Carbon fiber activation furnace

Abstract

The utility model relates to carbon fiber preparation technical field discloses a kind of carbon fiber activation furnace, including base, the one side of base is rotatably installed with heating furnace bottom, the top of heating furnace bottom is hingedly installed with furnace cover, and the middle part of material pipe assembly is located inside heating cavity between the both sides of heating furnace bottom rotatably installed with material pipe assembly.The carbon fiber activation furnace, by integrating automatic feeding component bunker and discharging mechanism, can be realized in the case where not stopping furnace, not cooling down to carry out feeding operation, promote feeding, activation treatment, seamless link of discharging process, form complete continuous production line, greatly improve the utilization of equipment and production efficiency, capacity is multiplied, and, entire feeding process does not need artificial direct intervention, fundamentally solve the artificial operation problem under high temperature environment, save manpower cost, and guarantee the safety and health of staff, eliminate the corresponding security risks.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber preparation technology, and in particular to a carbon fiber activation furnace. Background Technology

[0002] In the field of carbon fiber production, the carbon fiber activation furnace is a crucial piece of equipment. Its function is to perform high-temperature activation treatment on carbon fibers to impart specific surface properties and physicochemical properties, thereby meeting the diverse performance requirements of different industries. With the continuous expansion of carbon fiber applications, many fields such as aerospace, automotive manufacturing, and sporting goods are placing higher demands on the quality and quantity of carbon fibers, which has spurred the continuous development and improvement of carbon fiber activation furnace technology.

[0003] Most carbon fiber activation furnaces on the market currently rely heavily on manual labor for loading and unloading operations. Intermittent manual loading and unloading is not only labor-intensive but also inefficient. Each loading and unloading operation involves heating and cooling cycles of the furnace, as well as a significant amount of manual operation time, which greatly shortens the effective operating time of the equipment. The intermittent production mode leads to a discontinuous production process and low equipment utilization, which greatly limits the overall production efficiency of carbon fiber. At the same time, manual operation near high-temperature equipment poses certain safety hazards, such as burns and mechanical collisions, which places higher demands on safety production management. Utility Model Content

[0004] In view of the problems of high labor intensity and low efficiency of the existing intermittent manual loading and unloading, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a carbon fiber activation furnace, which aims to achieve automated and continuous feeding of carbon fiber.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a carbon fiber activation furnace, including a base, a heating furnace bottom rotatably mounted on one side of the base, a furnace cover hinged to the top of the heating furnace bottom, and a material pipe assembly rotatably mounted between the two sides of the heating furnace bottom, with the middle part of the material pipe assembly located inside the heating chamber. The feed pipe assembly has a feed component at the feed end, a discharge pipe at the discharge end, a material valve at the discharge end, and a discharge pipe at the discharge end of the material valve.

[0007] As an improved technical solution, a mounting shaft is rotatably mounted on one side of the top of the base via a bearing. Rotating blocks are sleeved on both ends of the mounting shaft, and the rotating blocks are welded to the bottom of the heating furnace. Two support legs are fixed on the bottom of the heating furnace on the side away from the mounting shaft. A hydraulic cylinder is rotatably mounted inside the base, and the movable end of the hydraulic cylinder is rotatably mounted on the bottom of the heating furnace.

[0008] As an improved technical solution, the material tube assembly includes a horizontal tube, and an integrally formed feed connecting pipe is provided at one end of the horizontal tube near the feed assembly, and the feed end of the feed connecting pipe is rotatably connected to the discharge end of the feed assembly. An integrally formed tapered tube is provided at one end of the horizontal tube away from the feed connecting pipe, and an integrally formed discharge connecting pipe is provided at one end of the tapered tube away from the horizontal tube.

[0009] As an improved technical solution, the feeding assembly includes a support frame fixed on the side of the base away from the mounting axis, a fixed pipe fixed on the support frame, and the end of the fixed pipe near the feed connecting pipe is rotatably installed at the inlet end of the feed connecting pipe. A material hopper is welded to the fixed pipe through a material injection port, and a feeding port is opened on the top of the material hopper.

[0010] As an improved technical solution, an electric telescopic rod is fixed to the side of the support frame away from the feed pipe by a rod frame, and a piston head is installed at the movable end of the electric telescopic rod, with the piston head located inside the fixed pipe.

[0011] As an improved technical solution, a second servo motor is installed at the center of the top of the silo, and a rotating shaft is fixed to the output end of the second servo motor. A spiral blade is sleeved on the end of the rotating shaft away from the second servo motor.

[0012] As an improved technical solution, the end of the discharge connecting pipe away from the tapered pipe is fixed with an end cap by a flange, an air inlet pipe is inserted and fixed at the center of the end cap, a pipe frame is sleeved in the middle of the air inlet pipe, and a first servo motor is mounted on the side of the base near the pipe frame by a motor frame, and a gear transmission component is installed between the drive end of the first servo motor and the discharge connecting pipe.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, the piston head is driven by the extension of the electric telescopic rod to move towards the feed pipe, so that the piston head crosses the injection port of the fixed pipe, causing the inlet end of the feed pipe to be blocked. At the same time, the material valve seals from the outlet end, causing the horizontal pipe to be in a sealed state. This helps to prevent gas leakage inside the horizontal pipe, not only avoiding gas leakage and waste, but also ensuring full contact between gas and material, promoting carbonization reaction.

[0014] 2. This utility model, by integrating an automated feeding component hopper and unloading mechanism, enables feeding and unloading operations without shutting down the furnace or lowering the temperature. This allows for seamless connection between the feeding, activation, and unloading processes, forming a complete continuous production line. This greatly improves equipment utilization and production efficiency, doubling the production capacity. Furthermore, the entire feeding and unloading process requires no direct human intervention, fundamentally solving the problem of manual operation in high-temperature environments, saving labor costs, ensuring the safety and health of employees, and eliminating corresponding safety hazards. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of a carbon fiber activation furnace according to the present invention.

[0016] Figure 2 This is a schematic diagram of the material pipe structure of a carbon fiber activation furnace according to this utility model.

[0017] Figure 3 This is a cross-sectional view of the hopper of a carbon fiber activation furnace according to this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Base; 2. Mounting shaft; 3. Heating furnace bottom; 4. Material pipe assembly; 41. Horizontal pipe; 42. Conical pipe; 43. Discharge connecting pipe; 44. Feed connecting pipe; 5. Feeding assembly; 51. Support frame; 52. Electric telescopic rod; 53. Piston head; 54. Fixed pipe; 55. Material bin; 56. Rotating shaft; 57. Spiral blade; 58. Second servo motor; 6. Furnace cover; 7. Hydraulic cylinder; 8. Support leg; 9. End cover; 10. Air inlet pipe; 11. Pipe rack; 12. Material valve; 13. Discharge pipe; 14. Discharge pipe; 15. Gear transmission component; 16. First servo motor. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0020] Reference Figures 1-3This is the first embodiment of the present invention, which provides a carbon fiber activation furnace. This carbon fiber activation furnace includes a base 1, a heating furnace bottom 3 rotatably mounted on one side of the base 1, a furnace cover 6 hinged to the top of the heating furnace bottom 3, a heating chamber formed between the opposite surfaces of the heating furnace bottom 3 and the furnace cover 6, a resistance wire is provided inside the heating chamber, and a material pipe assembly 4 rotatably mounted between the two sides of the heating furnace bottom 3, with the middle part of the material pipe assembly 4 located inside the heating chamber. The feed pipe assembly 4 has a feed component 5 at the feed end and a discharge pipe 13 at the discharge end. The discharge pipe 13 has a fixed material valve 12 at the discharge end and a discharge pipe 14 at the discharge end.

[0021] A mounting shaft 2 is rotatably mounted on one side of the top of the base 1 via a bearing. Rotating blocks are sleeved on both ends of the mounting shaft 2, and the rotating blocks are welded to the bottom of the heating furnace bottom 3. Two support legs 8 are fixed on the bottom of the heating furnace bottom 3 on the side away from the mounting shaft 2, and the two support legs 8 are symmetrical. A hydraulic cylinder 7 is rotatably mounted inside the base 1, and the movable end of the hydraulic cylinder 7 is rotatably mounted on the bottom of the heating furnace bottom 3. A transverse cavity is opened on the top of the base 1 for the hydraulic cylinder 7 to pass through.

[0022] The feed tube assembly 4 includes a horizontal tube 41. The end of the horizontal tube 41 closest to the feed assembly 5 is integrally formed with a feed connecting pipe 44, and the feed end of the feed connecting pipe 44 is rotatably connected to the discharge end of the feed assembly 5. The end of the horizontal tube 41 away from the feed connecting pipe 44 is integrally formed with a tapered tube 42. The tapered tube 42 facilitates the material inside the horizontal tube 41 to slide into the discharge connecting pipe 43. At the same time, it does not prevent the material from getting stuck inside the horizontal tube 41 and being unable to enter the horizontal tube 41. It ensures that all the finished material inside the horizontal tube 41 falls into the discharge connecting pipe 43 and avoids material residue inside the horizontal tube 41. The end of the tapered tube 42 away from the horizontal tube 41 is integrally formed with a discharge connecting pipe 43. The top of the discharge connecting pipe 43 is provided with a discharge port, and the discharge pipe 13 is welded to the position of the discharge connecting pipe 43 directly opposite the discharge port.

[0023] During use, by integrating the automated feeding component hopper 55 and the unloading mechanism, loading and unloading operations can be carried out without stopping the furnace or cooling down. This enables seamless connection between the feeding, activation, and unloading processes, forming a complete continuous production line. This greatly improves equipment utilization and production efficiency, and doubles the production capacity. Furthermore, the entire loading and unloading process does not require direct human intervention, fundamentally solving the problem of manual operation in high-temperature environments, saving labor costs, ensuring the safety and health of employees, and eliminating corresponding safety hazards. Example 2

[0024] Reference Figure 2 Figure 3This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the feeding assembly 5 includes a support frame 51 fixed on the side of the base 1 away from the mounting shaft 2. A fixing pipe 54 is fixed on the support frame 51, and the end of the fixing pipe 54 near the feeding connecting pipe 44 is rotatably installed at the inlet end of the feeding connecting pipe 44. A material hopper 55 is welded to the fixing pipe 54 through a material injection port. A feeding port is opened on the top of the material hopper 55.

[0025] An electric telescopic rod 52 is fixed to the side of the support frame 51 away from the feed pipe 44 by a rod frame. A piston head 53 is installed at the movable end of the electric telescopic rod 52, and the piston head 53 is located inside the fixed pipe 54.

[0026] A second servo motor 58 is installed at the center of the top of the hopper 55, and the output end of the second servo motor 58 is located inside the hopper 55. A rotating shaft 56 is fixed to the output end of the second servo motor 58. A spiral blade 57 is sleeved on the end of the rotating shaft 56 away from the second servo motor 58. The spiral blade 57 is driven by the second servo motor 58 to rotate and transport the material inside the hopper 55 to the inside of the fixed tube 54, so as to realize quantitative feeding, avoid excessive or insufficient feeding, and uniform feeding, which helps to ensure the uniformity of heating and improve the carbonization effect.

[0027] An end cap 9 is fixed to the end of the discharge pipe 43 away from the tapered pipe 42 via a flange. An air inlet pipe 10 is inserted and fixed at the center of the end cap 9. A pipe bracket 11 is sleeved in the middle of the air inlet pipe 10 and fixed to the material valve 12. A first servo motor 16 is mounted on the side of the base 1 near the pipe bracket 11 via a motor bracket. A gear transmission component 15 is installed between the drive end of the first servo motor 16 and the discharge pipe 43. The gear transmission component 15 consists of two meshing gears, one of which is sleeved on the discharge pipe 43, and the other... A drive unit installed on the first servo motor 16 drives the horizontal tube 41 to rotate during the carbonization process via the gear transmission component 15. During the rotation, the horizontal tube 41 will rotate and contact the heat source 360°, making the material inside the horizontal tube 41 heat more evenly. Furthermore, during the rotation of the horizontal tube 41, the material inside the horizontal tube 41 is in a continuous rolling state, which can further promote the fullness and uniformity of the material contact with the heat source, thereby helping to improve the carbonization effect of the material.

[0028] During use, the electric telescopic rod 52 extends and drives the piston head 53 to move toward the feed pipe 44, so that the piston head 53 crosses the injection port of the fixed pipe 54, causing the inlet end of the feed pipe 44 to be blocked. At the same time, the material valve 12 seals from the outlet end, causing the horizontal pipe 41 to be sealed. This helps to prevent gas leakage inside the horizontal pipe 41, not only avoiding gas leakage and waste, but also ensuring sufficient contact between gas and material, promoting the carbonization reaction.

[0029] Based on embodiments 1-2, the working principle of this utility model is as follows: the raw material is poured into the internal buffer of the hopper 55, and the second servo motor 58 drives the rotating shaft 56 to rotate the spiral blade 57. The rotation of the spiral blade 57 will drive the raw material inside the hopper 55 to fall into the fixed tube 54. The extension of hydraulic cylinder 7 can drive the heating furnace bottom 3 to rotate around the mounting shaft 2. At this time, the extension length of hydraulic cylinder 7 is A, so that the heating furnace bottom 3 is in an inclined state. At this time, the hopper 55 tilts upward and the discharge pipe 14 falls downward. The raw material that falls into the fixed pipe 54 slides into the feed pipe 44 under the action of gravity and finally falls into the horizontal pipe 41. When the feeding is completed, the rotation of the driving spiral blade 57 is stopped, and the hydraulic cylinder 7 is shortened to pull the heating furnace bottom 3 from the inclined state back to the horizontal state. At this time, the material falls into the horizontal pipe 41. The material falls into the interior of the horizontal tube 41, where it is heated and carbonized by the resistance wire inside the heating chamber. The gas pipeline is connected to the inlet end of the inlet pipe 10, and the gas enters the interior of the outlet connecting pipe 43 through the inlet pipe 10. The gas will eventually enter the interior of the horizontal tube 41 and come into contact with the raw material. After carbonization is completed, the material valve 12 is opened, and the hydraulic cylinder 7 continues to extend to drive the heating furnace bottom 3 to tilt. At this time, the extension length of the hydraulic cylinder 7 is B, and B>A. At this time, the material inside the horizontal pipe 41 will fall into the inside of the discharge pipe 43 under the action of the tilting gravity, and fall into the inside of the discharge pipe 13 through the discharge port on the discharge pipe 43, and finally be discharged through the discharge pipe 14 to complete the unloading. After unloading is completed, the material valve 12 is closed again, and the heating furnace bottom 3 is placed horizontally. The electric telescopic rod 52 is shortened to reset the piston head 53 and continue to feed material into the horizontal tube 41.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A carbon fiber activation furnace, comprising a base (1), characterized in that: A heating furnace bottom (3) is rotatably installed on one side of the base (1), and a furnace cover (6) is hinged to the top of the heating furnace bottom (3). A material pipe assembly (4) is rotatably installed between the two sides of the heating furnace bottom (3), and the middle part of the material pipe assembly (4) is located inside the heating chamber. The feed pipe assembly (4) is provided with a feed assembly (5) at the feed end, and a discharge pipe (13) is installed at the discharge end of the feed pipe assembly (4). A material valve (12) is fixed at the discharge end of the discharge pipe (13), and a discharge pipe (14) is installed at the discharge end of the material valve (12).

2. The carbon fiber activation furnace according to claim 1, characterized in that: The mounting shaft (2) is rotatably mounted on one side of the top of the base (1) via a bearing. Both ends of the mounting shaft (2) are fitted with rotating blocks, and the rotating blocks are welded to the bottom of the heating furnace bottom (3). Two support legs (8) are fixed at the bottom of the heating furnace bottom (3) on the side away from the mounting shaft (2). A hydraulic cylinder (7) is rotatably mounted inside the base (1), and the movable end of the hydraulic cylinder (7) is rotatably mounted at the bottom of the heating furnace bottom (3).

3. The carbon fiber activation furnace according to claim 2, characterized in that: The feed tube assembly (4) includes a horizontal tube (41), and a feed connecting tube (44) is integrally formed at one end of the horizontal tube (41) near the feed assembly (5). The feed end of the feed connecting tube (44) is rotatably connected to the discharge end of the feed assembly (5). A tapered tube (42) is integrally formed at one end of the horizontal tube (41) away from the feed connecting tube (44), and a discharge connecting tube (43) is integrally formed at one end of the tapered tube (42) away from the horizontal tube (41).

4. The carbon fiber activation furnace according to claim 3, characterized in that: The feeding assembly (5) includes a support frame (51) fixed on the side of the base (1) away from the mounting shaft (2). A fixing pipe (54) is fixed on the support frame (51), and the end of the fixing pipe (54) near the feeding connecting pipe (44) is rotatably installed at the inlet end of the feeding connecting pipe (44). A hopper (55) is welded to the fixing pipe (54) through a filling port. A feeding port is opened on the top of the hopper (55).

5. A carbon fiber activation furnace according to claim 4, characterized in that: The support frame (51) is fixed with an electric telescopic rod (52) on the side away from the feed pipe (44) by a rod frame. The movable end of the electric telescopic rod (52) is equipped with a piston head (53), and the piston head (53) is located inside the fixed pipe (54).

6. A carbon fiber activation furnace according to claim 5, characterized in that: A second servo motor (58) is installed at the center of the top of the hopper (55). A rotating shaft (56) is fixed at the output end of the second servo motor (58). A spiral blade (57) is sleeved on the end of the rotating shaft (56) away from the second servo motor (58).

7. A carbon fiber activation furnace according to claim 6, characterized in that: The end of the discharge pipe (43) away from the tapered pipe (42) is fixed with an end cap (9) by a flange. An air inlet pipe (10) is inserted and fixed at the center of the end cap (9). A pipe rack (11) is sleeved in the middle of the air inlet pipe (10). A first servo motor (16) is installed on the side of the base (1) near the pipe rack (11) by a motor rack. A gear transmission component (15) is installed between the drive end of the first servo motor (16) and the discharge pipe (43).

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