Pinctada fucata recirculating aquaculture device

Abstract

The utility model relates to the technical field of aquaculture, and discloses a pinctada fucata recirculating aquaculture device. The recirculating aquaculture device comprises a pool body; the base plate is located at the top of the pond body and used for driving the breeding cage to automatically move to the outside of the pond body; the two sides of the outer wall of the pond body are connected with a supporting frame through fasteners, the interior of the supporting frame is connected with the two ends of a threaded column through a rotating shaft, the threaded column is connected with one side of an air cylinder through threads, and the top of the air cylinder is connected with a base plate through fasteners, so that the bottom of a breeding cage is cushioned at the top of a collecting tank; the rope knots at the bottoms of the breeding cages are opened, the pinctada fucata in the breeding cages are shaken off into the collecting grooves below, water drips into the grooves through the through holes, and the pinctada fucata slides into the hoppers through the collecting grooves, so that feeding of the breeding cages and the pinctada fucata can be completed, and workers do not need to manually carry the support for feeding; time and labor are saved, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a recirculating aquaculture system for pearl oysters in Hepu. Background Technology

[0002] The Hepu pearl oyster is an important shellfish species for marine pearl farming, mainly distributed along the coasts of Guangdong, Guangxi, and Hainan in my country.

[0003] When cultivating Hepu pearl oysters, a recirculating aquaculture system is used.

[0004] However, in the existing aquaculture equipment, the culture cages are suspended inside the culture pond during the culture of Hepu pearl oysters. When the Hepu pearl oysters have finished cultured and need to be removed, the staff need to manually lift the support frame that fixes the culture cage on the culture pond. Two people need to lift the support frame to move the culture cage to the outside and remove the Hepu pearl oysters inside. The existing culture ponds cannot automatically feed the culture cages, which is time-consuming and labor-intensive and reduces the work efficiency of the staff.

[0005] Furthermore, traditional farming methods suffer from high risks, low efficiency, difficult management, and low yields, making high-density farming impossible and reducing resource utilization. Summary of the Invention

[0006] The purpose of this invention is to provide a recirculating aquaculture system for pearl oysters in Hepu, in order to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a recirculating aquaculture system for pearl oysters in Hepu, comprising:

[0008] Pool body;

[0009] A pad located at the top of the pool body, the pad being used to automatically move the breeding cages to the outside of the pool body;

[0010] The outer walls of the pool are connected to support frames on both sides by fasteners. Inside the support frames, threaded columns are connected to both ends by rotating shafts. The threaded columns are connected to one side of a cylinder by threads. The top of the cylinder is connected to a pad by fasteners. A bracket is provided on the inner side of the pad. The bracket is fixedly connected to the top of the breeding cage. The breeding cage is located inside the pool. An aeration disc is provided on the inner wall of the bottom of the pool. A protein separator is connected to the inner wall of the pool by fasteners. A water outlet pipe is connected to one side of the pool in a through-hole manner. The other end of the water outlet pipe is connected to a circulating water treatment device in a through-hole manner. A water quality detector is connected to the inner wall of the pool by fasteners.

[0011] Preferably, the aeration disc is connected to an air pump via a pipe, the air pump is connected to the outer wall of the pool via fasteners, the bracket and the breeding cage are distributed at equal intervals inside the pool, and the bracket is connected to the top of the pool via a snap-fit ​​mechanism.

[0012] Preferably, a water pump is installed inside the pool body, and the water pump is connected to the outlet pipe away from the circulating water treatment device via a flange. The other end of the circulating water treatment device is connected to the inlet pipe via a flange, and the other end of the inlet pipe passes through and connects to the pool body.

[0013] Preferably, the inlet pipe is connected to the turbidity meter and the salinity meter via a flange, and the top of the pool is connected to the feeding pipe via fasteners, with the feeding pipes distributed at equal intervals on the pool.

[0014] Preferably, one end of the feeding pipe is connected to the metering pump via a flange, the other end of the metering pump is connected to the inside of the material box via a pipe, and the metering pump is connected to the top of the material box via fasteners.

[0015] Preferably, one end of the threaded column is connected to the motor output shaft via a fastener, the motor is connected to the support frame via a fastener, one end of the pool body is connected to the collection trough via a fastener, the top of the collection trough has a through hole, the inside of the collection trough has a groove, and the inside of the collection trough is connected to a wastewater pipe through a through-hole.

[0016] Preferably, the water inlet of the protein separator is connected to the housing through a through-hole, and the first filter screen and the second filter screen are respectively connected inside the housing by fasteners.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] Firstly, this utility model, by setting up a pad and a support, can automatically unload the culture cages. When it is necessary to collect the cultured pearl oysters, the cylinder is opened by a solenoid valve. The cylinder extends and retracts, moving the pad. The pad moves the support to be unloaded upwards until the culture cage at the bottom of the support moves to the outside of the pool. Then, the motor is turned on, and the motor drives the threaded column to rotate through the output shaft. The threaded column drives the cylinder to move through the thread. The cylinder moves the support and culture cage through the pad until the culture cage moves above the collection trough. The solenoid valve controls the cylinder to descend, so that the bottom of the culture cage is placed on top of the collection trough. A hopper is placed on one side of the collection trough. The knot at the bottom of the culture cage is opened, and the pearl oysters in the culture cage are shaken into the collection trough below. Water drips into the groove through the through hole, and the pearl oysters slide into the hopper through the collection trough. This completes the unloading of the culture cages and pearl oysters. There is no need for workers to manually move the support for unloading, saving time and labor and effectively improving work efficiency.

[0019] Secondly, this utility model, by incorporating a water quality detector and a circulating water treatment device, enables highly efficient cultivation of Hepu pearl oysters. Artificial seawater is injected into the cultivation pond to a depth of 1.8m. The water pump is then activated, transporting the water from the pond through an outlet pipe to the circulating water treatment device. Nitrifying bacteria are added to the circulating water treatment device, and continuous aeration is maintained for 48 hours until the ammonia nitrogen degradation rate exceeds 90%. Feeding is performed four times daily at set times, with microalgae feed injected via a metering pump at a flow rate of 0.5L / min and a feed concentration of 5×10⁻⁶. 6 The system automatically detects ammonia nitrogen every 2 hours. If the concentration is >0.1mg / L, it activates denitrifying bacteria supplementation and uploads the data to the cloud platform. It automatically triggers water quality adjustment or alarms, such as activating the aeration disc when dissolved oxygen is insufficient. Through functions such as controlling water temperature, water quality purification and monitoring, precise feed supply, and controlling aquaculture wastewater discharge, the three-dimensional ecological niche design simulates the intertidal feeding environment through stratified aquaculture and directional water flow circulation, enhancing the physiological activity of shellfish. It can achieve high-density aquaculture of 800-1000 shellfish / m³, which can significantly improve the utilization rate of limited resources, optimize aquaculture conditions, and increase the density of aquaculture and the utilization rate of resources. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the back structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the aquaculture net and water pump structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the pad and threaded column structure of this utility model;

[0025] Figure 6 This is a flowchart of the operating system of this utility model.

[0026] The components include: 1. Pool body; 2. Support frame; 3. Breeding cage; 4. Feeding pipe; 5. Feed bin; 6. Metering pump; 7. Collection trough; 8. Through hole; 9. Outlet pipe; 10. Turbidity meter; 11. Salinity meter; 12. Circulating water treatment device; 13. Protein skimmer; 14. Aeration disc; 15. Water pump; 16. Groove; 17. Inlet pipe; 18. Cylinder; 19. Wastewater pipe; 20. Support frame; 21. Motor; 22. Threaded column; 23. Water quality detector; 24. Shell; 25. First filter screen; 26. Second filter screen; 27. Pad; 28. Air pump. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 The Hepu pearl oyster recirculating aquaculture system includes:

[0029] Pool body 1;

[0030] The pad 27 located at the top of the pool 1 is used to automatically move the breeding cage 3 to the outside of the pool 1.

[0031] The outer walls of the pool 1 are connected to the support frame 20 via fasteners on both sides. Inside the support frame 20, the two ends of the threaded column 22 are connected via a rotating shaft. The threaded column 22 is threaded to one side of the cylinder 18. The top of the cylinder 18 is connected to the pad 27 via fasteners. A bracket 2 is provided inside the pad 27, and the bracket 2 is fixedly connected to the top of the breeding cage 3. The breeding cage 3 is located inside the pool 1. An aeration disc 14 is provided on the bottom inner wall of the pool 1. A protein separator 13 is connected to the inner wall of the pool 1 via fasteners. One side of the pool 1 is connected to the outlet pipe 9 via a through-hole connection. The other end of the outlet pipe 9 is connected to the circulating water treatment device 12 via a through-hole connection. A water quality detector 23 is connected to the inner wall of the pool 1 via fasteners. When the cylinder 18 is opened via a solenoid valve, the cylinder 18 extends and retracts, causing the pad 27 to move. The pad 27 then moves the support 2, which needs to be fed, upwards until... The breeding cage 3 at the bottom of the support 2 moves to the outside of the pool 1, and then the motor 21 is turned on. The motor 21 drives the threaded column 22 to rotate through the output shaft. The threaded column 22 drives the cylinder 18 to move through the thread. The cylinder 18 drives the support 2 and the breeding cage 3 to move through the pad 27 until the breeding cage 3 moves above the collection trough 7. The cylinder 18 is lowered by controlling the solenoid valve so that the bottom of the breeding cage 3 is placed on the top of the collection trough 7. A hopper is placed on one side of the collection trough 7. The knot at the bottom of the breeding cage 3 is opened, and the pearl oysters in the breeding cage 3 are shaken into the collection trough 7 below. Water drips into the groove 16 through the through hole 8. The pearl oysters slide into the hopper through the collection trough 7, thus completing the feeding of the breeding cage 3 and the pearl oysters. There is no need for the staff to manually move the support 2 to feed, which saves time and effort and effectively improves work efficiency.

[0032] Specifically, the aeration disc 14 is connected to the air pump 28 through a pipe, the air pump 28 is connected to the outer wall of the pool body 1 through fasteners, the support 2 and the breeding cage 3 are distributed at equal intervals inside the pool body 1, and the support 2 is connected to the top of the pool body 1 by a snap-fit ​​mechanism.

[0033] Through the above technical solution, all the devices in this application are connected to the controller. The Siemens S7-1200 PLC controller is linked to the pure oxygen aerator, ozone pump, and feed feeder to realize threshold triggering, such as when DO < 5mg / L, the oxygenation tank 1 is a reinforced concrete structure with dimensions of 20m long × 5m wide × 2m deep. It is equipped with 6 layers of detachable ABS breeding racks with a spacing of 30cm between each layer. The breeding cage 3 is a polyethylene mesh cage with a mesh size of 1cm × 1cm. Each cage hangs 80-100 pearl shells of 2-3cm in length, with a vertical density of 800-1000 shells / m³.

[0034] Specifically, a water pump 15 is installed inside the pool body 1. The water pump 15 is connected to the outlet pipe 9 via a flange, away from the circulating water treatment device 12. The other end of the circulating water treatment device 12 is connected to the inlet pipe 17 via a flange. The other end of the inlet pipe 17 passes through and connects to the pool body 1.

[0035] According to the above technical solution, the circulating water treatment device 12 includes: a biological purification module, a disinfection module, and a temperature and salinity control module. The biological purification module has an MBBR reaction tank with a volume of 10m³, filled with polyethylene suspended packing material with a specific surface area of ​​800m² / m³, a filling rate of 60%, and a hydraulic retention time (HRT) of 4 hours. The disinfection module has 6 sets of 80W ultraviolet lamps with a wavelength of 254nm connected in series with an ozone generator with a production capacity of 10g / h, and the ozone concentration is controlled at 0.2mg / L. The temperature and salinity control module has a titanium alloy plate heat pump with a heating COP of 4.2 and a cooling COP of 3.8 to maintain a water temperature of 25±1℃. The reverse osmosis membrane group has a desalination rate of 98% and adjusts the salinity to 28±1‰.

[0036] Specifically, the inlet pipe 17 is connected to the turbidity meter 10 and the salinity meter 11 via a flange, and the top of the tank body 1 is connected to the feeding pipe 4 via fasteners. The feeding pipes 4 are distributed at equal intervals on the tank body 1.

[0037] Through the above technical solution, parameters such as pH, dissolved oxygen (DO) > 5 mg / L, ammonia nitrogen < 0.1 mg / L, and turbidity (NTU) < 10 are monitored in real time. The system is remotely controlled via the Internet of Things (IoT): data is uploaded to a cloud platform, automatically triggering water quality adjustments or alarms. Aquaculture wastewater is treated and used for microalgae cultivation, with the algae reused as feed, forming a material cycle. This achieves a 95% recycling rate and saves over 90% of water. Through multi-barrier water treatment and dual ultraviolet-ozone sterilization, physical-biological-chemical three-stage purification is achieved, ensuring a pathogenic microorganism kill rate > 99.9% and a disease incidence rate < 5%.

[0038] Specifically, one end of the feeding pipe 4 is connected to the metering pump 6 via a flange, and the other end of the metering pump 6 is connected to the inside of the material box 5 via a pipe. The metering pump 6 is connected to the top of the material box 5 via fasteners.

[0039] Through the above technical solution, microalgae feed such as Chaetoceros and Chlorella are released according to the feeding rhythm of shellfish by linking metering pump 6 with PLC controller.

[0040] Specifically, one end of the threaded column 22 is connected to the output shaft of the motor 21 via a fastener, the motor 21 is connected to the support frame 20 via a fastener, one end of the pool body 1 is connected to the collection tank 7 via a fastener, the top of the collection tank 7 is provided with a through hole 8, the inside of the collection tank 7 is provided with a groove 16, and the inside of the collection tank 7 is connected to the wastewater pipe 19 through a through-hole.

[0041] Through the above technical solution, the motor 21 and the output shaft are integrated. The motor 21 rotates through the output shaft. The motor 21 is a servo motor 21, and the model of the motor 21 is ECMA-C1-0604-RS servo motor 21. The collection tank 7 is used to collect the feed from the Hepu pearl oysters that have completed cultivation, and at the same time, it filters the water on the cultivation cage 3.

[0042] Specifically, the water inlet of the protein separator 13 is connected to the housing 24 through a through-hole, and the first filter screen 25 and the second filter screen 26 are connected to the inside of the housing 24 by fasteners.

[0043] Through the above technical solution, the primary screen is 200μm → the secondary screen is 100μm → the protein separator 13, with a processing capacity of 50m³ / h. It automatically backwashes twice a day. The multi-stage screen with a pore size of 50-200μm and the protein separator 13 remove suspended particles and organic debris. Energy saving optimization: the installed capacity of the solar photovoltaic panel is 50kW to supply daytime power, and the grid power complement ensures nighttime operation, reducing the overall energy consumption by 35%.

[0044] In operation, when collecting the cultured pearl oysters, the solenoid valve opens cylinder 18. Cylinder 18 extends and retracts, moving the pad 27. The pad 27 then moves the support 2, which needs to be fed, upwards until the culture cage 3 at the bottom of the support 2 moves to the outside of the tank 1. Then, motor 21 is turned on. Motor 21 drives the threaded column 22 to rotate via its output shaft. The threaded column 22 drives cylinder 18 to move via its threads. Cylinder 18, through the pad 27, moves the support 2 and the culture cage 3 until the culture cage 3 moves above the collection trough 7. The solenoid valve then controls cylinder 18 to descend. Lower the cage 3 so that its bottom rests on top of the collection trough 7. Place a feed hopper on one side of the collection trough 7. Untie the knot at the bottom of the cage 3 and shake the pearl oysters inside into the collection trough 7 below. Water drips through the through-hole 8 into the groove 16, and the pearl oysters slide down the collection trough 7 into the feed hopper. Add water to adjust the salinity of the artificial seawater to 28‰ and fill the culture pond to a depth of 1.8m. Start the water pump 15, which pumps the water inside the pond 1 to the circulating water treatment device 12 through the outlet pipe 9. Add nitrifying bacteria agent at a concentration of 1×10 to the circulating water treatment device 12. 6CFU / mL, continuous aeration for 48 hours until ammonia nitrogen degradation rate >90%, feeding four times daily at 6:00, 12:00, 18:00, and 24:00, using Chlorella as the main microalgae feed injected via metering pump 6 at a flow rate of 0.5 L / min, with a feed concentration of 5 × 10⁻⁶. 6 The system automatically detects ammonia nitrogen every 2 hours. If the concentration is >0.1mg / L, it initiates the addition of denitrifying bacteria at a dosage of 0.1L / m³. The data is uploaded to the cloud platform, automatically triggering water quality adjustment or alarms. For example, if dissolved oxygen is insufficient, the aeration disc 14 is activated. Through functions such as controlling water temperature, water quality purification and monitoring, precise feed supply, and controlling aquaculture wastewater discharge, the three-dimensional ecological niche design simulates the intertidal feeding environment by using stratified aquaculture and directional water flow circulation at a speed of 5-10cm / s, thereby enhancing the physiological activity of shellfish and completing the work.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A recirculating aquaculture system for pearl oysters in Hepu, characterized in that: include: pool(1); A pad (27) is located on top of the pool body (1), and the pad (27) is used to drive the breeding cage (3) to move automatically to the outside of the pool body (1); The outer walls of the pool (1) are connected to the support frame (20) by fasteners on both sides. The support frame (20) is connected to the two ends of the threaded column (22) by a rotating shaft. The threaded column (22) is connected to one side of the cylinder (18) by a thread. The top of the cylinder (18) is connected to the pad (27) by fasteners. The pad (27) is provided with a bracket (2) on the inner side. The bracket (2) is fixedly connected to the top of the breeding cage (3). The breeding cage (3) is located inside the pool (1). The bottom inner wall of the pool (1) is provided with an aeration plate (14). The inner wall of the pool (1) is connected to the protein separator (13) by fasteners. One side of the pool (1) is connected to the water outlet pipe (9) in a through-hole manner. The other end of the water outlet pipe (9) is connected to the circulating water treatment device (12) in a through-hole manner. The inner wall of the pool (1) is connected to the water quality detector (23) by fasteners.

2. The recirculating aquaculture system for pearl oysters in Hepu as described in claim 1, characterized in that: The aeration disc (14) is connected to the air pump (28) through a pipe. The air pump (28) is connected to the outer wall of the pool body (1) through fasteners. The bracket (2) and the breeding cage (3) are distributed at equal intervals inside the pool body (1). The bracket (2) is connected to the top of the pool body (1) by a snap-fit.

3. The recirculating aquaculture system for pearl oysters in Hepu as described in claim 1, characterized in that: The pool body (1) is equipped with a water pump (15). The water pump (15) is connected to the outlet pipe (9) through a flange and is away from the circulating water treatment device (12). The other end of the circulating water treatment device (12) is connected to the inlet pipe (17) through a flange. The other end of the inlet pipe (17) is connected through the pool body (1).

4. The recirculating aquaculture system for pearl oysters in Hepu as described in claim 3, characterized in that: The inlet pipe (17) is connected to the turbidity meter (10) and the salinity meter (11) via a flange. The top of the pool body (1) is connected to the feeding pipe (4) via fasteners. The feeding pipes (4) are evenly distributed on the pool body (1).

5. The recirculating aquaculture system for pearl oysters in Hepu according to claim 4, characterized in that: One end of the feeding pipe (4) is connected to the metering pump (6) via a flange, and the other end of the metering pump (6) is connected to the inside of the material box (5) via a pipe. The metering pump (6) is connected to the top of the material box (5) via fasteners.

6. The recirculating aquaculture system for pearl oysters in Hepu as described in claim 1, characterized in that: One end of the threaded column (22) is connected to the output shaft of the motor (21) by a fastener. The motor (21) is connected to the support frame (20) by a fastener. One end of the pool body (1) is connected to the collection tank (7) by a fastener. The top of the collection tank (7) is provided with a through hole (8). The inside of the collection tank (7) is provided with a groove (16). The inside of the collection tank (7) is connected to a wastewater pipe (19) in a through-hole manner.

7. The recirculating aquaculture system for pearl oysters in Hepu as described in claim 1, characterized in that: The inlet of the protein separator (13) is connected to the housing (24) through a through-hole, and the first filter screen (25) and the second filter screen (26) are connected to the inside of the housing (24) by fasteners.

Images