CN212035496U - System is supported temporarily to slim fish - Google Patents

Abstract

The utility model provides a temporary breeding system for slimming fish, which comprises a protein separation device, a culture tank, a pump assembly, a general water inlet pipe and a general drainage pipe; the protein separation device comprises at least two serially connected protein separators, and the protein separation The device includes a cylinder body, and the cylinder body is provided with a water inlet pipe and a water outlet pipe; the water outlet pipe and the water outlet pipe between the adjacent protein separators are connected by a pump assembly; it also includes a microporous oxygenation device and a microorganism adsorption part. Through the integrated arrangement of a complete set of protein separation devices, the utility model can effectively purify the water inside the culture pond, improve the sewage and sewage collection capacity, realize the recycling of water, save water resources, and reduce the cost of drainage; Oxygen uniformity, reduce pathogenic bacteria in aquatic environment, and improve the yield and quality of aquatic products.

Description

A system for temporarily raising slimming fish

technical field

The utility model belongs to the technical field of aquaculture equipment, in particular to a temporary breeding system for slimming fish.

Background technique

In recent years, with the expansion of fish farming area and the continuous advancement of technology, the growth rate of fish is getting faster and faster, but the edible taste of fish is much inferior to that of wild fish. Excessive feeding of whole nutrient feeds, fish growth-promoting hormones and the abuse of fish medicines, fish neither need to swim to find food nor contract fish diseases and naturally eliminate fish with poor physique.

"Slimming fish" is a process in which commercial fish with thick abdomens grown in conventional ponds are put into flowing clean water for starvation treatment for several months to achieve rapid weight loss. The commercial fish after "slimming" has the characteristics of bright body color, strong physique, no mud smell, less fat, less drug residue, good taste and good quality. Usually, "slimming" mainly includes three steps: selection of adult fish, recuperation in ponds (cages/barrels), and temporary "slimming" in clear water. In the process of "slimming", the requirements for the breeding environment are high, especially for the water quality and the content of dissolved oxygen in the water. The aquaculture ponds in the prior art generally adopt decentralized temporary cultivation, and the environmental conditions of each temporary cultivation pond are uneven. , most of them can not meet the requirements of the temporary breeding conditions of slimming fish.

Utility model content

In view of this, the present utility model provides a temporary breeding system specially aimed at the breeding of thin fish, aiming at the breeding characteristics of thin fish, the utility model greatly improves the degree of integration of breeding, can realize unified water transfer, and ensure the breeding water It is clean and suitable for large-scale slimming fish farming.

The technical scheme of the present utility model is:

A temporary breeding system for slimming fish is characterized in that it comprises a protein separation device, a breeding tank, a pump assembly, a general water inlet pipe, and a general drainage pipe;

The protein separation device comprises at least two protein separators connected in series, the protein separator comprises a cylinder body, a water inlet pipe is arranged below the cylinder body, and a jet assembly is arranged at the connection between the water inlet pipe and the cylinder body, The upper part of the cylinder body is provided with a backwash pipe, and one end of the backwash pipe is connected with the water inlet pipe; the cylinder body is provided with a water outlet pipe on one side of the jet assembly; The water outlet pipe is connected with the water outlet pipe through a pump assembly; the backwashing pipe is provided with a valve, which can adjust the water volume of the backwashing treatment according to the protein content of the water body.

The return pipe of the utility model, when the protein concentration of the circulating water is relatively high, returns the circulating water whose protein is not completely separated to the water inlet pipe for secondary purification and improves the effect of protein separation. The water outlet pipe arranged on one side of the jet assembly can send the circulating water after protein separation treatment to the next step of protein separation and purification.

The water outlet pipe of the protein skimmer located at the end along the water inlet direction is connected with the general water inlet pipe through the pump assembly;

The water inlet pipe of the protein skimmer located at the front end along the water inlet direction is connected with the main drain pipe through the pump assembly;

The general water inlet pipe is connected with a water inlet pipe, and the water inlet pipe is connected with the culture pond; in order to ensure that the water flow rate of each water inlet pipe is consistent, the flow valve of the prior art can be set in the water inlet pipe to adjust, or the Pump components are added in different areas of the main water inlet pipe to increase the rear water pressure.

Preferably, in the present invention, the optimal water intake ratio of aquaculture circulating water and fresh water is 1-3:1, which not only saves water sources, but also meets the breeding requirements of slimming fish.

The jet assembly of the utility model includes a plurality of jets in the prior art, the jets are composed of a nozzle, a suction chamber and a diffuser pipe, and are a multi-purpose aeration method developed by utilizing the principle of jet negative pressure. Unique mixing chamber design, strong water flow and air mixing jet, make the stirring uniform and complete, the generated bubbles are many and delicate, and the oxygen dissolution efficiency is high.

Further, the water inlet pipe opens upward in the cylinder body, which can ensure that the air bubbles generated by the ejector move upward, and send the foam adsorbed with dirt to the upper part of the cylinder body.

The upper part of the culturing pond is provided with an upper drainage pipe fitting, and the lower part of the cultivating pond is provided with a lower drainage pipe fitting, and the upper drainage pipe fitting and the lower drainage pipe fitting are respectively connected with the general drainage pipe, and the water in the culturing pond can be drained through the general drainage pipe. It is sent to the protein separation device for circulating purification, and one end of the general drainage pipe is connected with a general water outlet through a pump assembly, and drainage and water exchange can be realized through the general water outlet.

Further, one end of the general water inlet pipe is connected with a water source through the pump assembly, which can provide fresh water source for the culture pond; one end of the general water inlet pipe is drained by the pump assembly.

Further, the horizontal section of the top of the cylinder is trapezoidal, the top of the cylinder is connected with an upper sewage pipe, the top of the cylinder is provided with a sewage collection chamber, the upper sewage pipe is arranged in the sewage collection chamber, and the sewage collection A sewage branch pipe is arranged on one side of the sewage chamber, and a lower sewage pipe is arranged below the cylinder.

The foam after adsorbing the dirt can be discharged into the sewage collection chamber through the upper sewage pipe, and then flow out through the sewage branch pipe, and the lower sewage pipe can discharge the sewage with relatively large quality. Preferably, the dirt collection chamber has an upper opening structure.

Further, the upper part of the cylinder body is provided with an air outlet pipe, which can adjust the pressure inside the cylinder body, so as to prevent the internal pressure from being too large and blowout from the upper sewage pipe.

Further, it also includes a sewage collection tank, an upper sewage main pipe, and a lower sewage main pipe. The sewage branch pipe is connected with the upper sewage main pipe, and the lower sewage pipe is connected with the lower sewage main pipe; the upper sewage main pipe and the lower sewage main pipe are respectively connected by pumps. The assembly is connected to the sewage collection tank. Through this setting, the sewage can be collected and discharged after the next process treatment, which meets the safety and environmental protection discharge standards and avoids environmental pollution.

Further, a flow guide assembly is provided in the cylinder, and the flow guide assembly can be realized by any existing technology, such as the guide tube used in the Chinese patent "CN201320401165, Protein Separator". The diversion assembly enables the internal circulation of the gas-water mixture in the cylinder, thereby prolonging the gas-water contact time and greatly increasing the treatment efficiency.

Further, the upper part of the cylinder body is provided with a visual window, which can observe the reaction inside the cylinder body in real time and determine whether to clean and maintain it.

The protein separator of the utility model, through the action of the jet component and the internal guide component, utilizes the principle that the surface of the air bubbles in the water absorbs various granular dirt and soluble organic matter mixed in the water, and generates a large number of air bubbles through the jet component. Preliminarily purify the aquaculture water, these bubbles are all concentrated on the water surface to form foam, and the foam adsorbed with dirt is collected in the container on the water surface, and it will be turned into a turbid liquid and discharged to the upper sewage pipe.

The protein separator of the utility model has a simple structure, and can quickly and effectively remove impurities such as fish excrement and fish scale protein in the aquaculture water, preventing them from being further decomposed into ammonia nitrogen that is toxic to living organisms; at the same time, due to the full mixing of gas and water, the contact area is large. The amount of dissolved oxygen in the water is greatly increased, which is very beneficial to fish farming; it also has the effect of regulating the PH value of water quality.

Further, the upper drainage pipe includes a water inlet portion and a drainage portion that are integrally connected, and the water inlet portion and the drainage portion are connected obliquely. Through the inclined setting of the water inlet, the inclination angle of the water inlet can be adjusted according to the height of the liquid level of the aquaculture pond, so that the upper drainage pipe can control the water level and discharge the pollutants floating on the water surface.

Further, a microporous oxygenation device is also included, and the microporous oxygenation device includes air pressure equipment, metal pipe racks, and nanotubes, and the metal pipe racks are respectively connected with the air compression equipment and the nanotubes.

Further, the microporous oxygen-enhancing device includes at least two layers of nanotubes arranged on a metal tube frame in an annular disk. The oxygen content of each water layer is more uniform and sufficient.

Through the metal tube frame, on the one hand, the nanotubes can be fixed, and on the other hand, the stable connection with the air pressure equipment can be ensured, so as to achieve the effect of sufficient oxygenation.

In the microporous oxygenation device of the utility model, the nanotubes disperse the air in the form of microbubbles into the water body, and the formed microbubbles gradually float up from the bottom of the pool; under the action of the high oxygen partial pressure of the gas, the bubbles fully dissolve the oxygen into the water body The bubbles rise to form the water flow rotation and up and down flow, and the water with high dissolved oxygen in the upper layer is brought into the lower water body. It has the advantages of a wide range of oxygen-enhancing areas and uniform distribution of dissolved oxygen, increasing the dissolved oxygen at the bottom, accelerating the oxidation of ammonia nitrogen, nitrite and hydrogen sulfide at the bottom, and inhibiting the growth of harmful microorganisms at the bottom. Rotation and up-and-down flow bring the harmful gas at the bottom out of the water surface, which helps to improve the water quality conditions in the aquaculture pond and reduces the occurrence of diseases.

Further, a fixed snap ring is provided on the side of the culturing pond, the fixed snap ring is connected with a microorganism adsorption member, the microorganism adsorption member includes a fixed portion, and a rope is connected above the fixed portion, and the rope is connected with the fixed snap ring. In matching connection, an adsorption part is provided under the fixed part, and a microbial preparation layer is provided on the surface of the adsorption part, and the microbial preparation layer is a prior art microbial preparation adsorbed on the surface of the adsorption part.

Further, the adsorption part is a polyurethane bio-based carrier or a polypropylene bio-based carrier, the utility model occupies a large space in the water body, has a huge surface area for microorganisms to attach, and can provide a large amount of living space for microorganisms. The adsorption part can also be realized by any prior art bio-based carrier.

By setting the microbial adsorbent, it can provide long-term microbial preparation supply for the water body. The living microorganisms in the microbial preparation layer can use harmful substances to achieve their own growth, and at the same time repair the degraded aquaculture water ecosystem, reduce pathogenic bacteria in the aquatic environment, and improve water quality. Product yield and quality, and low cost, no secondary pollution. At the same time, the microbial adsorbent can be replenished, cleaned and maintained by pulling the rope, which is simple and convenient to use.

Further, the culturing pond is a cement culturing pond. The area of the culture pond is 30-50 square meters. A partition net is arranged above the culturing pond, and the fish are placed to jump out of the culturing pond due to excessive stress response.

Aiming at the breeding characteristics of slimming fish, the utility model provides a temporary breeding system specially aimed at breeding slimming fish. Through the integrated setting of a complete set of protein separation devices, the water inside the breeding tank can be effectively purified, and the sewage collection capacity can be improved. It is convenient for unified water transfer, realizes the recycling of water, saves water resources, and reduces the cost of drainage; through the microporous oxygenation device, the oxygen supply effect is high, and the uniformity of oxygenation in the water body can be maintained, which helps to improve the water quality conditions in the aquaculture pond; Combined with microbial adsorption parts, it can maintain and restore the aquaculture water ecosystem, reduce pathogenic bacteria in the aquatic environment, and improve the yield and quality of aquatic products. Through this whole set of combinations, the integrated large-scale farming of slimming fish is provided.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the partial structure schematic diagram of the present utility model;

Fig. 3 is the partial structure schematic diagram of the utility model;

FIG. 4 is a schematic diagram of a partial structure of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

A temporary breeding system for slimming fish is characterized in that it includes a protein separation device 10, a culture tank 2, a pump assembly 3, a general water inlet pipe 4, and a general drainage pipe 5;

The protein separation device comprises at least two protein separators 1 connected in series, the protein separator comprises a cylinder body 11, a water inlet pipe 12 is arranged below the cylinder body, and the connection between the water inlet pipe and the cylinder body is provided with a water inlet pipe 12. The jet assembly 13, the upper part of the cylinder is provided with a backwash pipe 14, and one end of the backwash pipe is connected to the water inlet pipe; the cylinder is provided with a water outlet pipe 15 on one side of the jet assembly; the adjacent The water outlet pipe and the water outlet pipe between the protein separators are connected by a pump assembly; the backwash pipe is provided with a valve 141, which can adjust the amount of water for backwash treatment according to the protein content of the water body.

The return pipe of the utility model, when the protein concentration of the circulating water is relatively high, returns the circulating water whose protein is not completely separated to the water inlet pipe for secondary purification and improves the effect of protein separation. The water outlet pipe arranged on one side of the jet assembly can send the circulating water after protein separation treatment to the next step of protein separation and purification.

The water outlet pipe of the protein skimmer located at the end along the water inlet direction is connected with the general water inlet pipe through the pump assembly;

The water inlet pipe of the protein skimmer located at the front end along the water inlet direction is connected with the main drain pipe through the pump assembly;

The general water inlet pipe is connected with a water inlet pipe 41, and the water inlet pipe is connected with the cultivating pond; in order to ensure that the water flow of each water inlet pipe is consistent, the flow valve of the prior art can be set in the water inlet pipe for adjustment, or through Add pump components in different areas of the main water inlet pipe to increase the rear water pressure.

Preferably, in the present invention, the optimal water intake ratio of aquaculture circulating water and fresh water is 1-3:1, which not only saves water sources, but also meets the breeding requirements of slimming fish.

The jet assembly of the utility model includes a plurality of jets in the prior art, the jets are composed of a nozzle, a suction chamber and a diffuser pipe, and are a multi-purpose aeration method developed by utilizing the principle of jet negative pressure. Unique mixing chamber design, strong water flow and air mixing jet, make the stirring uniform and complete, the generated bubbles are many and delicate, and the oxygen dissolution efficiency is high.

Further, the water inlet pipe opens upward in the cylinder body, which can ensure that the air bubbles generated by the ejector move upward, and send the foam adsorbed with dirt to the upper part of the cylinder body.

The upper part of the culturing pond is provided with an upper drainage pipe 21, and the lower part of the cultivating pond is provided with a lower drainage pipe 22. The upper drainage pipe and the lower drainage pipe are respectively connected with the general drainage pipe 5, and the culture can be drained through the general drainage pipe. The water in the pool is sent to the protein separation device for circulating purification, and one end of the general drainage pipe is connected with a general water outlet through the pump assembly, and drainage and water exchange can be realized through the general water outlet.

Further, one end of the general water inlet pipe is connected with a water source through the pump assembly, which can provide fresh water source for the culture pond; one end of the general water inlet pipe is drained by the pump assembly.

Further, the horizontal section of the top of the cylinder body is trapezoidal, the top of the cylinder body is connected with an upper sewage pipe 111, the top of the cylinder body is provided with a sewage collection chamber 16, and the upper sewage pipe is arranged in the sewage collection chamber. A sewage branch pipe 161 is arranged on one side of the sewage collection chamber, and a lower sewage pipe 112 is arranged below the cylinder.

The foam after adsorbing the dirt can be discharged into the sewage collection chamber through the upper sewage pipe, and then flow out through the sewage branch pipe, and the lower sewage pipe can discharge the sewage with relatively large quality. Preferably, the dirt collection chamber has an upper opening structure.

Further, the upper part of the cylinder body is provided with an air outlet pipe 113, which can adjust the pressure inside the cylinder body, so as to prevent the internal pressure from being too large and blowout of the upper sewage pipe.

Further, it also includes a sewage collection tank 6, an upper sewage main pipe 7, and a lower sewage main pipe 8. The sewage branch pipe is connected with the upper sewage main pipe, and the lower sewage pipe is connected with the lower sewage main pipe; the upper sewage main pipe and the lower sewage main pipe are connected. They are respectively connected to the sewage collection tank through the pump assembly. Through this setting, the sewage can be collected and discharged after the next process treatment, which meets the safety and environmental protection discharge standards and avoids environmental pollution.

Further, a flow guide assembly (not marked) is provided in the cylinder, and the flow guide assembly can be realized by any existing technology, so that the gas-water mixture in the cylinder can realize internal circulation, thereby prolonging the gas-water contact. time, so that the processing efficiency is greatly increased.

Further, the upper part of the cylinder body is provided with a visual window 17, which can observe the reaction situation inside the cylinder body in real time and determine whether to clean and maintain.

The protein separator of the utility model, through the action of the jet component and the internal guide component, utilizes the principle that the surface of the air bubbles in the water absorbs various granular dirt and soluble organic matter mixed in the water, and generates a large number of air bubbles through the jet component. Preliminarily purify the aquaculture water, these bubbles are all concentrated on the water surface to form foam, and the foam adsorbed with dirt is collected in the container on the water surface, and it will be turned into a turbid liquid and discharged to the upper sewage pipe.

The protein separator of the utility model has a simple structure, and can quickly and effectively remove impurities such as fish excrement and fish scale protein in the aquaculture water, preventing them from being further decomposed into ammonia nitrogen that is toxic to living organisms; at the same time, due to the full mixing of gas and water, the contact area is large. The amount of dissolved oxygen in the water is greatly increased, which is very beneficial to fish farming; it also has the effect of regulating the PH value of water quality.

Further, the upper drainage pipe 21 includes a water inlet portion 211 and a drainage portion 212 that are integrally connected, and the water inlet portion and the drainage portion are connected obliquely. Through the inclined setting of the water inlet, the inclination angle of the water inlet can be adjusted according to the height of the liquid level of the aquaculture pond, so that the upper drainage pipe can control the water level and discharge the pollutants floating on the water surface.

Further, a microporous oxygenation device 9 is also included, and the microporous oxygenation device includes an air pressure device 91, a metal tube frame 92, and a nanotube 93, and the metal tube frame is respectively connected with the air compression device and the nanotube.

Further, the microporous oxygen-enhancing device includes at least two layers of nanotubes arranged on a metal tube frame in an annular disk. The oxygen content of each water layer is more uniform and sufficient.

Through the metal tube frame, on the one hand, the nanotubes can be fixed, and on the other hand, the stable connection with the air pressure equipment can be ensured, so as to achieve the effect of sufficient oxygenation.

In the microporous oxygenation device of the utility model, the nanotubes disperse the air in the form of microbubbles into the water body, and the formed microbubbles gradually float up from the bottom of the pool; under the action of the high oxygen partial pressure of the gas, the bubbles fully dissolve the oxygen into the water body The bubbles rise to form the water flow rotation and up and down flow, and the water with high dissolved oxygen in the upper layer is brought into the lower water body. It has the advantages of a wide range of oxygen-enhancing areas and uniform distribution of dissolved oxygen, increasing the dissolved oxygen at the bottom, accelerating the oxidation of ammonia nitrogen, nitrite and hydrogen sulfide at the bottom, and inhibiting the growth of harmful microorganisms at the bottom. Rotation and up-and-down flow bring the harmful gas at the bottom out of the water surface, which helps to improve the water quality conditions in the aquaculture pond and reduces the occurrence of diseases.

Further, a fixed snap ring 23 is provided on the side of the culture pond, and the fixed snap ring is connected with a microorganism adsorption member 24. The microorganism adsorption member includes a fixed portion 241, and a rope 242 is connected above the fixed portion. It is matched and connected with the fixing clasp, an adsorption part 243 is arranged under the fixing part, and a microbial preparation layer (not marked) is arranged on the surface of the adsorption part, and the microbial preparation layer is the prior art microbial preparation adsorbed on the surface of the adsorption part .

Further, the adsorption part is a polyurethane bio-based carrier or a polypropylene bio-based carrier, and in particular, the adsorption part can also be realized by any existing technology.

By setting the microbial adsorbent, it can provide long-term microbial preparation supply for the water body. The living microorganisms in the microbial preparation layer can use harmful substances to achieve their own growth, and at the same time repair the degraded aquaculture water ecosystem, reduce pathogenic bacteria in the aquatic environment, and improve water quality. Product yield and quality, and low cost, no secondary pollution. At the same time, the microbial adsorbent can be replenished, cleaned and maintained by pulling the rope, which is simple and convenient to use.

Further, the culturing pond is a cement culturing pond. The area of the culture pond is 30-50 square meters. A partition net is arranged above the culturing pond, and the fish are placed to jump out of the culturing pond due to excessive stress response.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be realized by any existing technology.

Claims (10)

1. A temporary rearing system for slim fishes is characterized by comprising a protein separation device, a rearing pond, a pump assembly, a main water inlet pipe and a main water outlet pipe;

the protein separation device comprises at least two protein separators which are connected in series, each protein separator comprises a barrel, a water inlet pipe is arranged below each barrel, a jet assembly is arranged at the joint of each water inlet pipe and each barrel, a backwashing pipe is arranged at the upper part of each barrel, and one end of each backwashing pipe is connected with the water inlet pipe; a water outlet pipe is arranged on one side of the jet flow component of the cylinder body; the water outlet pipe and the water outlet pipe between the adjacent protein separators are connected through a pump assembly;

the water outlet pipe of the protein separator positioned at the tail end along the water inlet direction is connected with the main water inlet pipe through a pump assembly;

the water inlet pipe of the protein separator positioned at the front end along the water inlet direction is connected with the main water discharge pipe through a pump assembly;

the main water inlet pipe is connected with a water inlet branch pipe, and the water inlet branch pipe is connected with the culture pond;

the water supply device is characterized in that an upper water drainage pipe is arranged on the upper portion of the culture pond, a lower water drainage pipe is arranged on the lower portion of the culture pond, the upper water drainage pipe and the lower water drainage pipe are respectively connected with a main water drainage pipe, and one end of the main water drainage pipe is connected with a main water outlet through a pump assembly.

2. The temporary lean fish rearing system according to claim 1, wherein a horizontal cross section of a top of the tank body is trapezoidal, an upper sewage discharge pipe is connected to the top of the tank body, a sewage collection chamber is arranged on the top of the tank body, the upper sewage discharge pipe is arranged in the sewage collection chamber, a sewage discharge branch pipe is arranged on one side of the sewage collection chamber, and a lower sewage discharge pipe is arranged below the tank body.

3. The temporary rearing system for the slim fishes of claim 2, further comprising a sewage collecting tank, an upper sewage discharge main pipe and a lower sewage discharge main pipe, wherein the sewage discharge branch pipe is connected with the upper sewage discharge main pipe, and the lower sewage discharge pipe is connected with the lower sewage discharge main pipe; the upper sewage discharge main pipe and the lower sewage discharge main pipe are respectively connected with the sewage collecting tank through the pump assembly.

4. The temporary lean-body fish rearing system according to claim 1, wherein a flow guide assembly is provided in the cylinder.

5. The temporary thin fish rearing system according to claim 1, wherein the upper drainage pipe comprises an inlet part and a drainage part which are integrally connected, and the inlet part and the drainage part are obliquely connected.

6. The temporary lean-body fish culture system according to claim 1, further comprising a microporous oxygenation device, wherein the microporous oxygenation device comprises an air compression device, a metal pipe frame and a nanotube, and the metal pipe frame is connected with the air compression device and the nanotube respectively.

7. The temporary lean fish rearing system according to claim 6, wherein the microporous oxygenation device comprises at least two layers of nanotubes which are annularly coiled on a metal pipe frame, and the metal pipe frame and the nanotubes are arranged in a rearing pond.

8. The temporary slim fish rearing system according to claim 1, wherein a fixing clasp is arranged beside the rearing pond, a microorganism adsorbing member is connected to the fixing clasp, the microorganism adsorbing member comprises a fixing portion, a rope is connected to the upper portion of the fixing portion, the rope is connected to the fixing clasp in a matching manner, an adsorbing portion is arranged below the fixing portion, and a microorganism preparation layer is arranged on the surface of the adsorbing portion.

9. The temporary lean fish rearing system according to claim 8, wherein the adsorption section is a polyurethane bio-based carrier or a polypropylene bio-based carrier.

10. The temporary lean-body fish culture system according to claim 1, wherein the culture pond is a cement culture pond, and the area of the culture pond is 30-50 square meters.

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