Pot overturning and demagnetizing device

Abstract

The utility model relates to the technical field of electrode material manufacturing, and discloses a pot turning demagnetizing device which comprises a rack and a pot turning shell, and the rack is used for supporting the pot turning shell; the saggar overturning cavity is formed in the saggar overturning shell, a saggar is contained in the saggar overturning cavity, the saggar is suitable for overturning in the saggar overturning cavity, and the saggar is suitable for containing materials; the demagnetizing assembly comprises permanent magnet rods and a grid, and the permanent magnet rods are evenly distributed on the inner wall of the overturning bowl cavity and used for adsorbing magnetic foreign matter in the materials; and the grating is magnetic, is fixed at the bottom of the overturning bowl cavity and is suitable for further adsorbing magnetic foreign matters in the materials. And the permanent magnet rods and the magnetic grids are combined to remove magnetism, so that magnetic foreign matters in the materials can be comprehensively adsorbed, and the purity of the materials is improved. And the materials are fully mixed in the rolling process through the matching of the turning bowl cavity and the saggar, so that the consistency of material treatment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrode material manufacturing, and particularly relates to a tilting pot demagnetization device. BACKGROUND

[0002] In the production process of lithium battery positive electrode material, kiln sintering is one of the core processes. The sintered material needs to be turned over and discharged and crushed for further processing. However, in the process of turning over, the friction between the material and the sagger can cause the generation and mixing of metal foreign matter (such as iron filings), which can seriously affect the performance of lithium batteries, such as causing battery short circuit or reducing battery life.

[0003] In related technologies, the commonly used tilting pot device mainly focuses on the discharge and conveying of the material, and has limited removal ability of metal foreign matter. In the process of turning over, the material is easy to accumulate inside the device, affecting the fluidity of the material. At the same time, the existing device lacks real-time monitoring and automatic adjustment function of the content of magnetic foreign matter, and cannot dynamically optimize the demagnetization effect according to the characteristics of the material. SUMMARY

[0004] Therefore, the utility model provides a tilting pot demagnetization device to solve the problem of poor demagnetization effect in the process of turning over.

[0005] The utility model provides a tilting pot demagnetization device, which comprises:

[0006] The rack is used for supporting the tilting pot shell.

[0007] The tilting pot cavity is provided inside the tilting pot shell, and the sagger is accommodated in the tilting pot cavity. The sagger is adapted to roll in the tilting pot cavity, and the material is adapted to be accommodated in the sagger.

[0008] The demagnetization assembly comprises permanent magnets and a grid. The permanent magnets are uniformly distributed on the inner wall of the tilting pot cavity and are used for adsorbing the magnetic foreign matter in the material. The grid has magnetism and is fixed to the bottom of the tilting pot cavity and is adapted to further adsorb the magnetic foreign matter in the material.

[0009] Beneficial effects: The utility model provides a kind of turn over pot demagnetizing device, support turn over pot shell by rack, and set up turn over pot cavity in turn over pot shell inside, and put box pot in cavity, box pot is used to contain material and can be in cavity tumbling, it is helpful to material in turn over pot cavity fully mixed and tumble, ensure that material processing is uniform. Demagnetizing assembly includes permanent magnet bar and grid, permanent magnet bar is evenly distributed on the inner wall of turn over pot cavity, and grid has magnetism and is fixed in the bottom of cavity, can effectively adsorb magnetic foreign matter in material, ensure that magnetic impurity is removed in the process of material, improve the purity of material. The combination of permanent magnet bar and magnetic grid can fully adsorb magnetic foreign matter in material, improve the purity of material. The cooperation of turn over pot cavity and box pot makes material fully mixed in tumbling process, ensure the consistency of material processing.

[0010] In an alternative embodiment, the turn over pot demagnetizing device further comprises a turn over pot driving mechanism adapted to drive the box pot to turn over, the turn over pot driving mechanism comprising a motor, a speed reducer and a turning arm, the motor being adapted to drive the turning arm through the speed reducer, so that the box pot has a turning state and a stationary state.

[0011] Beneficial effects: the combination of motor, speed reducer and turning arm can drive the box pot to turn over in the turn over pot cavity, the motor drives the turning arm through the speed reducer, so that the box pot switches between the turning state and the stationary state, thereby realizing the full tumbling and mixing of material and realizing the automation of box pot turning over, reducing manual intervention and improving operation efficiency. Through the cooperation of motor and speed reducer, the turning speed and frequency of box pot can be accurately controlled to adapt to the processing needs of different materials. The turning of box pot makes the material move fully in the turn over pot cavity, ensuring that the magnetic foreign matter fully contacts with the permanent magnet bar and the magnetic grid, and improving the demagnetizing effect. The switching between the turning state and the stationary state enables the material to be fully mixed and stably demagnetized in the stationary state during processing, improving the overall processing efficiency.

[0012] In an alternative embodiment, the number of permanent magnet bars is at least one, and the permanent magnet bars are detachably connected to the inner wall of the turn over pot cavity.

[0013] Beneficial effects: the permanent magnet bar has the function of adsorbing magnetic impurities, and the number of permanent magnet bars can be flexibly adjusted according to actual needs to adapt to different material processing capacity and demagnetizing requirements. The detachable connection design makes the installation, replacement and maintenance of permanent magnet bar more convenient, improving the applicability and flexibility of the equipment. The permanent magnet bars are evenly distributed on the inner wall of the turn over pot cavity, which can fully adsorb the magnetic foreign matter in the material, ensuring the demagnetizing effect. The detachable connection design of permanent magnet bar makes it possible to clean or replace it regularly, avoiding the accumulation of magnetic foreign matter affecting the demagnetizing efficiency. The detachable connection design of permanent magnet bar and turn over pot cavity makes the maintenance and cleaning work more simple and fast.

[0014] In an optional embodiment, the grid structure is a square grid, arranged by regularly distributed square permanent magnet units, with gaps between the square permanent magnet units, and the grid is fixed to the bottom of the tilting bowl cavity.

[0015] Benefits: The grid adopts a square grid structure, arranged by regularly distributed square permanent magnet units, with gaps between the square permanent magnet units, and the grid is fixed to the bottom of the tilting bowl cavity. The regular arrangement of square permanent magnet units can uniformly cover the bottom of the tilting bowl cavity, ensuring that the material is in full contact with the magnetic surface during the tilting process, improving the adsorption efficiency of magnetic foreign matter. The gap design allows the material to pass through the grid smoothly, while the magnetic foreign matter is effectively adsorbed, avoiding blockage. The structure of the square grid and the gap design allow the material to flow smoothly during the tilting process, avoiding material accumulation or jamming, ensuring the continuity and efficiency of the processing process. The regular arrangement of square permanent magnet units forms a stable grid structure, which can withstand the impact and friction of the material, prolonging the service life. The grid is fixed to the bottom of the tilting bowl cavity, ensuring its stability during equipment operation, avoiding displacement or falling off.

[0016] In an optional embodiment, the motor includes a variable frequency motor, suitable for adjusting the tilting speed; the tilting arm and the tilting bowl cavity are connected through a bearing.

[0017] Benefits: The variable frequency motor can flexibly adjust the tilting speed according to the processing needs of the material, achieving the best processing effect. The variable frequency motor automatically reduces the speed at low load, reducing energy consumption and improving the energy efficiency ratio of the equipment. The variable frequency motor starts smoothly, reducing the impact on the mechanical structure and prolonging the service life of the equipment.

[0018] In an optional embodiment, the tilting bowl cavity is provided with an inlet and an outlet, the outlet is located at the bottom of the tilting bowl cavity, and the inlet is provided with a return line, the return line is suitable for conveying the tilting bowl to the tilting bowl cavity.

[0019] Benefits: The outlet is located at the bottom of the tilting bowl cavity, using gravity to make the material fall naturally, ensuring that the material can be quickly and completely discharged, reducing residue. The return line of the inlet can re-convey the processed tilting bowl to the tilting bowl cavity, realizing continuous operation, reducing manual intervention, and improving production efficiency.

[0020] In an optional embodiment, the return line includes a conveyor belt and a guide device, the conveyor belt is used to convey the tilting bowl, and the guide device is suitable for ensuring that the tilting bowl remains stable during the conveying process and accurately aligns with the inlet.

[0021] Beneficial effects: The conveyor belt can quickly and continuously transport the sagger from the discharge port back to the feeding port, realizing the cyclic treatment of the material and significantly improving the production efficiency. The automatic design of the conveyor belt reduces manual intervention, reduces the labor intensity of the operators, and improves the continuity and stability of the operation. The guide device can ensure that the sagger remains stable on the conveyor belt, avoid transportation errors caused by shaking or deviation, and reduce equipment failure and downtime. The guide device ensures that the sagger is accurately aligned with the feeding port during transportation, avoiding feeding failure or material spilling caused by position deviation.

[0022] In an alternative embodiment, the sagger turning shell is also provided with an observation window, which is suitable for observing the inside of the sagger cavity.

[0023] Beneficial effects: The observation window allows the operator to directly observe the material processing inside the sagger cavity, and real-time monitor the tumbling, mixing and demagnetization effect of the material.

[0024] In an alternative embodiment, the inner surface of the sagger cavity is provided with a wear-resistant layer.

[0025] Beneficial effects: The wear-resistant layer can effectively resist the friction and impact of the material on the inner surface of the cavity during tumbling, reduce wear and tear, and prolong the service life of the sagger cavity.

[0026] In an alternative embodiment, the surface of the permanent magnet rod is provided with a wear-resistant layer.

[0027] Beneficial effects: The wear-resistant layer can effectively resist the friction and impact of the material on the surface of the permanent magnet rod during tumbling, reduce wear and tear, and prolong the service life of the permanent magnet rod. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Fig. 1 is a schematic view of the sagger demagnetization device of the present application;

[0030] Fig. 2 is a top view of the sagger demagnetization device of the present application.

[0031] MARKED DESCRIPTION:

[0032] 1, rack; 2, turning bowl cavity; 21, turning bowl driving mechanism; 211, motor; 212, speed reducer; 213, turning arm; 3, demagnetization assembly; 31, permanent magnet rod; 32, grid; 4, feeding port; 5, discharging port. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0037] In the production process of lithium battery positive electrode material, kiln sintering is one of the core processes. The sintered material usually exists in the form of blocks or particles in the high-temperature-resistant saggar, which needs to be turned over and crushed to further process into the required positive electrode material. However, in the turning process, friction and collision between the material and the saggar are inevitable, and such mechanical action can cause metal foreign matter (such as iron filings, nickel filings, etc.) on the surface of the saggar or the material itself. Once these metal foreign matters are mixed into the positive electrode material, they will seriously harm the performance of the lithium battery. For example, during the charging and discharging process of the battery, the metal foreign matter may pierce the separator, causing internal short circuit of the battery, and even causing thermal runaway and other safety problems; at the same time, the existence of metal foreign matter will also accelerate the capacity decay of the battery, significantly reducing the cycle life and use performance of the battery. Therefore, effectively removing metal foreign matter is a crucial link in the production process of lithium battery positive electrode material.

[0038] In the related art, the commonly used turning device mainly focuses on the discharge and conveying functions of the material, and the design goal is to quickly and efficiently transfer the sintered material from the saggar to the next process. However, these devices have limited metal foreign matter removal capability, and usually only a simple magnetic separation device is provided at the discharge port 5, which cannot comprehensively cover all aspects of the material flow. During the turning process, due to the physical properties of the material (such as particle size, humidity, viscosity, etc.) and the limitations of the device structure design, the material is prone to accumulate in some areas (such as corners, joints) inside the device, forming "dead corners". Such accumulation not only reduces the flowability of the material, affecting production efficiency, but also increases the opportunity for repeated friction between metal foreign matter and the material, further exacerbating the generation and mixing of metal foreign matter. In addition, the existing device lacks real-time monitoring and automatic adjustment function for the content of magnetic foreign matter, and cannot dynamically optimize the magnetic removal effect according to the characteristics of the material (such as the content of magnetic foreign matter, the flowability of the material, etc.). For example, when the content of magnetic foreign matter in the material is high, the device cannot automatically increase the magnetic separation intensity; and when the flowability of the material is poor, the device cannot adjust the turning speed or vibration frequency to improve the flow state of the material. Such static and passive design makes it difficult to ensure the complete removal of metal foreign matter in the material in actual production, thereby affecting the quality consistency of the final product.

[0039] The embodiments of the present application will be described below in conjunction with Figs. 1-2 .

[0040] According to the embodiments of the utility model, provide a kind of turn over pot magnetic removal device, comprising: rack 1 and turn over pot shell, rack 1 is used to support turn over pot shell;Turn over pot cavity 2, turn over pot shell inside has turn over pot cavity 2, turn over pot cavity 2 contains box, box is suitable for in turn over pot cavity 2 rolls, box is suitable for accommodating material in;Magnetic removal component 3, magnetic removal component 3 includes permanent magnet bar 31 and grid 32, permanent magnet bar 31 is evenly distributed on the inner wall of turn over pot cavity 2, for adsorbing magnetic foreign matter in material;Grid 32 has magnetism, is fixed in the bottom of turn over pot cavity 2, is suitable for further adsorbing the magnetic foreign matter in the material.

[0041] The utility model provides a kind of turn over pot magnetic removal device, by rack 1 support turn over pot shell, and set up turn over pot cavity 2 in turn over pot shell inside, cavity is placed box, box is used to accommodate material and can roll in cavity, it is helpful to material in turn over pot cavity 2 fully mixes and rolls, ensure that material processing is uniform.

[0042] The main structure of the tilting pan demagnetizing device is supported by a frame 1 made of high-strength material to ensure stability and durability during operation. The design of the frame 1 also considers the mobility and maintenance convenience of the equipment, facilitating installation and adjustment in the production site. The tilting pan shell is fixed on the frame 1 as the external protective structure of the device, also serving as support for the internal components. The shell is designed with a sealed structure to prevent material leakage during the tilting process and reduce the entry of external dust or foreign matter. Inside the tilting pan shell, there is a tilting pan cavity 2, which is the core area for material processing. The shape and size of the cavity are optimized to ensure that the material can flow and mix fully inside. The sagger is a container placed inside the tilting pan cavity 2 to hold the sintered material. The sagger is made of high-temperature and wear-resistant materials to withstand friction and impact during the tilting process. The sagger is designed to be rollable, rotating or vibrating inside the cavity when the device is running, allowing the material to mix and tumble fully inside. This design not only improves the uniformity of material processing but also helps the material to fully contact the demagnetizing components 3. The permanent magnet bar 31 is made of high-strength permanent magnet material, capable of generating a stable magnetic field to attract magnetic foreign matter (such as iron filings, nickel filings, etc.) in the material. The distribution of the permanent magnet bar 31 is optimized to ensure that the magnetic field covers the entire cavity, avoiding magnetic field dead angles. At the bottom of the cavity, there is a magnetic grid 32 that can attract magnetic foreign matter separated from the material. The grid 32 is designed for easy disassembly and cleaning to ensure effectiveness over a long period of use. Through the combination of the permanent magnet bar 31 and the magnetic grid 32, the device can achieve multi-level magnetic foreign matter removal. The material continuously contacts the permanent magnet bar 31 and the grid 32 during the tilting process, and the magnetic foreign matter is firmly attracted, significantly improving the purity of the material.

[0043] Further, the tilting pan shell is also provided with an observation window suitable for observing the inside of the tilting pan cavity 2. The observation window allows the operator to directly observe the material processing inside the tilting pan cavity 2, and monitor the tumbling, mixing and demagnetization effect of the material in real time.

[0044] As an implementation form, the inner surface of the tilting pan cavity 2 is provided with a wear-resistant layer. The wear-resistant layer can effectively resist the friction and impact of the material on the inner surface of the cavity during tumbling, reducing wear and tear and prolonging the service life of the tilting pan cavity 2.

[0045] As an implementation form, the surface of the permanent magnet bar 31 is provided with a wear-resistant layer. The wear-resistant layer can effectively resist the friction and impact of the material on the surface of the permanent magnet bar 31 during tumbling, reducing wear and tear and prolonging the service life of the permanent magnet bar 31.

[0046] In some embodiments, in combination with Fig. 1As shown, the pot turning and demagnetizing device further comprises a pot turning driving mechanism 21 adapted to drive the turning of the pot. The pot turning driving mechanism 21 comprises a motor 211, a speed reducer 212 and a turning arm 213. The motor 211 is adapted to drive the turning arm 213 through the speed reducer 212, so that the pot has a turning state and a static state.

[0047] Through the combination of the motor 211, the speed reducer 212 and the turning arm 213, the pot can be driven to turn in the pot turning cavity 2. The motor 211 drives the turning arm 213 through the speed reducer 212, so that the pot switches between the turning state and the static state, thereby realizing the full tumbling and mixing of the material, realizing the automation of the pot turning, reducing the manual intervention and improving the operation efficiency. Through the cooperation of the motor 211 and the speed reducer 212, the turning speed and frequency of the pot can be accurately controlled to adapt to the processing needs of different materials. The turning of the pot makes the material move fully in the pot turning cavity 2, ensuring that the magnetic foreign matter fully contacts with the permanent magnet rod 31 and the magnetic grid 32, and improving the demagnetization effect. The switching between the turning state and the static state enables the material to be fully mixed during the processing and to be stably demagnetized in the static state, thereby improving the overall processing efficiency.

[0048] Further, the motor 211 comprises a variable frequency motor 211 adapted to adjust the turning speed; the turning arm 213 is connected with the pot turning cavity 2 through a bearing. The variable frequency motor 211 can flexibly adjust the turning speed according to the processing needs of the material, so as to realize the best processing effect. The variable frequency motor 211 automatically reduces the speed at low load, reduces the energy consumption and improves the energy efficiency ratio of the equipment. The variable frequency motor 211 starts smoothly, reduces the impact on the mechanical structure and prolongs the service life of the equipment.

[0049] In some embodiments, in combination Fig. 2 As shown, the pot turning cavity 2 is provided with a feeding port 4 and a discharging port 5. The discharging port 5 is located at the bottom of the pot turning cavity 2, and the feeding port 4 is provided with a return line adapted to convey the pot to the pot turning cavity 2.

[0050] The discharging port 5 is located at the bottom of the pot turning cavity 2, and the material falls naturally under the action of gravity, so as to ensure that the material can be quickly and completely discharged, reducing the residue. The return line of the feeding port 4 can convey the processed pot to the pot turning cavity 2 again, realizing continuous operation, reducing manual intervention and improving production efficiency.

[0051] Further, the return line comprises a conveyor belt for conveying the sagger and a guide device adapted to ensure the sagger remains stable during conveying and accurately aligns with the feeding port 4. The conveyor belt can quickly and continuously convey the sagger from the discharging port 5 back to the feeding port 4, realizing the cyclic processing of the material and significantly improving the production efficiency. The automated design of the conveyor belt reduces manual intervention, reduces the labor intensity of the operators, and at the same time improves the continuity and stability of the operation. The guide device can ensure the sagger remains stable on the conveyor belt, avoiding conveying errors caused by shaking or deviation, reducing equipment failure and downtime. The guide device ensures the sagger accurately aligns with the feeding port 4 during conveying, avoiding feeding failure or material spilling caused by position deviation.

[0052] Obviously, the above embodiments are only examples for clearly illustrating, but not limit the embodiments. Although the embodiments of the present application are described in conjunction with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the present application.

Claims

1. A bowl turning demagnetizing device characterized by comprising: The invention relates to a tilting pot magnetic removal device, comprising: a rack (1) and a tilting pot shell, the rack (1) being used to support the tilting pot shell; a tilting pot cavity (2) inside the tilting pot shell, the tilting pot cavity (2) containing a tilting pot, the tilting pot being adapted to tumble inside the tilting pot cavity (2), and the tilting pot being adapted to contain material; a magnetic removal assembly (3), the magnetic removal assembly (3) comprising permanent magnetic rods (31) and a grid (32), the permanent magnetic rods (31) being evenly distributed on the inner wall of the tilting pot cavity (2) and being used to attract magnetic foreign matter in the material, and the grid (32) being magnetic and being fixed to the bottom of the tilting pot cavity (2) and being adapted to further attract magnetic foreign matter in the material.

2. The bowl flipping and demagnetizing device according to claim 1, characterized in that, The tilting pot magnetic removal device further comprises a tilting pot driving mechanism (21), the tilting pot driving mechanism (21) being adapted to drive the tilting pot to tumble, the tilting pot driving mechanism (21) comprising a motor (211), a speed reducer (212) and a tilting arm (213), the motor (211) being adapted to drive the tilting arm (213) through the speed reducer (212) so that the tilting pot has a tumbling state and a stationary state.

3. The bowl flipping and demagnetizing device according to claim 1, characterized in that, The number of the permanent magnetic rods (31) is at least one, and the permanent magnetic rods (31) are clamped to the inner wall of the tilting pot cavity (2) and are detachably connected to the tilting pot cavity (2).

4. The bowl flipping and demagnetizing device according to claim 1, characterized in that, The grid (32) is a square grid (32) and is arranged by regularly distributed square permanent magnetic units, gaps are arranged between the square permanent magnetic units, and the grid (32) is fixed to the bottom of the tilting pot cavity (2).

5. The tilting pot demagnetizer of claim 2, wherein, The motor (211) comprises a variable frequency motor (211) and is adapted to adjust the tumbling speed, and the tilting arm (213) is connected to the tilting pot cavity (2) through a bearing.

6. The pot turnover demagnetizing device according to claim 1, characterized by The tilting pot cavity (2) is provided with an inlet (4) and an outlet (5), the outlet (5) is located at the bottom of the tilting pot cavity (2), and the inlet (4) is provided with a return line, and the return line is adapted to transport the tilting pot to the tilting pot cavity (2).

7. The bowl flipping and demagnetizing device according to claim 6, characterized in that The return line comprises a conveyor belt and a guide device, the conveyor belt is used to transport the tilting pot, and the guide device is adapted to ensure that the tilting pot is stable during transportation and accurately aligned with the inlet (4).

8. The pot turnover demagnetization device according to claim 1, characterized by The tilting pot shell is further provided with an observation window, and the observation window is adapted to observe the inside of the tilting pot cavity (2).

9. The pot turnover demagnetization device according to claim 1, characterized by The inner surface of the tilting pot cavity (2) is provided with a wear-resistant layer.

10. The pot turnover demagnetizing device according to claim 8, characterized by The surface of the permanent magnetic rod (31) is provided with a wear-resistant layer.

Images