Constant-pressure blanking device for graphene slurry
By designing a constant pressure feeding device for graphene slurry, and utilizing components such as the hopper cavity, ball valve, and observation window, stable and controllable slurry discharge was achieved, solving the problems of low efficiency and air bubbles in the existing technology, and improving the efficiency and quality of the coating process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKE YUEDA SHANGHAI MATERIAL TECH CO LTD
- Filing Date
- 2025-02-20
- Publication Date
- 2026-05-01
AI Technical Summary
The existing graphene slurry feeding method results in low operating efficiency, unstable discharge pressure and flow rate, and easy introduction of air bubbles, which affects the uniformity of coating thickness.
A constant pressure feeding device for graphene slurry is designed, which adopts a hopper cavity that is larger at the top and smaller at the bottom, combined with a transparent top cover, ball valve, pressure gauge and observation window. By controlling the air pressure and the inclined surface design, the stable and controllable discharge of slurry can be achieved and the generation of air bubbles can be prevented.
It achieves stable slurry level, controllable discharge pressure and flow rate, avoids bubble generation, improves the efficiency and yield of the coating process, and is easy to operate.
Smart Images

Figure CN224184967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a feeding device, specifically a graphene slurry constant pressure feeding device that provides stable slurry level, stable and controllable discharge pressure and flow rate, and does not introduce air bubbles during the process. It is easy to operate and maintain, and improves the efficiency and yield of subsequent coating processes. Background Technology
[0002] The graphene slurry coating process involves manually adding and storing the slurry in a trough, which is then carried by the coating substrate below the trough and flows over the bottom of the doctor blade to achieve a wet film coating of controllable thickness. Current trough feeding methods involve directly pouring the slurry into the trough, allowing it to flow freely downwards. This process suffers from low operational efficiency, introduces air bubbles during pouring, and causes significant changes in slurry height before and after pouring, leading to unstable discharge pressure and flow rate, which affects the uniformity of the coating thickness. Utility Model Content
[0003] To address the aforementioned issues, the main objective of this invention is to provide a graphene slurry constant pressure feeding device that ensures stable slurry level, stable and controllable discharge pressure and flow rate, prevents the introduction of air bubbles during the process, simplifies operation and maintenance, and improves the efficiency and yield of subsequent coating processes.
[0004] This utility model solves the above-mentioned technical problems through the following technical solution: a graphene slurry constant pressure feeding device, the graphene slurry constant pressure feeding device comprising: a hopper cavity with a larger upper part and a smaller lower part, a top cover plate provided on the top of the hopper cavity, a pressure gauge and a ball valve installed on the top cover plate, the top cover plate being fixedly and sealed on the hopper cavity, an inlet provided on the side of the hopper cavity, an outlet provided on the bottom of the hopper cavity, an outlet flange provided on the outlet, a viewing window mounting plate provided on the side of the hopper cavity, an observation window installed on the viewing window mounting plate, the surface in contact between the hopper cavity and the top cover plate being the top flange, the top flange being integrally formed or welded to the hopper cavity, the outlet flange being integrally formed or welded to the hopper cavity, and an inclined surface for easy flow of graphene slurry provided at the part in contact between the inlet and the side of the hopper cavity.
[0005] In a specific embodiment of this utility model, the top cover is made of transparent acrylic material.
[0006] In a specific embodiment of this utility model, the observation window is a transparent observation window.
[0007] In a specific embodiment of this utility model, the feed inlet is fixed to the hopper cavity by welding or integrally formed with the hopper cavity.
[0008] In a specific embodiment of this utility model, the upper flange is fixed to the hopper cavity by welding or integrally formed with the hopper cavity.
[0009] In a specific embodiment of this utility model, the observation window includes multiple locations, all of which are fixed to the hopper cavity by bolt connection.
[0010] In a specific embodiment of this utility model, the area of the observation window is 1 / 3 to 1 / 5 of the area of the side on which it is installed.
[0011] In a specific embodiment of this utility model, the upper cover plate is bolted to the upper flange.
[0012] In a specific embodiment of this utility model, the observation window is an observation window made of transparent acrylic material.
[0013] In a specific embodiment of this utility model, a sealing ring is provided between the viewing window mounting plate and the observation window.
[0014] The significant advantages of this invention are as follows: Compared with common technologies, the graphene slurry constant pressure feeding device provided by this invention has the following advantages: This invention improves upon the shortcomings of existing graphene slurry feeding methods, such as excessive air bubbles, unstable pressure and flow rate, and low operating efficiency. A stable and controllable air pressure is applied within the device cavity, ensuring that the slurry within the cavity experiences a stable and controllable discharge pressure and flow rate, achieving a stable discharge effect. The graphene slurry is pumped to the inlet and flows obliquely along the inner wall of the hopper cavity into the hopper cavity, preventing the generation of air bubbles. Attached Figure Description
[0015] Figure 1 This is a line drawing illustrating the overall structure of this utility model.
[0016] Figure 2 This is the left view of the present invention.
[0017] Figure 3 for Figure 2 LL sectional view.
[0018] Figure 4 This is a rendering of the overall structure of this utility model.
[0019] The following are the names corresponding to the reference numerals in this utility model:
[0020] 1. Ball valve; 2. Pressure gauge; 3. Top cover plate; 4. Observation window; 5. Discharge port flange; 6. Hopper cavity; 7. Inlet; 8. Top flange; 9. Bolt; 10. Discharge port; 701. Inclined surface. Detailed Implementation
[0021] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.
[0022] Figure 1This is a line drawing illustrating the overall structure of this utility model. Figure 2 This is the left view of the present invention. Figure 3 for Figure 2 LL sectional view, such as Figure 1-3 As shown, this utility model proposes a constant pressure feeding device for graphene slurry. The device includes: a hopper cavity 6, wider at the top and narrower at the bottom; a top cover plate 3 is provided on the top of the hopper cavity 6; a pressure gauge 2 and a ball valve 1 are installed on the top cover plate 3; the top cover plate 3 is fixedly and sealingly installed on the hopper cavity 6; an inlet 7 is provided on the side of the hopper cavity 6; an outlet 10 is provided at the bottom of the hopper cavity 6; an outlet flange 5 is provided at the outlet 10; and a viewing window is provided on the side of the hopper cavity 6. The mounting plate has an observation window 4. The surface where the hopper cavity 6 and the upper cover plate 3 contact is the upper flange 8, which is integrally formed or welded to the hopper cavity 6. The discharge port flange 5 is integrally formed or welded to the hopper cavity 6. The part where the inlet 7 contacts the side of the hopper cavity 6 is provided with an inclined surface 701 to facilitate the flow of graphene slurry. The graphene slurry is transported by the pump to the inlet and flows obliquely into the hopper cavity along the inner wall of the hopper cavity to prevent the generation of air bubbles.
[0023] In the specific implementation process, the top cover plate in this utility model is made of transparent acrylic material.
[0024] Observation window 4 is a transparent observation window, which can be made of transparent acrylic material or other transparent materials.
[0025] The area of the observation window 4 is 1 / 3 to 1 / 5 of the area of the side on which it is installed. The above parameter values can be replaced with other values or ranges according to specific requirements.
[0026] In the specific implementation process, the upper cover plate 3 of this utility model is installed on the upper flange 8 with bolts 9.
[0027] The ball valve 1 in this invention connects and disconnects the supply of compressed air; the pressure gauge 2 in this invention is used to detect the pressure of the gas entering the hopper; the upper cover 3 in this invention can be made of transparent acrylic material, which serves to seal the gas and allow the view of the inside of the hopper.
[0028] The observation window 4 in this invention is a structure used to observe the depth and internal condition of the slurry. The observation window 4 can be multiple in number, all fixed to the hopper cavity 6 by bolts, and a sealing ring is provided between the viewing window mounting plate and the observation window 4. Figure 1-4 It is not indicated above.
[0029] The discharge flange 5 in this invention is used for graphene slurry to enter the next process through this inlet. The hopper cavity 6 in this invention is used to store graphene slurry. The inlet 7 in this invention is used for external graphene slurry to be conveyed through a specific device and enters the hopper cavity 6 through this inlet. The upper flange 8 in this invention is a flange connecting the upper cover plate 3 and the hopper cavity 6, and is welded to the hopper cavity 6 or integrally formed with the hopper cavity 6. The inlet 7 in this invention is fixed to the hopper cavity 6 by welding or integrally formed with the hopper cavity 6.
[0030] Figure 4 This is a rendering of the overall structure of this utility model, for reference only. Figure 4 The working process of this utility model is as follows: Graphene slurry is pumped to the inlet 7 and flows obliquely into the hopper cavity 6 along the inner wall of the hopper cavity 6 (to prevent air bubbles from being generated). The volume of the graphene slurry flowing in is observed through the observation window 4. When the volume of graphene slurry can meet the requirements of the next process, the ball valve 1 is slowly opened and compressed air enters the hopper cavity 6. The reading of the pressure gauge 2 is observed. When the reading of the pressure gauge 2 reaches the specified requirement, the graphene slurry is discharged through the outlet 5 flange. The ball valve 1 is adjusted to ensure that the specified value of the pressure gauge 2 remains unchanged. The graphene slurry is stably and continuously conveyed through the outlet 5 flange at a certain speed and enters the next process.
[0031] This invention provides a bubble-free, rapid, and consistently stable graphene slurry with consistent pressure and flow rate for the next process. This invention also boasts advantages such as simple structure, low cost, and convenient operation and maintenance.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A graphene slurry constant pressure dispensing device, characterized in that: The graphene slurry constant pressure feeding device includes: a hopper cavity that is larger at the top and smaller at the bottom; a top cover plate is provided on the top of the hopper cavity; a pressure gauge and a ball valve are installed on the top cover plate; the top cover plate is fixedly and sealed on the hopper cavity; an inlet is provided on the side of the hopper cavity; an outlet is provided on the bottom of the hopper cavity; an outlet flange is provided on the outlet; a viewing window mounting plate is provided on the side of the hopper cavity; an observation window is installed on the viewing window mounting plate; the surface in contact between the hopper cavity and the top cover plate is the top flange; the top flange is integrally formed or welded to the hopper cavity; the outlet flange is integrally formed or welded to the hopper cavity; and an inclined surface is provided at the part of the inlet that contacts the side of the hopper cavity to facilitate the flow of graphene slurry.
2. The graphene slurry constant pressure dosing device of claim 1, wherein: The top cover is made of transparent acrylic material.
3. The graphene slurry constant pressure dispensing device of claim 1, wherein: The observation window is transparent.
4. The graphene slurry constant pressure feeding device according to claim 1, characterized in that: The feed inlet is fixed to the hopper cavity by welding or integrally formed with the hopper cavity.
5. The graphene slurry constant pressure dispensing device of claim 1, wherein: The upper flange is fixed to the hopper cavity by welding or integrally formed with the hopper cavity.
6. The graphene slurry constant pressure feeding device according to claim 1, characterized in that: The observation windows are in multiple locations, all of which are fixed to the hopper cavity using bolt connections.
7. The graphene slurry constant pressure feeding device according to claim 6, characterized in that: The area of the observation window is 1 / 3 to 1 / 5 of the area of the side on which it is installed.
8. The graphene slurry constant pressure dispensing device of claim 1, wherein: The top cover plate is bolted to the top flange.
9. The graphene slurry constant pressure dispensing device of claim 1, wherein: The observation window is made of transparent acrylic material.
10. The graphene slurry constant pressure feeding device according to claim 1, characterized in that: A sealing ring is installed between the viewing window mounting plate and the viewing window.