Silicon-carbon negative electrode mixing equipment
By optimizing the feeding structure and mixing mechanism of the silicon-carbon anode mixing equipment, the problems of low mixing efficiency and uneven mixing in existing equipment have been solved, achieving efficient and uniform material mixing and improving production efficiency while reducing energy consumption and costs.
Patent Information
- Application Number
- CN202520140452.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing silicon-carbon anode material mixing equipment has a simple feeding structure, resulting in low mixing efficiency and the presence of blind spots, making it impossible to achieve high-quality mixing.
A mixing device including a mixing tank and a uniform mixing tank is designed. The bottom of the mixing tank is a discharge port with an opening and closing control structure, and the top is connected to the uniform mixing tank. The mixing tank is equipped with a mixing chamber and a uniform mixing chamber respectively. The rotating shaft is equipped with mixing blades and a distributor. The distributor is a cone-shaped structure that is narrow at the top and wide at the bottom, and the top is equipped with a smooth chamfer. The feeding conveying mechanism is used for preliminary homogenization treatment. Combined with an elastic support structure and guide grooves, the mixing uniformity is improved.
It improves the mixing uniformity and production efficiency of silicon-carbon anode materials, reduces energy consumption and production costs, and has a compact structure and wide applicability.
Smart Images
Figure CN223760926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicon-carbon anode processing technology, and in particular to a silicon-carbon anode mixing device. Background Technology
[0002] As a crucial component of lithium-ion batteries, the anode material, when used, can effectively improve the overall battery energy density. Silicon-based anodes, with their advantages of high energy density, wide availability of raw materials, and suitable discharge platform, are considered promising next-generation lithium-ion battery anode materials.
[0003] In the process of preparing silicon-carbon anodes, it is necessary to mix the materials, which requires stirring and mixing silicon and carbon materials. The existing mixing structure is mostly a mixing box, in which silicon and carbon materials are poured into the mixing box in proportion. Because this feeding method is too simple, it is easy for silicon and carbon materials to be severely separated when they enter the mixing box. Subsequent mixing by stirring the mixing shaft alone can easily create local blind spots in the inner wall area of the mixing box, making it impossible to achieve high-quality mixing. Moreover, this simple feeding method increases the mixing cycle, resulting in low mixing efficiency. Utility Model Content
[0004] This invention provides a silicon-carbon anode mixing device, which helps to solve the problem that the mixing equipment currently used in the processing of silicon-carbon anodes has a simple feeding structure, resulting in low mixing efficiency and uneven mixing due to blind spots.
[0005] This utility model is implemented as follows:
[0006] A silicon-carbon anode mixing device includes a mixing tank, with a discharge port at the bottom of the mixing tank equipped with an opening and closing control structure, and a uniform mixing tank connected to the top of the mixing tank. The mixing tank and the uniform mixing tank are respectively provided with a mixing chamber and a uniform mixing chamber. The bottom of the uniform mixing chamber is connected to the top of the mixing chamber. A rotating shaft is provided at the axial center of the mixing chamber. The top of the rotating shaft extends upward to the top of the uniform mixing tank and is connected to a rotary drive component. Several mixing blades are provided in the mixing chamber area of the rotating shaft. A distributor is provided in the uniform mixing chamber area of the rotating shaft. The distributor is a conical structure that is narrow at the top and wide at the bottom and has a smooth chamfered structure at the top. The uniform mixing tank is provided with a feed hole above the distributor, and a feeding conveying mechanism is provided above the feed hole.
[0007] Based on the above technical solution, a frame is provided on the outside of the mixing tank and the uniform mixing tank.
[0008] Based on the above technical solution, the distributor has a shell structure, and the rotating shaft passes through the distributor.
[0009] Based on the above technical solution, a longitudinally arranged elastic support structure is provided between the feeder and the rotating shaft.
[0010] Based on the above technical solution, the elastic support structure includes a movable part connected to the feeder, the movable part being sleeved on the fixed part, the upper and lower ends of the fixed part being fixedly connected to the rotating shaft, and a buffer spring being provided between the movable part and the fixed part, the extension and retraction direction of the buffer spring being parallel to the longitudinal direction.
[0011] Based on the above technical solution, the top end face of the distributor is provided with spiral guide lines.
[0012] Based on the above technical solution, the guide pattern is a flange structure.
[0013] Based on the above technical solution, the top end face of the distributor is provided with a wrapping layer made of elastic material.
[0014] Based on the above technical solution, a weighing hopper is provided at the front end of the feeding and conveying mechanism.
[0015] Compared with the prior art, the present invention has at least the following advantages:
[0016] 1. Improved mixing uniformity of silicon-carbon anode materials: By optimizing the feeding structure and mixing mechanism, preliminary homogenization of the materials before entering the stirring chamber was achieved, reducing the mixing difficulty in the subsequent stirring process. Simultaneously, the stirring action of the stirring blades further improved the mixing uniformity of the materials.
[0017] 2. Improved production efficiency: The equipment has a compact structure and stable operation, enabling efficient mixing and preparation of silicon-carbon anode materials. Compared with existing technologies, the equipment's stirring cycle is significantly shortened, resulting in a substantial increase in production efficiency.
[0018] 3. Reduced energy consumption and production costs: The equipment employs an optimized hybrid mechanism, reducing unnecessary energy consumption and wear. Simultaneously, the equipment's stability and durability are improved, lowering maintenance and production costs.
[0019] 4. Wide range of applications: The equipment of this utility model is applicable to the preparation of different types of silicon-carbon anode materials, and has high versatility and flexibility. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a silicon-carbon anode mixing device in one embodiment;
[0022] Figure 2 for Figure 1 Cross-sectional view of the connection structure between the distributor and the rotating shaft;
[0023] Figure 3 This is a schematic diagram of the elastic support structure of the distributor in one embodiment;
[0024] Figure 4 This is a schematic diagram of the guide ridge structure in one embodiment;
[0025] Figure 5 This is a partial structural cross-sectional view of the distributor in one embodiment;
[0026] Figure 6 This is a top view of the layout structure of four feed conveyor belts in one embodiment.
[0027] The diagram is labeled as follows: 100, mixing tank; 110, discharge port; 200, material distribution box; 210, feed hole; 300, rotating shaft; 310, mixing blades; 400, distributor; 410, moving part; 420, fixed part; 430, buffer spring; 440, guide groove; 450, coating layer; 460, flange; 500, rotary drive component; 600, feed conveyor belt; 610, weighing hopper; 620, feed end; 700, frame. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0032] Example 1: Combination Figure 1 and Figure 2 This embodiment discloses a silicon-carbon anode mixing device, which aims to achieve uniform mixing and efficient preparation of silicon-carbon anode materials by optimizing the feeding structure and mixing mechanism.
[0033] The silicon-carbon anode mixing equipment specifically includes a mixing tank 100, which serves as the main mixing chamber. The mixing tank 100 has a discharge port 110 at its bottom with an opening and closing control structure (discharge valve) to control the discharge of the mixed material. A homogenizing tank 200 is connected to the top of the mixing tank 100 for preliminary homogenization of the silicon-carbon anode material before it enters the mixing tank 100.
[0034] Furthermore, the mixing tank 100 and the uniform material box 200 are respectively provided with a mixing chamber and a uniform material box. The bottom of the uniform material box is connected to the top of the mixing chamber to form a continuous material flow channel. A rotating shaft 300 is provided at the axial center of the mixing chamber. The top of the rotating shaft 300 extends upward to the top of the uniform material box 200 and is connected to a rotary drive component 500. The rotary drive component 500 is specifically a geared motor and a gear transmission assembly. Several stirring blades 310 are provided in the mixing chamber area of the rotating shaft 300. The stirring blades 310 are centrally symmetrical with respect to the axial center line of the rotating shaft 300. After the stirring blades 310 rotate with the rotating shaft 300, they can stir and mix the material in the mixing chamber.
[0035] Additionally, a distributor 400 is located in the material homogenization chamber area of the rotating shaft 300, used to disperse and homogenize the material entering the homogenization chamber. The distributor 400 has a conical structure that is narrower at the top and wider at the bottom, with a smooth chamfered top. Material entering from the top falls onto the top of the distributor 400 and slides down its curved surface, which facilitates uniform dispersion of the material under the action of the distributor 400. This structural design ensures that the material has undergone preliminary homogenization before entering the mixing chamber, reducing the mixing difficulty during subsequent stirring processes.
[0036] The uniform material box 200 is located above the distributor 400 and has a feed hole 210 for receiving silicon-carbon anode material from the feeding conveyor mechanism and effectively controlling the position of the material entering the uniform material chamber.
[0037] A feeding conveyor mechanism is provided above the feed inlet 210 to stably convey materials into the uniform mixing box 200. In this embodiment, the feeding conveyor mechanism specifically adopts two feeding conveyor belts 600. The feeding conveyor belts 600 have lifting capabilities, and their front ends are equipped with weighing hoppers 610 to accurately control the amount of material entering the equipment, ensuring the accuracy and consistency of each mixing. Their rear ends are feeding ends 620 to stably control the material drop position.
[0038] A frame 700 is provided on the outside of the mixing tank 100 and the uniform material box 200 to fix and support the entire equipment, ensuring the stability and safety of the equipment during operation.
[0039] The distributor 400 has a shell structure, and the rotating shaft 300 passes through the distributor 400. The lightweight structural design allows the distributor 400 to rotate together with the rotating shaft 300, thereby achieving uniform dispersion of materials.
[0040] In the specific implementation process, the two feeding conveyor belts 600 uniformly and stably transport the threshold amount of silicon and carbon materials to the top of the uniform material box 200. The materials fall along the feeding hole 210 onto the distributor 400 and are effectively uniformized. Then they fall into the uniform material chamber for further uniformization, and then go down to the mixing chamber where the mixing blades 310 complete the core mixing. After the mixing effect is obtained, the discharge valve is opened and the material is discharged from the discharge port 110.
[0041] Example 2; Based on Example 1, combined with Figure 3 As shown, a longitudinally arranged elastic support structure is provided between the distributor 400 and the rotating shaft 300 to buffer and disperse the vibration and impact force generated by the distributor 400 during rotation, thereby improving the stability and service life of the equipment.
[0042] Furthermore, the elastic support structure includes a movable part 410 connected to the distributor 400. The movable part 410 is sleeved on the fixed part 420. The upper and lower ends of the fixed part 420 are fixedly connected to the rotating shaft 300. A buffer spring 430 is provided between the movable part 410 and the fixed part 420. The extension and retraction direction of the buffer spring 430 is parallel to the longitudinal direction, which can effectively absorb and disperse vibration energy.
[0043] Example 3: Based on Example 1, combined with Figure 4As shown, in this embodiment, the top end face of the distributor 400 is provided with a spiral guide pattern 440, which is a flange structure. The guide pattern 440 is used to guide the flow direction of the material inside the distributor 400, so that the material is more evenly distributed inside the distributor 400. The guide pattern 440 is designed as a flange structure, which can increase the friction between the material and the distributor 400 and prevent the material from slipping and accumulating during the flow process.
[0044] Example 4: Based on Example 1, combined with Figure 5 As shown, in this embodiment, the top end face of the distributor 400 is provided with a wrapping layer 450 made of elastic material (rubber) to further improve the material dispersion effect and wear resistance of the distributor 400. The wrapping layer 450 can increase the contact area and friction between the material and the distributor 400, making the material more evenly dispersed inside the distributor 400. At the same time, the elastic material has good wear resistance, which can extend the service life of the distributor 400.
[0045] Furthermore, the bottom of the distributor 400 is provided with a laterally inwardly extending flange 460, which helps to prevent material from being adsorbed and stuck to the bottom of the distributor 400 when it slides down the top end face of the distributor 400.
[0046] In other embodiments, to further improve the structural and operational flexibility of the equipment, such as Figure 6 As shown, four 600-degree feed conveyor belts can be used for alternating intermittent or synchronous multi-angle feeding to further improve feeding stability and uniformity.
[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A silicon-carbon anode mixing device, characterized in that, The utility model relates to a kind of material mixing and distributing device, including stirring box (100), the bottom of stirring box (100) is configured with discharge outlet (110) of open-close control structure, stirring box (100) top is connected with uniform material box (200), stirring box (100) and uniform material box (200) are respectively provided with stirring cavity and uniform material cavity inside, uniform material cavity bottom and stirring cavity top are communicated, the axial center position of stirring cavity is equipped with rotating shaft (300), rotating shaft (300) top extends to uniform material box (200) above and is connected with rotating drive part (500), rotating shaft (300) is located in stirring cavity region and is equipped with several stirring blades (310), rotating shaft (300) is located in uniform material cavity region and is equipped with distributor (400), the distributor (400) is narrow on top wide cone hopper structure and top is equipped with smooth chamfer structure, uniform material box (200) is located in distributor (400) above and is equipped with feeding hole (210), feeding hole (210) top is equipped with feeding conveying mechanism.
2. The silicon-carbon negative electrode mixing device according to claim 1, wherein The stirring box (100) and uniform material box (200) outside are provided with rack (700).
3. The silicon-carbon negative electrode mixing device according to claim 1, wherein The distributor (400) is shell structure, and the rotating shaft (300) penetrates the distributor (400).
4. The silicon-carbon negative electrode mixing device of claim 1, wherein, The elastic support structure is longitudinally arranged between the distributor (400) and the rotating shaft (300).
5. The silicon-carbon negative electrode compounding apparatus according to claim 4, wherein The elastic support structure includes a movable element (410) connected to the distributor (400), the movable element (410) is sleeved on a fixed element (420), the fixed element (420) is fixedly connected to the rotating shaft (300) at the top and bottom ends, a buffer spring (430) is arranged between the movable element (410) and the fixed element (420), and the extension direction of the buffer spring (430) is parallel to the longitudinal direction.
6. The silicon-carbon negative electrode mixing device of claim 1, wherein, The top end surface of the distributor (400) is provided with a spiral guide line (440).
7. The silicon-carbon negative electrode compounding apparatus according to claim 6, wherein The guide line (440) is a flange structure.
8. The silicon-carbon negative electrode mixing device of claim 1, wherein, The top end surface of the distributor (400) is provided with a wrapping layer (450) made of elastic material.
9. The silicon-carbon negative electrode mixing device of claim 1, wherein, The front end of the feeding conveying mechanism is provided with a weighing hopper (610).