Lithium battery positive electrode precursor material production device

Abstract

The utility model relates to the technical field of lithium battery production, and particularly discloses a lithium battery positive electrode precursor material production device which comprises a tank body, two discharge ports are symmetrically arranged at the bottom of the tank body, plugging mechanisms corresponding to the two discharge ports are arranged at the bottom of the tank body in a matched mode, and a receiving groove is coaxially and correspondingly arranged at the bottom of the tank body. And a drying mechanism and a discharging mechanism are arranged in the receiving groove. The material conveying process between the stirring production operation and the drying production is effectively shortened, the drying production operation can be carried out after the stirring production, and the overall working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to a production apparatus for lithium battery cathode precursor materials. Background Technology

[0002] Lithium-ion battery cathode precursor materials refer to the raw materials used to synthesize the active materials of lithium-ion batteries' cathodes. These are typically compounds of one or more metallic elements, which are subsequently transformed into the active cathode materials during the synthesis process. For lithium-ion batteries, the cathode material is one of the key factors determining battery performance; therefore, the selection of precursor materials and their preparation processes are crucial.

[0003] The production of lithium battery cathode precursor materials includes operations such as stirring, mixing and drying. Existing production often involves multiple production units working together, but the coordination between these units is not close enough.

[0004] To address these issues, we propose a lithium battery cathode precursor material production device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a production device for lithium battery cathode precursor materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lithium battery cathode precursor material production apparatus includes a tank, with two symmetrical discharge ports at the bottom of the tank and a corresponding sealing mechanism for the two discharge ports. A receiving groove is coaxially provided at the bottom of the tank, and a drying mechanism and a discharge mechanism are provided inside the receiving groove.

[0008] Preferably, the top of the tank is fitted with a cover, the inside of the tank is fitted with a stirring paddle, and a stirring motor for controlling the rotation of the stirring paddle is fixed on the top of the cover.

[0009] Preferably, the sealing mechanism includes two first cylinders fixedly installed on the side of the tank body. The telescopic ends of the two first cylinders are arranged opposite each other and each is fixed with a movable frame. A second cylinder is vertically fixed on each of the two movable frames. A sealing block is fixed on the telescopic ends of the two second cylinders. The two sealing blocks are respectively coaxially aligned with the two discharge ports.

[0010] Preferably, the sealing block is frustum-shaped, and the outer surface of the sealing block can fit and match the inner surface of the discharge port.

[0011] Preferably, the tank body is fixed with an annular shell, the annular shell connects the bottom of the tank body and the top of the receiving groove, and the annular shell has notches corresponding to the two first cylinders.

[0012] Preferably, the drying mechanism includes several annular heating plates installed inside the receiving groove. The end face radii of the several annular heating plates are all different and are arranged in concentric circles. Each of the several annular heating plates is symmetrically provided with two slots, and heating wires are installed inside the annular heating plates.

[0013] Preferably, the discharge mechanism includes several scrapers, each scraper being disposed in the gap between two annular heating plates, and the length of the scraper being longer than the gap spacing. A rotating motor is fixed to the side of the tank, and a drive pulley is coaxially fixed to the rotating motor. A driven pulley is coaxially rotatably connected to the bottom of the tank. The drive pulley and the driven pulley are connected by a belt drive. A rotating shaft is coaxially fixed to the driven pulley. A connecting frame is fixed to the bottom of the tank, and the rotating shaft is rotatably connected to the connecting frame. The bottom of the rotating shaft is fixedly connected to several scrapers through several connecting rods. A discharge funnel is provided in the middle of the receiving trough, and the bottom of the receiving trough is installed on a support frame. A conveyor belt is provided at the bottom of the support frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, by setting a receiving groove at the bottom of the tank and installing a drying mechanism inside the receiving groove, enables direct feeding and subsequent drying operations after mixing and production. This effectively shortens the material conveying process between mixing and drying operations, achieving the effect of direct drying production after mixing, and effectively improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an isometric view of the present invention;

[0018] Figure 2 This is a front view of the tank body of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0020] Figure 4 This is a schematic diagram of the sealing block of this utility model;

[0021] Figure 5 This is a schematic diagram of the receiving groove of this utility model.

[0022] In the diagram: 1. Tank body; 2. Discharge port; 3. Receiving trough; 4. Cover; 5. Agitator; 6. Agitator motor; 7. First cylinder; 8. Moving frame; 9. Second cylinder; 10. Sealing block; 11. Annular shell; 12. Annular heating plate; 13. Groove; 14. Scraper; 15. Rotating motor; 16. Rotating shaft; 17. Connecting rod; 18. Discharge hopper; 19. Conveyor belt. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 A lithium battery cathode precursor material production apparatus includes a tank 1. Two discharge ports 2 are symmetrically arranged at the bottom of the tank 1, and a corresponding sealing mechanism is provided for each discharge port 2. The two discharge ports 2 are symmetrically arranged along the edge of the bottom of the tank 1. A receiving groove 3 is coaxially provided at the bottom of the tank 1, and a drying mechanism and a discharge mechanism are provided inside the receiving groove 3.

[0026] As a technical optimization of this utility model, a cover 4 is provided on the top of the tank 1, and a stirring paddle 5 is provided inside the tank 1. A stirring motor 6 for controlling the rotation of the stirring paddle 5 is fixed on the top of the cover 4. The tank 1 is used to add production materials, and can realize the mixing operation of multiple materials. That is, the stirring motor 6 drives the stirring paddle 5 to rotate, thereby realizing the stirring and mixing operation of the materials inside the tank 1.

[0027] For the above example, those skilled in the art should know that when implementing the above technical solution, materials can be added into the tank 1 by opening the cover 4, or by installing a feeding hopper on the cover 4 and adding materials into the tank 1 through the feeding hopper.

[0028] As a technical optimization of this utility model, the sealing mechanism includes two first cylinders 7 fixedly installed on the side of the tank body 1. The telescopic ends of the two first cylinders 7 are arranged opposite each other and each is fixed with a movable frame 8. A second cylinder 9 is vertically fixed on each of the two movable frames 8. A sealing block 10 is fixed to the telescopic end of each of the two second cylinders 9. The two sealing blocks 10 are coaxially aligned with the two discharge ports 2 respectively. The first cylinders 7 can drive the movable frames 8, along with the corresponding second cylinders 9 and sealing blocks 10, to move horizontally. The second cylinders 9 can drive the corresponding sealing blocks 10 to move.

[0029] As a technical optimization of this utility model, the sealing block 10 is frustum-shaped, and the outer surface of the sealing block 10 can fit and match the inner surface of the discharge port 2. The sealing block 10 can effectively block the corresponding discharge port 2.

[0030] As a technical optimization of this utility model, the tank body 1 is fixed with an annular shell 11, which connects the bottom of the tank body 1 and the top of the receiving groove 3. The annular shell 11 has notches corresponding to the two first cylinders 7. The annular shell 11 serves both as a connection and as a dustproof shield.

[0031] As an optimized technical solution of this utility model, the drying mechanism includes several annular heating plates 12 installed inside the receiving tank 3. The end face radii of the several annular heating plates 12 are all different and are arranged in concentric circles. Each of the several annular heating plates 12 has two symmetrical slots 13. Heating wires are installed inside the annular heating plates 12. After being stirred and mixed, the material can fall into the receiving tank 3 through two discharge ports 2. The material is located at the edge of the receiving tank 3 and away from the center of the receiving tank 3. The material is located between the several annular heating plates 12. At the same time, the heating wires inside the several annular heating plates 12 are activated to heat up, which can perform the drying operation on the material.

[0032] As a technical optimization of this utility model, the discharge mechanism includes several scrapers 14, each scraper 14 being correspondingly arranged in the gap between two annular heating plates 12, and the length of the scraper 14 being longer than the gap spacing. A rotating motor 15 is fixed on the side of the tank body 1, and a drive pulley is coaxially fixed to the rotating motor 15. A driven pulley is coaxially rotatably connected to the bottom of the tank body 1. The drive pulley and the driven pulley are connected by belt drive. A rotating shaft 16 is coaxially fixed to the driven pulley. A connecting frame is fixed to the bottom of the tank body 1. The rotating shaft 16 is rotatably connected to the connecting frame. The bottom of the rotating shaft 16 is fixedly connected to several scrapers 14 respectively through several connecting rods 17. A discharge funnel 18 is provided in the middle of the receiving trough 3. The bottom of the receiving trough 3 is installed on a support frame. A conveyor belt 19 is provided at the bottom of the support frame. The rotating motor 15 drives the active pulley to rotate, which in turn drives the driven pulley to rotate via a belt. The driven pulley ultimately drives the rotating shaft 16 to rotate. The rotating shaft 16 drives several scrapers 14 to move via several connecting rods 17. The scrapers 14 move in a circular trajectory between the corresponding two annular heating plates 12, which can scrape the material inside the gap, i.e., push the material between the two annular heating plates 12. When the material passes the corresponding slot 13, it will be pushed between the two inner annular heating plates 12. Finally, the material is pushed to the discharge funnel 18 in the middle of the receiving slot 3 and discharged through the discharge funnel 18. Containers can be placed on the conveyor belt 19 to receive the material. After the conveyor belt 19, containers filled with material can be transported to facilitate the next production step.

[0033] For the above example, those skilled in the art should know that when implementing the above technical solution, it is not limited to setting up a conveyor belt 19 for material transportation, but a trolley can also be set up at the bottom of the support frame for placing containers and subsequent material receiving operations.

[0034] For the above examples, those skilled in the art should know that when implementing the above technical solutions, the above electrical equipment is all connected to a power supply and is controlled by a control module, that is, by a programmable PLC controller.

[0035] In this invention, the working principle of the device is as follows:

[0036] The produced material is added into the tank 1, and the stirring motor 6 drives the stirring paddle 5 to rotate, thereby achieving the stirring and mixing operation of the material inside the tank 1. Subsequently, the stirred material falls into the receiving tank 3 through two discharge ports 2. The falling material is located at the edge of the receiving tank 3 and away from the center of the receiving tank 3. The material is located between several annular heating plates 12, and at the same time, the heating wires inside the several annular heating plates 12 are activated to heat up, thereby drying the material. At this point, the rotating motor 15 can be started, ultimately driving the rotating shaft 16 to rotate. The rotating shaft 16, through several connecting rods 17, drives several scrapers 14 to move. The scrapers 14 move in a circular trajectory in the gap between the corresponding two annular heating plates 12, which can scrape the material inside the gap, that is, push the material between the two annular heating plates 12, so as to facilitate better heating and drying of the material. When the material passes through the corresponding slot 13, it will be pushed between the two inner annular heating plates 12, and finally the material will be pushed to the discharge funnel 18 in the middle of the receiving slot 3, and discharged through the discharge funnel 18. Containers can be placed on the conveyor belt 19 to receive the discharged material. After the conveyor belt 19, containers filled with material can be transported to facilitate the next production step. This device can directly discharge and subsequently dry the material after mixing and production, effectively shortening the material transportation process between mixing and drying, and achieving the effect of direct drying after mixing, which effectively improves work efficiency.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lithium battery cathode precursor material production device comprising a tank body (1), characterized in that, The bottom of the tank body (1) is symmetrically provided with two discharge ports (2), and is matched with a sealing mechanism corresponding to the two discharge ports (2), and the bottom of the tank body (1) is coaxially provided with a receiving groove (3), and the receiving groove (3) is provided with a drying mechanism and a discharging mechanism.

2. The device for producing a lithium battery positive electrode precursor material according to claim 1, characterized by, The top of the tank body (1) is matched with a cover body (4), and the inside of the tank body (1) is matched with a stirring paddle (5), and the top of the cover body (4) is fixed with a stirring motor (6) for controlling the rotation of the stirring paddle (5).

3. The device for producing a lithium battery positive electrode precursor material according to claim 1, characterized in that, The sealing mechanism comprises two first air cylinders (7) fixedly installed on the side edges of the tank body (1), the telescopic ends of the two first air cylinders (7) are oppositely arranged, and each is fixedly provided with a moving frame (8), the two moving frames (8) are each vertically fixedly provided with a second air cylinder (9), the telescopic ends of the two second air cylinders (9) are each fixedly provided with a sealing block (10), and the two sealing blocks (10) are coaxially aligned with the two discharge ports (2), respectively.

4. The device for producing a lithium battery positive electrode precursor material according to claim 3, characterized by, The sealing block (10) is in the shape of a circular truncated cone, and the outer surface of the sealing block (10) can be matched with the inner surface of the discharge port (2).

5. The device for producing a lithium battery positive electrode precursor material according to claim 4, characterized by, The tank body (1) is fixedly provided with an annular shell (11) connected to the bottom of the tank body (1) and the top of the receiving groove (3), and the annular shell (11) is provided with notches corresponding to the two first air cylinders (7).

6. The device for producing a lithium battery positive electrode precursor material according to claim 1, characterized by, The drying mechanism comprises a plurality of annular heating plates (12) installed in the receiving groove (3), the end faces of the plurality of annular heating plates (12) are different in radius and are arranged in concentric circles, the plurality of annular heating plates (12) are each symmetrically provided with two notches (13), and the annular heating plates (12) are each internally provided with an electric heating wire.

7. The device for producing a lithium battery positive electrode precursor material according to claim 6, characterized by, The discharging mechanism comprises a plurality of scrapers (14), each of which is arranged in a gap between two annular heating plates (12), and the length of the scraper (14) is longer than the distance between the two annular heating plates (12), the side edge of the tank body (1) is fixedly provided with a rotating motor (15), the rotating motor (15) is coaxially fixedly provided with a driving pulley, the bottom of the tank body (1) is coaxially rotatably connected to a driven pulley, the driving pulley and the driven pulley are drivingly connected through a belt, the driven pulley is coaxially fixedly provided with a rotating shaft (16), the bottom of the tank body (1) is fixedly provided with a connecting frame, the rotating shaft (16) is rotatably connected to the connecting frame, the bottom of the rotating shaft (16) is fixedly connected to the plurality of scrapers (14) through a plurality of connecting rods (17), and the middle of the receiving groove (3) is provided with a discharging funnel (18), the bottom of the receiving groove (3) is mounted on a supporting frame, and the bottom of the supporting frame is provided with a conveying belt (19).

Images