Automatic pickling device

Abstract

The utility model relates to the technical field of graphene acid pickling, and discloses an automatic acid pickling device which comprises a liquid preparation mechanism used for preparing and storing acid pickling liquid; the pickling mechanism comprises a liquid inlet pipe, the liquid inlet pipe is communicated with the liquid preparation mechanism, a grid structure for placing a graphene chip is arranged on one side of the liquid inlet pipe along the flowing direction of the pickling solution, a liquid outlet pipe is arranged on one side of the grid structure along the flowing direction of the pickling solution, and the liquid outlet pipe is communicated with the liquid inlet pipe. And the liquid inlet pipe and the grid structure are communicated with the liquid outlet pipe. The graphene chip pickling device has the technical effect of protecting the graphene chip in the pickling process so as to reduce the risk that the graphene chip is damaged.

Description

Technical Field

[0001] This utility model belongs to the field of graphene pickling technology, specifically relating to an automatic pickling device. Background Technology

[0002] Acid washing is typically required during the production of graphene chips to activate their surface. Acid washing involves using an acidic solution to clean the graphene chip, removing impurities and oxides from its surface. Acid washing ensures the purity of the graphene chip, allowing it to fully utilize its high specific surface area, high drug loading capacity, and high adsorption capacity.

[0003] In related technologies, the acid washing process of graphene chips usually involves manually using tweezers to pick up the graphene chip and immersing it in the acid washing solution. After soaking for a certain period of time, the characteristic functional groups on the surface of the graphene chip increase, thereby achieving activation and cleaning.

[0004] However, because graphene chips are relatively thin and brittle, there is a risk of damage to the graphene chips when they are manually handled with tweezers and immersed in an acid pickling solution. Utility Model Content

[0005] To address the shortcomings of the existing technology, this invention provides an automatic pickling device. The graphene chip is placed in a grid structure, the solution dispensing mechanism provides the pickling solution, and the pickling mechanism pickles the graphene chip. This improves upon the problem of the graphene chip being easily damaged when manually handled.

[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0007] This utility model provides an automatic pickling device, including a liquid dispensing mechanism for dispensing and storing pickling solution; and a pickling mechanism including an inlet pipe connected to the liquid dispensing mechanism. A grid structure for placing graphene chips is provided on one side of the inlet pipe along the flow direction of the pickling solution, and an outlet pipe is provided on one side of the grid structure along the flow direction of the pickling solution. The inlet pipe, the grid structure, and the outlet pipe are connected.

[0008] In some implementations, the inlet pipe is a tapered pipe, and the open end of the inlet pipe is connected to the mesh structure.

[0009] In some implementations, the outlet pipe is a tapered pipe, and the open end of the outlet pipe is connected to the mesh structure.

[0010] In some implementations, the mesh structure includes a frame, and the frame is provided with mesh plates at both the connection points with the inlet pipe and the connection points with the outlet pipe.

[0011] In some implementations, the frame includes a frame body with an opening for inserting or removing the graphene chip, and a cover plate is provided at the opening of the frame body, the cover plate being detachably connected to the frame body.

[0012] In some implementations, the frame has a snap-fit ​​groove at the opening, and the cover plate snaps into the frame at the snap-fit ​​groove, with the cover plate either inserted into or pulled out of the snap-fit ​​groove.

[0013] In some implementations, the solution preparation mechanism includes a storage tank for storing the pickling solution; a mixing tank for circulating and mixing the pickling solution, the mixing tank being connected to the inlet pipe, and a pump for drawing the pickling solution into the mixing tank; and a delivery pipe connected to the storage tank and the mixing tank respectively, the pickling solution flowing from the storage tank into the mixing tank via the delivery pipe, the delivery pipe being equipped with a delivery valve.

[0014] In some implementations, a circulation tank is provided between the outlet pipe and the mixing tank. The circulation tank is connected to both the outlet pipe and the mixing tank. The circulation tank is equipped with a circulation valve and a circulation pump for drawing the pickling solution into the circulation pipe.

[0015] In some implementations, the liquid preparation mechanism further includes a waste liquid tank for collecting waste liquid; and a waste liquid pipe connected to the waste liquid tank and the circulation tank respectively. The waste liquid pipe is equipped with a waste liquid valve, and the circulation pump draws waste liquid from the circulation tank through the waste liquid pipe to the waste liquid tank.

[0016] In some implementations, the pickling mechanism further includes a temperature control module for controlling the temperature of the pickling solution, the temperature control module being disposed on the grid structure.

[0017] In summary, this utility model has at least the following advantages:

[0018] The automatic pickling device provided by this utility model places the graphene chip to be pickled in a grid structure. The pickling solution is prepared and stored in a dispensing mechanism. During pickling, the pickling solution stored in the dispensing mechanism flows into the inlet pipe, and then flows into the grid structure. The pickling solution washes over and immerses the graphene chip. The grid structure protects the graphene chip, reducing the risk of damage. The pickling solution then flows out of the pickling mechanism through the outlet pipe. Compared with the traditional method of manually picking graphene chips with tweezers, the method of rinsing the graphene chip in the grid structure with pickling solution helps to solve the problem of easy damage to graphene chips during the pickling process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic pickling device according to a specific embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the grid structure in a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the framework of a specific embodiment of the present utility model.

[0022] Figure 4 This is a partial structural schematic diagram of the pickling mechanism according to a specific embodiment of the present invention.

[0023] Figure 5 This is a partial structural schematic diagram of the liquid dispensing mechanism according to a specific embodiment of the present invention.

[0024] Marked in the image:

[0025] 1. Liquid preparation mechanism; 11. Storage tank; 12. Liquid preparation tank; 121. Flow pipe; 13. Delivery pipe; 14. Circulation tank; 141. Circulation pipe; 15. Waste liquid tank; 151. Waste liquid pipe; 16. Controller;

[0026] 2. Pickling mechanism; 21. Liquid inlet pipe; 22. Grid structure; 221. Frame; 2211. Frame body; 2212. Opening; 2213. Snap-fit ​​groove; 2214. Cover plate; 222. Grid plate; 223. Fitting; 23. Liquid outlet pipe; 3. Temperature control module. Detailed Implementation

[0027] 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. The described embodiments are some, but not all, of the embodiments of this utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Please see the appendix Figure 1The automatic pickling device of this utility model includes a liquid dispensing mechanism 1 and a pickling mechanism 2. The object to be pickled, such as a graphene chip, is pickled in the pickling mechanism 2, which can replace the traditional manual pickling method of using tweezers to pick up the graphene chip and immerse it in the pickling solution, thereby reducing the risk of graphene chip breakage.

[0031] The dispensing mechanism 1 is used to prepare and store pickling solution, and the pickling mechanism 2 includes an inlet pipe 21. The inlet pipe 21 is connected to the dispensing mechanism 1 at the beginning of the flow direction of the pickling solution, so that the pickling solution prepared and stored in the dispensing mechanism 1 can flow into the inlet pipe 21 to realize the circulation of pickling solution.

[0032] The inlet pipe 21 is provided with a grid structure 22 for placing graphene chips at the end of the pickling solution in the flow direction. The grid structure 22 is connected to the inlet pipe 21. When the graphene chip is placed in the grid structure 22, the pickling solution flowing in the inlet pipe 21 washes the graphene chip. The graphene chip is in the shape of a thin sheet. The grid structure 22 can fix the fragile and small graphene chip to reduce the risk of damage to the graphene chip. At the same time, the grid structure 22 ensures that the graphene chip is in full contact with the pickling solution, thereby improving the pickling effect.

[0033] The mesh structure 22 is provided with an outlet pipe 23 at one end along the flow direction of the pickling solution. The pickling solution that flows through the mesh structure 22 is discharged from the pickling mechanism 2 through the outlet pipe 23.

[0034] During the pickling process, the solution preparation mechanism 1 introduces pickling solution into the inlet pipe 21. The pickling solution flows sequentially through the inlet pipe 21, the grid structure 22, and the outlet pipe 23. The pickling solution rinses the graphene chip at the grid structure 22, activating the surface of the graphene chip. The operator simply places the graphene chip into the grid structure 22, and the pickling solution provided by the solution preparation mechanism 1 is sufficient for pickling. This operation is convenient, eliminating the need for manual tweezers to hold the graphene chip while immersing it in the pickling solution and continuously stirring the solution for thorough pickling. This effectively solves the problem of graphene chip damage caused by improper handling during manual handling.

[0035] Example 2:

[0036] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the pickling mechanism 2 of this utility model. Please refer to [link / reference]. Figures 2-4 .

[0037] Please see Figure 2In this embodiment, the inlet pipe 21 is a tapered pipe. Specifically, the open end of the inlet pipe 21 is connected to the mesh structure 22, and the narrow end is connected to the dispensing mechanism 1. In a preferred embodiment, the outlet pipe 23 is also a tapered pipe. Specifically, the open end of the outlet pipe 23 is connected to the mesh structure 22. After the pickling solution flows out of the dispensing mechanism 1, it flows sequentially through the narrow end of the inlet pipe 21, the open end of the inlet pipe 21, the mesh structure 22, the open end of the outlet pipe 23, and the narrow end of the outlet pipe 23. Specifically, the pickling solution flow channel formed between the inlet pipe 21, the mesh structure 22, and the outlet pipe 23 can be a Laval nozzle structure. Graphene chips are hydrophobic, and the mesh and surface microstructures on graphene chips are difficult to be fully acid-washed, which leads to insufficient activation of graphene chips. By vertically rinsing the graphene chip with acid solution in the acid washing mechanism 2, and by increasing the impact force of liquid flow at the mesh structure 22 through the inlet pipe 21 and outlet pipe 23, it is beneficial for the graphene chip to fully contact the acid washing solution and improve the surface activation effect.

[0038] In a preferred embodiment, the mesh structure 22 includes a frame 221. Mesh plates 222 are provided on both the side of the frame 221 closest to the inlet pipe 21 and the side closest to the outlet pipe 23. The frame 221 is connected to the inlet pipe 21 and the outlet pipe 23 at the mesh plates 222, respectively. Before acid washing, the graphene chip is inserted into the frame 221. The mesh plates 222, while allowing the acid washing solution to pass through, also fix and protect the graphene chip.

[0039] As shown in some specific embodiments, the mesh structure 22 further includes a connecting frame disposed between the inlet pipe 21 and the outlet pipe 23. The frame 221 can be inserted into the connecting frame to communicate with the inlet pipe 21 and the outlet pipe 23 respectively. The frame 211 and the connecting frame are detachably connected. The connecting frame and the frame 211 are adapted to each other, and during pickling, the frame 211 is completely embedded in the connecting frame.

[0040] As shown in some specific embodiments, the frame 221 includes a frame body 2211 with a through-hole for inserting or removing the graphene chip. A cover plate 2214 is provided at the opening 2212 of the frame body 2211, and the cover plate 2214 is detachably connected to the frame body 2211. Specifically, the frame body 2211 has a snap-fit ​​groove 2213 at the opening 2212. This snap-fit ​​groove 2213 is specifically an elongated groove. The edge of the cover plate 2214 can be inserted into or removed from the snap-fit ​​groove 2213, and the cover plate 2214 snaps into the frame body 2211. Before acid washing, the cover plate 2214 is removed from the snap-fit ​​groove 2213. The operator inserts the graphene chip to be acid washed into the frame body 2211 through the opening 2212, and then inserts the cover plate 2214 into the snap-fit ​​groove 2213, covering the opening 2212. This operation is convenient. Furthermore, a handle may be provided on the cover plate 2214 to facilitate the installation and removal of the cover plate 2214.

[0041] Please see Figure 3 As shown in some specific embodiments, a fitting 223 is provided on the side of the frame 2211 away from the cover plate 2214. Specifically, a bottom hole is provided through the frame 2211, and the fitting 223 can be a sealing plug embedded in the bottom hole. After the pickling operation is stopped, the fitting 223 is removed, and the frame 2211 can drain the residual pickling liquid through the bottom hole to facilitate the cleaning of the frame 221.

[0042] Please see Figure 4 In a preferred embodiment, a temperature control module 3 for controlling the pickling temperature of the graphene chip is provided on the connecting frame. The temperature control module 3 includes a temperature sensor for detecting the reaction temperature. During the pickling process, the graphene chip generates and dissipates a large amount of heat, causing temperature changes during the pickling reaction. This leads to reduced stability of the reaction conditions for the graphene chip and makes it difficult to ensure consistent pickling results. The temperature control module 3 detects whether the reaction temperature at the frame 221 is within a specified temperature or a specified temperature range, and then adjusts the temperature of the pickling mechanism 2 to achieve a constant temperature reaction for the graphene chip, ensuring reaction stability. It is understood that the method by which the temperature control module 3 detects and adjusts the temperature is known to those skilled in the art and is achievable, and will not be described in detail in this embodiment.

[0043] Example 3:

[0044] The difference between this embodiment and the above embodiments is that this embodiment further optimizes the structure of the liquid dispensing mechanism 1 of this utility model. Please refer to [link to relevant documentation]. Figure 1 and Figure 5 .

[0045] Please see Figure 5 The liquid preparation mechanism 1 in this embodiment includes a liquid storage tank 11 for storing pickling solution. As shown in some specific embodiments, several liquid storage tanks 11 are provided, which can be used to store different pickling solutions, which is beneficial for the preparation of pickling solution.

[0046] A mixing tank 12 for circulating and mixing pickling solution is provided on one side of the storage tank 11. The mixing tank 12 is connected to the inlet pipe 21. In some specific embodiments shown, a flow pipe 121 is provided between the mixing tank 12 and the inlet pipe 21. Specifically, one end of the flow pipe 121 along the flow direction of the pickling solution is connected to the mixing tank 12, and the other end is connected to the narrow end of the inlet pipe 21. A pump is provided on the mixing tank 12. The pump draws pickling solution to pump the pickling solution in the storage tank 11 to the mixing tank 12 for mixing.

[0047] A delivery pipe 13 is provided between the mixing tank 12 and the storage tank 11. One end of the delivery pipe 13 is connected to the storage tank 11 along the flow direction of the pickling solution, and the other end is connected to the mixing tank 12. A delivery valve is provided on the delivery pipe 13. By controlling the opening and closing of the delivery valve, the flow rate of pickling solution into the mixing tank 12 from the storage tank 11 can be controlled and adjusted, so that the pickling solution can be automatically mixed and the operation is convenient.

[0048] In a preferred embodiment, a circulation tank 14 is provided between the outlet pipe 23 and the mixing tank 12. As shown in some specific embodiments, one end of the circulation tank 14 along the flow direction of the pickling liquid is connected to the outlet pipe 23, and the other end is connected to the mixing tank 12. Specifically, a circulation pipe 141 is provided between the circulation tank 14 and the outlet pipe 23. The circulation tank 14 is connected to the outlet pipe 23 through the circulation pipe 141. That is, one end of the circulation pipe 141 along the flow direction of the pickling liquid is connected to the circulation tank 14, and the other end is connected to the outlet pipe 23.

[0049] The circulation pipe 141 is equipped with a circulation valve and a circulation pump for drawing pickling solution into the circulation pipe 141. The configuration of the circulation tank 14, circulation pipe 141, circulation valve and circulation pump can realize the recycling of pickling solution.

[0050] Before pickling, the infusion valve is opened, and the pump delivers the pickling solution in the storage tank 11 to the mixing tank 12 via the infusion pipe 13. The pickling solution is then prepared in the mixing tank 12. At this time, the infusion valve and the pump are closed, and the circulation valve and the circulation pump are opened. The pickling solution in the mixing tank 12 flows into the inlet pipe 21 through the circulation tank 14 and the flow pipe 121, and then flows through the grid structure 22. The pickling solution washes the graphene chip at the grid structure 22. After rinsing the graphene chip, the pickling solution flows into the circulation pipe 141 through the outlet pipe 23, and then flows back to the circulation tank 14 through the circulation pipe 141. It can then re-enter the pickling mechanism 2 through the flow pipe 121. By adjusting the force parameters of the circulating pump, the graphene chip is vertically and circulatedly rinsed by the pickling solution, which reduces the generation of bubbles during the pickling process and ensures that the pickling solution is in full contact with the graphene chip. The central pore structure of the graphene chip can contact the pickling solution, thereby ensuring that the graphene chip is fully pickled and activated.

[0051] In a preferred embodiment, the liquid preparation mechanism 1 further includes a waste liquid tank 15 for collecting waste liquid. A waste liquid pipe 151 is provided between the waste liquid tank 15 and the circulation tank 14. Specifically, one end of the waste liquid pipe 151 along the flow direction of the pickling liquid is connected to the waste liquid tank 15, and the other end is connected to the circulation tank 14. A waste liquid valve is provided on the waste liquid pipe 151, and a circulation pump is connected to the waste liquid pipe 151. When the waste liquid valve is opened, the circulation pump draws the waste liquid in the circulation tank 14 into the waste liquid tank 15 through the waste liquid pipe 151.

[0052] After the pickling solution has been recycled a certain number of times, the circulation valve is closed and the waste liquid valve is opened. The circulation pump then pumps the waste liquid from each pipeline sequentially through the circulation tank 14 and the waste liquid pipe 151 to the waste liquid tank 15, where the waste liquid can be collected uniformly. In some specific embodiments, during the waste liquid pumping process, the storage tank 11 can hold deionized water. The delivery valve and the pumping pump are opened to pump the deionized water to the mixing tank 12 and the circulation tank 14. The delivery valve and the pumping pump are then closed, and the circulation valve and the circulation pump are opened. The deionized water can be used to clean the circulation pipelines, etc., and circulation can be stopped after cleaning.

[0053] Please combine Figure 1 In a preferred embodiment, the solution preparation mechanism 1 includes a controller 16, which is electrically connected to an infusion valve, a circulation valve, a waste valve, a suction pump, and a circulation pump to regulate and control the flow rate and direction of the pickling solution. By adjusting specific time parameters and pickling solution dosage through the controller 16, precise timing and quantitative reactions can be achieved, ensuring the consistency of the pickling results for the graphene chip. Simultaneously, the controller 16 can achieve microfluidics by controlling the solution preparation mechanism 1, which is beneficial for saving pickling solution usage compared to the traditional method of immersing the graphene chip in a large-volume container. It is understood that the method by which the controller 16 controls the time parameters and pickling solution dosage is known to those skilled in the art and is achievable, and will not be described in detail in this embodiment.

[0054] 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 part; they can refer to a mechanical connection or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. An automatic pickling device, characterized in that, include Solution preparation unit (1), for preparing and storing pickling solution; and The pickling mechanism (2) includes an inlet pipe (21) connected to the dispensing mechanism (1). The inlet pipe (21) has a grid structure (22) for placing graphene chips on one side along the flow direction of the pickling liquid. The grid structure (22) has an outlet pipe (23) on one side along the flow direction of the pickling liquid. The inlet pipe (21), the grid structure (22) and the outlet pipe (23) are connected.

2. The automatic pickling device according to claim 1, characterized in that, The liquid inlet pipe (21) is a tapered pipe, and the open end of the liquid inlet pipe (21) is connected to the mesh structure (22).

3. The automatic pickling apparatus according to claim 1 or 2, characterized in that, The liquid outlet pipe (23) is a tapered pipe, and the open end of the liquid outlet pipe (23) is connected to the mesh structure (22).

4. The automatic pickling device according to claim 1, characterized in that, The grid structure (22) includes a frame (221), and the frame (221) is provided with a grid plate (222) at the connection with the liquid inlet pipe (21) and at the connection with the liquid outlet pipe (23).

5. The automatic pickling apparatus according to claim 4, characterized in that, The frame (221) includes a frame body (2211), which has an opening (2212) for inserting or removing the graphene chip. A cover plate (2214) is provided on the frame body (2211) at the opening (2212), and the cover plate (2214) is detachably connected to the frame body (2211).

6. The automatic pickling apparatus according to claim 5, characterized in that, The frame (2211) has a snap-fit ​​groove (2213) at the opening (2212), and the cover plate (2214) snaps into the frame (2211) at the snap-fit ​​groove (2213). The cover plate (2214) is inserted into the snap-fit ​​groove (2213) or pulled out from the snap-fit ​​groove (2213).

7. The automatic pickling apparatus according to claim 1, characterized in that, The liquid preparation mechanism (1) includes Storage tank (11) for storing the pickling solution; A solution preparation tank (12) is used for circulating and mixing the pickling solution. The solution preparation tank (12) is connected to the inlet pipe (21). A pump is provided on the solution preparation tank (12) for drawing the pickling solution into the solution preparation tank (12). as well as The infusion pipe (13) is connected to the storage tank (11) and the mixing tank (12) respectively. The pickling solution flows from the storage tank (11) into the mixing tank (12) through the infusion pipe (13). The infusion pipe (13) is equipped with an infusion valve.

8. The automatic pickling apparatus according to claim 7, characterized in that, A circulation tank (14) is provided between the outlet pipe (23) and the mixing tank (12). The circulation tank (14) is connected to the outlet pipe (23) and the mixing tank (12) respectively. A circulation valve and a circulation pump for drawing the pickling liquid into the circulation pipe are provided on the circulation tank (14).

9. The automatic pickling apparatus according to claim 8, characterized in that, The liquid preparation mechanism (1) also includes Waste liquid tank (15), used for collecting waste liquid; and Waste liquid pipe (151) is connected to the waste liquid pool (15) and the circulation pool (14) respectively. Waste liquid valve is provided on the waste liquid pipe (151). The circulation pump draws the waste liquid in the circulation pool (14) through the waste liquid pipe (151) to the waste liquid pool (15).

10. The automatic pickling apparatus according to claim 1, characterized in that, The pickling mechanism (2) further includes a temperature control module (3) for controlling the temperature of the pickling solution, and the temperature control module (3) is disposed on the grid structure (22).

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