CN209522579U - A kind of stripping off device for graphene - Google Patents

Abstract

The utility model discloses a stripping device for graphene, relates to the field of graphene materials, and specifically comprises a mixing tank, in which a plurality of stirring devices for stirring graphene are installed, and the side of the mixing tank is The first centrifugal pump is fixedly installed on the wall, the liquid inlet of the first centrifugal pump is fixedly connected with the discharge port of the mixing tank through a conduit, and the liquid discharge port of the first centrifugal pump is fixed with the first liquid inlet interface of the reaction kettle through a conduit Connection, by putting the graphene that needs to be stripped into the mixing tank, turning on the rotating motor to drive the rotating rod to rotate, so that the rotating rod can evenly stir the materials in the mixing tank, thereby increasing the rate of graphene peeling, and opening the valve The second and second centrifugal pumps discharge the graphene at the bottom of the reactor back to the top of the reactor, so that the graphene can be stripped circularly, improving the quality of graphene stripping. After the stripping is completed, close the valves two and two. Centrifugal pump, open the valve to complete the discharge.

Description

A stripping device for graphene

technical field

The utility model relates to the field of graphene materials, in particular to a stripping device for graphene.

Background technique

Graphene is a two-dimensional planar single-layer structure of carbon formed by sp2 hybridized carbon atoms bonded in the form of a hexagonal lattice, which is an allotrope of carbon. Graphene is the basic unit for constructing other dimensional carbon materials. When it changes in the way of wrapping, winding and stacking, it can form zero-dimensional fullerene, one-dimensional carbon nanotube and three-dimensional graphite respectively. Graphene has good electrical and optical properties, mechanical properties, thermal conductivity and extremely high charge carrier mobility, as well as excellent mechanical strength and flexibility. These properties of graphene make it attract a lot of attention and quickly become a research hotspot. Graphene and its derivatives treated by chemical modification are materials with special functions, which can be used in transistors, liquid crystal devices, electrochemical biosensors, supercapacitors, fuel cells, solar cells, etc. In the past research process, people usually use mechanical exfoliation method, chemical vapor deposition method, epitaxial growth method, redox method, etc. to prepare graphene.

However, none of the above-mentioned methods can be used to prepare defect-free high-quality graphene in large quantities. For example, although the mechanical exfoliation method can theoretically produce defect-free high-quality graphene, the output of the obtained graphene is very limited. When graphene is prepared by the existing mechanical exfoliation method, the efficiency of the production equipment for graphene is low. In view of the above problems, we propose an exfoliation device for graphene.

Utility model content

The purpose of this utility model is to provide a stripping device for graphene, to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A stripping device for graphene, comprising:

Mixing tank, multiple groups of stirring devices for stirring graphene are installed in the mixing tank, multiple groups of stirring devices are evenly distributed in the mixing tank, the side wall of the mixing tank is fixedly installed with the first A centrifugal pump, the liquid inlet of the first centrifugal pump is fixedly connected to the discharge port of the mixing tank through a conduit, and the liquid discharge port of the first centrifugal pump is fixedly connected to the first liquid inlet interface of the reaction kettle through a conduit;

A reaction kettle, the reaction kettle is fixed with a horizontally arranged partition, and the reaction kettle above the partition is equipped with a linkage device, and a plurality of evenly distributed ultrasonic vibrating rods are installed in the reaction kettle below the partition. The ultrasonic vibrating rods are all fixedly connected to the linkage device through a connecting rod; and a cooling device for cooling the reactor and a circulation device for cyclic stripping of graphene in the reactor.

As a further solution of the utility model: the stirring device is composed of a rotating motor, a rotating rod and a stirring rod, the rotating motor is fixedly installed on the top wall of the mixing tank through a bracket, and the output end of the rotating motor is fixedly installed with a vertically arranged The rotating rod extends into the mixing tank and is fixedly equipped with several evenly distributed stirring rods.

As a further solution of the utility model: the linkage device is composed of a large gear, a pinion and a driving motor, the driving motor is fixedly installed on the top of the reaction kettle, the output end of the driving motor is fixedly connected to the rotating shaft, and the other end of the rotating shaft extends to the reactor. The inside of the kettle is fixedly connected with the rotation center of the large gear. Two pinion gears are meshed and connected to each other symmetrically distributed on both sides of the large gear. The inner top wall is rotatably connected, and the rotation center of the lower surface of the pinion and the bull gear is fixedly installed with a vertical connecting rod, and the bottom of each connecting rod passes through the through hole opened by the partition and is fixedly connected with an ultrasonic vibration Great.

As a further solution of the utility model: the cooling device includes a condensation pipe, the condensation pipe is arranged on the outer wall of the reaction kettle through a ring and is fixedly installed by a pipe clamp, and the water inlet of the condensation pipe is fixedly connected with the submersible pump of the clear water pool, and the condensation The outlet of the pipe communicates with the water inlet of the reservoir.

As a further solution of the utility model: the circulation device is composed of a discharge pipe, a valve one, a second centrifugal pump and a valve two, one end of the discharge pipe is fixedly connected with the discharge port of the reactor, and the discharge pipe The other end of the three-way pipe is fixedly installed with a three-way pipe, and the interface on the top of the three-way pipe is fixedly connected with the liquid inlet of the second centrifugal pump through a conduit, and the valve two is fixedly installed on the conduit, and the liquid discharge port of the second centrifugal pump is connected with the outlet of the reaction kettle. The second liquid inlet interface is fixedly connected, the interface on the other side of the three-way pipe is fixedly installed with a catheter, and the catheter is fixedly equipped with a valve one.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model puts the graphene that needs to be stripped into the mixing tank, and turns on the rotating motor on each stirring device to drive the rotating rod to rotate, so that the rotating rod can evenly stir the materials in the mixing tank, thereby improving The exfoliation rate of graphene.

2. The utility model drives the large gear to rotate by turning on the driving motor, and the large gear and the small gear mesh with each other, so that the gear drives each ultrasonic vibrating rod to rotate itself through the connecting rod, which further strengthens the ultrasonic vibrating rod's effect on the graphene in the reactor. The rate at which the material is peeled off.

3. The utility model opens the second valve and the second centrifugal pump so that the graphene at the bottom of the reactor is circulated back to the top of the reactor, so that the graphene is stripped circularly and the quality of graphene stripping is improved. After the stripping is completed, , close valve two and the second centrifugal pump, open valve one to complete the discharge.

Description of drawings

Figure 1 is a schematic structural view of a stripping device for graphene.

Fig. 2 is a structural schematic diagram of a meshing connection between a large gear and a small gear in a graphene stripping device.

In the figure: mixing tank 1, stirring device 2, rotating motor 201, rotating rod 202, stirring rod 203, reaction kettle 3, first centrifugal pump 4, large gear 5, pinion 6, partition 7, connecting rod 8, Ultrasonic vibrating rod 9, driving motor 10, discharge pipe 11, valve one 12, second centrifugal pump 13, valve two 14, condensation pipe 15, water inlet 16, drain 17.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-2, in the utility model embodiment, a kind of stripping device for graphene comprises:

Mixing tank 1, multiple groups of stirring devices 2 for stirring graphene are installed in the mixing tank 1 (in this program, 2 groups of stirring devices are used, each group of 3), and the stirring device 2 is composed of a rotating motor 201, a rotating Composed of rod 202 and stirring rod 203, the rotating motor 201 is fixedly installed on the top wall of the mixing tank 1 through a bracket, and the output end of the rotating motor 201 is fixedly installed with a vertically arranged rotating rod 202, and the rotating rod 202 extends into the mixing tank 1 And fixedly installed with several evenly distributed stirring rods 203, multiple groups of stirring devices 2 are evenly distributed in the mixing tank 1, the side wall of the mixing tank 1 is fixedly installed with the first centrifugal pump 4, the inlet of the first centrifugal pump 4 The liquid port is fixedly connected to the discharge port of the mixing tank 1 through a conduit, and the liquid discharge port of the first centrifugal pump 4 is fixedly connected to the first liquid inlet port of the reaction kettle 3 through a conduit.

Drop the graphene that needs to be stripped into the mixing tank 1, and turn on the rotating motor 201 on each stirring device to drive the rotating rod 202 to rotate, so that the rotating rod 202 can evenly stir the material in the mixing tank 1, thereby improving The rate during the stripping of graphene, after the stirring is completed, the first centrifugal pump 4 is turned on to transport the stirred graphene material to the reactor 3.

The reaction kettle 3, the horizontal partition 7 is fixedly installed in the reactor 3, and the reaction kettle 3 above the partition 7 is equipped with a linkage device, and the reaction kettle 3 below the partition 7 is equipped with a plurality of evenly distributed ultrasonic vibration Rods 9, each ultrasonic vibrating rod 9 is fixedly connected to the linkage device through the connecting rod 8, the linkage device consists of a large gear 5, a pinion gear 6 and a drive motor 10, the drive motor 10 is fixedly installed on the top of the reactor 3, and the drive motor 10 The output end of the rotating shaft is fixedly connected to the rotating shaft, and the other end of the rotating shaft extends into the reactor 3 and is fixedly connected with the rotation center of the large gear 5. Both sides of the large gear 5 are meshed with two mutually symmetrically distributed small gears 6, each The center of rotation on the upper surface of the pinion 6 is rotatably connected to the inner top wall of the reaction kettle 3 through a rotating shaft, and the center of rotation on the lower surface of the pinion 6 and the bull gear 5 is fixedly equipped with a vertical connecting rod 8, each connecting rod The bottoms of 8 pass through the through holes provided by the partition 7 and are fixedly connected with ultrasonic vibrating rods 9, as well as a cooling device for cooling the reactor 3 and a circulation device for cyclic stripping of graphene in the reactor 3 .

By turning on the driving motor 10, the large gear 5 is driven to rotate, and the large gear 5 and the pinion 6 are meshed with each other, so that the gears drive each ultrasonic vibrating rod 9 to rotate by itself through the connecting rod 8, which further strengthens the impact of the ultrasonic vibrating rod 9 on the inside of the reactor 3. The rate at which the graphene material is peeled off (at this moment, both valve one 12 and valve two 14 are in a closed state).

The circulation device is composed of a discharge pipe 11, a valve one 12, a second centrifugal pump 13 and a valve two 14. One end of the discharge pipe 11 is fixedly connected to the discharge port of the reactor 3, and the other end of the discharge pipe 11 is fixedly installed There is a three-way pipe, and the interface on the top of the three-way pipe is fixedly connected with the liquid inlet of the second centrifugal pump 13 through the conduit, and the valve two 14 is fixedly installed on the conduit, and the liquid discharge port of the second centrifugal pump 13 is connected with the first outlet of the reaction kettle 3. The two liquid inlet interfaces are fixedly connected, and the interface on the other side of the three-way pipe is fixedly installed with a catheter, and a valve-12 is fixedly installed on the catheter.

Simultaneously open valve two 14 and the second centrifugal pump 13 so that the bottom graphene in the reactor 3 is circulated back to the inner top of the reactor 3, so that the graphene is peeled off in a cycle, and the quality of graphene peeling has been improved. After the peeling is completed , close the valve two 14 and the second centrifugal pump 13, and open the valve one 12 to complete the discharge.

The cooling device comprises a condensation pipe 15, the condensation pipe 15 is arranged on the outer wall of the reaction kettle 3 through a ring and is fixedly installed by a pipe clamp, and the water inlet 16 of the condensation pipe 15 is fixedly connected with the submersible pump of the clear water pool, and the drain of the condensation pipe 15 17 communicates with the water inlet of the reservoir. When the reactor 3 is in the working mode, water is added to the condensation pipe 15 through the submersible pump, so as to fully control the production conditions of graphene and make the production of graphene controllable.

In this scheme, the rotating motor 201 adopts the model Y80M1-2, the driving motor 10 adopts the model Y80M2-2, and the operation of the motor is an existing conventional circuit. For installation, its working principle, structure, and circuit control are all prior art, and the circuit and control involved in the utility model are also all prior art, and will not be repeated here.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Therefore, it cannot be construed as a limitation on the present invention; in addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance.

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the utility model.

Claims (5)

1. a kind of stripping off device for graphene characterized by comprising

Mixing pond (1), the interior agitating device (2) for being equipped with multiple groups for being stirred to graphene of the mixing pond (1), multiple groups The agitating device (2) is evenly distributed in mixing pond (1), and the side wall of the mixing pond (1) is fixedly installed with the first centrifugal pump (4), the inlet of the first centrifugal pump (4) is fixedly connected by conduit with the discharge port of mixing pond (1), the first centrifugal pump (4) Leakage fluid dram is fixedly connected by conduit with the first feed liquor interface of reaction kettle (3)；

Reaction kettle (3), the reaction kettle (3) is interior to be fixedly installed with the partition (7) being laterally arranged, and the reaction above partition (7) Kettle (3) is equipped with linkage, is equipped with multiple equally distributed ultrasound wave vibrating bars in the reaction kettle (3) below partition (7) (9), each described ultrasound wave vibrating bar (9) is fixedly connected by connecting rod (8) with linkage；And for reaction The cooling device that kettle (3) cools down and the circulator for carrying out recirculation gas stripper to the interior graphene of reaction kettle (3).

2. a kind of stripping off device for graphene according to claim 1, which is characterized in that the agitating device (2) It is made of rotary electric machine (201), rotating bar (202) and stirring rod (203), the rotary electric machine (201) is fixed by the bracket peace Mounted in mixing pond (1) roof, and the output end of rotary electric machine (201) is fixedly installed with vertically disposed rotating bar (202), described Rotating bar (202) extends in mixing pond (1) and is fixedly installed with several equally distributed stirring rods (203).

3. a kind of stripping off device for graphene according to claim 1, which is characterized in that the linkage is by big Gear (5), pinion gear (6) and driving motor (10), the driving motor (10) are fixedly mounted on the top of reaction kettle (3), drive The output end of dynamic motor (10) is fixedly connected with shaft, and the other end of shaft extends to turn in reaction kettle (3) and with gear wheel (5) Dynamic center is fixedly connected, and connection is engaged in the two sides of the gear wheel (5), and there are two the pinion gears (6) being symmetrically distributed, often The center of rotation of one pinion gear (6) upper surface passes through shaft and the inner roof wall of reaction kettle (3) is rotatablely connected, and small tooth The lower surface center of rotation of wheel (6) and gear wheel (5) is fixedly installed with vertically disposed connecting rod (8), each described company The bottom of extension bar (8) both passes through the through-hole that partition (7) opens up and is fixedly connected with ultrasound wave vibrating bar (9).

4. a kind of stripping off device for graphene according to claim 1, which is characterized in that the cooling device includes Condenser pipe (15), condenser pipe (15) is fixedly mounted in the lateral wall of reaction kettle (3) and by annular setting by pipe clamp, and is condensed The water inlet (16) of pipe (15) is fixedly connected with the immersible pump of clear water reserviors, the discharge outlet (17) of condenser pipe (15) and entering for reservoir The mouth of a river is interconnected.

5. a kind of stripping off device for graphene according to claim 1, which is characterized in that the circulator is by arranging Expects pipe (11), valve one (12), the second centrifugal pump (13) and valve two (14) composition, one end of the drainage conduit (11) with react The discharge gate of kettle (3) is fixedly connected, and the other end of drainage conduit (11) is fixedly installed with tee tube, the interface at the top of tee tube with The inlet of second centrifugal pump (13) is fixedly connected by conduit, and valve two (14) is fixedly installed on conduit, the second centrifugation The leakage fluid dram of pump (13) is fixedly connected with the second feed liquor interface of reaction kettle (3), and the interface of the other side of tee tube is fixedly mounted There is catheter, and is fixedly installed with valve one (12) on catheter.