Plant for recycling and processing marine waste

The marine litter recycling and processing system addresses inefficiencies in existing devices by automating the feeding and shredding process, enhancing operational efficiency and material separation for optimal utilization.

DE202025106861U1Active Publication Date: 2026-02-19JINHUA UNIVERSITY OF VOCATIONAL TECHNOLOGY ZHEJIANG PROVINCE +2
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Patent Information

Application Number
DE202025106861
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2026-02-19
Estimated Expiration
2035-11-30

AI Technical Summary

Technical Problem

Existing marine litter recycling and processing devices require labor-intensive manual loading during shredding, leading to inefficiencies and lack the ability to verify shredded material specifications, hindering optimal utilization.

Method used

A marine litter recycling and processing system featuring a shredding hopper with a telescopic rod, conveyor belt, and a screening mechanism with adjustable sieves, enabling automated feeding, shredding, and screening of marine debris.

Benefits of technology

The system achieves efficient, automated waste processing with improved operational efficiency, precise material separation, and high-quality recycling by reducing manual labor and ensuring optimal utilization of shredded materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

A plant for recycling and processing marine waste, characterized in that the marine waste recycling plant comprises a shredding chamber (1), wherein a support base (2) is provided at the lower end of the shredding chamber (1) and a telescopic rod (3) is attached to the bottom wall of the inner cavity of the shredding chamber (1), the telescopic end of the telescopic rod (3) being fixedly connected to a discharge platform (4); the upper end of the shredding chamber (1) is fixedly connected to a feed mechanism (5); a shredding roller (6) is rotatably connected to the central section of the shredding chamber (1); an outlet (7) is formed on one side of the shredding chamber (1); a connecting base (8) is fixedly connected to one side of the shredding chamber (1); a screening mechanism (9) is screwed onto one side of the connecting base (8);The feeding mechanism (5) comprises an impact plate (51) whose lower end is fixedly connected to the upper end of the comminution chamber (1); a conveyor belt (52) is provided on the inside of the impact plate (51), while a fixed leg (53) is provided at the lower end of the impact plate (51); the upper end of the impact plate (51) is fixedly connected to a feed hopper (54); one side of the impact plate (51) is fixedly connected to a mounting frame (55); one side of the mounting frame (55) is detachably connected to a servo motor (56); the output shaft of the servo motor (56) is connected via a gearbox to a drive roller (57).
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Description

Field of invention

[0001] The present invention relates to the technical field of marine litter waste and in particular to a device for recycling and processing marine litter waste. State of the art

[0002] This is often related to the current state and challenges of the management system for marine pollution from plastic waste and microplastics. Plastic waste in the ocean has become a global environmental problem requiring the combined efforts of international organizations, governments, businesses, civil society groups, and the public. Currently, there is no global governance mechanism specifically addressing marine pollution from plastic waste and microplastics, and establishing such a mechanism quickly is difficult.

[0003] The management of marine plastic waste now encompasses virtually all scenarios, including surface runoff, coastal tourism, shipping, and aquaculture and fisheries. However, the existing literature has paid little attention to governance strategies and measures in the aquaculture and fisheries sectors. While management practices follow a framework for reducing waste sources and controlling processes, supplemented by measures to prevent waste from entering the sea and for marine recovery, aiming for full life-cycle management of plastics, an extension to the production of plastic feedstocks and the recycling of plastic waste remains lacking.

[0004] Currently, conventional marine waste recycling and processing facilities require time-consuming manual labor to load materials during the shredding process. This is labor-intensive and reduces efficiency. Furthermore, it is not possible to verify the specifications of the shredded marine debris, thus preventing optimal utilization. Object of the invention

[0005] The object of the present invention is to provide a marine litter recycling and processing system to solve the problem that the marine litter recycling and processing device proposed in the aforementioned background technology requires long manual waiting times for loading materials during the litter shredding process, which is labor-intensive and reduces work efficiency. Furthermore, it is not possible to verify the specifications of the shredded marine litter, thus failing to achieve optimal utilization. To achieve the aforementioned objectives, the present invention offers the following technical solutions: A marine litter recycling and processing device comprising a shredding hopper. A support seat is located at the lower end of the shredding hopper.A telescopic rod is located on the bottom wall of the inner cavity of the shredding container. The telescopic end of the rod is fixed to a punching platform. The upper end of the shredding container is fixed to a feeding mechanism. A shredding roller is rotatably connected to the middle section of the shredding container. An outlet opening is located on one side of the shredding container. A connecting seat is fixed to this side of the shredding container. A sieve mechanism is screwed onto one side of the connecting seat.

[0006] The feeding mechanism comprises a deflector plate, the lower end of which is fixedly connected to the upper end of the shredding container, a conveyor belt is provided on the inside of the deflector plate, a fixed leg is provided at the lower end of the deflector plate, the upper end of the deflector plate is fixedly connected to the feeding container, one side of the deflector plate is fixedly connected to a mounting frame, one side of the mounting frame is detachably connected to a servo motor, and the output shaft of the servo motor is connected to a transmission roller via a transmission roller.

[0007] In one embodiment, the upper end of the support foot is firmly connected to the lower end of the crushing chamber, and the lower end of the telescopic rod is firmly connected to the bottom wall of the crushing chamber.

[0008] In one embodiment, the inner side wall of the guide wall touches the outer side wall of the conveyor belt, and the lower end of the guide wall is firmly connected to the upper end of the fixed leg.

[0009] In one embodiment, the outer wall of the conveyor belt is provided with non-slip ribs, and the conveyor belt is made of rubber.

[0010] In one embodiment, the sieve mechanism comprises a sieve box, wherein one side of the sieve box is screwed to one side of the connecting seat, a sealing cover is provided on one side of the sieve box, a closing frame is provided on the front of the sieve box, support rods are fixedly connected to the lower end of the sieve box, a partition is fixedly connected to the inner wall of the sieve box, a sieve frame overlaps the upper end of the partition, the inner wall of the sieve frame is fixedly connected to the partition rod, sieves are fixedly connected to both sides of the partition, limit rods are fixedly connected to the lower end of the limit rod, the lower end of the limit rod is fixedly connected to the limit cylinder by a spring, a sealing block is fixedly connected to one side of the sieve frame, and a vibration motor is screwed to the lower end of the partition rod.

[0011] In one embodiment, one side of the sieve box is screwed to one side of the closure lid, and the front end of the sieve box is connected to the rear end of the outlet frame.

[0012] In one embodiment, the opening of the sieves remains constant and gradually increases as the sieves move further away from the outlet opening. The number of sieves corresponds to the number of outlet frames.

[0013] Compared to existing technologies, the present invention offers the following advantages: 1. The feeding mechanism enables the automatic, continuous, and stable feeding of marine debris into the shredding chamber. This significantly reduces manual loading effort and improves work efficiency. The conveyor belt design ensures smooth waste transport. The non-slip ribbing and rubber material on the outer surface improve the adhesion of the debris, preventing slippage or accumulation during transport. This ensures smooth and stable loading and significantly improves the efficiency and quality of waste recycling. Furthermore, the device is simple in design, easy to operate and maintain, and offers high practical value as well as significant promotional potential. It presents broad application prospects and market potential in the field of marine plastic waste management and reuse. 2. The screening mechanism enables the system to automatically screen the shredded marine debris. The screen openings are designed in layers, from small to large. This allows for the effective separation of waste of varying specifications, improving waste recovery and increasing the recycling rate. Simultaneously, the number of screens and feed frames is precisely coordinated, ensuring that the screened waste can be easily unloaded and subsequently processed. List of characters Fig. Figure 1 shows a schematic perspective cross-sectional view of the structure of an embodiment of the invention. Fig. Figure 2 shows a schematic representation of the feeding mechanism of an embodiment of the invention. Fig. Figure 3 shows a schematic representation of the sieve mechanism of an embodiment of the invention. Fig. Figure 4 shows a side view of the perspective structure of an embodiment of the invention. Description of preferred embodiments

[0014] The following are concrete examples of the implementation of the present invention in conjunction with the accompanying figures, which provide a more detailed explanation with regard to the present invention, whereby these examples of implementation are not intended as a limitation of the scope of protection of the present invention. Reference symbol list 1 crushing chamber 2 support legs 3 telescopic poles 4 unloading platform 5 Feeding mechanism 6 crushing roller 7 Discharge opening 8 connection foot 9 Sieve mechanism 51 Guide plate 52 Conveyor belt 53 Firm leg 54 Feed chamber 55 Mounting bracket 56 servo motor 57 Drive roller 91 sieve box 92 sealing caps 93 unloading frames 94 Support rod 95 Dividing plate 96 sieve frames 97 Separating bar 98 sieves 99 Boundary bar 910 Limiting cylinders 911 Sealing block 912 Vibration motor

[0015] With regard to the Fig. 1 and Fig. 4. The present invention offers a technical solution: a device for recycling and processing marine waste, comprising a crushing chamber 1, a support base 2 arranged at the lower end of the crushing chamber 1, a telescopic rod 3 arranged on the bottom wall of the inner cavity of the crushing chamber 1, and a material discharge platform 4, which is fixedly connected to the telescopic end of the telescopic rod 3. A feed mechanism 5 is fixedly connected to the upper end of the crushing chamber 1, a crushing roller 6 is rotatably connected to the center of the crushing chamber 1, and a discharge opening 7 is formed on one side of the crushing chamber 1. A connecting base 8 is fixedly connected to one side of the crushing chamber 1, and a screening mechanism 9 is screwed onto one side of the connecting base 8.

[0016] The feeding mechanism 5 comprises a baffle plate 51, the lower end of which is fixedly connected to the upper end of the crushing chamber 1. A conveyor belt 52 is positioned on the inside of the baffle plate 51, while fixed legs 53 are attached to its lower end. The upper end of the baffle plate 51 is fixedly connected to a feed hopper 54, and one side of the baffle plate 51 is fixedly connected to a mounting frame 55. A servo motor 56 is detachably connected to one side of the mounting frame 55. The output shaft of the servo motor 56 is connected via a gearbox to a drive roller 57. The upper end of the support base 2 is fixedly connected to the lower end of the crushing chamber 1. The lower end of the telescopic rod 3 is fixedly connected to the bottom wall of the inner cavity of the crushing chamber 1.

[0017] Marine waste is fed onto the conveyor belt 52 via a hopper 54. The servo motor 56 drives the drive roller 57, setting the conveyor belt 52 into continuous motion for automated material feeding. The conveyor belt 52 smoothly transports the waste into the shredding chamber 1, reducing manual labor during loading and improving operational efficiency. The non-slip grooves and rubber material on the outer surface of the conveyor belt 52 ensure stability and grip during transport, preventing slippage or material accumulation. The waste is then conveyed via the belt 52 into the shredding chamber 1, where it falls between the two shredding rollers 6. Activating the externally mounted motor sets the shredding rollers 6 in motion, pulverizing the waste material.

[0018] The crushing roller 6 reduces waste materials to pulverize them. Upon entering the crushing chamber 1, see... Fig. 2. To accelerate the transport of marine waste on the conveyor belt, the inner wall of the impact plate 51 is flush with the outer wall of the conveyor belt 52. The lower end of the impact plate 51 is firmly connected to the upper end of the support leg 53. The outer surface of the conveyor belt 52 is provided with non-slip grooves and is made of rubber components.

[0019] By adjusting the telescopic rod 3, the feed table 4 can be raised or lowered to accommodate scrap material of varying heights and ensure that it falls precisely between the crushing rollers 6. Driven by an electric motor, the crushing rollers 6 rotate to shred the scrap material and break it down into finer particles for subsequent screening and recycling. The shredded material is discharged through the outlet 7 and enters the screening mechanism 9 for sorting.

[0020] See Fig.3: To accelerate the screening of marine debris, the screening mechanism 9 comprises a screen box 91, one side of which is bolted to one side of the connecting base 8. A sealing cover 92 is attached to one side of the screen box 91, while a feed frame 93 is positioned at the front end of the screen box 91. Support rods 94 are fixedly connected to the lower edge of the screen box 91. A divider plate 95 is fixedly connected to the inner wall of the screen box 91, with a screen frame 96 overlapping the upper end of the divider plate 95. A divider bar 97 is fixedly connected to the inner wall of the screen frame 96, while a screen mesh 98 is fixedly connected to both sides of the divider plate 95. Limiting rods 99 are fixedly attached around the lower circumference of the sieve frame 96, the lower ends of the limiting rods 99 being firmly connected to limiting cylinders 910 via springs.A sealing block 911 is fixedly connected to one side of the sieve frame 96, and a vibratory motor 912 is screwed to the lower end of the separating bar 97. One side of the sieve box 91 is screwed to one side of the sealing cover 92, while the front end of the sieve box 91 is connected to the rear end of the outlet frame 93. The mesh size of the sieve fabric 98 remains constant and gradually increases as the sieve fabric 98 moves further away from the outlet opening 7. The number of sieve fabrics 98 corresponds to the number of outlet frames 93.

[0021] The screen frame 96 within the screen box 91 is set into vibration by the vibratory motor 912. The increasingly larger mesh size of the screen fabric 98 enables automatic screening of waste materials of varying specifications. During the screening process, the waste materials continuously impact the screen fabric 98. Smaller particles fall through the screen fabric 98 into the discharge container 93 below, while larger particles are screened on the screen fabric 98 until the desired specification is achieved.

[0022] The limit bar 99 below the screen frame 96 and the limit cylinder 910 are connected to each other via springs, thus ensuring a certain degree of damping and stability during the screening process. This prevents damage to the system caused by strong vibrations during screening. Due to the inclined arrangement of the screen frame 96, the crushed raw materials slide downwards along its surface. At the same time, the screen box 91 separates different areas from each other by means of a partition 95. Finally, the materials within the same area are discharged via a single discharge chute 93 to collect and process them according to category.

[0023] The design of the sealing block 911 and the sealing cover 92 ensures the integrity of the seal during the screening process and prevents splashing or escape of waste material. This guarantees a clean and safe working environment. The screened waste material is discharged smoothly via the discharge frame 93, facilitating further processing. Through the integrated application of the feeding mechanism 5 and the screening mechanism 9, the entire device achieves automated feeding, shredding, and screening of marine waste. This significantly improves the efficiency and quality of waste recycling processes. Furthermore, the device is characterized by its simple design, convenient operation, and easy maintenance, thus offering high practicality and great potential for a wide range of applications.It has broad application prospects and market potential in the field of disposal and reuse of marine plastic waste.

[0024] The shredded material falls onto the discharge platform. Parameters such as the speed of the conveyor belt 52, the rotational speed of the crushing rollers 6, and the opening of the screen mesh 98 can then be adjusted according to the actual requirements to meet the processing needs of different types and specifications of marine waste. Additional equipment such as dust collectors and washing units can also be integrated to further improve the efficiency and environmental compatibility of the waste recycling process. Initially, the marine waste is fed onto the conveyor belt 52 via the feed hopper 54. The servo motor 56 drives the drive roller 57, setting the conveyor belt 52 into continuous circulation and enabling automatic feeding of the waste material.The waste is smoothly transported by conveyor belt 52 and conveyed into the shredding chamber 1, reducing the labor intensity of manual feeding and increasing operational efficiency. The non-slip grooves and rubber material on the outer surface of the conveyor belt 52 ensure stability and grip during transport, preventing slippage or material accumulation. The waste is then conveyed via conveyor belt 52 into the shredding chamber 1, where it falls between the two shredding rollers 6. Activating the externally mounted motor sets the shredding rollers 6 in motion, pulverizing the waste material.

[0025] The crushing rollers 6 are capable of shredding waste materials to achieve pulverization. Upon entering the crushing chamber 1, the feed platform 4 can be vertically adjusted via the telescopic rod 3 to accommodate waste of varying heights and ensure precise feeding between the crushing rollers 6. Driven by the motor, the crushing rollers 6 rotate to pulverize the waste material and reduce it to finer particles for subsequent screening and recycling processes. The shredded waste is discharged through the outlet 7 and enters the screening mechanism 9 for sorting. The relative movement of the two crushing rollers concentrates the waste material towards the center of the crushing chamber. It then falls onto the feed platform, where its height can be controlled via the telescopic rod.The feed platform is configured with a gradient from low to high, which facilitates the sloping transfer of waste material into the sieving mechanism while enabling precise volume control.

[0026] The screen frame 96 within the screen box 91 is vibrated by the vibratory motor 912. Due to the progressively larger mesh size of the screen fabric 98, waste materials of varying specifications are automatically screened in successive stages. During the screening process, the waste materials continuously impact the screen fabric 98. Smaller particles fall through the screen fabric 98 into the discharge frame 93 below, while larger particles are screened on the screen fabric 98 until the desired specification is achieved. The limit bar 99 and the limit cylinder 910 below the screen frame 96 are connected by springs, which provide damping and stability during the screening process. This prevents damage to the system from excessive vibrations during the screening process.

[0027] The inclined configuration of the screen frame 96 allows the shredded material to slide down its surface. Simultaneously, the screen box 91, using separating plates 95, separates different areas from one another, with the material from each area ultimately being discharged via the corresponding discharge chute 93 for sorted collection and processing. The design of the sealing block 911 and the sealing cover 92 ensures the integrity of the seal during the screening process and prevents splashing or leakage of waste material, while maintaining a clean and safe working environment. The screened waste material is smoothly discharged via the discharge frame 93 for further processing. Through the integrated application of the feeding mechanism 5 and the screening mechanism 9, the entire device achieves automated feeding, shredding, and screening of marine waste.This significantly improves the efficiency and quality of waste recycling. Furthermore, the device is characterized by its simple design, user-friendly operation, and easy maintenance, thus offering high practicality and broad application potential. It has wide application prospects and market potential in the field of marine plastic waste disposal and reuse. The shredded material falls onto the discharge platform. Subsequently, parameters such as the conveyor belt speed (52), the rotational speed of the shredding rollers (6), and the screen mesh opening (98) can be adjusted according to actual requirements to meet the processing needs of various types and specifications of marine waste. In addition, auxiliary equipment such as dust collectors and washing devices can be added to further improve the effectiveness and environmental friendliness of waste recovery.This completes the operating process of the entire device.

Claims

[1] Marine waste recycling and processing plant, characterized bythat the marine waste recycling plant comprises a shredding chamber (1), wherein a support base (2) is provided at the lower end of the shredding chamber (1) and a telescopic rod (3) is attached to the bottom wall of the inner cavity of the shredding chamber (1), the telescopic end of the telescopic rod (3) being fixedly connected to a discharge platform (4); the upper end of the shredding chamber (1) is fixedly connected to a feed mechanism (5); a shredding roller (6) is rotatably connected to the central section of the shredding chamber (1); an outlet (7) is formed on one side of the shredding chamber (1); a connecting base (8) is fixedly connected to one side of the shredding chamber (1); a screening mechanism (9) is screwed onto one side of the connecting base (8); the feed mechanism (5) comprises an impact plate (51), the lower end of which is fixedly connected to the upper end of the shredding chamber (1);A conveyor belt (52) is provided on the inside of the impact plate (51), while a fixed leg (53) is provided at the lower end of the impact plate (51); the upper end of the impact plate (51) is fixedly connected to a feed hopper (54); one side of the impact plate (51) is fixedly connected to a mounting frame (55); one side of the mounting frame (55) is detachably connected to a servo motor (56); the output shaft of the servo motor (56) is connected to a drive roller (57) via a gearbox. [2] Plant for recycling and processing marine waste according to claim 1, characterized by , that the upper end of the support base (2) is firmly connected to the lower end of the crushing chamber (1) and the lower end of the telescopic rod (3) is firmly connected to the bottom wall of the inner cavity of the crushing chamber (1). [3] Plant for recycling and processing marine waste according to claim 1, characterized by, that the inside of the impact plate (51) is in close contact with the outside of the conveyor belt (52) and the lower end of the impact plate (51) is firmly connected to the upper end of the stationary leg (53). [4] Plant for recycling and processing marine waste according to claim 3, characterized by , that the outer wall of the conveyor belt (52) is provided with non-slip waves and the conveyor belt (52) includes rubber components. [5] Plant for recycling and processing marine waste according to claim 1, characterized by, that the sieve mechanism (9) comprises a sieve box (91), wherein one side of the sieve box (91) is screwed to one side of the connecting base (8) and one side of the sieve box (91) is provided with a sealing cover (92); an outlet frame (93) is positioned at the front end of the sieve box (91), support rods (94) are fixedly attached around the lower end of the sieve box (91), and partition plates (95) are fixedly connected to the inner walls of the sieve box (91); the upper end of the partition (95) supports a sieve frame (96), the inner wall of which is fixedly connected to a partition rod (97); both sides of the partition (95) are fixedly connected to a sieve mesh (98); the lower edge of the sieve frame (96) is fixedly connected to limiting rods (99) around its circumference; the lower ends of the limit rods (99) are firmly connected to limit cylinders (910) via springs; one side of the sieve frame (96) is firmly connected to a sealing block (911);The lower ends of the separating rods (97) are screwed to vibration motors (912). [6] Plant for recycling and processing marine waste according to claim 5, characterized by , that one side of the sieve box (91) is screwed to one side of the sealing cover (92) and the front end of the sieve box (91) is connected to the rear end of the outlet frame (93). [7] Plant for recycling and processing marine waste according to claim 5, characterized by , that the mesh opening of the sieve (98) remains uniform and gradually increases as the sieve (98) moves further away from the outlet (7), and the number of sieves (98) corresponds to the number of feed hoppers (93).