Integrated waste plastic recycling device

The system addresses the inefficiency of heat utilization in plastic recycling by collecting and recycling heat from the compression process, improving heating efficiency and reducing energy consumption.

CN120307510AInactive Publication Date: 2025-07-15CHENGFA GREEN RING PLASTIC IND (HEBEI) CO LTD
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Patent Information

Application Number
CN202510590186.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2025-07-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, the heat generated by the waste plastic recycling device during the compression process is not effectively utilized, resulting in high heat loss and temperature, affecting the processing efficiency.

Method used

The extrusion device and positioning device are combined with the compressor system to collect heat through the air extraction tank and the U-shaped tank, and the heat is heated by the gas conveying system and used for heating in the recovery rack to realize the recycling of heat.

Benefits of technology

Effectively collect and utilize the heat generated when compressing plastics, reduce heating time, improve heating temperature and efficiency, and improve the overall efficiency of plastic recycling and treatment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120307510A_ABST
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Abstract

The invention discloses a waste plastic integrated recycling device which comprises a recycling frame, the recycling frame comprises a discharging opening, a smashing mechanism is arranged in the discharging opening, a vibrating plate is arranged at the lower end of the discharging opening, a conveying belt is arranged at the lower end of the vibrating plate, and a heating box is arranged at the lower end of the conveying belt. And a falling pipe is arranged at one end of the conveying belt, an extrusion device is arranged at the lower end of the falling pipe, a forming box is arranged on one side of the extrusion device, a second conveying pipe is arranged on the outer side of the forming box, and one end of the second conveying pipe communicates with the heating box. Heat generated during plastic compression can be collected, and the collected heat is further heated and then conveyed into the recycling frame to heat objects in the recycling frame. And when the first hydraulic rod extrudes the plastic into the extrusion box, the temperature of the plastic is increased due to pressure, and then the extrusion sheet and the positioning plate are heated. And the first air compressor can extract air from one side of the extrusion sheet for cooling. And the second air compressor can drive air to blow into the clamping piece and the positioning plate.
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Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, and particularly to an integrated recycling and treatment device for waste plastics. Background Art

[0002] Plastic recycling refers to the process of converting waste plastics into reusable raw materials or products through a series of treatment processes. In recent years, the global plastic pollution problem has become increasingly severe, and plastic recycling has become the focus of national policies.

[0003] Searching the prior art, the publication number CN118024459A discloses a waste plastic bottle recycling and processing device and a recycling and processing method. It includes a box body, a feeding hopper is connected to the top surface of the box body, and the feeding hopper is connected with a crushing component; an odor purification component is arranged on the top surface of the box body, a hollow plate is connected to the inner wall of the box body, the hollow plate is inclined, and a flushing component and an air drying component are arranged on the bottom surface of the hollow plate; a conveying component is connected to the inner wall of the box body; a filtering component is arranged below the conveying component; a packing component is connected to the right side of the box body.

[0004] In the comparative document, the heat conduction of the heating pipe is used to make the temperature in the collection box relatively high, which is convenient for softening the plastic bottle fragments. At the same time, the thrust of the push plate is used to make the plastic fragments adhere together to form plastic small pieces, making the packaging of the treated waste plastic bottles more convenient. However, the heat generated by compression is not well utilized, resulting in heat loss and the temperature remaining at a relatively high level. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated recycling and treatment device for waste plastics to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] It includes a recycling rack, the recycling rack includes a feeding port, a crushing mechanism is arranged inside the feeding port, a vibrating plate is arranged at the lower end of the feeding port, a conveyor belt is arranged at the lower end of the vibrating plate, a heating box is arranged at the lower end of the conveyor belt, a falling pipe is arranged at one end of the conveyor belt, an extrusion device is arranged at the lower end of the falling pipe, a forming box is arranged on one side of the extrusion device, and a second transmission pipe is arranged outside the forming box body, and one end of the second transmission pipe is communicated with the heating box.

[0008] The extrusion device includes an extrusion box, a collection port is arranged at the upper end of the extrusion box, the collection port is arranged at the lower end of the conveyor belt, a first hydraulic rod is arranged inside the extrusion box, an extrusion sheet is arranged at one end of the first hydraulic rod, and an air extraction groove is arranged on the extrusion sheet.

[0009] Preferably, an air extraction groove is formed at one end of the extrusion sheet close to the first hydraulic rod. The air extraction groove is adjacent to the outer edge of the extrusion sheet. A connection groove is provided at the bottom of the air extraction groove. The connection groove is cross-shaped. One end of the connection groove is provided with a first transmission pipe. A bent pipe is provided in the middle of the first transmission pipe. One end of the bent pipe is provided with a first air compressor. The end of the first air compressor where the first transmission pipe is located is communicated with the heating box.

[0010] Preferably, a positioning device is movably connected inside the forming box. The positioning device includes a positioning plate. A second hydraulic rod is provided on one side of the positioning plate. A positioning convex is provided at one end of the positioning plate.

[0011] Preferably, a plurality of U-shaped grooves are formed inside the positioning plate. The two inlets of the U-shaped grooves are respectively connected with a first loop and a second loop. U-shaped grooves are also provided inside the positioning convex. The U-shaped grooves inside the positioning convex are arranged in an up-and-down stacked manner. A first vertical pipe and a second vertical pipe are respectively provided at both ends of the U-shaped grooves inside the positioning convex.

[0012] Preferably, the first vertical pipe and the second vertical pipe are respectively communicated with the first loop and the second loop. A return air pipe is provided at one end of the first vertical pipe. One end of the second transmission pipe extends out of the forming box.

[0013] Preferably, a plurality of heating sheets are provided inside the heating box. One end of the heating box is communicated with the first transmission pipe and the second transmission pipe. An air outlet is formed at the other end of the heating box. A plurality of exhaust fans are provided inside the air outlet. The air outlet is arranged at the lower end of the conveyor belt.

[0014] Preferably, the upper end of the conveyor belt is communicated with the second transmission pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: It can collect the heat generated during the compression of plastics, and after further heating the collected heat, it is transported into the recycling rack to heat the objects in the recycling rack. When the first hydraulic rod extrudes the plastic into the extrusion box, the plastic will be heated due to the pressure, which in turn causes the extrusion sheet and the positioning plate to be heated. The first compressor can extract air from one side of the extrusion sheet for cooling. The second compressor will drive the air to blow into the clamping sheet and the positioning plate. The first compressor can extract air, so that the air extraction grooves on the extrusion sheet can extract the air in the extrusion box, pass the air through the extrusion sheet, and take away the heat generated by the extrusion of the object by the extrusion sheet through the gas. The second compressor can pass the gas through the positioning plate. The gas is input into the first vertical pipe through the return air pipe, and then flows into one opening of the U-shaped groove through the first vertical pipe. The gas flows in the U-shaped groove to cool the heated extrusion sheet, so that the heat accumulated in the extrusion sheet is taken away by the gas and flows out from the other end of the U-shaped groove. Finally, it is transported to the second transmission pipe through the second return ring. The gas output from the first transmission pipe and the second transmission pipe is finally heated by the heating box. The gas itself already has a relatively high temperature, which can reduce the heating time and increase the heating temperature, and finally is transported into the heating box through the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 is a rear structural schematic diagram of the present invention;

[0018] Figure 3 is a sectional structural schematic diagram of the present invention;

[0019] Figure 4 is a sectional structural schematic diagram of the extrusion sheet of the present invention;

[0020] Figure 5 is a sectional structural schematic diagram of the positioning plate of the present invention;

[0021] Figure 6 is a rear structural schematic diagram of the positioning plate of the present invention.

[0022] In the figure: 1, recycling rack; 2, blanking port; 3, crushing mechanism; 4, vibrating plate; 5, conveyor belt; 6, heating box; 7, downpipe; 8, extrusion device; 9, forming box; 10, second transmission pipe; 11, extrusion box; 12, collection port; 13, first hydraulic rod; 14, air outlet; 15, extrusion sheet; 16, air extraction groove; 17, connection groove; 18, first transmission pipe; 19, bending pipe; 20, first compressor; 21, first return ring; 22, second return ring; 23, first vertical pipe; 24, second vertical pipe; 25, heating sheet; 26, positioning plate; 27, positioning device. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 6 , the embodiments provided by the present invention:

[0025] Embodiment: It includes a recycling rack 1. The recycling rack 1 includes a blanking port 2, and a crushing mechanism 3 is arranged inside the blanking port 2. The crushing mechanism 3 can crush waste plastics, facilitating compression. A vibrating plate 4 is arranged at the lower end of the blanking port 2, and the vibrating plate 4 can convey materials through vibration. A conveyor belt 5 is arranged at the lower end of the vibrating plate 4, and a heating box 6 is arranged at the lower end of the conveyor belt 5. The heating box 6 can heat the air. A falling pipe 7 is arranged at one end of the conveyor belt 5, and an extrusion device 8 is arranged at the lower end of the falling pipe 7. The extrusion device 8 can extrude and fix plastics. A forming box 9 is arranged on one side of the extrusion device 8, and a second transmission pipe 10 is arranged on the outer side of the forming box 9 body. One end of the second transmission pipe 10 is communicated with the heating box 6.

[0026] The extrusion device 8 includes an extrusion box 11. A collection port 12 is arranged at the upper end of the extrusion box 11. The collection port 12 is arranged at the lower end of the conveyor belt 5. A first hydraulic rod 13 is arranged inside the extrusion box 11. An extrusion sheet 15 is arranged at one end of the first hydraulic rod 13, and an air extraction groove 16 is opened on the extrusion sheet 15. The first hydraulic rod 13 can push the extrusion sheet 15 to extrude and compress plastics.

[0027] An air extraction groove 16 is opened at one end of the extrusion sheet 15 close to the first hydraulic rod 13. The air extraction groove 16 is close to the outer edge of the extrusion sheet 15. A connection groove 17 is arranged at the bottom of the air extraction groove 16. The connection groove 17 is cross-shaped. A first transmission pipe 18 is arranged at one end of the connection groove 17. A bent pipe 19 is arranged in the middle of the first transmission pipe 18. A first air compressor 20 is arranged at one end of the bent pipe 19. One end of the first air compressor 20 provided with the first transmission pipe 18 is communicated with the heating box 6. The first air compressor 20 can pass gas through the air extraction groove 16 and through the bent pipe 19 to cool the extrusion sheet 15 and take away the heat generated by extrusion.

[0028] A positioning device 27 is movably connected inside the forming box 9. The positioning device 27 includes a positioning plate 26. A second hydraulic rod is arranged on one side of the positioning plate 26, and a positioning convex is arranged at one end of the positioning plate 26.

[0029] A plurality of U-shaped grooves are formed inside the positioning plate 26. A first loop ring 21 and a second loop ring 22 are respectively connected to two inlets of the U-shaped groove. A U-shaped groove is also provided inside the positioning convex. The U-shaped grooves inside the positioning convex are arranged in an up-and-down stacked manner. First vertical pipes 23 and second vertical pipes 24 are respectively provided at two ends of the U-shaped groove inside the positioning protrusion. Gas is sent out through the second transfer pipe 10 into the first vertical pipe 23, and finally moves into the U-shaped groove through the first loop ring 21 to cool the positioning convex and the positioning plate 26, and the heat generated by compression is taken away through the second loop ring 22.

[0030] The first vertical pipe 23 and the second vertical pipe 24 are respectively communicated with the first loop ring 21 and the second loop ring. A return air pipe is provided at one end of the first vertical pipe 23. One end of the second transfer pipe 10 extends out of the molding box 9.

[0031] A plurality of heating sheets 25 are provided inside the heating box 6. One end of the heating box 6 is communicated with the first transfer pipe 18 and the second transfer pipe 10. An air outlet 14 is formed at the other end of the heating box 6. A plurality of exhaust fans are provided inside the air outlet 14. The air outlet 14 is arranged at the lower end of the conveyor belt 5.

[0032] The upper end of the conveyor belt 5 is communicated with the second transfer pipe 10.

[0033] During operation, plastics are thrown into the recycling rack 1 through the feeding port 2. The plastics are crushed by the crushing mechanism 3, and then conveyed to the downpipe 7 through the vibrating plate 4 and the conveyor belt 5. Then when a hydraulic rod extrudes the plastics into the extrusion box 11, the plastics will be heated due to the pressure, and further the extrusion sheet 15 and the positioning plate 26 will be heated up. The first compressor 20 can extract air from one side of the extrusion sheet 15 for cooling. The second compressor will drive air to blow into the clamping sheet and the positioning plate 26. The first compressor 20 can extract air, so that the air extraction grooves 16 on the extrusion sheet 15 can extract the air inside the extrusion box 11, pass the air through the extrusion sheet 15, and take away the heat generated by the extrusion of the extrusion sheet 15 by the gas. The second compressor can pass the gas through the positioning plate 26. The gas is input into the first vertical pipe 23 through the return air pipe, and then reaches an opening of the U-shaped groove through the first vertical pipe 23. The gas flows in the U-shaped groove to cool the heated extrusion sheet 15, so that the heat accumulated in the extrusion sheet 15 is taken away by the gas and flows out from the other end of the U-shaped groove. Finally, it is conveyed to the second transfer pipe 10 through the second loop ring. The gases output from the first transfer pipe 18 and the second transfer pipe 10 are finally heated by the heating box 6. The gas itself already has a relatively high temperature, which can reduce the heating time and increase the heating temperature, and finally is conveyed into the heating box 6 through the air outlet 14.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An integrated recycling and treatment device for waste plastics, comprising a recycling rack (1), characterized in that: The recycling rack (1) includes a blanking port (2). A crushing mechanism (3) is provided inside the blanking port (2). A vibrating plate (4) is provided at the lower end of the blanking port (2). A conveyor belt (5) is provided at the lower end of the vibrating plate (4). A heating box (6) is provided at the lower end of the conveyor belt (5). A dropping pipe (7) is provided at one end of the conveyor belt (5). An extrusion device (8) is provided at the lower end of the dropping pipe (7). A forming box (9) is provided on one side of the extrusion device (8). A second transmission pipe (10) is provided on the outer side of the forming box (9). One end of the second transmission pipe (10) is communicated with the heating box (6).

2. The integrated recycling and treatment device for waste plastics according to claim 1, characterized in that: The extrusion device (8) includes an extrusion box (11). A collection port (12) is provided at the upper end of the extrusion box (11). The collection port (12) is provided at the lower end of the conveyor belt (5). A first hydraulic rod (13) is provided inside the extrusion box (11). An extrusion piece (15) is provided at one end of the first hydraulic rod (13). An air extraction groove (16) is formed on the extrusion piece (15).

3. The integrated recycling and treatment device for waste plastics according to claim 2, wherein: An air extraction groove (16) is formed at one end of the extrusion piece (15) close to the first hydraulic rod (13). The air extraction groove (16) is close to the outer edge of the extrusion piece (15). A connection groove (17) is provided at the bottom of the air extraction groove (16). The connection groove (17) is cross-shaped. A first transmission pipe (18) is provided at one end of the connection groove (17). A bent pipe (19) is provided in the middle of the first transmission pipe (18). A first air compressor (20) is provided at one end of the bent pipe (19). The end of the first air compressor (20) provided with the first transmission pipe (18) is communicated with the heating box (6).

4. An integrated recycling and treatment device for waste plastics according to claim 1, characterized in that: A positioning device (27) is movably connected inside the forming box (9). The positioning device (27) includes a positioning plate (26). A second hydraulic rod is provided on one side of the positioning plate (26). A positioning convex is provided at one end of the positioning plate (26).

5. The integrated recycling and treatment device for waste plastics according to claim 4, wherein: A plurality of U-shaped grooves are formed inside the positioning plate (26). A first loop (21) and a second loop (22) are respectively connected to the two inlets of the U-shaped groove. U-shaped grooves are also provided inside the positioning convex. The U-shaped grooves inside the positioning convex are arranged in an up-and-down stacked manner. A first vertical pipe (23) and a second vertical pipe (24) are respectively provided at the two ends of the U-shaped groove inside the positioning convex.

6. The integrated recycling and treatment device for waste plastics according to claim 5, wherein: The first vertical pipe (23) and the second vertical pipe (24) are respectively communicated with the first loop (21) and the second loop. A return air pipe is provided at one end of the first vertical pipe (23). One end of the second transmission pipe (10) extends out of the forming box (9).

7. An integrated recycling and treatment device for waste plastics according to claim 1, characterized in that: A plurality of heating sheets (25) are provided inside the heating box (6). One end of the heating box (6) is communicated with the first transmission pipe (18) and the second transmission pipe (10). An air outlet (14) is provided at the other end of the heating box (6). A plurality of exhaust fans are provided inside the air outlet (14). The air outlet (14) is provided at the lower end of the conveyor belt (5).

8. An integrated recycling and treatment device for waste plastics according to claim 1, characterized in that: The upper end of the conveyor belt (5) is communicated with the second transmission pipe (10).