Circulating aquaculture system

Abstract

The utility model discloses a circulating aquaculture system, which relates to the technical field of aquaculture equipment and comprises an aquaculture container and a water treatment unit. The culture container comprises a plurality of box bodies, and each box body comprises a plurality of culture ponds; the water treatment unit comprises a sedimentation tank, a microfiltration tank, a water inlet bin, a first pump body and a biochemical tank which are communicated in sequence; the bottom of the culture pond is an inclined plane; inclined plates are fixedly arranged at the high end and on the two sides of the bottom of the culture pond, water inlet channels are formed by the inclined plates and the corresponding inner side walls and the bottom of the culture pond, and the water inlet channels are communicated with one another. A plurality of water outlet holes are formed in the positions, close to the bottom of the culture pond, of the inclined plates; a bottom discharge channel is formed in the bottom end of the bottom of the culture pond, and the tail end of the bottom discharge channel is communicated with the settling pond. The water quality cleanness and the stability of each water quality parameter are effectively kept, the circulating aquaculture is realized, and the water resource is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aquatic product breeding equipment technical field, especially a kind of circulating aquatic product breeding system. BACKGROUND

[0002] Traditional aquaculture mode faces many challenges, of which the most prominent is water pollution and disease control problem. In traditional breeding, the excrement and residual feed of fish will sink into the bottom of pond, if not cleaned in time, excrement and feed will dissolve into water, increase the content of harmful substances such as ammonia nitrogen and nitrite nitrogen in pond water, lead to rapid deterioration of water quality, threaten the survival of cultured fish; In addition, the huge consumption of water resources in traditional breeding mode also makes it difficult to continue in the area where water resources are increasingly scarce.

[0003] Therefore, it is necessary to provide a circulating aquatic product breeding system with comprehensive purification. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a circulating aquatic product breeding system to solve the problems existing in the prior art, effectively maintain clean water quality, improve water quality and save water resources.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] The utility model provides a kind of circulating aquaculture system, including breeding container and water treatment unit;The breeding container includes multiple box, each the box includes multiple breeding pond;The water treatment unit includes the sedimentation tank, microfiltration tank, water inlet storehouse, first pump body and biochemical pool communicated sequentially;The pool bottom of the breeding pond is inclined plane;In the pool bottom of the breeding pond high end and both sides are fixedly provided with inclined plate, each the inclined plate with the corresponding inside wall and pool bottom of the breeding pond all form water inlet passage, each the water inlet passage is interconnected;Multiple water outlets are formed on each the inclined plate position close to the pool bottom of the breeding pond;Bottom end of the pool bottom of the breeding pond is equipped with bottom drain passage, the end of bottom drain passage is communicated with the sedimentation tank, and the sediment of the pool bottom of the breeding pond can flow into the sedimentation tank;The bottom of the sedimentation tank is equipped with sediment discharge pipe for discharging sediment, and supernatant in the sedimentation tank is used to flow into the microfiltration tank;Solid-liquid separator is provided in the microfiltration tank, the inlet of the solid-liquid separator is used to receive supernatant in the sedimentation tank, and the outlet of the solid-liquid separator is used to flow into the water inlet storehouse;The inlet of the first pump body is communicated with the water inlet storehouse, and the outlet of the first pump body is communicated with biochemical connection pipe and dosing connection pipe, the end of the biochemical connection pipe is used to communicate with the biochemical pool, and the end of the dosing connection pipe is used to communicate with the water inlet passage of each the breeding pond;Valve is respectively arranged on the biochemical connection pipe and the dosing connection pipe;The water outlet of the biochemical pool is used to communicate with the water inlet passage of each the breeding pond.

[0007] Preferably, each of the breeding ponds is provided with a water jet pipe above the high end of the pool bottom;The water jet pipe is provided with multiple spray holes.

[0008] Preferably, each of the breeding ponds is provided with a surface drain passage on the upper side wall close to the bottom end of the pool bottom;The end of the surface drain passage is communicated with the sedimentation tank.

[0009] Preferably, a partition plate is arranged in each of the breeding ponds;The breeding pond is divided into breeding cavity and sewage isolation cavity by the partition plate;The pool bottom in the breeding cavity is provided with each of the inclined plates;The sewage isolation cavity is located at the bottom end close to the pool bottom, and the sewage isolation cavity is communicated with the bottom drain passage and the inlet of the surface drain passage;The partition plate includes two side plates and a middle plate;The two side plates are located on both sides of the middle plate;One end of the two side plates close to the middle plate is inclined to the side close to the sewage isolation cavity;Multiple bottom drain holes are arranged on the lower end of each of the side plates and the middle plate;Multiple surface drain holes are arranged on the upper end of the middle plate.

[0010] Preferably, a micro-nano aeration small pipe for supplementing oxygen is further arranged in each of the breeding ponds close to the high end of the pool bottom.

[0011] Preferably, the sedimentation tank has a sedimentation bin and a supernatant bin; the sedimentation bin is communicated with the end of the bottom discharge channel; the bottom of the sedimentation bin is provided with an inclined collection guide surface, the lower end of the collection guide surface is communicated with the sediment discharge pipe; the sidewall of the sedimentation bin is provided with a supernatant outflow hole, the supernatant outflow hole is communicated with the supernatant bin; the liquid in the supernatant bin is used for flowing into the microfiltration tank.

[0012] Preferably, a plurality of ultraviolet disinfection lamps are arranged in the sedimentation bin.

[0013] Preferably, the solid-liquid separator is a microfiltration machine, and the microfiltration machine is provided with a backwashing mechanism.

[0014] Preferably, the biochemical tank comprises a first bin body, a second bin body and a transition bin; the first bin body is provided with a water spraying pipe above, the inlet of the water spraying pipe is communicated with the end of the biochemical connecting pipe, the water spraying pipe is provided with water spraying holes; the first bin body is provided with an aeration pipe for aeration, and the first bin body is placed with MBBR fillers; the water in the first bin body enters the bottom of the second bin body through a second pump body; the second bin body is provided with rattan cotton; the upper portion of the second bin body is communicated with the transition bin through a connecting pipe, the transition bin is provided with an ozone generator, and the transition bin is communicated with the water inlet channel of each aquaculture tank through an outflow pipe.

[0015] Preferably, the outlet of the first pump body is further communicated with a water spraying connecting pipe, and the water spraying connecting pipe is used for being communicated with each water spraying pipe.

[0016] The utility model discloses relative to prior art has obtained following technical effect:

[0017] The circulating water aquaculture system provided by the utility model, through setting the bottom of the aquaculture tank as an inclined surface, setting the inclined plate at the high end and both sides of the tank bottom to form a flushing type water inlet channel of the tank bottom sediment, the tank bottom sediment can flow along the inclined tank bottom to the bottom discharge channel at the bottom end under the double actions of gravity and the flushing of the water discharge channel of the water inlet channel, and finally enter the sedimentation tank, effectively improve the water flow, reduce the accumulation of sediment, and keep the water clean, and the water treatment unit arranged can sequentially carry out deposition, filtration and biochemical treatment on the water in the aquaculture tank, reduce the turbidity of the tank water, reduce the content of ammonia nitrogen, nitrite and other substances, thereby improving the water quality, forming the use of circulating water, and reasonably utilizing water resources, and the setting of the water inlet bin can isolate the biochemical tank and other equipment and the aquaculture tank when it is needed to medicate the aquaculture tank for disinfection, drug prevention and treatment or treatment, guarantee the stability of the medication and reduce the influence on the biochemical tank, and make the water inlet more flexible. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 The overall structure schematic diagram of the circulating water aquaculture system provided by the present application is shown in the figure.

[0020] Figure 2 The top view of the circulating water aquaculture system provided by the present application is shown in the figure.

[0021] Figure 3 The overall structure schematic diagram of the circulating water aquaculture system provided by the present application is shown in the figure.

[0022] Figure 4 The axonometric structure schematic diagram of the culture pond in the circulating water aquaculture system provided by the present application is shown in the figure.

[0023] Figure 5 The structure schematic diagram of the culture pond in the circulating water aquaculture system provided by the present application is shown in the figure.

[0024] Figure 6 The axonometric structure schematic diagram of the culture pond in the circulating water aquaculture system provided by the present application is shown in the figure.

[0025] Figure 7 The axonometric structure schematic diagram of the culture pond in the circulating water aquaculture system provided by the present application is shown in the figure.

[0026] Figure 8 The structure schematic diagram of the sedimentation tank in the circulating water aquaculture system provided by the present application is shown in the figure.

[0027] Figure 9 The structure schematic diagram of the microfiltration tank in the circulating water aquaculture system provided by the present application is shown in the figure.

[0028] Figure 10 The structure schematic diagram of the microfiltration tank in the circulating water aquaculture system provided by the present application is shown in the figure.

[0029] Figure 11 The structure schematic diagram of the water inlet bin, the biochemical tank and the connecting pipelines in the circulating water aquaculture system provided by the present application is shown in the figure.

[0030] Figure 12 The structure schematic diagram of the biochemical tank in the circulating water aquaculture system provided by the present application is shown in the figure.

[0031] In the figure:

[0032] 10 - box; 11 - breeding pool; 111 - breeding cavity; 112 - sewage isolation cavity; 12 - inclined plate; 121 - water outlet hole; 13 - plugging inclined plate block; 14 - bottom discharge pipe; 15 - surface discharge pipe; 16 - water spray pipe; 17 - micro-nano aeration small pipe; 18 - partition plate; 181 - side plate; 182 - middle plate; 183 - bottom discharge hole; 184 - surface discharge hole; 19 - water inlet main pipe;

[0033] 20 - sedimentation tank; 21 - sedimentation bin; 22 - clear liquid bin; 23 - sediment discharge pipe; 24 - collection guide surface; 25 - supernatant outflow hole; 26 - ultraviolet disinfection lamp; 27 - supply pipe;

[0034] 30 - microfiltration tank; 31 - microfiltration machine; 32 - flushing pump; 33 - flushing pipe; 34 - flushing head; 35 - dirty flow guide groove; 36 - blowdown pipe;

[0035] 40 - water inlet bin; 41 - biochemical connection pipe; 42 - dosing connection pipe; 43 - water spraying connection pipe; 44 - water inlet pump inlet pipe;

[0036] 50 - biochemical tank; 51 - first bin body; 52 - second bin body; 53 - transition bin; 54 - water spraying pipe; 55 - second pump body; 56 - outflow pipe; 57 - water outlet pipe;

[0037] 60 - bottom discharge main pipe; 61 - surface discharge main pipe. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0039] The purpose of the present application is to provide a circulating aquaculture system to solve the problems existing in the prior art, effectively maintain water quality, improve water quality, and save water resources.

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0041] Embodiment one

[0042] The present embodiment provides a circulating aquaculture system, which comprises a water inlet bin 40, a biochemical connection pipe 41, a dosing connection pipe 42, a water spraying connection pipe 43, a water inlet pump inlet pipe 44, a biochemical tank 50, a first bin body 51, a second bin body 52, a transition bin 53, a water spraying pipe 54, a second pump body 55, an outflow pipe 56, a water outlet pipe 57, a bottom discharge main pipe 60, and a surface discharge main pipe 61. Figures 1-12As shown, it comprises a breeding container and a water treatment unit; the breeding container comprises a plurality of boxes 10, each box 10 comprises a plurality of breeding pools 11; the water treatment unit comprises a sedimentation tank 20, a microfiltration tank 30, a water inlet bin 40, a first pump body and a biochemical tank 50 which are sequentially communicated; the pool bottom of the breeding pool 11 is an inclined surface; an inclined plate 12 is fixedly arranged at the high end and both sides of the pool bottom of the breeding pool 11, each inclined plate 12 and the corresponding inner side wall and pool bottom of the breeding pool 11 form a water inlet channel, and each water inlet channel is communicated with each other; a plurality of water outlet holes 121 are arranged on each inclined plate 12 close to the pool bottom of the breeding pool 11; a bottom discharge channel is arranged at the bottom end of the pool bottom of the breeding pool 11, the end of the bottom discharge channel is communicated with the sedimentation tank 20, and the pool bottom sediment of the breeding pool 11 can flow into the sedimentation tank 20; a sediment discharge pipe 23 for discharging sediment is arranged at the bottom of the sedimentation tank 20, and the supernatant in the sedimentation tank 20 is used to flow into the microfiltration tank 30; a solid-liquid separator is arranged in the microfiltration tank 30, the inlet of the solid-liquid separator is used to receive the supernatant in the sedimentation tank 20, and the filtered liquid flowing out of the outlet of the solid-liquid separator is used to enter the water inlet bin 40; the inlet of the first pump body is communicated with the water inlet bin 40, the outlet of the first pump body is communicated with a biochemical connecting pipe 41 and a dosing connecting pipe 42, the end of the biochemical connecting pipe 41 is used to communicate with the biochemical tank 50, and the end of the dosing connecting pipe 42 is used to communicate with the water inlet channel of each breeding pool 11; valves are arranged on the biochemical connecting pipe 41 and the dosing connecting pipe 42 respectively; the water outlet of the biochemical tank 50 is used to communicate with the water inlet channel of each breeding pool 11.

[0043] By setting the pool bottom of the breeding pool 11 as an inclined surface, and setting the inclined plates 12 at the high end and both sides of the pool bottom to form the flushing type water inlet channel for the pool bottom sediment, the pool bottom sediment can flow along the inclined pool bottom to the bottom discharge channel at the bottom end under the double actions of gravity and the flushing of the water discharged from the water inlet channel, and finally enters the sedimentation tank 20, which effectively improves the water flow and reduces the accumulation of sediment, and keeps the water clean; the water in the breeding pool 11 can be sequentially subjected to sedimentation, filtration and biochemical treatment in the arranged water treatment unit, which reduces the turbidity of the pool water, reduces the content of ammonia nitrogen, nitrite and other substances, and thus improves the water quality, to form the use of circulating water and reasonably use water resources; the arrangement of the water inlet bin 40 can isolate the biochemical tank 50 and other equipment and the breeding pool 11 when it is needed to dose the breeding pool 11 for disinfection, drug prevention and treatment or treatment, to ensure the stability of the drug and reduce the influence on the biochemical tank 50, and make the water inlet more flexible.

[0044] Among them, the related setting of the breeding container is explained as follows:

[0045] In the optional scheme of the embodiment, preferably, as Figures 1-7As shown in the drawings, the aquaculture tank 11 is provided with a partition plate 18; the partition plate 18 divides the aquaculture tank 11 into an aquaculture cavity 111 and a sewage isolation cavity 112; the bottom of the aquaculture cavity 111 is provided with each inclined plate 12; the sewage isolation cavity 112 is located at the bottom end close to the bottom of the tank, and the sewage isolation cavity 112 is in communication with the inlet of the bottom discharge channel and the surface discharge channel; the partition plate 18 includes two side plates 181 and a middle plate 182; the two side plates 181 are located on both sides of the middle plate 182; one end of the two side plates 181 close to the middle plate 182 is inclined to the side close to the sewage isolation cavity 112; the lower end of each side plate 181 and the middle plate 182 is provided with a plurality of bottom discharge holes 183; the upper end of the middle plate 182 is provided with a plurality of surface discharge holes 184.

[0046] Specifically, as shown in the drawings, Figures 4-7 The two side plates 181 cooperate with the middle plate 182 to form the partition plate 18, and the two side plates 181 are inclined, cooperating with the water flow out of the water inlet channel on both sides to make the bottom sediment and the water surface material collect at the position of the middle plate 182, forming a stable dirty discharge effect; and the bottom discharge holes 183 provided at the lower end of the side plate 181 and the middle plate 182 can facilitate the large-flow discharge of the bottom sediment into the sewage isolation cavity 112; the surface discharge holes 184 provided at the upper end of the middle plate 182 can make the water surface material stably enter the sewage isolation cavity 112 from the surface discharge holes 184.

[0047] Specifically, as shown in the drawings, Figure 4 and Figure 5 The two side plates 181 cooperate with the middle plate 182 to form the partition plate 18, and the two side plates 181 are inclined, cooperating with the water flow out of the water inlet channel on both sides to make the bottom sediment and the water surface material collect at the position of the middle plate 182, forming a stable dirty discharge effect; and the bottom discharge holes 183 provided at the lower end of the side plate 181 and the middle plate 182 can facilitate the large-flow discharge of the bottom sediment into the sewage isolation cavity 112; the surface discharge holes 184 provided at the upper end of the middle plate 182 can make the water surface material stably enter the sewage isolation cavity 112 from the surface discharge holes 184.

[0048] In the optional scheme of the present embodiment, more preferably, as shown in the drawings, Figures 4-7 Each aquaculture tank 11 is provided with a water spraying pipe 16 above the high end of the bottom (specifically in the aquaculture cavity 111); the water spraying pipe 16 is provided with a plurality of spray holes (each spray hole can be located above the liquid level in the aquaculture tank 11). The jet formed by the water sprayed from the spray holes is used for food attraction, which is opened during feeding to attract the aquaculture fish to eat.

[0049] In the optional scheme of the present embodiment, more preferably, as shown in the drawings, Figures 1-7 The outlet of the first pump body is also communicated with a water spraying connecting pipe 43, which is used to communicate with each water spraying pipe 16.

[0050] In the optional scheme of the present embodiment, more preferably, the aquaculture tank 11 is also provided with a micro-nano aeration pipe 17 close to the high end of the bottom for supplementing oxygen.

[0051] Specifically, the micro-nano ceramic aeration disc can be arranged in the breeding cavity 111 when needed, and the micro-nano ceramic aeration disc can be taken out of the breeding cavity 111 when not needed.

[0052] Specifically, the micro-nano aeration pipe 17 is fixedly arranged in the breeding tank 11, and the micro-nano ceramic aeration disc is removable.

[0053] In an optional solution of the embodiment, as shown in Figure 4 and Figure 7 each breeding tank 11 is provided with a bottom discharge channel on the upper side wall of the bottom end close to the bottom of the tank, and the end of the bottom discharge channel is in communication with the sediment tank 20.

[0054] Specifically, the bottom discharge channel and the surface discharge channel are also provided with necessary valves.

[0055] In the present embodiment, the related setting of the sediment tank 20 is as follows:

[0056] In an optional solution of the embodiment, as shown in Figures 1-3 and Figure 8 the sediment tank 20 has a sediment tank 21 and a clear liquid tank 22; the sediment tank 21 is in communication with the end of the bottom discharge channel; the bottom of the sediment tank 21 has an inclined collection guide surface 24, the lower end of the collection guide surface 24 is in communication with the sediment discharge pipe 23 (i.e. the lowest part of the collection guide surface 24 is in communication with the sediment discharge pipe 23 below it); the sidewall of the sediment tank 21 is provided with a supernatant outflow hole 25, which is in communication with the clear liquid tank 22; the liquid in the clear liquid tank 22 is used to flow into the microfiltration tank 30.

[0057] Specifically, the collection guide surface 24 can be one, or two oppositely arranged inclined surfaces as shown in Figure 8 , which can make the sediment in the sediment tank 21 flow into the sediment discharge pipe 23 more smoothly.

[0058] In an optional solution of the embodiment, as shown in Figure 8 the sediment tank 21 is provided with a plurality of ultraviolet sterilization lamps 26 (the number and type are not limited, which can be arranged as 4, and which are used for ultraviolet sterilization of the inside of the sediment tank 21).

[0059] In the present embodiment, the related setting of the microfiltration tank 30 is as follows:

[0060] In an optional solution of the embodiment, as shown in Figure 1As shown, the solid-liquid separator is a microfilter 31, and the microfilter 31 has a backwashing mechanism.

[0061] Specifically, the microfilter 31 is of a prior structure, and the backwashing mechanism of the microfilter 31 is also of a prior structure, which will not be described in detail here.

[0062] Specifically, as shown in Figure 9 and Figure 10 , the backwashing mechanism includes a flushing pump 32, a flushing pipe 33, a dirty flow guide groove 35, a dirty discharge pipe 36, etc. The outlet of the flushing pump 32 is in communication with the flushing pipe 33, and a plurality of flushing heads 34 are arranged on the flushing pipe 33. The flushing heads 34 correspond to the outside of the annular filter screen of the microfilter 31. The dirty flow guide groove 35 is located on the inside of the annular filter screen of the microfilter 31, and each flushing head 34 corresponds to the position of the dirty flow guide groove 35. The flushing head 34 can flush the dirt on the inside of the annular filter screen of the microfilter 31 and drop into the dirty flow guide groove 35, and then be discharged through the dirty discharge pipe 36.

[0063] Among them, the related setting of the water inlet bin 40 is as follows:

[0064] Specifically, as shown in Figures 1-3 and Figure 11 , the water inlet bin 40 has two water inlets. One is the filtered water from the microfiltration tank 30, and the other is the water pumped from the well outside. The water inlet bin 40 can be provided with a water inlet pump-in pipe 44, and the pipe opening is in communication with the water inlet bin 40.

[0065] Specifically, the first pump body (not shown in the figure) can be arranged outside or inside the water inlet bin 40, which can be arranged according to the actual situation. It is a prior device, which will not be described in detail here.

[0066] Among them, the related setting of the biochemical tank 50 is as follows:

[0067] In the optional scheme of the embodiment, more preferably, as shown in Figure 1 , the biochemical tank 50 includes a first bin body 51, a second bin body 52, and a transition bin 53. The first bin body 51 is provided with a water spraying pipe 54 at the top, the inlet of the water spraying pipe 54 is in communication with the end of the biochemical connection pipe 41, and the water spraying pipe 54 is provided with water spraying holes. An aeration pipe for aeration is arranged in the first bin body 51, and MBBR filler is placed in the first bin body 51. The water in the first bin body 51 enters the bottom of the second bin body 52 through the second pump body 55 (a water outlet pipe 57 is arranged on the side wall of the first bin body 51, a water outlet hole 121 is opened on the water outlet pipe 57, and a separation net is further sleeved on the water outlet pipe 57 of the first bin body 51). The second bin body 52 is provided with rattan cotton. The upper part of the second bin body 52 is connected through a connection pipe (the number is not limited, which can be like Figure 12As shown, two units are connected to the transition chamber 53. An ozone generator is installed inside the transition chamber 53. The transition chamber 53 is connected to the water inlet channel of each aquaculture pond 11 through the outflow pipe 56.

[0068] Specifically, the circular outflow pipe 56 inside the transition chamber 53 is designed as a half-circular pipe structure (i.e., a complete circular pipe with half of its axis and center cut off), thereby ensuring that the water inside the transition chamber 53 can flow out fully through the outflow pipe.

[0069] Specifically, the structure of the water spray pipe 54 is as follows: Figure 11 As shown, it can be composed of multiple interconnected pipes, thereby allowing a larger flow rate to be poured into the first chamber 51 above the first chamber 51.

[0070] Specifically, the first compartment 51, together with the second compartment 52 and the transition compartment 53, forms a regular rectangular structure box from a top-down perspective; the first compartment 51 and the transition compartment 53 together form a complete rectangle from a top-down perspective.

[0071] Specifically, the purpose of the rattan cotton installed in the second chamber 52 is to adsorb suspended solids produced in the first chamber 51, and at the same time, it is beneficial for nitrifying bacteria to adsorb (i.e., the "biochemical cotton" function). The rattan cotton has dense and numerous pores and softness, which makes it an ideal material for cultivating nitrifying bacteria. Nitrifying bacteria can decompose toxic substances in the water, such as NH3 / NH4+ and NO2-, into non-toxic NO3-, thereby improving water quality.

[0072] Regarding other related settings:

[0073] Specifically, the recirculating aquaculture system provided in this embodiment is modularly designed, i.e., as shown in the example below. Figures 1-3 As shown, one water treatment unit can be paired with two tanks 10 (a total of eight aquaculture ponds 11); it can be set up as a multi-unit system to increase or decrease capacity as needed.

[0074] Specifically, the water level in each aquaculture pond 11 is higher than the liquid level in the sedimentation tank 20. Through the height difference and corresponding valves, the bottom and surface dirt in each aquaculture pond 11 is discharged into the sedimentation tank 20.

[0075] Specifically, during the aquaculture process, all aquaculture ponds 11, sedimentation ponds 20, microfiltration ponds 30, water inlet 40, and biochemical ponds 50 are continuously connected and in operation.

[0076] Specifically, the sedimentation tank 20 (specifically the clear liquid tank 22) and the microfiltration tank 30 are connected by a supply pipe 27. The supply pipe 27 is equipped with a pump (which is an existing water pumping device, not shown in the figure), which is used to pump the water from the clear liquid tank 22 into the microfiltration tank 30.

[0077] Specifically, such as Figures 1-3 As shown, the water treatment unit is located in the middle of the two boxes 10 of the aquaculture container; a mesh panel can be installed between the water treatment unit and the two side boxes 10 to form a walking platform, which facilitates the maintenance of various equipment and related operations of aquaculture personnel on farmed fish.

[0078] Specifically, a single container 10 of the aquaculture container may include multiple aquaculture ponds 11, which can be as follows: Figure 1 As shown, a large box 10 is divided into multiple breeding ponds 11.

[0079] Specifically, including but not limited to the tank 10, sedimentation tank 20, microfiltration tank 30, and inlet chamber 40, if they are not made of concrete or other materials, such as plastic, necessary reinforcing ribs can be installed at the corresponding positions on their outer walls.

[0080] Specifically, the sewage isolation chamber 112 of the aquaculture pond 11 is connected to a bottom drain pipe 14 (whose internal channel forms a bottom drain channel) and a surface drain pipe 15 (surface drain channel).

[0081] Specifically, the bottom drain pipes 14 of each aquaculture pond 11 can be connected to the same bottom drain main pipe 60, which is connected to the sedimentation tank 20; the surface drain pipes 15 of each aquaculture pond 11 can be connected to the same surface drain main pipe 61, which is connected to the sedimentation tank 20.

[0082] Specifically, the drug delivery connection tube 42 and the outflow tube 56 are respectively connected to the main water inlet pipe 19 of each side of the box 10.

[0083] Specifically, the drug delivery connection pipe 42 can be used to supply water during the drug delivery stage of each breeding pond 11 during the breeding process. At this time, the biological treatment pond 50 is separated to prevent the drug from entering the biological treatment pond 50 and affecting the microorganisms inside the biological treatment pond 50. It can also be used to supply water when cleaning each breeding pond 11 after the breeding is completed. At this time, the water used to clean the breeding pond 11 can be filtered through the sedimentation tank 20, the microfiltration tank 30 and the inlet tank 40 in sequence and then recycled.

[0084] Specifically, necessary valves can be installed on each relevant pipeline as needed to achieve a more convenient and effective control effect.

[0085] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A recirculating aquaculture system, characterized in that: Includes aquaculture containers and water treatment units; The aquaculture container includes multiple boxes, and each box includes multiple aquaculture ponds; The water treatment unit includes a sedimentation tank, a microfiltration tank, an inlet chamber, a first pump body, and a biological treatment tank connected in sequence. The bottom of the aquaculture pond is sloping. Inclined plates are fixedly installed at the high end and both sides of the bottom of the aquaculture pond. Each inclined plate forms a water inlet channel with the corresponding inner wall and bottom of the aquaculture pond, and the water inlet channels are interconnected. Multiple water outlet holes are opened on each inclined plate near the bottom of the aquaculture pond. A bottom drain channel is opened at the bottom end of the bottom of the aquaculture pond, and the end of the bottom drain channel is connected to the sedimentation tank, so that the sediment at the bottom of the aquaculture pond can flow into the sedimentation tank. The sedimentation tank is equipped with a sediment discharge pipe at the bottom for discharging sediment, and the supernatant in the sedimentation tank flows into the microfiltration tank. A solid-liquid separator is installed in the microfiltration tank; the inlet of the solid-liquid separator receives the supernatant from the sedimentation tank, and the filtered liquid flowing out of the solid-liquid separator enters the inlet chamber. The inlet of the first pump body is connected to the inlet chamber, and the outlet of the first pump body is connected to a biochemical connection pipe and a drug delivery connection pipe. The end of the biochemical connection pipe is connected to the biochemical tank, and the end of the drug delivery connection pipe is connected to the inlet channel of each of the aquaculture ponds. Valves are installed on the biochemical connection pipe and the drug delivery connection pipe respectively. The outlet of the biochemical tank is connected to the inlet channel of each of the aquaculture ponds.

2. The recirculating aquaculture system according to claim 1, characterized in that: Each of the aforementioned aquaculture ponds is equipped with a water spray pipe located above the high end of the pond bottom; the water spray pipe is equipped with multiple spray holes.

3. The recirculating aquaculture system according to claim 1, characterized in that: Each of the aforementioned aquaculture ponds has a surface discharge channel on the upper side wall near the bottom of the pond, and the end of the surface discharge channel is connected to the sedimentation pond.

4. The recirculating aquaculture system according to claim 3, characterized in that: The aquaculture tank is equipped with a partition plate; the partition plate divides the aquaculture tank into an aquaculture chamber and a sewage isolation chamber. The bottom of the aquaculture chamber is provided with each of the aforementioned inclined plates; The sewage isolation chamber is located at the bottom end near the bottom of the pool, and the sewage isolation chamber is connected to the inlet of the bottom discharge channel and the surface discharge channel; The partition plate includes two side plates and a middle plate; the two side plates are located on both sides of the middle plate; the ends of the two side plates near the middle plate are inclined towards the side near the sewage isolation chamber; each side plate and the lower end of the middle plate are provided with multiple bottom drainage holes; the upper end of the middle plate is provided with multiple surface drainage holes.

5. The recirculating aquaculture system according to claim 1, characterized in that: The aquaculture pond is also equipped with micro-nano aeration tubes for supplementing oxygen at one end near the bottom.

6. The recirculating aquaculture system according to claim 1, characterized in that: The sedimentation tank has a sedimentation chamber and a clear liquid chamber; The sedimentation tank is connected to the end of the bottom discharge channel; the bottom of the sedimentation tank has an inclined collection guide surface, and the lower end of the collection guide surface is connected to the sediment discharge pipe. The sedimentation chamber has a supernatant outlet hole on its side wall, which is connected to the clear liquid chamber; the liquid in the clear liquid chamber is used to flow into the microfiltration tank.

7. The recirculating aquaculture system according to claim 6, characterized in that: The sedimentation chamber is equipped with multiple ultraviolet disinfection lamps.

8. The recirculating aquaculture system according to claim 1, characterized in that: The solid-liquid separator is a microfilter, and the microfilter has a backwashing mechanism.

9. The recirculating aquaculture system according to claim 1, characterized in that: The biochemical pool includes a first chamber, a second chamber, and a transition chamber; A water spray pipe is installed above the first chamber, the inlet of which is connected to the end of the biochemical connecting pipe, and water spray holes are provided on the water spray pipe; an aeration pipe for air filling is installed inside the first chamber, and MBBR packing is placed inside the first chamber. Water in the first chamber enters the bottom of the second chamber through the second pump; the second chamber is equipped with cotton wicker. The second chamber is connected to the transition chamber via a connecting pipe at its top. An ozone generator is installed inside the transition chamber. The transition chamber is connected to the water inlet channel of each of the aquaculture ponds via an outlet pipe.

10. The recirculating aquaculture system according to claim 2, characterized in that: The outlet of the first pump body is also connected to a water spray connection pipe, which is used to connect with each of the water spray pipes.

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