Intercalation stripping equipment for graphene preparation

Abstract

The utility model relates to the technical field of graphene preparation, and discloses intercalation stripping equipment for graphene preparation, which comprises an ultrasonic dispersion tank, a stirring shaft rotatably penetrates through the ultrasonic dispersion tank, stirring blades are fixedly connected to two sides of the outer wall of the stirring shaft, a plurality of through holes are formed in the two stirring blades in a penetrating manner, and the through holes are communicated with the ultrasonic dispersion tank. The outer side, corresponding to the stirring shaft, of the top end of the ultrasonic dispersion tank is fixedly connected with a plurality of supporting columns, the top ends of the multiple supporting columns are fixedly connected with a circular shell and a square shell, and the square shell, the circular shell, arc-shaped fan blades, the stirring shaft, stirring blades, through holes and other structures are adopted, so that a motor does not need to be used in the working process, and energy can be reduced; and the problems that the stripping is not thorough enough and the formation of the graphene dispersion liquid is influenced due to the fact that the graphene dispersion liquid cannot be heated in the traditional use process, and the energy is wasted due to the need of using a motor in the use process are solved.

Description

Technical Field

[0001] This utility model relates to the field of graphene preparation technology, specifically to an intercalation and exfoliation device for graphene preparation. Background Technology

[0002] Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms arranged in a hexagonal honeycomb lattice with hybrid orbitals. Currently, the preparation of graphene is mostly still in the laboratory stage. The main problem with its production and preparation is the low preparation efficiency, which makes it difficult to meet the needs of large-scale production. This leads to excessively high costs for graphene. The redox graphite method has greatly improved the preparation scale, but the process is relatively complicated and not easy to prepare graphene on a large scale.

[0003] Chinese patent provides an intercalation gas-phase ultrasonic exfoliation device for graphene preparation, publication number CN215924407U, which includes an ultrasonic dispersion tank, a transmission chamber at the top of the ultrasonic dispersion tank, and a drive motor at the top of the transmission chamber.

[0004] The aforementioned equipment is powered by a drive motor, which in turn drives a transmission shaft to stir and mix the graphene-based liquid and reaction liquid inside the ultrasonic dispersion tank. Simultaneously, it drives the various parts of the cylinder assembly to generate gas, which is delivered to the interior of the ultrasonic dispersion tank through a gas guide pipe and discharged through a gas outlet pipe. The upward flow of the airflow causes the liquid inside to tumble. The mutual repulsion principle between magnets A and B is also utilized. However, the equipment cannot be heated during use, resulting in incomplete peeling and affecting the formation of the graphene dispersion. Furthermore, the need for a motor during operation leads to energy waste. Utility Model Content

[0005] The purpose of this invention is to provide an intercalation and exfoliation device for graphene preparation, in order to solve the problems of existing equipment being unable to perform heat treatment during use, resulting in incomplete exfoliation and affecting the formation of graphene dispersion, as well as the need to use a motor during use, thus leading to energy waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intercalation exfoliation device for graphene preparation, comprising an ultrasonic dispersion tank, wherein a stirring shaft is rotatably passed through the ultrasonic dispersion tank, and stirring blades are fixedly connected to both sides of the outer wall of the stirring shaft. Multiple perforations are provided on each of the two stirring blades. Multiple support columns are fixedly connected to the top of the ultrasonic dispersion tank corresponding to the outer side of the stirring shaft. A circular shell and a square shell are fixedly connected to the top of the multiple support columns. The circular shell and the square shell are fixedly connected. Multiple arc-shaped fan blades are fixedly connected to the inner side of the outer wall of the stirring shaft corresponding to the circular shell and the square shell.

[0007] Preferably, the stirring shaft has an air inlet and an exhaust outlet at its upper and lower ends, respectively, and the interiors of the two stirring blades are connected to the air inlet and the exhaust outlet, respectively.

[0008] Preferably, the top ends of the circular shell and the square shell are fixedly connected to a plurality of support rods, and the top ends of the plurality of support rods are fixedly connected to a connecting block.

[0009] Preferably, the connecting block and the stirring shaft are rotatably connected, a connecting pipe is fixedly connected to the top of the connecting block, and the connecting pipe is fixedly connected to the square shell.

[0010] Preferably, the inner wall of the ultrasonic dispersion tank is fixedly connected to multiple rows of ultrasonic transducers, which are used to perform intercalation and exfoliation of the graphene inside the ultrasonic dispersion tank.

[0011] Preferably, an electromagnetic valve is fixedly connected to the bottom of the outer wall of the ultrasonic dispersion tank via a pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) The graphene preparation intercalation exfoliation device can stir and disperse graphene and other raw materials in an ultrasonic dispersion tank through the cooperation of a square shell, a circular shell, an arc-shaped fan blade, a stirring shaft, stirring blades and perforations. The perforations can reduce the resistance during stirring and eliminate the need for a motor, thus reducing energy consumption.

[0014] 2) This graphene preparation intercalation and exfoliation device, through the coordinated operation of connecting pipes, connecting blocks, air inlets, stirring blades, and exhaust ports, allows for heating during stirring. This accelerates the migration of anions and cations in the solution under the influence of an electric field, promoting their insertion between graphite layers. This facilitates more efficient intercalation reactions and more thorough exfoliation, resulting in a more stable and uniform graphene dispersion. Furthermore, the intercalation and exfoliation process is enhanced by using an ultrasonic transducer during stirring and dispersion, further improving the exfoliation effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an intercalation and exfoliation device for graphene preparation according to the present invention.

[0016] Figure 2 This is a bottom perspective view of an intercalation and exfoliation device for graphene preparation according to the present invention.

[0017] Figure 3 This is a cross-sectional view of the ultrasonic dispersion tank of an intercalation exfoliation device for graphene preparation according to this utility model.

[0018] Figure 4This is a cross-sectional view of the stirring shaft and stirring blades of an intercalation and exfoliation device for graphene preparation according to the present invention.

[0019] Figure 5 This is a cross-sectional view of the circular and square shells of an intercalation and exfoliation device for graphene preparation according to this utility model.

[0020] In the diagram: 1. Ultrasonic dispersion tank; 2. Stirring shaft; 3. Stirring blade; 4. Perforation; 5. Support column; 6. Circular shell; 7. Square shell; 8. Arc-shaped fan blade; 9. Air inlet; 10. Exhaust outlet; 11. Support rod; 12. Connecting block; 13. Connecting pipe; 14. Ultrasonic transducer; 15. Solenoid valve. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Combination Figures 1-5 An intercalation exfoliation device for graphene preparation includes an ultrasonic dispersion tank 1. The top of the ultrasonic dispersion tank 1 has a feed inlet (not shown in the figure). The ultrasonic dispersion tank 1 is rotatably connected to a stirring shaft 2. Stirring blades 3 are fixedly connected to both sides of the outer wall of the stirring shaft 2. Multiple perforations 4 are provided on each of the two stirring blades 3. Multiple support columns 5 are fixedly connected to the top of the ultrasonic dispersion tank 1 corresponding to the outer side of the stirring shaft 2. Circular shells 6 and square shells 7 are fixedly connected to the top of the multiple support columns 5. Circular shells 6 and square shells 7 are fixedly connected. Multiple arc-shaped fan blades 8 are fixedly connected to the inner side of the outer wall of the stirring shaft 2 corresponding to the inner side of the circular shells 6 and square shells 7.

[0024] Specifically, the stirring shaft 2 drives the stirring blades 3 to rotate, thereby stirring and dispersing the graphene in the ultrasonic dispersion tank 1. At the same time, the perforation 4 reduces the resistance during the stirring process and reduces energy loss. The support column 5 can limit and fix the circular shell 6 and the square shell 7. Steam is injected into the square shell 7, and the steam acts on the arc-shaped fan blades 8, thereby driving the stirring shaft 2 to rotate. Therefore, no motor is needed during use, thus reducing energy consumption.

[0025] Example 2

[0026] See Figures 3-5Furthermore, based on Embodiment 1, the stirring shaft 2 is further provided with an air inlet 9 and an exhaust 10 at its upper and lower ends, respectively. The interiors of the two stirring blades 3 are connected to the air inlet 9 and the exhaust 10, respectively. Multiple support rods 11 are fixedly connected to the top ends of the circular shell 6 and the square shell 7. A connecting block 12 is fixedly connected to the top ends of the multiple support rods 11. The connecting block 12 is rotatably connected to the stirring shaft 2. A connecting pipe 13 is fixedly connected to the top end of the connecting block 12. The connecting pipe 13 is fixedly connected to the square shell 7. Multiple rows of ultrasonic transducers 14 are fixedly connected to the inner wall of the ultrasonic dispersion tank 1, and the graphene in the ultrasonic dispersion tank 1 is intercalated and peeled off. A solenoid valve 15 is fixedly connected to the bottom of the outer wall of the ultrasonic dispersion tank 1 through a pipe.

[0027] Specifically, steam can be transferred into the connecting block 12 through the connecting pipe 13, and then into the air inlet 9. Since the inside of the stirring blade 3 is connected to the air inlet 9, steam can enter the stirring blade 3. Through the heat transfer effect of the stirring blade 3, the graphene can be heated, which can accelerate the migration of anions and cations in the solution under the action of the electric field and promote their insertion between graphite layers. This helps to carry out the intercalation reaction more effectively and make the exfoliation more thorough, resulting in a more stable and uniform graphene dispersion. Furthermore, during the stirring and dispersion process, the intercalation and exfoliation are carried out by the ultrasonic transducer 14, which further improves the exfoliation effect.

[0028] In actual operation, graphene and other raw materials are first injected into the ultrasonic dispersion tank 1 through the feed port. At this time, steam is injected into the square shell 7. The steam acts on the arc-shaped fan blade 8, which can make the stirring shaft 2 rotate and drive the stirring blade 3 to rotate. Therefore, the graphene and other raw materials in the ultrasonic dispersion tank 1 can be stirred and dispersed. During the stirring process, the resistance during the stirring process can be reduced by the perforation 4. Moreover, no motor is needed during the operation, which can reduce energy consumption.

[0029] Furthermore, during the stirring process, steam is injected into the connecting block 12 through the connecting pipe 13, and then enters the air inlet 9, thus dispersing into the interior of the stirring blades 3 on both sides. This allows for heating during stirring, accelerating the migration of anions and cations in the solution under the influence of the electric field and promoting their insertion between graphite layers. This facilitates a more efficient intercalation reaction and more thorough exfoliation, resulting in a more stable and uniform graphene dispersion. Furthermore, the intercalation and exfoliation are further enhanced by using an ultrasonic transducer 14 during the stirring and dispersion process.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intercalation exfoliation device for graphene preparation, comprising an ultrasonic dispersion tank (1), characterized in that: The ultrasonic dispersion tank (1) is rotatably connected to a stirring shaft (2). Stirring blades (3) are fixedly connected to both sides of the outer wall of the stirring shaft (2). Multiple perforations (4) are provided on both stirring blades (3). Multiple support columns (5) are fixedly connected to the top of the ultrasonic dispersion tank (1) corresponding to the outer side of the stirring shaft (2). Circular shells (6) and square shells (7) are fixedly connected to the top of the multiple support columns (5). Circular shells (6) and square shells (7) are fixedly connected. Multiple arc-shaped fan blades (8) are fixedly connected to the inner side of the outer wall of the stirring shaft (2) corresponding to the circular shells (6) and square shells (7).

2. The intercalation exfoliation device for graphene preparation according to claim 1, characterized in that: The stirring shaft (2) has an air inlet (9) and an exhaust (10) at its upper and lower ends, respectively, and the interiors of the two stirring blades (3) are connected to the air inlet (9) and the exhaust (10), respectively.

3. The intercalation exfoliation device for graphene preparation according to claim 2, characterized in that: The top ends of the circular shell (6) and the square shell (7) are fixedly connected to a plurality of support rods (11), and the top ends of the plurality of support rods (11) are fixedly connected to a connecting block (12).

4. The intercalation exfoliation device for graphene preparation according to claim 3, characterized in that: The connecting block (12) and the stirring shaft (2) are rotatably connected. A connecting pipe (13) is fixedly connected to the top of the connecting block (12). The connecting pipe (13) and the square shell (7) are fixedly connected.

5. The intercalation and exfoliation device for graphene preparation according to claim 1, characterized in that: The ultrasonic dispersion tank (1) has multiple rows of ultrasonic transducers (14) fixedly connected to its inner wall, and performs intercalation and exfoliation on the graphene inside the ultrasonic dispersion tank (1).

6. The intercalation exfoliation device for graphene preparation according to claim 1, characterized in that: The bottom of the outer wall of the ultrasonic dispersion tank (1) is fixedly connected to a solenoid valve (15) via a pipe.

Images