Graphene fiber dissolution identification device

Abstract

The invention relates to the technical field of dissolving devices, in particular to a graphene fiber dissolving identification device which comprises a pedestal and a vertical frame standing on the rear side of the pedestal, and a liftable top frame is arranged on the vertical frame; the top frame is located over the pedestal, and an airflow stirring mechanism is installed on the top frame. When the airflow stirring mechanism is used, the middle lower portion of the airflow stirring mechanism extends into the dissolving cup, the airflow stirring mechanism is used for injecting heated airflow into the dissolving cup, bubbles formed by the airflow can drive the whole solution system to flow circularly in the rising process, and graphene fibers make full contact with a solvent; the bottom end of the airflow stirring mechanism is provided with a self-adjusting jet head with the coverage area capable of being adjusted in a self-adaptive mode, and the diameter of the self-adjusting jet head can be adjusted according to the cup diameter of the dissolving cup to adapt to the cup diameter of the dissolving cup. Fiber in the dissolving cup is dissolved and stirred in a lossless mode through airflow stirring, gas is heated, a solvent can be heated while stirring is conducted, and the uniformity of the internal temperature is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of dissolution devices, and in particular to a graphene fiber dissolution and identification device. Background Art

[0002] After the graphene fiber is dissolved in a specific solvent, the presence of graphene precipitates is observed to detect and identify whether the graphene fiber contains graphene materials.

[0003] In order to accelerate the dissolution process of graphene fibers in a specific solvent, a heating and stirring device is required. For example, in some experiments, a magnetic stirrer with a heating function is used. The container containing the fiber sample and the solvent is placed on the stirrer, and the appropriate temperature and stirring speed are set to promote the dissolution of the fiber.

[0004] During dissolution, it is necessary to ensure that the temperature is evenly distributed to avoid local overheating or overcooling. During stirring, it is necessary to ensure that the fibers can be fully dispersed while avoiding fiber breakage and destruction of the fiber structure.

[0005] Based on this, this solution provides a graphene fiber dissolution and identification device, which adopts the airflow stirring method. During the rising process of bubbles in the solution, the bubbles can drive the entire solution system to circulate, so that the graphene fiber and the solvent are fully in contact, achieving a better mixing effect. At the same time, by controlling the temperature of the gas to adjust the temperature of the solution, strong shear force and local overheating will not be generated, which is beneficial to protecting the structure of the graphene fiber. Summary of the Invention

[0006] (1) Technical issues

[0007] The present invention aims to at least solve the problem in the prior art that the fibers are evenly distributed but are easily damaged by a stirring member.

[0008] (2) Technical content

[0009] This solution provides a graphene fiber dissolution identification device, which is achieved by the following specific technical means: comprising a base and a vertical frame standing on the rear side of the base, and a top frame that can be raised and lowered on the vertical frame;

[0010] The top frame is located directly above the pedestal and an air flow stirring mechanism is installed on the top frame;

[0011] When the air flow stirring mechanism is in use, the lower middle portion thereof extends into the dissolution cup placed on the pedestal, and the air flow stirring mechanism is used to inject heated stirring air flow into the dissolution cup;

[0012] In addition, a self-adjusting nozzle is provided at the bottom end of the air flow stirring mechanism, and the diameter of the self-adjusting nozzle can be adjusted to adapt to the cup diameter of the dissolving cup.

[0013] Preferred technical solution 1: The airflow stirring mechanism includes a vertical pipe installed through the top frame, and the self-adjusting nozzle is fixed at the bottom end of the vertical pipe;

[0014] The self-adjusting nozzle includes a connecting pipe fixed at the bottom end of the vertical pipe and a mounting head located below the connecting pipe. The bottom end of the connecting pipe is slidably inserted into the mounting head. A plurality of telescopic nozzles are distributed around the mounting head. A connecting rod is hingedly connected between the telescopic end of the telescopic nozzle and the connecting pipe.

[0015] After the bottom of the mounting head contacts and continuously squeezes the bottom wall of the dissolving cup, the telescopic jet tube will be pushed and stretched until the end of the telescopic jet tube contacts the cup wall of the dissolving cup, and the gas is discharged from the air holes distributed on the telescopic jet tube.

[0016] Preferred Technical Solution 2: The telescopic air jet tube includes an air pipe 1 fixedly connected to and communicated with the mounting head, a fixed tube fixedly connected to and communicated with the mounting head at the bottom of the air pipe 1, and an air pipe 2 that slides in the fixed tube, and the bottom end of the connecting rod is hingedly connected to the outer end of the air pipe 2;

[0017] Stomata are distributed on both trachea 1 and trachea 2.

[0018] Preferred technical solution three: There is a heating device on the rear side of the pedestal, and the inlet of the heating device is connected to an external gas supply device, and the outlet is connected to the top of the vertical pipe through a hose, and the gas supply device is used to supply inert gas.

[0019] Preferred technical solution four: the vertical tube is rotatably connected to the top frame, and a driven gear is fixedly sleeved on the top of the vertical tube. The driven gear is engaged with a driving gear fixed on the output shaft of a motor installed in the top frame, and the motor drives the driving gear to rotate back and forth slowly.

[0020] Optimal technical solution five: The rear side of the top frame is threadedly connected to a screw rod rotatably installed on the vertical frame, and a second motor connected to the screw rod is installed at the bottom of the vertical frame. The second motor is used to drive the screw rod to rotate and control the lifting of the top frame.

[0021] (3) Technical effects

[0022] The above structure enables this solution to have the following beneficial effects:

[0023] 1. The fiber in the dissolving cup is dissolved and stirred without damage by air flow stirring, and the gas is heated, which can complete the heating of the solvent while stirring, ensuring the uniformity of the internal temperature;

[0024] 2. The self-adjusting nozzle structure can automatically adapt to the size of the dissolving cup, thereby ensuring that the bubbles are evenly distributed in the dissolving cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0027] Figure 2 Use a state diagram for this solution;

[0028] Figure 3 Schematic diagram of the structure of the airflow stirring mechanism of this scheme;

[0029] Figure 4 This is a cross-sectional view of the airflow stirring mechanism of this scheme;

[0030] Figure 5 This is the exploded view of the self-adjusting jet head of this scheme.

[0031] Among them, 1. pedestal; 11. vertical frame; 12. screw rod; 13. top frame;

[0032] 2. Dissolving cup;

[0033] 3. Airflow stirring mechanism; 31. Vertical pipe; 32. Self-adjusting jet nozzle; 321. Connecting pipe; 322. Mounting head; 323. Telescopic jet nozzle; 3231. Air pipe 1; 3232. Fixed pipe; 3233. Air pipe 2; 3234. Air hole; 33. Connecting rod; 34. Spring;

[0034] 4. Heating device;

[0035] 5. Driven gear;

[0036] 6. Driving gear. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 3 , a graphene fiber dissolution identification device includes a base 1 and a vertical frame 11 standing on the rear side of the base 1, a top frame 13 that can be raised and lowered and slid is provided on the vertical frame 11, and the base 1 is used to place a dissolution cup 2;

[0039] The top frame 13 is located directly above the pedestal 1 and an airflow stirring mechanism 3 is installed on the top frame 13. When in use, the lower middle part of the airflow stirring mechanism 3 extends into the dissolution cup 2. The airflow stirring mechanism 3 is used to inject heated airflow into the dissolution cup 2. The bubbles formed by the airflow can drive the entire solution system to circulate during the rising process, so that the graphene fibers are fully in contact with the solvent; and the bottom end of the airflow stirring mechanism 3 is provided with a self-adjusting nozzle 32 whose coverage area can be adaptively adjusted. The self-adjusting nozzle 32 can adjust its diameter to adapt to the cup diameter of the dissolution cup 2.

[0040] See also Figure 1-Figure 5 , graphene fiber dissolution and identification device, the airflow stirring mechanism 3 includes a vertical tube 31 installed through the top frame 13, a self-adjusting air jet head 32 is fixed to the bottom end of the vertical tube 31, and the self-adjusting air jet head 32 includes a connecting tube 321 fixed to the bottom end of the vertical tube 31 and a mounting head 322 located below the connecting tube 321, the bottom end of the connecting tube 321 is slidably inserted into the mounting head 322, a spring 34 is connected between the inner bottom wall of the mounting head 322 and the connecting tube 321, the spring 34 is configured to provide a force to push down the mounting head 322, and a plurality of groups of telescopic air jet tubes 323 are distributed around the mounting head 322, and a connecting rod 33 is hingedly connected between the telescopic end of the telescopic air jet tube 323 and the connecting tube 321;

[0041] Before the mounting head 322 contacts the bottom wall of the dissolving cup 2, the mounting head 322 slides to the bottom end of the connecting tube 321 under its own weight. At this time, the telescopic jet tube 323 is in a retracted state under the pull of the connecting rod 33.

[0042] As the bottom of the mounting head 322 contacts and squeezes the bottom wall of the dissolving cup 2, the mounting head 322 moves upward along the connecting tube 321, causing the connecting rod 33 to pull the telescopic jet tube 323 to extend until the end of the telescopic jet tube 323 contacts the wall of the dissolving cup 2, thereby achieving automatic adaptation of the overall diameter of the self-adjusting jet head 32 to the inner diameter of the dissolving cup 2, thereby also being able to position the dissolving cup 2 and preventing the dissolving cup 2 from tilting or falling when it is hit by external force;

[0043] At the same time, the telescopic jet tube 323 is located at the bottom of the dissolving cup 2, and the air flow passes through the vertical pipe 31, the connecting pipe 321, and the mounting head 322 in sequence, enters the telescopic jet tube 323, and is discharged from the air holes 3234 distributed on the telescopic jet tube 323.

[0044] See also Figure 4-Figure 5 The graphene fiber dissolution identification device includes a telescopic air jet tube 323 comprising an air pipe 1 3231 fixedly connected to and in communication with the mounting head 322, a fixed tube 3232 fixedly connected to and in communication with the mounting head 322 at the bottom of the air pipe 1 3231, and an air pipe 2 3233 that slides in and out of the fixed tube 3232. The bottom end of the connecting rod 33 is hingedly connected to the outer end of the air pipe 2 3233.

[0045] The air holes 3234 are distributed on both the first air pipe 3231 and the second air pipe 3233. All the air holes 3234 on the first air pipe 3231 and the part of the air holes 3234 of the second air pipe 3233 exposed from the fixed pipe 3232 can participate in the exhaust work.

[0046] Preferred technical solution four: A heating device 4 is provided on the rear side of the pedestal 1. The heating device 4 is preferably a constant temperature heating device 4 with a temperature regulating function, and the inlet of the heating device 4 is connected to an external gas supply device, and the outlet is connected to the top of the vertical pipe 31 through a hose. Inert gas is supplied to the vertical pipe 31 through the gas supply device, and the gas flows through the heating device 4 to be heated;

[0047] The heated gas can be used to stir the fibers in the dissolving cup 2 flexibly and without damage, while also heating the solvent in the dissolving cup 2 .

[0048] See also Figure 1-Figure 2 , graphene fiber dissolution and identification device, the vertical tube 31 is rotatably connected to the top frame 13, and the top fixed sleeve of the vertical tube 31 is provided with a driven gear 5, the driven gear 5 is engaged with the driving gear 6 fixed on the output shaft of the motor 1 installed in the top frame 13, and the motor 1 drives the driving gear 6 to rotate back and forth slowly, thereby driving the self-adjusting jet head 32 to rotate at a low speed without damaging the fiber, constantly changing the position of the telescopic jet tube 323, and increasing the uniformity of stirring and heating.

[0049] See also Figure 1-Figure 2 , a graphene fiber dissolution identification device, a pressure sensor is fixed at the outer end of the trachea 2 3233, and the pressure sensor is used to detect whether the end of the trachea 2 3233 is in contact with the cup wall of the dissolution cup 2;

[0050] The rear side of the top frame 13 is threadedly connected to the screw rod 12 rotatably mounted on the vertical frame 11, and a second motor connected to the screw rod 12 is installed at the bottom of the vertical frame 11. The second motor is used to drive the screw rod 12 to rotate and control the lifting of the top frame 13;

[0051] Motor 2 is connected to the pressure sensor signal. After the pressure sensor detects the pressure, the feedback signal promptly controls the motor 2 to turn off.

[0052] It is worth noting that the motor 1, motor 2, heating device 4 and pressure sensor mentioned in this embodiment, as well as their supporting power supply and control switch can also be provided by the manufacturer. The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art without further explanation.

[0053] The undisclosed parts in the present invention are all prior art, and their specific structures and working principles are not described in detail.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A graphene fiber dissolution identification device, comprising a base (1) and a vertical frame (11), wherein a top frame (13) capable of being raised and lowered is provided on the vertical frame (11), characterized in that: The top frame (13) is located directly above the pedestal (1) and an air flow stirring mechanism (3) is installed on the top frame (13); When in use, the lower middle portion of the air flow stirring mechanism (3) extends into the dissolution cup (2) placed on the pedestal (1), and the air flow stirring mechanism (3) is used to inject heated air flow into the dissolution cup (2). The bottom end of the air flow stirring mechanism (3) is provided with a self-adjusting nozzle (32) whose coverage area can be adaptively adjusted.

2. The graphene fiber dissolution identification device according to claim 1, characterized in that: The air flow stirring mechanism (3) comprises a vertical pipe (31) installed through the top frame (13), and the self-adjusting nozzle (32) is fixed to the bottom end of the vertical pipe (31); The self-adjusting jet head (32) comprises a connecting pipe (321) fixed at the bottom end of the vertical pipe (31) and a mounting head (322) located below the connecting pipe (321). The bottom end of the connecting pipe (321) is slidably inserted into the mounting head (322). A plurality of groups of telescopic jet pipes (323) are distributed around the mounting head (322). A connecting rod (33) is hingedly connected between the telescopic end of the telescopic jet pipe (323) and the connecting pipe (321).

3. The graphene fiber dissolution identification device according to claim 2, characterized in that: The telescopic air injection tube (323) is provided with air holes (3234).

4. The graphene fiber dissolution identification device according to claim 2, characterized in that: A spring (34) is connected between the inner bottom wall of the mounting head (322) and the connecting pipe (321).

5. The graphene fiber dissolution identification device according to claim 3, characterized in that: The telescopic air jet pipe (323) comprises an air pipe 1 (3231) fixedly connected to and in communication with the mounting head (322), a fixed pipe (3232) fixedly connected to and in communication with the mounting head (322) at the bottom of the air pipe 1 (3231), and an air pipe 2 (3233) that can be pulled and slid in the fixed pipe (3232). The bottom end of the connecting rod (33) is hingedly connected to the outer end of the air pipe 2 (3233).

6. The graphene fiber dissolution identification device according to claim 5, characterized in that: The pores (3234) are distributed on both trachea 1 (3231) and trachea 2 (3233).

7. The graphene fiber dissolution identification device according to claim 2, characterized in that: A heating device (4) is provided on the rear side of the pedestal (1), the inlet of the heating device (4) is connected to an external air supply device, and the outlet is connected to the top of the vertical pipe (31) through a hose.

8. A graphene fiber dissolution identification device according to any one of claims 2 to 7, characterized in that: The vertical tube (31) is rotatably connected to the top frame (13), and a driven gear (5) is fixedly sleeved on the top of the vertical tube (31), and the driven gear (5) is meshed with a driving gear (6) fixed on an output shaft of a motor installed in the top frame (13).

9. The graphene fiber dissolution identification device according to claim 8, characterized in that: A pressure sensor is fixed at the outer end of the second trachea (3233), and the pressure sensor is used to detect whether the end of the second trachea (3233) is in contact with the wall of the dissolution cup (2).

10. The graphene fiber dissolution identification device according to claim 9, characterized in that: The rear side of the top frame (13) is threadedly connected to a screw rod (12) rotatably mounted on the vertical frame (11), and a second motor connected to the screw rod (12) is installed in the bottom of the vertical frame (11); The second motor is connected to the pressure sensor signal.

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