A method for preparing graphite film

Abstract

The invention discloses a method for preparing a graphite film, and relates to the field of graphite film preparation, comprising the following steps: step one, heating a graphite film precursor, and driving an annular top cover to move upward by operation of a hydraulic cylinder, so that a cleaning component in a processing mechanism is moved out of a furnace body, and at this time, the precursor of the graphite film is placed in a high-temperature furnace; step two, cooling, after the reaction at high temperature is completed, the electric cylinder of the cooling component pushes a water storage shell into the furnace through a lifting plate and two main pipes, and at the same time drives a sealing plate to move downward; step three, cleaning, after cooling, taking out the internal product and resealing the top, so that the present application can facilitate the cleaning of accumulated scale after water evaporation, ensure the efficiency of heat exchange, and at the same time reduce the occupation of space, and clean the inner wall of the high-temperature furnace after cooling to ensure the normal operation and service life next time.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of graphite film preparation, and specifically to a method for preparing a graphite film. Background Art

[0002] Graphite film is a material with special electrochemical and physical properties. It is widely used in energy, environment, medicine and other fields. In the preparation process of graphite film, a variety of devices and equipment are required, among which high-temperature furnace is used for graphitization treatment at high temperature.

[0003] A high-temperature furnace device for an ultra-wide artificial graphite high-conductivity film described in the prior art includes a base, a high-temperature furnace body is installed on the top of the base, a heater is installed on the bottom of the base, support columns are installed at equal angles at the bottom of the base, and a protective component is installed on the outside of the base. In the present invention, after the heating is completed, the air pump is moved to the top of the first connecting pipe and a reverse current is introduced to drive a part of the nitrogen inside the cooling cylinder to pass through the inner tank, and the other part passes through the high-temperature furnace body, and the nitrogen is cooled in the cooling cylinder.

[0004] Although the above technology can dissipate heat and cool down both the inside and outside of the high-temperature furnace body at the same time, thereby accelerating the cooling speed of the high-temperature furnace body and facilitating the removal of the product, a large amount of dirt will accumulate on the inner wall of the pipe of the cooling unit due to long-term water evaporation, which will reduce the heat transfer area and reduce the efficiency of heat exchange. In addition, the overly long and curved pipes increase the difficulty of cleaning. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a method for preparing a graphite film to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A method for preparing a graphite film comprises the following steps: Step 1: The graphite film precursor is heated, and the annular top cover is driven upward by the hydraulic cylinder, so that the cleaning component in the processing mechanism is moved out of the furnace body. At this time, the graphite film precursor is placed in the high-temperature furnace and controlled to descend by the hydraulic cylinder. The sealing is achieved through the sealing plate and the annular top cover, and then the heater is operated for heating treatment; Step 2, cooling. After the reaction at high temperature is completed, the electric cylinder of the cooling component pushes the water storage shell into the furnace through the lifting plate and the two main pipes, and at the same time drives the blocking plate to move down. At this time, water enters the water storage shell through the first telescopic pipe, the water inlet main pipe and the first branch pipe to exchange heat with the high temperature in the furnace, so that the water forms water vapor and is discharged from the second branch pipe, the exhaust main pipe and the second telescopic pipe, thereby increasing the cooling speed, and the top of the water storage shell can be opened to facilitate the cleaning of the internal scale; Step 3: Cleaning: After cooling, take out the internal products and re-seal the top. At this time, the drive motor works, and the ring plate is controlled to rotate in the groove through the meshing of the gears. The ring plate drives the scraper to rotate and scrape the inner wall of the high-temperature furnace. The electric cylinder pushes the sealing plate to achieve comprehensive cleaning of the inner wall of the furnace.

[0007] The technical solution is specific. In the step three, when cleaning the inner wall of the high-temperature furnace, the cleaned dirt will fall onto the supporting plate. When the lower surface of the sealing plate is close to the supporting plate, the supporting plate is restricted by the plug-in rod and the plug-in groove, and the transmission shaft rotates through the internal thread groove to engage and fix the external thread on the fixing rod, so that when the sealing plate is subsequently moved up, it will drive the supporting plate to move up together, making it convenient to remove the fallen dirt outside the furnace.

[0008] Specifically, the high temperature furnace is provided with a bearing plate, the top opening of the high temperature furnace is provided with an annular top cover, the upper surface of the annular top cover is installed with a protective shell by bolts, and the interior of the protective shell is provided with a processing mechanism; The processing mechanism is composed of a cooling component and a cleaning component. The cooling component is used to accelerate the cooling of the high-temperature furnace, and the cleaning component is used to clean the inner wall of the high-temperature furnace after taking out the product.

[0009] The technical solution is specific, ear plates are fixed on both sides of the outer wall of the annular top cover, mounting blocks are fixed on both sides of the outer wall of the high-temperature furnace, hydraulic cylinders are installed on the upper surfaces of the two mounting blocks by bolts, the telescopic ends of the two hydraulic cylinders are fixedly connected to the lower surfaces of the ear plates, the inner ring diameter of the annular top cover is smaller than the opening diameter of the high-temperature furnace, air pipes are passed through the two mounting blocks, the two air pipes are connected to the interior of the high-temperature furnace, and valves are provided inside the two air pipes.

[0010] The technical solution is specific, the cooling component includes a lifting plate located inside the protective shell, and horizontal water inlet main pipes and exhaust main pipes are respectively provided on both sides of the lower surface of the lifting plate, and three water storage shells are evenly arranged below the water inlet main pipe and the exhaust main pipe, and the top sides of the three water storage shells are respectively connected with a first branch pipe and a second branch pipe, the three first branch pipes are all connected to the bottom of the water inlet main pipe, and the three second branch pipes are all connected to the bottom of the exhaust main pipe, and the first telescopic tube and the second telescopic tube are respectively connected at the center of the top of the water inlet main pipe and the exhaust main pipe, and the top ends of the first telescopic tube and the second telescopic tube are successively passed through the lifting plate and the top wall of the protective shell and extend to the outside.

[0011] Specifically, the three water storage shells are fixedly connected by connecting rods, the upper surfaces of the three water storage shells are located between the first branch pipe and the second branch pipe and are provided with sealing covers, and the three water storage shells are made of heat-absorbing metal.

[0012] The technical solution is specific, and the cleaning component includes a protective shell and a sealing plate. The diameter of the sealing plate is larger than the inner ring diameter of the annular top cover, the upper surface of the protective shell is fixedly connected to the lower surfaces of the three water storage shells, the outer ring wall of the sealing plate is provided with a groove along the circumference, and an annular plate with a flush outer wall is provided in the groove, and the inner ring wall of the annular plate is provided with inner teeth, and a cavity is provided in the sealing plate, one side of the cavity is connected with the groove through a through groove, and a transmission shaft is rotatably installed at the center of the cavity, and a driving wheel is fixedly sleeved on the outer wall of the transmission shaft, and a driven wheel is meshed with one side of the driving wheel, and a shaft rod is fixedly penetrated at the center of the driven wheel, and one side tooth surface of the driven wheel passes through the through groove and meshes with the inner teeth, and a plurality of scrapers are evenly fixed on the outer wall of the annular plate.

[0013] Specifically, a driving motor is installed at the center of the inner top wall of the protective shell by bolts, the top end of the transmission shaft sequentially penetrates the top wall of the sealing plate and the bottom wall of the protective shell and is connected to the output end of the driving motor, the top end of the shaft rod sequentially penetrates the top wall of the sealing plate and the bottom wall of the protective shell and is rotatably connected to the inner top wall of the protective shell, and the lower surfaces of the multiple scrapers are flush with the lower surface of the sealing plate.

[0014] Specifically, the upper and lower surfaces of the annular plate are evenly embedded with a plurality of balls, the top and bottom walls of the groove are provided with ball grooves matching the balls, and the inner wall of the protective shell is provided with a heat insulation layer.

[0015] Specifically, the bottom ends of the transmission shaft and the shaft rod pass through the bottom wall of the blocking plate and are arranged flush, and the bottom ends of the transmission shaft and the shaft rod are respectively provided with an internal thread groove and a plug-in groove, and the upper surface of the bearing plate is respectively fixed with a plug-in rod and a fixed rod, and the fixed rod is located in the center, and the plug-in rod matches the plug-in groove, and the top of the outer wall of the fixed rod is provided with an external thread, and the external thread matches the internal thread groove.

[0016] In summary, the present invention mainly has the following beneficial effects: the present invention can conveniently clean the accumulated scale after the water evaporates, ensure the efficiency of heat exchange, and at the same time can reduce the space occupied, and clean the inner wall of the high-temperature furnace after cooling, so as to ensure the normal operation and service life next time; First, the annular top cover and the protective shell are pushed upward by the hydraulic cylinder, and the protective shell drives the processing mechanism to move out of the high-temperature furnace. The precursor of the graphite film is placed in the high-temperature furnace and the hydraulic cylinder is controlled to move the annular top cover downward. The high-temperature furnace is sealed with a sealing plate, and inert gas is sent into the furnace through the air pipe. Then the heater works to perform heating treatment. After the reaction is completed at high temperature, the electric cylinder in the cooling component works to push the lifting plate downward, and the lifting plate drives the water storage shell to move out of the furnace and pushes the cleaning component to move. At this time, water enters the water storage shell through the first telescopic pipe, the water inlet main pipe and the first branch pipe, and exchanges heat with the high temperature in the furnace under the action of the heat-absorbing shell, so that the water forms steam and is discharged from the second branch pipe, the exhaust main pipe and the second telescopic pipe, thereby increasing the cooling speed, and the sealing cover on the top of the water storage shell can be opened to facilitate the cleaning of scale on the inner wall; Then, after cooling is completed, the product inside is taken out by opening the annular top cover and re-sealed. The driving motor then drives the annular plate to rotate along the groove through the active wheel and the driven wheel. The rotating annular plate drives the scraper to scrape the furnace wall of the high-temperature furnace, and the water storage shell drives the protective shell and the sealing plate to move downward under the push of the electric cylinder, so that the rotating scraper can comprehensively clean the furnace wall, and the cleaned dirt falls onto the supporting plate until the plug-in rod of the supporting plate is inserted into the plug-in groove, and the external thread of the fixing rod is screwed into the internal thread groove under the rotation of the transmission shaft, and the sealing plate and the supporting plate are driven upward by the electric cylinder to facilitate the removal of dirt from the high-temperature furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a diagram of the method steps of the present invention; Figure 2 It is a schematic diagram of a high temperature furnace of the present invention; Figure 3 It is a front view of the present invention; Figure 4 It is an overall cross-sectional view of the present invention; Figure 5 It is a cross-sectional view of the processing mechanism of the present invention; Figure 6 It is a front cross-sectional structural diagram of the present invention; Figure 7 It is an enlarged view of point A of the present invention; Figure 8 It is a top view of the annular plate of the present invention.

[0018] Description of the drawings: 1. high temperature furnace; 101. annular top cover; 102. ear plate; 103. hydraulic cylinder; 104. mounting block; 1041. air pipe; 2. protective shell; 3. bearing plate; 301. plug-in rod; 302. fixing rod; 3021. external thread; 4. processing mechanism; 5. cooling assembly; 501. electric cylinder; 502. lifting plate; 503. water inlet main pipe; 504. first branch pipe; 505. water storage shell; 5051. sealing cover; 5052. connecting rod; 5053. 06. Exhaust main pipe; 5061. Second branch pipe; 507. First telescopic tube; 508. Second telescopic tube; 6. Cleaning assembly; 601. Protective shell; 602. Sealing plate; 6021. Groove; 6022. Cavity; 603. Ring plate; 6031. Internal gear; 6032. Scraper; 6033. Ball; 604. Driving wheel; 605. Transmission shaft; 606. Driven wheel; 607. Shaft; 608. Driving motor; 7. Plug slot; 8. Internal threaded slot. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure. Example

[0021] Referring to Figures 1-8, a method for preparing a graphite film includes the following steps: Step 1: The graphite film precursor is heated. The annular top cover 101 is moved upward by the hydraulic cylinder 103, so that the cleaning assembly 6 in the processing mechanism 4 is moved out of the furnace body. At this time, the graphite film precursor is placed in the high-temperature furnace 1 and is controlled to descend by the hydraulic cylinder 103. The sealing is achieved by the sealing plate 602 and the annular top cover 101, and then the heater is operated for heating treatment; Step 2, cooling. After the reaction at high temperature is finished, the electric cylinder 501 of the cooling assembly 5 pushes the water storage shell 505 into the furnace through the lifting plate 502 and the two main pipes, and at the same time drives the blocking plate 602 to move down. At this time, water enters the water storage shell 505 through the first telescopic pipe 507, the water inlet main pipe 503 and the first branch pipe 504 to exchange heat with the high temperature in the furnace, so that the water forms water vapor and is discharged from the second branch pipe 5061, the exhaust main pipe 506 and the second telescopic pipe 508, thereby increasing the cooling speed, and the top of the water storage shell 505 can be opened to facilitate cleaning of the scale inside; Step 3: Cleaning: After cooling, take out the internal products and re-cap. At this time, the driving motor 608 works, and the ring plate 603 is controlled to rotate in the groove 6021 through the meshing of the gears. The ring plate 603 drives the scraper 6032 to rotate and scrape the inner wall of the high-temperature furnace 1, and cooperates with the electric cylinder 501 to push the blocking plate 602 to achieve comprehensive cleaning of the inner wall of the furnace; In the step three, when cleaning the inner wall of the high-temperature furnace 1, the cleaned dirt will fall onto the supporting plate 3. When the lower surface of the sealing plate 602 is close to the supporting plate 3, the supporting plate 3 is restricted by the plug-in rod 301 and the plug-in groove 7. The transmission shaft 605 rotates through the internal thread groove 8 and engages and fixes the external thread 3021 on the fixing rod 302, so that when the sealing plate 602 moves up subsequently, it will drive the supporting plate 3 to move up together, making it convenient to remove the fallen dirt outside the furnace.

[0022] The graphite film's early preparation and subsequent preparation after high temperature reaction are both based on existing technologies; The bottom of the high temperature furnace 1 in the present application is provided with a heater, and all electrical components are controlled by an external controller.

[0023] See also Figure 2-6 As shown, a bearing plate 3 is provided in the high-temperature furnace 1, an annular top cover 101 is provided at the top opening of the high-temperature furnace 1, a protective shell 2 is installed on the upper surface of the annular top cover 101 by bolts, a processing mechanism 4 is provided inside the protective shell 2, ear plates 102 are fixed on both sides of the outer wall of the annular top cover 101, mounting blocks 104 are fixed on both sides of the outer wall of the high-temperature furnace 1, hydraulic cylinders 103 are installed on the upper surfaces of the two mounting blocks 104 by bolts, and the telescopic ends of the two hydraulic cylinders 103 are fixedly connected to the lower surfaces of the ear plates 102, the inner circle diameter of the annular top cover 101 is smaller than the opening diameter of the high-temperature furnace 1, and air pipes 1041 are penetrated in the two mounting blocks 104, the two air pipes 1041 are connected to the interior of the high-temperature furnace 1, and valves are provided inside the two air pipes 1041; an end of one air pipe 1041 is connected to a storage tank of inert gas; The processing mechanism 4 is composed of a cooling component 5 and a cleaning component 6. The cooling component 5 is used to accelerate the cooling of the high-temperature furnace 1, and the cleaning component 6 is used to clean the inner wall of the high-temperature furnace 1 after taking out the product.

[0024] After the precursor of the graphite film is prepared, the staff starts the two hydraulic cylinders 103 through the controller. The telescopic ends of the two hydraulic cylinders 103 drive the annular top cover 101 and the protective shell 2 to move upward by pushing the ear plate 102. The protective shell 2 drives the processing mechanism 4 to move out of the high-temperature furnace 1. At this time, the staff puts the precursor on the supporting plate 3 in the furnace, and then re-seals the furnace mouth of the high-temperature furnace 1 through the two hydraulic cylinders 103. Then the valves in the two air pipes 1041 are opened, and the inert gas storage tank supplies gas to the interior of the high-temperature furnace 1 through the connected air pipe 1041 until the inert gas is discharged from the other air pipe 1041 and the valve is closed. Then the heater is started to heat the precursor in the high-temperature furnace 1. After the heating is completed, the driving source of the cooling component 5 works, so that the heat exchange component drives the cleaning component 6 to move downward synchronously. At this time, cold water enters the heat exchange component to exchange heat with the high temperature in the furnace, so that the water is discharged after forming steam, thereby increasing the cooling speed of the clamp. Then, after the cooling is completed and the product is taken out, the moving part of the cleaning component 6 can be moved in the high-temperature furnace 1, and the scraping part rotates to scrape the furnace wall. Finally, the scraped dirt is collected by the carrying plate 3 and connected to the cleaning component 6, and moves upward with it, so that the staff can remove the collected dirt from the high-temperature furnace 1. Therefore, the present application can conveniently clean the accumulated scale after the water evaporates, ensure the efficiency of heat exchange, reduce the space occupied, and clean the inner wall of the high-temperature furnace after cooling to ensure the normal operation and service life next time.

[0025] See also Figure 4-8 As shown, the cooling assembly 5 includes a lifting plate 502 located inside the protective shell 2, and the lower surface of the lifting plate 502 is respectively provided with a horizontal water inlet main pipe 503 and an exhaust main pipe 506 on both sides, and three water storage shells 505 are evenly arranged below the water inlet main pipe 503 and the exhaust main pipe 506. The tops of the three water storage shells 505 are respectively connected to the first branch pipe 504 and the second branch pipe 5061 on both sides, and the three first branch pipes 504 are connected to the bottom of the water inlet main pipe 503, and the three second branch pipes 5061 are connected to the bottom of the exhaust main pipe 506. The top center of the exhaust manifold 506 is connected with a first telescopic tube 507 and a second telescopic tube 508 respectively. The top ends of the first telescopic tube 507 and the second telescopic tube 508 successively penetrate the lifting plate 502 and the top wall of the protective shell 2 and extend to the outside. The three water storage shells 505 are fixedly connected by connecting rods 5052. The upper surfaces of the three water storage shells 505 are located between the first branch pipe 504 and the second branch pipe 5061 and are provided with sealing covers 5051. The three water storage shells 505 are made of heat-absorbing metal, and the end of the first telescopic tube 507 is connected to the water source storage box. The cleaning assembly 6 includes a protective shell 601 and a sealing plate 602. The diameter of the sealing plate 602 is larger than the inner diameter of the annular top cover 101. The upper surface of the protective shell 601 is fixedly connected to the lower surfaces of the three water storage shells 505. The outer wall of the sealing plate 602 is provided with a groove 6021 along the circumference. The groove 6021 is provided with an annular plate 603 with a flush outer wall. The upper and lower surfaces of the annular plate 603 are evenly embedded with a plurality of balls 6033. The top and bottom walls of the groove 6021 are provided with ball grooves matching the balls 6033. The inner wall of the protective shell 601 is provided with a heat insulation layer. The inner wall of the annular plate 603 is provided with an inner tooth 6031. A cavity 6022 is provided in the sealing plate 602. One side of the cavity 6022 is connected with the groove 6021 through a through groove. The center of the cavity 6022 rotates A transmission shaft 605 is installed, and a driving wheel 604 is fixedly sleeved on the outer wall of the transmission shaft 605. A driven wheel 606 is meshed on one side of the driving wheel 604. A shaft rod 607 is fixedly penetrated at the center of the driven wheel 606. The tooth surface of one side of the driven wheel 606 passes through the groove and is meshed and connected with the inner track tooth 6031. A plurality of scrapers 6032 are evenly fixed on the outer wall of the annular plate 603. A driving motor 608 is installed at the center of the inner top wall of the protective shell 601 by bolts. The top end of the transmission shaft 605 penetrates the top wall of the blocking plate 602 and the bottom wall of the protective shell 601 in turn and is connected to the output end of the driving motor 608. The top end of the shaft rod 607 penetrates the top wall of the blocking plate 602 and the bottom wall of the protective shell 601 in turn and is rotatably connected to the inner top wall of the protective shell 601. The lower surfaces of the plurality of scrapers 6032 are flush with the lower surface of the blocking plate 602. The bottom ends of the transmission shaft 605 and the shaft rod 607 penetrate the bottom wall of the blocking plate 602 and are arranged flush. The bottom ends of the transmission shaft 605 and the shaft rod 607 are respectively provided with an internal thread groove 8 and a plug-in groove 7. The upper surface of the supporting plate 3 is respectively fixed with a plug-in rod 301 and a fixed rod 302. The fixed rod 302 is located in the center. The plug-in rod 301 matches the plug-in groove 7. The top of the outer wall of the fixed rod 302 is provided with an external thread 3021, and the external thread 3021 matches the internal thread groove 8.

[0026] During cooling, the electric cylinder 501 is started by the controller, and the telescopic end of the electric cylinder 501 pushes the lifting plate 502 downward, and the lifting plate 502 stretches the first telescopic tube 507 and the second telescopic tube 508, and pushes the three water storage shells 505 downward through the water inlet main pipe 503, the first branch pipe 504, the exhaust main pipe 506 and the second branch pipe 5061. The water storage shell 505 pushes the blocking plate 602 downward through the protective shell 601, so that the water storage shell 505 enters the interior of the high-temperature furnace 1 through the inner circle of the annular top cover 101. At this time, cold water enters the water inlet main pipe 503 through the first telescopic tube 507, and The water enters the water storage shell 505 from the three first branch pipes 504 respectively, absorbs the high temperature in the furnace under the action of the heat absorbing material and exchanges heat with the cold water inside, so that the water is discharged from the second branch pipe 5061, the exhaust main pipe 506 and the second telescopic pipe 508 after forming steam, thereby increasing the cooling speed in the furnace. At the same time, the vertical arrangement can reduce the space occupancy rate, and after a period of time, the protective shell 2 is removed from the annular top cover 101, and the electric cylinder 501 is separated from the protective shell 2, and the scale attached to the inner wall of the water storage shell 505 is cleaned by opening the sealing cover 5051; After the cooling is completed and the product is taken out, the staff starts the driving motor 608 through the controller. The output end of the driving motor 608 drives the transmission shaft 605 to rotate, the transmission shaft 605 drives the driving wheel 604 to rotate, the driving wheel 604 drives the meshing driven wheel 606 to rotate, and the driven wheel 606 drives the annular plate 603 to rotate in the groove 6021 through the meshing internal track teeth 6031. During the movement of the annular plate 603, the ball 6033 along the ball groove can reduce the friction and prevent the annular plate 603 from being separated from the groove 6021. The moving annular plate 603 drives the scraper 6032 to move along the furnace wall to scrape off the attached dirt. At this time, the electric cylinder 501 works by storing The water shell 505 and the protective shell 601 push the blocking plate 602 downward, and cooperate with the scraper 6032 to comprehensively scrape the furnace wall. The scraped dirt falls on the bearing plate 3 until the plug-in rod 301 of the bearing plate 3 is inserted into the plug-in groove 7 at the bottom end of the shaft rod 607, and the external thread 3021 of the fixing rod 302 is screwed into the internal thread groove 8 under the rotation of the transmission shaft 605, completing the connection between the bearing plate 3 and the blocking plate 602. Finally, when the blocking plate 602 is driven upward by the telescopic end of the electric cylinder 501, it will also drive the bearing plate 3 upward, and cooperate with the hydraulic cylinder 103 to move the annular top cover 101 upward to expose the bearing plate 3 at the top of the furnace mouth, so that the staff can clean the collected dirt out of the furnace.

[0027] The working principle of the present invention is: After the precursor of the graphite film is prepared, the staff starts the two hydraulic cylinders 103 through the controller. The telescopic ends of the two hydraulic cylinders 103 drive the annular top cover 101 and the protective shell 2 to move upward by pushing the ear plate 102. The protective shell 2 drives the processing mechanism 4 to move out of the high-temperature furnace 1. At this time, the staff puts the precursor on the supporting plate 3 in the furnace, and then re-seals the furnace mouth of the high-temperature furnace 1 through the two hydraulic cylinders 103. Then the valves in the two air pipes 1041 are opened, and the inert gas storage tank supplies gas to the interior of the high-temperature furnace 1 through the connected air pipe 1041 until the inert gas is discharged from the other air pipe 1041 and the valve is closed. Then the heater is started to heat the precursor in the high-temperature furnace 1. After the heating is completed, the electric cylinder 501 is started by the controller, and the telescopic end of the electric cylinder 501 pushes the lifting plate 502 downward. The lifting plate 502 stretches the first telescopic tube 507 and the second telescopic tube 508, and pushes the three water storage shells 505 downward through the water inlet main pipe 503, the first branch pipe 504, the exhaust main pipe 506 and the second branch pipe 5061. The water storage shell 505 pushes the blocking plate 602 downward through the protective shell 601, so that the water storage shell 505 enters the interior of the high-temperature furnace 1 through the inner circle of the annular top cover 101. At this time, cold water enters the water inlet main pipe 503 through the first telescopic tube 507, and enters the water storage shell 505 from the three first branch pipes 504 respectively. Under the action of the heat-absorbing material, the high temperature in the furnace is absorbed and heat is exchanged with the internal cold water, so that the water is discharged from the second branch pipe 5061, the exhaust main pipe 506 and the second telescopic tube 508 after forming steam. Then, after the cooling is completed, the product is taken out. The staff starts the driving motor 608 through the controller, and the output end of the driving motor 608 drives the transmission shaft 605 to rotate, and the transmission shaft 605 drives the driving wheel 604 to rotate, and the driving wheel 604 drives the meshing driven wheel 606 to rotate, and the driven wheel 606 drives the annular plate 603 to rotate in the groove 6021 through the meshing inner track teeth 6031. During the movement of the annular plate 603, the ball 6033 along the ball groove can reduce the friction and prevent the annular plate 603 from being separated from the groove 6021. The moving annular plate 603 drives the scraper 6032 to move along the furnace wall to scrape off the attached dirt. At this time, the electric cylinder 501 works through the water storage shell 505 and The protective shell 601 pushes the blocking plate 602 downward, and cooperates with the scraper 6032 to scrape the furnace wall comprehensively. The scraped dirt falls on the supporting plate 3 until the plug-in rod 301 of the supporting plate 3 is inserted into the plug-in groove 7 at the bottom end of the shaft rod 607, and the external thread 3021 of the fixing rod 302 is screwed into the internal thread groove 8 under the rotation of the transmission shaft 605, completing the connection between the supporting plate 3 and the blocking plate 602. Finally, when the blocking plate 602 is driven upward by the telescopic end of the electric cylinder 501, it will also drive the supporting plate 3 upward, and cooperate with the hydraulic cylinder 103 to move the annular top cover 101 upward to expose the supporting plate 3 at the top of the furnace mouth, so that the staff can clean the collected dirt out of the furnace.

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A method for preparing a graphite film, characterized in that , including the following steps: Step 1: The graphite film precursor is heated, and the annular top cover (101) is moved upward by the hydraulic cylinder (103), so that the cleaning component (6) in the processing mechanism (4) is moved out of the furnace body. At this time, the graphite film precursor is placed in the high-temperature furnace (1) and is controlled to descend by the hydraulic cylinder (103). The sealing is achieved by the sealing plate (602) and the annular top cover (101), and then the heater is operated to perform heating treatment; Step 2, cooling. After the reaction at high temperature is completed, the electric cylinder (501) of the cooling component (5) works to push the water storage shell (505) into the furnace through the lifting plate (502) and the two main pipes, and at the same time drives the blocking plate (602) to move downward. At this time, water enters the water storage shell (505) through the first telescopic pipe (507), the water inlet main pipe (503) and the first branch pipe (504) to exchange heat with the high temperature in the furnace, so that the water forms water vapor and is discharged from the second branch pipe (5061), the exhaust main pipe (506) and the second telescopic pipe (508), thereby increasing the cooling speed. In addition, the top of the water storage shell (505) can be opened to facilitate cleaning of the scale inside. Step 3: Cleaning. After cooling, the internal product is taken out and the top is resealed. At this time, the drive motor (608) works, and the ring plate (603) is controlled to rotate in the groove (6021) through the meshing of the gears. The ring plate (603) drives the scraper (6032) to rotate and scrape the inner wall of the high-temperature furnace (1), and cooperates with the electric cylinder (501) to push the sealing plate (602) to achieve comprehensive cleaning of the inner wall of the furnace.

2. The method for preparing a graphite film according to claim 1, characterized in that: In the step three, when cleaning the inner wall of the high-temperature furnace (1), the cleaned dirt will fall onto the supporting plate (3). When the lower surface of the blocking plate (602) approaches the supporting plate (3), the supporting plate (3) is restricted by the plug-in rod (301) and the plug-in groove (7), and the transmission shaft (605) rotates through the internal thread groove (8) to engage and fix the external thread (3021) on the fixing rod (302), so that when the blocking plate (602) moves up later, it will drive the supporting plate (3) to move up together, so that the fallen dirt can be easily removed from the furnace.

3. The method for preparing a graphite film according to claim 1, characterized in that: The high temperature furnace (1) is provided with a bearing plate (3), the top opening of the high temperature furnace (1) is provided with an annular top cover (101), the upper surface of the annular top cover (101) is mounted with a protective shell (2) by means of bolts, and the interior of the protective shell (2) is provided with a processing mechanism (4); The processing mechanism (4) is composed of a cooling component (5) and a cleaning component (6), wherein the cooling component (5) is used to accelerate the cooling of the high-temperature furnace (1), and the cleaning component (6) is used to clean the inner wall of the high-temperature furnace (1) after the product is taken out.

4. The method for preparing a graphite film according to claim 3, characterized in that: Ear plates (102) are fixed on both sides of the outer wall of the annular top cover (101), mounting blocks (104) are fixed on both sides of the outer wall of the high-temperature furnace (1), hydraulic cylinders (103) are mounted on the upper surfaces of the two mounting blocks (104) by means of bolts, the telescopic ends of the two hydraulic cylinders (103) are fixedly connected to the lower surfaces of the ear plates (102), the inner diameter of the annular top cover (101) is smaller than the opening diameter of the high-temperature furnace (1), air pipes (1041) are passed through the two mounting blocks (104), the two air pipes (1041) are connected to the interior of the high-temperature furnace (1), and valves are arranged inside the two air pipes (1041).

5. The method for preparing a graphite film according to claim 3, characterized in that: The cooling assembly (5) comprises a lifting plate (502) located inside the protective shell (2), and a transverse water inlet main pipe (503) and an exhaust main pipe (506) are respectively provided on both sides of the lower surface of the lifting plate (502), and three water storage shells (505) are evenly arranged below the water inlet main pipe (503) and the exhaust main pipe (506), and the tops of the three water storage shells (505) are respectively connected to the first branch pipe (504) and the second branch pipe (5061). The pipes (504) are all connected to the bottom of the water inlet main pipe (503), and the three second branch pipes (5061) are all connected to the bottom of the exhaust main pipe (506). The water inlet main pipe (503) and the exhaust main pipe (506) are respectively connected to the first telescopic pipe (507) and the second telescopic pipe (508) at the center of the top. The top ends of the first telescopic pipe (507) and the second telescopic pipe (508) successively penetrate the lifting plate (502) and the top wall of the protective shell (2) and extend to the outside.

6. The method for preparing a graphite film according to claim 5, characterized in that: The three water storage shells (505) are fixedly connected to each other via a connecting rod (5052); the upper surfaces of the three water storage shells (505) are located between the first branch pipe (504) and the second branch pipe (5061) and are provided with sealing covers (5051); and the three water storage shells (505) are made of heat-absorbing metal.

7. The method for preparing a graphite film according to claim 5, characterized in that: The cleaning assembly (6) comprises a protective shell (601) and a blocking plate (602); the diameter of the blocking plate (602) is larger than the inner diameter of the annular top cover (101); the upper surface of the protective shell (601) is fixedly connected to the lower surfaces of the three water storage shells (505); the outer wall of the blocking plate (602) is provided with a groove (6021) along the circumference; an annular plate (603) with a flush outer wall is provided in the groove (6021); the inner wall of the annular plate (603) is provided with inner teeth (6031); the blocking plate (602) is provided with a cavity (6022); One side of the cavity (6022) is connected to the groove (6021) through a through groove, a transmission shaft (605) is rotatably mounted at the center of the cavity (6022), a driving wheel (604) is fixedly sleeved on the outer wall of the transmission shaft (605), a driven wheel (606) is meshed on one side of the driving wheel (604), a shaft (607) is fixedly penetrated at the center of the driven wheel (606), a tooth surface on one side of the driven wheel (606) passes through the through groove and is meshed with the inner track teeth (6031), and a plurality of scrapers (6032) are evenly fixed on the outer wall of the annular plate (603).

8. The method for preparing a graphite film according to claim 7, characterized in that: A driving motor (608) is installed at the center of the inner top wall of the protective shell (601) by means of bolts; the top end of the transmission shaft (605) sequentially penetrates the top wall of the blocking plate (602) and the bottom wall of the protective shell (601) and is connected to the output end of the driving motor (608); the top end of the shaft rod (607) sequentially penetrates the top wall of the blocking plate (602) and the bottom wall of the protective shell (601) and is rotatably connected to the inner top wall of the protective shell (601); and the lower surfaces of the plurality of scrapers (6032) are flush with the lower surface of the blocking plate (602).

9. The method for preparing a graphite film according to claim 7, characterized in that: A plurality of balls (6033) are evenly embedded on the upper and lower surfaces of the annular plate (603), the top and bottom walls of the groove (6021) are provided with ball grooves matching the balls (6033), and the inner wall of the protective shell (601) is provided with a heat insulation layer.

10. The method for preparing a graphite film according to claim 7, characterized in that: The bottom ends of the transmission shaft (605) and the shaft rod (607) both penetrate the bottom wall of the blocking plate (602) and are arranged flush with each other. The bottom ends of the transmission shaft (605) and the shaft rod (607) are respectively provided with an internal thread groove (8) and a plug-in groove (7). The upper surface of the bearing plate (3) is respectively fixed with a plug-in rod (301) and a fixed rod (302). The fixed rod (302) is located at the center. The plug-in rod (301) matches the plug-in groove (7). The top of the outer wall of the fixed rod (302) is provided with an external thread (3021). The external thread (3021) matches the internal thread groove (8).

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