Waste plastic resource recycling device

Abstract

The invention provides a waste plastic resource recycling device which comprises a rack, a reaction cavity is formed in the rack, a first electrode plate is arranged at the bottom of the reaction cavity, a punch installed through a telescopic device is arranged on the rack, a second electrode plate is arranged at the end of the punch, and the first electrode plate and the second electrode plate are connected with a Joule pulse generator. A feeding unit is arranged on the rack, and the reaction cavity is connected with a gas storage tank and a condensation collection mechanism. The high-pressure environment provided by the device not only promotes heat conduction, but also physically inhibits material expansion caused by volatilization of an intermediate product, and ensures the stability of an electric heating process, so that uniform heating of plastic particles is realized, and the temperature uniformity of a waste plastic sample can be ensured. CO2 reaches or is close to a supercritical state at high temperature and high pressure, excellent diffusivity and solvent property of CO2 are beneficial to transfer of heat to a deep layer of a material, CO2 can participate in a chemical reaction of carbon and hydrocarbon cracking free radicals, and generation of synthesis gas is promoted.

Description

Technical Field

[0001] This invention specifically relates to a waste plastic resource recycling device. Background Technology

[0002] Chemical recycling is one of the most important methods for plastic recycling. Pyrolysis, with its advantages of high efficiency, environmental friendliness, and ease of expansion, has gradually become the mainstream technology in the field of waste plastic chemical recycling. Pyrolysis technology decomposes plastics into smaller hydrocarbon products through high-temperature heating under anaerobic or low-oxygen conditions to achieve resource recovery, and has broad industrial application potential.

[0003] However, existing waste plastic pyrolysis technologies rely on continuous heating to raise the reactants to 400-800℃ and maintain the reaction for a relatively long time to promote waste plastic conversion. Traditional waste plastic pyrolysis technologies suffer from drawbacks such as slow heating rates, high energy consumption, easy catalyst deactivation, and low product collection rates. In recent years, Joule pulse heating technology has emerged as a solution due to its ability to achieve rapid heating in a short time, effectively suppressing side reactions. This technology has been extended to the rapid pyrolysis of plastics, and by rationally controlling operating parameters, catalytic-free directional conversion of waste plastics can be achieved.

[0004] However, existing systems for the Joule pulse heating conversion of waste plastics face numerous challenges, including limited sample temperature uniformity. Current research uses small (milligram-level) amounts of waste plastic for conversion, achieving approximately uniform heating during Joule heating. However, due to the low density and poor thermal and electrical conductivity of waste plastics, large quantities of waste plastic particles / fragments contain numerous voids, further increasing thermal resistance in industrial applications. Therefore, when using Joule heating, heat is concentrated locally or on the surface, making it difficult to achieve uniform heating of the plastic particles and ensuring temperature uniformity in the waste plastic sample. To overcome these shortcomings, this invention proposes a waste plastic resource recycling device to address the aforementioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a waste plastic resource recycling device to solve the problems mentioned in the background section regarding existing methods for Joule pulse heating conversion of waste plastics. Due to the low density and poor thermal and electrical conductivity of waste plastics, when applied to industrial applications, large quantities of waste plastic particles and fragments contain numerous voids, further increasing thermal resistance. Heat is mainly concentrated in localized areas or on the surface, making it difficult to achieve uniform heating of plastic particles and ensuring the temperature uniformity of waste plastic samples.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waste plastic resource recycling device, comprising: The frame is equipped with a reaction chamber, and a first electrode plate is provided at the bottom of the reaction chamber; The punch is mounted on the frame via a telescopic device, and a second electrode plate is provided at its end. The first electrode plate and the second electrode plate are connected to a Joule pulse generator. The feeding unit is mounted on the frame; A gas storage tank is connected to the reaction chamber via an inlet valve; and A condensation collection mechanism is connected to the reaction chamber.

[0007] In a preferred embodiment, the condensation collection mechanism includes: A primary condenser is connected to the reaction chamber via an outlet valve; A secondary condenser is connected to the primary condenser; and The gas collecting bottle is connected to the secondary condenser.

[0008] In a preferred embodiment, the bottom of the frame is provided with a slidable mounting plate and two sets of support plates. Multiple sets of the first electrode sheet are provided and located on the mounting plate and the inner wall of the reaction chamber. The two sets of support plates can slide relative to each other. The sliding direction of the support plates is perpendicular to that of the mounting plate. The mounting plate and the two sets of support plates are connected to the punch through a drive mechanism. The drive mechanism converts the rising of the punch into driving the sliding opening and closing of the mounting plate and the two sets of support plates.

[0009] In a preferred embodiment, the drive mechanism includes: A primary control mechanism, disposed on the punch and connected to the mounting plate, drives the mounting plate to reciprocate once when the punch rises; and A secondary control mechanism is disposed on the mounting plate and connected to the two sets of support plates to convert the sliding of the mounting plate into driving the sliding of the two sets of support plates.

[0010] In a preferred embodiment, the primary control mechanism includes: A movable frame is mounted on the mounting plate, and a guide rail is provided on the movable frame; A trapezoidal track is arranged on the movable frame, and its two ends are respectively connected to the guide track; The first guide ramp is located at the connection between the top of the trapezoidal track and the movable frame; A second guide ramp is disposed at the connection point between the guide rail and the bottom end of the trapezoidal rail; and A connecting seat is disposed at the telescopic end of the telescopic device and connected to the punch. A guide post is slidably passed through the connecting seat. The guide post is slidably disposed in the guide rail. An elastic element is disposed between the guide post and the connecting seat.

[0011] In a preferred embodiment, the secondary control mechanism includes: The first drive column is mounted on the support plate and slidably engaged on the frame; and The first inclined frame has two sets, both of which are fixedly connected to the mounting plate, and the first drive column is slidably engaged in the first inclined frame.

[0012] In a preferred embodiment, the feeding unit includes: A receiving frame is connected to the reaction chamber, and a pusher plate is slidably mounted on the receiving frame; A feeding frame is disposed on the push plate and can slide into the reaction chamber; A linkage component is disposed on the punch and connected to the push plate to convert the lifting and lowering of the punch within a specified range into driving the push plate to reciprocate and slide. A feeding plate is slidably disposed within the feeding frame, with one end extending beyond the feeding frame; and A feeding mechanism is disposed on the push plate and connected to the feeding plate to convert the sliding of the push plate into driving the feeding plate to reciprocate.

[0013] In a preferred embodiment, the feeding mechanism includes: A drive shaft is rotatably mounted on the push plate, and a gear is provided at its end; A rack, mounted on the receiving frame and meshing with the gear; and A transmission assembly is mounted on the transmission shaft and connected to the feed plate to convert the rotation of the transmission shaft into driving the feed plate to slide back and forth.

[0014] In a preferred embodiment, the transmission assembly includes a connecting rod, one end of which is hinged to the feed plate and the other end of which is eccentrically hinged to the transmission shaft.

[0015] In a preferred embodiment, the linkage component includes: A crossbar is provided on the punch, and a second drive column is provided at its end; A vertical frame, slidably mounted on the receiving bracket, is provided with the end of the drive shaft passing through the vertical frame; and The second inclined frame is connected to the vertical frame, and the second drive column is slidably engaged within the second inclined frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In operation, the device supplies dehumidified and ground plastic raw materials to the reaction chamber via a feeding unit, ensuring even distribution of the plastic material on the carbon cloth surface within the chamber. A control mechanism then moves the plunger downwards into the chamber for sealing, opening the gas tank to allow carbon dioxide gas to enter. A purging process is then performed to purge the air from the chamber, maintaining an inert atmosphere. After purging, all gas valves are closed, and pretreatment begins. Synchronous pulse discharge is applied, simultaneously applying temperature and pressure pulses. The plunger continues its downward movement, applying initial pressure (approximately 5-20 MPa) to the loose waste plastic, compressing it into a dense sheet-like structure, significantly reducing interparticle voids and increasing contact area. Subsequently, one or more low-intensity Joule pulses are applied, partially carbonizing the plastic surface and creating a preliminary conductive network within the material. This step aims to significantly improve the overall electrical and thermal conductivity of the material, laying the foundation for uniform and rapid heating in the subsequent main reaction stage. After the reaction, the waste plastic is converted into gaseous products under high temperature and pressure. The plunger moves upward a short distance, then discharges the high-pressure gas into a condensation and collection device for condensation and graded collection of pyrolysis products with different boiling points. The high-pressure environment provided by this device promotes heat conduction and physically inhibits material expansion caused by the volatilization of intermediate products, ensuring the stability of the electrothermal process and thus achieving uniform heating of plastic granules. The temperature uniformity of the waste plastic sample can be guaranteed. CO2 reaches or approaches a supercritical state under high temperature and pressure. Its excellent diffusivity and solvent properties help transfer heat to deeper layers of the material and can participate in the chemical reaction of carbon and hydrocarbon cracking free radicals, promoting the generation of syngas. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front view of a waste plastic resource recycling device provided by the present invention; Figure 2 This is a rear view of a waste plastic resource recycling device according to the present invention; Figure 3 This is a cross-sectional view of a waste plastic resource recycling device according to the present invention; Figure 4 This is a bottom view of a waste plastic resource recycling device according to the present invention; Figure 5 This is a schematic diagram of the movable frame in a waste plastic resource recycling device of the present invention; Figure 6 This is a schematic diagram of the feeding plate in a waste plastic resource recycling device of the present invention; Figure 7 This is a schematic diagram of the connection structure between the mounting plate and the support plate in a waste plastic resource recycling device of the present invention.

[0019] Figure label: 1. Frame; 2. Reaction chamber; 3. Gas storage tank; 4. Inlet valve; 5. Outlet valve; 6. Primary condenser; 7. Secondary condenser; 8. Gas collecting bottle; 9. Telescopic device; 10. Connecting seat; 11. Punch; 12. Second electrode plate; 13. Support plate; 14. First drive column; 15. Mounting plate; 16. First electrode plate; 17. Movable frame; 18. Guide rail; 19. Trapezoidal rail; 20. First guide ramp; 21. Second guide ramp; 22. First inclined frame; 23. Guide column; 24. Receiving frame; 25. Propeller plate; 26. Feeding frame; 27. Feeding plate; 28. Connecting rod; 29. ​​Drive shaft; 30. Gear; 31. Rack; 32. Crossbar; 33. Second drive column; 34. Second inclined frame; 35. Vertical frame. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0021] Example: like Figures 1 to 3 As shown, the present invention provides a waste plastic resource recycling device, including a frame 1, a reaction chamber 2 disposed on the frame 1, a first electrode plate 16 disposed at the bottom of the reaction chamber 2, a punch 11 mounted on the frame 1 via a telescopic device 9, a second electrode plate 12 disposed at the end of the punch 11, the first electrode plate 16 and the second electrode plate 12 being connected to a Joule pulse generator, the reaction chamber 2 being connected to a gas storage tank 3 via an air inlet valve 4, and the reaction chamber 2 being further connected to a condensation and collection mechanism, the condensation and collection mechanism including a primary condenser 6 connected to the reaction chamber 2 via an air outlet valve 5, the primary condenser 6 being connected to a secondary condenser 7, and the secondary condenser 7 being connected to a gas collection bottle 8.

[0022] The reaction chamber 2 in this device is a vertical cylindrical structure capable of withstanding high pressure. From the outside to the inside, it consists of an aerogel insulation layer, a metal thermally conductive layer, and a carbon cloth reaction layer. This multi-layered structure ensures excellent thermal insulation, electrical conductivity, and thermal conductivity. The inner wall lining, with its good electrical and thermal conductivity, also serves as the lower electrode. The punch 11 is made of high-strength conductive metal material and covered with an aerogel insulation layer; its end face dimensions match the inner diameter of the reaction chamber 2. Controllable pressure can be applied to the material inside the reaction chamber 2 under the drive of the telescopic device 9. The Joule pulse generator includes a high-frequency pulse power supply, a pressure servo mechanism, a current control module, and a synchronization control module. The synchronization control module can be programmed to control the timing, intensity, and duration of the pressure and temperature pulses, achieving synchronous or asynchronous impact modes. Through rapid impact discharge, the reaction region reaches a high-temperature, high-pressure state instantaneously, aiming to bring CO2 into or near a supercritical state. The primary condenser 6 and the secondary condenser 7 are used for the graded collection of pyrolysis products with different boiling points. The gas storage tank 3 is used to achieve the oxygen-free environment required for the reaction and to provide carbon dioxide. The carbon dioxide is converted into a supercritical state by high temperature and high pressure impact in the chamber and mixes with the plastic. In the process of pressure and temperature synergistic impact, it is both a heat carrier and a reactant.

[0023] During operation, the device evenly distributes the material at the bottom of the reaction chamber 2, ensuring uniform heating. A Joule pulse generator is coupled with a force-pressing device to achieve the synergistic effect of pressure and temperature pulses. The punch 11 serves both as an impact tool to physically compress the waste plastic and as a means of temperature control through discharge with the first electrode plate 16 and the second electrode plate 12. This device allows for easy implementation of the pretreatment stage and seamless transition to the reaction stage. Before the reaction, pressure impact compresses the raw material into thin sheets, reducing internal voids and volume, increasing the electrode contact area, and a single high-temperature discharge using temperature pulses carbonizes part of the plastic, achieving pretreatment and improving its thermal and electrical conductivity.

[0024] After feeding is completed, open the gas storage tank 3, the inlet valve 4 and the outlet valve 5, and carbon dioxide gas enters the reaction chamber 2. The air in the reaction chamber 2 is exhausted through a purging process over a certain period of time to maintain an inert atmosphere in the reaction chamber 2.

[0025] The pyrolysis temperature and activation energy of plastics under a carbon dioxide atmosphere are lower than those under a traditional nitrogen atmosphere. Furthermore, carbon dioxide activates plastics at 350℃, allowing it to react with intermediates in plastic pyrolysis to generate CO or other oxygen-containing compounds, thus improving product yield. In addition, carbon dioxide is in a supercritical state under high-pressure, high-temperature discharge conditions; its "penetrating diffusion" helps the conductive filler (carbon black) generated during plastic pretreatment to disperse more uniformly within the plastic, reducing filler agglomeration and enhancing conductivity. By precisely controlling the temperature and pressure within reaction chamber 2, the directional conversion of waste plastics is achieved, avoiding side reactions and improving the yield and purity of the target product.

[0026] The pressure pulses can be achieved by programming the vertical movement of the punch 11 and the first electrode plate 16, while temperature pulses can be achieved by connecting Joule pulse generators to both ends of the electrode plate. During the reaction, synchronous or asynchronous impact modes can be selected according to the reaction requirements. Synchronous Impact Mode: Used in the initial stage of the reaction, primarily to obtain high-temperature and high-pressure conditions. The plunger 11 maintains or further increases the pressure while simultaneously triggering a high-energy Joule pulse. Current flowing through the pre-treated conductive network generates significant Joule heat, causing the material to rise instantaneously (in milliseconds to seconds) to the target pyrolysis temperature (450-800°C) under high pressure. This high-pressure environment promotes heat conduction and physically inhibits material expansion caused by the volatilization of intermediate products, ensuring the stability of the electrothermal process. At this point, CO2 reaches or approaches a supercritical state under high temperature and pressure. Its excellent diffusivity and solvent properties facilitate heat transfer to deeper layers of the material and it can participate in the chemical reaction of carbon and hydrocarbon cracking free radicals, promoting the generation of syngas.

[0027] Asynchronous impact mode: Used in the final stage of the reaction. This includes "pressure-then-heat" (applying and holding the target pressure before triggering a Joule pulse) and "heat-then-pressure" (applying a brief, low-energy pulse to preheat and soften the material, then rapidly increasing the pressure to the target value before applying the main Joule pulse). This method is suitable for situations requiring more precise control of temperature and pressure distribution during the reaction process to promote the conversion of reactants to specific products, optimizing product selectivity and yield.

[0028] After the reaction is complete, the waste plastic is converted into gaseous products under high temperature and pressure. The punch 11 moves upward a short distance to the upper end of the gas outlet valve 5, opening the gas outlet valve 5. The high-pressure gas enters the condensation and collection mechanism through the gas outlet valve 5, where it is condensed and the pyrolysis products with different boiling points are collected in stages.

[0029] like Figure 4 , 5As shown in Figures 7 and 8, in this embodiment, the bottom of the frame 1 is provided with a slidable mounting plate 15 and two sets of support plates 13. Multiple sets of first electrode plates 16 are provided and located on the mounting plate 15 and the inner wall of the reaction chamber 2. The first electrode plates 16 are placed on the mounting plate 15 so that the first electrode plates 16 are centrally arranged, thereby ensuring the stable transmission of electric power. At the same time, the mounting plate 15 is located between the two sets of support plates 13 to ensure the stable transmission of the opening and closing power of the support plates 13.

[0030] The two sets of support plates 13 can slide relative to each other. The sliding direction of the support plates 13 and the mounting plate 15 is perpendicular. The mounting plate 15 and the two sets of support plates 13 are connected to the punch 11 through a drive mechanism. The drive mechanism converts the rising of the punch 11 into the sliding opening and closing of the mounting plate 15 and the two sets of support plates 13. The drive mechanism includes a primary control mechanism mounted on the punch 11. The primary control mechanism is connected to the mounting plate 15 to drive the mounting plate 15 to slide back and forth once when the punch 11 rises. The primary control mechanism includes a movable frame 17 mounted on the mounting plate 15. A guide rail 18 is provided on the movable frame 17. A trapezoidal rail 19 is arranged on the movable frame 17. Both ends of the trapezoidal rail 19 are connected to the guide rail 18. A first guide slope 20 is provided at the connection between the top of the trapezoidal rail 19 and the movable frame 17. A second guide slope 21 is provided at the connection between the guide rail 18 and the bottom of the trapezoidal rail 19. The telescopic end of the telescopic device 9 is provided with a connecting seat 10 connected to the punch 11. A guide post 23 is slidably passed through the connecting seat 10. The guide post 23 is slidably disposed in the guide rail 18. An elastic element is provided between the guide post 23 and the connecting seat 10.

[0031] The drive mechanism also includes a secondary control mechanism that is mounted on the mounting plate 15 and connected to the two sets of support plates 13. The secondary control mechanism converts the sliding of the mounting plate 15 into driving the sliding of the two sets of support plates 13. The secondary control mechanism includes a first drive column 14 that is mounted on the support plate 13 and slidably locked on the frame 1. Both sets of mounting plates 15 are fixedly connected to a first inclined frame 22, and the first drive column 14 is slidably locked in the first inclined frame 22.

[0032] When the punch 11 moves downward, the guide column 23 slides within the guide rail 18, which is in a vertical state. This prevents the mounting plate 15 and support plate 13 from opening, ensuring stable support for the material. After the stamping reaction is complete, the first drive column 14 can enter the trapezoidal track 19 only after the punch 11 rises a certain distance, facilitating the discharge of gas from the reaction chamber 2. Once the first drive column 14 passes the obstruction of the second guide inclined surface 21 and enters the trapezoidal track 19, the movable frame 17 can be controlled to slide back and forth via the two sets of inclined sides of the trapezoidal track 19. Once, during the reciprocating sliding process, the movable frame 17 can drive the two sets of support plates 13 to open and close once through the cooperation of the first drive column 14 and the first inclined frame 22, thereby facilitating the discharge of material residue in the reaction chamber 2. After the first drive column 14 is guided into the guide rail 18 by the first guide inclined surface 20, the mounting plate 15 and the support plate 13 remain closed, which facilitates the subsequent feeding work. This allows the device to perform continuous feeding and stamping without the need for manual cleaning of the inside of the reaction chamber 2, effectively improving the recycling efficiency.

[0033] like Figure 2 , 3 As shown in Figure 6, in this embodiment, a feeding unit is provided on the frame 1. The feeding unit includes a receiving frame 24 that communicates with the reaction chamber 2. A push plate 25 is slidably provided on the receiving frame 24. A feeding frame 26 is provided on the push plate 25. The feeding frame 26 can slide into the reaction chamber 2. A linkage component connected to the push plate 25 is provided on the punch 11. The linkage component converts the lifting and lowering of the punch 11 within a specified range into driving the push plate 25 to slide back and forth. A feeding plate 27 is slidably provided in the feeding frame 26. One end of the feeding plate 27 extends out of the feeding frame 26. A feeding mechanism connected to the feeding plate 27 is provided on the push plate 25. The feeding mechanism converts the sliding of the push plate 25 into driving the feeding plate 27 to slide back and forth.

[0034] The feeding mechanism includes a drive shaft 29 rotatably mounted on the push plate 25. A gear 30 is mounted at the end of the drive shaft 29. A rack 31 is mounted on the receiving frame 24, meshing with the gear 30. A transmission assembly connected to the feeding plate 27 is mounted on the drive shaft 29, converting the rotation of the drive shaft 29 into driving the feeding plate 27 to reciprocate. The transmission assembly includes a connecting rod 28, one end of which is hinged to the feeding plate 27, and the other end is eccentrically hinged to the drive shaft 29. The linkage assembly includes a crossbar 32 mounted on the punch 11, with a second drive column 33 at its end. A vertical frame 35 is laterally slidable on the receiving frame 24. The end of the drive shaft 29 passes through the vertical frame 35, which is connected to a second inclined frame 34. The second drive column 33 is slidably engaged within the second inclined frame 34.

[0035] Raw materials are continuously fed into the feeding frame 26. The raw materials fall onto the feeding plate 27. After the mounting plate 15 and support plate 13 open to discharge waste and close, the punch 11 continues to move upward. The second drive column 33 and the second inclined frame 34 can control the push plate 25 to slide on the receiving frame 24 and extend into the reaction chamber 2. The range of the punch 11's rise and fall without controlling the movement of the mounting plate 15 and support plate 13 is a specified range. During the sliding process, the push plate 25 drives the transmission shaft 29 to rotate through the cooperation of the gear 30 and rack 31. During rotation, the drive shaft 29 drives the feeding plate 27 to slide back and forth through the eccentrically hinged connecting rod 28, thereby evenly spreading the raw material on the bottom surface of the inner side of the reaction chamber 2. When the punch 11 descends within a specified range, it can control the push plate 25 to slide out of the reaction chamber 2. As the punch 11 continues to descend to below the receiving frame 24, it forms a sealed space with the reaction chamber 2, facilitating the supply of carbon dioxide. This achieves automated and synchronized feeding, eliminating the need for staff to control the material supply and further improving the recovery efficiency.

[0036] Specific usage and beneficial effects of the present invention: In operation, the device supplies dehumidified and ground plastic raw materials to the reaction chamber 2 via a feeding unit, ensuring even distribution of the raw materials on the carbon cloth surface within the chamber. The control device 9 then moves the punch 11 downwards into the chamber for sealing, opening the gas storage tank 3 to allow carbon dioxide gas to enter. A purging process is then performed to purge the air from the reaction chamber 2, maintaining an inert atmosphere. After purging, all gas valves are closed, and pretreatment begins. Synchronous pulse discharge is applied, simultaneously applying temperature and pressure pulses. The punch 11 continues its downward movement, applying initial pressure (approximately 5-20 MPa) to the loose waste plastic, compressing it into a dense sheet-like structure, significantly reducing interparticle voids and increasing the contact area. Subsequently, one or more low-intensity Joule pulses are applied, partially carbonizing the plastic surface and initially forming a conductive network throughout the material. This step aims to significantly improve the overall electrical and thermal conductivity of the material, laying the foundation for uniform and rapid heating in the subsequent main reaction stage. After the reaction, the waste plastic is converted into gaseous products under high temperature and pressure. The punch 11 moves upward a short distance, then discharges the high-pressure gas into the condensation and collection device for condensation and graded collection of pyrolysis products with different boiling points. The high-pressure environment provided by this device promotes heat conduction and physically inhibits material expansion caused by the volatilization of intermediate products, ensuring the stability of the electrothermal process and thus achieving uniform heating of plastic particles. The temperature uniformity of the waste plastic sample can be guaranteed. CO2 reaches or approaches a supercritical state under high temperature and pressure. Its excellent diffusivity and solvent properties help transfer heat to deeper layers of the material and can participate in the chemical reaction of carbon and hydrocarbon cracking free radicals, promoting the generation of syngas.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to the present invention, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A waste plastic resource recycling device, characterized in that, Including: The frame (1) is provided with a reaction chamber (2), and a first electrode plate (16) is provided at the bottom of the reaction chamber (2). The punch (11) is mounted on the frame (1) via a telescopic device (9), and a second electrode plate (12) is provided at its end. The first electrode plate (16) and the second electrode plate (12) are connected to the Joule pulse generator. A feeding unit is installed on the frame (1); The gas storage tank (3) is connected to the reaction chamber (2) via the gas inlet valve (4); and A condensation collection mechanism is connected to the reaction chamber (2).

2. The waste plastic resource recycling device according to claim 1, characterized in that, The condensation collection mechanism includes: The primary condenser (6) is connected to the reaction chamber (2) via the gas outlet valve (5); The secondary condenser (7) is connected to the primary condenser (6); and The gas collecting bottle (8) is connected to the secondary condenser (7).

3. The waste plastic resource recycling device according to claim 1, characterized in that: The bottom of the frame (1) is provided with a sliding mounting plate (15) and two sets of support plates (13). The first electrode plate (16) is provided in multiple sets and is located on the mounting plate (15) and the inner wall of the reaction chamber (2). The two sets of support plates (13) can slide relative to each other. The sliding direction of the support plate (13) is perpendicular to that of the mounting plate (15). The mounting plate (15) and the two sets of support plates (13) are connected to the punch (11) through a driving mechanism. The driving mechanism converts the rising of the punch (11) into driving the sliding opening and closing of the mounting plate (15) and the two sets of support plates (13).

4. The waste plastic resource recycling device according to claim 3, characterized in that, The driving mechanism includes: A primary control mechanism is provided on the punch (11) and connected to the mounting plate (15) to drive the mounting plate (15) to slide back and forth once when the punch (11) rises; and A secondary control mechanism is provided on the mounting plate (15) and connected to the two sets of support plates (13) to convert the sliding of the mounting plate (15) into driving the two sets of support plates (13) to slide.

5. The waste plastic resource recycling device according to claim 4, characterized in that, The primary control mechanism includes: A movable frame (17) is mounted on the mounting plate (15), and a guide rail (18) is provided on the movable frame (17). A trapezoidal track (19) is arranged on the movable frame (17), and its two ends are respectively connected to the guide track (18); The first guide ramp (20) is located at the connection between the top of the trapezoidal track (19) and the movable frame (17); The second guide ramp (21) is disposed on the guide rail (18) at the connection point with the bottom end of the trapezoidal rail (19); and A connecting seat (10) is provided at the telescopic end of the telescopic device (9) and connected to the punch (11). A guide post (23) is slidably passed through the connecting seat (10). The guide post (23) is slidably disposed in the guide rail (18). An elastic element is provided between the guide post (23) and the connecting seat (10).

6. The waste plastic resource recycling device according to claim 4, characterized in that, The secondary control mechanism includes: The first drive column (14) is disposed on the support plate (13) and slidably engaged on the frame (1); and The first inclined frame (22) has two sets, both of which are fixedly connected to the mounting plate (15), and the first drive column (14) is slidably locked inside the first inclined frame (22).

7. The waste plastic resource recycling device according to claim 1, characterized in that, The feeding unit includes: The receiving frame (24) is connected to the reaction chamber (2), and a push plate (25) is slidably disposed on the receiving frame (24). The feeding frame (26) is set on the push plate (25) and can slide into the reaction chamber (2); A linkage component is provided on the punch (11) and connected to the push plate (25) to convert the lifting and lowering of the punch (11) within a specified range into driving the push plate (25) to slide back and forth. A feeding plate (27) is slidably disposed within the feeding frame (26), with one end extending beyond the feeding frame (26); and A feeding mechanism is provided on the push plate (25) and connected to the feeding plate (27) to convert the sliding of the push plate (25) into driving the feeding plate (27) to slide back and forth.

8. A waste plastic resource recycling device according to claim 7, characterized in that, The feeding mechanism includes: The drive shaft (29) is rotatably mounted on the push plate (25), and a gear (30) is provided at its end. A rack (31) is disposed on the receiving frame (24) and meshes with the gear (30); and A transmission assembly is disposed on the transmission shaft (29) and connected to the feed plate (27) to convert the rotation of the transmission shaft (29) into driving the feed plate (27) to reciprocate.

9. A waste plastic resource recycling device according to claim 8, characterized in that: The transmission assembly includes a connecting rod (28), one end of which is hinged to the feeding plate (27), and the other end is eccentrically hinged to the transmission shaft (29).

10. A waste plastic resource recycling device according to claim 8, characterized in that, The linkage components include: A crossbar (32) is provided on the punch (11), and a second drive column (33) is provided at its end. The vertical frame (35) is slidably mounted on the receiving frame (24), and the end of the drive shaft (29) passes through the vertical frame (35); and The second inclined frame (34) is connected to the vertical frame (35), and the second drive column (33) is slidably engaged in the second inclined frame (34).

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