Farming and fishery coupling ecological planting and breeding system with central bottom pollution discharge function

Abstract

The utility model discloses an agricultural and fishery coupling ecological planting and breeding system capable of discharging sewage at the center bottom. The agricultural and fishery coupling ecological planting and breeding system comprises floating body assemblies, breeding grooves and planting grooves. The floating body assembly is detachably connected with the breeding tank and floats on the water surface, and the center position of the bottom of the breeding tank is communicated with a downwards-sunken sewage collecting barrel; the breeding tank is detachably connected with the planting tank; a precipitation fermentation tank is arranged between the culture tank and the planting tank; the precipitation fermentation tank and the planting tank are arranged in peripheral water bodies such as a pond or a large water surface and are positioned close to the outer side of the culture tank. The device is simple in structure, high in sewage collection and discharge efficiency, convenient to manage and protect, low in construction and use cost and high in practicability, water circulates among the culture tank, the precipitation fermentation tank, the planting tank and the water purification mechanism, an efficient and convenient water circulation system is formed, cyclic utilization of the culture water is achieved, and the culture risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, and specifically relates to a central bottom sewage discharge agricultural and fishery coupling ecological aquaculture system. Background Art

[0002] Traditional pond free-range farming and large water surface cage and enclosure farming methods have problems such as large pollution, difficult water quality control, frequent diseases, and low aquaculture yield per unit area. Specifically, the following problems exist:

[0003] Ecological and environmental protection risks: In traditional pond or large water surface free-range farming methods, the bottom of the aquaculture water body is filled with residual bait and fish feces, constantly emitting toxic and harmful substances into the aquaculture water body, seriously threatening the survival and health of cultured fish.

[0004] Low yield per unit area: The self-purification ability of pond water bodies is limited, and water quality problems severely limit the further improvement of aquaculture yield per unit area.

[0005] High aquaculture risks: First, the risk is high at night (the risk of hypoxia increases sharply due to the weakening of photosynthesis and the enhancement of respiration); second, in extreme weather such as sudden heavy rain following high temperatures in summer, continuous rainy weather, etc., due to water body convection, soluble toxic pollutants at the bottom layer diffuse to the surface water body, and water body convection also causes the convection and mixing of low dissolved oxygen water at the bottom layer and high dissolved oxygen water at the surface layer, resulting in a decrease in the overall dissolved oxygen and a sharp increase in aquaculture risks.

[0006] In addition, traditional pond aquaculture also has the following problems: large labor input and low labor efficiency; there is a bottleneck limit in the yield per unit area and it is difficult to increase it significantly; aquaculture waste accumulates at the bottom of the pond, making water quality control difficult; the production environment is dirty and messy, affecting product quality; a large amount of water is drained during net fishing, not only causing energy waste, but also causing ecological and environmental protection problems due to the direct discharge of tail water; currently, existing similar technical models at home and abroad: the IPRS (pond engineered recirculating aquaculture) aquaculture system, whose main working principle is to raise fish in rectangular aquaculture channels made of reinforced concrete or fiberglass, and form artificial flowing water in the aquaculture channels through a water supply and oxygen supply system, so as to flush out aquaculture pollutants from the channels and enter the sewage collection tank for treatment; the main drawbacks of the IPRS (pond engineered recirculating aquaculture) aquaculture system: the length of the aquaculture channels is relatively long, and the channels are rectangular with a long flow path, and the water flow mode of "inlet at the head and outlet at the tail" is prone to form turbulent flow, and solid pollutants roll repeatedly inside the channels and are difficult to discharge, resulting in low sewage collection and discharge efficiency, most pollutants cannot be discharged normally, accumulate and ferment inside the channels, release harmful substances, endanger the health of aquaculture aquatic products, and are extremely likely to cause a high incidence of fish diseases, and the construction and use costs are high, and the practicability is poor.

[0007] Therefore, how to provide a central bottom sewage discharge agricultural and fishery coupling ecological aquaculture system with simple structure, high sewage collection and discharge efficiency, ecological environmental protection, strong practicability, and increased aquaculture yield is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0008] The utility model aims to solve at least one of the above technical problems in the prior art to a certain extent.

[0009] For this purpose, an object of the utility model is to provide a central bottom sewage discharge agricultural and fishery coupling ecological aquaculture and planting system, which is arranged in a pond and includes: a floating body assembly, a culture tank, a precipitation and fermentation tank, and a planting tank;

[0010] Wherein, the floating body assembly is detachably connected to the culture tank and floats on the water surface, and a sewage collection bucket sunken downward is communicated with the center position of the bottom of the culture tank;

[0011] The culture tank is detachably connected to the planting tank; the planting tank is arranged in the pond and is adjacent to the outside of the culture tank; an aeration and oxygenation device is arranged in the planting tank;

[0012] It also includes a sewage discharge system and a water body purification mechanism;

[0013] The sewage discharge system includes a sewage collection bucket, a sewage pump and a sewage discharge pipe. The sewage pump is located in the sewage collection bucket. The water inlet end of the sewage discharge pipe is communicated with the outlet end of the sewage pump, and the outlet end of the sewage discharge pipe is communicated to the planting tank; when the sludge in the sewage collection bucket is full, the sewage pump is started regularly to discharge the aquaculture sludge accumulated in the sewage collection bucket to the precipitation and fermentation tank or the planting tank. The aquaculture sludge ferments and mineralizes in the precipitation and fermentation tank or the planting tank to form a fertilizer rich in soluble organic matter and minerals for the growth of plants planted in the planting tank, realizing the resource utilization of solid waste.

[0014] The water body purification mechanism is arranged in the pond for purifying the water body in the pond.

[0015] In the utility model, the culture tank is made of soft film materials such as knife scraping cloth, canvas, plastic coated cloth, pvc coated cloth or HDPE geomembrane. It can be made in two ways: one is to use the hot melt welding method to make the tank cloth of the above materials into a cuboid shape with an open upper surface and other closed surfaces; the other is to use the folding angle form to fold the four corners of the tank cloth of the above materials along the angle bisector, so that the corresponding two adjacent sides of the angle overlap at the equal length, and use materials such as screw gaskets to fix them together to form a cuboid shape with an open upper surface and other closed surfaces.

[0016] Furthermore, a circulation opening is provided at the center of the top wall of the sewage collection barrel, and a circulation hole corresponding to and communicating with the circulation opening is provided on the bottom wall of the culture tank. The top wall of the sewage collection barrel has a protruding eaves towards the center, and is fastened and closely attached to the bottom wall of the culture tank through fasteners such as "mouth-shaped" plastic frame strips and bolt gaskets, so that the sewage collection barrel is communicated with the culture tank, and a sunken circulation channel is formed at the connection between the sewage collection barrel and the culture tank. The water bodies inside the culture tank and the sewage collection barrel are completely isolated from the surrounding water bodies. A sunken circulation channel is formed at the connection between the sewage collection barrel and the culture tank. The sewage pump is located inside the sewage collection barrel and is communicated with the precipitation fermentation tank or the planting tank through a sewage pipe. The structural form of the sunken circulation channel enables the dirt in the culture tank to enter the sewage collection barrel more smoothly.

[0017] According to the above solution, the sewage pump can be regularly started according to the accumulation situation of solid sewage inside the sewage collection barrel, and the high-concentration sludge accumulated inside the sewage collection barrel can be discharged into the planting tank or the precipitation fermentation tank.

[0018] Furthermore, the floating body assembly includes a plurality of floating bodies and fixing members;

[0019] A plurality of the floating bodies are connected end to end to form a "mouth-shaped" floating body frame. The upper edge of the culture tank is fixedly connected to the "mouth-shaped" floating body frame by using the fixing members.

[0020] In the present utility model, the floating frame is a "mouth-shaped" floating body frame; the floating body assembly can be constructed by using floating bodies in the form of foam floating boards, plastic floating barrels, etc., and the floating bodies and the pedestrian pedal made of bamboo, wood and other materials are connected and fixed by using fixing materials such as angle steel, round pipes made of hot-dip galvanized or plastic materials, bolts, fixed buckles, and cable ties. The floating bodies are located on both sides of the pedestrian pedal to form a floating body assembly with a shoulder pole structure. A plurality of floating body assemblies are connected end to end and fixed to form a "mouth-shaped" floating body frame. The upper edge of the culture tank is fixed at the middle position of the pedestrian pedal of the "mouth-shaped" floating body frame by using fastening materials such as round pipes, screws, gaskets, fixed buckles, and cable ties, and the floating bodies are located on both sides of the fixed points to ensure the balanced force of the floating bodies. Among them, the culture tank and the precipitation fermentation tank are detachably connected to the floating body frame and float on the water surface.

[0021] Furthermore, a circle of water blocking curtains is provided along the inner edge of the floating body frame. The upper edge of the water blocking curtain is higher than the water surface inside the culture tank, and the lower edge is suspended with heavy weights. There should be a gap of about 10-30 cm between the lower edge and the bottom wall of the culture tank to allow the water flow to pass through smoothly.

[0022] The functions of the water baffle curtain are as follows: Firstly, it changes the direction of water flow, making the water body flow downward and then towards the four side walls in a direction perpendicular to the bottom wall of the cultivation tank. After passing through the gaps at the lower edge of the water baffle curtain, it then flows upward and finally discharges into the surrounding water body through the evenly distributed drainage holes on the four side walls of the cultivation tank, thereby enabling the internal water body of the cultivation tank to circulate and flow fully. Secondly, when the water flows upward after passing through the gaps at the lower edge of the water baffle curtain, the solid waste generated during cultivation, under the action of its own gravity, settles on the upper surface of the bottom wall of the cultivation tank, and then rolls and converges towards the sewage collection bucket at the center along the slope of the bottom wall, and finally is discharged to the sedimentation and fermentation tank or the planting tank through the sewage pump.

[0023] The water baffle curtain is designed to allow the surrounding water body to circulate fully inside the cultivation tank after entering it, enabling the internal water body of the cultivation tank to be exchanged fully and evenly, and preventing the solid waste generated during cultivation from being discharged into the surrounding water body through the drainage holes on the side walls of the cultivation tank, thus avoiding polluting the surrounding water body. The water baffle curtain can be made of the same materials as the cultivation tank, such as knife scraping cloth, canvas, PVC coated cloth, HDPE geomembrane, etc. Use a rectangular tank cloth with a length equal to the inner perimeter of the floating body frame and a width of 1 - 2 meters. Weld the two end edges along the length direction tightly to form a cube or cuboid structure that matches the inner edge size of the "square-shaped" floating body frame, with open upper and lower surfaces and sealed side walls around. Hang weights on the four edges of its lower surface, and the weights should fall on the upper surface of the bottom wall of the cultivation tank. Fix the four upper edges of the water baffle curtain to the inner edge of the floating body frame. Relying on the gravity pressure of the weights suspended on the bottom edge of the water baffle curtain, the cultivation tank presents a funnel shape, and the water baffle curtain is completely flat and stretched. When the surrounding water body enters the drop water aeration tower at the center of the cultivation tank through the water supply system and then flows into the cultivation tank, under the action of the water baffle curtain around the four side walls of the cultivation tank, the water body can only move vertically downward inside the cultivation tank and flow through the gap between the lower edge of the water baffle curtain and the bottom wall of the cultivation tank. After passing over the water baffle curtain, it then flows upward and flows out through the drainage holes at the upper edge of the cultivation tank and returns to the water supply pump. The setting of the water baffle curtain makes the convective exchange of the internal water body of the cultivation tank more sufficient, preventing the existence of dead corners in the water body exchange inside the cultivation tank. The water baffle curtain can also play a role in blocking the cultivation solid waste. When the internal water body of the cultivation tank passes over the water baffle curtain and flows vertically upward along the interlayer between the side wall of the cultivation tank and the water baffle curtain, the solid waste, under the action of its own gravity, settles on the upper surface of the bottom wall of the cultivation tank, and then rolls along the slope of the bottom wall of the cultivation tank to the sewage collection bucket at the center position of the cultivation tank, and then is discharged into the sedimentation and fermentation tank or the planting tank through the sewage system for subsequent use by the planting system.

[0024] Furthermore, it also includes: a sedimentation and fermentation tank;

[0025] The sedimentation and fermentation tank is arranged between the cultivation tank and the planting tank, and is detachably connected to the cultivation tank and detachably connected to the planting tank;

[0026] The outlet end of the sewage pipe is connected to the sedimentation fermentation tank;

[0027] The upper edge of the sedimentation fermentation tank is fixedly connected to a plurality of floating bodies by fixing parts in the sedimentation fermentation tank, and the plurality of floating bodies are connected end to end to form a "mouth-shaped" floating body frame (consistent with the above).

[0028] A circle of water retaining curtain is arranged along the inner edge of the floating body frame.

[0029] The bottom of the sedimentation fermentation tank is provided with a second sewage collecting bucket, a second sewage pump and a second sewage pipe;

[0030] The second sewage pump is fixed at the bottom of the second sewage collecting barrel;

[0031] The water inlet end of the second sewage pipe is connected to the outlet end of the second sewage pump, and the outlet end of the second sewage pipe is connected to other solid waste treatment devices on the shore;

[0032] The supernatant in the precipitation fermentation tank flows into the planting tank through the connecting pipe.

[0033] The water body in the sedimentation fermentation tank is completely isolated from the surrounding water body.

[0034] Large breeding tank (breeding water capacity of 200m 3 The above) need to be equipped with a sedimentation fermentation tank, that is, a combination mode of "breeding tank + sedimentation fermentation tank + planting tank". The sedimentation fermentation tank is built with the same materials and methods as the breeding tank. Similarly, the sedimentation fermentation tank also has a water curtain structure, and its working principle is the same as that of the breeding tank. The water body inside the sedimentation fermentation tank is connected to the planting tank through the through hole or connecting pipe on the side wall. The through hole is located below the water surface and as close to the water surface as possible to give full play to the vertical flow sedimentation effect of the water curtain, and the solid waste is blocked inside the sedimentation fermentation tank. The connection between the flow pipe and the tank cloth is sealed and leak-proof with flanges, gaskets and other materials. The high-concentration sludge discharged by the sewage system in the breeding tank is discharged into the sedimentation fermentation tank through the sewage pipe, and gradually settles to the bottom in the sedimentation fermentation tank. The second sewage collection bucket, the second sewage pump and the second sewage pipe are arranged at the center of the bottom wall of the sedimentation fermentation tank. When there is too much solid waste accumulated inside the sedimentation fermentation tank, the second sewage pump can be turned on to discharge the excess waste to the treatment device on the shore for drying, fermentation and resource utilization. There is a certain water pressure in the sedimentation fermentation tank, so it is installed and fixed in the form of a shoulder pole floating body frame to better balance the force. The sedimentation fermentation tank is connected to the planting tank through the second water supply pump and the second water supply pipe. The second waterfall aeration tower is arranged at the outlet of the second water supply pipe to complete the water body oxygenation while forming a water body circulation, ensuring that the dissolved oxygen inside the sedimentation fermentation tank is sufficient to meet the growth and reproduction of aerobic microorganisms, thereby accelerating the sewage fermentation process, and quickly converting the aquaculture solid waste deposited at the bottom into organic matter that is easily absorbed by plants to meet the growth needs of plants in the planting tank.

[0035] Furthermore, a number of heavy weights are suspended at the bottom of the water baffle curtain.

[0036] Further, a number of floating planting plates are provided in the planting tank. Openings are provided in the floating planting plates. Plants are planted in the openings, and the roots of the plants extend into the water body inside the planting tank. The floating planting plates also serve as the floating bodies of the planting tank. The floating planting plates are sequentially connected end to end and fixed with fixing parts to form a "one-shaped" floating body. The upper edge of the planting tank is hung on the "one-shaped" floating body. The water body inside the planting tank is completely isolated from the surrounding water body.

[0037] The planting tank is made of the same material as the aquaculture tank. The depth of the water body inside is about 50 cm to 100 cm. The shape of the top view can be rectangular or square. The floating body of the planting tank also serves as a planting board, and forms such as a planting basket or a planting mesh are adopted to plant plants such as hydroponic vegetables. The water body inside the planting tank is completely isolated from the surrounding water body. By regularly turning on and off the sewage pump, the solid dirt accumulated inside the sewage collection barrel is discharged into the planting tank (for large aquaculture tanks with a culture capacity of more than 200 m 3 above, they need to pass through a sedimentation and fermentation tank first and then enter the planting tank). The excess water naturally evaporates through the transpiration of the plants in the planting tank. A plurality of emergency drainage holes are opened on the side wall at the other end of the planting tank far from the aquaculture tank. The emergency drainage holes are 3 - 5 cm above the water surface to prevent the internal water level of the planting tank from being too high and causing structural damage or overturning.

[0038] Further, a water supply mechanism is installed in the pond. The water supply mechanism includes a water supply pump and a water supply pipe. The water supply pump is located at one end of the pond far from the aquaculture tank. The inlet end of the water supply pipe is connected to the water supply pump, and the outlet end of the water supply pipe communicates with the stepped drop - type aeration tower at the center of the aquaculture tank. The water body overflows from the outlet of the water supply pipe and then drops onto the upper surface of the drop - type aeration tower, and gradually drops from the drop - type aeration tower and finally flows into the aquaculture tank, and finally discharges from the drainage holes on the side walls around the aquaculture tank into the surrounding water body, completing water body aeration and water body exchange. The drop - type aeration tower adopts a stepped tower - type structure stacked in multiple layers, or can also be made of integrally formed foam, plastic and other materials into a stepped tower - type structure to enhance the aeration effect. When the water supply pump is started, the surrounding water body flows into the aquaculture tank through the water supply pump, the water supply pipe and the drop - type aeration tower, and discharges through the uniformly distributed drainage holes on the four walls of the aquaculture tank and flows back to the water supply pump, forming a water body circulation. The setting of the water supply system enables the water body to circulate back and forth between the surrounding pond (or other large water surfaces) and the aquaculture tank.

[0039] Furthermore, the water supply mechanism further includes a second water supply pump and a second water supply pipe;

[0040] The second water supply pump is located within the planting tank. The water inlet end of the second water supply pipe is connected to the second water supply pump, and the water outlet end of the second water supply pipe communicates with the second stepped-drop water aeration tower at the center of the sedimentation and fermentation tank.

[0041] The function of the second water supply pump is to circulate the water body between the sedimentation and fermentation tank and the planting tank, and at the same time complete water body aeration, so as to facilitate the better growth and reproduction of microorganisms in the sedimentation and fermentation tank and accelerate the fermentation process.

[0042] The top of the stepped-drop water aeration tower is a buffer container. Below the buffer container is a tower-shaped structure formed by integrally molding or stacking step by step with foam or plastic plates. The water flow cascades down on the stepped-drop water aeration tower to complete aeration.

[0043] Furthermore, the aquaculture tank has an open top surface, a closed bottom wall, and evenly distributed drainage holes on its side walls. Its internal water level is connected to the pond water body and is at the same height. The sewage collection bucket is located at the center of the bottom of the aquaculture tank. Under the gravitational pull of the sewage collection bucket and the water pump or weight inside it, the bottom wall of the aquaculture tank forms a pot-shaped groove with high surrounding and low center. During the aquaculture process, the solid pollutants generated gradually gather towards the sewage collection bucket at the lowest center of the aquaculture tank under the action of their own gravity. The clear water is discharged into the peripheral water body through the drainage holes on the surrounding side walls of the aquaculture tank and flows towards the water supply pump. An aquatic purification mechanism such as an ecological purification brush can be arranged between the aquaculture tank and the water supply pump to complete the purification and degradation of soluble organic substances in the aquaculture water body. After meeting the aquaculture water standard, it re-enters the aquaculture tank under the push of the water supply pump for aquaculture use, realizing the recycling of the water body.

[0044] Furthermore, the water body purification mechanism includes an ecological brush system and an aquatic plant purification system. After the water body is used for aquaculture, the dissolved oxygen in the water decreases, and harmful organic substances such as soluble N and P increase, which requires purification treatment. When the water body is discharged from the aquaculture tank into the peripheral water body of the pond, it will flow through the water body purification mechanism arranged inside the pond. This water body purification mechanism is located in the pond water body at the middle position between the aquaculture tank and the water supply pump. Through the microorganisms attached to it, the soluble organic substances in the water body are further purified, making the water quality meet the aquaculture standard requirements. Then, under the push of the water supply pump, it enters the aquaculture tank again to form a water body cycle, saving energy. Other water purification devices can also be arranged according to actual needs.

[0045] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0046] The structural arrangement of the present utility model enables the water body to circulate back and forth among the aquaculture tank, the sewage discharge system, the sedimentation and fermentation tank, the planting tank, the peripheral water body and the purification mechanism arranged therebetween. Under the action of the sewage discharge system, the sedimentation and fermentation tank, and the planting tank, the aquaculture solid pollutants in the aquaculture tank are separated, sedimented and fermented to realize their resource utilization. The upper-middle clear water flows back into the pond through the drain holes uniformly distributed on the side wall around the aquaculture tank, and is further purified by the water body purification mechanism in the pond to degrade or remove the excess soluble organic matter in the water body. After meeting the aquaculture water standard, it flows back into the aquaculture tank under the push of the water supply pump, forming an efficient and convenient water circulation system, always keeping the aquaculture water body clean and pollution-free, protecting the aquaculture water area environment and reducing the aquaculture risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0048] Figure 1 Structural schematic diagram of the central bottom sewage discharge agricultural and fishery coupling ecological aquaculture and planting system provided by the present utility model;

[0049] Figure 2 Another structural schematic diagram of the central bottom sewage discharge agricultural and fishery coupling ecological aquaculture and planting system provided by the present utility model;

[0050] Figure 3 Top view of the central bottom sewage discharge agricultural and fishery coupling ecological aquaculture and planting system provided by the present utility model;

[0051] Figure 4 Structural schematic diagram of the water blocking curtain provided by the present utility model;

[0052] Figure 5 Structural schematic diagram of the "mouth-shaped" floating body frame provided by the present utility model;

[0053] Figure 6 Top view of the "mouth-shaped" floating body frame provided by the present utility model;

[0054] Figure 7 Structural schematic diagram of the installation and fixation of the sewage collection barrel provided by the present utility model;

[0055] Figure 8 Top view of the installation and fixation of the sewage collection barrel provided by the present utility model;

[0056] Figure 9A side view of the arrangement of the sedimentation fermentation tank and the planting tank provided by the utility model;

[0057] Figure 10 A top view of the arrangement of the sedimentation fermentation tank and the planting tank provided by the utility model;

[0058] Figure 11 A schematic diagram of the structure of a stepped water-falling oxygenation tower provided by the utility model;

[0059] In the accompanying drawings, the structures represented by the reference numerals are listed as follows:

[0060] 1-pond, 11-water supply pump, 12-water supply pipe, 13-stepped water drop aeration tower, 14-second water supply pump, 15-second water supply pipe, 16-second stepped water drop aeration tower, 131-buffer container;

[0061] 2- floating body assembly, 21- floating body, 22- fixing member, 23- "U-shaped" floating body frame;

[0062] 3-breeding tank, 31-sewage collecting barrel, 32-sewage pump, 33-sewage pipe, 34-drain hole, 35-fastener;

[0063] 4-planting trough, 41-aeration and oxygenation device, 42-floating planting board, 43-plants;

[0064] 5-water retaining curtain, 51-weight block;

[0065] 6-sedimentation fermentation tank, 61-second sewage collecting barrel, 62-second sewage pump, 63-second sewage pipe, 64-connecting pipe. DETAILED DESCRIPTION

[0066] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0067] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0069] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0070] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0071] A central bottom sewage discharge agricultural and fishery coupling ecological cultivation and breeding system is arranged in pond 1, and includes: a floating body assembly 2, a cultivation tank 3, and a planting tank 4;

[0072] Among them, the floating body assembly 2 is detachably connected to the cultivation tank 3 and floats on the water surface. A sewage collection bucket 31 that is recessed downward is communicated with the center position of the bottom of the cultivation tank 3;

[0073] A sedimentation and fermentation tank is provided between the cultivation tank 3 and the planting tank 4; the planting tank 4 is arranged in the pond 1 and is adjacent to the outside of the cultivation tank 3; an aeration and oxygenation device 41 is provided in the planting tank 4;

[0074] It further includes a sewage discharge system and a water body purification mechanism;

[0075] The sewage discharge system includes a sewage collection bucket 31, a sewage pump 32, and a sewage pipe 33. The sewage pump 32 is located in the sewage collection bucket 31. The water inlet end of the sewage pipe 33 is communicated with the outlet end of the sewage pump 32, and the outlet end of the sewage pipe 33 is communicated to the sedimentation and fermentation tank 6 or the planting tank 4;

[0076] The water purification mechanism is arranged in the pond for purifying the water in the pond.

[0077] In some embodiments, the central part of the top wall of the sewage collection bucket 31 has a circulation port, and a circulation hole corresponding to and communicating with the circulation port is opened on the bottom wall of the breeding tank 3. The top wall of the sewage collection bucket 31 has a protruding eaves towards the center, and is fastened and closely attached to the bottom wall of the breeding tank 3 through a fastener 35, so that the sewage collection bucket 31 communicates with the breeding tank 3, and a sunken circulation channel is formed at the connection between the sewage collection bucket 31 and the breeding tank 3. The water inside the breeding tank 3 and the sewage collection bucket 31 is completely isolated from the surrounding water.

[0078] In some embodiments, the floating body assembly 2 includes a plurality of floating bodies 21 and fixing members 22;

[0079] A plurality of floating bodies 21 are connected end to end to form a "mouth-shaped" floating body frame 23, and the upper edge of the breeding tank 3 is fixedly connected to the "mouth-shaped" floating body frame 23 through a fixing member 22.

[0080] A circle of water blocking curtains 5 is arranged along the inner edge of the floating body frame 23.

[0081] In some embodiments, it further includes: a precipitation and fermentation tank 6;

[0082] The precipitation and fermentation tank 6 is arranged between the breeding tank 3 and the planting tank 4, and is detachably connected to the breeding tank 3 and detachably connected to the planting tank 4;

[0083] The outlet end of the sewage discharge pipe 33 communicates with the precipitation and fermentation tank 6;

[0084] A plurality of floating bodies 21 are connected end to end to form a "mouth-shaped" floating body frame 23, and the upper edge of the precipitation and fermentation tank 6 is fixedly connected to the "mouth-shaped" floating body frame 23 through a fixing member inside the precipitation and fermentation tank 6;

[0085] A circle of water blocking curtains 5 is arranged along the inner edge of the floating body frame 23.

[0086] In some other embodiments, the aeration and oxygenation device 41 is arranged in the precipitation and fermentation tank 6;

[0087] A second sewage collection bucket 61, a second sewage pump 62 and a second sewage discharge pipe are arranged at the bottom of the precipitation and fermentation tank;

[0088] The second sewage pump 62 is fixed at the bottom of the second sewage collection bucket 61

[0089] The inlet end of the second sewage discharge pipe 63 is communicated with the outlet end of the second sewage pump 62, and the outlet end of the second sewage discharge pipe 62 leads to a dry fermentation tank or other treatment devices on the shore for further treatment and resource utilization;

[0090] The supernatant in the precipitation and fermentation tank 6 flows into the planting tank through a connecting pipe 64.

[0091] The water body inside the precipitation fermentation tank is completely isolated from the surrounding water body.

[0092] In some embodiments, a plurality of heavy blocks 51 are suspended at the bottom of the water blocking curtain 5, and the plurality of heavy blocks 51 are regularly arranged.

[0093] In some embodiments, a plurality of floating planting plates 42 are provided in the planting tank 4, and the floating planting plates 42 are provided with openings; plants 43 are planted in the openings, and the roots of the plants extend into the water body inside the planting tank.

[0094] In some other embodiments, the upper edge of the planting tank is hung on the edge of the floating planting plate 42. The floating planting plates 42 are spaced apart from each other by a certain distance, and a fixing mesh is laid in the middle. Plants 43 are planted on the fixing mesh, and the roots of the plants extend into the water body inside the planting tank.

[0095] In some embodiments, a water supply mechanism is installed in the pond 1; the water supply mechanism includes a water supply pump 11 and a water supply pipe 12; the water supply pump 11 is located in the pond 1 or the surrounding water body of the large water surface and is as far away from the breeding tank 3 as possible, so that when the water body flows between the water supply pump 11 and the breeding tank 3, the flow distance is as long as possible, so that the water body can be fully purified; the water inlet end of the water supply pipe 12 is connected to the water supply pump 11, and the water outlet end of the water supply pipe 12 is communicated to the stepped drop aeration tower 13 at the center of the breeding tank 3.

[0096] In some other embodiments, the water supply mechanism further includes a second water supply pump 14 and a second water supply pipe 15;

[0097] The second water supply pump 14 is located in the planting tank 4. The water inlet end of the second water supply pipe 15 is connected to the second water supply pump 14, and the water outlet end of the second water supply pipe 15 is communicated to the second stepped drop aeration tower 16 at the center of the precipitation fermentation tank 6.

[0098] The function of the second water supply pump is to circulate the water body between the precipitation fermentation tank and the planting tank, and at the same time complete water body aeration.

[0099] The top of the stepped drop aeration tower 13 is a buffer container 131. Below the buffer container is a tower-shaped structure formed by integrally molding or stacking step by step with foam or plastic plates. The water flow drops step by step on the stepped drop aeration tower to complete aeration.

[0100] In some embodiments, the breeding tank 3 is a tank body with an open top surface, a closed bottom wall, and evenly distributed drainage holes 34 opened at the upper edge of the side wall. The water level inside it is communicated with the pond water body through the water supply system, and the sewage collection bucket 31 is located at the center of the bottom of the breeding tank 3.

[0101] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0102] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A central bottom sewage discharge agricultural and fishery coupling ecological breeding system, arranged in a pond, characterized in that: include: Floating body components, breeding tanks and planting tanks; The floating body assembly is detachably connected to the breeding tank and floats on the water surface. The bottom center of the breeding tank is connected to a downwardly concave sewage collecting bucket. The breeding trough is detachably connected to the planting trough; the planting trough is arranged in the pond and is located immediately outside the breeding trough; an aeration and oxygenation device is provided in the planting trough; It also includes sewage systems and water purification agencies; The sewage discharge system includes a sewage collection barrel, a sewage pump and a sewage pipe. The sewage pump is located in the sewage collection barrel. The sewage pipe water inlet end is connected to the sewage pump outlet end. The sewage pipe outlet end is connected to the sedimentation fermentation tank or the planting tank. The water purification mechanism is arranged in the pond and is used for purifying the water in the pond.

2. The central bottom sewage discharge agricultural and fishery coupling ecological breeding system according to claim 1 is characterized in that: The center of the top wall of the sewage collecting barrel is provided with a flow opening, and the bottom wall of the breeding trough is provided with a flow hole corresponding to the flow opening. The top wall of the sewage collecting barrel has a protruding edge eave toward the center, which is fastened and tightly fitted to the bottom wall of the breeding trough by fasteners, so that the sewage collecting barrel is connected to the breeding trough, and a recessed flow channel is formed at the connection between the sewage collecting barrel and the breeding trough, and the water bodies inside the breeding trough and the sewage collecting barrel are completely isolated from the surrounding water bodies.

3. The central bottom sewage discharge agricultural and fishery coupling ecological breeding system according to claim 1 is characterized in that: The floating body assembly includes a plurality of floating bodies and fixing parts; A plurality of the floating bodies are connected end to end to form a "U-shaped" floating body frame, and the upper edge of the breeding tank is fixedly connected to the "U-shaped" floating body frame through the fixing member.

4. The central bottom sewage discharge agricultural and fishery coupling ecological breeding system according to claim 3 is characterized in that: A circle of water retaining curtain is arranged along the inner edge of the floating body frame.

5. According to claim 4, a central bottom sewage discharge agricultural and fishery coupling ecological breeding system is characterized in that: Also includes: Sedimentation fermentation tank; The precipitation fermentation tank is arranged between the breeding tank and the planting tank; The outlet end of the sewage pipe is connected to the sedimentation fermentation tank; A plurality of the floating bodies are connected end to end to form a "U-shaped" floating body frame, and a fixing piece is used in the sedimentation fermentation tank to fix the upper edge of the sedimentation fermentation tank with the "U-shaped" floating body frame; A circle of water retaining curtain is arranged along the inner edge of the floating body frame.

6. According to claim 5, a central bottom sewage discharge agricultural and fishery coupling ecological breeding system is characterized in that: The aeration and oxygenation device is arranged in the sedimentation and fermentation tank; The bottom of the sedimentation fermentation tank is provided with a second sewage collecting bucket, a second sewage pump and a second sewage pipe; The second sewage pump is fixed at the bottom of the second sewage collecting barrel; The water inlet end of the second sewage pipe is connected to the outlet end of the second sewage pump, and the outlet end of the second sewage pipe is connected to the dry fermentation tank on the shore for further treatment and resource utilization; The supernatant in the precipitation fermentation tank flows into the planting tank through the connecting pipe; The water body inside the sedimentation fermentation tank is completely isolated from the surrounding water body.

7. According to claim 5, a central bottom sewage discharge agricultural and fishery coupling ecological breeding system is characterized in that: A plurality of weights are hung at the bottom of the water retaining curtain.

8. The central bottom sewage discharge agricultural and fishery coupling ecological breeding system according to claim 1 is characterized in that: A plurality of floating planting boards are arranged in the planting trough, and openings are arranged in the floating planting boards; plants are planted in the openings, and the plant roots extend into the water body inside the planting trough.

9. The central bottom sewage discharge agricultural and fishery coupling ecological breeding system according to claim 1 is characterized in that: A water supply mechanism is installed in the pond; the water supply mechanism includes a water supply pump and a water supply pipe; the water supply pump is located in the water body outside the pond or the large water surface and as far away from the breeding tank as possible, so that when the water flows between the water supply pump and the breeding tank, the flow distance is as long as possible, so that the water can be fully purified; the water inlet end of the water supply pipe is connected to the water supply pump, and the water outlet end of the water supply pipe is connected to the stepped waterfall oxygenation tower at the center of the breeding tank.

10. The central bottom sewage discharge agricultural and fishery coupling ecological breeding system according to claim 9 is characterized in that: The water supply mechanism also includes a second water supply pump and a second water supply pipe; The second water supply pump is located in the planting trough, the water inlet end of the second water supply pipe is connected to the second water supply pump, and the water outlet end of the second water supply pipe is connected to the second stepped waterfall oxygenation tower at the center of the sedimentation fermentation tank.

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