Carbon nanotube allotrope solvent separation apparatus

Abstract

The utility model relates to carbon nanotube preparation technical field especially, and more particularly to a kind of carbon nanotube allotrope solvent separation equipment.The utility model provides such a kind of carbon nanotube allotrope solvent separation equipment, including support seat, extraction cylinder, feeding hopper, suction pipe, pipeline pump, separation cylinder and ball valve, support seat is fixedly connected with extraction cylinder, extraction cylinder top right side is provided with feeding hopper, extraction cylinder left side is connected and is communicated with suction pipe, pipeline pump is installed on suction pipe, support seat left side is installed with separation cylinder, suction pipe upper end is connected with separation cylinder, and separation cylinder bottom is provided with ball valve.Floating plate rises with liquid surface and floats on the surface of supernatant, suction pipe floats with it, always keep in supernatant area, by the design, under the premise of not disturbing lower layer sediment, solution rich in target carbon nanotube is extracted, and high-efficiency separation is realized.

Description

Technical Field

[0001] This utility model relates to the field of carbon nanotube preparation technology, and in particular to a solvent separation device for carbon nanotube allotropes. Background Technology

[0002] Carbon nanotubes, as one-dimensional nanomaterials with excellent electrical, mechanical, and thermal properties, have shown great application potential in many high-tech fields such as electronics, composite materials, and energy storage. However, carbon nanotubes prepared by conventional methods are usually mixtures of allotropes with different structures (such as chirality, diameter, and wall number). This structural diversity directly leads to differences in their electrical properties (metallic or semiconducting), which severely restricts their practical application in high-performance devices.

[0003] Currently, the main techniques for separating carbon nanotube allotropes include density gradient centrifugation, gel permeation chromatography, and aqueous two-phase extraction. While these methods have made some progress, challenges remain in the separation and purification process. Especially for techniques that rely on sedimentation or centrifugation for solid-liquid separation, careless handling during the subsequent extraction of the supernatant rich in the target component can easily disturb the precipitate at the bottom, causing the separated components to remix and significantly affecting the purity and separation efficiency of the final product.

[0004] Therefore, there is a need for a highly efficient solvent separation device for carbon nanotube allotropes. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, where improper operation during the subsequent extraction of supernatant rich in target components can easily disturb the precipitate at the bottom, causing the separated components to remix and thus significantly affecting the purity and separation efficiency of the final product, this invention provides a highly efficient solvent separation device for carbon nanotube allotropes.

[0006] The technical solution is as follows: A solvent separation device for carbon nanotube allotropes includes a support base, an extraction cylinder, a feeding hopper, a suction pipe, a pipeline pump, a separation cylinder, and a ball valve. The extraction cylinder is fixedly connected to the support base. A feeding hopper is provided on the top right side of the extraction cylinder. A suction pipe is connected and communicates with the left side of the extraction cylinder. A pipeline pump is installed on the suction pipe. The separation cylinder is installed on the left side of the support base. The upper end of the suction pipe is connected to the separation cylinder. A ball valve is provided at the bottom of the separation cylinder. The device also includes a guide rod, a float plate, a fixed seat, and a suction pipe. A guide rod is slidably provided on the separation cylinder. A float plate is fixedly connected to the bottom end of the guide rod. Fixed seats are fixedly connected to both the upper and lower ends of the guide rod. A suction pipe is provided between the two fixed seats.

[0007] Preferably, the device also includes a servo motor, a rotating shaft, and a mixing plate. The servo motor is installed on the top of the extraction cylinder, and the output shaft of the servo motor is connected to the rotating shaft via a coupling. The mixing plate is fixedly connected to the rotating shaft.

[0008] Preferably, the device also includes a heating cylinder, heating tubes, and terminals. The heating cylinder is fixedly connected to the support base. The lower part of the extraction cylinder is located inside the heating cylinder. Multiple heating tubes are wound around the inner wall of the heating cylinder. Two terminals are connected to the heating tubes and pass through the heating cylinder.

[0009] Preferably, an observation plate is also included, with an observation plate embedded on the left side of the separation cylinder.

[0010] Preferably, it also includes a base plate, with the base plate connected to the bottom of the support.

[0011] Preferably, the suction tube is a flexible tube.

[0012] Compared with the prior art, this utility model provides a carbon nanotube allotrope solvent separation device with the following beneficial effects: 1. The float rises with the liquid surface and floats on the surface of the upper clear liquid, and the suction tube floats up with it, always remaining in the upper clear liquid area. Through this design, the solution rich in target carbon nanotubes can be extracted without disturbing the lower sediment, thus achieving efficient separation.

[0013] 2. By starting the servo motor, its output shaft drives the rotating shaft to rotate, thereby driving the mixing plate fixed on the rotating shaft to stir in the extraction cylinder, so that the carbon nanotubes can fully contact and disperse with the solvent, thus improving the extraction efficiency.

[0014] 3. By connecting the terminal to the power supply, the heating tube generates heat and heats the lower part of the extraction cylinder. Under the synergistic effect of heating and stirring, the solvent's solubility is enhanced, which helps to selectively dissolve specific types of carbon nanotube allotropes, while other structures may remain insoluble or have low solubility, thereby achieving preliminary separation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional cross-sectional view of the support base, separation cylinder, and mixing plate of this utility model.

[0017] Figure 3 This is a three-dimensional cross-sectional view of the extraction cylinder, the material extraction tube, and the heating tube of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the extraction cylinder, servo motor, and mixing plate of this utility model.

[0019] Figure 5 This is a three-dimensional cross-sectional view of the separation cylinder, suction tube, and observation plate of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Support base, 2. Extraction cylinder, 3. Feed hopper, 4. Suction pipe, 5. Pipeline pump, 6. Separation cylinder, 7. Guide rod, 8. Float, 9. Ball valve, 10. Fixed base, 11. Suction pipe, 12. Servo motor, 13. Rotary shaft, 14. Mixing plate, 15. Heating cylinder, 16. Heating tube, 17. Terminal block, 18. Observation plate, 19. Base plate. 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: A solvent separation device for carbon nanotube allotropes, please refer to [link / reference]. Figures 1-5 The system includes a support base 1, an extraction cylinder 2, a feeding hopper 3, a suction pipe 4, a pipeline pump 5, a separation cylinder 6, and a ball valve 9. The extraction cylinder 2 is fixedly connected to the support base 1. The feeding hopper 3 is located on the top right side of the extraction cylinder 2. The suction pipe 4 is connected to and communicates with the left side of the extraction cylinder 2. The pipeline pump 5 is installed on the suction pipe 4. The separation cylinder 6 is installed on the left side of the support base 1. The upper end of the suction pipe 4 is connected to the separation cylinder 6. The ball valve 9 is located at the bottom of the separation cylinder 6. The system also includes a guide rod 7, a float plate 8, a fixed seat 10, and a suction pipe 11. The guide rod 7 is slidably mounted on the separation cylinder 6. The float plate 8 is fixedly connected to the bottom end of the guide rod 7. Fixed seats 10 are fixedly connected to both the upper and lower ends of the guide rod 7. The suction pipe 11 is located between the two fixed seats 10. The system also includes a servo motor 12, a rotating shaft 13, and a mixing plate 14. The servo motor 12 is mounted on the top of the extraction cylinder 2. The output shaft of the servo motor 12 is connected to a rotating shaft 13 via a coupling. A mixing plate 14 is fixedly connected to the rotating shaft 13. The system also includes a heating cylinder 15, heating tubes 16, and terminals 17. The heating cylinder 15 is fixedly connected to the support base 1. The lower part of the extraction cylinder 2 is located inside the heating cylinder 15. Several heating tubes 16 are wound around the inner wall of the heating cylinder 15. Two terminals 17 are connected to the heating tubes 16 and pass through the heating cylinder 15. An observation plate 18 is embedded on the left side of the separation cylinder 6 to monitor the internal liquid level changes and stratification in real time, ensuring that the separation process is controllable. A base plate 19 is connected to the bottom of the support base 1 to facilitate the placement of the support base 1 and improve the overall stability of the equipment. The suction tube 11 is a flexible tube that can bend as the float 8 rises and falls, thereby enabling the extraction of the upper clear liquid at different liquid levels.

[0023] When this equipment is needed, firstly, a mixture of carbon nanotubes containing different allotropes is added to the extraction cylinder 2 through the feeding hopper 3, along with an appropriate solvent. Then, the servo motor 12 is started, and its output shaft drives the rotating shaft 13 to rotate, thereby driving the mixing plate 14 to stir the material in the extraction cylinder 2. This ensures that the carbon nanotubes and solvent are fully contacted and dispersed, thus improving extraction efficiency. During this process, the terminal 17 is connected to the power supply, causing the heating tube 16 to generate heat and heat the lower part of the extraction cylinder 2. Under the synergistic effect of heating and stirring, the solvent's solubility is enhanced, helping to selectively dissolve specific types of carbon nanotube allotropes, while other structures may remain insoluble or have low solubility, thus achieving preliminary separation. When the extraction process reaches the set time, the pipeline pump 5 is started, and the pipeline pump 5 pumps... The feed tube 4 extracts the initially separated mixture (including solvent and dissolved carbon nanotube components) from the extraction tube 2 and transports it to the separation tube 6 on the left. After the mixture enters the separation tube 6, it separates into layers due to the different densities of the components during the settling process: the heavier undissolved carbon nanotubes or aggregates gradually sink to the bottom, while the solution rich in target carbon nanotubes is located on the upper layer. At this time, the float plate 8 rises with the liquid level and floats on the surface of the upper clear liquid, and the suction tube 11 floats up accordingly, always remaining in the upper clear liquid area. Through this design, the solution rich in target carbon nanotubes can be extracted without disturbing the lower sediment, achieving efficient separation. After the separation is completed, the passage of the suction tube 11 is closed, and the ball valve 9 at the bottom of the separation tube 6 is opened to discharge the residue deposited at the bottom or the waste liquid used for equipment cleaning, which is convenient for subsequent cleaning or the next batch of operation.

[0024] 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 these 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. A solvent separation device for carbon nanotube allotropes, comprising a support base (1), an extraction cylinder (2), a feeding hopper (3), a suction pipe (4), a pipeline pump (5), a separation cylinder (6), and a ball valve (9), wherein the extraction cylinder (2) is fixedly connected to the support base (1), the feeding hopper (3) is provided on the right side of the top of the extraction cylinder (2), the suction pipe (4) is connected and communicated to the left side of the extraction cylinder (2), the pipeline pump (5) is installed on the suction pipe (4), the separation cylinder (6) is installed on the left side of the support base (1), the upper end of the suction pipe (4) is connected to the separation cylinder (6), and a ball valve (9) is provided at the bottom of the separation cylinder (6), characterized in that, It also includes a guide rod (7), a float (8), a fixed seat (10) and a suction tube (11). The guide rod (7) is slidably installed on the separation cylinder (6). The bottom end of the guide rod (7) is fixedly connected to the float (8). The upper and lower ends of the guide rod (7) are fixedly connected to the fixed seats (10). The suction tube (11) is installed between the two fixed seats (10).

2. The carbon nanotube allotrope solvent separation device according to claim 1, characterized in that, It also includes a servo motor (12), a rotating shaft (13) and a mixing plate (14). The servo motor (12) is installed on the top of the extraction cylinder (2). The output shaft of the servo motor (12) is connected to the rotating shaft (13) through a coupling. The mixing plate (14) is fixedly connected to the rotating shaft (13).

3. The carbon nanotube allotrope solvent separation device according to claim 2, characterized in that, It also includes a heating cylinder (15), a heating tube (16) and a terminal block (17). The heating cylinder (15) is fixedly connected to the support base (1). The lower part of the extraction cylinder (2) is located inside the heating cylinder (15). Multiple heating tubes (16) are wound around the inner wall of the heating cylinder (15). Two terminal blocks (17) are connected to the heating tubes (16). The terminal blocks (17) penetrate the heating cylinder (15).

4. The carbon nanotube allotrope solvent separation device according to claim 3, characterized in that, It also includes an observation plate (18), which is embedded on the left side of the separation cylinder (6).

5. The carbon nanotube allotrope solvent separation device according to claim 4, characterized in that, It also includes a base plate (19), and the bottom of the support base (1) is connected to the base plate (19).

6. The carbon nanotube allotrope solvent separation device according to claim 5, characterized in that, The suction tube (11) is a flexible tube.

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