Pond water circulation treatment device for breeding blue crabs

Abstract

The invention relates to the technical field of blue crab breeding and water treatment, and discloses a pond water circulation treatment device for blue crab breeding, which comprises a water pond, a driving motor is arranged at the bottom of the water pond, and a rotating seat which is equal to the bottom wall of the water pond in diameter and is attached to the bottom wall of the water pond is arranged at the output end of the driving motor; a plurality of supporting frames are distributed on the circumference of the upper end of the water pool in an array mode, and an annular base is arranged between the other ends of the supporting frames; according to the pond water circulation treatment device for blue crab breeding, the phenomena that large and small juvenile crabs are mixed and attack and prey with each other, and the survival rate of the juvenile crabs is reduced are avoided, and sewage is sucked through suction holes through mutual communication among a water pumping and draining filtering assembly, a rotating connector, a straight pipe, a rotating seat and the suction holes; meanwhile, the dirt suction assembly communicated with the rotating joint sucks impurities floating on the surface of the pond water, and the impurities are pumped out through the pumping and draining filtering assembly and then filtered and recycled, so that the cleanliness of the circulating water and the cleaning effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of blue crab breeding and water treatment, in particular to a pond water circulation treatment device for blue crab seedling breeding. Background Art

[0002] Blue crab seedling cultivation refers to the process of artificial breeding and seedling cultivation of blue crabs. Blue crab seedling cultivation technology is of great significance for improving the survival rate and yield of blue crab farming. Blue crab seedling cultivation is carried out in the seedling pond. In order to ensure the water quality, the water in the seedling pond is generally subjected to water circulation treatment.

[0003] When raising blue crab seedlings, the pond water is pumped out by a water pump, filtered and then discharged back into the seedling pond. The residues and impurities in the water produced by the blue crabs' life will settle to the bottom of the pond. Therefore, ordinary circulating water treatment cannot achieve comprehensive removal of impurities. As the impurities adhere and accumulate, all the water needs to be discharged, the crab seedlings need to be cleaned out and then cleaned, which is difficult to clean. At the same time, the centralized breeding of blue crabs can easily cause blue crabs of different sizes to attack and prey on each other, reducing the survival rate of the breeding. Therefore, we propose a pond water circulation treatment device for blue crab seedling breeding to solve this technical defect of the prior art. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a pond water circulation treatment device for blue crab seed breeding.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pond water circulation treatment device for blue crab seedling cultivation, comprising a water pool, a driving motor is provided at the bottom of the water pool, an output end of the driving motor is provided with a rotating seat with the same diameter as and fitted with the bottom wall of the water pool, a plurality of support frames are distributed in a circular array at the upper end of the water pool, an annular seat is provided between the other ends of the support frames, the lower end of the annular seat is provided with an annular partition seat which is concentric with the water pool and fits and seals with the rotating seat, a plurality of triangular partition plates which are distributed in an annular manner at equal distances and are partitioned and sealed are provided between the annular partition seat and the water pool, a plurality of feeding spaces for feeding food are formed between the triangular partition plates, the rotating seat and the annular partition seat, a plurality of isolation nets which are connected to the feeding spaces and correspond one to one to each other are installed on the annular partition seat, and the aperture sizes of the respective isolation nets are different; An elastic connection component is provided between the support frame and the triangular partition plate, so that the triangular partition plate fits tightly against the rotating seat; The rotating seat is provided with a plurality of suction holes, the upper end of the rotating seat is connected to a straight pipe cocentrically, the upper end of the straight pipe is connected to a rotating joint cocentrically, the rotating joint and the inner wall of the annular partition seat are provided with a plurality of scrapers that fit the bottom wall of the pool and the outside of the straight pipe; The rotary joint is provided with a water pumping and drainage filtering assembly for pumping and draining water; The rotary joint is also provided with a sewage suction component for extracting and filtering floating sewage.

[0006] Furthermore, a support base connected to the drive motor is provided at the bottom of the pool.

[0007] Furthermore, the upper surfaces of the water pool, the annular partition seat and the triangular partition plate are aligned, and the annular partition seat is provided with an insertion hole opened from top to bottom, and the insertion hole is for the isolation net to be inserted and installed.

[0008] Furthermore, the elastic connection assembly includes a connecting ring arranged between the upper surfaces of the triangular partition plates, a plurality of mounting tubes are provided at the upper end of the connecting ring, an elastic member is provided in the mounting tube, and a moving rod is provided at the upper end of the elastic member passing through the mounting tube and connected to the support frame.

[0009] Furthermore, the elastic member is a stainless steel spring, but is not limited to a stainless steel spring.

[0010] Furthermore, the water pumping and filtering assembly includes a support frame arranged on the outside of the upper end of the water pool, and a liquid pump and three filter cartridges are provided on the support frame. A connecting pipe is connected between the liquid suction port of the liquid pump and the rotary joint, and a partition plate is provided in the filter cartridge. Filter layer one, filter layer two and filter layer three are respectively laid on the partition plate. The drainage port of the liquid pump is connected to a drainage pipe which is connected to the three filter cartridges in sequence. The drainage pipe is located below the partition plate, and the other end opening of the drainage pipe is located above the water pool, and an electric switch valve is provided on the outside of the other end.

[0011] Furthermore, a stirring motor is provided at the upper end of the filter cartridge, and a stirring rod is provided at the output shaft of the stirring motor, which is respectively located in the filter layer one, the filter layer two and the filter layer three. The filter cartridge is connected to a sewage pipe extending to the filter layer one, the filter layer two and the filter layer three, respectively, and an electric switch valve is provided on the outside of the sewage pipe.

[0012] Furthermore, an isolation screen is provided at the opening of one end of the sewage pipe located in the filter layer 1, the filter layer 2 and the filter layer 3.

[0013] Furthermore, the sewage suction assembly includes a plurality of suction heads passing through the connecting ring and corresponding to the feeding spaces one by one and located therein, a water pipe is connected between the suction heads and the rotary joint, and the rotary joint is connected to a plurality of sewage suction pipes distributed at equal distances and located in the inner space of the annular partition seat; Wherein, the lower end surface of the suction head is aligned with the lower end surface of the sewage suction pipe.

[0014] Furthermore, a feeding seat concentric with the water pool is provided on the inner side of the support frame, a plurality of feeding holes are provided at the bottom of the feeding seat and are located above the feeding space in a one-to-one correspondence with the feeding space, an electric guide rail driven by a circular trajectory is provided at the upper end of the feeding seat, and a material selection plate is provided at the guide rail slide of the electric guide rail to separate the internal space of the feeding seat.

[0015] Compared with the prior art, the present invention provides a pond water circulation treatment device for blue crab seedling cultivation, which has the following beneficial effects: 1. The pond water circulation treatment device for blue crab seedling cultivation drives the rotating seat to rotate through the provided driving motor, and utilizes the triangular partition plate, the rotating seat and the annular partition seat to form a plurality of feeding spaces for throwing food into or out of the feeding space. While feeding food into or out of the plurality of feeding spaces, crab seedlings of different sizes can enter the respective feeding spaces through the isolation nets connected to the corresponding feeding spaces and utilizing the different aperture sizes of the isolation nets, thereby achieving batch feeding, avoiding competition for food, and providing shelter for crab seedlings of different sizes, thereby preventing large and small crab seedlings from mixing together and attacking and preying on each other, thereby reducing the survival rate of the seedling cultivation. At the same time, the above structure can improve the survival rate of seedlings. When cleaning the circulating water, the triangular partition plate is fitted to the rotating seat and the scraper is fitted to the rotating seat by rotating the rotating seat in conjunction with the elastic connecting component, ensuring that the impurities attached to the surface of the rotating seat are scraped off and mixed into the pool water when the rotating seat rotates. At the same time, the water is pumped out by the drainage filter component, and the sewage is sucked in through the suction hole through the interconnection between the drainage filter component, the rotary joint, the straight pipe, the rotating seat and the suction hole. At the same time, the sewage suction component connected to the rotary joint sucks in the surface floating impurities in the pool water, and simultaneously extracts them through the drainage filter component and filters them for recycling, thereby improving the cleanliness of the circulating water and the cleaning effect.

[0016] 2. The mud crab seedling pond water circulation treatment device stirs the filter layer 1, filter layer 2 and filter layer 3 through the operation of the stirring motor, so that the impurities adsorbed on the filter layer 1, filter layer 2 and filter layer 3 are discharged through the sewage pipe, thereby ensuring the filtering effect of the filter layer 1, filter layer 2 and filter layer 3; The food is stored in the feeding seat, and the electric guide rail is used to drive the material-diverting plate to rotate in conjunction with the feeding seat, so that the food is diverted to each feeding hole and discharged into each feeding space, thereby improving the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a pond water circulation treatment device for blue crab seedling cultivation proposed by the present invention; Figure 2 This is a partially cutaway perspective view of a pond water circulation treatment device for blue crab seedling cultivation proposed by the present invention; Figure 3 This is a cutaway internal perspective view of a water circulation treatment device for blue crab seedling cultivation proposed by the present invention; Figure 4 The invention proposes a water circulation treatment device for mud crab seedling cultivation Figure 2 A top view of Figure 5 This is a partial structural perspective diagram of a water circulation treatment device for blue crab seedling cultivation proposed by the present invention; Figure 6 This is a side perspective view of a pond water circulation treatment device for blue crab seedling cultivation proposed by the present invention; Figure 7 This is a cutaway perspective view of a filter cartridge of a pond water circulation treatment device for blue crab seedling cultivation proposed by the present invention; Figure 8 The invention proposes a water circulation treatment device for mud crab seedling cultivation Figure 7 Side view of; Figure 9 This is an exploded view of the connection between the installation cylinder, elastic member and movable rod of the water circulation treatment device for blue crab seed breeding proposed by the present invention; Figure 10 This is a three-dimensional diagram of the installation structure of the feeding seat of the pond water circulation treatment device for blue crab seed breeding proposed by the present invention.

[0018] In the figure: 1. Water tank; 2. Driving motor; 3. Rotating seat; 4. Support frame; 5. Annular seat; 6. Annular partition seat; 7. Mounting cylinder; 8. Elastic member; 9. Moving rod; 10. Triangular partition plate; 11. Isolation net; 12. Suction hole; 13. Straight pipe; 14. Rotary joint; 15. Suction head; 16. Water pipe; 17. Sewage suction pipe; 18. Scraper; 19. Support frame; 20. Filter cylinder; 21. Partition plate; 22. Filter layer 1; 23. Filter layer 2; 24. Filter layer 3; 25. Liquid pump; 26. Drain pipe; 27. Electric switch valve; 28. Drain pipe; 29. Electric switch valve; 30; Feeding seat; 31. Feeding hole; 32. Electric guide rail; 33. Material diverter plate; 34. Stirring motor; 35. Stirring rod; 36. Connecting pipe; 37. Connecting ring. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 5A pond water circulation treatment device for blue crab seedling cultivation includes a water pool 1 and a drive motor 2: the water pool 1 is cylindrical, and the drive motor 2 is fixed to the center of the bottom by bolts. A support base is installed and fixed to the bottom of the water pool 1. The drive motor 2 is fixed to the bottom of the water pool 1 through the support base, and its output end extends upward and passes through the water pool 1. A sealing ring is provided at the passing end to prevent leakage.

[0021] Rotating seat 3: The output end of the driving motor 2 is connected and fixed with the rotating seat 3. The rotating seat 3 is a circular plate structure. Its diameter is equal to and fits the diameter of the bottom wall of the pool 1 and is located at the bottom of the pool 1.

[0022] Support frame 4 and annular seat 5: A plurality of support frames 4 are installed and fixed in a circular array on the upper end surface of the pool 1. The support frame 4 is an L-shaped rod, and an annular seat 5 is connected and fixed between the other ends. The annular seat 5 is in a circular shape and is located above the opening of the pool 1.

[0023] Annular partition seat 6: An annular partition seat 6 is fixedly installed on the lower end of the annular seat 5. The annular partition seat 6 is in the shape of a circular ring plate, is concentric with the pool 1, and is in close contact with the upper surface of the rotating seat 3 and sealed.

[0024] Triangular partition plate 10: A plurality of triangular partition plates 10 are placed between the annular partition seat 6 and the pool 1. The triangular partition plates 10 are triangular plate-shaped and are distributed at equal distances in a ring, forming a plurality of feeding spaces between the annular partition seat 6 and the pool 1. The lower end of the triangular partition plate 10 is sealed with the upper surface of the rotating seat 3.

[0025] Isolation net 11: A plurality of isolation nets 11 are fixedly mounted on the annular partition seat 6. The isolation nets 11 are connected to the breeding space in a one-to-one correspondence. The apertures thereof are different and are used to distinguish crab seedlings of different sizes.

[0026] It should be added that the upper surfaces of the pool 1, the annular partition seat 6 and the triangular partition plate 10 are aligned, which makes it convenient for the triangular partition plate 10 to scrape off impurities attached to the inner wall of the pool 1 and the outer wall of the annular partition seat 6. The annular partition seat 6 is provided with an insertion hole opened from top to bottom, and the insertion hole is for the isolation net 11 to be inserted and installed, which facilitates the removal, cleaning and replacement of the isolation net 11.

[0027] See also Figures 6 to 9 , elastic connection component: an elastic connection component is provided between the support frame 4 and the triangular partition plate 10, a connecting ring 37 is installed and fixed between the upper surfaces of the triangular partition plate 10, and a plurality of annular mounting tubes 7 with equal distances are installed and fixed on the upper end surface of the connecting ring 37. An elastic member 8 is installed and fixed in the mounting tube 7, such as a stainless steel spring or other alternative elastic telescopic structure. A moving rod 9 is connected and fixed to the upper end surface of the elastic member 8, and the moving rod 9 passes through the mounting tube 7 and is connected and fixed to the support frame 4 to ensure that the triangular partition plate 10 fits tightly with the rotating seat 3.

[0028] Suction hole 12, straight pipe 13, rotary joint 14: A plurality of suction holes 12 are opened on the upper surface of the rotating seat 3, which are evenly distributed. The upper end surface of the rotating seat 3 is connected to the center of the circle with a straight pipe 13, and the upper end surface of the straight pipe 13 is connected to the center of the circle with a rotary joint 14. The rotary joint 14 is located above the pool 1.

[0029] Scraper 18: A plurality of annular scrapers 18 equidistantly distributed are fixed to the inner wall of the annular partition seat 6 . The scrapers 18 fit in contact with the bottom wall of the pool 1 and the outside of the straight pipe 13 to scrape off impurities attached to the surface of the rotating seat 3 .

[0030] 1. Pumping and draining filter assembly: The rotary joint 14 is provided with a pumping and draining filter assembly for pumping water and draining water. A support frame 19 is fixed to the outside of the upper end of the pool 1 by bolts. A liquid pump 25 and three filter cartridges 20 are fixed to the upper surface of the support frame 19 by bolts. The liquid extraction port of the liquid pump 25 is connected to the rotary joint 14 through a connecting pipe 36. A partition plate 21 is provided in the filter cartridge 20. Filter layer 1 22, filter layer 23 and filter layer 3 24 are respectively laid on the partition plate 21. The aperture of the partition plate 21 is smaller than the diameter of filter layer 1 22, filter layer 23 and filter layer 3 24. The drain outlet of the liquid pump 25 is connected to a drain pipe 26. The drain pipe 26 is connected to the three filter cartridges 20 from left to right in sequence. The other end opening is located above the pool 1, which is convenient for the filtered water to be discharged back into the pool 1, and the other end is connected to the outside of the electric switch valve 27.

[0031] Stirring motor 34, stirring rod 35, drain pipe 28: The opening on the upper end surface of the filter cartridge 20 is covered with a cover, and a stirring motor 34 is fixed to the upper surface of the cover by bolts. The output shaft of the stirring motor 34 is connected to the stirring rod 35, and the stirring rod 35 is respectively located in filter layer 1 22, filter layer 2 23 and filter layer 3 24. The filter cartridge 20 is connected with a drain pipe 28, and the drain pipe 28 extends to filter layer 1 22, filter layer 2 23 and filter layer 3 24, and is connected to the outside with an electric switch valve 29. The drain pipe 28 is located at the opening in the filter layer and an isolation net is installed to isolate the filter layer 1 22, filter layer 2 23 and filter layer 3 24 to prevent discharge through the drain pipe 28.

[0032] Sewage suction assembly: The rotary joint 14 is provided with a sewage suction assembly for extracting and filtering floating sewage. A plurality of suction heads 15 are fixed on the connecting ring 37. The suction heads 15 pass through the connecting ring 37 and extend into the breeding space. A water pipe 16 is connected between the suction head 15 and the upper end surface of the rotary joint 14. The lower end surface of the rotary joint 14 is also connected to a plurality of sewage suction pipes 17. The sewage suction pipes 17 are equidistantly distributed in the inner space of the annular partition seat 6. The lower end surfaces of the suction head 15 and the sewage suction pipe 17 are aligned. When water is stored in the pool 1, the liquid level needs to overflow the lower end opening of the suction head 15 and the sewage suction pipe 17.

[0033] See also Figure 10 , feeding seat 30 and related components: the inner surface of the support frame 19 is fixed with a feeding seat 30 by bolts. The feeding seat 30 is annular and concentric with the pool 1. A plurality of feeding holes 31 are provided at the bottom of the feeding seat 30, which correspond to the feeding space one by one and are respectively located above the feeding space. An electric guide rail 32 driven by a circular trajectory is fixed to the upper end surface of the feeding seat 30 by bolts concentrically. A material stripping plate 33 for partitioning the internal space of the feeding seat 30 is installed and fixed at the guide rail slide of the electric guide rail 32, which is used to strip food to the feeding hole 31 for discharge.

[0034] Principle and usage steps of the scheme, crab seedling separation and feeding: the rotating seat 3 is used as the bottom of the pool 1, and multiple feeding spaces for feeding food are formed between the triangular partition plate 10, the rotating seat 3 and the annular partition seat 6, so that food can be fed in multiple feeding spaces. Through the corresponding isolation nets 11 connected to each feeding space, the different aperture sizes of the isolation nets 11 are used to make crab seedlings of different sizes enter each feeding space through the isolation nets 11, so as to realize batch feeding, avoid competing for food, and provide shelter for crab seedlings of different sizes, avoid the mixing of large and small crab seedlings and then attacking and preying on each other, and reduce the survival rate of seedlings. In addition, when feeding, the food is put into the feeding seat 30, and the electric guide rail 32 is used to drive the material diverter plate 33 to rotate in close contact with the feeding seat 30, and the food is diverted to the various feeding holes 31 and discharged into each feeding space, thereby improving the feeding efficiency.

[0035] Water circulation and impurity cleaning: Combined with the above-mentioned isolation structure, when the water circulation in the pool 1 is cleaned, the rotating seat 3 is driven to rotate by the driving motor 2, and the elastic expansion and contraction of the elastic member 8, as well as the sliding expansion and contraction of the mounting tube 7 and the moving rod 9 are utilized to ensure that the triangular partition plate 10 connected below the connecting ring 37 on the mounting tube 7 is always in contact with the surface of the rotating seat 3, and the scraper 18 is synchronously in contact with the surface of the rotating seat 3 to ensure that when the rotating seat 3 rotates, the triangular partition plate 10 and the scraper 18 fully scrape off the impurities attached to the surface of the rotating seat 3 and mix them into the pool water to ensure the cleaning effect. When the rotating seat 3 rotates, the straight pipe 13 is synchronously driven to rotate, and the rotary joint 14 is utilized to connect with the straight pipe 13. The rotational connection of the tube 13 ensures that the passage is formed while the mutual rotation is not interfered with. The liquid pump 25 works through the liquid extraction port of the liquid pump 25, the connecting pipe 36, the rotary joint 14, the straight pipe 13, the rotating seat 3 and the suction hole 12, the water pipe 16, the suction head 15 and the sewage suction pipe 17. The pool water in the breeding space and the inner space of the annular partition seat 6 is extracted through the suction hole 12, and the impurities floating above the pool water and the pool water are sucked in through the suction head 15 and the sewage suction pipe 17, and discharged into the filter layer 1 22, the filter layer 2 23 and the filter layer 3 24 on each partition plate 21 through the drain pipe 26 for filtration layer by layer and then discharged into the pool 1 again, ensuring the cleaning effect and filtering effect.

[0036] Cleaning the filter layer: When the drain pipe 26 stops draining by closing the electric switch valve 27, open the electric switch valve 29 to discharge the water through the sewage pipe 28, and use the stirring motor 34 to stir the filter layer 1 22, the filter layer 2 23 and the filter layer 3 24, so that the impurities adsorbed on the filter layer 1 22, the filter layer 2 23 and the filter layer 3 24 are discharged through the sewage pipe 28, thereby ensuring the filtering effect of the filter layer 1 22, the filter layer 2 23 and the filter layer 3 24 and improving the water purification effect.

[0037] Structural materials, driving motor 2: Use waterproof and moisture-proof industrial-grade motor to ensure stable operation in a humid pool environment and provide sufficient power to drive the rotating seat 3 to rotate.

[0038] Elastic member 8: Made of stainless steel spring, it has good elasticity and fatigue resistance, and can maintain stable elastic force during long-term expansion and contraction, ensuring that the triangular partition plate 10 fits tightly against the rotating seat 3.

[0039] Liquid pump 25: A small, high-efficiency water pump with good corrosion resistance and reliability is selected, which can stably extract pool water for circulation treatment.

[0040] Filter layer 1 22, filter layer 2 23, filter layer 3 24: each uses filter materials of different precisions, such as quartz sand, porous bio-balls and activated carbon, etc., and can also be other materials for purifying water bodies, to filter impurities in the pool water step by step to improve the cleanliness of the water quality.

[0041] Stirring motor 34, stirring rod 35: The stirring motor 34 is a small waterproof motor, and the stirring rod 35 is made of stainless steel.

[0042] The electric guide rail 32 is made of high-precision industrial-grade guide rail, and the material-diverting plate 33 is made of food-grade plastic material to ensure the stable operation of the feeding system and food safety.

[0043] This application is equipped with system control equipment such as a main controller and a power supply, and belongs to an existing equipped control system.

[0044] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pond water circulation treatment device for blue crab seedling cultivation, comprising a pond, characterized in that: The bottom of the pool is provided with a driving motor, and the output end of the driving motor is provided with a rotating seat of the same diameter as and fitted with the bottom wall of the pool. A plurality of support frames are distributed in a circular array on the upper end of the pool, and an annular seat is provided between the other ends of the support frames. The lower end of the annular seat is provided with an annular partition seat which is concentric with the pool and fits and seals with the rotating seat. A plurality of triangular partition plates which are distributed in an annular manner at equal distances and perform partition sealing are provided between the annular partition seat and the pool. A plurality of feeding spaces for feeding food are formed between the triangular partition plates, the rotating seat and the annular partition seat. A plurality of isolation nets are installed on the annular partition seat and are connected to the feeding spaces in a one-to-one correspondence, and the aperture sizes of the respective isolation nets are different. An elastic connection component is provided between the support frame and the triangular partition plate, so that the triangular partition plate fits tightly against the rotating seat; The rotating seat is provided with a plurality of suction holes, the upper end of the rotating seat is connected to a straight pipe cocentrically, the upper end of the straight pipe is connected to a rotating joint cocentrically, the rotating joint and the inner wall of the annular partition seat are provided with a plurality of scrapers that fit the bottom wall of the pool and the outside of the straight pipe; The rotary joint is provided with a water pumping and drainage filtering assembly for pumping and draining water; The rotary joint is also provided with a sewage suction component for extracting and filtering floating sewage.

2. The pond water circulation treatment device for blue crab seedling cultivation according to claim 1, characterized in that: A support base connected to the drive motor is provided at the bottom of the water pool.

3. The pond water circulation treatment device for blue crab seedling cultivation according to claim 1, characterized in that: The upper surfaces of the water pool, the annular partition seat and the triangular partition plate are aligned, and the annular partition seat is provided with an insertion hole opened from top to bottom, and the insertion hole is used for the isolation net to be inserted and installed.

4. The pond water circulation treatment device for blue crab seedling cultivation according to claim 1, characterized in that: The elastic connection assembly includes a connecting ring arranged between the upper surfaces of the triangular partition plates, a plurality of mounting tubes are provided at the upper end of the connecting ring, an elastic member is provided in the mounting tube, and a moving rod is provided at the upper end of the elastic member that passes through the mounting tube and is connected to the support frame.

5. The pond water circulation treatment device for blue crab seedling cultivation according to claim 4, characterized in that: The elastic member is a stainless steel spring, but is not limited to a stainless steel spring.

6. The pond water circulation treatment device for blue crab seedling cultivation according to claim 1, characterized in that: The water pumping and filtering assembly includes a support frame arranged on the outside of the upper end of the water pool, a liquid pump and three filter cartridges are provided on the support frame, a connecting pipe is connected between the liquid suction port of the liquid pump and the rotary joint, a partition plate is provided in the filter cartridge, filter layer one, filter layer two and filter layer three are respectively laid on the partition plate, the drainage port of the liquid pump is connected to a drainage pipe connected to the three filter cartridges in sequence, the drainage pipe is located below the partition plate, and the other end opening of the drainage pipe is located above the water pool, and an electric switch valve is provided on the outside of the other end.

7. The pond water circulation treatment device for blue crab seedling cultivation according to claim 6, characterized in that: A stirring motor is provided at the upper end of the filter cartridge, and a stirring rod is provided at the output shaft of the stirring motor, which is respectively located in the filter layer one, the filter layer two and the filter layer three. The filter cartridge is connected to a sewage pipe extending into the filter layer one, the filter layer two and the filter layer three, respectively, and an electric switch valve is provided on the outside of the sewage pipe.

8. The pond water circulation treatment device for blue crab seedling cultivation according to claim 7, characterized in that: An isolation screen is provided at the opening of one end of the sewage pipe located in the filter layer 1, the filter layer 2 and the filter layer 3.

9. A pond water circulation treatment device for blue crab seedling cultivation according to claim 1 or 4, characterized in that: The sewage suction assembly includes a plurality of suction heads passing through the connecting ring and corresponding to the feeding spaces one by one and located therein, a water pipe is connected between the suction heads and the rotary joint, and the rotary joint is connected to a plurality of sewage suction pipes distributed at equal distances and located in the inner space of the annular partition seat; Wherein, the lower end surface of the suction head is aligned with the lower end surface of the sewage suction pipe.

10. The pond water circulation treatment device for blue crab seedling cultivation according to claim 1 or 6, characterized in that: A feeding seat concentric with the water pool is provided on the inner side of the support frame, a plurality of feeding holes are provided at the bottom of the feeding seat and correspond one-to-one with the feeding space and are located above the feeding space, an electric guide rail driven by a circular trajectory is provided at the upper end of the feeding seat, and a material stripping plate for partitioning the internal space of the feeding seat is provided at the guide rail slide of the electric guide rail.

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