Drying machine for graphene

Abstract

The utility model relates to the technical field of graphene production, in particular to a drying machine for graphene, which comprises a box body and a conveying belt arranged in the box body close to the top, a heating pipe is arranged on the outer side of the conveying belt, and two ends of the heating pipe are fixedly connected to the inner wall of the box body. A first funnel is arranged on one side of the top of the conveying belt, and a rolling device is arranged on the side, close to the first funnel, of the top of the conveying belt. The graphene drying device has the advantages that graphene is flattened through the scraping plate and then rolled through the roller, so that the graphene is flattened more flatly, the graphene is heated through the heating pipe, primary drying can be more effectively conducted, uneven drying and graphene entering the barrel are avoided, the graphene is pushed to move by stirring the scraping plate, the barrel is communicated with the gas circulating device, and the graphene drying effect is improved. And the air is driven by the fan blades to be heated by the heating pipe, and the heated hot air enters the round barrel again and is recycled, so that the graphene can be effectively dried, and the drying efficiency is integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphene production, in particular to a drying machine for graphene. Background Art

[0002] Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms in a hexagonal honeycomb lattice with sp2 hybrid orbitals. Graphene has excellent optical, electrical and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine and drug delivery. It is considered to be a revolutionary material in the future. In the production process of graphene, graphene needs to be dried to remove moisture from graphene and improve its quality and stability.

[0003] A graphene production dryer disclosed in Chinese patent CN220489602U can drive a slide plate to move up and down in a side groove through cyclic intermittent meshing of a first tooth and a second tooth, and can vibrate and turn over the graphene powder on the surface of the slide plate through the elastic force of a connecting spring, so that the graphene powder can be fully dried, and the heating temperature of the electric heating plate is adjusted by a temperature regulator, and the fan blades are driven to rotate by a driving motor to distribute the hot air on the surface of the graphene powder, thereby improving the drying quality of the graphene powder. However, while solving the problem, this type of graphene production dryer has the following disadvantages: the existing graphene needs to be processed by chemical vapor deposition, oxidation-reduction method, liquid phase stripping method, etc. before drying, and the state of the graphene produced by these processing methods is not fixed, but is a slurry, film or flake, etc., so the existing equipment will have problems of low drying efficiency and uneven drying during the drying process. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a graphene drying machine.

[0005] The purpose of the utility model is achieved through the following technical solutions: a graphene drying machine, comprising a box body and a conveyor belt arranged near the top of the box body, a heating pipe is arranged on the outside of the conveyor belt, and both ends of the heating pipe are fixedly connected to the inner wall of the box body, a first funnel is arranged on one side of the top of the conveyor belt, a roller pressing device is arranged on one side of the top of the conveyor belt close to the first funnel, a second funnel is arranged on one side of the bottom of the conveyor belt, a barrel is fixedly connected to one side of the bottom of the second funnel, a stirring device is arranged inside the barrel, a gas circulation device is arranged on one side of the barrel, and one end of the gas circulation device passes through the heating pipe and is fixedly connected to the second funnel;

[0006] The rolling device includes a fixed frame, two of the fixed frames are symmetrically arranged on both sides of the inner wall of the box, a scraper is movably connected between the two fixed frames, a through groove is opened on one side of the two fixed frames, spring blocks are fixedly connected in the two through grooves, and a roller is rotatably connected between the two spring blocks.

[0007] Preferably, one end of the first funnel passes through the box and extends into the interior of the box, a first motor is provided on one side of the conveyor belt, the first motor is fixedly connected to the inner wall of the box, and the bottom of the barrel is fixedly connected to the bottom side of the inside of the box.

[0008] Preferably, the stirring device includes a rotating rod, both ends of which pass through the barrel and are rotatably connected to both sides of the inner wall of the box body, one end of the rotating rod is fixedly connected to a first gear, one side of the first gear is meshed with a second gear, the second gear is installed on the power output end of a second motor, one side of the second motor is fixedly connected to one side of the interior of the box body, a stirring scraper is fixedly sleeved on the wall surface of the rotating rod, and a plurality of the stirring scrapers are linearly arrayed on the rotating rod.

[0009] Preferably, the gas circulation device includes a connecting pipe, one end of the connecting pipe is fixedly connected to the second funnel, the other end of the connecting pipe is fixedly connected to one end of the barrel, the interior of the connecting pipe is fixedly connected to a support frame, the support frame is fixedly connected to a fan blade, and one end of the support frame passes through the connecting pipe and is fixedly connected to the third motor.

[0010] Preferably, both ends of the scraper are movably connected in grooves provided on the two fixing frames, a plurality of protruding rods are provided at the bottom of the scraper, and a guide plate is symmetrically fixedly connected to one side of the scraper close to the first funnel.

[0011] Preferably, a closing plate is rotatably connected to one side of the drum, and a locking armrest is provided on one side of the top of the closing plate.

[0012] Beneficial effects:

[0013] By setting a rolling device and a heating tube, a scraper is used to flatten the graphene that falls onto the conveyor belt, and then the roller set between the two spring blocks is used to roll it to make it flatter. The graphene is heated by the heating tube, which can more effectively carry out preliminary drying to avoid uneven drying. The graphene enters the barrel through the second funnel, and the stirring scraper of the stirring device rotates in the barrel to push the graphene to move in the barrel. The barrel is connected to a gas circulation device, and the gas is driven by the fan blades to pass through the heating tube for heating. The heated hot air enters the barrel through the connecting pipe and is circulated, which can effectively further dry the graphene and improve the overall drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the stirring device in the second state of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure inside the box of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the roller pressing device of the utility model;

[0019] Figure 5 It is a schematic diagram of the cutaway structure of the drum and the gas circulation device of the utility model.

[0020] In the figure: 1. box body; 2. conveyor belt; 3. first funnel; 4. second funnel; 5. drum; 6. stirring device; 601. rotating rod; 602. first gear; 603. second gear; 604. second motor; 605. stirring scraper; 7. heating tube; 8. gas circulation device; 801. connecting pipe; 802. supporting frame; 803. fan blade; 804. third motor; 9. rolling device; 901. fixing frame; 902. scraper; 903. through groove; 904. spring block; 905. roller; 10. first motor; 11. closing plate; 12. locking armrest. DETAILED DESCRIPTION

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0024] like Figure 1-5As shown, a graphene drying machine comprises a box body 1 and a conveyor belt 2 arranged near the top of the box body 1, a heating tube 7 is arranged on the outer side of the conveyor belt 2, and both ends of the heating tube 7 are fixedly connected to the inner wall of the box body 1, a first funnel 3 is arranged on one side of the top of the conveyor belt 2, a roller pressing device 9 is arranged on one side of the top of the conveyor belt 2 near the first funnel 3, a second funnel 4 is arranged on one side of the bottom of the conveyor belt 2, a barrel 5 is fixedly connected to one side of the bottom of the second funnel 4, a stirring device 6 is arranged inside the barrel 5, a gas circulation device 8 is arranged on one side of the barrel 5, and one end of the gas circulation device 8 passes through the heating tube 7 and is fixedly connected to the second funnel 4; the roller pressing device 9 comprises A fixed frame 901, two fixed frames 901 are symmetrically arranged on both sides of the inner wall of the box body 1, a scraper 902 is movably connected between the two fixed frames 901, a through groove 903 is opened on one side of the two fixed frames 901, and spring blocks 904 are fixedly connected in the two through grooves 903. A roller 905 is rotatably connected between the two spring blocks 904. By setting a rolling device 9 and a heating tube 7, the scraper 902 is used to flatten the graphene falling onto the conveyor belt 2, and then it is rolled by the roller 905 set between the two spring blocks 904 to make it flatter. The graphene is heated by the heating tube 7, which can more effectively carry out preliminary drying and avoid uneven drying.

[0025] One end of the first funnel 3 penetrates the box body 1 and extends into the interior of the box body 1 . A first motor 10 is provided on one side of the conveyor belt 2 . The first motor 10 is fixedly connected to the inner wall of the box body 1 . The bottom of the barrel 5 is fixedly connected to the bottom side of the box body 1 .

[0026] The stirring device 6 includes a rotating rod 601, both ends of which penetrate the barrel 5 and are rotatably connected to the two sides of the inner wall of the box body 1. One end of the rotating rod 601 is fixedly connected to the first gear 602, and one side of the first gear 602 is meshed with the second gear 603. The second gear 603 is installed on the power output end of the second motor 604, and one side of the second motor 604 is fixedly connected to one side of the inside of the box body 1. A stirring scraper 605 is fixedly sleeved on the wall surface of the rotating rod 601. Multiple stirring scrapers 605 are linearly arrayed on the rotating rod 601. One end of the stirring scraper 605 slides with the inner wall of the barrel 5, thereby scraping the graphene attached to the inner wall of the barrel 5.

[0027] The gas circulation device 8 includes a connecting pipe 801, one end of which is fixedly connected to the second funnel 4, and the other end of the connecting pipe 801 is fixedly connected to one end of the barrel 5. The interior of the connecting pipe 801 is fixedly connected to a support frame 802, and the support frame 802 is fixedly connected to a fan blade 803. One end of the support frame 802 passes through the connecting pipe 801 and is fixedly connected to a third motor 804. Graphene enters the barrel 5 through the second funnel 4, and the stirring scraper 605 of the stirring device 6 rotates in the barrel 5 to push the graphene to move in the barrel 5. The barrel 5 is connected to the gas circulation device 8, and the gas is driven by the fan blade 803 to pass through the heating tube 7 for heating, and then re-enters the barrel 5 for recycling, which can effectively further dry the graphene and effectively improve the drying efficiency.

[0028] The two ends of the scraper 902 are movably connected in the grooves provided on the two fixing frames 901 , a plurality of protruding rods are provided at the bottom of the scraper 902 , and a guide plate is symmetrically fixedly connected to one side of the scraper 902 close to the first funnel 3 .

[0029] A closing plate 11 is rotatably connected to one side of the drum 5 , and a locking armrest 12 is provided on one side of the top of the closing plate 11 .

[0030] The working process is as follows:

[0031] S1, start the first motor 10 to operate the conveyor belt 2, start the third motor 804 to rotate the fan blade 803 on the support frame 802, start the second motor 604 to rotate the rotating rod 601 of the stirring device 6, start the heating tube 7, the graphene first enters from the first funnel 3, falls onto the conveyor belt 2 in the box body 1 and moves, the graphene will first contact the scraper 902 of the rolling device 9, and the convex rod at the bottom of the scraper 902 is used to smooth it, the two guide plates set on one side of the scraper 902 can limit the diffusion of the graphene, the graphene continues to move forward, the roller 905 set on the fixed frame 901 applies rolling pressure to the graphene through the elastic force of the spring block 904, and the graphene continues to move through the conveyor belt 2;

[0032] S2, the graphene is heated and dried by the heating tube 7 surrounding the outer side of the conveyor belt 2, and the graphene after preliminary drying will fall into the second funnel 4 and enter the barrel 5;

[0033] S3, the second motor 604 drives the second gear 603 to rotate, and the second gear 603 drives the first gear 602 and the rotating rod 601 to rotate. Because the rotating rod 601 passes through both ends of the barrel 5 and is rotatably connected to the inner wall of the box body 1, the rotating rod 601 drives the stirring scraper 605 to rotate in the barrel 5, and one end of the stirring scraper 605 contacts the inner wall of the barrel (5) to move, thereby pushing the graphene to move in the barrel 5;

[0034] S4. Because one end of the barrel 5 is connected to the connecting pipe 801, and the other end of the connecting pipe 801 is connected to the second funnel 4, the hot air is pushed to flow in the barrel 5 by the rotation of the fan blade 803 to accelerate the drying of the graphene;

[0035] S5. After the graphene is dried, the motor and the heating tube 7 on the device are stopped, and the locking armrest 12 is rotated to rotate one end of the closing plate 11 on the barrel 5, so as to open the barrel 5 and take out the graphene.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A graphene drying machine, characterized in that: It comprises a box body (1) and a conveyor belt (2) arranged near the top of the box body (1), a heating pipe (7) is arranged on the outside of the conveyor belt (2), both ends of the heating pipe (7) are fixedly connected to the inner wall of the box body (1), a first funnel (3) is arranged on one side of the top of the conveyor belt (2), a roller pressing device (9) is arranged on one side of the top of the conveyor belt (2) near the first funnel (3), a second funnel (4) is arranged on one side of the bottom of the conveyor belt (2), a round barrel (5) is fixedly connected to one side of the bottom of the second funnel (4), a stirring device (6) is arranged inside the round barrel (5), a gas circulation device (8) is arranged on one side of the round barrel (5), and one end of the gas circulation device (8) passes through the heating pipe (7) and is fixedly connected to the second funnel (4); The rolling device (9) comprises a fixed frame (901), wherein two fixed frames (901) are symmetrically arranged on both sides of the inner wall of the box body (1), a scraper (902) is movably connected between the two fixed frames (901), a through groove (903) is opened on one side of the two fixed frames (901), spring blocks (904) are fixedly connected in the two through grooves (903), and a roller (905) is rotatably connected between the two spring blocks (904).

2. A graphene drying machine according to claim 1, characterized in that: One end of the first funnel (3) passes through the box (1) and extends into the interior of the box (1); a first motor (10) is provided on one side of the conveyor belt (2); the first motor (10) is fixedly connected to the inner wall of the box (1); and the bottom of the barrel (5) is fixedly connected to the bottom side of the box (1).

3. A graphene drying machine according to claim 1, characterized in that: The stirring device (6) comprises a rotating rod (601), both ends of which penetrate the drum (5) and are rotatably connected to the two sides of the inner wall of the box body (1), one end of the rotating rod (601) is fixedly connected to a first gear (602), one side of the first gear (602) is meshed with a second gear (603), the second gear (603) is mounted on the power output end of a second motor (604), one side of the second motor (604) is fixedly connected to one side of the inside of the box body (1), a stirring scraper (605) is fixedly sleeved on the wall surface of the rotating rod (601), and a plurality of stirring scrapers (605) are linearly arrayed on the rotating rod (601).

4. A graphene drying machine according to claim 1, characterized in that: The gas circulation device (8) comprises a connecting pipe (801), one end of which is fixedly connected to the second funnel (4), and the other end of which is fixedly connected to one end of the barrel (5); a support frame (802) is fixedly connected to the interior of the connecting pipe (801), a fan blade (803) is fixedly connected to the support frame (802), and one end of the support frame (802) passes through the connecting pipe (801) and is fixedly connected to a third motor (804).

5. A graphene drying machine according to claim 1, characterized in that: The two ends of the scraper (902) are movably connected in grooves provided on the two fixing frames (901); a plurality of protruding rods are provided at the bottom of the scraper (902); and a guide plate is symmetrically fixedly connected to one side of the scraper (902) close to the first funnel (3).

6. A graphene drying machine according to claim 1, characterized in that: A closing plate (11) is rotatably connected to one side of the drum (5), and a locking handrail (12) is provided on one side of the top of the closing plate (11).

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