CN106719256A - Racetrack high density fish and vegetable symbiotic system - Google Patents

Abstract

The invention provides a track-type high-density fish and vegetable symbiosis system, which belongs to the field of breeding systems. After the water is treated in the wastewater purification area, it is pumped to the hydroponic tank by the water pump, and then flows back from the hydroponic tank to the rotary track-type breeding pond to form a cycle. The water exchange rate is very low, basically realizing "zero water exchange", solving the problem 1. The problem of large planting area and low space utilization rate; saving construction cost and construction difficulty; reducing manual maintenance in daily use; solving the problem of low breeding density in the aquaponics system; solving the problem of existing aquaponics The system cannot realize the problem that cold-water fish and vegetables cannot have both.

Description

Runway-style high-density fish and vegetable symbiosis system

technical field

The invention provides a track-type high-density fish and vegetable symbiosis system, which belongs to the field of breeding systems.

Background technique

In recent years, the rise of facility fishery based on intensive farming conforms to the current trend of fishery development and is a new economic growth point for the sustained and steady development of fishery. Intensive recirculating aquaculture technology is the most concentrated representative of high-tech fishery technology. It has the advantages of saving electricity, water, land, and less pollution. Aquaculture production is not restricted by regional climate, high resource utilization rate, high-quality and safe products, and disease-free. It has achieved high yield, high return and high benefit, which is the development direction of world fishery. The United States, France, Denmark, Japan and other countries began to develop recirculating aquaculture technology in the 1960s, and developed rapidly in the late 1980s. At present, they have achieved scale, standardization and automation, entered the era of industrialization, and gradually developed to unmanned Responsible for the development of fish farming factories, the U.S. government has listed factory fish farming as "one of the top ten best investment projects".

my country's recirculating aquaculture technology started late. Compared with the technology-intensive closed recirculating water fish farming in advanced countries, there is a big gap in terms of equipment, technology, output, benefits and aquaculture sewage treatment technology. Therefore, adopting a variety of measures and means to reduce energy consumption, reduce pollution emissions or even "zero emissions", and reduce production and operation costs are necessary measures for the development and promotion of my country's recirculating aquaculture model in the future.

Existing recirculating aquaculture systems are mostly equipped with multiple or even dozens of aquaculture ponds. Dozens of aquaculture ponds are arranged in the workshop, and passages need to be reserved, which occupy a large area and have low space utilization, especially for the upper space of fish ponds Utilization is basically zero;

The layout and installation of the inlet and outlet pipes in the many aquaculture ponds of the existing circulating aquaculture system is complicated, and the construction cost and difficulty are relatively large;

The daily maintenance and cleaning of the breeding pond also requires a lot of manpower;

Since the content of nitrate and other substances in the aquaculture water body continues to rise, certain water changes have to be performed to reduce the concentration of nitrate and other substances in the system.

Most of the existing fish and vegetable symbiosis systems are low-density farming, and the breeding density is lower than 25kg/m ³

The existing high-density aquaponics system has a complex structure and fails to make full use of the upper space;

The existing high-density fish and vegetable symbiosis system lacks sterilization and disinfection links, and cannot effectively prevent the occurrence of water body diseases.

The existing high-density fish and vegetable symbiosis system is only suitable for breeding common fish species, and lacks necessary constant temperature measures for cold-water fish and shrimp.

The microbial decomposition device of the existing high-density aquaponics system has too low decomposition efficiency for organic pollutants.

Contents of the invention

The purpose of the present invention is to provide a track-type high-density aquaponics symbiosis system, which has a very low water exchange rate, basically realizes "zero water exchange", solves the problems of large area occupied by breeding ponds and planting areas and low space utilization rate; saves construction Cost and construction difficulty; reduce manual maintenance in daily use; solve the problem of low breeding density in the aquaponics system; solve the problem that the existing aquaponics system cannot achieve both cold-water fish and vegetables.

The track-type high-density fish and vegetable symbiosis system described in the present invention is provided with a revolving track-type aquaculture pond, a support is installed above the revolving track-type aquaculture pond, and a hydroponic tank is installed on the support, and the water in the revolving track-type aquaculture pond is purified by waste water After the area is treated, it is pumped to the hydroponic tank by the water pump, and then flows back to the rotary track-type culture pond from the hydroponic tank to form a cycle.

In the track-type high-density fish and vegetable symbiosis system, a groove A is provided at the end of the turning track-type culture pond, and a drainage joint for draining and sewage pipes is arranged at the bottom of the groove A.

In the track-type high-density fish and vegetable symbiosis system, a 1% slope is set in the turning track-type culture pond along the water flow direction.

In the track-type high-density aquaponics symbiosis system, a water retaining edge is set on the turning track-type culture pond.

In the track-type high-density fish and vegetable symbiosis system, the waste water purification area includes a microfiltration machine, a moving bed biofilm purification pool, and an ultraviolet sterilizing pool, and the microfiltration machine, the moving bed biofilm purification pool, and the ultraviolet sterilizing pool are separated by a separation net. , the water flows through the microfiltration machine, the moving bed biofilm purification tank and the ultraviolet sterilizing tank in turn, and then is pumped into the hydroponic tank by the water pump.

In the track-type high-density fish and vegetable symbiosis system, the moving bed biofilm purification tank is filled with porous annular packing,

In the track-type high-density fish and vegetable symbiosis system, oxygen-filled stones are laid on the bottom of the moving bed biofilm purification tank.

In the track-type high-density fish and vegetable symbiosis system, a groove B is provided at the bottom of the ultraviolet sterilizing pool, and drainage and sewage insertion pipes are embedded in the bottom of the groove B, and the drainage and sewage insertion pipes are connected with the main drainage and sewage drainage insertion pipes.

In the track-type high-density fish and vegetable symbiosis system, the hydroponic tanks on the upper layer are connected to the hydroponic tanks on the lower layer through vertical drainage pipes, and the adjacent hydroponic tanks on the same layer are connected through connecting pipes. There is an outlet pipe connected to the water pump on the top of the cultivation tank, and a flow control valve is set on the outlet pipe to discharge the water to the hydroponic tank. The water pipe is located at the starting point of the revolving track-type breeding pond and is provided with a horizontal jet port, which sprays water into the revolving track-type breeding pond.

In the track-type high-density aquaponics system, an exhaust pipe is arranged on the vertical drain pipe.

Compared with the prior art, the present invention has beneficial effects as follows:

The track-type high-density fish and vegetable symbiosis system, the present invention combines the recirculating aquaculture system with the aquaculture system to solve the high water exchange rate caused by the continuous increase of pollutant concentration in the traditional recirculating aquaculture system, Basically achieve "zero water change", the roots of plants in the hydroponic tank can purify the water, and the inorganic substances in fish excrement can promote the growth of plants;

The rotary track type breeding pond buried in the ground is adopted to make full use of the underground space,

The hydroponic area is set above the breeding pond, and the upper space of the system can be perfectly utilized;

The hydroponic area is equipped with three layers of hydroponic tanks, the upper part is equipped with a vine climbing area, the first layer is planted with vines and sun-loving vegetables, the second layer is planted with common vegetables, and the third layer is planted with shade-tolerant vegetables, making full use of the light in the upper space condition;

The hydroponic tank forms a return flow between the first, second and third layers, which reduces the number of water pipelines in the system as much as possible; the breeding pond is buried in the ground and a thickened hydroponic tank is used to facilitate water heat preservation, and at the same time A porous floating plate with a thickness of 25mm is covered to isolate the light and keep the water temperature constant; the waste water is firstly filtered and separated by a microfilter to reduce the concentration of pollutants in the water body and reduce the purification load of the moving bed biofilm purification tank; the moving bed is adopted The biofilm purification tank is filled with porous annular packing to treat the aquaculture wastewater, which optimizes the living environment of microorganisms and improves the treatment efficiency of the purification tank; the main return pipe sprays water to the aquaculture tank through the horizontal jet port to complete the water circulation and improve the quality of the aquaculture tank. The water flow rate is high, which improves the breeding environment; the fish breeding density can reach more than 40kg/ ^m3 ; the ultraviolet sterilization and disinfection link is added to effectively prevent the occurrence of water body diseases. The diverter valve is used to reduce the pressure of the water diversion pipeline, and the diverted water is used to increase the water flow rate of the culture pond. The daily maintenance and cleaning of the system can be completed by one person; not only common fish can be cultured, but cold-water fish can also be cultured; the track-type culture pond is also suitable for shrimp culture, and the effect is obvious.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is a top view of the present invention;

Fig. 4 is the schematic diagram of the structure of the revolving track type culture pond;

Fig. 5 is the top view of the revolving track type culture pond;

Fig. 6 is the front view of the present invention;

Fig. 7 is a schematic diagram of the structure of the present invention.

In the figure: 1. Revolving track-type breeding pond; 10. General drainage and sewage pipe; 11. Drainage and sewage intubation; 2. Microfiltration machine; 21. Overflow sewage pipe; 3. Moving bed biofilm purification tank; 31. Porous annular packing; 32. Partition net; 33. Movable cover plate; 4. Ultraviolet sterilizing pool; 41. Ultraviolet sterilizing lamp tube; 5. Submersible pump; 51. Outlet pipe; , diverter valve; 6, hydroponic tank; 61, vertical drain pipe; 611, exhaust pipe; 612, connecting pipe; 62, main return pipe; 63, branch return pipe; 64, horizontal jet port; plate; 7, three-dimensional support; 71, support plate; 9, oxygen-filled stone.

detailed description

Below in conjunction with the present invention, the embodiment of the present invention will be further described:

Embodiment 1: As shown in Figures 1-7, the track-type high-density fish and vegetable symbiosis system according to the present invention includes a three-dimensional support 7 on the ground. Pool 1, the roundabout track type breeding pool 1 is "U" shape, the breeding pool is buried underground to facilitate water heat preservation, the three-dimensional support is set above the breeding pool, and the upper space of the system can be used perfectly; the upper edge of the breeding pool is provided with a 20cm high water retaining edge, The water retaining edge is located on the ground, which is used to block the dirty water on the ground and prevent the dirty water from flowing into the aquaculture pond. The bottom of the aquaculture pond is set with a slope of 1% along the flow direction, so that the water can wash away the waste in the fish pond to the end of the aquaculture pond, and the end of the aquaculture pond Set a 20cm deep conical groove to accumulate waste; pre-buy the drainage joint of the drainage and sewage intubation pipe 11 at the bottom of the conical groove; the drainage joint is connected with the variable diameter tee on the main drainage and sewage pipe 10; The drainage and sewage pipes are deeply buried under the breeding pond;

The drainage and sewage plug-in pipe adopts a cannula structure, and its height is slightly higher than the liquid level of the culture pond. When the system needs to temporarily drain, drain or even empty, just unplug the drainage and sewage intubation;

The middle vacant part of the "U"-shaped revolving track type culture pond is a waste water purification area, and the waste water purification area is separated from the revolving runway type culture pond by a wall; the waste water purification area first adopts a microfilter 2 to preliminarily decontaminate the waste. solid-liquid separation, the microfilter is a screen filter that intercepts fine suspended matter, and the waste accumulated in the conical groove at the end of the culture pond is transported to the microfilter by using the overflow sewage pipe 21 to complete Preliminary filtering. The preliminary filtration and separation of the microfiltration machine reduces the concentration of pollutants in the water body and reduces the purification load of the moving bed biofilm purification tank;

The water initially filtered by the microfilter flows into the moving bed biofilm purification tank 3 through the separation net 32, and the inside of the moving bed biofilm purification tank 3 is filled with porous annular packing 31 accounting for 1/3 of the total volume of the moving bed biofilm purification tank , the porous annular filler is a biofilm carrier with a density close to that of the water body, used for microbial attachment and growth; the porous annular filler can increase the microbial mass and microbial species in the purification tank, thereby improving the microbial treatment efficiency of the purification tank, making a variety of The microorganisms decompose the organic waste suspended in the water body into small molecular organic matter and inorganic salts, etc., for plant growth and absorption; the bottom of the moving bed biofilm purification tank is laid with an oxygen-filled stone 9, and the oxygen-filled stone is connected to an air pump, and the air pump is installed at the same The system is in a sound-proof room to prevent noise from affecting the normal growth of fish. When the air pump is inflated, the oxygen-filled stone will generate an updraft in the water, which can completely mix the porous annular packing with water and form a boiling fluidized state. The environment for microbial growth is Gas, liquid and solid three phases optimize the living environment of microorganisms and improve the treatment effect of the moving bed biofilm purification tank; the collision and shearing action of the porous annular filler in the water makes the bubbles smaller and increases the utilization rate of oxygen Greatly strengthen the nitrification function and purification capacity of the system; a tapered groove is set in the middle of the bottom of the moving bed biofilm purification tank to store untreated waste, and the bottom of the moving bed biofilm purification tank is pre-buried for drainage and sewage intubation 11 , is connected with the total drainage and sewage pipe 10 deeply buried in the bottom of the roundabout raceway type culture pond;

The water purified by the moving bed biofilm purification tank flows into the ultraviolet sterilizing pool 4 through the separation net 32, and several ultraviolet sterilizing lamp tubes 41 are placed in the ultraviolet sterilizing pool for the sterilization and disinfection of the water body; the bottom of the ultraviolet sterilizing pool is provided with a cone Groove, in order to accumulate the waste that does not fully treat, the bottom pre-buried drainage and sewage intubation 11, joins with the total drainage and sewage pipe 10 that is deeply buried below the culture pond;

A water pump is placed on the side of the ultraviolet sterilizing pool, and the water pump is a submersible pump 5. The submersible pump is connected to a water outlet pipe 51, and the water is lifted to the hydroponic tank 6 on the third floor of the three-dimensional brackets 7 on both sides, that is, the uppermost water. Cultivate the upper edge of the tank, control the water flow rate by the flow regulating valve 52 on the water outlet pipe; the water outlet pipe is provided with a shunt pipe 53 and a shunt valve 54 at the top of the culture pond, which are used for water flow diversion and pipeline step-down; the shunt pipe 53 and The total return pipe 62 is connected to each other, and the water is sprayed to the culture pond through the horizontal jet port 64, so as to complete the water body circulation and increase the water flow rate in the culture pond, so as to improve the culture environment;

The three-dimensional support 7 divides the space into three layers by the support plate 71, and the top of the three-dimensional support is a vine climbing area; the hydroponic tank 6 is placed on the top of the support plate, and the top of the hydroponic tank has a cover thickness of 25mm, and the opening diameter The 40mm porous floating plate 65 and the auxiliary sponge are used to fix the root system of the plant to ensure the upward growth of the plant, and can isolate the light and keep the water temperature constant; the hydroponic tanks of each layer are connected through the connecting pipe 612, and the water supply flows, and the upper and lower layers are hydroponic The grooves are connected by a vertical drain pipe 61 for water flow; the vertical connecting pipe discharges the gas in the pipeline through the exhaust pipe 611 to prevent the pipeline from overflowing due to air blockage; the hydroponic tank is in the first, second, The hydroponic tank on the third support plate forms a return flow through the connecting pipe 612 and the vertical drain pipe 61, and finally merges into the main return pipe 62 through the branch return pipe 63, and sprays water to the culture pond through the horizontal jet port 64, Complete water circulation and increase the water flow rate in the aquaculture pond to improve the aquaculture environment;

Several movable cover plates 33 are laid on the top of the wastewater purification area as passages for operators to make full use of the upper space.

The three-layer hydroponic tank is set on the three-dimensional support, and the upper part is provided with a vine climbing area. The first layer is planted with vines and sun-loving vegetables, the second layer is planted with common vegetables, and the third layer is planted with shade-tolerant vegetables, making full use of the upper space. lighting conditions;

Said hydroponic tank forms a return flow between the first, second and third layers, which reduces the number of water pipelines in the system as much as possible.

Claims (10)

1. a kind of racetrack high density fish and vegetable symbiotic system, it is characterised in that be provided with convolution runway recognition pond (1), convolution is run Road formula culturing pool (1) top is provided with support, and water planting groove (6) is provided with support, the water warp in convolution runway recognition pond (1) After crossing the treatment of purification of waste water area, water planting groove (6) is pumped to by water pump, then convolution runway recognition pond is flowed back to by water planting groove (6) (1) circulation, is formed.

2. racetrack high density fish and vegetable symbiotic system according to claim 1, it is characterised in that convolution runway recognition pond (1) end is provided with groove A, and groove A bottoms are provided with the drainage joint of draining blowdown intubation (11).

3. racetrack high density fish and vegetable symbiotic system according to claim 2, it is characterised in that convolution runway recognition pond (1) 1% gradient is set along water (flow) direction.

4. racetrack high density fish and vegetable symbiotic system according to claim 3, it is characterised in that convolution runway recognition pond (1) dash along is set on.

5. racetrack high density fish and vegetable symbiotic system according to claim 4, it is characterised in that purification of waste water area includes micro- Filter (2), moving-bed biofilm clarifier-tank (3) and ultraviolet sterilization pond (4), Microfilter (2), moving-bed biofilm clarifier-tank (3) it is spaced by separate mesh (32) and ultraviolet sterilization pond (4) between, current pass sequentially through Microfilter (2), moving-bed biofilm After clarifier-tank (3) and ultraviolet sterilization pond (4) treatment, pumped in water planting groove (6) by water pump.

6. racetrack high density fish and vegetable symbiotic system according to claim 5, it is characterised in that moving-bed biofilm is purified Filling porous annular filler (31) in pond (3).

7. racetrack high density fish and vegetable symbiotic system according to claim 6, it is characterised in that moving-bed biofilm is purified Pond (3) inner bottom part lays the stone (9) that fills oxygen.

8. racetrack high density fish and vegetable symbiotic system according to claim 7, it is characterised in that ultraviolet sterilization pond (4) Inner bottom part is provided with groove B, and the pre-buried draining blowdown intubation (11) in groove B bottoms, draining blowdown intubation (11) is inserted with total draining blowdown Pipe (11) connection.

9. racetrack high density fish and vegetable symbiotic system according to claim 8, it is characterised in that upper strata water planting groove (6) with Connected by vertical drainage pipe (61) between lower floor's water planting groove (6), pass through communicating pipe in same layer between adjacent water planting groove (6) (612) connect, water planting groove (6) top of the superiors is provided with the outlet pipe (51) be connected with water pump, setting on outlet pipe (51) Water is expelled to the flow regulating valve (52) of water planting groove (6), undermost water planting groove (6) is communicated to and is arranged at convolution runway recognition pond (1) the total return pipe (62) in, total return pipe (62) is provided with horizonally projected jet mouthful positioned at convolution runway recognition pond (1) starting point (64) it is, that water spray feed is interior to runway recognition pond (1) that circles round.

10. racetrack high density fish and vegetable symbiotic system according to claim 9, it is characterised in that vertical drainage pipe (61) It is provided with blast pipe (611).