CN113632757A

CN113632757A - Aquatic animal breeding environmental protection system

Info

Publication number: CN113632757A
Application number: CN202010422362.5A
Authority: CN
Inventors: 范增源
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-11-12

Abstract

The invention discloses an aquatic animal breeding environment-friendly system, which comprises a breeding water body, and a high-level water storage tank, a breeding hopper, a sewage collecting tank, a sewage suction pump, a feces storage tank and a feces discharge pump which are arranged in the breeding water body, wherein the high-level water storage tank, the breeding hopper, the sewage collecting tank, the feces storage tank and the feces discharge pump are arranged on the water surface in a suspending manner through floating cylinders, the sewage suction pump is usually arranged on the water surface in the sewage collecting tank in a suspending manner through a floating plate, and the high-level water storage tank and the breeding hopper are communicated through a pressure water pushing pipe; the breeding hopper and the sewage collecting groove are communicated through a sewage discharge pipe; the sewage suction pump and the excrement storage tank are communicated through an excrement inlet pipe; the excrement storage box and the excrement discharge pump are communicated through an excrement discharge pipe. The invention can better separate the excrement such as the excrement discharged by the cultured aquatic animals and the feed residue out of the culture water body, reduce the pollution of the excrement to the water body and the aquatic animals during culture, reduce the diseases of the aquatic animals and the drug consumption to the aquatic animals, and effectively protect the environment from being polluted during the culture of the aquatic animals.

Description

Aquatic animal breeding environmental protection system

Technical Field

The invention relates to the technical field of aquatic animal breeding, in particular to an aquatic animal breeding environment-friendly system.

Background

At present, in a traditional aquaculture mode, excrement such as excrement and urine excreted by aquatic animals and feed residue stays in a water body and is not separated, the excrement seriously pollutes the aquaculture water body and the cultured aquatic animals, a layer of thick excrement is accumulated at the bottom of the water body in long-term aquaculture, and permeates into underground water under the dissolution of water and the pressure, so that the underground water and surface water are seriously polluted, the cultured aquatic animals are frequently suffered from diseases, and the drug administration for the aquaculture water body and the aquatic animals is increased to cause greater pollution. Therefore, in China, cage culture and feeding culture are prohibited comprehensively in rivers, lakes, reservoirs, tourist areas, drinking water source protection areas and other water areas. However, no technology is available for completely solving the problem of aquatic animal culture pollution at present, and the problem of aquatic animal culture and culture pollution in fishponds is not forbidden at present in order to meet the requirements of aquatic products necessary for human life.

In order to solve the problems of environmental pollution and aquatic animal pollution in the aquatic animal culture process of China, the technology of circulating water tank culture in ponds, invented in the 60 th generation of American Austrian university, has been gradually introduced in China. The main mode is that a water tank with the width of about 5 meters and the length of about 25 meters is built in a culture pond for culture, water in the water tank flows through a water pushing device, excrement in the culture water tank is flushed to a sedimentation ditch behind the water tank for sedimentation, and then the excrement in the sedimentation ditch is sucked out of the pond through a sewage suction machine so as to reduce the pollution of the excrement to a water body. However, the water tank cultivation still has more disadvantages, such as: in order to flush and discharge the excrement in the water tank, a large water flow and a high flow rate need to be kept in the full water tank, so that the excessive movement of aquatic animals causes high feed consumption and high power consumption, the excrement is difficult to precipitate, the collection rate is low and is generally between 20 and 30 percent, and the pollution to the aquaculture water body is still large.

Disclosure of Invention

The invention aims to provide an aquatic animal breeding environment-friendly system, which aims to solve the problems that in the prior art, excrement discharged by aquatic animals and feed residues stay in a breeding water body to cause water body pollution, the aquatic animals live in the excrement and cause more diseases, so that more medicines are used to further pollute the water body and the aquatic animals, and the environment pollution such as surface water, underground water and the like is seriously polluted.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an aquatic animal breeds environmental protection system, includes the aquaculture water body and sets up high-order tank, breed fill, collection dirt groove, soil pick-up pump, storage excrement case and the defecation pump in the aquaculture water body, its characterized in that: the high-level water storage tank, the culture bucket, the sewage collecting tank, the excrement storage tank and the excrement discharging pump are arranged on the water surface in a suspending way through the floating barrels, and when the high-level water storage tank, the sewage collecting tank, the excrement storage tank and the excrement discharging pump are used in culture water body environments such as a fishpond with small water level change, the high-level water storage tank, the culture bucket, the sewage collecting tank, the excrement storage tank and the excrement discharging pump can also be fixedly suspended on the water surface through the bracket; the sewage suction pump is usually arranged on the water surface in the sewage collection tank in a floating mode through a floating plate, and can also be arranged outside the sewage collection tank, but a sewage suction head of the sewage suction pump is sunk into the bottom of the sewage collection tank; the high-level water storage tank and the culture bucket are communicated through a pressure water pushing pipe; the breeding hopper and the sewage collecting groove are communicated through a sewage discharge pipe; the sewage suction pump and the excrement storage tank are communicated through an excrement inlet pipe; the excrement storage box and the excrement discharge pump are communicated through an excrement discharge pipe.

Preferably, the high-level water storage tank can be a water tank in any shape, the high-level water storage tank can be arranged in the pond in a suspending mode, a pond, a river, a lake, a pool and a ditch with the water surface higher than the culture water surface can be used, water in the high-level water storage tank can naturally flow in through a water conduit, and the water can also be pumped in through an electric water pump and a wind power water pump.

Preferably, breed and fight for the shape that circular, square fillet, polygon etc. are favorable to rivers to fighting the internal rotation in breeding, breed and fight the bottom and be the back taper of peripheral high centre low, bottom central authorities are equipped with the blowoff hole, the top of fighting of breeding is equipped with prevents escaping the net, the well upper portion of fighting of breeding is equipped with pressure and pushes away the water pipe, pressure pushes away the water pipe and can be 1 or many, nevertheless all sets up in same one side on every limit, the water of the higher high-order cistern of water level pushes away the water pipe through pressure and flows into to be favorable to breeding when fighting to breed and form the whirl, the well upper portion of fighting of breeding is equipped with oxygenation and pushes away the water pipe, sets up in the oxygenation pushes away the water pipe and pushes away water pump and oxygenation pipe, and the oxygenation pushes away the water pipe afterbody and sets up curved shape usually to oxygenation pushes away the pipe installation and pushes away the pipe on one side of water pump and rotate as the axle center and push away the water pipe, can select oxygenation to push away the water level of water pipe in breeding the water body. The bottom of the cultivation bucket is provided with a bottom oxygenation pipe, so that dissolved oxygen of the cultivation water body is further increased. Multiple farming buckets are typically provided in a system.

Preferably, the cultivation hopper can be constructed by using an inner framework on the inner layer, a waterproof soft cloth on the middle layer and a bearing net on the outer layer, so that the construction cost is reduced, the industrial production and transportation are facilitated, and a single-layer or multi-layer hard material structure can also be used.

Preferably, the sewage collecting groove is usually in a strip shape, and can also be a circular sewage sedimentation and collection device, the sewage collecting groove is connected with a sewage discharge hole at the bottom of the culture bucket through a sewage discharge pipe, when the sewage collecting groove is in the strip shape, the section of the sewage collecting groove is generally in an inverted trapezoid shape with a wide upper part and a narrow lower part, but not only the inverted trapezoid shape, and the bottom of the sewage collecting groove is usually flat, so that a sewage suction head can move on the sewage collecting groove to suck sewage; an overflow port is arranged at the position above the tail part of the sewage collecting tank and close to the water surface.

Preferably, the aquaculture water body provides aquaculture water for aquatic animals and further purifies the water overflowing from the overflow gap, so that the aquaculture water can be reused; the aquaculture water body can be water bodies in ponds, rivers, lakes, ponds and ditches.

Preferably, the sewage suction pump can be suspended on the water surface in the sewage collection tank through a floating plate, the sewage suction pump is connected with a traction rope, the traction rope is connected with a tractor, when the tractor drives the traction rope to reciprocate, the sewage suction pump and the sewage suction head of the sewage suction pump reciprocate, the sewage suction head moves at the bottom of the sewage collection tank to suck sewage out of the sewage collection tank, and the sewage suction pump can be connected with 1 or more sewage suction heads; the sewage suction pump can also be arranged outside the sewage collection tank and is connected with the sewage suction head in the sewage collection tank through a hose, and only the sewage suction head is moved to suck sewage.

Preferably, the manure storage box can be a hollow box body in any shape or a bag made of soft materials, and can be arranged in a water body or placed outside the water body; when the manure storage box is arranged outside the water body, the manure storage box can be arranged into a manure storage tank; the excrement storage box is provided with an excrement inlet pipe connected with the sewage suction pump, and the top of the excrement storage box is provided with an exhaust hole; the excrement pumped by the sewage suction pump is conveyed into the excrement storage box through the excrement inlet pipe and stored.

The excrement discharging pump is connected with the excrement storage box through an excrement discharging pipe, and when more excrement is stored in the excrement storage box or the stored excrement needs to be utilized, the excrement discharging pump pumps the excrement in the excrement storage box out of a water body through the excrement discharging pipe; the excrement discharging pump can be provided with a water mixing pipe, when excrement is pumped from the excrement storage box, water can be pumped from a water body through the water mixing pipe for mixing, and crops can be directly irrigated after the concentration of the excrement is diluted; the excrement discharging pump is generally arranged near the excrement storage tank, can be suspended on the water surface and can also be arranged outside the water body.

Compared with the prior art, the invention has the beneficial effects that:

1. the floating pontoon is suspended on the water surface, the suspended arrangement can adapt to the aquaculture water bodies with larger water level changes such as reservoirs, rivers, lakes and the like, and when the floating pontoon is used in the aquaculture water bodies with smaller water level changes, the floating pontoon can be fixedly suspended on the water surface through the bracket so as to reduce the construction cost.

2. The high-level water storage tank can use unstable energy sources such as natural running water, a wind energy water pump, a light energy water pump and the like, and the energy-saving effect is obvious. Water in the high-order reservoir pushes away the water pipe through pressure and flows into breeding and fight, and the water that promotes to breed in fighting rotates and forms the whirl, and the excrement and sewage after being utilized by aquatic animal concentrates on breeding and fight bottom central authorities under the effect of whirl, through breeding the blowdown hole of fighting bottom central authorities and the blow off pipe of being connected with it collect and flow into the groove of collecting dirt, and the excrement and sewage in fighting can all be collected and input into the groove of collecting dirt. The breeding hopper adopts rotating water flow and water changing from top to bottom to collect the feces, the used water flow is small, the power required during operation is less, the energy consumption is low, and the water consumption is less. The dirt collecting groove is long, the water flow in the dirt collecting groove is slow, and the dirt particles heavier than water can realize a very high precipitation effect, so that most of the dirt can be separated from the water body. The sewage suction pump pumps out the excrement at the bottom in the sewage collection tank through the sewage suction head, and the excrement is conveyed to the excrement storage box through the excrement inlet pipe to be stored, so that the cultured excrement can be collected on site and recycled. The excrement pump pumps out excrement stored in the excrement storage tank through the excrement discharge pipe, and the excrement is mixed with the aquaculture water pumped through the water mixing pipe and then discharged through the irrigation pipe, so that crops can be directly irrigated.

3. The invention can better separate the excrement and the like discharged by the cultured aquatic animals from the culture water body, reduce the pollution to the water body and the aquatic animals during culture, reduce the diseases of the aquatic animals and reduce the culture drugs, effectively protect the environment from being polluted by the aquatic animals during culture, increase the culture density and the yield, improve the quality of the cultured aquatic animals, reduce the operation cost of the aquatic animals during culture and have low facility construction cost.

Drawings

FIG. 1 is a top view of the structure of the present invention;

FIG. 2 is a side view of the hopper of the present invention;

FIG. 3 is a schematic view showing the connection of the high-level water storage tank, the cultivation hopper, the sewage collecting tank and the manure storage tank.

In the figure: 1. an electric water pump; 2. a wind power water pump; 3. a high-level water storage tank; 4. a water conduit; 5. pushing the water pipe by pressure; 6. a support; 7. a sewage draining hole; 8. a cultivation hopper; 9. a float bowl; 10. an oxygenation pipe; 11. an oxygenation water pushing pipe; 12. pushing a water pump; 13. a blow-off pipe; 14. a tractor; 15. a sewage collecting tank; 16. a sewage suction head 17 and a sewage suction pump; 18. a floating plate; 19. a hauling rope; 20. culturing a water body; 21. an overflow port; 22. a manure inlet pipe; 23. an exhaust hole; 24. a manure storage box; 25. a manure discharge pipe; 26. a manure discharge pump; 27. an irrigation pipe; 28. a water mixing pipe; 29. an escape-proof net; 30. a bottom oxygenation pipe; 31. an inner skeleton; 32. soft cloth; 33. a load-bearing web.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides an aquatic animal breeding environmental protection system, which includes a aquaculture water body 20, and a high-level water storage tank 3, a breeding hopper 8, a sewage collecting tank 15, a sewage suction pump 17, a feces storage tank 24 and a feces discharge pump 26 which are disposed in the aquaculture water body 20, wherein the high-level water storage tank 3, the breeding hopper 8, the sewage collecting tank 15, the feces storage tank 24 and the feces discharge pump 26 are suspended on the water surface through a buoy 9, and when the aquatic animal breeding environmental protection system is used in an aquaculture water body environment with a small water level change, they may also be suspended on the water surface through a bracket 6.

The high-level water storage tank 3 is introduced into natural running water such as rivers through a water conduit 4, the cultivation water is pumped into the cultivation water body 20 through the electric power water pump 1 or the wind power water pump 2, and the cultivation water is provided for the cultivation bucket 8 through the connection of the pressure water pushing pipe 5 and the cultivation bucket 8. The high-level water storage tank 3 can provide a buffer effect for water so as to use unstable energy sources such as wind energy, solar energy and the like.

The shape of the breeding hopper 8 is not limited, preferably, the breeding hopper 8 is round, square round angle, polygon or other shapes which are beneficial to the water flow to rotate in the breeding hopper, the bottom of the breeding hopper 8 is in an inverted cone shape with high periphery and low middle, a sewage discharge hole 7 is arranged in the center of the bottom, a pressure water pushing pipe 5 connected with the high-level water storage tank 3 is arranged on the side surface of the middle upper part of the breeding hopper 8, because the water level in the high-level water storage tank 3 is higher than the water level in the culture bucket 8, the water with pressure generated by the water level difference continuously flushes into the culture bucket 8 from the pressure water pushing pipe 5, the pressure water pushing pipe 5 is arranged at the position close to the edge of the breeding hopper 8, when water enters the breeding hopper 8, the water in the breeding hopper 8 forms a rotational flow, excrement and sewage of aquatic animals bred in the breeding hopper 8, feed residual and the like are concentrated to the center of the bottom of the breeding hopper 8 under the action of the rotational flow, and the excrement and sewage is discharged through a sewage discharge hole 7 in the center of the bottom of the breeding hopper 8 and collected. When no natural running water exists or the water is not suitable for energy-saving power pumping of wind power, photoelectricity and the like, the high-level water storage tank 3 and the pressure water pushing pipe 5 are not arranged normally, the oxygen increasing water pushing pipe 11 and the water pushing pump 12 are only arranged at the position close to the side of the middle upper portion of the culture bucket 8, water in the culture water body 20 is directly pushed into the culture bucket 8 through the water pushing pipe under the action of the water pushing pump 12, and therefore rotational flow is formed in the culture bucket 8. The pressure water pushing pipe 5 and the oxygen increasing water pushing pipe 11 are usually arranged in only one type, but each type can be arranged in 1 or more types at the same time, but are arranged on the same side of each side, so that the water flow in the culture bucket 8 can be pushed to rotate. When the water pushing pump 12 operates, water outside the cultivation bucket 8 is pushed into the cultivation bucket 8, water flow is rotated, and air is mixed into the water flow through the oxygenation pipe 10 to oxygenate; the tail of the oxygenation water pushing pipe 11 is usually set to be in a bent shape but not limited to be in the bent shape, the oxygenation water pushing pipe is rotated by taking a pipe on one side of the oxygenation water pushing pipe, which is provided with a water pushing pump, as an axis, and the water taking level of the oxygenation water pushing pipe in the aquaculture water body can be selected. When water is pumped without natural running water or energy-saving power unsuitable for wind power, photoelectricity and the like, only the oxygen-increasing water pushing pipe 11 and the water pushing pump 12 are usually arranged, and the pressure water pushing pipe 5, the previous high-level water storage tank 3 and the like are not arranged. The top of the breeding hopper 8 is provided with an escape-proof net 29 for preventing aquatic animals from escaping. The bottom of the cultivation hopper 8 is provided with a bottom oxygenation pipe 30 to further increase the dissolved oxygen of the cultivation water body. The breeding hopper 8 can be constructed by using an inner framework 31 as an inner layer, waterproof soft cloth 32 as an intermediate layer and a bearing net 33 as an outer layer, so that the construction cost is reduced, the industrial production and transportation are facilitated, and a single-layer or multi-layer hard material structure, such as glass fiber or plastic material, can also be used.

The sewage collecting groove 15 is connected with the sewage discharging hole 7 at the bottom of the breeding hopper 8 through a sewage discharging pipe 13, and the sewage collecting groove 15 is usually in a longer strip groove shape and can also be a circular or other-shaped sewage settling device. When the sewage collecting tank 15 is a strip-shaped tank, the cross section of the sewage collecting tank 15 is generally in an inverted trapezoid shape with a wide upper part and a narrow lower part, but the cross section is not limited to the inverted trapezoid shape, so that sewage suction is facilitated, and the bottom of the sewage collecting tank 15 is relatively flat, so that the sewage suction head 16 can move on the sewage collecting tank for sewage suction; an overflow gap 21 is arranged at the position above the tail part of the sewage collecting groove 15 and close to the water surface, and water which is precipitated in the sewage collecting groove 15 overflows through the overflow gap 21 so as to reduce the flow velocity of water flow at the bottom of the sewage collecting groove 15 and enhance the precipitation effect.

The culture water body 20 provides culture water for the aquatic animals and further purifies the water overflowing from the overflow ports 21 so that the culture water can be reused. The aquaculture water 20 may be water in ponds, rivers, lakes, poises, ditches.

The sewage suction pump 17 can be suspended on the water surface in the sewage collection tank 15 through the floating plate 18, the sewage suction head 16 connected with the sewage suction pump 17 is close to the bottom of the sewage collection tank 15, when the tractor 14 drives the traction rope 19 to do reciprocating motion, the sewage suction pump 17 connected with the traction rope 19 and the sewage suction head 16 are made to do reciprocating motion, and the sewage suction head 16 sucks dirt out of the sewage collection tank 15 when the bottom of the sewage collection tank 15 moves. The soil pick-up pump 17 may be connected to 1 or more of the soil pick-up heads 16. The dirt suction pump 17 can also be arranged outside the dirt collection groove 15 and connected with the dirt suction head 16 through a hose, and only the dirt suction head 16 at the bottom of the dirt collection groove 15 is moved to suck dirt.

The manure storage tank 24 is connected to the soil pick-up pump 17 via the manure inlet pipe 22 and to the manure discharge pump 26 via the manure discharge pipe 25, and the manure sucked out of the sewage collection tank 15 by the soil pick-up pump 17 enters the manure storage tank 24 via the manure inlet pipe 22, is stored and is fermented in the manure storage tank 24, so that it can be directly used in the future. The top of the manure storage box 24 is provided with an exhaust hole 23 for exhausting gas during manure feeding and fermentation of manure in the manure storage box 24.

The excrement discharging pump 26 is connected with the excrement storage box 24 through an excrement discharging pipe 25, and the excrement discharging pump 26 is provided with a water mixing pipe 28 and an irrigation pipe 27; when the manure in the manure storage box 24 is more or needs to be utilized, the manure pump 26 pumps out the manure in the manure storage box 24 through the manure discharge pipe 25, and simultaneously pumps water from the aquaculture water body 20 through the water mixing pipe 28 to mix with the manure, so that the manure can be directly irrigated to the farmer for action after the concentration of the manure is diluted.

The operation path of the environmental protection system has three types:

under the environment with natural running water, the water flows according to the path of 'natural running water → the water conduit 4 → the high-level water storage tank 3 → the pressure water pushing pipe 5 → the culture hopper 8 → the sewage discharge pipe 13 → the sewage collecting tank 15 → the culture water body 20';

in an environment without natural running water, the water flows circularly according to a path of the aquaculture water body 20 → the high-level water storage tank 3 → the pressure water push pipe 5 → the aquaculture hopper 8 → the sewage discharge pipe 13 → the sewage collection tank 15 → the aquaculture water body 20, or according to a path of the aquaculture water body 20 → the oxygen-increasing water push pipe 11 → the aquaculture hopper 8 → the sewage collection tank 15 → the aquaculture water body 20.

The manure and sewage separation paths of the above various operation modes are as follows: "the cultivation hopper 8 → the sewage discharge pipe 13 → the sewage collection tank 15 → the sewage suction pump 17 → the manure inlet pipe 22 → the manure storage tank 24 → the manure discharge pipe 25 → the manure discharge pump 26 → the irrigation pipe 27" up to the outside of the cultivation water body 20.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an aquatic animal breeds environmental protection system, includes aquaculture water body (20) and sets up high-order tank (3), breed fill (8), collection dirt groove (15), soil pick-up pump (17), storage excrement case (24) and row's excrement pump (26) in aquaculture water body (20), its characterized in that: the high-level water storage tank (3), the culture bucket (8), the sewage collecting tank (15), the excrement storage tank (24) and the excrement discharging pump (26) are arranged on the water surface in a suspending mode through the floating barrel (9), and when the high-level water storage tank is used in a culture water body with small water level change, the high-level water storage tank and the culture bucket can also be fixedly suspended on the water surface through the support (6); the sewage suction pump (17) is usually arranged on the water surface in the sewage collection tank (15) in a suspending way by using a floating plate (18), and can also be arranged outside the sewage collection tank (15), but a sewage suction head (16) of the sewage suction pump (17) sinks into the bottom in the sewage collection tank (15); the high-level water storage tank (3) and the culture bucket (8) are communicated through a pressure water pushing pipe (5); the breeding hopper (8) and the sewage collecting groove (15) are communicated through a sewage discharge pipe (13); the sewage suction pump (17) and the excrement storage tank (24) are communicated through an excrement inlet pipe (22); the manure storage box (24) and the manure discharge pump (26) are communicated through a manure discharge pipe (25).

2. An environmental protection system for aquatic animal farming according to claim 1, wherein: the high-level water storage tank (3) can be a water tank in any shape, can be suspended in a culture water body, can also be used as a pool, a pond, a river, a ditch, a lake or a pool with the water surface higher than the culture water surface, and water in the high-level water storage tank can naturally flow in through a water guide pipe (4) or can be pumped in through an electric water pump (1) and a wind power water pump (2).

3. An environmental protection system for aquatic animal farming according to claim 1, wherein: the cultivation bucket (8) is round, square round or polygonal, the shape of the rotation of water flow in the cultivation bucket (8) is facilitated, the bottom of the cultivation bucket (8) is in an inverted cone shape with high periphery and low middle part, a sewage discharge hole (7) is formed in the center of the bottom, an anti-escape net (29) is arranged at the top of the cultivation bucket (8), a pressure water pushing pipe (5) is arranged at the middle upper part of the cultivation bucket (8), the pressure water pushing pipes (5) can be 1 or more, but are arranged at the same side of each side, water in a high-position water storage pool (3) with higher water level is facilitated to form a rotational flow when flowing into the cultivation bucket (8) through the pressure water pushing pipe (5), a water pushing pipe (11) is arranged at the middle upper part of the cultivation bucket (8), a water pushing pump (12) and an oxygen increasing pipe (10) are arranged in the oxygen increasing water pushing pipe (11), the tail part of the oxygen increasing water pushing pipe (11) is usually set in a bent shape, the bottom of the breeding hopper (8) is provided with a bottom oxygenation pipe (30).

4. An environmental protection system for aquatic animal farming according to claim 1, wherein: the breeding hopper (8) can be constructed by an inner layer using an inner framework (31), a middle layer using waterproof soft cloth (32) and an outer layer using a bearing net (33), and can also be constructed by a single layer or multiple layers of hard materials.

5. An environmental protection system for aquatic animal farming according to claim 1, wherein: the sewage collecting tank (15) is a strip-shaped sewage sedimentation and collection device generally, the sewage collecting tank (15) is connected with a sewage discharge hole (7) at the bottom of the breeding hopper (8) through a sewage discharge pipe (13), when the sewage collecting tank (15) is arranged in a strip shape, the section of the sewage collecting tank (15) is generally in an inverted trapezoid shape with a wide upper part and a narrow lower part, but not limited to the inverted trapezoid shape, the bottom of the sewage collecting tank (15) is generally flat, and a sewage suction head (16) can move on the sewage collecting tank to suck sewage conveniently; an overflow opening (21) is arranged at the position above the tail part of the sewage collecting groove (15) and close to the water surface.

6. An environmental protection system for aquatic animal farming according to claim 1, wherein: the aquaculture water body (20) provides aquaculture water for aquatic animals and further purifies the water overflowing from the overflow opening (21), so that the aquaculture water can be reused; the aquaculture water (20) may be water in ponds, rivers, lakes, poises, ditches.

7. An environmental protection system for aquatic animal farming according to claim 1, wherein: the sewage suction pump (17) can be arranged on the water surface in the sewage collection tank (15) in a suspending manner through a floating plate (18), the sewage suction pump (17) is connected with a traction rope (19), the traction rope (19) is connected with a tractor (14), when the tractor (14) drives the traction rope (19) to do reciprocating motion, the sewage suction pump (17) and a sewage suction head (16) of the sewage suction pump (17) do reciprocating motion, the sewage suction head (16) moves at the bottom of the sewage collection tank (15) to suck sewage out of the sewage collection tank (15), and the sewage suction pump (17) can be connected with 1 or more sewage suction heads (16); the sewage suction pump (17) can also be arranged outside the sewage collection tank (15) and is connected with a sewage suction head (16) in the sewage collection tank (15) through a hose, and only the sewage suction head (16) is moved to suck sewage.

8. An environmental protection system for aquatic animal farming according to claim 1, wherein: the manure storage box (24) can be a hollow box body in any shape or a bag made of soft materials, and can be arranged in the aquaculture water body or placed outside the aquaculture water body; when the manure storage box (24) is arranged outside the culture water body, the manure storage box can be arranged into a manure storage tank; the excrement storage box (24) is provided with an excrement inlet pipe (22) connected with the sewage suction pump (17), and the top of the excrement storage box (24) is provided with an exhaust hole (23); the excrement pumped by the sewage suction pump (17) is input into an excrement storage tank (24) through an excrement inlet pipe (22) and stored.

9. An environmental protection system for aquatic animal farming according to claim 1, wherein: the excrement discharging pump (26) is connected with the excrement storage box (24) through an excrement discharging pipe (25), and when more excrement is stored in the excrement storage box (24) or the stored excrement needs to be utilized, the excrement discharging pump (26) pumps the excrement in the excrement storage box (24) out of a water body through the excrement discharging pipe (25); the excrement discharging pump (26) can be provided with a water mixing pipe (28), when excrement is pumped from the excrement storage tank (24), water can be pumped from a water body through the water mixing pipe (28) to be mixed with the excrement, and crops can be directly irrigated after the concentration of the excrement is diluted; the manure discharge pump (26) is generally arranged near the manure storage tank (24), can be suspended on the water surface and can also be arranged outside the water body.