Factory-like recirculating aquaculture system for finless eels

Abstract

The invention relates to the technical field of ricefield eel breeding, in particular to a ricefield eel factory circulating water breeding system which comprises a breeding frame, a breeding mechanism, a water treatment assembly and a breeding drainage assembly, a base plate is horizontally arranged on the inner side of the breeding frame, the breeding mechanism is placed on the surface of the base plate, and the breeding mechanism comprises a breeding box and a soft net bag. The top of the breeding box is open, and a soft net bag is laid on the inner side of the breeding box; a support is laid on the bottom wall of the breeding box, a breeding drainage assembly is installed on the bottom wall of the breeding box in a penetrating mode, and the breeding drainage assembly comprises a drainage pipe for breeding, an inclined pipe, a drainage opening, a sleeve and a side opening hole. The problems that in the prior art, the breeding density is low, and the unit water yield is low are solved; the method is greatly influenced by weather, water temperature, epidemic diseases and other environmental factors, and the breeding effect is not stable. The monopterus albus cannot be bred all year round due to climate limitation, the selling price is low due to concentrated marketing time, and the death rate of the monopterus albus during overwintering is high.

Description

Technical Field

[0001] The invention relates to the technical field of rice field eel breeding, in particular to a rice field eel factory circulating water breeding system. Background Art

[0002] The factory-scale recirculating water aquaculture system for eels is a system that recycles water resources in an indoor environment to breed eels. Eels have thick meat, few spines, and tender texture. They are deeply loved by consumers. The market is in short supply and the price remains high. At present, the main artificial breeding methods for eels are ecological breeding in natural waters or open-air cage breeding, which are relatively primitive.

[0003] Defects and shortcomings of the existing technology:

[0004] 1. The breeding density is low and the output per unit water volume is low.

[0005] 2. Affected by environmental factors such as weather, water temperature, and epidemic diseases, the breeding effect is unstable. Due to climate restrictions, breeding is not possible all year round, the concentrated time of listing leads to low selling prices, and the mortality rate of eels during winter is high.

[0006] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a factory-scale recirculating aquaculture system for rice field eels is proposed, in order to achieve a more practical purpose. Summary of the invention

[0007] The object of the present invention is to provide a factory-scale circulating water culture system for yellow eels to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a factory-scale circulating water culture system for yellow eel, comprising a culture rack, a culture mechanism, a water treatment component and a culture drainage component, wherein a pad is horizontally arranged on the inner side of the culture rack, and a culture mechanism is placed on the surface of the pad, and the culture mechanism comprises a culture box and a soft net bag, wherein the culture box is arranged in a top-opening shape, and a soft net bag is laid on the inner side of the culture box;

[0009] The bottom wall of the breeding box is paved with a bracket, and the bottom wall of the breeding box is penetrated and installed with a breeding drainage component, which includes a breeding drainage pipe, an inclined pipe, a drainage port, a sleeve and a side opening. The bottom of the breeding drainage pipe is extended with an inclined pipe, and the top of the breeding drainage pipe is provided with a drainage port. The outer side of the breeding drainage pipe is movably sleeved with a sleeve, and the outer side of the sleeve is evenly provided with side openings, and the soft net bag is arranged on the outer side of the sleeve;

[0010] A sedimentation tank is provided in the middle of the inner side of the breeding rack, and the sedimentation tank is connected with the breeding box through an inclined pipe, a drainage pipe for breeding;

[0011] A water supply assembly is installed on the outside of the breeding rack, and the water supply assembly includes a branch transverse pipe, a reflux pump pipe, a water inlet vertical pipe and an independent pipe valve. The water inlet end of the branch transverse pipe is connected to the reflux pump pipe, and the branch transverse pipe is provided with a water inlet vertical pipe toward the inner side of each group of breeding boxes, and an independent pipe valve is installed on the outside of the water inlet vertical pipe;

[0012] The water outlet of the sedimentation tank is connected to a water treatment component, which includes a microbial treatment box, a graded filter box, a water inlet pipe for filtration, an ultraviolet sterilization device, a drainage pipe for filtration and a water reservoir. The water inlet of the microbial treatment box is connected to the graded filter box, and the water inlet of the graded filter box is connected to the water inlet pipe for filtration. An ultraviolet sterilization device is installed on the inner side of the top of the graded filter box. The water outlet of the microbial treatment box is connected to the drainage pipe for filtration, and the water outlet of the drainage pipe for filtration is connected to the water reservoir;

[0013] A plant ecological purification breeding layer is arranged on the surface of the water reservoir, and the water reservoir and the reflux pump pipe are interconnected.

[0014] Furthermore, the sedimentation tanks are provided in multiple groups, and the multiple groups of sedimentation tanks are connected through the aquaculture drainage components and the aquaculture boxes.

[0015] Furthermore, the branch horizontal pipes, the reflux pump pipes and the multiple groups of water inlet vertical pipes are interconnected.

[0016] Furthermore, the filtration water inlet pipe, the microbial treatment box, and the graded filtration box are interconnected through the filtration drainage pipe and the water reservoir.

[0017] Furthermore, the graded filter box and the ultraviolet sterilization device are fixedly connected, and the ultraviolet light beam in the ultraviolet sterilization device is directed toward the interior of the graded filter box.

[0018] Furthermore, the bottom water inlet of the water inlet vertical pipe extends into the inner side of the soft net bag.

[0019] Furthermore, a sleeve structure connection is formed between the aquaculture drainage pipe and the sleeve, and the side openings are arranged in an up-and-down arrangement along the outer side of the sleeve.

[0020] Furthermore, a plurality of groups of filter materials of different filter stages are arranged inside the graded filter box.

[0021] The present invention provides a factory-scale circulating water culture system for yellow eels, which has the following beneficial effects:

[0022] 1. The present invention, through the circulating water aquaculture system, places the yellow eel in a breeding box for cultivation, and lays a bracket on the bottom wall of the breeding box, which can facilitate the sedimentation of the yellow eel's excrement, avoid turbidity of the internal breeding water, and make the breeding water meet the breeding water quality requirements of the yellow eel. In addition, with the soft net bag used for limiting the inner wall, in addition to facilitating the management and observation of the growth state, health status and behavioral habits, it can also improve the feed utilization rate, ensure that the feed is more concentratedly supplied to the yellow eel, and reduce the waste and pollution of the feed; in addition, it can also help to isolate and reduce the direct contact between the yellow eel and the bottom of the breeding box or other objects, thereby reducing the chance of disease and parasite transmission, and facilitate fishing and transportation. Under the condition of controlling the breeding space, the high-density breeding of yellow eels can be achieved inside the breeding box, so that each square meter of water produces more than ten kilograms of commercial yellow eels, ensuring the breeding efficiency and survival rate of the breeding system, thereby increasing the economic benefits of the breeder;

[0023] 2. The present invention uses a water supply component and a water treatment component as a circulation component for aquaculture water. The aquaculture water is transferred to a sedimentation tank for sedimentation treatment, and then concentratedly extracted into a water treatment component, and physically filtered by a graded filter box. During the physical filtration treatment, an ultraviolet disinfection device is simultaneously used for ultraviolet disinfection. After that, the filtered circulating water will enter a microbial treatment box, and by using a microbial filler rack in the microbial treatment box, sewage and microorganisms are introduced into the treatment box. The microorganisms attach and multiply on the filler, and then decompose and transform the organic matter in the sewage, thereby realizing multi-stage treatment of the circulating water. After that, the treated circulating water is concentratedly collected in a reservoir, and the plant ecological purification breeding layer arranged inside the reservoir is used to absorb organic matter in the water, such as nutrients such as ammonia nitrogen, through the root system, and transform them into the plant's own nutrients, thereby reducing the organic matter content in the water. The microbial film formed around the root system can degrade organic matter and further purify the water quality. The entire breeding system is a factory-based indoor breeding system, which can avoid the influence of climate, weather and other environmental factors. The breeding benefits are stable, and artificial temperature control can be used to achieve year-round breeding. The structure control logic is simple, and the equipment reliability and stability are high.

[0024] 3. A drainage pipe for breeding is arranged inside the breeding box of the present invention. The water level inside is controlled horizontally by the top opening of the drainage pipe for breeding, so as to more accurately control the breeding water level. In addition, a sleeve is arranged outside the drainage pipe for breeding, and side openings are arranged on the outer wall of the sleeve. The sleeve is used to wrap the water inlet of the drainage pipe for breeding, so that water higher than the drainage outlet flows in from the side openings on the outside, thereby stabilizing the internal water flow of the breeding box and avoiding the influence of a large flow rate on the internal eel breeding environment.

[0025] The bottom of the internal water inlet vertical pipe of the breeding box reaches deep into the bottom wall of the soft net bag, and water is supplied from the bottom, which reduces the impact of water supply on the water flow and thus avoids disturbing the eels. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only used to illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. In the drawings:

[0027] Figure 1 It is a front view structural schematic diagram of a factory-scale circulating water culture system for yellow eel of the present invention;

[0028] Figure 2 It is a side structural schematic diagram of a factory-scale circulating water culture system for yellow eel of the present invention;

[0029] Figure 3 It is a schematic diagram of the side structure of a sedimentation tank of a rice field eel factory circulating water aquaculture system of the present invention;

[0030] Figure 4 The present invention is a schematic diagram of the internal structure of a breeding mechanism of a rice field eel factory circulating water breeding system.

[0031] In the figure: 1. breeding rack; 101. pad; 2. sedimentation tank; 3. breeding mechanism; 301. breeding box; 302. soft net bag; 4. water supply component; 401. branch horizontal pipe; 402. reflux pump pipe; 403. water inlet vertical pipe; 404. independent pipe valve; 5. water treatment component; 501. microbial treatment box; 502. graded filter box; 503. water inlet pipe for filtration; 504. ultraviolet disinfection device; 505. drainage pipe for filtration; 506. reservoir; 6. plant ecological purification breeding layer; 7. breeding drainage component; 701. drainage pipe for breeding; 702. inclined pipe; 703. drain outlet; 704. casing; 705. side opening; 8. bracket; 9. protective plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-4The present invention provides a technical solution: a factory-scale circulating water culture system for yellow eel, comprising a culture rack 1, a culture mechanism 3, a water treatment component 5 and a culture drainage component 7, a pad 101 is horizontally arranged on the inner side of the culture rack 1, and the culture mechanism 3 is placed on the surface of the pad 101, the culture mechanism 3 comprises a culture box 301 and a soft net bag 302, the culture box 301 is arranged in a top-opening shape, and the inner side of the culture box 301 is paved with a soft net bag 302;

[0034] The bottom wall of the breeding box 301 is paved with a bracket 8, and the bottom wall of the breeding box 301 is penetrated by a breeding drainage assembly 7, which includes a breeding drainage pipe 701, an inclined pipe 702, a drainage port 703, a sleeve 704 and a side opening 705. The bottom of the breeding drainage pipe 701 is extended with an inclined pipe 702, and the top of the breeding drainage pipe 701 is provided with a drainage port 703. The outer side of the breeding drainage pipe 701 is movably sleeved with a sleeve 704, and the outer side of the sleeve 704 is evenly provided with side openings 705. The soft net bag 302 is arranged on the outer side of the sleeve 704.

[0035] A sedimentation tank 2 is provided in the middle of the inner side of the breeding rack 1, and the sedimentation tank 2 is connected to the breeding box 301 through an inclined pipe 702 and a drainage pipe 701 for breeding;

[0036] A water supply assembly 4 is installed on the outside of the breeding rack 1, and the water supply assembly 4 includes a branch transverse pipe 401, a reflux pump pipe 402, a water inlet vertical pipe 403 and an independent pipe valve 404. The water inlet end of the branch transverse pipe 401 is connected to the reflux pump pipe 402, and the branch transverse pipe 401 is provided with a water inlet vertical pipe 403 toward the inner side of each group of breeding boxes 301, and an independent pipe valve 404 is installed on the outside of the water inlet vertical pipe 403;

[0037] The water outlet of the sedimentation tank 2 is connected to a water treatment component 5, which includes a microbial treatment box 501, a graded filter box 502, a water inlet pipe 503 for filtration, an ultraviolet sterilization device 504, a drainage pipe 505 for filtration and a water reservoir 506. The water inlet of the microbial treatment box 501 is connected to the graded filter box 502, and the water inlet of the graded filter box 502 is connected to the water inlet pipe 503 for filtration. The ultraviolet sterilization device 504 is installed on the inner side of the top of the graded filter box 502. The water outlet of the microbial treatment box 501 is connected to the drainage pipe 505 for filtration, and the water outlet of the drainage pipe 505 for filtration is connected to the water reservoir 506.

[0038] The surface of the water reservoir 506 is provided with a plant ecological purification breeding layer 6, and the water reservoir 506 and the return pump pipe 402 are interconnected; there are multiple groups of sedimentation tanks 2, and the multiple groups of sedimentation tanks 2 are connected to the breeding box 301 through the breeding drainage assembly 7; the branch horizontal pipe 401, the return pump pipe 402 and the multiple groups of water inlet vertical pipes 403 are interconnected; the filtration water inlet pipe 503, the microbial treatment box 501, the graded filtration box 502 are connected to the water reservoir 506 through the filtration drainage pipe 505 The graded filter box 502 and the ultraviolet sterilizer 504 are fixedly connected, and the ultraviolet light beam in the ultraviolet sterilizer 504 is directed toward the inside of the graded filter box 502; the bottom water inlet of the water inlet vertical pipe 403 is inserted into the inner side of the soft net bag 302; the drainage pipe 701 for breeding and the sleeve 704 are connected by a sleeve structure, and the side openings 705 are arranged in an up-and-down manner along the outer side of the sleeve 704; multiple groups of filter materials with different filter ladders are arranged inside the graded filter box 502;

[0039] Through the circulating water aquaculture system, the eel is placed in the aquaculture box 301 for cultivation, and a bracket 8 is laid on the bottom wall of the aquaculture box 301, which can facilitate the sedimentation of the eel's excrement, avoid turbidity of the internal aquaculture water, and make the aquaculture water meet the aquaculture water quality requirements of the eel. In addition, with the soft net bag 302 used for limiting the inner wall, in addition to facilitating the management and observation of the growth status, health status and behavioral habits, it can also improve the feed utilization rate, ensure that the feed is more concentratedly supplied to the eel, and reduce the waste and pollution of the feed; in addition, it can also help to isolate and reduce the direct contact between the eel and the bottom of the aquaculture box or other objects, thereby reducing the chance of disease and parasite transmission, and facilitate fishing and transportation. Under the condition of controlling the aquaculture space, high-density aquaculture of eels can be achieved inside the aquaculture box 301, so that more than ten kilograms of commercial eels are produced per square meter of water, ensuring the aquaculture efficiency and survival rate of the aquaculture system, thereby increasing the economic benefits of the breeder;

[0040] The water supply component 4 and the water treatment component 5 are used as circulation components for aquaculture water. The aquaculture water is transferred to the sedimentation tank 2 for sedimentation treatment, and then concentratedly extracted into the water treatment component 5, and physically filtered by the graded filter box 502. During the physical filtration treatment, the ultraviolet disinfection device 504 is used for ultraviolet disinfection. After that, the filtered circulating water will enter the microbial treatment box 501, and the microbial filler rack in the microbial treatment box 501 is used to introduce sewage and microorganisms into the treatment box. The microorganisms attach and multiply on the filler, and then decompose and transform the organic matter in the sewage, thereby realizing multi-stage treatment of the circulating water. After that, the treated circulating water is concentratedly collected in the reservoir 506, and the plant ecological purification aquaculture layer 6 arranged inside the reservoir 506 is used to absorb organic matter in the water, such as nutrients such as ammonia nitrogen, through the root system, and transform them into the plant's own nutrients, thereby reducing the organic matter content in the water. The microbial film formed around the root system can degrade organic matter and further purify the water quality. The entire breeding system is a factory-based indoor breeding system, which can avoid the influence of climate, weather and other environmental factors. The breeding benefits are stable, and artificial temperature control can be used to achieve year-round breeding. The structure control logic is simple, and the equipment reliability and stability are high.

[0041] A drainage pipe 701 for breeding is arranged inside the breeding box 301. The water level inside is controlled horizontally by the top opening of the drainage pipe 701, so as to more accurately control the breeding water level. In addition, a sleeve 704 is sleeved outside the drainage pipe 701 for breeding, and side openings 705 are arranged on the outer wall of the sleeve 704. The sleeve 704 wraps the water inlet of the drainage pipe 701 for breeding, so that water higher than the drainage port 703 flows in from the side openings 705 on the outside, thereby stabilizing the internal water flow of the breeding box 301 and preventing the high flow rate from affecting the internal eel breeding environment.

[0042] The bottom of the internal water inlet vertical pipe 403 of the breeding box 301 penetrates into the bottom wall of the soft net bag 302, and water is supplied from the bottom position, which reduces the impact on the water flow during water supply, thereby avoiding disturbing the eels.

[0043] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be thought of by a technician familiar with the field within the technical scope disclosed by the present invention without creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A factory-scale circulating water culture system for yellow eel, comprising a culture rack (1), a culture mechanism (3), a water treatment component (5) and a culture drainage component (7), characterized in that: A pad (101) is horizontally arranged on the inner side of the breeding rack (1), and a breeding mechanism (3) is placed on the surface of the pad (101), wherein the breeding mechanism (3) comprises a breeding box (301) and a soft net bag (302), wherein the breeding box (301) is arranged with an open top, and a soft net bag (302) is laid on the inner side of the breeding box (301); The bottom wall of the aquaculture box (301) is paved with a bracket (8), and the bottom wall of the aquaculture box (301) is penetrated by an aquaculture drainage assembly (7), the aquaculture drainage assembly (7) comprising an aquaculture drainage pipe (701), an inclined pipe (702), a drainage port (703), a sleeve (704) and a side opening (705); the bottom of the aquaculture drainage pipe (701) is extended with an inclined pipe (702), the top of the aquaculture drainage pipe (701) is provided with a drainage port (703), the outer side of the aquaculture drainage pipe (701) is movably sleeved with a sleeve (704), and the outer side of the sleeve (704) is evenly provided with side openings (705), and the soft net bag (302) is arranged on the outer side of the sleeve (704); A sedimentation tank (2) is provided in the middle of the inner side of the breeding rack (1), and the sedimentation tank (2) is connected to the breeding box (301) through an inclined pipe (702), a drainage pipe for breeding (701); A water supply assembly (4) is installed on the outside of the breeding rack (1), and the water supply assembly (4) comprises a branch transverse pipe (401), a reflux pump pipe (402), a water inlet vertical pipe (403) and an independent pipe valve (404); the water inlet end of the branch transverse pipe (401) is connected to the reflux pump pipe (402); the branch transverse pipe (401) is provided with a water inlet vertical pipe (403) in the direction of the inner side of each group of breeding boxes (301); and the outer side of the water inlet vertical pipe (403) is installed with an independent pipe valve (404); The water outlet of the sedimentation tank (2) is connected to a water treatment component (5), the water treatment component (5) comprising a microbial treatment box (501), a graded filter box (502), a water inlet pipe for filtration (503), an ultraviolet sterilization device (504), a water drain pipe for filtration (505) and a water reservoir (506); the water inlet of the microbial treatment box (501) is connected to the graded filter box (502), and the water inlet of the graded filter box (502) is connected to the water inlet pipe for filtration (503); the ultraviolet sterilization device (504) is installed on the inner side of the top of the graded filter box (502); the water outlet of the microbial treatment box (501) is connected to the water drain pipe for filtration (505), and the water outlet of the water drain pipe for filtration (505) is connected to the water reservoir (506); A plant ecological purification breeding layer (6) is provided on the surface of the water reservoir (506), and the water reservoir (506) and the reflux pump pipe (402) are interconnected.

2. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: The sedimentation tanks (2) are provided in multiple groups, and the multiple groups of sedimentation tanks (2) are connected through the aquaculture drainage components (7) and the aquaculture boxes (301).

3. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: The branch horizontal pipe (401), the reflux pump pipe (402) and the plurality of groups of water inlet vertical pipes (403) are interconnected.

4. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: The filtration water inlet pipe (503), the microbial treatment box (501), and the graded filtration box (502) are interconnected via a filtration drainage pipe (505) and a water reservoir (506).

5. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: The graded filter box (502) and the ultraviolet sterilization device (504) are fixedly connected, and the ultraviolet light beam in the ultraviolet sterilization device (504) is directed toward the interior of the graded filter box (502).

6. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: The bottom water inlet of the water inlet vertical pipe (403) protrudes into the inner side of the soft net bag (302).

7. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: A sleeve structure connection is formed between the aquaculture drainage pipe (701) and the sleeve (704), and the side openings (705) are arranged in an up-and-down arrangement along the outer side of the sleeve (704).

8. The industrialized circulating water culture system for rice field eels according to claim 1, characterized in that: A plurality of groups of filter materials of different filter stages are arranged inside the graded filter box (502).

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