Graphite high-temperature expansion furnace and use method thereof

Abstract

The invention discloses a graphite high-temperature expansion furnace and a using method thereof, and relates to the technical field of graphite expansion, the graphite high-temperature expansion furnace comprises an expansion furnace, the top of the expansion furnace is fixedly connected with a feeding hopper, the inner wall of the feeding hopper is fixedly connected with a material distributing plate, the interior of the expansion furnace is rotatably connected with a containing hopper, and a material spreading assembly is arranged in the expansion furnace; a driving assembly is arranged on the outer surface of the spreading assembly, a swing assembly is arranged at the end of the expansion furnace, and a stripping assembly is arranged on the outer surface of the expansion furnace. Graphite is shunted, the risk of blockage in the feeding port is effectively reduced, graphite to be expanded is flatly laid on the containing hopper, graphite accumulation can be prevented, graphite is heated more uniformly in the heating process, graphite intercalation compounds can be decomposed uniformly at high temperature, uniform expansion of the graphite is achieved, and the expansion rate of the graphite is increased. And meanwhile, the heat transfer efficiency can be improved, and the heat can be more effectively transferred to each piece of graphite in the expansion process, so that the energy consumption is reduced, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of graphite expansion technology, and more specifically, to a high-temperature graphite expansion furnace and its method of use. Background Technology

[0002] Graphite is an allotrope of carbon and an important type of inorganic non-metallic material. Graphite expansion refers to the process of treating natural flake graphite through intercalation, washing, drying, and high-temperature expansion to form a loose, porous, worm-like substance. Expanded graphite not only retains the excellent properties of natural graphite, such as resistance to high and low temperatures, corrosion resistance, and self-lubrication, but also requires the use of an expansion furnace in its preparation. However, existing expansion furnaces do not have the function of spreading graphite evenly when preparing expanded graphite. This causes graphite to accumulate and be heated unevenly during the heating process, which seriously affects the decomposition of graphite interlayer compounds at high temperatures. This can easily lead to inconsistent expansion due to local overheating or uneven heating. In addition, if the expanded graphite is not discharged in time, it may cause structural damage due to overheating, resulting in a reduction in the expansion ratio.

[0003] To address the aforementioned issues, a graphite high-temperature expansion furnace and its application method are proposed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, a graphite high-temperature expansion furnace and its usage method are provided. This technical solution solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention can be implemented using the following technical solutions: The present invention provides a graphite high-temperature expansion furnace, including an expansion furnace, a feeding hopper fixedly connected to the top of the expansion furnace, a material distribution plate fixedly connected to the inner wall of the feeding hopper, a holding hopper rotatably connected inside the expansion furnace, a material spreading assembly provided inside the expansion furnace, a driving assembly provided on the outer surface of the material spreading assembly, a swinging assembly provided at the end of the expansion furnace, and a peeling assembly provided on the outer surface of the expansion furnace. The material spreading assembly includes a rotating rod 1 rotatably connected inside the expansion furnace. A rotating groove is formed at the end of the rotating rod 1 away from the inner wall of the expansion furnace. A spiral groove 1 is formed inside the rotating rod 1. A drive rod 1 is movably connected inside the spiral groove 1. A sliding rod is fixedly connected to the end of the drive rod 1. A rotating rod 2 is slidably connected to the outer surface of the sliding rod. A spiral groove 2 is formed inside the rotating rod 2. A drive rod 2 is movably connected inside the spiral groove 2. Material spreading hoppers are fixedly connected to the outer surfaces of both the rotating rod 1 and the rotating rod 2. Furthermore, the feeding hopper includes a connecting rod fixedly connected to the outer surface of rotating rod one and rotating rod two. Each of the two connecting rods has three feeding hoppers at the end away from rotating rod one and rotating rod two. Adjacent feeding hoppers are connected by rotating blocks, and the feeding hoppers near the end of the connecting rod are fixedly connected to the connecting rod.

[0006] Furthermore, the rotating rod one is slidably connected to the sliding rod, the driving rod two is fixedly connected to the sliding rod, the rotating rod two is rotatably connected to the rotating groove, the rotating rod two is rotatably connected to the expansion furnace, and the spiral groove one and the spiral groove two are arranged with opposite trajectories.

[0007] Furthermore, the drive assembly includes two support plates fixedly connected to the outer surface of the expansion furnace, a crank handle rotatably connected to the end of the support plate near the rotating rod in two directions, a coil spring sleeved on the outer surface of the crank handle, and four abutment plates fixedly connected to the sides of the four feeding hoppers away from the connecting rod, and four L-shaped abutment rods fixedly connected to the top of the holding hopper.

[0008] Furthermore, the crank handle is fixedly connected to the rotating rod two, and the contact plates fixed to the sides of the feed hopper that are far from the connecting rod and adjacent to it are all fixedly connected diagonally, with four L-shaped contact rods set directly below the four contact plates.

[0009] Furthermore, the swing assembly includes a support plate fixedly connected to the end of the expansion furnace. A servo motor is fixedly connected to the end of the support plate away from the expansion furnace. A shaft is fixedly connected to the drive end of the servo motor. Two guide grooves are formed on the outer surface of the shaft. Two connecting grooves are formed at the ends of the two guide grooves on the outer surface of the shaft. A conversion rod is sleeved on the outer surface of the shaft. A conversion groove is formed on the outer surface of the rotating rod. An output rod is movably connected in the conversion groove. A slider is fixedly connected to the top of the output rod.

[0010] Furthermore, the two guide grooves are connected to the two connecting grooves, the bottom end of the output rod is movably connected to the guide grooves and connecting grooves, and a sliding groove is provided on the top of the support plate, with the slider slidingly connected to the sliding groove.

[0011] Furthermore, the stripping assembly includes a stripping tube mounted on the outer surface of the expansion furnace, with a collection box fixedly connected to the end of the stripping tube away from the expansion furnace, and a fan mounted on the top of the collection box.

[0012] A method for using a graphite high-temperature expansion furnace: Step 1: Graphite enters the expansion furnace through the feed hopper and is distributed to the feeding assembly by the distribution plate; Step 2: Rotate the drive assembly to make the material spreading assembly rotate, and spread the graphite evenly in the holding hopper; Step 3: During the graphite expansion process, the oscillating component drives the container to oscillate back and forth, increasing the contact area between the graphite and the atmosphere inside the furnace. In addition, it can also separate the unexpanded graphite from the expanded graphite. Step 4: After separating the unexpanded graphite from the expanded graphite, the stripping component is activated to remove the expanded graphite in a timely manner, ensuring the consistency of the expansion ratio and structure of the expanded graphite.

[0013] As described above, the features and advantages of the graphite high-temperature expansion furnace and its usage method in this invention are: by diverting the graphite to be expanded, the risk of graphite blockage in the feed inlet is effectively reduced, ensuring smooth material conveying and reducing downtime for cleaning due to blockage.

[0014] By spreading the graphite to be expanded evenly on the container, graphite accumulation is prevented, resulting in more uniform heating during the heating process. This also helps the intercalary compounds in the graphite decompose uniformly at high temperatures, thus achieving uniform expansion of the graphite. This avoids inconsistent expansion caused by local overheating or uneven heating. At the same time, uniformly spreading the graphite also improves heat transfer efficiency and reduces energy waste. During the expansion process, heat can be transferred more effectively to each piece of graphite, thereby reducing energy consumption and improving energy utilization efficiency.

[0015] The graphite to be expanded oscillates back and forth during the expansion process, which allows the graphite in the lower, middle and upper layers of the container to be displayed to a greater extent and increases the contact area with the furnace atmosphere. At the same time, it can also prevent the graphite from being under-expanded or over-expanded due to uneven heating. In addition, during the expansion process, the graphite that is not fully expanded can be separated from the graphite that is fully expanded, which facilitates further processing of the graphite that is not fully expanded, thereby improving the quality and performance of the expanded graphite.

[0016] The expanded graphite, separated during the reciprocating swing of the holding hopper, is sucked out by a blower. This timely removal of the expanded graphite avoids excessive expansion or structural damage caused by continued residence in the high-temperature furnace, ensuring the consistency of the expansion ratio and structure of the expanded graphite. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the graphite high-temperature expansion furnace and its usage method shown in this invention; Figure 2 This is a schematic diagram of the internal structure of the graphite high-temperature expansion furnace and its usage method shown in this invention. Figure 3 This is a schematic cross-sectional view of the graphite high-temperature expansion furnace and its usage method as shown in this invention. Figure 4This is a top view of the cross-sectional structure of rotating rod one and rotating rod two of the graphite high-temperature expansion furnace and its usage method shown in this invention. Figure 5 This is a schematic diagram of the material feeding component structure of the graphite high-temperature expansion furnace and its usage method shown in this invention; Figure 6 This is a schematic diagram of the swing assembly structure of the graphite high-temperature expansion furnace and its usage method shown in this invention. Figure 7 This is a schematic diagram of the support plate for the graphite high-temperature expansion furnace and its usage method shown in this invention. Figure 8 This is a schematic diagram of the conversion rod for the graphite high-temperature expansion furnace and its usage method shown in this invention; Figure 9 The images show top and bottom views of the shaft of the graphite high-temperature expansion furnace and its usage method as shown in this invention.

[0018] In this invention, the reference numerals are: 1. expansion furnace; 2. feed hopper; 3. material distribution plate; 4. holding hopper; Material spreading components: 51. Rotating rod one; 52. Rotating groove; 53. Spiral groove one; 54. Drive rod one; 55. Sliding rod; 56. Rotating rod two; 57. Spiral groove two; 58. Drive rod two; 59. Material spreading hopper; 510. Connecting rod; 511. Feeding hopper; 512. Rotating block; Drive components: 61. Support plate; 62. Crank handle; 63. Coil spring; 64. Abutment plate; 65. L-shaped abutment rod; Oscillating assembly: 71. Support plate; 72. Servo motor; 73. Shaft; 74. Guide groove; 75. Connecting groove; 76. Converter rod; 77. Converter groove; 78. Output rod; 79. Slider; 710. Slide groove; Stripping components: 81. Stripping tube; 82. Collection box; 83. Fan. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] See 1~ Figure 9As shown, this is an embodiment of the present invention. A graphite high-temperature expansion furnace is provided and will be described in detail below: It includes an expansion furnace 1, a feeding hopper 2 is fixedly connected to the top of the expansion furnace 1, and a material distribution plate 3 is fixedly connected to the inner wall of the feeding hopper 2. The expansion furnace 1 is characterized in that a holding hopper 4 is rotatably connected inside the expansion furnace 1. The holding hopper 4 is arranged in a semi-circular opening shape. A material spreading assembly is arranged inside the expansion furnace 1. A driving assembly is arranged on the outer surface of the material spreading assembly. A swinging assembly is arranged at the end of the expansion furnace 1. A peeling assembly is arranged on the outer surface of the expansion furnace 1. The material spreading assembly includes a rotating rod 51 rotatably connected inside the expansion furnace 1. A rotating groove 52 is provided at the end of the rotating rod 51 away from the inner wall of the expansion furnace 1. A spiral groove 53 is provided inside the rotating rod 51. A drive rod 54 is movably connected inside the spiral groove 53. A sliding rod 55 is fixedly connected to the end of the drive rod 54. A rotating rod 56 is slidably connected to the outer surface of the sliding rod 55. A spiral groove 57 is provided inside the rotating rod 56. A drive rod 58 is movably connected inside the spiral groove 57. Material spreading hoppers 59 are fixedly connected to the outer surfaces of both the rotating rod 51 and the rotating rod 56.

[0021] Furthermore, the feeding hopper 59 includes a connecting rod 510 fixedly connected to the outer surface of the rotating rod 1 51 and the rotating rod 2 56. Each of the two connecting rods 510 is provided with three feeding hoppers 511 at the end away from the rotating rod 1 51 and the rotating rod 2 56. Adjacent feeding hoppers 511 are connected by a rotating block 512. The feeding hopper 511 near the end of the connecting rod 510 is fixedly connected to the connecting rod 510.

[0022] Furthermore, rotating rod 51 is slidably connected to sliding rod 55, driving rod 58 is fixedly connected to sliding rod 55, rotating rod 56 is rotatably connected to rotating groove 52, rotating rod 56 is rotatably connected to expansion furnace 1, and spiral groove 53 and spiral groove 57 are arranged with opposite trajectories. In the initial state, driving rod 58 moves in spiral groove 57 near the end of crank handle 62, driving rod 54 moves in spiral groove 53 near the end of rotating groove 52, and the end of rotating rod 56 connected to rotating rod 51 is convex and embedded in rotating groove 52 so that rotating rod 51 and rotating rod 56 are rotatably connected through rotating groove 52.

[0023] Furthermore, the drive assembly includes two support plates 61 fixedly connected to the outer surface of the expansion furnace 1, a crank handle 62 rotatably connected to the end of the support plate 61 near the direction of the rotating rod 56, a coil spring 63 sleeved on the outer surface of the crank handle 62, and four feeding hoppers 511 away from the connecting rod 510 each having a stop plate 64 fixedly connected to their sides, and four L-shaped stop rods 65 fixedly connected to the top of the holding hopper 4.

[0024] Furthermore, the crank handle 62 is fixedly connected to the rotating rod 56. The contact plates 64, fixed to the sides of the adjacent feed hoppers 511 and away from the connecting rod 510, are diagonally fixed. Four L-shaped contact rods 65 are positioned directly below the four contact plates 64. A connecting rod 510 is fixedly connected to the outer surface of both the rotating rod 51 and the rotating rod 56. Three feed hoppers 511 are provided at the outward ends of both connecting rods 510. The feed hoppers 511 near the end of the connecting rod 510 are fixedly connected to the connecting rod 510. The remaining two feed hoppers 511 on each side are rotatably connected via rotating blocks 512. Both feeding hoppers 511 are fixedly connected to the outer side of abutment plates 64. The abutment plates 64 on the outer side of the two feeding hoppers 511 on each side are fixed diagonally. At the same time, each abutment plate 64 corresponds to an L-shaped abutment rod 65. The four L-shaped abutment rods 65 are fixedly connected to the top of the holding hopper 4, with the rotating rod 1 51 and rotating rod 2 56 as the dividing line. At the same time, the two L-shaped abutment rods 65 on each side are fixed diagonally. In this way, after the feeding hopper 59 is tilted to a certain extent, the L-shaped abutment rods 65 can block the abutment plates 64. In this way, multiple adjacent feeding hoppers 511 will open with the rotating block 512 as the center.

[0025] Furthermore, the swing assembly includes a support plate 71 fixedly connected to the end of the expansion furnace 1. A servo motor 72 is fixedly connected to the end of the support plate 71 away from the expansion furnace 1. A shaft 73 is fixedly connected to the drive end of the servo motor 72. Two guide grooves 74 are formed on the outer surface of the shaft 73. Two connecting grooves 75 are formed at the ends of the two guide grooves 74 on the outer surface of the shaft 73. A conversion rod 76 is sleeved on the outer surface of the shaft 73. A conversion groove 77 is formed on the outer surface of the rotating rod. An output rod 78 is movably connected in the conversion groove 77. A slider 79 is fixedly connected to the top end of the output rod 78.

[0026] Furthermore, the two guide grooves 74 are connected to the two connecting grooves 75. The bottom end of the output rod 78 is movably connected to the guide grooves 74 and the connecting grooves 75. The top of the support plate 71 is provided with a sliding groove 710. The slider 79 is slidably connected to the sliding groove 710. A guide groove 74 is provided above the outer surface of the shaft 73. A connecting groove 75 is also provided at the end of the shaft 73 located in the direction of the servo motor 72 in this guide groove 74. A guide groove 74 is also provided below the outer surface of the shaft 73. A connecting groove 75 is also provided at the end of this guide groove 74 away from the servo motor 72. Both guide grooves 74 are arc-shaped and their trajectories are opposite. Both connecting grooves 75 are arc-shaped and their ends are connected through the two connecting grooves 75.

[0027] Furthermore, the stripping assembly includes a stripping tube 81 mounted on the outer surface of the expansion furnace 1, with a collection box 82 fixedly connected to one end of the stripping tube 81 away from the expansion furnace 1, and a fan 83 mounted on the top of the collection box 82.

[0028] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments: The working state is as follows: First, the graphite to be expanded is poured into the feed hopper 2. The graphite to be expanded will be diverted under the action of the distribution plate 3. In this way, the graphite to be expanded will flow from the distribution plate 3 towards the bottom of the feed hopper 2 to the feeding hopper 511 on both sides of the material hopper 59. This diversion design can effectively reduce the risk of graphite clogging in the feed inlet, ensure smooth material conveying, and reduce downtime for cleaning due to blockage.

[0029] Turning the crank handle 62 causes the rotating rod 56 to rotate. During this rotation, the inner wall of the spiral groove on the inner wall of the rotating rod 56 will abut against the driving rod 58. Simultaneously, the sliding rod 55 slides within both the rotating rod 56 and the rotating rod 51, causing the driving rod 58 to move the sliding rod 55 along the trajectory of the spiral groove 57 towards the rotating rod 51. At this time, the driving rod 54, fixed to the outer surface of the sliding rod 55, will abut against the inner wall of the spiral groove 53, causing the rotating rod 51 to also rotate along the trajectory of the spiral groove 53. Since the trajectories of the spiral groove 53 and the spiral groove 57 are opposite, the rotation directions of the rotating rod 51 and the rotating rod 56 are opposite. During the process, the material hopper 59, which is fixed to the outer surface of rotating rod 1 51 and rotating rod 2 56, will also rotate inward toward the holding hopper 4. When rotating rod 1 51 and rotating rod 2 56 drive the connecting rod 510 to rotate around itself, the two connecting rods 510 and the multiple feeding hoppers 511 at their ends will all tilt around rotating rod 1 51 and rotating rod 2 56. The graphite to be expanded on the multiple feeding hoppers 511 will fall onto the holding hopper 4 from the tilting direction of the feeding hoppers 511 under the action of gravity. At this time, the graphite to be expanded will fall into the holding hopper 4 at the inner end of the two holding hoppers 4 separated by rotating rod 1 51 and rotating rod 2 56. When rotating rod 1 51 and rotating rod 2 56 rotate to a certain extent, the outermost feeding hopper 511 side will... The fixed contact plate 64 will abut against the outer surface of the L-shaped contact rod 65. At this time, the outermost feed hopper 511 will no longer tilt, so that the angle between the outermost feed hopper 511 and the adjacent middle feed hopper 511 is triangular. The graphite to be expanded will fall into the holding hopper 4 from the opening between the outermost feed hopper 511 and the middle feed hopper 511 after rotation. The dividing line is the middle position of the two holding hoppers 4 with the rotating rod 2 56 and the rotating rod 1 51 as the dividing line. Then, continue to control the rotation of the rotating rod 1 51 and the rotating rod 2 56. The contact plate 64 fixed on the side of the middle feed hopper 511 will also abut against the L-shaped contact rod 65, so that the angle between the middle feed hopper 511 and the feed hopper 511 fixed at the end away from the outermost feed hopper 511 is triangular. At this point, the graphite to be expanded will fall from the opening between the middle feed hopper 511 and the outermost feed hopper 511, fixed at one end, and into the end of the two holding hoppers 4, which are close to each other, with rotating rod 1 51 and rotating rod 2 56 as the dividing line. Furthermore, during the rotation of the crank handle 62, the coil spring 63 on its outer surface will coil up. After the graphite is laid, the crank handle 62 will reverse and reset under the action of the coil spring 63. At this time, rotating rod 2 56 will reverse, and the inner wall of its internal spiral groove 2 57 will abut against the drive rod 2 58, causing the sliding rod 55 to slide into the interior of rotating rod 2 56. During this process, drive rod 1 54 will abut against the inner wall of spiral groove 1 53, causing rotating rod 1 51 to rotate in the opposite direction to rotating rod 2 56.At this point, the rotating rod 56 and the feeding hopper 59 located on the outer surface of the rotating rod will rotate in opposite directions to a horizontally vertical state. Under the influence of gravity, the three feeding hoppers 511 on each side will return to their initial horizontally vertical state from their tilted state. This prevents graphite accumulation, ensures more uniform heating of the graphite during the heating process, and facilitates the uniform decomposition of graphite interlayer compounds at high temperatures, thereby achieving uniform expansion of the graphite. This avoids inconsistent expansion caused by localized overheating or uneven heating. Furthermore, uniform graphite distribution improves heat transfer efficiency and reduces energy waste. During expansion, heat can be more effectively transferred to each graphite sheet, thus reducing energy consumption and improving energy utilization efficiency.

[0030] After the graphite is laid, the expansion furnace 1 is started. When the internal temperature of the expansion furnace 1 reaches a certain level, the servo motor 72 is started. The drive end of the servo motor 72 drives the shaft 73 to rotate. During the rotation of the shaft 73, the inner wall of the guide groove 74 above the outer surface of the shaft 73 will abut against the output rod 78. Since the output rod 78 is slidably connected to the slide groove 710 opened on the support plate 71 through the top slider 79, when the inner wall of the guide groove 74 above the outer surface of the shaft 73 abuts against the output rod 78, the output rod 78 will drive the slider 79 to move away from the servo motor 78 within the slide groove 710. As the output rod 78 slides along one end of the motor 72, its outer surface will abut against the inner wall of the conversion groove 77. At this time, the conversion rod 76 will rotate following the trajectory of the conversion groove 77. When the output rod 78 moves to the end of the guide groove 74 above the outer surface of the shaft 73, the end of the output rod 78 will enter the connecting groove 75. The shaft 73 continues to rotate, guiding the end of the output rod 78 into the guide groove 74 below the outer surface of the shaft 73. Since the two guide grooves 74 have opposite trajectories, the output rod 78 will... The inner wall of the guide groove 74 below the outer surface of the rod 73 abuts against the slider 79, causing the slider 79 to move towards the servo motor 72 within the slide groove 710. During this movement, the outer surface of the output rod 78 abuts against the inner wall of the conversion groove 77 again, causing the conversion rod 76 to rotate in the opposite direction. Then, when the end of the output rod 78 reaches the end of the guide groove 74 below the outer surface of the shaft 73, it will enter the connecting groove 75 near the servo motor 72, and then re-enter the guide groove 74 above the outer surface of the shaft 73. This process repeats, enabling the conversion rod 76 to move in the opposite direction. The purpose of the reciprocating rotation is that, since the conversion rod 76 is fixedly connected to the holding hopper 4, the holding hopper 4 can achieve the purpose of reciprocating swing. This allows the graphite in the lower, middle and upper layers of the holding hopper 4 to be displayed to a greater extent and increases the contact area with the furnace atmosphere. At the same time, it can also prevent local graphite from being under-expanded or over-expanded due to uneven heating. In addition, during the expansion process, it can also separate the incompletely expanded graphite from the well-expanded graphite, which is convenient for further processing of the incompletely expanded graphite, thereby improving the quality and performance of the expanded graphite.

[0031] After the graphite reacts in the expansion furnace 1 for a period of time, the blower 83 is started so that the stripping pipe 81 applies a suction force to the expansion furnace 1. At this time, the expanded graphite separated during the reciprocating swing of the holding hopper 4 will be sucked into the stripping pipe 81 and transported to the collection box 82. In this way, the expanded graphite is sucked out in time, avoiding excessive expansion or structural damage caused by continuing to stay in the high-temperature furnace, and ensuring the consistency of the expansion ratio and structure of the expanded graphite.

[0032] Example 2: A method for using a graphite high-temperature expansion furnace: Step 1: Graphite enters the expansion furnace 1 through the feed hopper 2 and is distributed to the feeding assembly by the distribution plate 3; Step 2: Rotate the drive assembly to drive the material spreading assembly to rotate, and spread the graphite evenly in the holding hopper 4; Step 3: During the graphite expansion process, the oscillating assembly drives the holding hopper 4 to oscillate back and forth, increasing the contact area between the graphite and the atmosphere inside the furnace. In addition, it can also separate the unexpanded graphite from the expanded graphite. Step 4: After separating the unexpanded graphite from the expanded graphite, the stripping component is activated to remove the expanded graphite in a timely manner, ensuring the consistency of the expansion ratio and structure of the expanded graphite.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A graphite high-temperature expansion furnace, comprising an expansion furnace (1), wherein a feed hopper (2) is fixedly connected to the top of the expansion furnace (1), and a distribution plate (3) is fixedly connected to the inner wall of the feed hopper (2), characterized in that, An expansion furnace (1) is rotatably connected to a holding hopper (4), a material spreading assembly is provided inside the expansion furnace (1), a driving assembly is provided on the outer surface of the material spreading assembly, a swing assembly is provided at the end of the expansion furnace (1), and a peeling assembly is provided on the outer surface of the expansion furnace (1). The material spreading assembly includes a rotating rod 1 (51) rotatably connected inside the expansion furnace (1). A rotating groove (52) is provided at one end of the rotating rod 1 (51) away from the inner wall of the expansion furnace (1). A spiral groove 1 (53) is provided inside the rotating rod 1 (51). A drive rod 1 (54) is movably connected inside the spiral groove 1 (53). A sliding rod (55) is fixedly connected to the end of the drive rod 1 (54). A rotating rod 2 (56) is slidably connected to the outer surface of the sliding rod (55). A spiral groove 2 (57) is provided inside the rotating rod 2 (57). A drive rod 2 (58) is movably connected inside the spiral groove 2 (57). A material spreading hopper (59) is fixedly connected to the outer surfaces of both the rotating rod 1 (51) and the rotating rod 2 (56).

2. The graphite high-temperature expansion furnace according to claim 1, characterized in that: The feeding hopper (59) includes a connecting rod (510) fixedly connected to the outer surface of the rotating rod one (51) and the rotating rod two (56). Each of the two connecting rods (510) is provided with three feeding hoppers (511) at the end away from the rotating rod one (51) and the rotating rod two (56). Adjacent feeding hoppers (511) are connected by a rotating block (512). The feeding hopper (511) near the end of the connecting rod (510) is fixedly connected to the connecting rod (510).

3. The graphite high-temperature expansion furnace according to claim 2, characterized in that: Rotating rod 1 (51) is slidably connected to sliding rod (55), driving rod 2 (58) is fixedly connected to sliding rod (55), rotating rod 2 (56) is rotatably connected to rotating groove (52), rotating rod 2 (56) is rotatably connected to expansion furnace (1), and spiral groove 1 (53) and spiral groove 2 (57) are set with opposite trajectories.

4. The graphite high-temperature expansion furnace according to claim 3, characterized in that: The drive assembly includes two support plates (61) fixedly connected to the outer surface of the expansion furnace (1), a crank handle (62) rotatably connected to the end of the support plate (61) near the direction of the rotating rod (56), a coil spring (63) sleeved on the outer surface of the crank handle (62), and four feeding hoppers (511) far from the connecting rod (510) with abutment plates (64) fixedly connected to their sides, and four L-shaped abutment rods (65) fixedly connected to the top of the holding hopper (4).

5. A graphite high-temperature expansion furnace according to claim 4, characterized in that: The crank handle (62) is fixedly connected to the rotating rod (56). The abutment plates (64) that are fixed to the side of the feed hopper (511) away from the connecting rod (510) are all fixedly connected diagonally. The four L-shaped abutment rods (65) are set directly below the four abutment plates (64).

6. A graphite high-temperature expansion furnace according to claim 5, characterized in that: The swing assembly includes a support plate (71) fixedly connected to the end of the expansion furnace (1). A servo motor (72) is fixedly connected to the end of the support plate (71) away from the expansion furnace (1). A shaft (73) is fixedly connected to the drive end of the servo motor (72). Two guide grooves (74) are opened on the outer surface of the shaft (73). Two connecting grooves (75) are opened at the ends of the two guide grooves (74) on the outer surface of the shaft (73). A conversion rod (76) is sleeved on the outer surface of the shaft (73). A conversion groove (77) is opened on the outer surface of the rotating rod. An output rod (78) is movably connected in the conversion groove (77). A slider (79) is fixedly connected to the top of the output rod (78).

7. A graphite high-temperature expansion furnace according to claim 6, characterized in that: The two guide grooves (74) are connected to the two connecting grooves (75). The bottom end of the output rod (78) is movably connected to the guide grooves (74) and the connecting grooves (75). The top of the support plate (71) is provided with a sliding groove (710). The slider (79) is slidably connected to the sliding groove (710).

8. A graphite high-temperature expansion furnace according to claim 7, characterized in that: The stripping assembly includes a stripping tube (81) mounted on the outer surface of the expansion furnace (1), a collection box (82) fixedly connected to one end of the stripping tube (81) away from the expansion furnace (1), and a fan (83) mounted on the top of the collection box (82).

9. A method of using a graphite high-temperature expansion furnace, characterized in that: The method of using the graphite high-temperature expansion furnace as described in claim 8 includes the following steps: Step 1: Graphite enters the expansion furnace (1) through the feed hopper (2) and is diverted to the spreading assembly by the distribution plate (3); Step 2: Rotate the drive assembly to drive the material spreading assembly to rotate, and spread the graphite evenly in the holding hopper (4); Step 3: During the graphite expansion process, the oscillating assembly drives the container (4) to oscillate back and forth, increasing the contact area between the graphite and the furnace atmosphere. In addition, it can also separate the unexpanded graphite from the expanded graphite. Step 4: After separating the unexpanded graphite from the expanded graphite, the stripping component is activated to remove the expanded graphite in a timely manner, ensuring the consistency of the expansion ratio and structure of the expanded graphite.

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