CN216753284U

CN216753284U - Circulating water treatment system for aquaculture

Info

Publication number: CN216753284U
Application number: CN202220338859.3U
Authority: CN
Inventors: 陈志伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-20
Filing date: 2022-02-20
Publication date: 2022-06-17
Anticipated expiration: 2032-02-20

Abstract

The utility model is suitable for the field of aquaculture, and provides a circulating water treatment system for aquaculture, which comprises a main culture area, a purification area, a sedimentation area and a spray water pipe; the water in the pond can circulate among the main culture area, the purification area and the sedimentation area; the circulating flow path of the water body in the pond is a main culture area, a sedimentation area, a purification area and a main culture area; the spraying water pipe is arranged in the main culture area, and one end of the spraying water pipe is communicated with the water pump; the water pump is used for pumping water in the purification area and pumping the water into the main culture area through the jet water pipe; the water spraying pipe pumps out the water body towards the position of the sedimentation zone; the pond can recycle the culture water, reduce the use of medicines and reduce the pollution of discharged sewage to the environment; immediately, the metabolite at the bottom of the pond and impurities such as feed residue are pushed to the settling zone to reduce the pollution of the impurities to the water body.

Description

Circulating water treatment system for aquaculture

Technical Field

The utility model relates to the field of aquaculture, in particular to a circulating water treatment system for aquaculture.

Background

Most of previous fish culture modes are extensive, such as ponds, open-type flowing water ponds, net cages and the like, and the fish culture modes have high dependence on the environment and resources and cause pollution to the environment to a certain degree. Particularly, in the high-yield pond culture process, most of water quality regulation and control rely on a large amount of water change to achieve the aim of improving the water body of the pond, under the culture operation mode, pond wastewater with high content of nitrogen, phosphorus, organic matters and the like pollutes culture water environment, the phenomenon of water eutrophication is more and more serious, an environmental ecosystem is damaged, parasitic microorganisms are bred, high-density intensive pond culture operation is maintained highly by the use of chemical drugs, and the sanitary quality of fish products is directly threatened.

In addition, with the increase of the culture time, a thicker layer of fish excrement and feed residual bait is often accumulated at the bottom of the fish culture pond, and how to collect the residual matters becomes a more important technical problem in the field of aquaculture. However, this method has the disadvantage that the impact force of the gas output from the oxygen increasing tube is not strong, and the impact force of the gas blocked by the flow guiding plate is further weakened, so that it is difficult to ensure that the directional water flow driven by the gas can also have the force for driving the residual materials.

SUMMERY OF THE UTILITY MODEL

The utility model provides a circulating water treatment system for aquaculture, and aims to provide a circulating water treatment system for aquaculture, which is expected to enable a pond to have certain purification capacity and collect residual matters in the pond for subsequent treatment.

In order to realize the purpose, the utility model adopts the following technical scheme to realize the purpose:

a circulating water treatment system for aquaculture comprises a main culture area, a purification area, a sedimentation area and a spray water pipe; if the pond is a single-port pond, a partition plate can be arranged in the middle of the pond to divide the pond into at least two parts which are respectively used as a main culture area and a purification area, the partition plate can be made of plastic plates or plastic films, the height of the partition plate is the same as the height of the pond, and the bottom of the partition plate is inserted into bottom mud of the pond;

aquatic products are cultured in the main culture area, and a plurality of mutually parallel culture water tanks can be arranged in the main culture area; the purification area is used for purifying the water body, so that the use of medicines is reduced, and the pollution of discharged sewage to the environment is reduced; the settling zone is used for collecting aquatic metabolites and feed residues in water so as to reduce the pollution of the aquatic metabolites and the feed residues to the water body;

the water in the pond can circulate among the main culture area, the purification area and the sedimentation area; enabling the body of water in the pond to circulate in the pond; the circulating flow path of the water body in the pond is a main culture area → a sedimentation area → a purification area → a main culture area;

the spraying water pipe is arranged in the main culture area, and one end of the spraying water pipe is communicated with the water pump; the water pump is used for pumping water in the purification area and pumping the water into the main culture area through a spraying water pipe; and the water spraying pipe pumps out the water body towards the position of the settling zone. The water pump provides pressure for the ejected water body while pumping the water body in the purification area and inputting the water body into the main culture area through the ejection water pipe so as to ensure that the impact force of the ejected water body can drive metabolites and feed residues;

blocking nets capable of blocking fishes from passing through are arranged among the main culture area, the purification area and the sedimentation area respectively; the diameter of the net mesh of the blocking net can be 2 cm-3 cm so as to prevent fishes from passing through and not to block the flow of water and impurities.

Furthermore, feeding fishes fed by a feed feeding mode are cultured in the main culture area; benthic fishes and filter-feeding fishes which are bred in a natural feeding mode are bred in the settling area; and an ecological base and an ecological floating bed are sequentially arranged in the purification area according to the flowing direction of the water body. Benthic fishes and filter-feeding fishes are reasonably bred in the settling zone, and the nutrient substances such as residual bait, fish manure and the like discharged from the main breeding zone are effectively utilized to achieve the purpose of multiple utilization of the substances; a water body restoration technology is applied in the purification area, and an ecological base and an ecological floating bed are arranged, so that the self-purification capacity of the water body is effectively improved; thereby achieving the effect of changing less water or even not changing water during the culture period.

Furthermore, a plurality of oxygenation water pushing devices distributed along the water body circulation direction are further arranged in the pond, and the oxygenation water pushing devices are used for controlling the water body circulation direction and oxygenating the water body; because the flow direction of the bubbles is the same as the circulating flow direction of the water body, the oxygen in the bubbles can be dissolved in the water more quickly and uniformly under the impact of the water flow.

Furthermore, the oxygenation water pushing device comprises a bracket, and a guide plate and an aeration pipe which are arranged on the bracket; the aeration pipe is communicated with the air pump, and a plurality of aeration holes are distributed on the surface of the aeration pipe; the guide plate is an arc-shaped baffle; after the air pump ventilates to the aeration pipe, move to the water circulation flow direction through rebounding when the bubble that produces from the aeration hole rises to cowl, carry out oxygenation and push away water to the water.

Furthermore, the pond adopts an integrally cast reinforced concrete bottom plate and a brick-built pond wall.

Further, an emptying blow-off pipe communicated with an external treatment system is arranged at the bottom of the settling zone; the external sludge treatment system comprises a series of conventional sludge treatment devices such as a solid-liquid separator, and the separated sewage can be introduced into the purification zone for purification and then re-enters the main culture zone through a circulating water pipe; the emptying blow-off pipe is optionally provided with a sewage collecting pump, and one end of the sewage collecting pump is connected with a suction pipe for pumping sludge into the emptying blow-off pipe.

The utility model has the beneficial effects that:

1. the pond can recycle the culture water in the pond, reduce the use of medicines and reduce the pollution of discharged sewage to the environment;

benthic fishes and filter-feeding fishes which are bred in a natural feeding mode are bred in the sedimentation area; an ecological base and an ecological floating bed are sequentially arranged in the purification area according to the flowing direction of the water body; benthic fishes and filter-feeding fishes are reasonably bred in the settling zone, and residual baits, fish dung and other nutrient substances discharged from the main breeding zone are effectively utilized to achieve the purpose of multiple utilization of the substances; a water body restoration technology is applied in the purification area, and an ecological base and an ecological floating bed are arranged, so that the self-purification capacity of the water body is effectively improved; thereby achieving the effect of changing less water or even not changing water during the culture period.

2. By arranging the combination of the spray water pipe and the water pump and combining the spray water pipe and the water pump with the flow of purifying and changing water in the pond, the metabolites at the bottom of the pond, the feed residue and other impurities can be pushed into the precipitation zone in time so as to reduce the pollution of the impurities to the water body; moreover, a living environment of 'running water' is created by the method, so that the growth of fishes is facilitated;

one end of the main water delivery pipe is communicated with a water outlet of the water pump, and the direction of the water body sprayed from the opening of the spraying branch pipe is the direction of the sedimentation area; impurities such as metabolites, feed residues and the like are pushed to move to the precipitation zone through the jetted water flow; compared with the mode of pushing the impurities by gas, the mode of pushing the impurities by water flow has greatly increased force, so that the impurities can be cleaned immediately; and the mode of directly arranging the jet water pipe in the main culture area can create a living environment of 'running water' for cultured organisms, thereby facilitating the growth of fishes.

3. The pond is provided with a plurality of oxygenation water pushing devices distributed along the water body circulation direction, and the oxygenation water pushing devices are used for introducing water, controlling the water body circulation direction and oxygenating water; because the flow direction of the bubbles is the same as the circulating flow direction of the water body, the oxygen in the bubbles can be dissolved in the water more quickly and uniformly under the impact of the water flow.

In conclusion, the pond can recycle the culture water, reduce the use of medicines and reduce the pollution of discharged sewage to the environment; the impurities such as metabolites and feed residues at the bottom of the pond are pushed into the sedimentation area in time so as to reduce the pollution of the impurities to the water body; and a plurality of oxygenation water pushing devices arranged along the water body circulation direction are arranged for guiding the water body circulation direction and oxygenating the water body.

Drawings

FIG. 1 is a top view of a circulating water treatment system for aquaculture according to the embodiment 1;

FIG. 2 is a sectional view of a circulating water treatment system for aquaculture according to the embodiment 1;

FIG. 3 is a top view of the circulating water treatment system for aquaculture of this embodiment 2;

FIG. 4 is a sectional view of a circulating water treatment system for aquaculture according to the embodiment 2;

FIG. 5 is a top view of the main culture section forming a vortical flow in this example 2;

FIG. 6 is a schematic structural view of the oxygen-increasing water-pushing device;

fig. 7 is a top view of the aerator tube section.

In the figure: 1. a main culture area; 2. a purification zone; 3. a settling zone; 4. a spray water pipe; 5. a water pump; 6. a water delivery main pipe; 7. a spray branch pipe; 8. blocking a net; 9. an aeration pipe; 10. emptying a sewage discharge pipe; 11. an oxygenation water pushing device; 12. a support; 13. a baffle; 14. ecological base; 15. an ecological floating bed; 16. and a circulating water pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

Example 1

As shown in fig. 1-2, a circulating water treatment system for aquaculture comprises a main culture area 1, a purification area 2, a settling area 3 and a spray water pipe 4; in the embodiment, the pond is a single-port pond, the partition plate is arranged in the middle of the pond to divide the pond into at least two parts which are respectively used as a main culture area 1 and a purification area 2, the partition plate can be made of plastic plates or plastic films, the height of the partition plate is the same as the height of the pond, and the bottom of the partition plate is inserted into bottom mud of the pond; the water in the pond can circulate among the main culture area, the purification area and the sedimentation area 3; enabling the water body in the pond to circularly flow in the pond; aquatic products are cultured in the main culture area, and a plurality of mutually parallel culture water tanks can be arranged in the main culture area; the purification area is used for purifying the water body so as to recycle the culture water in the pond, reduce the use of medicines and reduce the pollution of discharged sewage to the environment; the settling zone is used for collecting aquatic metabolites and feed residues in water so as to reduce the pollution of the aquatic metabolites and the feed residues to the water body;

the spraying water pipe 4 is arranged in the main culture area, and one end of the spraying water pipe is communicated with the water pump 5; the water pump 5 is used for pumping water in the purification area, inputting the water into the main culture area through a jet water pipe and providing pressure for the jetted water so as to ensure that the impact force of the jetted water can drive the metabolites and the feed residual baits to move; the water pump can pump water from the purification area and spray the water into the main culture area, and can also pump purified water from other sewage treatment systems;

the water spraying pipe comprises a main water delivery pipe 6 and a plurality of branch spraying pipes 7 arranged on the main water delivery pipe 6 at intervals, one end of the main water delivery pipe is communicated with a water outlet of the water pump, and the direction of the water body sprayed from openings of the branch spraying pipes 7 is the direction of a settling area. Impurities such as metabolites, feed residues and the like are pushed to move to the precipitation zone through the jetted water flow; compared with the mode of pushing the impurities by gas, the mode of pushing the impurities by water flow has greatly increased force, so that the impurities can be cleaned immediately; moreover, the mode of directly arranging the spray water pipe in the main culture area can create a living environment of 'running water' for cultured organisms, thereby facilitating the growth of fishes; in addition, the mode of arranging the plurality of spraying branch pipes can visually determine the impact direction of the sprayed water flow, so that the position of a subsequent spraying water pipe can be conveniently adjusted, and the impact direction of the water flow is ensured to be the direction of a settling zone.

Further, the circulating flow path of the water body in the pond is a main culture area → a sedimentation area → a purification area → a main culture area;

blocking nets 8 capable of blocking fishes from passing through are arranged among the main culture area, the purification area and the sedimentation area respectively; the mesh diameter of the blocking net 8 can be 2 cm-3 cm so as to block the passing of fishes and not to block the flowing of water and impurities.

Furthermore, feeding fishes fed by a feed feeding mode are cultured in the main culture area; benthic fishes and filter-feeding fishes which are bred in a natural feeding mode are bred in the settling area; and an ecological base 14 and an ecological floating bed 15 are sequentially arranged in the purification area according to the flowing direction of the water body. Benthic fishes and filter-feeding fishes are reasonably bred in the settling zone, and residual baits, fish dung and other nutrient substances discharged from the main breeding zone are effectively utilized to achieve the purpose of multiple utilization of the substances; a water body restoration technology is applied in the purification area, and an ecological base 14 and an ecological floating bed 15 are arranged, so that the self-purification capacity of the water body is effectively improved; thereby achieving the effect of changing less water or even not changing water during the culture period.

Furthermore, a plurality of oxygenation water pushing devices 11 distributed along the water body circulation direction are further arranged in the pond, and the oxygenation water pushing devices 11 are used for introducing water, controlling the water body circulation direction and oxygenating the water body; because the flow direction of the bubbles is the same as the circulating flow direction of the water body, the oxygen in the bubbles can be dissolved in the water more quickly and uniformly under the impact of the water flow.

Further, as shown in fig. 6 and 7, the oxygen-increasing water-pushing device comprises a bracket 12, and a guide plate 13 and an aeration pipe 9 which are installed on the bracket 12; the aeration pipe 9 is communicated with the air pump, and a plurality of aeration holes are distributed on the surface of the aeration pipe; the guide plate 13 is an arc-shaped baffle; after the air pump ventilates to the aeration pipe, move to the water circulation flow direction through rebounding when the bubble that produces from the aeration hole rises to cowl, carry out oxygenation and push away water to the water.

Example 2

As shown in fig. 3-4, a circulating water treatment system for aquaculture comprises a main culture area, a purification area, a sedimentation area and a spray water pipe; the difference between the embodiment and the embodiment 1 is that the ponds in the embodiment are double-mouth ponds, one pond is a main culture area, and the other pond is a purification area; the water in the pond can circulate among the main culture area, the purification area and the sedimentation area; so that the water in the pond can circularly flow in the pond.

The sewage collecting well is communicated with an emptying and discharging pipe connected with an external processing system, and a discharging valve for controlling discharging is arranged between the sewage collecting well and the emptying and discharging pipe; the emptying and discharging pipe is communicated with an external sludge treatment system; the external sludge treatment system comprises a series of conventional sludge treatment devices such as a solid-liquid separator, and the separated sewage can be introduced into the purification zone for purification and then re-enters the main culture zone through a circulating water pipe 16; the emptying blow-off pipe is optionally provided with a sewage collecting pump, and one end of the sewage collecting pump is connected with a suction pipe for pumping sludge into the emptying blow-off pipe.

In the embodiment, the spraying water pipes are uniformly distributed on the annular water transmission main pipe, and the water outlet directions of any spraying branch pipes are downward inclined to point to the direction of the sewage collecting well.

In other embodiments, as shown in fig. 5, the injection manifold and the main water pipe have a characteristic acute angle α ° that swirls the water in the settling area to drive the fish metabolites and feed residues into the catch basin.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.

Claims

1. A circulating water treatment system for aquaculture is characterized by comprising a main culture area (1), a purification area (2), a sedimentation area (3) and a spray water pipe (4);

aquatic products are cultured in the main culture area (1), the purification area (2) is used for purifying water, and the sedimentation area (3) is used for collecting aquatic product metabolites and feed residues in the water;

the water in the pond can circulate among the main culture area (1), the purification area (2) and the sedimentation area (3); the circulating flow path of the water body in the pond is a main culture area (1) → a settling area (3) → a purifying area (2) → a main culture area (1);

the spraying water pipe (4) is arranged in the main culture area (1), and one end of the spraying water pipe (4) is communicated with the water pump (5); the water pump (5) is used for pumping water in the purification area (2) and pumping the water into the main culture area (1) through the spray water pipe (4); and the water spraying pipe pumps out the water body towards the position of the settling zone.

2. A system for treatment of circulating water for aquaculture according to claim 1 characterized in that between the main culture area (1), the purification area (2) and the settling area (3) are respectively placed retaining nets (8) which can block the passage of fish.

3. A circulating water treatment system for aquaculture as claimed in claim 1, characterized in that said main culture area (1) is fed with feed-fed fish; benthic fishes and filter-feeding fishes which are bred in a natural feeding mode are bred in the settling area (3); an ecological base (14) and an ecological floating bed (15) are sequentially arranged in the purifying area (2) according to the flowing direction of the water body.

4. The circulating water treatment system for aquaculture as claimed in claim 1, wherein a plurality of oxygen-increasing water-pushing devices (11) are arranged in the pond along the circulating direction of the water body, and the oxygen-increasing water-pushing devices (11) are used for controlling the circulating direction of the water body and increasing oxygen for the water body.

5. The circulating water treatment system for aquaculture of claim 4, wherein said oxygen-increasing water-pushing device (11) comprises a bracket (12) and a guide plate (13) and an aeration pipe (9) mounted on the bracket (12); the aeration pipe (9) is communicated with the air pump, and a plurality of aeration holes are distributed on the surface of the aeration pipe; the guide plate (13) is an arc baffle; after the air pump ventilates to aeration pipe (9), the bubble that produces from the aeration hole removes to water circulation flow direction through bounce-back when rising to cowl, carries out oxygenation and pushes away water to the water.

6. The circulating water treatment system for aquaculture of claim 1 wherein said pond employs an integrally cast reinforced concrete floor and bricked pond walls.

7. The circulating water treatment system for aquaculture as claimed in claim 1, wherein the bottom of the settling zone is provided with a blowdown pipe communicated with an external treatment system.