A device for recycling garbage in aquaculture based on the concept of wasteless fishery

By installing an upper feed pipe, a double-layer open hopper, an annular filter screen, and an open box unit on the crushing device, mud and water separation of fishery waste is achieved, solving the problem of mud and water from fishery waste polluting the crushed products and improving crushing efficiency and energy efficiency.

CN115922976BActive Publication Date: 2026-02-24ZHEJIANG INST OF FRESH WATER FISHERIES
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Patent Information

Application Number
CN202310115395.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-15
Publication Date
2026-02-24
Estimated Expiration
2043-02-15

AI Technical Summary

Technical Problem

Fishery plastic waste carries a lot of mud and water; adding it directly to a crushing device will contaminate the crushed plastic products and increase unnecessary workload.

Method used

The crushing chamber is equipped with an upper feed pipe, a double-layer open hopper unit, a ring filter unit, and an open box unit. These structures enable mud-water separation, ensuring that aquaculture waste is separated and the mud and water are removed before it enters the crushing chamber.

Benefits of technology

The crushed plastic products are relatively clean, the crushing chamber is not prone to rust, and the rotary crushing action reduces the cutting of water and silt, saving energy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of crushing devices, and particularly relates to a water product breeding garbage recycling device based on the concept of waste-free fishery. The water product breeding garbage recycling device based on the concept of waste-free fishery can separate and remove mud and water from water product breeding garbage before the garbage enters a crushing bin, so that the crushing plastic product and the crushing bin are relatively cleaner.
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Description

Technical Field

[0001] This invention belongs to the field of crushing device technology, and in particular relates to a device for recycling and reusing aquaculture waste based on the concept of zero-waste fisheries. Background Technology

[0002] The concept of zero-waste fisheries mainly includes two points: 1. Using reusable fishing gear in the aquaculture process to reduce waste generation at the source; 2. Collecting and processing waste such as discarded fishing nets, pesticide packaging, and aquatic feed bags for reuse. Ultimately, the zero-waste fisheries model can further improve the quality of aquaculture and enable sustainable environmental development.

[0003] On the other hand, fishing nets, plastic bags, and plastic bottles, after initial crushing, can be further processed into melt-down and reprocessing materials. Therefore, the aforementioned recycling device refers to a crushing device for plastic products.

[0004] Chinese utility model patent with patent publication number CN204658748U and publication date of September 23, 2015, discloses a waste plastic recycling machine. The machine includes a primary support column located on the left side of the upper surface of the base, which is welded to the base. A secondary support column is located on the right side of the upper surface of the base. One end of a roller is connected to a primary motor via a primary rotating shaft, and the other end is connected to a secondary motor via a secondary rotating shaft. A central shaft is located inside the roller, and a pulverizing device is located around the central shaft. A rotating shaft is located at the left end of the roller and is fixed by a primary connecting rod. A hopper is located at the center of the upper surface of the roller, and an outlet is located at the center of the lower surface of the roller. A support platform is located at the lower right of the roller.

[0005] The waste plastic recycling machinery in this utility model patent has the following general structural principle: waste plastic is added at the hopper, and then falls through the rotating crushing device and the discharge port in sequence, finally landing on the conveyor belt, achieving a basically effective and continuous waste plastic crushing effect, providing a suitable foundation for subsequent recycling and reuse methods.

[0006] However, the biggest drawback of this waste plastic recycling machine in actual use, which is the technical problem that this invention aims to solve, is:

[0007] Fishery plastic waste differs from ordinary household plastic waste. It typically carries a large amount of water and soil. Therefore, fishery plastic waste is often mixed with a lot of mud and water. If both are directly added to the rollers, it will contaminate the final crushed plastic product and unnecessarily increase the workload of the crushing device.

[0008] Therefore, in summary, there is an urgent need for a new type of crushing device with mud-water separation function to be used in the aquaculture waste recycling and reuse production line under the zero-waste fishery model. Summary of the Invention

[0009] This invention provides a waste recycling and reuse device for aquaculture waste based on the concept of zero-waste fisheries. By setting up an upper feed pipe, a double-layer open hopper unit, an annular filter unit, and an open box unit on the crushing chamber, the aquaculture waste is separated and the mud and water are removed before it enters the crushing chamber, ensuring that the crushed plastic products and the crushing chamber are relatively cleaner.

[0010] The technical solution adopted by the present invention to solve the above problems is: an aquaculture waste recycling and reuse device based on the concept of zero-waste fisheries, the structure of which includes a crushing chamber and an upper feed pipe set on the crushing chamber, a double-layer open hopper unit set on the upper feed pipe for discharging mud and water downwards, an annular filter screen unit set on the double-layer open hopper unit for catching and releasing aquaculture waste, and an open box unit set on the upper feed pipe for overflowing clean water downwards.

[0011] A further preferred technical solution is that the double-layer open hopper unit includes an annular hopper disposed on the upper end face of the upper feed pipe and being larger at the top and smaller at the bottom, a central circular pipe disposed on the inner ring face of the annular hopper and being smaller at the top and larger at the bottom, and a mud and water outlet disposed on the annular hopper and located outside the central circular pipe.

[0012] A further preferred technical solution is that the mud and water outlets are fan-shaped and number 5-10.

[0013] A further preferred technical solution is that the annular filter unit includes a low-position fixed ring disposed on the outer annular surface of the central circular tube, a high-position movable ring disposed on the inner annular surface of the annular hopper, and an annular filter screen disposed on the low-position fixed ring and the high-position movable ring and covering the mud and water outlet.

[0014] A further preferred technical solution is that the annular filter unit further includes a connecting rope disposed on the high-position movable ring and hanging down along the upper edge of the annular hopper, and a counterweight ring disposed on the connecting rope for directly lifting the annular filter and indirectly lowering aquaculture waste.

[0015] A further preferred technical solution is that the number of connecting ropes is 3-5.

[0016] A further preferred technical solution is that the open box unit includes a rectangular box body located below the mud and water outlet, an installation hole located on the rectangular box body for inserting the upper feed pipe, two drainage holes located at both ends of the bottom plate of the rectangular box body, and a sludge baffle located between the drainage holes and the upper feed pipe.

[0017] A further preferred technical solution is that: the crushing chamber is also provided with a rotating shaft, and the two exposed sections of the rotating shaft are each provided with a bearing located below the drain hole.

[0018] A further preferred technical solution is that the open box unit further includes a U-shaped locking plate disposed on the drainage hole and having the silt baffle on its upper end face, and an inclined guide plate disposed on the lower end face of the U-shaped locking plate and used for lateral protection of the clean water.

[0019] A further preferred technical solution is that the lower end of the inclined guide plate presses against the bearing outward. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram showing the position of the bearing in this invention.

[0022] Figure 3 This is a schematic diagram illustrating the usage of the annular filter unit in this invention.

[0023] Figure 4 This is a schematic diagram of the structure of the annular filter unit in this invention.

[0024] Figure 5 This is a schematic diagram of the structure of the double-layer open hopper unit in this invention.

[0025] Figure 6 This is a schematic diagram illustrating the usage of the inclined guide plate in this invention.

[0026] Figure 7 This is a schematic diagram showing the position of the inclined guide plate in this invention.

[0027] Figure 8 This is a schematic diagram of the structure of the component consisting of the sludge baffle, the U-shaped locking plate, and the inclined guide plate in this invention.

[0028] The meanings of the markings in the diagram are as follows:

[0029] a) Muddy water, aquaculture waste; b) Clean water body; c) Crushed plastic products; d) Settled silt; e)

[0030] Crushing chamber 10, upper feed pipe 11, coupling 12, bearing seat 13;

[0031] Double-layer open hopper unit 1, annular filter screen unit 2, open box unit 3, rotating shaft 4, bearing 5;

[0032] Circular hopper 101, centrally located circular pipe 102, mud and water outlet 103, low-position fixed circular ring 201, high-position movable circular ring 202, circular filter screen 203, connecting rope 204, counterweight circular ring 205, rectangular box 301, mounting hole 302, drainage hole 303, sludge baffle 304, U-shaped clamping plate 305, inclined guide plate 306. Detailed Implementation

[0033] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0034] As attached Figure 1-8 As shown, an aquaculture waste recycling and reuse device based on the concept of zero-waste fisheries includes a crushing chamber 10, an upper feed pipe 11 installed on the crushing chamber 10, a double-layer open hopper unit 1 installed on the upper feed pipe 11 for discharging muddy water a downwards, an annular filter screen unit 2 installed on the double-layer open hopper unit 1 for catching and releasing aquaculture waste b, and an open box unit 3 installed on the upper feed pipe 11 for overflowing clean water c downwards.

[0035] In this embodiment, aquaculture waste b, such as old fishing nets and plastic bags, passes sequentially through the double-layer open hopper unit 1, the upper feed pipe 11, and the crushing chamber 10. Finally, it is shredded by rotating blades in the crushing chamber 10 and discharged from the outlet to obtain crushed plastic product d. The crushed plastic product d can then be processed by batching, mixing, and other operations to obtain recyclable plastic particles. These plastic particles can be reused to produce fishing nets and various feed bags and pesticide bags for aquaculture.

[0036] The outer layer of the double-layer open hopper unit 1 is used to temporarily store aquaculture waste b, which is the time for the aquaculture waste b and mud and water a to be separated. The inner layer is connected to the upper feed pipe 11 to ensure that the relatively clean aquaculture waste b is smoothly lowered and can be cut and crushed.

[0037] Therefore, the annular filter unit 2 also has two usage states:

[0038] First, it is laid on the inner bottom surface of the outer layer of the double-layer open hopper unit 1, serving as the separation point for aquaculture waste b and muddy water a, with the former being caught and the latter flowing downwards;

[0039] Second, the annular filter unit 2 is pulled upwards, pushing the aquaculture waste b, which has already been separated from mud and water a, towards the inner layer of the double-layer open hopper unit 1 until it is fed into the upper feed pipe 11. Of course, at this time it is neither necessary nor possible to feed in 100% of the aquaculture waste b all at once; a small amount can be left over for the next batch of aquaculture waste b.

[0040] Then there is the open box unit 3, which is fixedly connected to the upper feed pipe 11 to ensure that the settled sludge e can be intercepted and centrally processed each time, while the relatively clean water c can be discharged downwards. Otherwise, the open box unit 3 may fall due to its weight.

[0041] Ultimately, the crushed plastic product d is relatively clean, the crushing chamber 10 is not prone to rapid rusting, and the rotary crushing action does not perform a large number of meaningless "water cutting and sludge cutting" operations, thus saving energy.

[0042] The double-layer open hopper unit 1 includes an annular hopper 101 disposed on the upper end face of the upper feed pipe 11, which is larger at the top and smaller at the bottom; a central circular pipe 102 disposed on the inner annular surface of the annular hopper 101, which is smaller at the top and larger at the bottom; and a mud and water outlet 103 disposed on the annular hopper 101 and located outside the central circular pipe 102.

[0043] In this embodiment, the annular filter unit 2 is lifted upwards, so that most of the height of the aquaculture waste b is higher than the upper opening of the central circular pipe 102, and then the aquaculture waste b can be fed downwards, at which point the mud and water a on it has been basically removed.

[0044] In addition, after the aquaculture waste b is put into the annular hopper 101, it cannot be fed and crushed immediately. It needs to stand for a period of time, and can even be rinsed with clean water. Moreover, it cannot be placed in the central tube 102 at the beginning, but needs to be placed between the annular hopper 101 and the central tube 102.

[0045] The mud and water outlet 103 is fan-shaped and there are 5-10 outlets.

[0046] In this embodiment, the size and number of the mud and water outlets 103 are as large and as numerous as possible without significantly reducing the structural strength of the annular hopper 101.

[0047] The annular filter unit 2 includes a low-position fixed ring 201 disposed on the outer annular surface of the central circular tube 102, a high-position movable ring 202 disposed on the inner annular surface of the annular hopper 101, and an annular filter 203 disposed on the low-position fixed ring 201 and the high-position movable ring 202 and covering the mud and water outlet 103.

[0048] In this embodiment, the low-position fixed ring 201 is welded and fixed, while the high-position movable ring 202 is temporarily fixed by snap-fit ​​or other movable connection methods. After the aquaculture waste b has been left to stand for a sufficient period of time, the high-position movable ring 202 is pulled upward to turn the aquaculture waste b over and push it into the central circular tube 102, thus completing the feeding operation.

[0049] In addition, the annular filter 203 is a common nylon mesh with a mesh size of 1-2cm, which ensures that mud and water a can fall down quickly and that aquaculture waste b is not easy to fall down.

[0050] The annular filter unit 2 also includes a connecting rope 204 disposed on the high-position movable ring 202 and hanging vertically along the upper edge of the annular hopper 101, and a counterweight ring 205 disposed on the connecting rope 204 and used to directly lift the annular filter 203 and indirectly lower the aquaculture waste b.

[0051] In this embodiment, the counterweight ring 205 serves two purposes:

[0052] First, the two ends of the connecting rope 204 are the high-position movable ring 202 and the counterweight ring 205, respectively. Both of these are relatively heavy, which ensures the balance on both sides and makes it difficult to pull the annular filter screen 203 when the aquaculture waste b is initially dumped.

[0053] Secondly, the counterweight ring 205 serves as the direct force-applying part for lifting the annular filter screen 203 upward.

[0054] When the aquaculture waste b is left to settle and discharge muddy water a, the connecting rope 204 spans the upper edge of the annular hopper 101.

[0055] The number of connecting ropes 204 is 3-5.

[0056] In this embodiment, 3-5 connecting ropes 204 correspond to 3-5 counterweight rings 205. This ensures that the force pulling the high-position movable ring 202 is sufficient, and also makes the annular filter screen 203 balanced when it is lifted upward. That is, the high-position movable ring 202 is always approximately horizontal when it is stationary or being lifted.

[0057] The open box unit 3 includes a rectangular box 301 located below the mud and water outlet 103, an installation hole 302 located on the rectangular box 301 for inserting the upper feed pipe 11, two drainage holes 303 located at both ends of the bottom plate of the rectangular box 301, and a sludge baffle 304 located between the drainage holes 303 and the upper feed pipe 11.

[0058] In this embodiment, the mounting hole 302 is fully fixed to the outer ring surface of the upper feed pipe 11, while ensuring sufficient sealing and waterproof performance. Furthermore, both sides and the bottom edge of the sludge baffle 304 are also fully sealed and waterproof to the rectangular box 301, ensuring that muddy water a and settled sludge e cannot pass through the sludge baffle 304, while clean water c can only overflow at the upper edge of the sludge baffle 304.

[0059] Of course, the sediment sludge e that has accumulated on the inner side of the sludge baffle 304 over a long period of time also needs to be cleaned up regularly.

[0060] The crushing chamber 10 is also provided with a rotating shaft 4, and the two exposed sections of the rotating shaft 4 are provided with bearings 5 ​​located below the drain hole 303.

[0061] In this embodiment, the rotating shaft 4 is provided with a crushing blade in the area inside the crushing chamber 10, and a coupling 12 is also provided at one end of the rotating shaft 4 to ensure that the external drive motor can eventually rotate to open the crushing blade.

[0062] At this time, the bearing 5 is mounted on the bearing seat 13, and the rotating shaft 4 is inserted into the bearing 5. The falling clean water c can be reused, that is, the clean water c is sprayed on the bearing 5 to cool the bearing 5 with water, and finally extend the effective service life of the bearing 5.

[0063] The open box unit 3 also includes a U-shaped locking plate 305 disposed on the drain hole 303 and with the silt baffle 304 on its upper end face, and an inclined guide plate 306 disposed on the lower end face of the U-shaped locking plate 305 and used for lateral protection of the clean water body c.

[0064] In this embodiment, the sludge baffle 304, the U-shaped locking plate 305, and the inclined guide plate 306 form a single component, and its structural features and functions are as follows.

[0065] First, as attached Figure 7As shown, the width of the U-shaped locking plate 305 is smaller than the opening width of the drainage hole 303, which allows the component to be easily installed and removed at the drainage hole 303. At this time, the centralized cleaning operation of the settled sludge e is very simple. Just remove the component and use a basin or other utensils to catch it under the drainage hole 303.

[0066] Secondly, the inclined guide plate 306 allows as much of the clean water c, which has a small flow rate and unstable velocity, as possible to flow onto the bearing 5, ensuring a more prominent water cooling effect for the bearing.

[0067] The U-shaped clamping plate 305 needs to fully clamp the bottom plate of the rectangular box 301 to prevent the components from retracting after installation, and the sealing and waterproofing performance of the silt baffle 304 on the left, right and bottom edges is also essential.

[0068] In addition, a water basin needs to be placed below the bearing 5 to ensure that the water does not flow out randomly after cooling.

[0069] The lower end of the inclined guide plate 306 presses against the bearing 5 outward.

[0070] In this embodiment, the aforementioned jamming and lifting structure can ensure that more clean water c flows onto the bearing 5 to enhance the water-cooling protection effect of the bearing. In addition, the fixedly installed bearing 5 can also provide appropriate anti-reverse protection for the component consisting of the sludge baffle 304, the U-shaped locking plate 305, and the inclined guide plate 306.

[0071] The entire aforementioned component is made of elastic rubber, and the width of the silt baffle 304 is greater than that of the drainage hole 303. It is precisely because of its own elasticity that it can be installed by extending upwards and removed downwards from the drainage hole 303.

[0072] The elastic function of the U-shaped clamping plate 305 is to clamp the bottom plate of the rectangular box 301, and the elastic function of the inclined guide plate 306 is to properly support the bearing 5 and facilitate the release of the supporting effect.

[0073] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of the present invention. These are non-inventive modifications and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. An aquaculture waste recycling device based on the concept of wasteless fishery, comprising a crushing bin (10) and an upper feeding pipe (11) arranged on the crushing bin (10), characterized in that: Also included are a double-layered open hopper unit (1) arranged on the upper feeding pipe (11) and used for discharging sludge water (a) downward, a ring-shaped filter screen unit (2) arranged on the double-layered open hopper unit (1) and used for containing and lowering aquaculture garbage (b), and an open box unit (3) arranged on the upper feeding pipe (11) and used for overflowing clean water (c) downward, The double-layered open hopper unit (1) comprises a circular ring-shaped hopper (101) arranged on the upper end surface of the upper feeding pipe (11) and having a large upper part and a small lower part, a central circular tube (102) arranged on the inner ring surface of the circular ring-shaped hopper (101) and having a small upper part and a large lower part, and a sludge water outlet (103) arranged on the circular ring-shaped hopper (101) and located outside the central circular tube (102), The ring-shaped filter screen unit (2) comprises a low fixed circular ring (201) arranged on the outer ring surface of the central circular tube (102), a high movable circular ring (202) arranged on the inner ring surface of the circular ring-shaped hopper (101), and a circular ring-shaped filter screen (203) arranged on the low fixed circular ring (201) and the high movable circular ring (202) and covering the sludge water outlet (103), The open box unit (3) comprises a rectangular box body (301) arranged at a position below the sludge water outlet (103), a mounting hole (302) arranged on the rectangular box body (301) and used for inserting the upper feeding pipe (11), two drain holes (303) respectively arranged at positions on both ends of the bottom plate of the rectangular box body (301), and a silt baffle (304) arranged at a position between the drain holes (303) and the upper feeding pipe (11).

2. The device for recycling and reusing the garbage of aquaculture based on the concept of wasteless fishery according to claim 1, characterized in that: The sludge water outlet (103) is in the shape of a fan ring and has a number of 5-10.

3. The device for recycling and reusing the garbage of aquaculture based on the concept of wasteless fishery according to claim 1, characterized in that: The ring-shaped filter screen unit (2) further comprises a connecting rope (204) arranged on the high movable circular ring (202) and hanging downward from the upper edge of the circular ring-shaped hopper (101), and a counterweight circular ring (205) arranged on the connecting rope (204) and used for directly lifting the circular ring-shaped filter screen (203) and indirectly lowering the aquaculture garbage (b).

4. The device for recycling and reusing the garbage of aquaculture based on the concept of wasteless fishery according to claim 3, characterized in that: The number of the connecting ropes (204) is 3-5.

5. The device for recycling and reusing waste from aquaculture based on the concept of wasteless fishery according to claim 1, characterized in that: The pulverizing bin (10) is further provided with a rotating shaft (4), and bearings (5) are arranged at positions below the drain holes (303) on both exposed sections of the rotating shaft (4).

6. The device for recycling and reusing the garbage of aquaculture based on the concept of wasteless fishery according to claim 5, characterized in that: The open box unit (3) further comprises a U-shaped clamping plate (305) arranged on the drain holes (303) and provided with the silt baffle (304) on the upper end surface, and an inclined guide plate (306) arranged on the lower end surface of the U-shaped clamping plate (305) and used for laterally protecting the clean water (c).

7. The device for recycling and reusing the garbage of aquaculture based on the concept of wasteless fishery according to claim 6, characterized in that: The lower end of the inclined guide plate (306) outwardly abuts against the bearing (5).

Citation Information

Patent Citations

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    CN204658748U

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