Vehicle-mounted waste plastic recovery device

Abstract

The invention relates to the technical field of vehicle-mounted waste plastic recycling, and discloses a vehicle-mounted waste plastic recycling device which comprises a vehicle-mounted container, a color sorter is arranged in the vehicle-mounted container, a sorting temporary storage box is arranged on the rear portion of the color sorter, and a PET material discharging port and other material discharging ports are formed in the temporary storage box. The two discharging ports are in butt joint with the corresponding shredding assemblies respectively, the bottoms of the shredding assemblies are in butt joint with the spiral conveyors, the tail ends of the spiral conveyors are in butt joint with the stock bins, the stock bins comprise the PET stock bin and the other stock bin which are arranged side by side, and the stock bins form a slope face from an inlet to the rear wall. According to the invention, through advanced visual identification and automation technologies, efficient integrated processing of recovery, classification, crushing, compression and settlement is realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted waste plastic recycling technology, and more particularly to a vehicle-mounted waste plastic recycling device. Background Technology

[0002] With the increasing consumption of plastic bottles, the recycling of plastic waste has become particularly important. However, existing recycling systems typically rely on manual sorting and processing, which is inefficient and prone to errors. Traditional vehicle-mounted recycling systems mostly lack efficient automated sorting, crushing, and compression technologies, resulting in low recycling efficiency and insufficient resource utilization. Furthermore, in the current plastic recycling process, crushed plastic is not dried before transportation, making it highly susceptible to mold growth after recycling due to its damp state. Summary of the Invention

[0003] To overcome the above shortcomings, this invention provides a vehicle-mounted waste plastic recycling device that achieves efficient integrated processing of recycling, sorting, crushing, compression and settlement through advanced visual recognition and automation technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle-mounted waste plastic recycling device, comprising a vehicle-mounted container, characterized in that: a color sorter is installed inside the vehicle-mounted container, a temporary storage box for sorting is installed at the rear of the color sorter, a PET material outlet and other material outlets are provided in the temporary storage box, the two outlets are respectively connected to corresponding shredding components, the bottom of the shredding components is connected to a screw conveyor, the end of the screw conveyor is connected to a hopper, the hopper includes a PET hopper and other material hoppers arranged in parallel, and the hopper forms a sloping surface from the inlet to the rear wall.

[0005] Preferably, the sorting machine is a double-layer zone color sorter, which connects to an upper conveyor belt and a lower conveyor belt. The upper conveyor belt includes two parallel zones, A and B. The entrance of zone A is connected to a spiral elevator, and the lower conveyor belt is connected to the entrance of zone B of the upper conveyor belt via a rotary vertical elevator.

[0006] Preferably, the lower conveyor belt includes zone A and zone B, and the other material bins include blue and white material bins and mixed-color material bins.

[0007] Preferably, the color sorter includes an AI vision sorting system that automatically sorts PET bottles and other bottles. The hopper is equipped with a pressure detection device, which is connected to the main control system, and the main control system is connected to an alarm device.

[0008] Preferably, the main control system has a built-in real-time settlement module. After the recycled materials are sorted and processed, the system automatically records the quantity and type of the recycled materials and calculates the settlement amount based on the type and quantity of the materials. The recycler can check the settlement results in real time and choose to settle the payment by cash, mobile payment or points redemption.

[0009] Preferably, the bottom of the sorting temporary storage box is connected to the shredding assembly via a PET feeding pipe and other feeding pipes. The bottom of the shredding assembly is equipped with a drying assembly. The drying assembly includes a rectangular box with a groove on its outer side wall. A fan is fixedly connected inside the groove. A sleeve is fixedly connected to the inner side wall of the rectangular box via a connecting pipe. A screw conveyor is installed in the sleeve. An air outlet is provided on the side wall of the sleeve. An inlet is provided at the front end of the sleeve, and the inlet is connected to the discharge port of the shredding assembly.

[0010] Preferably, the shredding assembly includes a motor, the output shaft of which is fixedly connected to a PET shredder shaft, a shredding box is fixedly connected inside the vehicle-mounted container, other feed hoppers and an ET feed hopper are fixedly connected to the top of the shredding box, other shredder shafts are rotatably connected inside the shredding box, a second gear is fixedly connected to the outer wall of the other shredder shafts, and a first gear is fixedly connected to the outer wall of the PET shredder shaft.

[0011] Preferably, the bottom of the motor is fixedly connected to the outer wall of the shredding box by a support plate.

[0012] Preferably, the outer walls of the first gear and the second gear are connected by a chain drive.

[0013] Preferably, the outer walls of the first gear and the second gear are attached to the outer wall of the shredding box.

[0014] The present invention has the following beneficial effects: 1. The miniaturized recycling unit is integrated into a vehicle, enabling flexible movement and greatly improving recycling efficiency. An AI vision sorting system accurately identifies plastic bottles of different materials and automatically classifies them for processing.

[0015] 2. Different types of shredding components can cut plastic mixtures into fragments suitable for compression; the hopper ramp design ensures efficient material compression and prevents material accumulation.

[0016] 3. The drying component can be used to dry shredded PET materials and other plastics in a targeted manner. It allows the airflow carrying moisture to be discharged through the air outlet with a filter, which can prevent moisture from flowing back and contaminating the materials, and also avoid the filter from clogging and affecting the ventilation effect.

[0017] 4. The instant settlement system provides recyclers with a convenient payment method, incentivizing more people to participate in recycling. The entire system is highly automated, reducing human intervention and operational errors, and ensuring the efficiency and accuracy of the recycling process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0019] Figure 2 for Figure 1 Top view.

[0020] Figure 3 This is a cross-sectional structural diagram of Embodiment 2 of the present invention; Figure 4 This is a schematic diagram showing the disassembled structure of the sorting temporary storage box and the shredding component of the present invention; Figure 5 This is a schematic diagram of the shredding component of the present invention; Figure 6 This is a schematic diagram of the structure of the air-drying component of the present invention.

[0021] Figure 7 This is a schematic diagram of the structure of Embodiment 3 of the present invention.

[0022] Figure 8 for Figure 7 The main body top view.

[0023] Figure 9 This is a three-dimensional structural diagram of Example 3.

[0024] Figure 10 This is a structural diagram from another angle.

[0025] Figure 11 This is a schematic diagram of the processing in Embodiment 3 of the present invention.

[0026] Legend: 1. Vehicle-mounted container; 2. Color sorter; 3. PET hopper; 4. Other hoppers; 5. Shredder assembly; 51. Motor; 52. Shredder box; 53. Other feed hoppers; 54. PET feed hopper; 55. PET crusher shaft; 56. Other crusher shafts; 57. Chain; 58. Gear No. 1; 59. Gear No. 2; 6. PET feed pipe; 7. Other feed pipes; 8. Temporary storage box for sorting; 9. Pneumatic fan. Dry components; 91. Rectangular box; 92. Groove; 93. Fan; 94. Air outlet; 95. Connecting pipe; 10. Sleeve; 11. PET screw conveyor; 12. Other material screw conveyor; 13. Inclined surface; 14. Discharge port; 15. Shredder assembly; 16. Screw elevator; 17. Rotary vertical elevator; 18. Upper conveyor belt; 19. Lower conveyor belt; 20. Zone A; 21. Zone B; 22. Mixed color discharge port; 23. Material sorting area. Detailed Implementation

[0027] 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.

[0028] Example 1: As Figure 1 and Figure 2 As shown: A vehicle-mounted waste plastic recycling device includes a vehicle-mounted container 1. A color sorter 2 is installed inside the vehicle-mounted container 1. A temporary storage box 8 is installed at the rear of the color sorter 2. The temporary storage box is provided with a PET material outlet and other material outlets. The two outlets 14 are connected to corresponding shredding components 15. The bottom of the shredding components is connected to a screw conveyor. The end of the screw conveyor is connected to a hopper. The hopper includes a PET hopper and other material hoppers arranged side by side. The hopper forms a sloping surface 13 from the inlet to the rear wall.

[0029] Specifically, the color sorter includes an AI vision sorting system that automatically sorts PET bottles and other bottles. The hopper is equipped with a pressure detection device, which is connected to the main control system, and the main control system is connected to an alarm device.

[0030] In this embodiment, the first step of the recycling process is to automatically classify the collected plastic bottles using AI visual sorting technology. High-definition cameras and image recognition algorithms quickly identify the material of the plastic bottles and separate them into two categories: PET bottles and bottles of other materials. PET bottles and bottles of other materials are then fed into two separate crushers via conveyor belts for processing. The crushers use high-speed rotating blades to cut the plastic bottles into smaller fragments, ensuring that the material is easier to handle in subsequent processing.

[0031] After being crushed, the plastic fragments fall into two auger conveyors. These conveyors (screw conveyors) push the fragments to hoppers via a rotating screw. Each hopper is designed with a ramp structure. Material continuously enters the hopper via the auger conveyor, and as the material accumulates, the fragments are compressed and piled upwards within the hopper. The ramp design allows the material to smoothly accumulate upwards through gravity and the compression of the screw. Without the ramp design, the fragments would accumulate at the bottom of the hopper, making it difficult to push them upwards and resulting in poor material flowability. The presence of the ramp ensures that the fragments are efficiently compressed upwards and maintain good compression.

[0032] As material accumulates in the hopper, the fragments are gradually compressed by the ramp, reducing the material's volume. The auger conveyor continuously pushes newly crushed material into the hopper until it reaches its maximum capacity. The intensity of the compression process arises naturally from the accumulation of material, requiring minimal manual adjustment. The system is equipped with a pressure detection device; as material increases and is gradually compressed, the system monitors the pressure in real time using sensors. When the material reaches the set maximum pressure value, the system issues an alarm signal, indicating that the compression zone has reached its maximum capacity, preventing over-compression from damaging the equipment or material.

[0033] AI-powered visual sorting systems play a crucial role in the classification and processing of plastic bottles. The system automatically identifies the material of each recycled plastic bottle in real time and then sorts them to the appropriate crusher based on the material. The advantages of visual sorting technology lie in its efficiency and accuracy, significantly improving the precision of recycling and avoiding errors caused by manual sorting.

[0034] In this invention, the entire recycling system is controlled by an automated control system. The control system monitors data from each stage in real time and automatically adjusts parameters such as the conveying speed of the auger conveyor, the operating status of the crusher, and the compression force of the hopper. The system uses an intelligent feedback mechanism to ensure that the operating status of each stage is always optimal, avoiding manual intervention and misoperation common in traditional recycling methods.

[0035] After each recyclable material is sorted and processed, the system automatically records the quantity and type of the recyclable materials and calculates the settlement amount based on the material type and quantity. Recyclers can check the settlement results in real time through the onboard device and choose to pay in cash, via mobile payment (such as Alipay, WeChat Pay, etc.), or by redeeming points. Settlement information can be displayed instantly on an electronic screen or mobile terminal, ensuring the convenience and transparency of the recycling process.

[0036] Example 2, as Figures 3-6 As shown, the bottom of the sorting temporary storage box 8 is connected to a PET feeding pipe 6 and other feeding pipes 7. The feeding pipes guide the shredding assembly 5, and the bottom of the shredding assembly 5 is provided with a drying assembly 9.

[0037] The air-drying assembly 9 includes a rectangular box 91. The outer wall of the rectangular box 91 has a groove 92 that can precisely accommodate a fan 93. The fan 93 is fixedly connected inside the groove 92. When the fan 93 is powered on, it can generate airflow for air drying. The front end of the rectangular box 91 is fixedly connected to a sleeve 10 through a connecting pipe 95. The connecting pipe 95 can transport the airflow generated by the fan 93 into the sleeve 10. A set of sleeves 10 is equipped with a screw conveyor 12 for other materials. The outer wall of the sleeve is provided with an air outlet 94 with a filter screen with dense filter holes. The air outlet 94 can discharge the water vapor generated during air drying in the sleeve 10 and prevent plastic fragments from leaking out.

[0038] Another set of sleeves 10 is equipped with a PET screw conveyor 11. The inlet of the sleeve 10 is connected to the outlet of the shredder 52, ensuring that the PET plastic bottle fragments shredded by the shredder 52 can smoothly enter the sleeve 10. The outlet of the sleeve 10 is connected to the inlet of the PET hopper 3. Dry component 9 starts: The fan 93 fixed in the groove 92 on the rear wall of the rectangular box 91 operates, generating airflow that is sent into the sleeve 10 through the connecting pipe 95. The airflow dries the shredded PET material during the conveying process, and then carries moisture through the air outlet 94 with a dense filter on the outer wall of the sleeve 10 and is discharged. The dried PET material is then conveyed to the PET hopper 3 at the rear.

[0039] Reference Figure 5The shredding assembly 5 includes a motor 51, the output shaft of which is fixedly connected to a PET shredder shaft 55. A shredding box 52, providing a closed space for plastic bottle crushing and fixed inside the vehicle-mounted container 1, is fixedly connected to the inside of the container. Other feed hoppers 53 and PET feed hoppers 54 are fixedly connected to the top of the shredding box 52. Other shredder shafts 56 are rotatably connected inside the shredding box 52, allowing them to rotate within the shredding box 52 and crush non-PET plastic bottles. A second [unclear - possibly a device or component] is fixedly connected to the outer wall of the other shredder shafts 56. Gear 59 and PET crusher shaft 55 are fixedly connected to the outer wall of a first gear 58. The bottom of motor 51 is fixedly connected to the outer wall of shredding box 52 via a support plate. The outer walls of first gear 58 and second gear 59 are connected by a chain 57, which enables power transmission between first gear 58 and second gear 59. The rear end of other material screw conveyor 12 is fixedly connected to the bottom of shredding box 52. The outer walls of first gear 58 and second gear 59 are attached to the outer wall of shredding box 52. Material enters shredding box 52 through PET feed hopper 54 and other materials through other feed hoppers 53. After the motor 51 starts, its output shaft drives the PET crusher shaft 55 to rotate. The first gear 58, which is fixed on the outer wall of the PET crusher shaft 55, drives the second gear 59 to rotate synchronously through the chain 57, thereby driving the other crusher shafts 56 to work together with the PET crusher shaft 55 to shred the material in the box. After crushing, the PET material falls into the bottom of the shredding box 52 and enters the sleeve 10 connected to it, and is conveyed forward by the PET screw conveyor 11.

[0040] Working principle: The material enters the shredding box 52 through the PET feed hopper 54 and other materials through other feed hoppers 53. After the motor 51 starts, its output shaft drives the PET crushing blade shaft 55 to rotate. The first gear 58, which is fixed on the outer wall of the PET crushing blade shaft 55, drives the second gear 59 to rotate synchronously through the chain 57, thereby driving the other crushing blade shafts 56 to work together with the PET crushing blade shaft 55 to shred the material in the box. After crushing, the PET material falls to the bottom of the shredding box 52 and enters the sleeve 10 connected to it, and is conveyed forward by the PET screw conveyor 11.

[0041] Simultaneously, the air-drying assembly 9 is activated: the fan 93 fixed in the groove 92 on the rear wall of the rectangular box 91 operates, generating airflow that is sent into the sleeve 10 through the connecting pipe 95. During the conveying process, the airflow dries the shredded PET material, and then carries moisture through the air outlet 94 with a dense filter screen on the outer wall of the sleeve 10. The dried PET material is then conveyed to the PET hopper 3 at the front end, and the screw conveyor 12 for other materials works in the same way as the sleeve 10.

[0042] Example 3: As Figures 7-10 As shown, the sorting machine in this embodiment is a double-layer zoned color sorter, which connects to an upper conveyor belt and a lower conveyor belt. The upper conveyor belt includes two parallel zones, A and B. The entrance of zone A connects to a spiral elevator, and the lower conveyor belt connects to the entrance of zone B of the upper conveyor belt via a rotary vertical elevator. A color sorter 2 and a material distribution zone 23 are sequentially arranged at the rear end of the upper conveyor belt. The lower conveyor belt includes zones A and B, and the hoppers include PET hoppers and other material hoppers. These other material hoppers can be further divided into blue-white material hoppers and mixed-color material hoppers.

[0043] like Figure 11 As shown, the operation process of this embodiment is as follows: the mixed materials are conveyed through the upper conveyor belt A and enter the optical sorter for PET material identification. The optical sorter automatically identifies the PET material and separates it. The sorted PET material enters the shredder A for shredding. The shredded PET material is then sent to the storage bin A via a screw conveyor. Other non-PET materials, after optical sorting, enter the lower conveyor belt B through the return port and are then sent to the upper conveyor belt B by a rotary vertical elevator for secondary sorting.

[0044] In section B of the upper conveyor belt, the sorting machine further separates the material into blue-white and mixed-color materials. The blue-white materials are screened out and enter section B of the shredder for shredding. The shredded blue-white materials are then transported to silo B for storage via a screw conveyor.

[0045] Mixed materials are returned to the lower conveyor belt (A section) via a return port and eventually enter silo C for storage. To prevent silo inlet blockage, the silo design incorporates a ramp structure, and each silo also features weighing and real-time settlement functions.

[0046] Example 4: The difference from Example 3 is that the system still has a two-compartment sorting structure. The upper conveyor belt is still divided into Zone A and Zone B, but the lower conveyor belt is no longer divided. The mixed materials first undergo initial sorting in Zone A of the upper conveyor belt. The PET material is screened out by the optical sorter and enters Zone A of the shredder for shredding. The shredded PET material is then sent to silo A for storage via a screw conveyor.

[0047] Other materials enter the lower conveyor belt through the return port and are then transported to the upper conveyor belt, zone B, via a rotary vertical elevator for secondary sorting. The sorter in zone B separates the materials into blue-white and mixed-color materials. The blue-white materials enter the shredder, zone B, for further processing. The shredded blue-white materials are then conveyed into hopper B via a screw conveyor, while the mixed-color materials are directly blown out of the vehicle from the mixed-color outlet 22 by a pneumatic system.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle-mounted waste plastic recycling device, comprising a vehicle-mounted container (1), characterized in that: The inside of the vehicle-mounted container (1) is provided with a color sorter (2), the rear of the color sorter (2) is provided with a sorting temporary storage box (8), the temporary storage box is provided with a PET material discharge port and other material discharge ports, the two discharge ports are respectively connected with corresponding shredding assemblies, the bottom of the shredding assembly is connected with a screw conveyor, the end of the screw conveyor is connected with a material bin, the material bin includes a PET material bin and an other material bin arranged side by side, and the material bin forms a slope surface from the inlet to the rear wall.

2. The vehicle-mounted waste plastic recycling device according to claim 1, characterized in that The sorting machine is a double-layer partition color sorter, the double-layer partition color sorter is connected with an upper conveying belt and a lower conveying belt, the upper conveying belt includes A and B zones arranged side by side, the inlet of the A zone is connected with a screw elevator, and the lower conveying belt is connected with the B zone inlet of the upper conveying belt through a rotary vertical elevator.

3. The vehicle-mounted waste plastic recycling device according to claim 2, characterized in that The lower conveying belt includes A and B zones, and the other material bin includes a blue-white material bin and a miscellaneous color material bin.

4. The vehicle-mounted waste plastic recycling device according to any one of claims 1-3, characterized in that The color sorter includes an AI visual sorting system, which automatically classifies PET materials and other materials, and the material bin is provided with a pressure detection device connected with a main control system, and the main control system is connected with an alarm device.

5. An on-board waste plastic recycling device as claimed in claim 4, wherein: The main control system is built-in with an instant settlement module, after the recycled materials are classified and processed, the system automatically records the quantity and type of the recycled materials, calculates the settlement amount according to the type and quantity of the materials, and the recycler can query the settlement result in real time and select cash payment, mobile payment or points exchange to settle.

6. The on-board waste plastic recycling device of claim 1, wherein The bottom of the sorting temporary storage box (8) is connected with the shredding assembly (5) through a PET discharge pipe (6) and an other discharge pipe (7), and the bottom of the shredding assembly (5) is provided with a air-drying assembly (9). The air-drying assembly (9) includes a rectangular box (91), a groove (92) is formed in the outer wall of the rectangular box (91), a fan (93) is fixedly connected in the groove (92), a sleeve pipe (10) is fixedly connected to the inner wall of the rectangular box (91) through a connecting pipe (95), a screw conveyor is arranged in the sleeve pipe, an air outlet (94) is arranged on the side wall of the sleeve pipe, and an inlet is arranged at the front end of the sleeve pipe and connected with the discharge port of the shredding assembly (5).

7. The vehicle-mounted waste plastic recycling device according to claim 6, characterized in that: The shredding assembly (5) includes a motor (51), the output shaft of the motor (51) is fixedly connected with a PET crushing knife rotating shaft (55), the inside of the vehicle-mounted container (1) is fixedly connected with a shredding box (52), the top of the shredding box (52) is fixedly connected with an other feeding hopper (53) and a PET feeding hopper (54), the inside of the shredding box (52) is rotatably connected with an other crushing knife rotating shaft (56), the outer wall of the other crushing knife rotating shaft (56) is fixedly connected with a second gear (59), and the outer wall of the PET crushing knife rotating shaft (55) is fixedly connected with a first gear (58).

8. The vehicle-mounted waste plastic recycling device according to claim 7, characterized in that: The bottom of the motor (51) is fixedly connected to the outer wall of the shredding box (52) through a supporting plate.

9. The vehicle-mounted waste plastic recycling device according to claim 7, characterized in that: The outer walls of the first gear (58) and the second gear (59) are drivingly connected through a chain (57).

10. The vehicle-mounted waste plastic recycling device according to claim 7, characterized in that: The outer wall of the first gear (58) and the second gear (59) is attached to the outer wall of the shredding box (52).

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