the driving force of the lateral materials, there are horizontal and downward forces respectively above the bottom sieve holes of the guiding screening arc cylinder 41, which greatly reduces the blocking of the sieve holes and improves the comprehensive screening effect in the recovery and crushing process.

[0039] Among them, a power mechanism No. 1 3 is fixedly provided on the side of the processing box 1. The power mechanism No. 1 3 includes a motor 1 and a gear set. The power mechanism No. 1 3 drives the crushing roller 2 to rotate, and the crushing roller 2 is rotatably installed in the processing box 1.

[0040] The crushing process is achieved by utilizing the No. 1 power mechanism 3 to drive the crushing roller 2 to rotate.

[0041] Among them, the bottom of the guiding screening arc cylinder 41 is a semicircular structure, the guiding screening arc cylinder 41 has inclined structures on both sides, and the guiding screening arc cylinder 41 is fixed to the inside of the processing box 1 through the inclined structures on both sides. The guiding inclined platform 42 is fixedly connected to the top of the guiding screening arc cylinder 41, and the air guide groove 43 is vertically opened inside the guiding inclined platform 42. The horizontal length of the guiding inclined platform 42 is less than the length of the guiding screening arc cylinder 41. The surface of the guiding screening arc cylinder 41 is provided with sieve holes, and the rotating shaft 51 is rotatably sleeved in the inside of the processing box 1. The side of the processing box 1 is fixedly provided with a second power mechanism 6, and the second power mechanism 6 drives the rotating shaft 51 to rotate The spiral blade 52 is fixedly sleeved on the outer surface of the rotating shaft 51 and is located in the recess of the guiding screening arc tube 41. The internal cavity 53 is opened inside the rotating shaft 51 and passes through one end of the rotating shaft 51. The purge hole 54 and the air inlet 55 are both opened on the outer surface of the rotating shaft 51. The purge hole 54 and the air inlet 55 are both connected with the internal cavity 53. The spiral blade 52 rotates and pushes the broken pole piece in the spiral guiding screening arc tube 41 toward the left. The inclined lower end of the guiding ramp 42 is close to the right side of the spiral blade 52. An outlet groove 10 is opened on the left side of the processing box 1, and the outlet groove 10 is aligned and connected with the left end of the guiding screening arc tube 41.

[0042] By utilizing the structural design of the guiding screening arc cylinder 41, the materials are guided to be concentrated in the semicircular space, which is fully adapted to the spiral blades 52 to achieve lateral push of the materials, and separation of large-sized materials during screening. The length and position design of the guiding ramp 42 allows the materials to be concentrated at the principle discharge port, so that the materials are subjected to a longer displacement treatment, thereby increasing the screening time and area, and improving the screening effect. The vertical air guide groove 43 guides the upward pressurized air to pass through the guiding ramp 42 and act on the bottom of the crushing roller 2, and the composite screening assembly 5 realizes dynamic screening, realizes directional push and separation of the separated materials, and realizes the purging, processing, and separation of the adhered materials by the pressurized air, and the outlet groove 10 exports the separated large-volume materials.

[0043] Among them, the air supply component 9 includes an air pump 91 and a distribution cover 92. The air pump 91 is fixed to the right side of the processing box 1 through a mounting bracket. The distribution cover 92 is fixed to the right side of the processing box 1 and is sleeved on the outer surface of the rotating shaft 51. The air outlet end of the air pump 91 is fixedly connected and communicated with the distribution cover 92. A sealing ring is provided in the sleeve area of ​​the distribution cover 92 and the rotating shaft 51, and the rotating shaft 51 is rotatably sleeved in the distribution cover 92.

[0044] The air supply assembly 9 provides pressurized air to realize different working conditions, and the provided sealing ring (not shown in the figure) provides a dynamic sealing effect to avoid air leakage.

[0045] The ventilation reversing assembly 7 includes a fixed sleeve 71, an air guide tube 72, a connecting hole 73, a bypass port 74, a spring 75, a control screw 76 and a middle frame 77. The fixed sleeve 71 is fixedly connected to the left side of the processing box 1 and is sleeved on the outside of the rotating shaft 51. The fixed sleeve 71 is connected to the internal cavity 53. The air guide tube 72 is movably sleeved in the internal cavity 53. One end of the air guide tube 72 is kept sealed. The connecting hole 73 and the bypass port 74 are both provided on the outer surface of the air guide tube 72. The through holes 73 correspond to the purge holes 54 one by one. The bypass port 74 is located below the outer surface of the air guide tube 72 and is located near the through end of the rotating shaft 51. The control screw 76 is threadedly sleeved on the end of the fixed sleeve 71. One end of the spring 75 is fixed to the sealing end of the air guide tube 72, and the other end is fixedly connected to the fixed sleeve 71. The middle frame 77 is fixedly sleeved on the bottom of the fixed sleeve 71. The lower end of the middle frame 77 is fixedly sleeved in the material guide component 8 and is connected to the interior of the material guide component 8.

[0046] The compressed air is discharged in different directions through the ventilation reversing assembly 7, which is specifically achieved by controlling the position of the air guide pipe 72. When stationary and not adjusted, the connecting hole 73 and the corresponding purge hole 54 are located in the same vertical plane, and are intermittently connected during rotation to achieve internal purging of the processing box 1. When the control screw 76 is rotated, the spring 75 elastically resets, driving the air guide pipe 72 to move laterally, and the connecting hole 73 and the corresponding purge hole 54 are staggered and sealed. At the same time, the bypass port 74 is connected to the middle frame 77 to deliver the compressed air to the material guide assembly 8.

[0047] Among them, the material guide assembly 8 includes a material guide seat 81, a material guide port 82, a material guide pipe 83 and a partition portion 84. The material guide seat 81 is fixedly connected to the left side of the processing box 1. The material guide port 82 is opened inside the material guide seat 81 and is connected to the outlet groove 10. One end of the material guide pipe 83 is fixedly connected to the end of the material guide seat 81, and the other end passes through the processing box 1 and extends to the top of the crushing roller 2. The partition portion 84 is movably sleeved in the material guide seat 81, and the top of the material guide seat 81 is fixedly sleeved with the middle frame 77.

[0048] Among them, the partition part 84 is located on the right side of the bottom end of the middle frame 77, and the partition part 84 includes a sealing baffle and a threaded push rod. The threaded push rod is threadedly sleeved on the bottom of the material guide seat 81, and when it is rotated upward, it pushes the sealing baffle up and seals and isolates the material guide port 82 in the middle of the material guide port 82.

[0049] The material guide assembly 8 realizes the collection of large-volume materials after screening, and under the isolation effect of the partition part 84, in conjunction with the input pressurized air, under the effect of one-way air outlet, uses pressurized air to push the large-volume crushed pole pieces, and pushes them to the top of the crushing roller 2 for discharge, thereby realizing secondary crushing processing.

[0050] The working principle and use process of the present invention are as follows: when in use, the sodium ion battery pole piece to be crushed is put into the top of the processing box 1, the No. 1 power mechanism 3 is started, the crushing roller 2 is driven to rotate, the pole piece is crushed and falls downward, and falls on the guide inclined platform 42 in the fixed guide screening part 4, and the large and small crushed pole pieces slide down along the inclined surface and fall on one side of the guide screening arc cylinder 41, the No. 2 power mechanism 6 and the air supply component 9 are kept started, the No. 2 power mechanism 6 drives the composite screening component 5 to rotate, the rotating shaft 51 drives the spiral blade 52 to rotate, and the spiral blade 52 pushes the large and small crushed pole pieces in the guide screening arc cylinder 41 to move horizontally, so that the large and small mixed pole pieces The broken pole pieces move dynamically, and the small-sized broken pole pieces that meet the size fall along the sieve holes, and the larger-sized broken pole pieces are retained in the arc-shaped inner cavity of the guiding screening arc cylinder 41, and are pushed laterally by the rotating spiral blades 52, so that the larger-sized broken pole pieces are pushed into the material guide component 8. At the same time, the air pump 91 in the air supply component 9 inputs the pressurized air into the inner cavity 53 of the rotating shaft 51 through the distribution cover 92 and the air inlet 55. As the purge hole 54 and the connecting hole 73 are aligned and connected during the rotation of the rotating shaft 51, the pressurized air input into the inner cavity 53 is swept up, down, left and right, and the pressurized air blown downward is further The mixed material in the guiding screening arc cylinder 41 is pushed to be disturbed and dispersed, and the blocked material in the bottom sieve hole is purged and pushed at the same time. The pressure air purged along the left and right sides acts on the inclined structures on both sides of the guiding screening arc cylinder 41, and the inclined structures on both sides of the guiding screening arc cylinder 41 are purged and disturbed by pressure air. At the same time, the upward pressure air fills the processing box 1 on the one hand, and acts upward on the bottom of the rotating crushing roller 2, so that the sodium ion battery pole piece fragments adhered to the crushing roller and the processing box 1 are separated and dropped. When a certain amount of larger-sized battery pole pieces obtained by screening are accumulated in the material guiding component 8, the partition part 84 in the material guiding component 8 is pushed upward, so that The internal space of the material guide port 82 is divided into two, and the control screw 76 in the ventilation reversing assembly 7 is rotated outward, so that the spring 75 is elastically reset and pulls the connected air guide pipe 72 to move horizontally in the rotating shaft 51, the connecting hole 73 and the purge hole 54 are offset and sealed, and the bypass port 74 is moved to the top of the middle frame 77 and opened. The pressurized air in the air guide pipe 72 is injected into the material guide port 82 through the bypass port 74 and the middle frame 77 and is located on the left side of the partition part 84. The pressurized air quickly fills the space on the left side of the partition part 84, and pushes the larger-sized crushing pole pieces in the space into the material guide pipe 83, and is blown upward to the top of the crushing roller 2 for secondary crushing.

[0051] 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 dry recovery device for sodium ion battery pole pieces, comprising a processing box (1) and a crushing roller (2), characterized in that: A fixed guide screening section (4) located below the crushing roller (2) is fixedly provided inside the processing box (1), and a rotating composite screening component (5) is sleeved inside the fixed guide screening section (4). An air supply component (9) is fixedly provided on the side of the processing box (1), and the air supply component (9) inputs pressurized air into the composite screening component (5). A ventilation reversing component (7) is fixedly provided on the other side of the processing box (1), and the ventilation reversing component (7) independently inputs pressurized air in the composite screening component (5) into the interior of the processing box (1) and into the guide component (8). The composite screening component (5) pushes the crushed pole pieces after screening into the guide component (8), and the pressurized air in the guide component (8) pushes the crushed pole pieces after screening into the crushing roller (2). The fixed guiding and screening part (4) comprises a guiding and screening arc cylinder (41), a guiding ramp (42) and an air guiding groove (43). The composite screening assembly (5) comprises a rotating shaft (51), spiral blades (52), an internal cavity (53), a purge hole (54) and an air inlet (55).

2. The dry recovery device for sodium ion battery pole pieces according to claim 1, characterized in that: A power mechanism (3) is fixedly provided on the side of the processing box (1), and the power mechanism (3) comprises a motor and a gear set. The power mechanism (3) drives the crushing roller (2) to rotate, and the crushing roller (2) is rotatably installed in the processing box (1).

3. The dry recovery device for sodium ion battery pole pieces according to claim 2, characterized in that: The bottom of the guiding and screening arc cylinder (41) is a semicircular structure, and the guiding and screening arc cylinder (41) has inclined structures on both sides. The guiding and screening arc cylinder (41) is fixed to the inside of the processing box (1) through the inclined structures on both sides. The guiding inclined platform (42) is fixedly connected to the top of the guiding and screening arc cylinder (41), and the air guide groove (43) is vertically opened inside the guiding inclined platform (42). The horizontal length of the guiding inclined platform (42) is smaller than the length of the guiding and screening arc cylinder (41), and the surface of the guiding and screening arc cylinder (41) is provided with sieve holes.

4. The dry recovery device for sodium ion battery pole pieces according to claim 3, characterized in that: The rotating shaft (51) is rotatably sleeved inside the processing box (1), and a second power mechanism (6) is fixedly provided on the side of the processing box (1). The second power mechanism (6) drives the rotating shaft (51) to rotate. The spiral blade (52) is fixedly sleeved on the outer surface of the rotating shaft (51) and is located in the recess of the guiding screening arc cylinder (41). The internal cavity (53) is opened inside the rotating shaft (51) and passes through one end of the rotating shaft (51). The purge hole (54) and the air inlet (55) are both opened on the outer surface of the rotating shaft (51), and the purge hole (54) and the air inlet (55) are both connected to the internal cavity (53).

5. The dry recovery device for sodium ion battery pole pieces according to claim 4, characterized in that: The spiral blade (52) rotates and pushes the broken pole pieces in the spiral guide screening arc cylinder (41) toward the left side, and the inclined lower end of the guide ramp (42) is close to the right side of the spiral blade (52). An outlet groove (10) is opened on the left side of the processing box (1), and the outlet groove (10) is aligned and connected with the left end of the guide screening arc cylinder (41).

6. The dry recovery device for sodium ion battery pole pieces according to claim 5, characterized in that: The air supply assembly (9) comprises an air pump (91) and a distribution cover (92); the air pump (91) is fixed to the right side surface of the processing box (1) via a mounting frame; the distribution cover (92) is fixed to the right side surface of the processing box (1) and sleeved on the outer surface of the rotating shaft (51); the air outlet end of the air pump (91) is fixedly connected and communicated with the distribution cover (92); a sealing ring is provided in the sleeve area of ​​the distribution cover (92) and the rotating shaft (51); the rotating shaft (51) is rotatably sleeved in the distribution cover (92).

7. The dry recovery device for sodium ion battery pole pieces according to claim 6, characterized in that: The ventilation reversing assembly (7) comprises a fixed sleeve (71), an air guide tube (72), a communicating hole (73), a bypass port (74), a spring (75), a control screw (76) and a middle frame (77). The fixed sleeve (71) is fixedly connected to the left side of the processing box (1) and sleeved on the outside of the rotating shaft (51). The fixed sleeve (71) is connected to the internal cavity (53). The air guide tube (72) is movably sleeved in the internal cavity (53). One end of the air guide tube (72) is kept sealed. The communicating hole (73) and the bypass port (74) are both provided on the outer surface of the air guide tube (72). The communicating holes (73) correspond to the purge holes (54) one by one. The bypass port (74) is located below the outer surface of the air guide tube (72) and is located near the through end of the rotating shaft (51). The control screw (76) is threadedly sleeved on the end of the fixed sleeve (71). One end of the spring (75) is fixed to the sealing end of the air guide tube (72) and the other end is fixedly connected to the fixed sleeve (71). The middle frame (77) is fixedly sleeved on the bottom of the fixed sleeve (71). The lower end of the middle frame (77) is fixedly sleeved in the material guide component (8) and is communicated with the interior of the material guide component (8).

8. The dry recovery device for sodium ion battery pole pieces according to claim 7, characterized in that: The material guide assembly (8) comprises a material guide seat (81), a material guide port (82), a material guide pipe (83) and a partition portion (84); the material guide seat (81) is fixedly connected to the left side of the processing box (1); the material guide port (82) is opened inside the material guide seat (81) and communicates with the outlet slot (10); one end of the material guide pipe (83) is fixedly connected to the end of the material guide seat (81), and the other end passes through the processing box (1) and extends to the top of the crushing roller (2); the partition portion (84) is movably sleeved in the material guide seat (81); and the top of the material guide seat (81) is fixedly sleeved with the middle frame (77).

9. The dry recovery device for sodium ion battery pole pieces according to claim 8, characterized in that: The partition part (84) is located on the right side of the bottom end of the middle frame (77), and comprises a sealing baffle and a threaded push rod. The threaded push rod is threadedly sleeved on the bottom of the material guide seat (81), and when it is rotated upward, it pushes the sealing baffle upward and seals and isolates the material guide port (82) in the middle of the material guide port (82).

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