A hard carbon cooking treatment device for sodium batteries
By using a synergistic design of spiral heat pipes, radiant heating plates, and stirring components, the problems of flow dead zones and temperature stratification in the hard carbon cooking process of sodium batteries were solved, thereby improving temperature uniformity and fluidity and enhancing the processing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JIUTAI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-19
Smart Images

Figure CN224371465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery processing technology, and in particular to a cooking equipment for hard carbon used in sodium batteries. Background Technology
[0002] In the preparation process of hard carbon, a negative electrode material for sodium batteries, the cooking process is one of the key steps. Its purpose is to remove impurities from the precursor, adjust the pore structure, and improve the electrochemical performance through a high-temperature and high-pressure environment.
[0003] However, existing technologies lack a coordinated design of stirring components and flow-guiding protrusions, which prevents the formation of internal material circulation, resulting in dead zones and temperature stratification. Furthermore, bottom heating cannot meet the requirements of hard carbon cooking for temperature uniformity, thermal efficiency, and material flowability. This is a solution with significant defects among existing single heating technologies. It needs to be optimized by combining multi-zone heating with a coordinated design of stirring and flow guidance. Therefore, a cooking equipment for hard carbon used in sodium batteries is needed. Utility Model Content
[0004] The purpose of this invention is to provide a steaming and cooking treatment device for hard carbon used in sodium batteries, which solves the problems of uneven heating of materials and lack of circulation in the internal processing in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooking device for hard carbon used in sodium batteries, comprising a cooking vessel body with an internal reaction chamber, a vessel lid, and a heating system. The heating system includes a spiral heat pipe disposed within the reaction chamber and a radiant heating plate embedded in the bottom of the reaction chamber. A rotary motor is disposed on the top of the vessel lid. A rotating rod connected to the rotary motor is disposed inside the cooking vessel body. A stirring assembly is sleeved on the outer wall of the rotating rod. The spiral heat pipe includes a heating pipe and an auxiliary heating pipe, with the auxiliary heating pipe located between the gaps of the heating pipe.
[0006] Preferably, the inner wall of the cooking vessel body is provided with flow-guiding ridges between the spiral heat pipes.
[0007] Preferably, the guide ridges are spirally distributed on the inner wall of the cooking vessel body.
[0008] Preferably, the stirring assembly is sleeved on the outer wall of the rotating rod. The stirring assembly includes a paddle stirrer, an inclined stirrer, and a turbine stirrer. The turbine stirrer is located at the bottom of the rotating rod, the paddle stirrer is located at the top of the rotating rod, and the inclined stirrer is located between the paddle stirrer and the turbine stirrer.
[0009] Preferably, at least two sets of spiral heat pipes are provided, and the spiral heat pipes are arranged in a spiral shape on the inner wall of the cooking vessel body.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] By opening the feed port on one side of the cooking vessel, the material is fed into the cooking vessel. The spiral heat pipe and radiant heating plate are activated by an external power source to ensure the heat inside the cooking vessel. Then, the rotary motor is started to drive the stirring assembly, which avoids local adhesion and heat transfer obstruction, and maintains the overall flow. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall front view of the product of this utility model;
[0013] Figure 2 This is a schematic cross-sectional view of the overall structure of the product of this utility model;
[0014] Figure 3 This is an enlarged structural diagram of section A of the product of this utility model.
[0015] In the diagram: 1. Cooking vessel body; 2. Vessel lid; 3. Spiral heat pipe; 31. Heating pipe; 32. Auxiliary heat pipe; 4. Radiant heating plate; 5. Rotary motor; 6. Rotating rod; 61. Paddle stirrer; 62. Inclined stirrer; 63. Turbine stirrer; 7. Solenoid valve; 8. Flow guide rib; 9. Legs. 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] This utility model relates to a cooking treatment device for hard carbon used in sodium batteries, such as... Figure 1-3 As shown, the digester body 1 includes a hollow digester body with a reaction chamber inside, and a lid 2 hinged above the digester body 1 to seal the digester body. The reaction chamber of the digester body 1 is equipped with a heating system, which can uniformly heat the processed material, so that the heat is evenly distributed throughout the entire digester space, avoiding local temperatures that are too high or too low, and improving the consistency of hard carbon treatment effect.
[0018] Furthermore, the heating system includes a spiral heat pipe 3 fixed to the inner wall of the cooking vessel body 1 and a radiant heating plate 4 set at the bottom of the cooking vessel body 1. The radiant heating plate 4 is welded to the bottom of the cooking vessel body 1 in a circular shape. The spiral heat pipe 3 can heat the temperature around the material to ensure that the temperature is as stable as possible to a certain extent. The radiant heating plate 4 serves to maintain the bottom temperature. A sealed, dustproof, hinged inlet and outlet port (not shown in the figure) is provided on one side of the cooking vessel body 1.
[0019] Among them, such as Figure 3 As shown, the spiral heat pipe 3 includes a heating pipe 31 and an auxiliary heating pipe 32. The heating pipe 31 is fixed in a spiral shape on the inner wall of the cooking vessel body 1. An auxiliary heating pipe 32 is also provided between the thread gaps of the spiral heat pipe 3. The auxiliary heating pipe 32 serves to assist in heating and can increase the heat transfer area. There are three sets of spiral heat pipes 3.
[0020] Furthermore, the spiral heat pipes 3 are provided with flow guiding ridges 8 on the inner wall of the cooking vessel body 1. The flow guiding ridges 8 are spiral in shape. The flow guiding ridges 8 can eliminate heating dead zones in the material flow plane, so that each area of the hard carbon material can fully contact the heat source during the cooking process, thereby improving the overall temperature uniformity and ensuring the consistency of hard carbon material processing.
[0021] Furthermore, a rotary motor 5 is fixedly connected to the top of the lid 2. The output shaft of the rotary motor 5 passes through the center of the lid 2 and the connection is sealed to reduce heat loss.
[0022] Furthermore, a rotating rod 6 is fixedly connected to the output end of the rotary motor 5 inside the main body 1 of the cooking pot, and a stirring assembly is sleeved on the outer wall of the rotating rod 6.
[0023] Among them, such as Figure 2 As shown, the mixing assembly includes a paddle mixer 61, an inclined mixer 62, and a turbine mixer 63. The paddle mixer 61 is fixed at the uppermost end of the rotating rod 6, and the turbine mixer 63 is fixed at the lowermost end of the rotating rod 6. Four sets of inclined mixers 62 are arranged between the paddle mixer 61 and the turbine mixer 63. The paddle mixer 61 can scrape the wall surface, avoid local adhesion and heat transfer obstruction, promote the circulation of bottom material, break up sedimentation and accumulation, adapt to high viscosity systems, and maintain overall flow. The turbine mixer 63 generates radial shear, promotes local turbulent mixing, drives axial circulation, balances the temperature of the upper and lower layers, adapts to medium and low viscosity systems, and improves mixing efficiency.
[0024] Furthermore, the bottom of the cooking vessel body 1 is provided with a discharge port, and an electromagnetic valve 7 is installed in the discharge port to regulate the inflow and outflow of materials. The bottom of the cooking vessel body 1 is fixedly connected with a bracket 9 to support the cooking vessel body 1 and provide space for the electromagnetic valve 7 to discharge materials.
[0025] In practical use: By opening the feed port on one side of the cooking vessel body 1, the material is fed into the cooking vessel body 1. The spiral heat pipe 3 and the radiant heating plate 4 are started by connecting an external power source to generate heat, ensuring the heat inside the cooking vessel body 1. Then, the rotary motor 5 is started to make the rotating rod 6 drive the stirring assembly to run, avoiding local adhesion and heat transfer obstruction, and maintaining the overall flow.
[0026] 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.
[0027] 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 cooking apparatus for hard carbon used in sodium batteries, comprising a cooking vessel body (1) with an internal reaction chamber, a vessel lid (2), and a heating system, characterized in that: The heating system includes a spiral heat pipe (3) installed in the reaction chamber and a radiant heating plate (4) embedded in the bottom of the reaction chamber. A rotary motor (5) is provided on the top of the lid (2). A rotating rod (6) connected to the rotary motor (5) is provided inside the main body (1) of the cooking vessel. A stirring assembly is fitted on the outer wall of the rotating rod (6). The spiral heat pipe (3) includes a heating pipe (31) and an auxiliary heating pipe (32). The auxiliary heating pipe (32) is located between the gaps of the heating pipe (31).
2. The cooking treatment equipment for hard carbon used in sodium batteries according to claim 1, characterized in that: The inner wall of the cooking vessel body (1) is provided with flow guiding ridges (8) between the spiral heat pipes (3).
3. The cooking treatment equipment for hard carbon used in sodium batteries according to claim 2, characterized in that: The guide ridges (8) are spirally distributed on the inner wall of the cooking vessel body (1).
4. The cooking treatment equipment for hard carbon used in sodium batteries according to claim 1, characterized in that: The stirring assembly is sleeved on the outer wall of the rotating rod (6). The stirring assembly includes a paddle stirrer (61), an inclined stirrer (62), and a turbine stirrer (63). The turbine stirrer (63) is located at the bottom of the rotating rod (6), the paddle stirrer (61) is located at the top of the rotating rod (6), and the inclined stirrer (62) is located between the paddle stirrer (61) and the turbine stirrer (63).
5. The cooking treatment equipment for hard carbon used in sodium batteries according to claim 1, characterized in that: The spiral heat pipe (3) is provided in at least two sets, and the spiral heat pipe (3) is arranged in a spiral shape on the inner wall of the cooking vessel body (1).