Graphite sagger for purifying negative electrode material

Abstract

The utility model belongs to the technical field of graphite saggers, and particularly relates to a negative electrode material purification graphite sagger which comprises a first side wall and a second side wall, a sealing plate opposite to the second side wall is detachably arranged at the other end of the first side wall; trays and supporting plates are arranged in the first side wall in an up-down layered mode, the supporting plates are located on the bottom layer, the adjacent supporting plates in the same layer are distributed on the front side and the rear side of the first side wall, and an exhaust channel with an upper opening is formed in the middle of the first side wall; the edge of the tray and the edge of the supporting plate extend upwards to form protruding parts. According to the utility model, cathode materials can be placed in the sagger in a layered manner for purification operation, and generated gas is discharged along a fixed path, so that a mechanism for loading the cathode materials is directly taken out after the purification operation, the influence of accumulation dead angles is avoided, and the continuous purification operation is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of graphite sagger technology, and in particular relates to a graphite sagger for purifying negative electrode materials. Background Technology

[0002] A graphite crucible is a box-shaped or boat-shaped container made primarily of high-purity graphite. Also known as a graphite square crucible or graphite boat, it is specifically used for the high-temperature sintering and purification of lithium battery anode materials (such as graphite and silicon-based composite materials) in a graphitization furnace. The heating environment below 1800℃ promotes the stabilization of the material structure and reduces the impurity content.

[0003] Currently, when purifying negative electrode materials using a sagger, the enclosed structure causes evenly spread negative electrode materials to accumulate in dead corners at the edges inside the sagger, making them difficult to remove. Furthermore, using scrapers or similar mechanisms can easily damage the sagger.

[0004] To address the aforementioned issues, this application proposes a graphite sagger for purifying negative electrode materials. Utility Model Content

[0005] The purpose of this invention is to provide a graphite crucible for purifying negative electrode materials, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a graphite sagger for purifying negative electrode materials, comprising a first sidewall and a second sidewall;

[0008] The other end of the first sidewall is detachably provided with a sealing plate opposite to the second sidewall;

[0009] A support frame is fixed on the inner side of the first sidewall. The inner sidewall is provided with trays and pallets in upper and lower layers. The pallets are located at the bottom layer. Adjacent pallets in the same layer are distributed on the front and rear sides of the first sidewall and form an exhaust channel with an upper opening in the middle.

[0010] The edges of both the tray and the pallet have upward-extending protrusions.

[0011] Preferably, the end of the tray has an upwardly extending support plate that defines the front and rear sidewalls of the tray.

[0012] Preferably, the lower end of the support frame is provided with an oblique guide edge that slopes upward from the inner wall of the first side wall toward the center of the adjacent first side wall.

[0013] Preferably, the left and right ends of the protrusion are provided with through square slots that mate with the plug rods on the inner side of the sealing plate.

[0014] Preferably, a side groove is formed between the right end of the first sidewall and the support frame, which is connected to the sealing plate.

[0015] Preferably, a plug groove is provided at the upper right end of the first sidewall, which connects to the support blocks at the front and rear of the upper end of the sealing plate.

[0016] Preferably, the support block and the groove have coaxial holes for sliding installation of the pin.

[0017] This utility model has the following beneficial effects:

[0018] This invention supports the tray by symmetrically arranging support frames inside the first side wall, thereby forming an upward exhaust channel between adjacent trays. Combined with guide edges, this promotes gas discharge. This arrangement increases the utilization rate of the space inside the crucible and enables the simultaneous storage of negative electrode materials in multiple layers.

[0019] This invention uses upward-protruding protrusions along the edges of the tray and pallet to confine the negative electrode material within a fixed area. Combined with the separate assembly of the tray and pallet with the first sidewall, the tray and pallet can be directly installed after purification, which not only facilitates the unloading of the negative electrode material and avoids the impact of dead corners, but also allows for the direct installation of another set of trays and pallets for continuous purification.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall appearance structure of the sagger of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the sagger of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal planar structure of the sagger of this utility model;

[0025] Figure 4 This is an exploded structural diagram of the sealing plate and the main body of the sagger of this utility model;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] In the picture:

[0028] 11. First sidewall; 12. Second sidewall; 13. Sealing plate; 131. Support block; 132. Plug rod; 14. Support frame; 141. Guide edge; 15. Side groove; 16. Plug groove;

[0029] 21. Pallet; 201. Protrusion; 2011. Square slot; 22. Pallet plate. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] Please see Figure 1-4 As shown, this utility model is a graphite sagger for purifying negative electrode materials, including a first sidewall 11 and a second sidewall 12.

[0033] The other end of the first sidewall 11 is detachably provided with a sealing plate 13 opposite to the second sidewall 12, which forms an open structure on the right end of the sagger after disassembly.

[0034] A support frame 14 is fixed on the inner side of the first side wall 11. The inner side wall 11 is provided with trays 21 and trays 22 in upper and lower layers. The trays 22 are located at the bottom layer. Adjacent trays 22 in the same layer are distributed on the front and rear sides of the first side wall 11 and form an exhaust channel with an upper opening in the middle. The trays 21 are located above the support frame 14. After the sealing plate 13 is removed, the trays 21 and 22 can be directly removed from the opening.

[0035] Both the tray 21 and the tray plate 22 have protrusions 201 extending upwards along their edges, and their inner sides are inclined sides facing inwards, thus opening up dead corners so that the negative electrode material inside can be directly taken out after being removed from the crucible.

[0036] Furthermore, the end of the support frame 14 extends upward with a protruding plate, which limits the front and rear side walls of the tray 21, preventing it from sliding back and forth; the left and right ends of the protrusion 201 have through square slots 2011, which are connected to the plug rods 132 inside the sealing plate 13, thereby fixing the tray 21 in the left and right lateral directions. After the tray 21 and the tray plate 22 are installed in the sagger, it is convenient for the movement and placement of the sagger.

[0037] Furthermore, the lower end of the support frame 14 is provided with an inclined guide edge 141, which is inclined upward from the inner wall of the first side wall 11 towards the center of the adjacent first side wall 11, causing the gas generated by the purification of the negative electrode material in the lower tray 21 and tray 22 to gather in the central area of ​​the sagger, and then be discharged upward in this area.

[0038] Furthermore, a side groove 15 is formed between the right end of the first sidewall 11 and the support frame 14, which is connected to the sealing plate 13. The sealing plate 13 is used to seal the opening at the right end of the sagger.

[0039] Furthermore, a groove 16 is provided on the upper right end of the first sidewall 11, which is connected to the support block 131 at the front and rear of the upper end of the sealing plate 13. The support block 131 and the groove 16 have coaxial holes for sliding installation of the pin. After the sealing plate 13 is placed inside the side groove 15, the support block 131 is connected to the groove 16, thereby aligning the holes inside the support block 131 and the groove 16, which facilitates the insertion of the pin.

[0040] It is understood that this utility model can arrange negative electrode materials in layers in the crucible for purification, and allow the generated gas to be discharged along a fixed path. After the purification operation, the mechanism containing the negative electrode material can be directly removed, avoiding the influence of dead corners and facilitating continuous purification operations.

[0041] A specific application of the operation flow of this embodiment is as follows: During use, the tray 21 and pallet 22 are placed on top of the support frame 14 and at the bottom of the first side wall 11, respectively, so that the pallets 22 are distributed in layers, and adjacent pallets 22 in the same layer form exhaust channels with openings at the top and bottom; further, the sealing plate 13 is placed inside the side groove 15, and the plug rod 132 is inserted into the square slot 2011; finally, the support block 131 is connected and fixed to the plug groove 16 by a pin; after this arrangement, during purification operations, The gas generated below is guided to the exhaust channel in the middle by the guide edge 141, so that it is discharged in a fixed area. This utilizes the space inside the sagger to increase the purification amount of negative electrode material in the same set of operations. In addition, after purification, the tray 21 and the pallet 22 can be directly removed after the sealing plate 13 is removed, thereby removing the negative electrode material from the sagger. This facilitates material unloading and makes it easy to remove the negative electrode material from the dead corner area. At this time, the sagger can be directly placed with the next set of trays 21 and pallets 22 for the next set of negative electrode material purification operations.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A negative electrode material purification graphite retort, characterized by: Including the first sidewall (11) and the second sidewall (12); The other end of the first sidewall (11) is detachably provided with a sealing plate (13) opposite to the second sidewall (12). A support frame (14) is fixed on the inner side of the first sidewall (11). The inner sidewall (11) is provided with trays (21) and pallets (22) in upper and lower layers. The pallets (22) are located at the bottom layer. Adjacent pallets (22) in the same layer are distributed on the front and rear sides of the first sidewall (11) and form an exhaust channel with an upper opening in the middle. The edges of both the tray (21) and the pallet (22) have upward protrusions (201).

2. The negative material purification graphite saggar of claim 1, wherein: A support frame (14) is fixed to the inner side of the first sidewall (11), and an extension plate extends upward from its end to define the front and rear sidewalls of the tray (21).

3. The negative material purification graphite saggar of claim 2, wherein: The lower end of the support frame (14) is provided with an oblique guide edge (141), which is inclined upward from the inner wall of the first side wall (11) towards the center of the adjacent first side wall (11).

4. The negative material purification graphite saggar of claim 1, wherein: The protrusion (201) has a through square slot (2011) at both ends, which is connected to the plug rod (132) inside the sealing plate (13).

5. The negative material purification graphite saggar of claim 2, wherein: A side groove (15) is formed between the right end of the first sidewall (11) and the support frame (14), which is connected to the sealing plate (13).

6. The negative material purification graphite saggar of claim 1, wherein: A plug groove (16) is provided on the upper right end of the first sidewall (11), which is connected to the support block (131) at the front and rear of the upper end of the sealing plate (13).

7. The negative material purification graphite saggar of claim 6, wherein: The support block (131) and the plug groove (16) have coaxial holes for sliding installation of the pin.

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