An integrally formed graphite plate powder paving device

Abstract

The application discloses a kind of integrally formed graphite pole plate powder paving equipment, including conveying unit, conveying unit includes conveyor belt, and flocculent graphite is sent to scattering unit by conveyor belt;Scattering unit includes multiple roller wheels arranged along the conveying direction, and the roller wheel is arranged in a stirring cavity, one end of the conveying belt is located at the entrance of the stirring cavity, and flocculent graphite is scattered by the stirring of multiple roller wheels in sequence while being forwarded to the scattering unit;Scattering unit includes a dispersion cavity with openings on both sides, the outlet of the stirring cavity is deep into one end opening of the dispersion cavity, and the paving cavity can sway left and right to achieve uniform dispersion of graphite powder;Mobile rack bottom is provided with moving wheel, which can move forward and backward relative to forming mold, and graphite powder falling from the opening of dispersion cavity is evenly paved in forming mold, multiple processing links are integrated together, process flow is simplified, intermediate links and material transfer frequency are reduced, the risk of quality problem in production process is reduced, and the stability and controllability of production process are improved.

Description

Technical Field

[0001] This application belongs to the field of graphite electrode manufacturing, and in particular relates to an integrally formed graphite electrode powder spreading equipment. Background Technology

[0002] Graphite plates are key components in new energy fields such as fuel cells, water electrolysis for hydrogen production, and flow batteries, and their performance directly affects the energy density, lifespan, and cost of the battery. With increasingly stringent requirements for plate porosity, conductivity, and mechanical strength, flocculent graphite has gradually become a research hotspot due to its unique microstructure (high specific surface area, low bulk density, and excellent wettability).

[0003] Flocculent graphite has a loose, cotton-like structure. A typical process for pressing flocculent graphite blanks involves pretreatment followed by molding / roll pressing. Pretreatment disperses agglomerated or entangled flocculent graphite into uniform particles, preventing localized density inconsistencies. However, current technologies generally employ step-by-step processing, such as mixing, sieving, collecting, and redispersing. This step-by-step approach is inefficient, has a lengthy process chain, and requires high equipment investment, failing to meet the demands of high-capacity, large-scale production. Therefore, existing technologies require further improvement and enhancement. Utility Model Content

[0004] This invention provides an integrated graphite electrode powder spreading device, which solves the problems of existing flocculent graphite processing and spreading equipment being numerous, having low processing efficiency, and requiring high equipment investment.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An integrated graphite electrode powder spreading device includes a conveying unit, a dispersing unit and a spreading unit, all three of which are mounted on a mobile frame.

[0007] The conveying unit includes a conveyor belt through which flocculent graphite is fed to the dispersing unit;

[0008] The dispersing unit includes multiple rollers arranged along the conveying direction. The rollers are located in an agitation chamber. One end of the conveyor belt is located at the inlet of the agitation chamber. The flocculent graphite is dispersed by the sequential agitation of the multiple rollers and simultaneously conveyed forward to the spreading unit.

[0009] The spreading unit includes a dispersion chamber with openings on both sides, the outlet of the stirring chamber is inserted into one end opening of the dispersion chamber, and the spreading chamber can be swayed left and right to achieve uniform dispersion of graphite powder.

[0010] The bottom of the mobile frame is equipped with casters that allow it to move back and forth relative to the molding die, so that the graphite powder falling from the opening of the dispersion chamber can be evenly spread in the molding die.

[0011] In a preferred implementation, the roller surface has protrusions or textures to improve the agitation of graphite.

[0012] In a preferred embodiment, the conveyor belt is disposed in the conveying chamber, which is connected to the agitation chamber, and the conveying chamber has an upper feeding port.

[0013] In a preferred embodiment, a first support is provided between the conveying chamber, the stirring chamber, and the moving frame, and a second support and a third support are provided between the dispersing chamber and the moving frame. The first support is higher than the second support and the second support is higher than the third support, and the dispersing chamber is inclined relative to the stirring chamber.

[0014] In a preferred embodiment, the second and third support seats are provided with mounting holes, and linear bearings are installed in the mounting holes. A moving rod mechanism passing through the linear bearings is provided between the opposing second support seats and between the opposing third support seats. Bearing seats are provided at both ends of the moving rod mechanism, and the dispersion cavity is connected to the bearing seats.

[0015] In a preferred embodiment, the moving rod mechanism has a frame with an oblong hole structure. Two straight rods are symmetrically connected to both sides of the frame. The inner sides of the two straight edges of the oblong hole are provided with toothed structures. A toothed gear is configured inside the oblong hole. When the toothed part of the gear meshes with the toothed structure on one side of the oblong hole, it will drive the oblong hole frame assembly to move to the left or right. When its toothed part rotates to mesh with the toothed structure on the other side of the oblong hole, the oblong hole frame assembly will move to the right or left.

[0016] In a preferred embodiment, the gear connects to a rotating shaft, the rotating shaft is rotatably mounted on a shaft seat, and the two rotating shafts are connected to the output end of a rotating motor via a synchronous belt.

[0017] In a preferred embodiment, the bearing seat is located in a groove in the movable frame, and the main unit of the rotating motor is located on the lower side of the movable frame, with its output end passing through the movable frame and entering the groove.

[0018] In a preferred implementation, the conveyor belt is driven by a first motor and a synchronous belt structure, and the rollers are driven by a second motor and a synchronous belt structure.

[0019] In a preferred embodiment, the outlet size of the agitation chamber is smaller than the inlet size, and the outlet length of the agitation chamber is smaller than the opening length of the dispersion chamber.

[0020] The above structure has the following beneficial effects:

[0021] The integrated graphite electrode powder spreading equipment integrates a conveying unit, a dispersing unit, and a spreading unit into a mobile frame. The conveying unit continuously transports flocculent graphite to the dispersing unit via a conveyor belt. Multiple rollers in the dispersing unit are arranged sequentially along the conveying direction. As the flocculent graphite passes through each roller, it is continuously agitated and dispersed, and then conveyed forward, resolving any agglomeration or entanglement. The entire process is continuous, eliminating the need for waiting between stages as in step-by-step processing, significantly shortening processing time and increasing the throughput of flocculent graphite per unit time. The dispersed graphite powder directly enters the dispersion chamber of the spreading unit. After uniform dispersion through left-right swaying, the graphite powder is quickly spread evenly in the forming mold by the movement of the mobile frame. This avoids the cumbersome process of transferring materials between different devices and multiple processing steps in traditional methods, further improving overall processing efficiency and meeting the needs of enterprises for high-capacity, large-scale production. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain this application and do not constitute an undue limitation of the present invention. In the drawings:

[0023] Figure 1 A schematic three-dimensional structural diagram of one embodiment of the integrally molded graphite electrode powder spreading device of this application is shown.

[0024] Figure 2 A schematic cross-sectional view of one embodiment of the integrally molded graphite electrode powder spreading device of this application is shown.

[0025] Figure 3 A schematic structural diagram illustrating one embodiment of the waist-shaped perforated frame of this application is shown.

[0026] Label Explanation:

[0027] 10. Conveyor belt; 11. Conveying chamber; 110. Feeding port; 12. First motor; 20. Roller; 21. Agitation chamber; 22. Second motor; 30. Dispersion chamber; 40. Moving frame; 41. First support seat; 42. Second support seat; 43. Third support seat; 44. Groove; 50. Waist-shaped frame; 500. Toothed structure; 51. Straight rod component; 510. Bearing seat; 52. Gear; 520. Rotating shaft; 521. Shaft seat; 53. Rotating motor; 530. Output shaft. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit and scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. In this utility model, unless otherwise expressly specified and limited, the first feature being "upper" or "lower" than the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0032] The present invention will now be described with reference to the accompanying drawings.

[0033] The specific solution adopted is as follows:

[0034] like Figure 1-3 As shown, this utility model provides an integrated graphite electrode powder spreading device, including a conveying unit, a dispersing unit and a spreading unit, all three of which are arranged on a mobile frame 40.

[0035] The conveying unit includes a conveyor belt 10, through which flocculent graphite is conveyed to the dispersing unit;

[0036] The dispersing unit includes multiple rollers 20 arranged along the conveying direction. The rollers 20 are located in an agitation chamber 21. One end of the conveyor belt 10 is located at the inlet of the agitation chamber 21. The flocculent graphite is dispersed by the sequential agitation of the multiple rollers 20 and simultaneously conveyed forward to the spreading unit.

[0037] The spreading unit includes a dispersion chamber 30 with openings on both sides. The outlet of the stirring chamber 21 extends into one end opening of the dispersion chamber 30. The spreading chamber can sway left and right to achieve uniform dispersion of graphite powder.

[0038] The bottom of the mobile frame 40 is equipped with casters that allow it to move back and forth relative to the molding die, so that the graphite powder falling from the opening of the dispersion chamber 30 can be evenly spread in the molding die.

[0039] The aforementioned integrated graphite electrode powder spreading equipment integrates a conveying unit, a dispersing unit, and a spreading unit into a mobile frame 40. The conveying unit continuously transports flocculent graphite to the dispersing unit via a conveyor belt 10. Multiple rollers 20 of the dispersing unit are sequentially arranged along the conveying direction. As the flocculent graphite passes through each roller 20, it is continuously agitated and dispersed, and then conveyed forward to resolve graphite clumping or entanglement. The entire process is continuous, eliminating the need for waiting between stages as in step-by-step processing, significantly shortening processing time and increasing the throughput of flocculent graphite per unit time. The dispersed graphite powder directly enters the dispersion chamber 30 of the spreading unit. After uniform dispersion by left-right shaking in the dispersion chamber 30, the graphite powder is quickly spread into the forming mold by the movement of the mobile frame 40. The integrated molding design avoids the cumbersome process of transferring materials between different devices and multiple processing steps in traditional methods, further improving overall processing efficiency and meeting the needs of enterprises for high-capacity, large-scale production.

[0040] Integrated molding equipment combines multiple processing steps, simplifying the process flow, reducing intermediate steps and material transfers, lowering the risk of quality problems during production, and improving the stability and controllability of the production process. Continuous operation and the integrated design allow for more efficient energy utilization, reducing energy consumption. Simultaneously, the simplified process flow and centralized operation reduce manpower requirements and labor costs, further improving the company's economic efficiency.

[0041] In a preferred embodiment of this application, the roller 20 has protrusions or textures on its surface to improve the agitation of graphite. Specifically, the contact between a smooth roller 20 and graphite is usually a continuous planar contact, while a roller 20 with protrusions or textures achieves multi-point contact. Each protrusion or texture can be considered an independent agitation point, simultaneously agitating the graphite during the rotation of the roller 20. This results in a more uniform force on the graphite within the agitation chamber 21, avoiding the problems of excessive or insufficient agitation in certain areas and improving the uniformity of graphite agitation. Flocculent graphite is prone to forming agglomerates during transport, and these agglomerates hinder the uniform dispersion and further processing of graphite. During agitation, the protrusions or textures on the surface of the roller 20 can exert shearing, compression, and tearing effects on the graphite agglomerates, disrupting their internal structure and gradually dispersing the agglomerated graphite particles into individual particles or smaller agglomerates, thereby improving the dispersibility and uniformity of graphite.

[0042] See Figure 1 and Figure 2 The upper feeding port 110 is located in the conveying chamber 11. Flocculent graphite can be fed into the conveyor belt 10 from the upper feeding port 110. The conveyor belt 10 runs stably in the conveying chamber 11, smoothly transporting the material to the agitation chamber 21 connected to it. This avoids the material from scattering or splashing during the feeding process, ensuring the continuity and stability of material conveying and improving production efficiency.

[0043] See Figure 1 and Figure 3 A first support base 41 is provided between the conveying chamber 11, the stirring chamber 21, and the moving frame 40. A second support base 42 and a third support base 43 are provided between the dispersing chamber 30 and the moving frame 40. The first support base 41 is higher than the second support base 42, and the second support base 42 is higher than the third support base 43. The dispersing chamber 30 is inclined relative to the stirring chamber 21. The inclined setting of the dispersing chamber 30, combined with its left and right moving and shaking function, enables the graphite powder to be more evenly dispersed and fall smoothly during the feeding process.

[0044] In a preferred embodiment of this application, the second support 42 and the third support 43 are provided with mounting holes, and linear bearings are installed in the mounting holes. A moving rod mechanism passing through the linear bearings is provided between the opposing second support 42 and between the opposing third support 43. Bearing seats 510 are provided at both ends of the moving rod mechanism, and the dispersion cavity 30 is connected to the bearing seats 510. Specifically, see... Figure 3The moving rod mechanism has a frame with an oblong hole structure. Two straight rod components 51 are symmetrically connected on both sides of the frame. Toothed structures 500 are provided on the inner sides of the two straight edges of the oblong hole. Partially toothed gears 52 are arranged inside the oblong hole. When the toothed part of the gear 52 meshes with the toothed structure 500 on one straight edge of the oblong hole, it will drive the oblong hole frame 50 assembly to move to the left or right. When its toothed part rotates to mesh with the toothed structure 500 on the other straight edge of the oblong hole, the oblong hole frame 50 assembly will move to the right or left.

[0045] Further, see Figure 3 The gear 52 is connected to the rotating shaft 520, which is rotatably mounted on the shaft seat 521. The gear 52 between the third support seat 43 and the gear 52 between the second support seat 42 are connected to the rotating shaft 520 via a synchronous belt, which is connected to the output shaft 530 of a rotating motor 53. Only one rotating motor 53 is used to achieve synchronous rotation of the two gears 52, effectively reducing the energy consumption of the equipment. In long-term operation, this energy saving can bring considerable economic benefits to the enterprise, while also meeting the environmental protection requirements of energy conservation and emission reduction.

[0046] Synchronous belt drive has an accurate transmission ratio, which can ensure that the rotating shaft 520 corresponding to the gear 52 between the third support 43 and the second support 42 rotates synchronously at the same speed and direction, thereby making the dispersion chamber 30 move smoothly left and right.

[0047] Two bearing seats 521 are located in the grooves 44 opened in the movable frame 40. The depths of the grooves 44 in the two bearing seats 521 are also different. The main unit of the rotating motor 53 is located on the lower side of the movable frame 40, and its output end passes through the movable frame 40 and enters the groove 44, which makes it easy for the dispersion cavity 30 to be tilted. If they are all set on the same plane, it is not convenient for the dispersion cavity 30 to be tilted.

[0048] In a preferred embodiment of this application, the conveyor belt 10 is driven by a first motor 12 and a synchronous belt structure, and the roller 20 is driven by a second motor 22 and a synchronous belt structure.

[0049] In a preferred embodiment of this application, the outlet size of the stirring chamber 21 is smaller than the inlet size, and the outlet length of the stirring chamber 21 is smaller than the opening length of the dispersion chamber 30.

[0050] When graphite powder enters the agitation chamber 21 through the wide inlet, it accumulates to a certain extent within the chamber due to the smaller outlet size. This accumulation requires the roller 20 to overcome greater resistance during rotation to agitate the graphite powder, thus increasing the interaction force between the roller 20 and the graphite powder. This greater force more effectively breaks up agglomerates in the graphite powder, resulting in more uniform and finer particles and improved quality. The accumulated graphite powder remains in the agitation chamber 21 for a relatively long time, allowing the roller 20 sufficient time to agitate it thoroughly. The outlet length of the agitation chamber 21 is shorter than the opening length of the dispersion chamber 30, allowing the dispersion chamber 30 to sway relative to the agitation chamber 21, resulting in a more rational design.

[0051] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0052] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A one-piece molded graphite electrode powder spreading device, characterized in that, It includes a conveying unit, a dispersing unit, and a spreading unit, all three of which are mounted on a mobile frame. The conveying unit includes a conveyor belt through which flocculent graphite is fed to the dispersing unit; The dispersing unit includes multiple rollers arranged along the conveying direction. The rollers are located in an agitation chamber. One end of the conveyor belt is located at the inlet of the agitation chamber. The flocculent graphite is dispersed by the sequential agitation of the multiple rollers and simultaneously conveyed forward to the spreading unit. The spreading unit includes a dispersion chamber with openings on both sides, the outlet of the stirring chamber is inserted into one end opening of the dispersion chamber, and the spreading chamber can be swayed left and right to achieve uniform dispersion of graphite powder. The bottom of the mobile frame is equipped with casters that allow it to move back and forth relative to the molding die, so that the graphite powder falling from the opening of the dispersion chamber can be evenly spread in the molding die.

2. The integrally molded graphite electrode powder spreading equipment according to claim 1, characterized in that, The roller surface has raised or textured surfaces to improve the agitation of graphite.

3. The integrally molded graphite electrode powder spreading equipment according to claim 1, characterized in that, The conveyor belt is located in the conveying chamber, which is connected to the agitation chamber. The conveying chamber has an upper feeding port.

4. The integrally molded graphite electrode powder spreading equipment according to claim 3, characterized in that, A first support is provided between the conveying chamber, the stirring chamber, and the moving frame. A second support and a third support are provided between the dispersing chamber and the moving frame. The first support is higher than the second support and the second support is higher than the third support. The dispersing chamber is inclined relative to the stirring chamber.

5. The integrally molded graphite electrode powder spreading equipment according to claim 4, characterized in that, The second and third support seats are provided with mounting holes, and linear bearings are installed in the mounting holes. A moving rod mechanism passing through the linear bearings is provided between the opposing second support seats and between the opposing third support seats. Bearing seats are provided at both ends of the moving rod mechanism, and the dispersion cavity is connected to the bearing seats.

6. The integrally molded graphite electrode powder spreading equipment according to claim 5, characterized in that, The moving rod mechanism has a frame with an oblong hole structure. Two straight rod components are symmetrically connected to both sides of the frame. The inner sides of the two straight edges of the oblong hole are provided with toothed structures. Partially toothed gears are arranged inside the oblong hole. When the toothed part of the gear meshes with the toothed structure on one side of the oblong hole, it will drive the oblong hole frame assembly to move to the left or right. When its toothed part rotates to mesh with the toothed structure on the other side of the oblong hole, the oblong hole frame assembly will move to the right or left.

7. The integrally molded graphite electrode powder spreading equipment according to claim 6, characterized in that, The gear is connected to a rotating shaft, which is rotatably mounted on a shaft seat. The two rotating shafts are connected to the output end of a rotating motor via a synchronous belt.

8. The integrally molded graphite electrode powder spreading equipment according to claim 7, characterized in that, The bearing seat is located in the groove of the movable frame, and the main unit of the rotating motor is located on the lower side of the movable frame, with its output end passing through the movable frame and entering the groove.

9. The integrally molded graphite electrode powder spreading equipment according to claim 1, characterized in that, The conveyor belt is driven by a first motor and a synchronous belt structure, and the rollers are driven by a second motor and a synchronous belt structure.

10. The integrally molded graphite electrode powder spreading equipment according to claim 1, characterized in that, The outlet size of the agitation chamber is smaller than the inlet size, and the outlet length of the agitation chamber is smaller than the opening length of the dispersion chamber.

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