A microwave drying device for pre-oxidized graphite

Abstract

The utility model discloses a pre-oxidized graphite microwave drying device, comprising a microwave cylinder, wherein a motor is provided on the top surface of the microwave cylinder, an output shaft of the motor is connected with a rotating shaft, and the rotating shaft penetrates the microwave cylinder and extends downward, and the other end of the rotating shaft is rotatably connected to the bottom wall of the microwave cylinder, a transmission mechanism is provided on the rotating shaft, a stirring mechanism is provided on the rotating shaft, an exhaust box is fixedly installed on the outer side of the microwave cylinder, an exhaust mechanism is provided in the exhaust box, and the exhaust mechanism is pushed by the transmission mechanism, an exhaust pipe is connected to the exhaust box, and the other end of the exhaust pipe is connected to the microwave cylinder, and the exhaust box is connected with an exhaust pipe. When the utility model is in use, the operation is simple, the agglomerated graphite is broken up by a stirring rod, and the graphite is evenly distributed during stirring, local overheating or overdrying is avoided, and drying efficiency is improved, and water vapor in the microwave cylinder is discharged by the exhaust box, so as to avoid water vapor accumulation in the material, thereby accelerating the drying speed.

Description

Technical Field

[0001] The utility model relates to the field of equipment related to microwave drying of pre-oxidized graphite, in particular to a microwave drying device for pre-oxidized graphite. Background Art

[0002] Pre-oxidized graphite refers to graphite that has been pre-oxidized. It is a derivative of graphene. There are a large number of oxygen-containing groups distributed on the surface and edge of the substrate, such as epoxy, hydroxyl, carboxyl, etc. These groups make the pre-oxidized graphite have good hydrophilicity and solubility in the solvent. Microwave energy can be absorbed by water molecules, causing water molecules to precipitate quickly from the inside to the outside of the pre-oxidized graphite. Compared with traditional heating methods, microwave drying has the advantages of fast speed, short time, and good uniformity. Therefore, pre-oxidized graphite can be treated by microwave drying.

[0003] When the existing pre-oxidized graphite is subjected to microwave heating, the graphite material is usually placed statically, and a large amount of moisture will cause the graphite to agglomerate, so that it takes more time to microwave the agglomerated graphite, and most of the graphite will be dried but the agglomerated graphite still contains moisture, resulting in uneven drying. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes a pre-oxidized graphite microwave drying device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pre-oxidized graphite microwave drying device comprises a microwave cylinder, a motor is provided on the top surface of the microwave cylinder, an output shaft of the motor is connected to a rotating shaft, and the rotating shaft passes through the microwave cylinder and extends downward, and the other end of the rotating shaft is rotatably connected to the bottom wall of the microwave cylinder, a transmission mechanism is provided on the rotating shaft, and a stirring mechanism is provided on the rotating shaft, an exhaust box is fixedly installed on the outside of the microwave cylinder, an exhaust mechanism is provided in the exhaust box, and the exhaust mechanism is driven by the transmission mechanism, an exhaust pipe is connected to the exhaust box, and the other end of the exhaust pipe is connected to the microwave cylinder, and the exhaust box is connected to an exhaust pipe.

[0007] Preferably, the vacuum mechanism includes a reciprocating screw, and the reciprocating screw is rotatably connected to the top wall of the vacuum box, and one end of the reciprocating screw passes through the vacuum box and extends upward, and an assembly seat is threadedly connected to the reciprocating screw, and a piston is fixedly installed on the other end of the assembly seat, and the piston is slidably connected in the vacuum box, and a baffle is fixedly installed on one end of the reciprocating screw.

[0008] Preferably, the transmission mechanism comprises two transmission wheels, one of which is mounted on one end of the rotating shaft, and the other is mounted on one end of the reciprocating screw, and a transmission belt is installed together on the two transmission wheels.

[0009] Preferably, the stirring mechanism comprises a plurality of stirring rods, and each stirring rod is fixedly mounted on the outside of the rotating shaft, and each stirring rod is rotatably connected to a rotating plate, and a plurality of through holes are formed on the rotating plate.

[0010] Preferably, both the exhaust pipe and the air extraction pipe are provided with a one-way valve.

[0011] Preferably, the top surface of the microwave cylinder is connected to a feed pipe, the bottom surface of the microwave cylinder is connected to a discharge pipe, a valve is installed on the discharge pipe, a bracket is fixedly installed on the top surface of the microwave cylinder, and the motor is fixedly installed on the top surface of the bracket.

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

[0013] 1. Start the motor to drive the shaft to rotate, and then stir the graphite through multiple stirring rods fixed on the shaft. Each stirring rod is rotatably connected to a rotating plate, and the graphite lumps are turned and broken up by the rotating plate. The through holes on the rotating plate allow small pieces of graphite to pass through in a queue to prevent the graphite from re-aggregating and agglomerating.

[0014] 2. The rotating shaft and the reciprocating screw are connected by a transmission mechanism. When the rotating shaft rotates, the reciprocating screw is driven to rotate, and then the assembly seat threadedly connected to it is driven to reciprocate, driving the piston to reciprocate, extracting the water vapor in the microwave tube and discharging it through the exhaust pipe.

[0015] In summary, the utility model is easy to operate when in use. The agglomerated graphite is broken up by a stirring rod, and the graphite is evenly distributed during stirring to avoid local overheating or overdrying, thereby improving drying efficiency. The water vapor in the microwave tube is discharged through the vacuum box to avoid water vapor accumulation in the material, thereby accelerating the drying speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a pre-oxidized graphite microwave drying device proposed by the utility model;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a pre-oxidized graphite microwave drying device proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic cross-sectional structural diagram of an exhaust box of a pre-oxidized graphite microwave drying device.

[0019] In the figure: 1 microwave cylinder, 2 discharge pipe, 3 motor, 4 transmission belt, 5 vacuum box, 6 exhaust pipe, 7 vacuum pipe, 8 transmission wheel, 9 rotating shaft, 10 stirring rod, 11 rotating plate, 12 through hole, 13 reciprocating screw, 14 assembly seat, 15 piston, 16 baffle, 17 feeding pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0021] Reference Figure 1-3 A pre-oxidized graphite microwave drying device comprises a microwave tube 1, the top surface of the microwave tube 1 is connected with a feed pipe 17, the bottom surface of the microwave tube 1 is connected with a discharge pipe 2, a valve is installed on the discharge pipe 2, the valve can control the time that the graphite stays in the microwave tube 1, so as to facilitate the control of the drying condition, a bracket is fixedly installed on the top surface of the microwave tube 1, and a motor 3 is fixedly installed on the top surface of the bracket, the top surface of the microwave tube 1 is provided with a motor 3, the output shaft of the motor 3 is connected with a rotating shaft 9, and the rotating shaft 9 passes through the microwave tube 1 and extends downward, and the other end of the rotating shaft 9 is rotatably connected to the bottom wall of the microwave tube 1, and the rotating shaft 9 is driven to rotate by the motor 3;

[0022] A transmission mechanism is provided on the rotating shaft 9, and the transmission mechanism includes two transmission wheels 8, and one transmission wheel 8 is installed at one end of the rotating shaft 9, and the other transmission wheel 8 is installed at one end of the reciprocating screw 13. The two transmission wheels 8 are jointly installed with a transmission belt 4. Through the arrangement of the two transmission wheels 8 and the transmission belt 4, when the rotating shaft 9 rotates, the reciprocating screw 13 is driven to rotate inertia;

[0023] The rotating shaft 9 is provided with a stirring mechanism, which includes a plurality of stirring rods 10, and each of which is fixedly installed on the outer side of the rotating shaft 9. Each stirring rod 10 is rotatably connected with a rotating plate 11, and a plurality of through holes 12 are opened on the rotating plate 11. The rotating shaft 9 rotates to drive the stirring rods 10 to break up the graphite. At the same time, the rotating plate 11 can flip the graphite at different upper and lower positions, and the through holes 12 can make the scattered graphite be discharged in a queue to prevent it from agglomerating again. An exhaust box 5 is fixedly installed on the outer side of the microwave tube 1;

[0024] An exhaust mechanism is provided in the exhaust box 5, and the exhaust mechanism is driven by a transmission mechanism. The exhaust mechanism includes a reciprocating screw 13, and the reciprocating screw 13 is rotatably connected to the top wall of the exhaust box 5, and one end of the reciprocating screw 13 passes through the exhaust box 5 and extends upward. A mounting seat 14 is threadedly connected to the reciprocating screw 13, and a piston 15 is fixedly installed on the other end of the mounting seat 14, and the piston 15 is slidably connected in the exhaust box 5. A baffle 16 is fixedly installed on one end of the reciprocating screw 13. The exhaust box 5 is connected to an exhaust pipe 7, and the other end of the exhaust pipe 7 is connected to the microwave tube 1. The exhaust box 5 is connected to an exhaust pipe 6, and both the exhaust pipe 6 and the exhaust pipe 7 are provided with a one-way valve. When the piston 15 moves downward, the one-way valve of the exhaust pipe 6 can pass water vapor, but the exhaust pipe 7 cannot pass. When the piston 15 moves upward, the exhaust pipe 7 can pass water vapor, but the exhaust pipe 6 cannot pass.

[0025] When the utility model is used, firstly, the graphite to be dried is input through the feeding pipe 17 provided on the microwave tube 1, and then when the material in the microwave tube 1 reaches the required requirement, the input is stopped, and then the microwave tube 1 is turned on for microwave drying, and the motor 3 is started at the same time, and the rotating shaft 9 is connected through the output shaft of the motor 3, thereby driving the rotating shaft 9 to rotate, and a plurality of stirring rods 10 are fixedly installed on the outer side of the rotating shaft 9, thereby stirring and breaking up the material in the microwave tube 1. It is worth mentioning that each stirring rod 10 is rotatably connected to a rotating plate 11, and a through hole 12 is provided on the rotating plate 11. When the stirring rod 10 rotates, the rotating plate 11 is driven to rotate around the rotating shaft 9. When the rotating plate 11 encounters a large piece of graphite agglomerate, the rotating plate 11 is hit, and then rotates around the stirring rod 10 corresponding to the position, and the graphite at the bottom is turned over by the rotating plate 11, so as to further break up the graphite. At the same time, the through hole 12 provided on the rotating plate 11 allows small pieces of graphite to pass through in a queue, so as to prevent the graphite from gathering together and agglomerating.

[0026] At the same time, when the rotating shaft 9 rotates, a transmission wheel 8 is installed on the rotating shaft 9 and the reciprocating screw 13, and the two transmission wheels 8 are jointly installed with a transmission belt 4, which drives the reciprocating screw 13 to rotate, and then drives the assembly seat 14 threaded on the reciprocating screw 13 to move. It is worth mentioning that a piston 15 is fixedly installed at one end of the assembly seat 14, and the piston 15 is slidably connected to the inner wall of the vacuum box 5, and then the assembly seat 14 is limited by the piston 15, so that it cannot rotate and can only move back and forth. At the same time, when the assembly seat 14 moves, the piston 15 is driven to move back and forth, and then the water vapor in the microwave tube 1 is extracted through the vacuum pipe 7 and discharged through the exhaust pipe 6. It should be noted that both the vacuum pipe 7 and the exhaust pipe 6 are equipped with a one-way valve. When the piston 15 moves downward, the one-way valve in the vacuum pipe 7 prevents the vacuum pipe 7 from passing water vapor. When the piston 15 moves upward, the one-way valve in the exhaust pipe 6 prevents the exhaust pipe 6 from passing water vapor.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A microwave drying device for pre-oxidized graphite, comprising a microwave tube (1), characterized in that: The top surface of the microwave tube (1) is provided with a motor (3), the output shaft of the motor (3) is connected to a rotating shaft (9), and the rotating shaft (9) penetrates the microwave tube (1) and extends downward, and the other end of the rotating shaft (9) is rotatably connected to the bottom wall of the microwave tube (1), the rotating shaft (9) is provided with a transmission mechanism, and the rotating shaft (9) is provided with a stirring mechanism, an exhaust box (5) is fixedly installed on the outside of the microwave tube (1), an exhaust mechanism is provided in the exhaust box (5), and the exhaust mechanism is driven by the transmission mechanism, the exhaust box (5) is connected to an exhaust pipe (7), and the other end of the exhaust pipe (7) is connected to the microwave tube (1), and the exhaust box (5) is connected to an exhaust pipe (6); The stirring mechanism comprises a plurality of stirring rods (10), each of which is fixedly mounted on the outside of a rotating shaft (9), and each of the stirring rods (10) is rotatably connected to a rotating plate (11), wherein the rotating plate (11) is provided with a plurality of through holes (12).

2. A pre-oxidized graphite microwave drying device according to claim 1, characterized in that: The air extraction mechanism comprises a reciprocating screw (13), and the reciprocating screw (13) is rotatably connected to the top wall of the air extraction box (5), and one end of the reciprocating screw (13) passes through the air extraction box (5) and extends upward, and a mounting seat (14) is threadedly connected to the reciprocating screw (13), and a piston (15) is fixedly installed on the other end of the mounting seat (14), and the piston (15) is slidably connected in the air extraction box (5), and a baffle (16) is fixedly installed on one end of the reciprocating screw (13).

3. A pre-oxidized graphite microwave drying device according to claim 2, characterized in that: The transmission mechanism comprises two transmission wheels (8), one of which is mounted on one end of a rotating shaft (9), and the other is mounted on one end of a reciprocating screw (13), and a transmission belt (4) is mounted on the two transmission wheels (8).

4. A pre-oxidized graphite microwave drying device according to claim 1, characterized in that: Both the exhaust pipe (6) and the exhaust pipe (7) are provided with a one-way valve.

5. A pre-oxidized graphite microwave drying device according to claim 1, characterized in that: The top surface of the microwave cylinder (1) is connected to a material delivery pipe (17), the bottom surface of the microwave cylinder (1) is connected to a material discharge pipe (2), a valve is installed on the material discharge pipe (2), a bracket is fixedly installed on the top surface of the microwave cylinder (1), and the motor (3) is fixedly installed on the top surface of the bracket.

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