Energy-saving and efficient continuous plastic waste carbonization and oil refining equipment

Abstract

The application discloses an energy-saving and efficient continuous plastic garbage carbonization oil refining equipment, and relates to the technical field of plastic garbage treatment. The energy-saving and efficient continuous plastic garbage carbonization oil refining equipment can make the plastic swing to the furnace wall through the hollow pushing arc plate during the rotation of the reaction furnace body, so that the inside of the reaction furnace body is divided into a hollow layer and a material layer, and the material layer is stirred through the stirring paddle, on the one hand, the plastic can flow along the inner wall of the reaction furnace body, the heat conduction effect is improved, and the pyrolysis of the plastic is accelerated, on the other hand, the oil gas generated by the pyrolysis of the plastic can be quickly discharged through the hollow layer, the oil gas generated by the pyrolysis is prevented from being smothered in the plastic for secondary cracking, the oil yield is improved, the coking amount is reduced, and the continuous operation of the equipment is further adapted.

Description

Technical Field

[0001] This invention relates to the field of plastic waste treatment technology, specifically to an energy-efficient and high-performance continuous plastic waste carbonization and oil refining equipment. Background Technology

[0002] With the progress of the times and the significant improvement of people's living standards, and with the proposal of energy conservation, environmental protection, and resource recycling, efficient technologies are being used to process waste plastics. Carbonization refining processes can convert waste plastics into fuel oil and combustible gases, achieving resource recycling. This effectively controls white pollution, turns waste into treasure, and promotes the resource utilization of solid waste and green, low-carbon development. Thermal carbonization technology can pyrolyze plastics, recovering fuel oil, carbon black, and combustible gases, achieving full utilization of resources. It is a more thorough resource utilization method that combines economic and environmental benefits. Referring to the Chinese patent, "An Energy-Saving and High-Efficiency Continuous Plastic Waste Pyrolysis Refining Equipment" with publication number "CN207483673U", this patent points out that although the existing continuous pyrolysis refining equipment can realize continuous feeding, continuous slag discharge and continuous pyrolysis gasification of plastic waste, it has defects such as uneven heating of plastic, incomplete utilization of heat energy, easy adhesion to the wall causing carbon deposits, easy blockage of channels, low oil yield and poor oil quality. When the above-mentioned equipment performs continuous pyrolysis of plastics, the molten plastic will continue to flow and deposit at the bottom of the pyrolysis chamber, resulting in uneven heating of the molten plastic above and below. Furthermore, the deposited molten liquid will affect the discharge of oil and gas, leading to secondary cracking of oil and gas and a decrease in oil yield. To address these issues, we propose an energy-saving and efficient continuous plastic waste carbonization and refining equipment. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides an energy-saving and efficient continuous plastic waste carbonization and oil refining equipment, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an energy-saving and efficient continuous plastic waste carbonization and oil refining equipment, comprising a machine body, a heating module inside the machine body, a front end cover and a rear end cover fixed on both sides inside the machine body respectively, a reactor body rotatably connected between the front end cover and the rear end cover, a feed hopper and an exhaust pipe connected to the outside of the front end cover, the feed hopper being used to transport the crushed plastic to the reactor body, and an exhaust pipe being installed at the end of the rear end cover for outputting the carbon black produced after plastic pyrolysis; The reactor body is installed at an angle and has a drive assembly at the end for driving the reactor body to rotate inside the machine. Multiple lifting plates are fixedly installed inside the reactor body. The lifting plates are used to lift the plastic material while rotating with the reactor body. A central positioning rod is fixedly installed between the front end cover and the rear end cover. The central positioning rod is located inside the reactor body and is coaxial with it. Multiple hollow pusher arc plates are fixedly installed at the end of the central positioning rod. The hollow pusher arc plates are used to push the plastic and molten material onto the inner wall of the reactor body. Multiple annular positioning frames are fixedly installed at the end of the central positioning rod near the hollow pusher arc plate. Multiple material pushing blades are fixedly installed on the outer side of each annular positioning frame. The material pushing blades are installed alternately with the hollow pusher arc plate to cooperate with the lifting plate to push the plastic and molten material. Multiple end positioning rods are fixedly installed at the end of the central positioning rod away from the hollow pusher arc plate, and a scraper is fixedly installed at the end of the end positioning rod. The scraper is used to feed the carbon black produced after the plastic is melted.

[0005] Preferably, the drive assembly includes a transmission gear, which is fixedly sleeved on the end of the reactor body. A drive motor is fixedly installed inside the body, and a drive gear is fixedly sleeved on the output end of the drive motor. The drive gear and the transmission gear mesh with each other.

[0006] Preferably, a cavity is provided at one end of the central positioning rod near the feeding paddle. An oil and gas return pipeline communicating with the cavity is fixedly installed at the end of the central positioning rod. The oil and gas return pipeline is communicating with the exhaust pipeline and is used to transport part of the oil and gas discharged from the exhaust pipeline into the cavity. A connecting hole communicating with the cavity is provided inside the interior of the multiple annular positioning frames and the interior of the central positioning rod. A cylindrical hole is provided inside the interior of the multiple feeding paddles, and the cylindrical hole is communicating with the corresponding connecting hole. A number of air jet holes communicating with the cylindrical holes are provided at the end and side of the feeding paddles, so that the oil and gas can be sprayed out along the cross-section of the inner wall of the reactor and blow the melt away from the wall.

[0007] Preferably, the opening angle of the jet hole at the end of the feeding paddle is parallel to the inner wall of the reactor, and the opening angle of the jet hole on the side of the feeding paddle is adapted to the corresponding hollow pushing arc plate.

[0008] Preferably, the end of the oil and gas return pipeline is connected to a pressurization pump for pressurizing the oil and gas transported into the cavity.

[0009] Preferably, the end of the oil and gas return pipeline is equipped with an electric heating device for heating the oil and gas transported into the cavity.

[0010] Preferably, a spiral feeding mechanism is rotatably installed inside the feed hopper, which is used to push the crushed plastic from the feed hopper into the interior of the reactor body.

[0011] Preferably, an arc-shaped limiting frame is fixedly installed at the middle of the inner side of the reactor body. Multiple gravity balls are placed inside the reactor body, and multiple elastic sheets are fixedly installed on the outer side of each gravity ball. The gravity balls are used to roll irregularly inside the reactor body due to gravity when the reactor body rotates. In conjunction with multiple hollow pusher arc plates, the molten material is pushed outward, which ensures that the gravity balls always roll in contact with the molten material against the inner wall of the reactor body. The arc-shaped limiting frame is used to limit the gravity balls, allowing them to move back and forth inside the reactor body.

[0012] Preferably, the inner side of the arc-shaped limiting frame is provided with multiple guide slots for allowing the molten plastic to pass through.

[0013] Preferably, the plurality of gravity balls are of the same size and their diameter is smaller than the straight-line distance from the end of the hollow pusher arc plate to the inner wall of the reactor.

[0014] This invention provides an energy-efficient and high-performance continuous plastic waste carbonization and oil refining equipment. Compared with existing technologies, it has the following advantages: (1) This energy-saving and efficient continuous plastic waste carbonization oil refining equipment, through the cooperation of hollow pusher arc plate and pusher blade with lifting plate, can throw plastic to the furnace wall through hollow pusher arc plate during the rotation of the reactor body, so that the reactor body is divided into hollow layer and material layer. The pusher blade can realize the pusher treatment of the material layer. On the one hand, it can make the plastic flow along the inner wall of the reactor body, improve the heat conduction effect, and accelerate the pyrolysis of plastic. On the other hand, it can make the oil and gas generated by plastic pyrolysis quickly discharged through the hollow layer, avoid the oil and gas generated by pyrolysis trapped in the plastic for secondary cracking, increase the oil output while reducing the amount of coking, and further adapt to the continuous operation of the equipment.

[0015] (2) This energy-saving and efficient continuous plastic waste carbonization and oil refining equipment, through the cooperation of the oil and gas return pipeline, can spray oil and gas through the jet hole along the cross-section of the inner wall of the reactor, blow away the melt on the inner wall of the reactor, so that the wall surface cannot form a hard coke layer, further reducing the amount of coking. At the same time, the oil and gas sprayed between the molten material and the furnace wall can form an air cushion layer, so that the plastic is locally fluidized, which can effectively reduce the resistance between the hollow pusher arc plate and the inner wall of the furnace, and improve the flow effect of the plastic molten material.

[0016] (3) This energy-saving and efficient continuous plastic waste carbonization and oil refining equipment, through the setting of arc-shaped limit frame and gravity ball, can keep the gravity ball in the material layer and make irregular movements when the reaction furnace rotates. As the gravity ball rolls, impacts, and scrapes the furnace wall and molten plastic inside the material layer under the action of gravity, it improves the plastic pyrolysis effect while further ensuring anti-sticking and anti-coking. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of cross-section structure; Figure 3 This is a schematic cross-sectional view of the reactor body of the present invention; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the hollow pusher arc plate and the pusher blade in this invention; Figure 7 This is a cross-sectional view of the material feeding paddle of the present invention.

[0018] In the diagram: 1. Machine body; 2. Front cover; 3. Rear cover; 301. Discharge pipe; 4. Reactor body; 5. Heating module; 6. Feed hopper; 601. Spiral feeding mechanism; 7. Exhaust pipe; 8. Drive motor; 801. Drive gear; 9. Transmission gear; 10. Lifting plate; 11. Central positioning rod; 1101. Oil and gas return pipeline; 1102. Pressurization pump; 1103. Cavity; 12. Hollow pushing arc plate; 13. Annular positioning frame; 1301. Connecting hole; 14. Feeding paddle; 1401. Cylindrical hole; 1402. Air jet hole; 15. Gravity ball; 1501. Elastic sheet; 1502. Arc-shaped limiting frame; 1503. Guide groove; 16. End positioning rod; 1601. Scraper sheet. Detailed Implementation

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

[0020] Please see Figures 1-7 The present invention provides two technical solutions, specifically including the following embodiments: Example 1: In this embodiment of the invention, an energy-saving and efficient continuous plastic waste carbonization and oil refining equipment includes a body 1, a heating module 5 inside the body 1, a front cover 2 and a rear cover 3 fixed on both sides inside the body 1 respectively, a reactor body 4 rotatably connected between the front cover 2 and the rear cover 3, a feed hopper 6 and an exhaust pipe 7 connected to the outside of the front cover 2, the feed hopper 6 is used to transport the crushed plastic to the reactor body 4, and an exhaust pipe 301 is installed at the end of the rear cover 3 to output the carbon black produced after the plastic is pyrolyzed. Specifically, the reactor body 4 is installed at an angle and has a drive assembly at the end for driving the reactor body 4 to rotate inside the machine body 1. The angle of inclination of the reactor body 4 is 1°-3°. The front cover 2 is located at the higher end of the reactor body 4, and the rear cover 3 is located at the lower end of the reactor body 4. Multiple lifting plates 10 are fixedly installed inside the reactor body 4. The lifting plates 10 are used to lift the plastic material while rotating with the reactor body 4. Specifically, the heating module 5 is an existing device located on the outer surface of the reactor body 4. Heating is achieved by circulating the high-temperature gas generated by combustion in the independent combustion chamber into the heating module 5. The high-temperature gas range is 850℃–950℃. The independent combustion chamber is an existing device and is not shown in the figure. Specifically, when carbonizing crushed plastic, the reactor body 4 is driven to rotate by the drive assembly, while the front cover 2 and rear cover 3 remain stationary. The crushed plastic is fed into the reactor body 4 through the feed hopper 6. The plastic moves from high to low as the reactor 4 rotates. During the movement, the plastic gradually melts and then pyrolyzes until it forms carbon black, which is then discharged through the discharge pipe 301. The oil and gas generated during melting and pyrolysis are discharged through the exhaust pipe 7. The discharged oil and gas are condensed by the condenser to form fuel oil. The non-condensable combustible gas is returned to the independent combustion chamber for combustion. The combustion flue gas is desulfurized and purified before being discharged, realizing continuous carbonization operation. The front cover 2 and rear cover 3 are sealed to the reactor body 4 through the existing end shaft seal to prevent gas leakage.

[0021] Furthermore, a central positioning rod 11 is fixedly installed between the front end cover 2 and the rear end cover 3. The central positioning rod 11 is located inside the reactor body 4 and is coaxial with it. Multiple hollow pusher arc plates 12 are fixedly installed at the end of the central positioning rod 11. The hollow pusher arc plates 12 are used to push the plastic and molten material to the inner wall of the reactor body 4. Multiple annular positioning frames 13 are fixedly installed at the end of the central positioning rod 11 near the hollow pusher arc plate 12. Multiple pusher blades 14 are fixedly installed on the outer side of each annular positioning frame 13. The pusher blades 14 are installed alternately with the hollow pusher arc plate 12 to cooperate with the lifting plate 10 to push the plastic and molten material. Specifically, when the reactor body 4 rotates and the lifting plate 10 lifts the plastic, the central positioning rod 11 remains stationary. At this time, the multiple hollow pushing arc plates 12 installed at the end of the central positioning rod 11 can rotate relative to each other inside the reactor body 4. The hollow pushing arc plates 12 are arc-shaped and have expanded ends. (Refer to...) Figures 1-7 During the rotation of the reactor body 4, the hollow pusher arc plate 12 contacts the plastic, pushing it towards the inner wall of the reactor body 4. This creates a hollow structure near the center of the positioning rod 11 inside the reactor body 4, dividing the interior of the reactor body 4 into a hollow layer and a material layer. The material layer is located near the inner wall of the reactor body 4, while the hollow layer is at the axial center of the reactor body 4. The plastic being pushed is positioned within the material layer and moves towards the lower end as the reactor body 4 rotates until it melts and then pyrolyzes, preventing the molten plastic from settling. This ensures the plastic remains in a constant position. In the material layer, the plastic is kept in constant contact with the inner wall of the reactor body 4 for flow. Since the heating of the reactor body 4 is achieved by heat conduction through contact between high-temperature gas and the surface of the reactor body 4, the pyrolysis effect of the plastic inside the reactor body 4 can be improved. At the same time, through the cooperation of multiple feeding paddles 14, the plastic in the material layer can be stirred, further accelerating the pyrolysis and carbonization effect of the plastic. During the pyrolysis and carbonization process of the plastic, the generated oil and gas can be quickly separated from the plastic and discharged through the hollow layer, avoiding the oil and gas generated by pyrolysis from being trapped in the plastic for secondary cracking, increasing the oil output while reducing the amount of coking, and further adapting to the continuous operation of the equipment.

[0022] Furthermore, a plurality of end positioning rods 16 are fixedly installed at the end of the central positioning rod 11 away from the hollow pusher arc plate 12, and a scraper blade 1601 is fixedly installed at the end of the end positioning rod 16. The scraper blade 1601 is used to push the carbon black generated after the plastic is melted. Specifically, when the pyrolyzed plastic carbonizes to form carbon black, multiple scraper blades 1601 scrape off the carbon black as they move along the inner wall of the reactor body 4.

[0023] Specifically, the drive assembly includes a transmission gear 9, which is fixedly sleeved at the end of the reactor body 4. A drive motor 8 is fixedly installed inside the body 1. A drive gear 801 is fixedly sleeved at the output end of the drive motor 8. The drive gear 801 meshes with the transmission gear 9. The drive motor 8 is an existing device used to drive the reactor body 4 to rotate through the cooperation of the drive gear 801 and the transmission gear 9.

[0024] Furthermore, a cavity 1103 is provided at one end of the middle positioning rod 11 near the feeding paddle 14. An oil and gas return pipeline 1101 is fixedly installed at the end of the middle positioning rod 11 and communicates with the cavity 1103. The oil and gas return pipeline 1101 is communicated with the exhaust pipeline 7 and is used to transport part of the oil and gas discharged from the exhaust pipeline 7 into the cavity 1103. A connecting hole 1301 communicating with the cavity 1103 is provided inside the multiple annular positioning frames 13 and the middle positioning rod 11. A cylindrical hole 1401 is provided inside the multiple feeding paddles 14 and the cylindrical hole 1401 is connected with the corresponding connecting hole 1301. A multiple jet hole 1402 communicating with the cylindrical hole 1401 is provided at the end and side of the feeding paddle 14, so that the oil and gas can be sprayed out along the inner wall of the reactor body 4 and blow the melt away from the wall. Furthermore, the opening angle of the jet hole 1402 at the end of the feeding paddle 14 is parallel to the inner wall of the reactor body 4, and the opening angle of the jet hole 1402 on the side of the feeding paddle 14 is adapted to the corresponding hollow pushing arc plate 12. Specifically, oil and gas are transported to the cavity 1103 through the oil and gas return pipeline 1101, and then can be ejected through the connecting hole 1301 and the cylindrical hole 1401 until they are ejected through the jet hole 1402. As the oil and gas are ejected along the inner wall of the reactor body 4 through the jet hole 1402 at the end of the feeding paddle 14, the melt on the inner wall of the reactor body 4 can be blown away, so that a hard coke layer cannot be formed on the wall surface, further reducing the amount of coking. At the same time, the oil and gas are sprayed between the molten material and the furnace wall to form an air cushion layer, which locally fluidizes the plastic and effectively reduces the resistance between the hollow pushing arc plate 12 and the inner wall of the reactor body 4. As the oil and gas are ejected through the jet hole 1402 on the side of the feeding paddle 14, the molten material adhering to the surface of the corresponding hollow pushing arc plate 12 can be blown off, thereby reducing the molten material residue in the hollow layer. A pressurizing pump 1102 is connected to the end of the oil and gas return pipeline 1101 to pressurize the oil and gas delivered to the cavity 1103. The pressurizing pump 1102 is an existing device and is connected to the exhaust pipeline 7 and the middle positioning rod 11 through the oil and gas return pipeline 1101. An electric heating device is installed at the end of the oil and gas return pipeline 1101 to heat the oil and gas transported into the cavity 1103. The electric heating device is an existing electric heater equipment used to heat the oil and gas, so as to avoid condensation during the process of being injected into the reactor body 4, which would cause the jet hole 1402 to be blocked. Also, oil and gas with too low a temperature will affect the local pyrolysis in the furnace and the oil yield. The oil and gas can also be heated by the flue gas waste heat coil. The oil and gas temperature range is controlled between 300℃ and 380℃.

[0025] Specifically, a spiral feeding mechanism 601 is installed inside the feed hopper 6. The spiral feeding mechanism 601 is used to push the crushed plastic from the feed hopper 6 into the reactor body 4. The spiral feeding mechanism 601 is an existing spiral feeding device, which will not be described in detail here.

[0026] Example 2: Based on Example 1, an arc-shaped limiting frame 1502 is fixedly installed at the middle of the inner side of the reactor body 4. Multiple gravity balls 15 are placed inside the reactor body 4. Multiple elastic sheets 1501 are fixedly installed on the outer side of each gravity ball 15. The gravity balls 15 are used to roll irregularly inside the reactor body 4 due to gravity when the reactor body 4 rotates. In conjunction with multiple hollow pusher arc plates 12, the molten material is pushed outward, so that the gravity balls 15 always keep in contact with the inner wall of the reactor body 4 and roll in contact with the molten material. The arc-shaped limiting frame 1502 is used to limit the gravity balls 15, so that the gravity balls 15 can move back and forth inside the reactor body 4. The inner side of the arc-shaped limiting frame 1502 is provided with multiple guide slots 1503 for allowing the molten plastic to pass through; Multiple gravity balls 15 are the same size and their diameter is smaller than the straight-line distance from the end of the hollow pusher arc plate 12 to the inner wall of the reactor body 4; refer to Figure 3 , Figure 5 The arc-shaped limiting frame 1502 is a closed arc-shaped piece that forms a rolling channel for the gravity ball 15 with the furnace wall. When the reactor body 4 drives the arc-shaped limiting frame 1502 to rotate inside it, it can push the gravity ball 15 to move back and forth inside the reactor body 4. As the reactor body 4 rotates, the gravity ball 15 can always be located in the material layer and keep in contact with the inner wall of the reactor body 4. It also drives the multiple elastic thin plates 1501 mounted on the outside to move irregularly. Together with the hollow pusher arc plate 12, it forms a strong stirring, which allows the gravity ball 15 to roll, impact, and scrape the furnace wall and molten plastic under the action of gravity. The gravity ball 15 can always be located in the material layer, which improves the pyrolysis effect of plastic and further ensures anti-sticking and anti-coking. An arc-shaped limiting frame 1502 is set on the inner wall of the reactor body 4 to form a rolling channel with the furnace wall. The gravity ball 15 is restricted to move within this channel. In conjunction with the hollow pusher arc plate 12 to push the material outward, the hollow layer and the material layer are formed, so that the gravity ball 15 can always be located in the material layer, ensuring that its falling trajectory is isolated from the stirring area of ​​the hollow pusher arc plate 12, so as to achieve non-interference, no collision and no jamming of the movement. The gravity ball 15 is located in the middle of the inner side of the reactor body 4, that is, the pyrolysis section of the plastic. From left to right, that is, from the front cover 2 to the rear cover 3, the interior of the reactor body 4 consists of the melting section, the pyrolysis section, and the carbon black section. After the plastic enters the interior of the reactor body 4 through the front cover 2, it gradually melts into a liquid state by heating, and then continues to flow to the pyrolysis section for pyrolysis reaction, until it reaches the carbon black section to form solid slag.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. An energy-efficient and high-performance continuous plastic waste carbonization and oil refining equipment, comprising a body (1), wherein a heating module (5) is provided inside the body (1), characterized in that: The machine body (1) has a front cover (2) and a rear cover (3) fixed on both sides inside. A reactor body (4) is rotatably connected between the front cover (2) and the rear cover (3). A feed hopper (6) and an exhaust pipe (7) are connected to the outside of the front cover (2). The feed hopper (6) is used to transport the crushed plastic to the reactor body (4). An exhaust pipe (301) is installed at the end of the rear cover (3) to output the carbon black generated after the plastic is cracked. The reactor body (4) is installed at an incline and has a drive assembly at the end for driving the reactor body (4) to rotate inside the machine body (1). Multiple lifting plates (10) are fixedly installed inside the reactor body (4). The lifting plates (10) are used to lift the plastic material while rotating with the reactor body (4). A central positioning rod (11) is fixedly installed between the front end cover (2) and the rear end cover (3). The central positioning rod (11) is located inside the reactor body (4) and is coaxial with it. Multiple hollow pusher arc plates (12) are fixedly installed at the end of the central positioning rod (11). The hollow pusher arc plates (12) are used to push plastic and molten material to the inner wall of the reactor body (4). Multiple annular positioning frames (13) are fixedly installed at the end of the central positioning rod (11) near the hollow pusher arc plate (12). Multiple pusher blades (14) are fixedly installed on the outer side of the annular positioning frames (13). The pusher blades (14) are installed alternately with the hollow pusher arc plate (12) to cooperate with the lifting plate (10) to push plastic and molten material. Multiple end positioning rods (16) are fixedly installed at the end of the central positioning rod (11) away from the hollow pusher arc plate (12), and a scraper blade (1601) is fixedly installed at the end of the end positioning rod (16). The scraper blade (1601) is used to push the carbon black generated after the plastic is melted.

2. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 1, characterized in that: The drive assembly includes a transmission gear (9), which is fixedly sleeved on the end of the reactor body (4). A drive motor (8) is fixedly installed inside the body (1). A drive gear (801) is fixedly sleeved on the output end of the drive motor (8). The drive gear (801) meshes with the transmission gear (9).

3. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 1, characterized in that: A cavity (1103) is provided at one end of the central positioning rod (11) near the feeding paddle (14). An oil and gas return pipeline (1101) communicating with the cavity (1103) is fixedly installed at the end of the central positioning rod (11). The oil and gas return pipeline (1101) is communicating with the exhaust pipeline (7) and is used to transport part of the oil and gas discharged from the exhaust pipeline (7) into the cavity (1103). The interior of the multiple annular positioning frames (13) and the central positioning rod (11) Each of the internal parts is provided with a connecting hole (1301) that communicates with the cavity (1103). Each of the multiple feeding paddles (14) is provided with a cylindrical hole (1401) and the cylindrical hole (1401) is connected to the corresponding connecting hole (1301). The ends and sides of the feeding paddles (14) are provided with multiple air jet holes (1402) that are connected to the cylindrical holes (1401), so that the oil and gas can be sprayed out along the inner wall of the reactor body (4) and blow the melt away from the wall.

4. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 3, characterized in that: The opening angle of the jet hole (1402) at the end of the feeding paddle (14) is parallel to the inner wall of the reactor body (4), and the opening angle of the jet hole (1402) on the side of the feeding paddle (14) is adapted to the corresponding hollow pusher arc plate (12).

5. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 3, characterized in that: The end of the oil and gas return pipeline (1101) is connected to a pressurization pump (1102) for pressurizing the oil and gas transported to the cavity (1103).

6. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 5, characterized in that: The end of the oil and gas return pipeline (1101) is equipped with an electric heating device for heating the oil and gas transported to the cavity (1103).

7. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 1, characterized in that: The feed hopper (6) is equipped with a rotating spiral pusher mechanism (601), which is used to push the crushed plastic from the feed hopper (6) into the reactor body (4).

8. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 1, characterized in that: An arc-shaped limiting frame (1502) is fixedly installed in the middle of the inner side of the reactor body (4). Multiple gravity balls (15) are placed inside the reactor body (4). Multiple elastic sheets (1501) are fixedly installed on the outer side of each gravity ball (15). The gravity balls (15) are used to roll irregularly inside the reactor body (4) due to gravity when the reactor body (4) rotates. With the help of multiple hollow pusher arc plates (12), the molten material is pushed outward, so that the gravity balls (15) always stick to the inner wall of the reactor body (4) and roll in contact with the molten material. The arc-shaped limiting frame (1502) is used to limit the gravity balls (15) so that the gravity balls (15) can move back and forth inside the reactor body (4).

9. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 8, characterized in that: The inner side of the arc-shaped limiting frame (1502) is provided with multiple guide slots (1503) for allowing the molten plastic to pass through.

10. The energy-saving and efficient continuous plastic waste carbonization and oil refining equipment according to claim 9, characterized in that: The multiple gravity balls (15) are the same size and their diameter is smaller than the straight distance from the end of the hollow pusher arc plate (12) to the inner wall of the reactor body (4).

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