A microwave-assisted heating carbon fiber composite material recycling device
By combining the rotation of the material carrier tray with the leveling rod, the problem of uneven heating of carbon fiber composite materials is solved, achieving efficient resin decomposition and carbon fiber separation, improving recycling quality and equipment stability, and meeting environmental protection requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CARBEN NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-10-30
- Publication Date
- 2026-07-31
AI Technical Summary
Existing carbon fiber composite materials suffer from inconsistent heating effects during pyrolysis due to uneven material placement, which affects recycling efficiency and quality.
The carbon fiber composite material recycling device using microwave-assisted heating ensures that the material forms a uniform layer in the heating chamber by rotating the material tray and cooperating with the leveling rod. It also uses microwave energy to heat the material evenly. Combined with the sliding connection design of the drawer, it facilitates the loading and unloading of materials and the discharge of waste gas.
This technology enables uniform heating of carbon fiber composite materials, improves the sufficiency of resin decomposition and the separation quality of carbon fibers, reduces the probability of equipment failure, extends service life, and meets environmental protection requirements.
Smart Images
Figure CN224573712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pyrolysis recovery devices, specifically to a microwave-assisted heating carbon fiber composite material recovery device. Background Technology
[0002] Carbon fiber composites, with their high strength, high elastic modulus, excellent heat resistance and corrosion resistance, are widely used in many industrial fields such as space shuttles, golf clubs, tennis rackets, automobiles, wind power generation and medical devices. However, with the increase in their usage, the problem of disposing of waste carbon fiber composite materials, such as scraps generated in the manufacturing stage and scrapped products after the end of their service life, is becoming increasingly prominent.
[0003] When existing carbon fiber composite materials are subjected to heating and pyrolysis, the uneven placement of the materials leads to inconsistent heating effects, affecting recycling efficiency and quality. Therefore, a microwave-assisted heating carbon fiber composite material recycling device is needed, which can flatten the carbon fiber composite material for pyrolysis. Utility Model Content
[0004] To address this issue, this invention provides a microwave-assisted heating carbon fiber composite material recycling device. The device uses a material carrier to rotate the carbon fiber composite material above it, which, in conjunction with a leveling rod, solves the problem that uneven material placement during pyrolysis can lead to inconsistent heating effects, affecting recycling efficiency and quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a microwave-assisted heating carbon fiber composite material recycling device, comprising a pyrolysis furnace body, a heating chamber inside the pyrolysis furnace body, a microwave heating device body fixedly mounted on the top of the heating chamber, a fixing plate fixedly mounted inside the pyrolysis furnace body, an electric push rod fixedly mounted on the bottom of the fixing plate, a heat insulation rod one fixedly connected to the output end of the electric push rod, a vertical slide rod fixedly mounted on the top of the heat insulation rod one, a leveling rod fixedly mounted on the top of the vertical slide rod, a motor fixedly mounted on the bottom of the fixing plate, a heat insulation rod two fixedly mounted on the output end of the motor, a transmission shaft fixedly mounted on the top of the heat insulation rod two, a gear fixedly mounted on the outside of the transmission shaft, a drawer inside the heating chamber, a rotating shaft on the top of the drawer, a toothed ring fixedly mounted on the outside of the rotating shaft, and a material loading tray fixedly mounted on the top of the rotating shaft.
[0006] Preferably, the top of the vertical slide bar extends into the heating chamber and is slidably connected to the bottom of the heating chamber.
[0007] Preferably, the top of the drive shaft extends into the heating chamber and is connected to the bottom of the heating chamber via a bearing.
[0008] Preferably, the gear meshes with a ring gear.
[0009] Preferably, the drawer is located inside the heating chamber and is slidably connected to the heating chamber.
[0010] Preferably, the bottom of the pivot is connected to the top of the drawer via a bearing.
[0011] Preferably, a waste gas discharge pipe is provided on one side of the heating chamber.
[0012] Preferably, both the first heat insulation rod and the second heat insulation rod penetrate the fixing plate.
[0013] The present invention has the following advantages: By rotating the material tray and cooperating with the leveling rod, the carbon fiber composite material forms a uniform layer in the heating chamber. The continuous rotation of the material tray ensures that all parts of the material receive microwave energy evenly, avoiding differences in heating effect caused by uneven material accumulation. This significantly improves the sufficiency of resin decomposition and the separation quality of carbon fiber, resulting in better mechanical properties of the recovered carbon fiber. The sliding connection design between the drawer and the heating chamber facilitates the loading and unloading of materials; the first and second heat insulation rods effectively block heat transfer, protecting the electric push rod and motor from high temperatures; the bearing connections and sliding connections of each component ensure the smooth rotation of the material tray and the lifting of the leveling rod, reducing the probability of equipment failure and extending its service life. At the same time, the exhaust pipe facilitates centralized treatment of exhaust gas, which is more in line with environmental protection requirements. Attached Figure Description
[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0016] Figure 1 Partial sectional perspective view provided for this utility model; Figure 2 Partial sectional perspective view of the drawer in the extended state provided by this utility model; Figure 3A perspective view showing the connection relationship between the vertical slide bar and the transmission shaft provided by this utility model; Figure 4 A partially exploded perspective view of the drawer area provided for this utility model; Figure 5 A front perspective view of this utility model.
[0017] In the diagram: 1. Pyrolysis furnace body, 2. Heating chamber, 3. Exhaust gas exhaust pipe, 4. Microwave heating device body, 5. Fixing plate, 6. Electric push rod, 7. Insulation rod one, 8. Vertical slide rod, 9. Leveling rod, 10. Motor, 11. Insulation rod two, 12. Drive shaft, 13. Gear, 14. Drawer, 15. Rotating shaft, 16. Gear ring, 17. Material tray. Detailed Implementation
[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0019] See attached document Figure 1 - Appendix Figure 5 This utility model provides a microwave-assisted heating carbon fiber composite material recycling device, including a pyrolysis furnace body 1, a heating chamber 2 inside the pyrolysis furnace body 1, a microwave heating device body 4 fixedly mounted on the top of the heating chamber 2, a fixing plate 5 fixedly mounted inside the pyrolysis furnace body 1, an electric push rod 6 fixedly mounted at the bottom of the fixing plate 5, a heat insulation rod 7 fixedly connected to the output end of the electric push rod 6, a vertical slide rod 8 fixedly mounted on the top of the heat insulation rod 7, a flattening rod 9 fixedly mounted on the top of the vertical slide rod 8, a motor 10 fixedly mounted at the bottom of the fixing plate 5, a heat insulation rod 11 fixedly mounted at the output end of the motor 10, a transmission shaft 12 fixedly mounted on the top of the heat insulation rod 11, a gear 13 fixedly mounted on the outside of the transmission shaft 12, a drawer 14 inside the heating chamber 2, a rotating shaft 15 on the top of the drawer 14, a toothed ring 16 fixedly mounted on the outside of the rotating shaft 15, and a material tray 17 fixedly mounted on the top of the rotating shaft 15. In this embodiment, in order to achieve uniform heating of carbon fiber composite material for efficient carbon fiber recycling, the transmission shaft 12 is driven to rotate by the motor 10, and the gear 13 meshes with the gear ring 16 to drive the rotating shaft 15 and the material tray 17 to rotate. At the same time, the electric push rod 6 pushes the vertical slide rod 8 to adjust the height of the flattening rod 9, and flattens the rotating material. With the help of the microwave heating device body 4, uniform heating is achieved to promote resin decomposition and separate carbon fiber. In order to achieve the purpose of stable lifting and lowering of the leveling rod 9 in the heating chamber 2 and precise action on the material, the device adopts the following technical solution: the top of the vertical slide rod 8 extends into the interior of the heating chamber 2 and slides to the bottom of the heating chamber 2. The vertical slide rod 8 can move smoothly along the sliding trajectory at the bottom of the heating chamber 2. Driven by the electric push rod 6, it drives the leveling rod 9 to rise and fall smoothly, ensuring that the leveling rod 9 can accurately contact and scrape the carbon fiber composite material on the material tray 17. At the same time, the sliding connection structure restricts the offset of the vertical slide rod 8 and ensures the stability of the scraping operation. To achieve stable rotation of the material tray 17 and ensure uniform heating of the material, the device employs the following technical solution: the top of the drive shaft 12 extends into the heating chamber 2 and is connected to the bottom of the heating chamber 2 via a bearing; the gear 13 meshes with the gear ring 16; the drawer 14 is located inside the heating chamber 2 and is slidably connected to the heating chamber 2; the bottom of the rotating shaft 15 is connected to the top of the drawer 14 via a bearing; the drive shaft 12 can rotate stably at the bottom of the heating chamber 2 with the help of the bearing; the driving force of the motor 10 is transmitted to the gear 13 via the drive shaft 12; the gear 13 drives the meshing gear ring 16 and the rotating shaft 15 to rotate; the rotating shaft 15 is connected to the drawer 14 via a bearing to ensure smooth rotation, thereby driving the material tray 17 to rotate at a uniform speed; at the same time, the sliding connection of the drawer 14 facilitates the loading and unloading of materials and does not affect the overall transmission stability. In order to achieve the purpose of timely discharge of waste gas generated during the heating process, the device adopts the following technical solution: a waste gas discharge pipe 3 is provided on one side of the heating chamber 2. The waste gas containing resin decomposition products and other substances generated during the microwave heating and decomposition of carbon fiber composite material can be smoothly discharged from the heating chamber 2 through the waste gas discharge pipe 3, preventing the waste gas from stagnating and causing abnormal pressure in the heating chamber or affecting the separation effect of carbon fiber. At the same time, it is convenient to carry out centralized treatment of waste gas in the future, reducing environmental pollution. To ensure that the heat insulation rod 7 and the heat insulation rod 11 can stably transmit power and effectively block heat, thus guaranteeing the normal operation of the electric push rod 6 and the motor 10, the device adopts the following technical solution: Both the heat insulation rod 7 and the heat insulation rod 11 penetrate the fixing plate 5. The fixing plate 5 provides stable support and guidance for the heat insulation rod 7 and the heat insulation rod 11, preventing them from shifting when driving the vertical slide rod 8 and the transmission shaft 12. At the same time, the through structure allows the heat insulation rod to effectively transmit power from the electric push rod 6 and the motor 10 below the fixing plate 5 to the components inside the heating chamber 2. Furthermore, the heat insulation material blocks the heat inside the heating chamber 2 from being conducted to the driving components below through the rod body, preventing them from being damaged due to high temperature.
[0020] The usage process of this utility model is as follows: When using this utility model, first connect the microwave heating device body 4, electric push rod 6, and motor 10 to an external power source to ensure a stable power supply for each component. In the initial stage of operation, first pull the drawer 14 out of the heating chamber 2. At this time, the drawer 14 moves smoothly along the sliding track of the heating chamber 2. The existing sliding connection and sealing connection structure between the drawer 14 and the heating chamber 2 can ensure the smoothness of the pulling out and pushing in process. At the same time, it can effectively maintain the sealing of the heating chamber 2 in the subsequent heating stage. Next, evenly place the carbon fiber composite material to be processed on the loading tray 17. After the feeding is completed, push the drawer 14 back into the heating chamber 2 until it is completely reset, ensuring that the heating chamber 2 is in a closed state. The drawer 14 is pushed back into its original position. The rear gear ring 16 meshes with the gear 13. Then, the motor 10 is started, and the output end of the motor 10 drives the second heat insulation rod 11 to rotate. The second heat insulation rod 11 transmits power to the transmission shaft 12, causing the transmission shaft 12 to rotate accordingly. Since the transmission shaft 12 is externally fixed with a gear 13, and the gear 13 meshes with the gear ring 16 fixedly sleeved on the outside of the rotating shaft 15, the rotation of the transmission shaft 12 will drive the gear ring 16 to rotate, thereby causing the rotating shaft 15 to start rotating, ultimately realizing the rotation of the material tray 17. The carbon fiber composite material on the material tray 17 also rotates synchronously. During the rotation of the material tray 17, the electric push rod 6 is activated. The output end of the electric push rod 6 extends and retracts, driving the first heat insulation rod 7 to move up and down. The first heat insulation rod 7 then pushes the vertical slide rod 8 to slide at the bottom of the heating chamber 2. The connecting structure allows for vertical sliding, thereby adjusting the height of the leveling rod 9. Based on the accumulation of carbon fiber composite material on the loading tray 17, the leveling rod 9 is adjusted to a suitable height, after which the electric push rod 6 stops. As the loading tray 17 continues to rotate, the leveling rod 9 scrapes the carbon fiber composite material during rotation, ensuring a uniform material layer on the loading tray 17. This prevents uneven material accumulation from affecting subsequent heating. After leveling, the microwave heating device body 4 is activated, emitting microwaves into the heating cavity 2 to heat the leveled carbon fiber composite material on the loading tray 17. During heating, the loading tray 17 continues to rotate, ensuring that all parts of the material receive microwave energy evenly, achieving uniform heating. During heating, the carbon fiber composite material undergoes a depolymerization reaction under microwave heating, causing the resin components to gradually decompose. Waste gas generated during heating is discharged through a waste gas exhaust pipe 3 on one side of the heating chamber 2. This exhaust gas can be connected to external waste gas treatment equipment for purification, preventing direct emissions and environmental pollution. After the heating process reaches the preset time, the microwave heating device body 4 is first turned off to stop heating, followed by the motor 10. The material tray 17 gradually stops rotating. Once the temperature inside the heating chamber 2 drops to a suitable level, the drawer 14 is pulled out of the heating chamber 2 again, and the processed material on the material tray 17 is removed, completing one carbon fiber composite material recycling operation. Throughout the entire process, the heat insulation rod 7 and the heat insulation rod 11 play crucial roles.These components effectively prevent heat from the heating chamber 2 from being transferred to the electric push rod 6 and the motor 10, thus preventing high temperatures from affecting the normal operation of these two components and ensuring the stable operation of the device.
[0021] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.
Claims
1. A microwave assisted heating carbon fiber composite material recycling device comprising a pyrolysis furnace body (1), characterized in that: The pyrolysis furnace body (1) is provided with a heating chamber (2) inside. The heating chamber (2) is fixedly provided with a microwave heating device body (4) at the top. The pyrolysis furnace body (1) is fixedly provided with a fixing plate (5). The fixing plate (5) is fixedly provided with an electric push rod (6) at the bottom. The output end of the electric push rod (6) is fixedly connected to a heat insulation rod (7). The top of the heat insulation rod (7) is fixedly provided with a vertical slide rod (8). The top of the vertical slide rod (8) is fixedly provided with a leveling rod (9). The bottom of the fixing plate (5) is fixedly provided with a motor (10). The output end of the motor (10) is fixedly provided with a heat insulation rod (2) (11). The top of the heat insulation rod (2) (11) is fixedly provided with a transmission shaft (12). The transmission shaft (12) (12) (13) is fixedly provided with a gear. The heating chamber (2) is provided with a drawer (14). The top of the drawer (14) (15) is provided with a rotating shaft (15). The rotating shaft (15) (15) (16) is fixedly sleeved on the outside. The top of the rotating shaft (15) (17) is fixedly provided with a material tray.
2. A microwave assisted heating carbon fiber composite material recycling device according to claim 1, characterized in that: The top of the vertical slide bar (8) extends into the heating chamber (2) and is slidably connected to the bottom of the heating chamber (2).
3. The microwave assisted heating carbon fiber composite material recycling device according to claim 1, characterized in that: The top of the drive shaft (12) extends into the heating chamber (2) and is connected to the bottom of the heating chamber (2) via a bearing.
4. The microwave assisted heating carbon fiber composite material recycling device according to claim 1, characterized in that: The gear (13) meshes with the gear ring (16).
5. The microwave-assisted heating carbon fiber composite material recycling device according to claim 1, characterized in that: The drawer (14) is located inside the heating chamber (2) and is slidably connected to the heating chamber (2).
6. The microwave-assisted heating carbon fiber composite material recycling device according to claim 1, characterized in that: The bottom of the pivot (15) is connected to the top of the drawer (14) via a bearing.
7. The microwave assisted heating carbon fiber composite material recycling device according to claim 1, wherein: The heating chamber (2) is provided with a waste gas discharge pipe (3) on one side.
8. The microwave assisted heating carbon fiber composite material recycling device according to claim 1, characterized in that: Both the first heat insulation rod (7) and the second heat insulation rod (11) penetrate the fixing plate (5).