CN219330436U - Pond accurate-set pollution discharge efficient ecological fish culture system - Google Patents

Abstract

The utility model relates to the field of facility aquaculture, and discloses a high-efficiency ecological fish culture system with precise sewage collection in a pond, which comprises a culture tank arranged in the pond, a support frame and a sewage drainage system, wherein the support frame is arranged at the periphery of the culture tank; the sewage disposal system comprises a fish closestool, a sewage disposal pipe and a sewage disposal vertical shaft, wherein the fish closestool is arranged at the bottom of the cultivation tank; the sewage drain pipe and the sewage drain vertical shaft are arranged in the pond, one end of the sewage drain pipe is fixedly connected and communicated with the fish toilet, and the other end of the sewage drain pipe is communicated with the sewage drain vertical shaft. The utility model has simple structure, simple and convenient operation, can realize accurate pollution discharge, is safe and environment-friendly, and has high economic benefit.

Description

Pond accurate-set pollution discharge efficient ecological fish culture system

Technical Field

The utility model relates to the field of facility aquaculture, in particular to a high-efficiency ecological fish culture system with precise sewage collection in a pond.

Background

The pond fish culture is the most common culture mode, and has the advantages of small investment, large income, easy control of water environment, suitability for family culture and the like. In general pond fish culture, feeding main fish and water-purifying fish such as flowers, silver carps and the like are mixed and cultured in a pond, excrement of the main fish is discharged into the pond without being treated separately, and pool water eutrophication is easy to cause, so that water quality is deteriorated, and a large amount of water quality improver is needed at the moment, so that the discharge of the culture tail water is difficult to reach the standard; in addition, the problems of contradiction between main and secondary fish culture and water competition, low culture yield, inconvenient fishing operation, difficult bird damage prevention, high electricity and medicine cost and the like exist in the fish culture in the pond. The problems are very unfavorable to the normal development and growth of the cultured products, and the production efficiency and the benefit of the pond fish culture are easy to be low.

In order to solve the problems, a plurality of researches are carried out on a pond fish culture system in the field, and the recently rising technology of pond internal circulation culture or runway fish culture is a mature high-density culture mode. In the technology of pond internal circulation culture or runway fish culture, a plurality of culture water tanks are arranged on one side of the pond, main fish culture is collected in the tanks for culture and growth, and pond water is in a circulation flow state. Organic impurities such as fish feces are discharged out of the pond by a sewage suction device arranged at the tail part of the culture water tank or are recycled after being filtered by a physical method.

The Chinese patent with the publication number of CN109673543A discloses a seawater pond facility culture system, which comprises at least two ponds, wherein the ponds comprise a fish high-density culture unit and a shellfish culture unit, the shellfish culture unit is arranged in the ponds, three strip-shaped running water culture tanks are formed at the joint of any two adjacent ponds, water pushing equipment is arranged at one end of each running water culture tank, and the water pushing equipment is connected with an oxygenation system.

Chinese patent publication No. CN101766138A discloses a circulating water culture system and application thereof, which mainly circulates water between fish culture ponds and crab culture ponds through water inlet channels and water outlet channels, and purifies water quality by arranging a tail water purifying area, planting aquatic plants and the like in the tail water purifying area.

The Chinese patent with publication number of CN105660487A discloses a concentrated fish culture system and method for circulating running water in a fresh water pond, wherein a solid waste filtering treatment area such as fish feces is mainly arranged in the pond, and pond water circulates in the pond.

The methods related to the patent all have the problems of high requirements on ponds, narrow application range, complex process structure, high fixed investment cost, unsatisfactory pollution discharge effect, increased difficulty in water quality control and the like. Therefore, there is a need in the art to develop new farming systems to meet the increasingly stringent requirements of economic, social and ecological development.

Disclosure of Invention

The utility model aims to provide an efficient ecological fish culture system for accurately collecting pollution discharge in a pond, which has the advantages of simple structure, simplicity and convenience in operation, safety, environmental protection and high economic benefit, and can realize accurate pollution discharge.

The technical scheme adopted for solving the technical problems is as follows:

the high-efficiency ecological fish culture system with the precise sewage collection and the sewage discharge in the pond comprises a culture tank arranged in the pond, a support frame and a sewage discharge system, wherein the support frame is arranged at the periphery of the culture tank; the sewage disposal system comprises a fish closestool, a sewage disposal pipe and a sewage disposal vertical shaft, wherein the fish closestool is arranged at the bottom of the cultivation tank; the sewage drain pipe and the sewage drain vertical shaft are arranged in the pond, one end of the sewage drain pipe is fixedly connected and communicated with the fish toilet, and the other end of the sewage drain pipe is communicated with the sewage drain vertical shaft;

the sewage disposal system also comprises a water pressure regulating pipe, wherein the water pressure regulating pipe is fixed on the sewage disposal pipe between the sewage disposal vertical shaft and the fish toilet; the port at the upper end of the water pressure regulating pipe is not lower than the highest water storage level of the fish pond;

the tail end of the blow-down pipe leading into the blow-down vertical shaft is also provided with a blow-down insertion pipe which is fixed at the tail end of the blow-down pipe through an elbow turning connecting piece; the top end ports of the sewage vertical shaft and the sewage insertion pipe are not lower than the highest water storage level of the fish pond.

The culture tank is a square body in a shape of a pot bottom, is manufactured by scraping cloth by a knife, has proper size of 5m multiplied by 5m or 6m multiplied by 6m, and has the height of more than 1/2 of the depth of pool water; the bottom is in a shape of a pan bottom, the periphery of the bottom is inclined towards the center, the bottom of the pan is embedded with 0.5m, and the depth of the bottom of the pan is preferably embedded with fish manure so as to be convenient for collecting the fish manure towards the center of the pan bottom; the upper and lower openings of the tank body are tied up on the supporting frame, and the central opening of the pan bottom is fixed on a special facility 'fish toilet' for collecting and discharging sewage, so that the culture tank is fully unfolded and shaped.

The support frame can be welded by adopting DN60 and DN32 galvanized steel pipes. The specific operation is as follows: setting one upright post at four corners of the culture tank, and driving DN60 angle steel into the bottom of the tank for 2m, wherein the height of the upright post is equal to the height of the pond ridge; the upright posts are welded with each other by steel pipes according to the horizontal direction of the edges of the groove body, so that each group of steel frames form a whole; the top horizontal frame is welded with a circle of steel pipes with the same specification around the outer edge by DN60 and extends outwards for 0.5m, the middle of the water body is welded with the DN32 steel pipes for the bottom support pipe, and the top horizontal frame is used for fixedly supporting the oxygenation aeration pipe of the culture tank knife scraping and oxygenation system, and does not extend outwards to the upright post.

Further, a culture net cage is also arranged in the culture tank.

Further, the aerator comprises a fan, an air supply pipe and an aeration pipe; the air outlet of the fan is connected with an air supply pipe which is fixedly connected with the oxygenation aeration.

Further, the method also comprises a pedestrian trestle connecting the culture tank and at least one side pond ridge.

Further, the number of the culture tanks is more than one group, each group is two culture tanks, and the culture tanks are respectively arranged at two sides of the pedestrian trestle.

The utility model solves the technical problems by adopting the principle that: under the condition of not changing the original pond structure of the common pond, a culture tank is erected in the pond; a sewage collecting and discharging device is arranged at the bottom of the cultivation tank pan and is used for accurately collecting and discharging fish feces in time, so that accumulation of the fish feces in the pond is greatly reduced; oxygen-increasing aeration pipes are arranged at the bottom of the culture tank or around the tank body support frame in the water layer; placing a net cage in the culture tank to concentrate the feeding main fish to be cultured in the tank, and discharging purified water fish such as flowers, silver carps and the like outside the tank; and (5) sprinkling the compound microecological preparation to regulate water regularly for cultivation.

The utility model has the beneficial effects that: the utility model has simple structure, simple and convenient operation, can realize accurate pollution discharge, is safe and environment-friendly, and has high economic benefit. The system of the utility model can save fixed investment, has fast fish growth and high fish survival rate, and can greatly improve the labor production efficiency of cultivation yield; the cost of medication, electricity consumption and the like can be reduced, the tail water discharge is reduced, and the problems of contradiction such as water contention, food contention and the like between main and secondary fish culture, fishing, bird damage prevention and the like are effectively solved. The aquaculture by adopting the system of the utility model has the characteristics of concentration, high efficiency, ecology and the like, and the ecological, social and economic benefits are organically unified.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:

FIG. 1 is a schematic plan view of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;

fig. 3 is a schematic diagram of the main structural framework of the system of the present utility model.

In the figure: 1. a cultivation tank; 2. oxygen aeration pipe; 3. a support frame; 4. a sewage disposal system; 401. a fish bowl; 402. a blow-down pipe; 403. a sewage discharging vertical shaft; 404. a water pressure regulating pipe; 5. a cultivation net cage; 6. pedestrian trestle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

As shown in fig. 1-3, the high-efficiency ecological fish culture system with the precise pollution discharge collection in the pond comprises a culture tank 1 arranged in the pond, a support frame 3 and a pollution discharge system 4, wherein the support frame 3 is arranged at the periphery of the culture tank 1; the sewage disposal system 4 comprises a fish toilet 401, a sewage disposal pipe 402 and a sewage disposal vertical shaft 403, wherein the fish toilet 401 is arranged at the bottom of the culture tank 1; the drain pipe 402 and the drain vertical shaft 403 are both arranged in the pond, one end of the drain pipe 402 is fixedly connected and communicated with the fish toilet 401, and the other end is communicated with the drain vertical shaft 403.

The culture tank 1 is a square body in a pot bottom shape, is manufactured by scraping cloth by a knife, has proper size of 5m multiplied by 5m or 6m multiplied by 6m, and has the height of more than 1/2 of the depth of pool water; the bottom is in a shape of a pan bottom, the periphery of the bottom is inclined towards the center, the bottom of the pan is embedded with 0.5m, and the depth of the bottom of the pan is preferably embedded with fish manure so as to be convenient for collecting the fish manure towards the center of the pan bottom; the upper and lower openings of the tank body are tied up on the supporting frame, and the central opening of the pan bottom is fixed on a special facility 'fish toilet' for collecting and discharging sewage, so that the culture tank is fully unfolded and shaped.

The supporting frame 3 can be welded by adopting DN60 and DN32 galvanized steel pipes. The specific operation is as follows: four corners of the culture tank 1 are provided with one upright post, DN60 angle steel is used for driving the bottom of the pond for 2m, and the height of the pool is equal to the height of the pond ridge; the upright posts are welded with each other by steel pipes according to the horizontal direction of the edges of the groove body, so that each group of steel frames form a whole; the top horizontal frame is welded with a circle of steel pipes with the same specification around the outer edge by DN60 and extends outwards for 0.5m, the middle of the water body is welded with the DN32 steel pipes for the bottom support pipe, and the top horizontal frame is used for fixedly supporting the oxygenation aeration pipe of the culture tank knife scraping and oxygenation system, and does not extend outwards to the upright post.

Further, as shown in fig. 1 and 2, the sewage system 4 further includes a water pressure regulating pipe 404, and the water pressure regulating pipe 404 is fixed on the sewage pipe 402 between the sewage vertical shaft 403 and the fish toilet 401.

The purpose of the water pressure regulating pipe 404 is to prevent the tank body from being torn due to unbalanced internal and external pressures of the culture tank 1. The water pressure regulating pipe 404 is fixed in place on the drain pipe 402 by a three-way connector, and for convenience of operation, the present utility model is preferably fixed on the drain pipe 402 near one end of the support frame 3.

The water pressure regulating pipe 404 is made of PVC pipe, the lower end of the water pressure regulating pipe is fixed on the pipeline of the drain pipe 402 through a three-way connecting piece, the matching part of the drain pipe 402 and the three-way connecting piece is movably connected, and particularly, interference fit or screw thread fit and the like can be adopted, so that the water pressure regulating pipe 404 can be conveniently inserted or pulled up on the drain pipe 402 easily. Because the pond water is relatively deep, an interference fit is preferred for ease of operation. The upper end port of the water pressure regulating pipe 404 is not lower than the highest water storage level of the fish pond; when water is injected or drained from the pond, the adjusting pipe is required to be pulled up, so that the effect of adjusting the pressure balance of the water in the cultivation groove 1 and the water outside the groove is achieved, and the situation that the groove body is torn due to unbalanced internal and external pressure of the cultivation groove 1 is avoided; the fish feces is always kept inserted, and the fish feces and pond water are ensured to enter the sewage draining pipe from the 'fish toilet' during sewage draining, so that the sewage is thoroughly drained.

Further, as shown in fig. 1, a drain pipe is further provided at the end of the drain pipe 402 leading into the drain vertical shaft 403, and the drain pipe is fixed at the end of the drain pipe 402 by an elbow turning connector.

In the utility model, the top end ports of the drain vertical shaft 403 and the drain insertion pipe are not lower than the highest water storage level of the fish pond, and the drain insertion pipe and the drain pipe 402 have the same specification; the sewage drainage insertion pipe can be made into two sections, namely an upper sewage drainage insertion pipe and a lower sewage drainage insertion pipe. The lower blowdown intubate passes through elbow diversion connecting piece fixed connection with the blow off pipe 402 end, and the upper end of lower blowdown intubate is higher than about 40cm of breed groove 1 upper mouth, is less than pond water deep 80-100cm, guarantees to have enough water pressure to extrude pond water and fish excrement to pass through blowdown intubate in the blowdown vertical shaft 403, and the guarantee even forgets to insert the blowdown intubate after the blowdown simultaneously also can keep pond water to have enough degree of depth, prevents to empty pond water and makes fish and breed groove 1 cell body impaired.

The upper drain insertion pipe is movably connected with the lower drain insertion pipe, such as interference fit or screw fit, so that the upper drain insertion pipe is convenient to easily insert or pull up on the lower drain insertion pipe. Because the pond water is relatively deep, an interference fit is preferred for ease of operation. When in sewage disposal, the upper sewage disposal insertion pipe is lifted, after the upper sewage disposal insertion pipe is lifted, the lower sewage disposal insertion pipe and pool water form water pressure difference, fish manure is pressed out along with water flow and enters the sewage disposal vertical shaft 403; in addition, a drain pipe connected to an external drain is provided in the drain shaft 403, and pool water and fish manure discharged into the shaft are discharged out of the pool through the drain pipe.

Further, as shown in fig. 2, a cultivation net cage 5 is further disposed in the cultivation tank 1. The aquaculture net cage 5 is arranged in the aquaculture tank 1, so that the wind and wave resistance in water can be improved, and in addition, if the box is anoxic, the net cage is convenient to move integrally. And the net is sunned by the culture net box 5 to remove attachments conveniently. The culture net cage 5 adopts a polyethylene or nylon net cage, the size of the net cage is consistent with that of the culture tank 1, the depth of the net cage is 0.5m, and the upper and lower four corners of the box body are fully unfolded and fixed on the support frame 3.

Further, as shown in fig. 1 and 3, the aerator further comprises an aerator system, wherein the aerator system comprises a fan, an air supply pipe and an aerator pipe 2; the air outlet of the fan is connected with an air supply pipe which is fixedly connected with the oxygenation aeration, and the air supply pipe and the oxygenation aeration can pass through a connecting hose. The fan can be a three-blade Roots fan or a vortex fan or two-phase combination, is arranged at the bank of the pond and is connected with the nano oxygenation aeration pipe for air supply through an air supply pipeline and the like; the model specification and the number of fans are determined according to the number of the culture tanks, and the number of the fans is one; can supply air in parallel in a single tank or multiple tanks. The air supply pipe is closed loop formed by PE pipe network, the plurality of culture tanks or the plurality of culture ponds are air supply units, adjacent units are connected and communicated, and gate valves are arranged, so that air supply is facilitated to be mutually or independently carried out; the air supply pipeline is communicated with one corner of each cultivation channel steel frame, and the pagoda head with the switch is arranged to supply air to each cultivation groove through the connecting hose. The connecting hose is communicated with a nano oxygenation aeration pipe for aeration oxygenation, and the aeration pipe is fixed in the bottom of the tank body or on a water middle layer support steel frame.

Further, as shown in fig. 1, the cultivation method further comprises a pedestrian trestle 6 connected with the cultivation groove 1 and at least one side pond ridge. The purpose of setting up the people's hand 6 is for the convenient operation, can lay the grid board on people's hand 6, again install the slide rail on it. The slide rail can bear the pulley, and each pond manufacturing pulley is not less than one.

Further, as shown in fig. 1, the number of the culture tanks 1 is more than one, each group comprises two culture tanks 1, the two culture tanks 1 are respectively arranged at two sides of the pedestrian trestle 6, and the two culture tanks 1 of each group are symmetrically arranged at two sides of the pedestrian 6. The space between the two groups of culture tanks is 0.4-0.6 m, and the distance between the two groups of culture tanks 1 connected with the direction of the pedestrian trestle 6 is 0.8-1.2 m; grid plates can be paved between the frames at the top end of the culture tank 1, so that personnel can pass through and operate the culture tank conveniently. In the utility model, each 2-3 groups of fish closestools 401 under the culture tank 1 can share one sewage draining pipe 402, so that centralized sewage draining is realized.

One specific application of the utility model is as follows:

1. integral structure of system

(1) Placing the fish culture system at the center of the pond so as to be beneficial to the full exchange of pond water and the full utilization of the pond water; the fish culture system selects ponds with water depth of 2-4 m and area of more than 2 mu for carrying out; a group of culture tanks are arranged in each mu, two or three groups of culture tanks are taken as a group, and a certain distance is reserved between the groups according to the length and width of the pond, so that the water bodies inside and outside the tanks can be fully exchanged; two groups of culture tanks are arranged in a shape of a Chinese character 'tian' (refer to the shape arranged at the position marked with A in figure 1), and one group of culture tanks with the area of singular is arranged in a shape of a double 'mu' with three groups of culture tanks (refer to the shape arranged at the position marked with B in figure 1).

(2) A plurality of fans are connected in parallel to form closed-loop air supply, so that the air pressure balance of each culture tank can be fully ensured, and the aeration is full. Each fan is provided with one check valve to prevent the fan from being damaged, and other fans normally work to supply air back flow and air leakage.

(3) The aeration oxygenation is used as a main oxygenation mode, so that the fish growth requirement is met, and even if the air is cut off for a long time, the normal fish requirement can be met through the exchange of oxygen supply through the water body inside and outside the net cage.

(4) The support frame is mainly made of steel, is quick to construct, is convenient to dismantle simultaneously, and can be recycled.

(5) The fish farming system is provided with the pedestrian trestle and the transportation facility, is convenient and safe to operate, and can quickly and laborsaving input and fish.

2. Cultivation mode

(1) The fish culture system mainly cultures the fed fishes in the inner box of the culture tank for concentrated culture, and the feces of the fish culture system naturally subside and are accurately collected by the culture tank, so that the feces can be discharged in time and cannot be accumulated in the tank; the fishing operation is simple, the net cage is lifted, the labor intensity is greatly reduced, and the production efficiency is improved; meanwhile, the contradiction between the primary and secondary fish culture for food and water space is effectively solved.

(2) Pure water fishes such as flowers, silver carps and the like are bred outside the net cage of the culture tank, and meanwhile, the compound microecological preparation is sprayed regularly, so that the water quality of the pond water can be ensured to be excellent. The system can apply the external medicine without splashing in the whole pond, and the dosage can be properly increased according to the calculation of the water body in the net cage in the culture tank, so that the accurate medicine application and splashing in the net cage can be realized, and the dosage and the cost can be reduced.

(3) The fish manure can be discharged after the sewage is discharged for 2 to 3 times per day and the sewage is discharged for a short time.

(4) The novel water tank can keep a certain amount of novel injection for a long time, and redundant pond water enters the culture tank, the fish toilet, the drain pipe and the drain insertion pipe overflow port in the vertical shaft from the outside of the net cage, so that the pond water in the tank is replaced frequently.

(5) The greenhouse can be built on part of ponds, which is favorable for early throwing and intensively cultivating fish seeds in early spring, and when the water temperature of the open-air ponds is stabilized above 20 ℃, the fish seeds can be continuously cultivated in other ponds, and the fish seeds can be cultivated in the same year, so that the cultivation period is shortened, and the cultivation risk and cost are reduced.

3. System advantage

(1) The fish farming system does not need to install bird prevention facilities in a whole pond, and can effectively prevent birds or prevent birds from shading by only covering a net on a net cage or installing a shading net on a steel frame, so that the fish farming and ecological protection can coexist in a harmonious manner, and the investment is greatly reduced.

(2) The fish farming system has simple structure and wide application. The fish culture system is a combined fish culture system, adopts steel materials as main materials and has a frame structure, and after the welding is completed in the mode, a water and sewage draining facility, a culture tank, an oxygenation facility, a culture net cage and the like are installed, and after the fish culture system is cleaned and disinfected, pool water is filled, so that fish culture can be started. The method has the characteristics and advantages of simple process structure, quick construction, low fixed investment (2-3 yuan per jin of fish in one-time fixed asset depreciation) and recycling; the method can be implemented in ponds with more than 2 mu without changing the original pond structure or changing a large amount of water, has wide application range, and is particularly suitable for scattered cultivation of one family in vast rural areas, and is used as an efficient fish-farming mode method for construction of 'one country one article'.

(3) The fish culture system has accurate pollution discharge, safety and ecology. The cultivation groove is used for holding the cultivation net cage, accurately receiving naturally-sunk fish manure and collecting the naturally-sunk fish manure in the bottom pot-shaped central area or depositing the naturally-sunk fish manure in the fish toilet, and when in sewage discharge, the upper section of sewage discharge insertion pipe can be easily pulled up to discharge the fish manure by water pressure and water flow. The drainage cannula is arranged in more than two sections, so that the situation that the cannula is forgotten to drain pond water due to great work intention can be prevented, and the safety of fish can be maintained; the water pressure regulating pipe is arranged, and the water pressure regulating pipe is pulled up when water is injected and drained from the pond, so that the culture tank body made of soft material knife cloth can be prevented from being torn due to unbalanced internal and external water pressure, and the safety of the tank body is ensured; each fan is provided with a check valve and a plurality of fans are connected in parallel to form a network for supplying air, so that the damage of part of fans can be prevented, and the air supply is influenced; the main raising feeding fish is concentrated in the inner box of the culture tank for cultivation, pollution discharge is accurately collected, the main raising feeding fish and the water-purifying fish outside the tank form an independent ecological system of the pond together, the water quality is excellent, even if the air is cut off for a long time due to damage of a fan or air leakage or power failure of a pipeline and the like, normal requirements of the fish can be met through exchange of oxygen supply of water bodies inside and outside the net tank, and the safety and the fish quality of the system are greatly improved. The discharged feces are collected in a concentrated way and then reused, and the discharged tail water is discharged or recycled for reuse after reaching the standard through ecological wetland treatment.

(4) The fish culture system is simple and convenient to operate, and is efficient and economical. The fish farming system has the advantages that the material and the product can be quickly moved in and out, so that the labor is saved; screening and sorting boxes, and selling and catching only need to lift the net box to be aimed at, and other boxes are not affected; the external medicine is sprayed only by spraying on the steel frame; the sewage discharge only needs to easily pull up the uppermost insertion pipe; the cannula is pulled off during drainage; meanwhile, the yield is doubled, and one person or more than one person can finish the management of 40 culture tanks. The operations of the above are completed by only one person or a small number of people at present of shortage of manpower, so that the labor is efficiently saved, and the cost is reduced. Under the conditions of the same water surface, the same number of people, the same electricity cost and the like, the output is doubled.

Practical implementation case

The fish farming system is applied to catalpa seed farms of ecological three gorges fishery stock limited companies in Chongqing, 21 mouths of fish ponds are improved by two batches in sequence, 156 culture tanks are built, three-blade Roots fans are installed, 6 three-blade Roots fans are respectively communicated with vortex fans in parallel networking, and air supply and oxygenation are carried out in 3 areas. The method is characterized in that the method is firstly completed in 2021 in 2 months and 13 days to reform 12 mouths of a pond, 54 culture tanks are built, a greenhouse is built on the pond, and large-size fingerling cultivation and adult fish cultivation of the micropterus salmoides are developed. When the water temperature in the first reconstruction fish pond is 14.5 ℃ in the 3 months of 2021, 79 ten thousand tails of average 251-head excellent bass 3 fish fries are put in about 3200 jin, concentrated cultivation is carried out for 85 days until the average 25-head fish fries are obtained, the weight is increased by about 8 times to about 28500 jin and 71.5 ten thousand tails are increased, the bait coefficient is 0.95, and the survival rate is 90.5%. And (3) putting 18-24 fish seeds 990 jin 20585 cultured in 6 culture tank net cages built in 1-mouth 2.8 mu fish pond for adult fish culture on day 13 of 2021, wherein the average specification reaches 0.15 jin, the survival rate is approximately 100%, and the bait coefficient is 0.98, so that the adult fish is cultured and sold on the market at the end of 9 months.

Compared with the conventional pond culture, the concentrated culture system has the advantages that the seed feeding amount is doubled, the water quality of the fish pond is good and stable, the fish eats, feeds and grows stably, the physique is good, the morbidity is low, and the loss is low, and the survival rate is high by accurately integrating pollution discharge and ecological prevention and control measures; the process is visual and controllable, the external disease prevention medicine has small accurate quantity and quick response, and serious diseases are not generated; daily screening divides case, outwards sells and catches convenient and fast, and two people can easily operate, can realize planned accurate fishing sales, need not that a large amount of personnel in full pond catch, saves the labour by a wide margin improves labor efficiency.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (7)

1. The efficient ecological fish culture system with the precise sewage collection and the sewage discharge in the pond comprises a culture tank (1) arranged in the pond, and is characterized by further comprising a support frame (3) and a sewage discharge system (4), wherein the support frame (3) is arranged at the periphery of the culture tank (1); the sewage disposal system (4) comprises a fish closestool (401), a sewage disposal pipe (402) and a sewage disposal vertical shaft (403), wherein the fish closestool (401) is arranged at the bottom of the culture tank (1); the sewage draining pipe (402) and the sewage draining vertical shaft (403) are arranged in the pond, one end of the sewage draining pipe (402) is fixedly connected with the fish toilet (401), and the other end of the sewage draining pipe is communicated with the sewage draining vertical shaft (403);

the sewage disposal system (4) further comprises a water pressure regulating pipe (404), and the water pressure regulating pipe (404) is fixed on the sewage disposal pipe (402) between the sewage disposal vertical shaft (403) and the fish toilet bowl (401); the upper end port of the water pressure regulating pipe (404) is not lower than the highest water storage level of the fish pond;

the tail end of a blow-down pipe (402) led into the blow-down vertical shaft (403) is also provided with a blow-down insertion pipe, and the blow-down insertion pipe is fixed at the tail end of the blow-down pipe (402) through an elbow turning connecting piece; the top end ports of the sewage vertical shaft (403) and the sewage insertion pipe are not lower than the highest water storage level of the fish pond.

2. The pond accurate sewage-collection efficient ecological fish culture system according to claim 1, wherein a culture net cage (5) is further arranged in the culture tank (1).

3. The pond precise sewage disposal high-efficiency ecological fish farming system according to claim 1 or 2, further comprising an oxygenation system comprising a fan, an air supply pipe and an oxygenation aeration pipe (2); the air outlet of the fan is connected with an air supply pipe which is fixedly connected with the oxygenation aeration pipe (2).

4. The efficient ecological fish farming system with precise pond concentration and pollution discharge according to claim 1 or 2, further comprising a pedestrian trestle (6) connecting the culture tank (1) and at least one side pond ridge.

5. A pond accurate sewage disposal efficient ecological fish farming system according to claim 3, further comprising a manway (6) connecting the farming trough (1) and at least one side pond ridge.

6. The efficient ecological fish farming system with precise and pollution-discharging pond set according to claim 4, wherein the number of the culture tanks (1) is more than one group, each group comprises two culture tanks (1), and the two culture tanks (1) are respectively arranged at two sides of a pedestrian trestle (6).

7. The efficient ecological fish farming system with precise and pollution-discharging pond set according to claim 5, wherein the number of the culture tanks (1) is more than one group, each group comprises two culture tanks (1), and the two culture tanks (1) are respectively arranged at two sides of a pedestrian trestle (6).

Images