Lithium iron phosphate graded particle demagnetization production device

Abstract

The utility model belongs to battery material production equipment technical field especially relates to a kind of lithium iron phosphate grading particle demagnetization production device, including cyclone separator and cloth bag dust collector, the discharge outlet of cyclone separator bottom and the discharge outlet of cloth bag dust collector are all connected with material collecting pipe, material collecting pipe is provided with material collecting structure, the bottom of material collecting pipe is connected with demagnetization structure, the bottom of demagnetization structure is connected with collection bag, and the bottom of collection bag is provided with bracing plate, rough particle in demagnetization outer frame is scattered under the action of demagnetization structure, and it is contacted with rough particle sufficiently, improve demagnetization efficiency, and rough particle after demagnetization falls into collection bag and is bagged along the bottom opening of demagnetization outer frame, the bottom of collection bag can be supported by the bracing plate set, the collection bag can be opened by the hook set, the bottom of bracing plate is provided with several insertion slots, so that staff uses forklift to carry collection bag.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery material production equipment, and in particular relates to a demagnetizing production device for lithium iron phosphate graded particles. Background Technology

[0002] Lithium iron phosphate (LFP) is a widely used cathode material in the current lithium-ion battery field. In the LFP production process, particle size distribution is controlled by adjusting the proportion of particles of different sizes to improve the bulk density of raw materials, thereby enhancing battery performance and compaction density. In existing technologies, cyclone separators are typically used to obtain raw material particles of different sizes. A powder pump carries the raw material particles tangentially into the cyclone separator, where they fall onto the classifying wheels inside. The rotating classifying wheels generate centrifugal force, which throws the material against the inner wall or baffles of the cyclone separator. At this point, coarse particles fall to the bottom of the cyclone separator under their own gravity, while fine particles float upwards under the influence of the airflow and pass through the discharge mechanism of the cyclone separator. The gas is discharged into the bag filter, which intercepts fine particles through the filter bags. When the gas carrying fine particles passes through the filter bags, the fine particles are trapped on the surface of the filter bags, and the gas is discharged through the gaps in the filter bags. However, in the current process, after the coarse and fine particles are separated, they fall directly into the collection bags for collection and bagging without being demagnetized. Subsequently, the raw materials in each collection bag need to be demagnetized individually by the staff, which increases the operation process and labor costs. In addition, the current collection bags are usually installed by hanging them on the bracket. During the collection process, as particles continue to fall, the weight of the collection bag gradually increases, and the lack of effective support at the bottom of the collection bag can easily cause the belt on which the collection bag is hung to break. Summary of the Invention

[0003] (a) Technical problems to be solved This invention provides a demagnetizing production device for lithium iron phosphate graded particles to address the problems in the prior art where coarse and fine particles are directly collected and bagged without demagnetization, requiring subsequent demagnetization of the raw materials in each collection bag, which increases the number of operation steps and labor costs, and the lack of effective support at the bottom of the collection bags hanging on the support, which easily leads to the breakage of the belt on which the collection bags are hung.

[0004] (II) Technical Content To achieve the above objectives, this utility model provides the following technical solution: A demagnetizing production device for graded lithium iron phosphate particles includes a cyclone separator and a bag filter. A feed pipe is provided on one side of the cyclone separator. An exhaust port is located at the top of the cyclone separator, and a discharge port is located at the bottom. The exhaust port at the top of the cyclone separator is connected to the feed end of the bag filter via a powder pump. A collecting pipe is connected to both the discharge port at the bottom of the cyclone separator and the discharge port of the bag filter. A collecting structure is installed in the collecting pipe, and a demagnetizing structure is connected to the bottom of the collecting pipe. A collecting bag is connected to the bottom of the demagnetizing structure, and a support plate is installed at the bottom of the collecting bag.

[0005] Furthermore, it also includes a cyclone separator bracket and a bag filter bracket. The cyclone separator is fixedly installed on the cyclone separator bracket. The material collection structure includes a first drive motor, a rotating shaft and partitions. The material collection pipe is rotatably connected to the rotating shaft. Several partitions are fixedly connected to the rotating shaft in a circular pattern. The side walls of the partitions are slidably connected to the inside of the material collection pipe. The first drive motor is installed on one side of the material collection pipe, and the output shaft of the first drive motor is fixedly connected to the rotating shaft. The bag filter is fixedly installed on the bag filter bracket.

[0006] Furthermore, the demagnetizing structure includes a demagnetizing outer frame and an electromagnetic rod. The bottom of the collecting pipe is provided with a discharge port, which is connected to the top of the demagnetizing outer frame. The bottom of the demagnetizing outer frame is open. Two hollow tubes are rotatably connected to the two adjacent inner sidewalls of the demagnetizing outer frame. One end of the hollow tube is located inside the demagnetizing outer frame, and the other end extends through the demagnetizing outer frame. An electromagnetic rod is fixedly connected to the end of the hollow tube located inside the demagnetizing outer frame. The electromagnetic rod is U-shaped. A controller is fixedly connected to the end of the hollow tube extending through the demagnetizing outer frame. The controller is electrically connected to the electromagnetic rod through an electrical wire, and the electrical wire is located in the corresponding hollow tube.

[0007] Furthermore, the two adjacent electromagnetic rods are arranged in a longitudinally staggered manner, and the two controllers on the same side of the magnetic outer frame are fixedly connected to the driven gear disks, and the two driven gear disks are meshed with the same directional gear disk; Two controllers on the other side of the demagnetizing frame are fixedly connected to synchronous gears. The two synchronous gears mesh with the same toothed synchronous belt. A second drive motor is installed on the cyclone separator bracket. The output shaft of the second drive motor is fixedly connected to one of the synchronous gears, and the corresponding electromagnetic rod is fixedly connected to a docking rod. The free end of the docking rod slides through the demagnetizing frame and is fixedly connected to the directional gear disk.

[0008] Furthermore, the output shaft of the second drive motor, the connecting rod, and the axis of the directional gear disk are all on the same axis; The driven gear disk and the directional gear disk are the same size and have the same number of teeth.

[0009] Furthermore, both the cyclone separator bracket and the bag filter bracket are equipped with bottom support bases, and the bottom support bases are equipped with alignment slots. The support plates are engaged in the alignment slots, and the bottom of the support plates has several slots.

[0010] Furthermore, the collection bag is placed on the corresponding support plate, and hooks are provided on both the cyclone separator bracket and the bag filter bracket. The collection bag is hung on the corresponding hooks, and the bag opening is fixed to the bottom opening of the corresponding demagnetizing frame by a rope.

[0011] (III) Beneficial Effects Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, as the partition rotates and separates the raw material particles, they are discharged into the demagnetizing outer frame. The output shaft of the second drive motor drives the corresponding synchronous gear to rotate 180° back and forth. With the cooperation of the toothed synchronous belt and the synchronous gear, the corresponding electromagnetic rod is driven to rotate, so that the two electromagnetic rods on the side of the demagnetizing outer frame close to the second drive motor rotate 180° back and forth. When the electromagnetic rod with the docking rod rotates, it drives the directional gear disk to rotate in the same direction through the docking rod. Under the meshing action, the two driven gear disks will rotate in the opposite direction to the directional gear disk, thereby driving the corresponding hollow tube and electromagnetic rod to rotate. This causes the two electromagnetic rods on the side of the demagnetizing frame away from the second drive motor to rotate 180° in opposite directions. This disperses the coarse particles discharged into the demagnetizing frame and allows for full contact with the coarse particles, improving the demagnetizing efficiency.

[0012] Second, in this utility model, the demagnetized coarse particles fall into the collection bag through the bottom opening of the demagnetizing frame. The bottom of the collection bag is supported by the set support plate, the collection bag can be opened by the set hook, and the set rope can prevent the coarse particles from scattering to the outside during the bagging process. The bottom of the support plate has several slots to facilitate the use of forklifts by inserting the forklift forks into the slots and lifting the support plate upward to separate the collection bag from the corresponding hook. The collection bag can then be moved to the designated location by the support plate, reducing the intensity and difficulty of manual handling.

[0013] Third, in this utility model, the support plate can be positioned by setting the alignment slot, so that the installed collection bag is located in the center of the support plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is an exploded view of the material collection pipe and the partition plate in this utility model; Figure 3This is an exploded view of the material collection pipe and partition plate in this utility model from another perspective. Figure 4 This is a cross-sectional view of the demagnetizing outer frame in this utility model; Figure 5 This is an exploded view of the controller and synchronizing gear in this utility model; Figure 6 This is an exploded view of the controller and driven gear disk in this utility model; Figure 7 This is an exploded view of the collection bag, support plate, and bottom support base in this utility model.

[0015] In the diagram: 1. Cyclone separator; 2. Baghouse dust collector; 3. Collection bag; 31. Support plate; 3101. Slot; 4. Hook; 5. Cyclone separator bracket; 6. Baghouse dust collector bracket; 7. Collection pipe; 71. First drive motor; 72. Rotating shaft; 73. Partition plate; 8. Demagnetizing frame; 81. Electromagnetic rod; 82. Hollow tube; 83. Controller; 84. Driven gear disc; 85. Reversing gear disc; 86. Synchronous gear; 87. Toothed synchronous belt; 88. Second drive motor; 89. Connecting rod; 9. Bottom support seat; 901. Alignment slot; 10. Powder pump. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 like Figures 1-7As shown, a demagnetizing production device for graded lithium iron phosphate particles includes a cyclone separator 1 and a bag filter 2. A feed pipe is provided on one side of the cyclone separator 1. The top of the cyclone separator 1 has an exhaust port, and the bottom has a discharge port. The exhaust port at the top of the cyclone separator 1 is connected to the feed end of the bag filter 2 via a powder pump 10. During feeding, the operator can connect the feed pipe to an external powder pump (not shown in the figure), which feeds the raw material particles into the cyclone separator 1 through the feed pipe. The raw material enters the cyclone separator 1 and falls onto the classifying wheel inside. The classifying wheel generates centrifugal force during rotation, which throws the material against the inner wall or baffle plate of the cyclone separator 1. At this time, coarse particles are separated by their own weight. The particles fall to the discharge port at the bottom of the cyclone separator 1 due to gravity, while the fine particles float upwards to the exhaust port at the top of the cyclone separator 1 under the action of airflow. The fine particles at the exhaust port are then pumped into the bag filter 2 by the powder pump 10 at the top of the cyclone separator 1. The bag filter 2 intercepts the fine particles, thus collecting raw materials of different particle sizes. However, as is well known to those skilled in the art, the working principles and wiring methods of the cyclone separator 1, the powder pump 10, and the bag filter 2 are commonplace and conventional, and will not be elaborated upon here. Both the discharge port at the bottom of the cyclone separator 1 and the discharge port of the bag filter 2 are connected to a collecting pipe 7, which contains a collecting structure, specifically: Figures 1-3 As shown, the collection structure includes a first drive motor 71, a rotating shaft 72, and partitions 73. The collection pipe 7 is rotatably connected to the rotating shaft 72, and several partitions 73 are fixedly connected to the rotating shaft 72 in a circular pattern. The sidewalls of the partitions 73 are slidably connected to the inside of the collection pipe 7. The first drive motor 71 is installed on one side of the collection pipe 7, and the output shaft of the first drive motor 71 is fixedly connected to the rotating shaft 72. During the grading process, coarse particles in the cyclone separator 1 will fall between two adjacent partitions 73 through the outlet of the cyclone separator 1 for collection and concentration. The output shaft of the first drive motor 71 drives the rotating shaft 72 to rotate, thereby driving the partitions 73 to rotate. The fine particles intercepted in the bag filter 2 will fall through the discharge port of the bag filter 2 into the space between two adjacent partitions 73 for collection and concentration. The output shaft of the corresponding first drive motor 71 drives the rotating shaft 72 to rotate, thereby driving the partitions 73 to rotate. The bottom of the collecting pipe 7 is connected to a demagnetizing structure, specifically as follows: Figures 4-6As shown, the demagnetizing structure includes a demagnetizing outer frame 8 and an electromagnetic rod 81. The bottom of the collecting pipe 7 is provided with a discharge port, which is connected to the top of the demagnetizing outer frame 8. The bottom of the demagnetizing outer frame 8 is open. Two hollow tubes 82 are rotatably connected to the two adjacent inner sidewalls of the demagnetizing outer frame 8. One end of the hollow tube 82 is located inside the demagnetizing outer frame 8, and the other end extends through the demagnetizing outer frame 8. An electromagnetic rod 81 is fixedly connected to the end of the hollow tube 82 located inside the demagnetizing outer frame 8. The electromagnetic rod 81 is U-shaped. A controller 83 is fixedly connected to the end of the hollow tube 82 extending through the demagnetizing outer frame 8. The controller 83 is electrically connected to the electromagnetic rod 81 through an electrical wire, and the electrical wire is located in the corresponding hollow tube 82. The controller 83 can regulate the corresponding electromagnetic rod 81 to change the magnetic force of the electromagnetic rod 81. The hollow tube 82 can protect the electrical wire.

[0018] Furthermore, the two adjacent electromagnetic rods 81 are arranged in a longitudinally staggered manner, and the two controllers 83 on the same side of the magnetic outer frame 8 are fixedly connected to the driven gear disks 84, and the two driven gear disks 84 are meshed with the same directional gear disk 85. Two controllers 83 on the other side of the demagnetizing frame 8 are fixedly connected to synchronous gears 86. The two synchronous gears 86 mesh with the same toothed synchronous belt 87. A second drive motor 88 is installed on the cyclone separator bracket 5. The output shaft of the second drive motor 88 is fixedly connected to one of the synchronous gears 86, and the corresponding electromagnetic rod 81 is fixedly connected to a docking rod 89. The free end of the docking rod 89 slides through the demagnetizing frame 8 and is fixedly connected to the directional gear disk 85. The output shaft of the second drive motor 88, the connecting rod 89, and the axis of the directional gear disk 85 are on the same axis; The driven gear disk 84 and the directional gear disk 85 are the same size and have the same number of teeth.

[0019] Specifically, the output shaft of the first drive motor 71 drives the corresponding rotating shaft 72 to rotate, thereby driving the corresponding partition 73 to rotate. As the partition 73 rotates, the coarse particles between the two adjacent partitions 73 are discharged into the demagnetizing outer frame 8. The output shaft of the second drive motor 88 drives the corresponding synchronous gear 86 to rotate 180° back and forth. Under the action of the toothed synchronous belt 87, it drives another synchronous gear 86 to rotate in the same direction. Thus, the synchronous gear 86 drives the corresponding hollow tube 82 and electromagnetic rod 81 to rotate, so that the two electromagnetic rods 81 on the side of the demagnetizing outer frame 8 closest to the second drive motor 88 rotate 180° back and forth. When the electromagnetic rod 81 with the docking rod 89 rotates, it drives the directional gear disk 85 to rotate in the same direction through the docking rod 89. Under the meshing action, the two driven gear disks 84 will rotate in the opposite direction to the directional gear disk 85, thereby driving the corresponding hollow tube 82 and electromagnetic rod 81 to rotate, so that the two electromagnetic rods 81 on the side of the demagnetizing frame 8 away from the second drive motor 88 will rotate 180° in opposite directions; thereby breaking up the coarse particles discharged into the demagnetizing frame 8 and making full contact with the coarse particles, improving the demagnetizing efficiency.

[0020] The fine particles are discharged into the corresponding demagnetizing outer frame 8. The method of demagnetizing the fine particles is the same as described above, and will not be repeated here.

[0021] Furthermore, such as Figure 1 and Figure 7 As shown, the lithium iron phosphate graded particle demagnetization production device also includes a cyclone separator support 5 and a bag filter support 6. The cyclone separator 1 is fixedly installed on the cyclone separator support 5, and the bag filter 2 is fixedly installed on the bag filter support 6. The bottom of the demagnetizing structure is connected to a collection bag 3, and the bottom of the collection bag 3 is provided with a support plate 31. Specifically, the bottom of the cyclone separator bracket 5 and the bag dust collector bracket 6 are both provided with a bottom support seat 9, and the bottom support seat 9 is provided with an alignment slot 901. The support plate 31 is engaged in the alignment slot 901. By setting the alignment slot 901, the support plate 31 can be positioned so that the installed collection bag 3 is located in the middle of the support plate 31. Furthermore, the collection bag 3 is placed on the corresponding support plate 31, and hooks 4 are provided on both the cyclone separator bracket 5 and the bag dust collector bracket 6. The collection bag 3 is hung on the corresponding hooks 4, and the bag opening of the collection bag 3 is fixed to the bottom opening of the corresponding demagnetizing frame 8 by a rope.

[0022] After demagnetization, the coarse particles fall into the collection bag 3 through the bottom opening of the demagnetization frame 8. The bottom of the collection bag 3 is supported by the support plate 31, the collection bag 3 can be opened by the hook 4, and the rope can prevent the coarse particles from scattering to the outside during the bagging process.

[0023] After the collection bag 3 has been collected, the rope is removed and the outer wall of the collection bag 3 is separated from the hook 4. The collection bag 3 is then sealed. The bottom of the support plate 31 has several slots 3101 so that workers can use a forklift. By inserting the forklift's fork arm into the slot 3101 and lifting the support plate 31 upwards, the collection bag 3 can be separated from the corresponding hook 4. The collection bag 3 can then be moved to the designated location via the support plate 31, reducing the intensity and difficulty of manual handling.

[0024] In summary, the workflow of this utility model is as follows: Before starting work, attach the support plate 31 to the alignment slot 901, hang the collection bag 3 on the corresponding hook 4, and use a rope to fix the bag opening of the collection bag 3 to the bottom opening of the corresponding demagnetizing frame 8. When feeding, the operator can connect the feed pipe to an external powder pump (not shown in the figure). The external powder pump sends the raw material particles into the cyclone separator 1 through the feed pipe. The raw material enters the cyclone separator 1 and falls onto the classifying wheel inside the cyclone separator 1. When the classifying wheel rotates, it generates centrifugal force. Under the action of centrifugal force, the material is thrown towards the inner wall or baffle of the cyclone separator 1. At this time, the coarse particles fall to the discharge port at the bottom of the cyclone separator 1 under their own gravity and are discharged, while the fine particles float upward to the exhaust port at the top of the cyclone separator 1 under the action of airflow. The fine particles at the exhaust port are discharged into the bag filter 2 by the powder pump 10 at the top of the cyclone separator 1. The bag filter 2 intercepts the fine particles, thereby collecting raw materials of different particle sizes. During the grading process, coarse particles in the cyclone separator 1 will fall between two adjacent partitions 73 through the discharge port of the cyclone separator 1 for collection and concentration. The output shaft of the first drive motor 71 drives the rotating shaft 72 to rotate, thereby driving the partitions 73 to rotate. As the partitions 73 rotate, the coarse particles between the two adjacent partitions 73 are discharged into the demagnetizing frame 8. The output shaft of the second drive motor 88 drives the corresponding synchronous gear 86 to rotate 180° back and forth. Under the action of the toothed synchronous belt 87, it drives another synchronous gear 86 to rotate in the same direction. Thus, the synchronous gear 86 drives the corresponding hollow tube 82 and electromagnetic rod 81 to rotate, causing the two electromagnetic rods 81 on the side of the demagnetizing frame 8 closest to the second drive motor 88 to rotate 180° back and forth. When the electromagnetic rod 81 with the docking rod 89 rotates, it drives the directional gear disk 85 to rotate in the same direction through the docking rod 89. Under the meshing action, the two driven gear disks 84 will rotate in the opposite direction to the directional gear disk 85, thereby driving the corresponding hollow tube 82 and electromagnetic rod 81 to rotate, so that the two electromagnetic rods 81 on the side of the demagnetizing frame 8 away from the second drive motor 88 will rotate 180° in opposite directions. This will disperse the coarse particles discharged into the demagnetizing frame 8 and make full contact with the coarse particles, thereby improving the demagnetizing efficiency. The demagnetized coarse particles fall into the collection bag 3 through the bottom opening of the demagnetizing frame 8 for bagging. Meanwhile, the fine particles are discharged into the corresponding demagnetizing frame 8. The method of demagnetizing the fine particles is the same as described above and will not be repeated here. After the collection bag 3 has finished collecting, remove the rope and separate the outer wall of the collection bag 3 from the hook 4. Seal the collection bag 3 after collection. Insert the fork arm of the forklift into the slot 3101 and lift the support plate 31 upward to separate the collection bag 3 from the corresponding hook 4. Then, use the support plate 31 to move the collection bag 3 to the designated location.

[0025] However, as is well known to those skilled in the art, the working principles and wiring methods of the cyclone separator 1, bag filter 2, powder pump 10, first drive motor 71, electromagnetic rod 81, controller 83 and second drive motor 88 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0026] The different embodiments described above can be combined, substituted, or used in combination with each other.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A demagnetizing production apparatus for graded lithium iron phosphate particles, comprising a cyclone separator (1) and a bag filter (2), characterized in that: The cyclone separator (1) is provided with a feed pipe on one side. The top of the cyclone separator (1) is provided with an exhaust port and the bottom is provided with a discharge port. The exhaust port at the top of the cyclone separator (1) is connected to the feed end of the bag filter (2) through the powder pump (10). The discharge port at the bottom of the cyclone separator (1) and the discharge port of the bag filter (2) are both connected to a collection pipe (7). A collection structure is provided in the collection pipe (7). The bottom of the collection pipe (7) is connected to a demagnetizing structure. The bottom of the demagnetizing structure is connected to a collection bag (3). The bottom of the collection bag (3) is provided with a support plate (31).

2. The lithium iron phosphate graded particle demagnetization production device according to claim 1, characterized in that: It also includes a cyclone separator bracket (5) and a bag filter bracket (6). The cyclone separator (1) is fixedly installed on the cyclone separator bracket (5). The material collection structure includes a first drive motor (71), a rotating shaft (72) and a partition (73). The material collection pipe (7) is rotatably connected to the rotating shaft (72). Several partitions (73) are fixedly connected in a circular pattern on the rotating shaft (72). The side wall of the partition (73) is slidably connected to the inside of the material collection pipe (7). The first drive motor (71) is installed on one side of the material collection pipe (7), and the output shaft of the first drive motor (71) is fixedly connected to the rotating shaft (72). The bag filter (2) is fixedly installed on the bag filter bracket (6).

3. The lithium iron phosphate graded particle demagnetization production device according to claim 2, characterized in that: The demagnetizing structure includes a demagnetizing outer frame (8) and an electromagnetic rod (81). The bottom of the collecting pipe (7) is provided with a discharge port, which is connected to the top of the demagnetizing outer frame (8). The bottom of the demagnetizing outer frame (8) is open. Two hollow tubes (82) are rotatably connected to the two inner sidewalls of the demagnetizing outer frame (8). One end of the hollow tube (82) is located inside the demagnetizing outer frame (8), and the other end passes through the demagnetizing outer frame (8). An electromagnetic rod (81) is fixedly connected to one end of the hollow tube (82) inside the demagnetizing outer frame (8). The electromagnetic rod (81) is U-shaped. A controller (83) is fixedly connected to one end of the hollow tube (82) passing through the demagnetizing outer frame (8). The controller (83) is electrically connected to the electromagnetic rod (81) through an electrical wire, and the electrical wire is located in the corresponding hollow tube (82).

4. The lithium iron phosphate graded particle demagnetization production device according to claim 3, characterized in that: The two adjacent electromagnetic rods (81) are arranged in a longitudinally staggered manner. The two controllers (83) on the same side of the magnetic outer frame (8) are fixedly connected to the driven gear disks (84), and the two driven gear disks (84) are meshed with the same directional gear disk (85). Two controllers (83) on the other side of the demagnetizing frame (8) are fixedly connected to synchronous gears (86). The two synchronous gears (86) mesh with the same toothed synchronous belt (87). A second drive motor (88) is installed on the cyclone separator bracket (5). The output shaft of the second drive motor (88) is fixedly connected to one of the synchronous gears (86), and the corresponding electromagnetic rod (81) is fixedly connected to a docking rod (89). The free end of the docking rod (89) slides through the demagnetizing frame (8) and is fixedly connected to the directional gear disk (85).

5. The lithium iron phosphate graded particle demagnetization production apparatus according to claim 4, characterized in that: The output shaft of the second drive motor (88), the connecting rod (89), and the axis of the directional gear disk (85) are on the same axis; The driven gear disk (84) and the directional gear disk (85) are the same size and have the same number of teeth.

6. The lithium iron phosphate graded particle demagnetization production apparatus according to claim 3, characterized in that: Both the cyclone separator bracket (5) and the bag filter bracket (6) are provided with a bottom support base (9). The bottom support base (9) is provided with an alignment slot (901). The support plate (31) is engaged in the alignment slot (901). The bottom of the support plate (31) is provided with several slots (3101).

7. The lithium iron phosphate graded particle demagnetization production apparatus according to claim 6, characterized in that: The collection bag (3) is placed on the corresponding support plate (31). The cyclone separator bracket (5) and the bag dust collector bracket (6) are both equipped with hooks (4). The collection bag (3) is hung on the corresponding hooks (4). The bag opening of the collection bag (3) is fixed to the bottom opening of the corresponding demagnetizing frame (8) by a rope.

Images