CN114642189B - Quality improvement system for circulating type pond culture aquatic products - Google Patents

Abstract

The utility model belongs to the technical field of aquaculture, and particularly relates to a quality improving system for circulating pond cultured aquatic products. The utility model puts the aquatic products which reach the commodity specification and are cultivated into the purifying pond body unit, the purified water which is treated by aeration is placed in the pond unit, and the aquatic products are induced to move by manually manufacturing water flow with a certain flow rate, so that the excessive fat in the body is eliminated, and meanwhile, the fishy soil substances deposited in the body are metabolized out of the body. The utility model has the following advantages: through multi-stage purification effects such as precipitation, filtration, microbial decomposition, ozone oxidation, aeration and the like, peculiar smell substances such as soil malodorous substances in the dissolved water body in the purification process are effectively removed; a draft tube for generating annular water flow is arranged in the culture pond to form stable water flow stimulation and accelerate the metabolism of the excessive fat and the anabaenamine of the fish body; the buoyancy ball is arranged for adjusting the height of the honeycomb duct in the culture pond to be consistent with the water surface; and a gear linkage mechanism is arranged to prevent the flow guide pipe without the buoyancy ball from yielding water.

Description

Quality improvement system for circulating type pond culture aquatic products

Technical Field

The utility model belongs to the technical field of aquaculture, and particularly relates to a quality improving system for circulating pond culture aquatic products.

Background

The aquaculture refers to technology for cultivating fishes or various seafood in fish farms opened up by manpower on the shore, and can be divided into three categories of freshwater aquaculture, salty water aquaculture and sea surface aquaculture according to different aquaculture water quality, wherein the freshwater aquaculture technology mainly aims at freshwater fish cultivation, and the existing cultivation process is generally carried out by adopting equipment such as a fixed temporary cultivation pond and a cultivation box body, but a lot of wastes are often generated in the cultivation process of a closed space, so that the survival of the fishes is not facilitated.

China is the largest aquaculture country in the world, and the annual aquaculture of aquatic products accounts for about 70% of the global aquaculture of aquatic products, which mainly takes pond aquaculture as a main aspect. However, in the cultivation process, the water body of the pond is rich in microalgae and microorganisms, and metabolic products such as anabazole, dimethyl isoborneol, E-2-enal and other chemical substances are easy to deposit in the cultivation object body, so that the cultivated aquatic products are caused to be rich in the earthy smell, and the quality of the aquatic products is influenced. In addition, the freshwater fish cultured in the current pond eat high-energy feed, so that the abdominal fat content of the aquatic products to be marketed is too high, and the quality of the freshwater fish cultured in the pond is seriously affected.

In order to effectively remove peculiar smell substances and excessive fat in pond aquaculture aquatic products, devices for removing waste in ponds are designed in the market at present, for example, chinese patent publication No. CN209882823U, publication No. 2020-01-03 discloses a aquaculture box for freshwater fish aquaculture, the aquaculture box comprises a box body, a vent pipe, a spray head and an oxygen concentration sensor, the vent pipe is arranged in the box body, the spray head is arranged on the side face of the vent pipe, the spray head is arranged on the side, far away from the vent pipe, of the vent pipe, the oxygen concentration sensor is arranged below, a telescopic rod is arranged on the side face of the telescopic rod, and sediment accumulated at the bottom of the box body can be cleaned through the arrangement of an electric cylinder, the telescopic rod and the scraping plate.

However, the existing patent does not consider the removal of the anabaenamine purely, does not consider the reduction of fat purely, and cannot form a comprehensive effect. In addition, the removal rate of the conventional technology is generally maintained at 20% -40% through testing, and the problem that the fishy smell in the purified water body cannot be removed in time in the treatment process causes secondary adsorption of the fishy smell, so that the efficiency is low, the energy consumption is high, the quality of the pond culture aquatic products can be rapidly improved in a short time, and the taste of the fishes finally entering the market is poor.

Therefore, in order to rapidly improve the quality of the aquaculture products in the pond and reduce the problems of the anabaenamine content, the excessive fat in the abdomen and the like, it is urgently needed to develop a system for efficiently improving the quality of the aquaculture products in the freshwater pond.

Disclosure of Invention

The utility model aims to provide a quality improving system for circulating pond cultured aquatic products, which is characterized in that the pond cultured aquatic products reaching commodity specifications are placed into a pond body unit for purifying and culturing, purified water treated by aeration is placed in the pond unit, and a cultured object is forced to move by manually manufacturing water flow with a certain flow rate so as to eliminate redundant fat in a body, and meanwhile, the fishy smell substances deposited in the body are metabolized out of the body. In order to improve the utilization efficiency of the water body, the purified water body of the purified culture pond body unit is subjected to treatments such as precipitation, filtration, microbial decomposition, ozone oxidation, aeration and the like, so that the cyclic utilization is realized.

The utility model adopts the technical proposal that: the circulating type pond culture aquatic product quality improving system comprises a pond body unit for culturing aquatic products, a purifying pond unit connected to the pond body unit and used for purifying sewage discharged by the pond body unit, and a return pipe unit used for discharging the purified water of the purifying pond unit into the pond body unit again; the purifying tank unit comprises a treating tank for removing the soil odor in water through treatment modes such as precipitation, filtration, microbial decomposition, ozone oxidation, aeration and the like.

The further preferable technical scheme is as follows: the pool body unit comprises a temporary culture pool for purifying aquatic products, and a sewer pipe which is arranged at the bottom of the temporary culture pool and is used for connecting the purifying pool unit; the purification tank unit comprises an interception tank connected with the sewer pipe, a grid arranged on the interception tank and a backflushing device arranged on the interception tank and used for cleaning the grid.

The further preferable technical scheme is as follows: the water quality treatment tank is connected with the interception tank, and the purification tank unit further comprises granular activated carbon arranged in the water quality treatment tank.

The further preferable technical scheme is as follows: the purifying tank unit also comprises bacillus cereus arranged in the water quality treatment tank.

The further preferable technical scheme is as follows: the purifying tank unit also comprises an advanced oxidation tank connected with the water quality treatment tank.

The further preferable technical scheme is as follows: the purification tank unit also comprises a reservoir connected with the advanced oxidation tank; the return pipe unit comprises a return pipe for drawing water from the reservoir back to the temporary rearing pond and a water pump arranged on the return pipe and located in the reservoir.

The further preferable technical scheme is as follows: the return pipe unit also comprises a guide pipe, a telescopic pipe and a buoyancy ball, wherein the guide pipe is arranged on the return pipe and arranged along the inner side surface of the temporary culture pond, so that the water surface in the temporary culture pond is rotated in a drainage mode, the telescopic pipe is connected with the return pipe and the guide pipe, and the buoyancy ball is arranged on the guide pipe.

The further preferable technical scheme is as follows: the return pipe unit further comprises a first mounting column arranged on the guide pipe, a second mounting column arranged on the buoyancy ball and used for being connected with the first mounting column, a clamping block arranged on the first mounting column, and a clamping groove arranged on the second mounting column and used for clamping the clamping block.

The further preferable technical scheme is as follows: the return pipe unit further comprises a rotating column hole, a rotating column, a blocking door, a gear cavity, a gear hole and a toothed plate, wherein the rotating column hole is formed in the first mounting column and the guide pipe, the rotating column is inserted into the rotating column hole, the blocking door is arranged on the inner side face of the guide pipe and connected with the rotating column, the gear cavity is formed in the first mounting column and communicated with the rotating column hole, the gear is arranged on the rotating column and located in the gear cavity, the gear is arranged on the first mounting column and communicated with the gear cavity, the direction of a hole is towards the toothed plate hole of the second mounting column, the gear hole is formed in the second mounting column, and the toothed plate hole is inserted into the toothed plate hole and meshed with the gear.

The further preferable technical scheme is as follows: the return pipe unit further comprises a sliding block arranged on the guide pipe; the pool body unit also comprises a sliding groove which is arranged on the inner side surface of the temporary culture pool and is used for fixing the sliding block in a sliding manner.

The utility model has the following advantages:

firstly, through the multistage purification effect of interception pond, water quality treatment pond, advanced oxidation pond, effectively get rid of granule impurity in the water and soil stink etc. and dissolve harmful substance, reduce the fishy smell of aquatic products, improve aquatic products quality.

Secondly, a diversion pipe for generating annular water flow is arranged in the temporary culture pond, so that the flow degree in the temporary culture pond is improved, the activity of aquatic products in the culture process is increased, the fat percentage in the aquatic products is effectively reduced, and the quality of the aquatic products is further improved.

Thirdly, the buoyancy ball is arranged for adjusting the height of the diversion pipe in the temporary raising pool to be consistent with the water surface, so that the oxygen content in water can be increased while annular water flow is generated.

Fourth, the gear linkage mechanism is arranged, so that the flow guide pipe without the buoyancy ball cannot discharge water, and abnormal operation of the system is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the recirculating aquaculture system of the present utility model.

FIG. 2 is a schematic diagram of a temporary rearing pond according to the present utility model in a top view.

FIG. 3 is a schematic diagram of the connection between the flow guiding pipe and the return pipe and the installation position of the buoyancy ball according to the present utility model.

Fig. 4 is a schematic view showing a structure in which a barrier door is opened in the present utility model.

Fig. 5 is a schematic view showing a structure of the barrier door in a closed state in the present utility model.

Fig. 6 is a schematic structural view of the second mounting post mounted on the first mounting post according to the present utility model.

Fig. 7 is a schematic structural diagram of a meshing mode of a toothed plate and a gear in the utility model.

In the drawings, the components represented by the respective reference numerals are as follows: the device comprises a tank body unit 1, a purifying tank unit 2, a return pipe unit 3, a temporary raising tank 101, a sewer pipe 102, a sliding groove 103, an interception tank 201, a grid 202, a backflushing device 203, a water quality treatment tank 204, granular activated carbon 205, an advanced oxidation tank 206, a reservoir 207, a return pipe 301, a water pump 302, a guide pipe 303, a telescopic pipe 304, a buoyancy ball 305, a first mounting column 306, a second mounting column 307, a clamping block 308, a clamping groove 309, a rotating column hole 310, a rotating column 311, a blocking door 312, a gear cavity 313, a gear 314, a toothed plate hole 315, a toothed plate 316 and a sliding block 317.

Detailed Description

The following description is of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model.

Examples: as shown in fig. 1 to 7, a quality improvement system for recirculating aquaculture in a pond comprises a pond body unit 1 for quality improvement and purification, a purification pond unit 2 for purifying sewage discharged from the pond body unit 1, and a return pipe unit 3 for re-discharging the purified water from the purification pond unit 2 into the pond body unit 1; the purifying tank unit 2 comprises a water quality treatment tank 204 for removing the soil odor element in water by an adsorption mode and microbial degradation.

In this embodiment, the "circulation" refers to that water in the circulation type pond culture aquatic product quality improving system circulates reciprocally through the tank body unit 1, the purifying tank unit 2 and the return pipe unit 3 to form running water, so that peculiar smell substances metabolized by fish bodies in the process can be timely removed by the purifying tank unit 2, the effect of hanging and culturing aquatic products such as fish by using clear water is achieved, the final quality of the aquatic products is improved, and as no organic matters exist in the water for culturing the fish, the fish is always in a starvation state in the culturing process, fat in the fish body can be consumed, the fat content in the fish body after the fish enters the market is lower, and the taste is better.

In addition, water resources for cultivating fish are excessively consumed, and if new water is directly discharged after pollution, it causes great water resource waste, and thus the purification tank unit 2 is provided at one side of the tank unit 1 for purifying sewage discharged from the tank unit 1 and is returned to the tank unit 1 through the return pipe unit 3 after purification.

The operation mode of the aquatic breeding system in this embodiment is as follows: firstly, injecting enough purified water into the pond body unit 1, and then throwing fishes to be cultivated into the pond body unit 1 for hanging cultivation; secondly, starting the purifying tank unit 2 to purify the water containing the fish discharged pollutants and the anabaenamine in the tank body unit 1; thirdly, the water purified by the purifying tank unit 2 flows back to the tank body unit 1 through the return pipe unit 3, and the circulation of water resources is completed.

The pool body unit 1 comprises a temporary rearing pool 101 for temporarily rearing aquatic products, and a sewer pipe 102 which is arranged at the bottom of the temporary rearing pool 101 and is used for connecting the purifying pool unit 2; the purification tank unit 2 includes an interception tank 201 connected to the sewer pipe 102, a grill 202 provided on the interception tank 201, and a backflushing device 203 provided on the interception tank 201 and used for cleaning the grill 202.

In this embodiment, the waste water discharged from the temporary rearing pond 101 firstly removes the pollutants with larger particles, such as the scraps on the fish body, the feces discharged from the fish during temporary rearing, etc., through the grating 202, however, after long running, more and more waste on the grating 202 can cause the blockage of the grating 202, and then the back flushing device 203 capable of moving up and down is arranged behind the grating 202, the back flushing device 203 can flush water towards the grating 202 against the water flow, so that a part of the dirt attached to the grating 202 along with the water flow is flushed to the bottom of the interception pond 201, and finally, the waste water is removed by manual salvaging.

The water treatment tank 204 is connected with the interception tank 201, and the purification tank unit 2 further comprises granular activated carbon 205 arranged in the water treatment tank 204.

In this embodiment, after the sewage is purified by the grid 202, part of toxic substances and volatile substances such as the malodorous soil are still dissolved therein, then the water treatment tank 204 is additionally arranged behind the interception tank 201, and the granular activated carbon 205 is filled therein for adsorbing the toxic and odorous substances such as the malodorous soil, the granular activated carbon 205 has good effect of removing the malodorous soil, and by experiment, the malodorous soil can be reduced from 70 mg/L to 1.3mg/L by adding 20mg/L of the granular activated carbon 205 into the water treatment tank 204.

The purification tank unit 2 further includes bacillus cereus disposed in the water treatment tank 204.

In this embodiment, the bacillus cereus is also called cactus bacillus, is a gram positive bacterium, is facultative aerobic, is placed in the water treatment tank 204, can greatly remove the content of the skatole in water, and is tested to remove the skatole from 10mg/L to 0.8ml/L by adding 50cfu/g of the bacillus cereus into the water treatment tank 204.

It is noted that the effect of the bacillus cereus in circulating water is inferior to that of the bacillus cereus in the water treatment tank 204, because the bacillus cereus enters the temporary culture tank 101 along with the flowing of water body so as to enter the fish body to inactivate, and the bacillus cereus enters the fish body to influence the health of the fish to a certain extent, so that the fish dies in the cultivation process to influence the economic benefit, when the bacillus cereus and the granular activated carbon 205 are jointly placed in the water treatment tank 204, the bacillus cereus can be attached to micropores of the granular activated carbon 205 so as to be fixed in the water treatment tank 204, and cannot enter the temporary culture tank 101 along with the flowing of water, and on the other hand, the bacillus cereus can treat the low-concentration soil-odor element which cannot be treated by the granular activated carbon 205, so that the soil-odor element content in the treated water is lower.

The purification tank unit 2 further includes an advanced oxidation tank 206 connected to the water treatment tank 204.

In this embodiment, the advanced oxidation tank 206 is filled with a certain amount of ozone, and the ozone can decompose part of the ozone which cannot be taken out from the water treatment tank 204 by advanced oxidation, so as to further purify the circulating water, the ozone mainly realizes the water purification effect by two ways of direct reaction and indirect reaction, the ozone does not contain double bonds, and the ozone is usually taken out by indirect reaction of ozone, that is, the ozone is decomposed to generate hydroxyl radicals, and the hydroxyl radicals and the ozone are removed by oxidation reaction.

The purification tank unit 2 further includes a water reservoir 207 connected to the advanced oxidation tank 206; the return line unit 3 comprises a return line 301 for withdrawing water from the reservoir 207 to the temporary tank 101, and a water pump 302 arranged on the return line 301 and located in the reservoir 207.

In the present embodiment, the completely purified circulating water flows into the water reservoir 207 through the advanced oxidation tank 206 to be temporarily stored, so that the purified circulating water is returned to the temporary storage tank 101, and then the circulating water is pumped up by the water pump 302 provided in the water reservoir 207 and returned to the temporary storage tank 101 again through the return pipe 301 connected to the other end of the water pump 302.

The return pipe unit 3 further includes a guide pipe 303 provided on the return pipe 301 and along an inner side surface of the temporary rearing pond 101 to rotate the water surface of the temporary rearing pond 101 by draining water, a telescopic pipe 304 connecting the return pipe 301 and the guide pipe 303, and a buoyancy ball 305 provided on the guide pipe 303.

In this embodiment, the guiding action of the guiding pipe 303 makes the circulating water form an annular water flow in the temporary culture pond 101, so that on one hand, the fluidity of the water body is improved, the efficiency of fish contacting with clean water is improved, the fish is facilitated to discharge toxic and odorous substances such as terrapin, on the other hand, the flowing water makes the swimming times of the fish improved, the movement quantity of the fish is increased, and the fish is facilitated to reduce more body fat in the process of hanging and culturing the fish in clean water.

In addition, since the water surface of the circulating water is always at a floating position, if the guide pipe 303 is fixed at the same position of the temporary culture pond 101, the water surface is sometimes very high, so that the circulating water directly falls into the water, an annular water flow effect cannot be formed, and sometimes the circulating water is under the water surface, although the annular water flow can also be generated, the circulating water cannot contact with the external air when entering the temporary culture pond 101, so that the oxygen content in the water is reduced, and the fish culture process is not facilitated, the telescopic pipe 304 is connected with the return pipe 301, and the buoyancy ball 305 is arranged on the guide pipe 303, so that the guide pipe 303 can be always kept at the water surface.

The return pipe unit 3 further includes a first mounting post 306 provided on the flow guide pipe 303, a second mounting post 307 provided on the buoyant ball 305 for connecting the first mounting post 306, an engagement block 308 provided on the first mounting post 306, and an engagement groove 309 provided on the second mounting post 307 for engaging the engagement block 308.

In this embodiment, the buoyancy ball 305 may leak air after long-time use, gradually lose buoyancy, and in order to replace the buoyancy ball 305 in time, a detachable structure is provided, and when the buoyancy ball 305 is installed, only the engagement block 308 is required to be aligned with the engagement groove 309, and only the buoyancy ball 305 is required to be pulled out from the flow guide pipe 303 by force in the detachment process.

The return pipe unit 3 further includes a rotation post hole 310 provided on the first mounting post 306 and the guide pipe 303, a rotation post 311 inserted into the rotation post hole 310, a blocking door 312 provided on an inner side surface of the guide pipe 303 and connected to the rotation post 311, a gear cavity 313 provided on the first mounting post 306 and communicating with the rotation post hole 310, a gear 314 provided on the rotation post 311 and located in the gear cavity 313, a toothed plate hole 315 provided on the first mounting post 306 and communicating with the gear cavity 313 and having an opening direction toward the second mounting post 307, and a toothed plate 316 provided on the second mounting post 307 and inserted into the toothed plate hole 315 and meshed with the gear 314.

In this embodiment, in order to achieve the effect of "water can be discharged when the buoyancy ball 305 is mounted" in the guide pipe 303, the blocking door 312 is provided in the guide pipe 303, the blocking door 312 is in the standing state when the buoyancy ball 305 is not mounted, water is prevented from flowing into the temporary raising pond 101, when the buoyancy ball 305 is mounted, the toothed plate 316 is inserted into the gear cavity 313 through the toothed plate hole 315 and together with the gear 314, as shown in fig. 7, when the toothed plate 316 moves inwards, the gear 314 is driven to rotate, and the rotating column 311 rotates together, so that the blocking door 312 moves from the standing state to the lying state, water is allowed to flow out of the guide pipe 303, and when the buoyancy ball 305 is dismounted, the toothed plate 316 drives the gear 314 to rotate by the same angle in the opposite direction, so that the blocking door 312 moves from the lying state to the standing state, and the guide pipe 303 is closed.

The return pipe unit 3 further includes a slider 317 provided on the flow guide pipe 303; the tank unit 1 further includes a sliding groove 103 provided on the inner side surface of the temporary tank 101 and slidably fixing the sliding block 317.

In this embodiment, in order to always maintain the fitting state with the inner side surface of the temporary culture pond 101 when the height of the guide pipe 303 is adjusted, the guide pipe does not float to the center of the temporary culture pond 101, and then the sliding block 317 is disposed on the side of the guide pipe 303 close to the inner side surface of the temporary culture pond 101, and slides up and down in the sliding groove 103 preset on the inner side surface of the temporary culture pond 101 and is kept engaged with the sliding block, so that the fitting state with the inner side surface of the temporary culture pond 101 is always maintained when the height of the guide pipe 303 is adjusted.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various modifications may be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. These are all non-inventive modifications which are intended to be protected by the patent laws within the scope of the appended claims.

Claims (2)

1. The circulating type pond culture aquatic product quality improving system is characterized by comprising a pond body unit (1) for quality improvement and purification, a purifying pond unit (2) connected to the pond body unit (1) and used for purifying sewage discharged by the pond body unit (1), and a return pipe unit (3) used for re-discharging the purified water of the purifying pond unit (2) into the pond body unit (1); the purifying tank unit (2) comprises a water quality treatment tank (204) for removing the soil odor element in water by an adsorption mode and microbial degradation; the pool body unit (1) comprises a temporary culture pool (101) for temporarily culturing aquatic products, and a sewer pipe (102) which is arranged at the bottom of the temporary culture pool (101) and is used for connecting the purifying pool unit (2); the purifying tank unit (2) further comprises an interception tank (201) connected with the sewer pipe (102), a grid (202) arranged on the interception tank (201), and a backflushing device (203) arranged on the interception tank (201) and used for cleaning the grid (202); the water quality treatment tank (204) is connected with the interception tank (201), and the purification tank unit (2) further comprises granular activated carbon (205) arranged in the water quality treatment tank (204); the purifying tank unit (2) further comprises bacillus cereus arranged in the water quality treatment tank (204); the purifying tank unit (2) further comprises an advanced oxidation tank (206) connected with the water quality treatment tank (204); the purifying tank unit (2) further comprises a reservoir (207) connected with the advanced oxidation tank (206); -the return pipe unit (3) comprises a return pipe (301) for withdrawing water from the reservoir (207) to the temporary tank (101), and a water pump (302) arranged on the return pipe (301) and located in the reservoir (207); the return pipe unit (3) further comprises a guide pipe (303) which is arranged on the return pipe (301) and along the inner side surface of the temporary culture pond (101) so as to enable the water surface in the temporary culture pond (101) to rotate in a drainage mode, a telescopic pipe (304) which is connected with the return pipe (301) and the guide pipe (303), and a buoyancy ball (305) which is arranged on the guide pipe (303); the return pipe unit (3) further comprises a first mounting column (306) arranged on the guide pipe (303), a second mounting column (307) arranged on the buoyancy ball (305) and used for connecting the first mounting column (306), a clamping block (308) arranged on the first mounting column (306), and a clamping groove (309) arranged on the second mounting column (307) and used for clamping the clamping block (308); the return pipe unit (3) further comprises a rotating column hole (310) arranged on the first mounting column (306) and the guide pipe (303), a rotating column (311) inserted into the rotating column hole (310), a blocking door (312) arranged on the inner side surface of the guide pipe (303) and connected with the rotating column (311), a gear cavity (313) arranged on the first mounting column (306) and communicated with the rotating column hole (310), a gear (314) arranged on the rotating column (311) and positioned in the gear cavity (313), a toothed plate hole (315) arranged on the first mounting column (306) and communicated with the gear cavity (313) and with the opening direction facing the second mounting column (307), and a toothed plate (316) arranged on the second mounting column (307) and inserted into the toothed plate hole (315) and meshed with the gear (314).

2. A recirculating aquaculture quality enhancing system according to claim 1, wherein the return pipe unit (3) further comprises a slider (317) arranged on the flow guide pipe (303); the tank body unit (1) further comprises a sliding groove (103) which is arranged on the inner side surface of the temporary culture tank (101) and is used for fixing the sliding block (317) in a sliding manner.

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