A multi-layer three-dimensional circulating water breeding system for haminoeaves and a method of use

Abstract

The present application relates to a kind of multi-layer three-dimensional circulation water aquaculture system of haminoeae and use method, it is related to haminoeae factory farming technical field, including breeding box group, system support, circulation water aquaculture system and water distribution pipe, breeding basket and gauze, the breeding box group is set on system support, the one end of breeding box group is connected with the output end of circulation water aquaculture system by water inlet pipe, the other end of breeding box group is connected with the input end of circulation water aquaculture system by backwater pipe, the inside of each breeding box is provided with breeding basket, gauze is provided in breeding basket, breeding haminoeae and bottom material are placed on gauze, the water distribution pipe is connected with water inlet pipe, the water distribution pipe is set below breeding basket.The present application greatly improves the space utilization and unit yield of haminoeae factory farming.And it is very convenient to collect growed spiral.

Description

Technical Field

[0001] This invention relates to the field of industrialized farming technology for the spotted worm snail, and more specifically, to a multi-layer three-dimensional recirculating aquaculture system for the spotted worm snail and its usage method. Background Technology

[0002] In recent years, the aquaculture industry of Babylonia areolata has developed rapidly. However, the current mainstream flowing water sand layer self-purification aquaculture model in my country has drawbacks such as low space utilization, difficulty in removing some solid pollutants, and inconvenience of manual operation. These problems lead to low aquaculture efficiency, sand layer decay, water quality deterioration, and frequent disease outbreaks, which are increasingly becoming obstacles to the green and healthy development of the Babylonia areolata aquaculture industry.

[0003] Therefore, based on the biological characteristics of the spotted worm snail, further optimizing its cultivation methods, making full use of cultivation space, increasing unit yield and efficiency, and reducing disease incidence have become urgent problems to be solved in this field. It is necessary to provide a new spotted worm snail cultivation device to address these issues. Summary of the Invention

[0004] In response to the aforementioned technical problems, a multi-layer three-dimensional recirculating aquaculture system for the spotted snail and its usage method are provided, aiming to improve the utilization rate of aquaculture space, optimize sewage discharge efficiency, reduce disease occurrence, and simplify manual operation procedures.

[0005] The technical means employed in this invention are as follows:

[0006] A multi-layer three-dimensional recirculating aquaculture system for *Bambusa spp.* includes a group of culture tanks, a system support frame, a recirculating aquaculture system, a water distribution pipe, culture baskets, and a mesh screen. The culture tanks are mounted on the system support frame. One end of the culture tanks is connected to the output end of the recirculating aquaculture system via an inlet pipe, and the other end is connected to the input end of the recirculating aquaculture system via a return pipe. Each culture tank contains a culture basket with a mesh screen inside. The *Bambusa spp.* and substrate are placed on the mesh screen. The water distribution pipe is connected to the inlet pipe and is located below the culture basket.

[0007] Furthermore, the recirculating aquaculture system includes a sedimentation tank, a biological purification tank, an ultraviolet sterilization tank, and an aeration tank connected in sequence. The sedimentation tank is connected to a return water pipe, and the aeration tank is connected to the return water pipe.

[0008] Furthermore, the water distribution pipe is provided with downward-facing water outlet holes at preset intervals.

[0009] Furthermore, the inlet end of the return water pipe is connected to the overflow pipe, which is vertically installed inside the breeding tank, and the opening of the overflow pipe is located at its top.

[0010] Furthermore, the system support is equipped with a track, and the bottom of the breeding box is equipped with rollers that can move on the track.

[0011] Furthermore, the mesh size is 80-120 mesh.

[0012] Furthermore, the water distribution pipe is made of PVC, and the inlet and outlet pipes are flexible rubber hoses.

[0013] Furthermore, the recirculating aquaculture system is also connected to a water storage tank.

[0014] This invention also discloses a method for using the above-mentioned multi-layer three-dimensional recirculating aquaculture system for the spotted snail, comprising the following steps:

[0015] Assemble a recirculating aquaculture system, with the spotted snails located in the substrate supported by the mesh on the culture basket;

[0016] The wastewater generated after the breeding of whelks flows into the sedimentation tank through the overflow plate and return water pipe via the water distribution pipe at the bottom of the breeding tank.

[0017] After physical filtration, the water enters the biological purification tank via a circulation pump. It then undergoes UV sterilization by UV lamps and oxygenation by aeration equipment to complete the water circulation process. The treated water is then transported to the aquaculture tanks via inlet and distribution pipes.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Based on the characteristics of shallow water culture of the spotted snail, a three-dimensional culture system with at least three layers is designed. At the same time, the daily maintenance and management area is transferred to the outside of the system by the pull-out culture box group, which reduces the distance between layers and greatly improves the space utilization rate and unit yield of the factory culture of the spotted snail.

[0020] 2. Based on the characteristics of sand-dwelling culture of the spotted snail, the water distribution pipe is placed at the bottom of the culture tank group, so that the water inlet direction is from bottom to top and finally overflows from the top, which improves the removal efficiency of pollutants remaining in the culture bottom, effectively improves the problem of bottom decay, and reduces the incidence of diseases; at the same time, the water outlet of the water distribution pipe is ensured to face downward to avoid directly scouring the culture bottom.

[0021] 3. Based on the characteristics of sand-dwelling culture of the square-spotted roe snail and price negotiation according to size, a mesh screen is placed on the culture basket in the culture box group for roe snail culture. When the roe snails are collected after they have grown up, the mesh screen is removed directly, allowing the substrate to fall through the culture basket to the bottom of the culture box, while the cultured roe snails are retained in the culture basket, which greatly facilitates the collection of grown snails. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of the aquaculture area of ​​the multi-layer three-dimensional recirculating aquaculture system for the spotted snail.

[0024] Figure 2 This is a flowchart of the water circulation process in this invention.

[0025] Figure 3 This is a schematic cross-sectional view of the breeding box in this invention.

[0026] Figure 4 This is a schematic diagram of the water distribution pipe in the pull-out aquaculture box of the present invention.

[0027] In the diagram: 1. Breeding box assembly; 2. Breeding box; 3. System support frame; 4. Sedimentation tank; 5. Microfilter; 6. Biological purification tank; 7. Ultraviolet sterilization tank; 8. Oxygenation tank; 9. Circulation pump; 10. Water distribution pipe; 11. Water inlet pipe; 12. Water return pipe; 13. Breeding basket; 14. Mesh screen; 15. Water storage tank; 16. Overflow pipe; 17. Roller; 18. Sedimentation tank drainage pipe. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. 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.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0035] like Figures 1-4 As shown in the figure, an embodiment of the present invention discloses a multi-layer three-dimensional recirculating aquaculture system for *Bambusa spp.*, including a culture box group 1, a system support 3, a recirculating aquaculture system, a water distribution pipe 10, a culture basket 13, and a mesh screen 14. The culture box group 1 is set on the system support 3. One end of the culture box group 1 is connected to the output end of the recirculating aquaculture system through a water inlet pipe 11, and the other end of the culture box group is connected to the input end of the recirculating aquaculture system through a water return pipe 12. The culture box group includes several culture boxes 2, and each culture box 2 is provided with a culture basket 13 inside. A mesh screen 14 is provided in the culture basket 13. The *Bambusa spp.* and substrate are placed on the mesh screen 14. The water distribution pipe 10 is connected to the water inlet pipe 11 and is located below the culture basket 13.

[0036] The breeding basket 13 is a hollow structure placed in the breeding box, with a fixed mesh spacing of 0.5*0.5 cm;

[0037] In this embodiment, the aquaculture tank group 1 consists of several aquaculture tanks 2 and is supported by a system frame 3. The recirculating aquaculture system has 3 to 5 layers, with each layer containing 3 to 5 aquaculture tanks. The dimensions of a single aquaculture tank are 200*100*40 cm. Preferably, an escape-proof net can be added to the top of the aquaculture tank.

[0038] This invention designs a three-dimensional aquaculture system with at least three layers and employs pull-out aquaculture tanks. By reducing the spacing between layers, this invention improves space utilization and moves daily maintenance and management areas outside the system, facilitating operation and management by aquaculture personnel and increasing unit yield. The multi-layer structure makes full use of vertical space, while the pull-out aquaculture tanks facilitate maintenance, cleaning, and collection of snails. Together, these features achieve an efficient and convenient aquaculture model.

[0039] Furthermore, the recirculating aquaculture system includes a sedimentation tank 4, a biological purification tank 6, an ultraviolet sterilization tank 7, and an aeration tank 8 connected in sequence. The sedimentation tank 4 is connected to a return water pipe 12, and the aeration tank 8 is also connected to the return water pipe 12. The circulating water in the aquaculture tank group 1 flows through the overflow plate and return water pipe 12 to the sedimentation tank 4. The bottom of the sedimentation tank slopes towards the center to form a drain outlet. Some waste particles collect at the bottom of the sedimentation tank 4 and are then discharged through the sedimentation tank drain pipe 18. The remaining polluting particles are collected and discharged by a microfilter 5. The microfilter 5 is located in the sedimentation tank. After filtration by the microfilter 5, the water enters the biological purification tank 6 through a circulation pump 9. The circulation pump 9 is located in the water tank where the output end of the microfilter 5 is located.

[0040] Furthermore, the water distribution pipe 10 is provided with downward-facing water outlet holes at preset intervals. In this embodiment, the water distribution pipe 10 is a U-shaped pipe, arranged at the bottom of the breeding box assembly 1. The breeding box 2 is made of high-quality PP sheet, the system support 3 is made of galvanized steel pipe, and the breeding basket 13 is made of fiberglass (FRP). The water distribution pipe 10 is made of PVC, and the inlet pipe 11 and return pipe 12 are flexible rubber hoses with a certain margin to ensure continuous connection of the inlet pipe 11 and return pipe 12 after the breeding box slides out of the slide rail. By transferring the daily maintenance and management area to the outside of the system through the pull-out breeding box assembly 1, the interlayer spacing is reduced, which greatly improves the space utilization rate and unit yield of the factory-scale breeding of the spotted snail. Each breeding box has an independent inlet pipe 11 and return pipe 12 to ensure differentiated breeding for different breeding boxes.

[0041] This invention places the water distribution pipe at the bottom of the culture tank, with water flowing from bottom to top and overflowing from the top. Based on the characteristics of sand-dwelling culture of the spotted snail, this improves the efficiency of removing residual pollutants from the culture substrate, effectively mitigating substrate decay and reducing disease incidence. Simultaneously, ensuring the water outlet of the distribution pipe faces downwards avoids direct erosion of the culture substrate, protecting the snail's living environment. The special arrangement of the water distribution pipe and the water flow direction design work together to optimize water quality conditions and the culture environment, improving the health and stability of the culture.

[0042] Furthermore, the inlet end of the return water pipe 12 is connected to the overflow pipe 16, which is vertically installed inside the breeding box 2 and outside the breeding basket. The opening of the overflow pipe 16 is located at its top, extending a predetermined distance above the bottom of the breeding box.

[0043] Furthermore, the system support 3 is equipped with a track, and the bottom of the breeding box 2 is equipped with rollers 17 that can move on the track. It can be pulled out from the system support via the track and rollers.

[0044] Furthermore, the mesh 14 is 80-120 mesh. The breeding basket 13 is placed in the breeding box, and the mesh 14 is laid on the breeding basket 13. The breeding snails and the substrate (natural sand, fine ceramic granules, etc.) are placed on the mesh 14; preferably, the mesh 14 used is 80 mesh.

[0045] This invention involves placing a culture basket within a culture box and then covering the basket with a mesh screen for cultivating *Bombyx mori* snails. When collecting the snails after they have matured, the mesh screen is simply removed. The substrate flows through the basket and into the bottom of the culture box, while the snails remain in the basket, greatly facilitating collection. The combination of the culture basket and mesh screen not only provides a suitable growth environment for the snails but also simplifies the collection process and improves work efficiency. These two elements work in conjunction with other parts of the entire culture system to achieve integrated cultivation and collection, reducing operational steps and stress on the snails.

[0046] Furthermore, the recirculating aquaculture system is also connected to a water storage tank 15 for water replenishment to ensure normal system operation.

[0047] This invention significantly increases the yield of spotted worm snails per unit area through the multi-layered, three-dimensional arrangement of a pull-out culture box. Water enters from the bottom of the culture box, optimizing water conditions and improving water purification efficiency compared to traditional worm snail culture methods, thus reducing disease occurrence. Furthermore, the addition of culture baskets within the culture box greatly facilitates the collection of spotted worm snails after they have matured.

[0048] As another optional implementation, water quality monitoring and automated control functions can be configured in the circulating water system, and water quality monitoring equipment can be added, specifically including pH sensors, dissolved oxygen sensors, ammonia nitrogen and nitrite sensors, etc. In conjunction with the automated control system, the treatment process of circulating water can be automatically adjusted according to the monitoring data. Specifically, this can include functions such as automatically controlling the start and stop of aeration equipment and adjusting water flow rate, so as to achieve more precise water quality management and improve the stability and reliability of aquaculture.

[0049] This invention also discloses a method for using the above-mentioned multi-layer three-dimensional recirculating aquaculture system for the spotted snail, comprising the following steps:

[0050] Assemble a recirculating aquaculture system, with the spotted snails located in the substrate supported by the mesh on the culture basket;

[0051] The wastewater generated after the breeding of whelks flows into the sedimentation tank through the overflow plate and return water pipe via the water distribution pipe at the bottom of the breeding tank.

[0052] After physical filtration, the water enters the biological purification tank through a circulating pump to remove harmful substances such as ammonia nitrogen and nitrite. Then, it undergoes ultraviolet sterilization by UV sterilization lamps and oxygenation by aeration equipment to complete the water circulation process. The treated water is then transported to the aquaculture tanks through inlet and distribution pipes.

[0053] After the above-mentioned device is set up, the actual effect of the system in raising spotted snails is verified:

[0054] Select snails of uniform size from the same batch, at a density of 1000 snails / m². 2 The density of the aquatic organisms was placed in the device of this invention (experimental group) and the traditional flowing water aquaculture pond (control group). The aquaculture cycle was 3 months. During this period, the salinity was in the range of 32-35‰, the dissolved oxygen content was greater than 5 mg / L, the pH was 6.5-7.0, the ammonia nitrogen content was less than 0.8 mg / L, and the nitrite nitrogen content was less than 0.02 mg / L.

[0055] During the breeding period, fresh blue trevally (Decapterus maruadsi) were fed at a weight of 5% of the experimental snails' body weight. The snails were weighed every 15 days to update the feeding amount. The feeding frequency was 2-3 consecutive days followed by a 1-day fast. The feeding time was 19:00-20:00 daily. Fish bones were cleaned and the bottom sand was rinsed regularly.

[0056] The growth and nutritional performance of the experimental and control groups of *Bellamya spp.* after three months of culture are shown in the table below:

[0057]

[0058] The average body weight, shell height, shell width, and feed conversion efficiency of the experimental group were significantly higher than those of the control group.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-layered three-dimensional recirculating aquaculture system for the spotted snail, characterized in that, The system includes a breeding box assembly, a system support frame, a recirculating aquaculture system, a water distribution pipe, breeding baskets, and a mesh screen. The breeding box assembly is mounted on the system support frame. One end of the breeding box assembly is connected to the output end of the recirculating aquaculture system via an inlet pipe, and the other end of the breeding box assembly is connected to the input end of the recirculating aquaculture system via a return pipe. Each breeding box contains a breeding basket with a mesh screen inside. The breeding snails and substrate are placed on the mesh screen. The water distribution pipe is connected to the inlet pipe and is located below the breeding basket. The breeding basket is a hollow structure placed inside the breeding box, with a fixed mesh spacing of 0.5*0.5 cm; the mesh is 80-120 mesh. The water distribution pipe is a U-shaped pipe, which is arranged at the bottom of the breeding box group. The water distribution pipe has downward-facing water outlet holes at preset intervals. The system support is equipped with a track, and the bottom of the breeding box is equipped with rollers that can move on the track; The specific usage method includes the following steps: Assemble a recirculating aquaculture system, with the spotted snails located in the substrate supported by the mesh on the culture basket; The wastewater generated after the breeding of whelks flows into the sedimentation tank through the overflow plate and return water pipe via the water distribution pipe at the bottom of the breeding tank. After physical filtration, the water enters the biological purification tank through a circulation pump, and then undergoes ultraviolet sterilization by UV sterilization lamps and oxygenation by aeration equipment to complete the water circulation process; the treated water is then transported to the breeding tank group through the inlet pipe and the distribution pipe. When collecting the snails after they have been raised, the mesh screen is removed directly, allowing the substrate to fall through the culture basket into the bottom of the culture box, thus retaining the snails in the culture basket.

2. The multi-layer three-dimensional recirculating aquaculture system for *Bellamya squarrosa* according to claim 1, characterized in that, The recirculating aquaculture system includes a sedimentation tank, a biological purification tank, an ultraviolet sterilization tank, and an aeration tank connected in sequence. The sedimentation tank is connected to the return water pipe, and the aeration tank is connected to the return water pipe.

3. The multi-layer three-dimensional recirculating aquaculture system for the spotted snail *Bellamya spp.* according to claim 1, characterized in that, The inlet of the return water pipe is connected to the overflow pipe, which is vertically installed inside the breeding tank, with its opening located at the top.

4. The multi-layer three-dimensional recirculating aquaculture system for the spotted snail *Bellamya spp.* according to claim 1, characterized in that, The water distribution pipe is made of PVC, and the inlet and outlet pipes are flexible rubber hoses.

5. The multi-layer three-dimensional recirculating aquaculture system for *Bellamya squarrosa* according to claim 1, characterized in that, The recirculating aquaculture system is also connected to a water storage tank.

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