CN113273540A - Pond circulating water treatment device and using method - Google Patents
Pond circulating water treatment device and using method Download PDFInfo
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- CN113273540A CN113273540A CN202110653714.2A CN202110653714A CN113273540A CN 113273540 A CN113273540 A CN 113273540A CN 202110653714 A CN202110653714 A CN 202110653714A CN 113273540 A CN113273540 A CN 113273540A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 34
- 238000009360 aquaculture Methods 0.000 claims abstract description 17
- 244000144974 aquaculture Species 0.000 claims abstract description 17
- 241000251468 Actinopterygii Species 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 241000143060 Americamysis bahia Species 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 5
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003653 coastal water Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a pond circulating water processor, which relates to the treatment of aquaculture wastewater and mainly solves the problem that residual excrement cannot be discharged in the aquaculture process of fish culture in an earth pond in the traditional aquaculture mode, so that the water quality of an aquaculture pond is seriously polluted. The invention also discloses a method for using the separator. According to the invention, the adjusting valve is arranged on the inverted U-shaped pipe, so that the sewage discharge amount is conveniently adjusted, the sewage discharge amount can be greatly reduced in circulating water culture, and the effects of energy conservation and emission reduction are achieved.
Description
Technical Field
The invention relates to culture water treatment, in particular to a pond circulating water treatment device and a using method thereof.
Background
The pond circulating water aquaculture system is a novel aquaculture mode which is vigorously developed and constructed in China at present, and pollutants generated in an aquaculture pond are recycled after being treated through a series of water treatment. The pond recirculating aquaculture system can remove residual bait and excrement pollutants in aquaculture water in real time and reduce the generation amount of harmful pollutants such as ammonia nitrogen, nitrite nitrogen and the like, thereby achieving the purpose of purifying aquaculture water environment. Therefore, the recirculating aquaculture system can not only solve the problem of effective utilization of water resources, but also provide a stable, reliable, comfortable and high-quality growth environment for aquaculture organisms and provide favorable conditions for high-density aquaculture.
The traditional pond engineering circulating water culture needs to carry out engineering transformation on a pond, and divides the traditional fishpond into a small water body culture area, a culture sewage collecting area and a large water body purification area. The small water body area simulates the perennial running water environment by means of oxygen increasing and water pushing equipment, and high-density culture of aquatic products is developed. The mode purification area is large in occupied area, the feeding management cost is high, and a sewage suction pump of the sewage collection area needs to be started to suck out residual bait, excrement and other pollutants 2 hours after the feed is fed every time.
The traditional pond fish culture generally needs 6-10 months from fry placing to sale of commercial fish, a large amount of feed and a large amount of excrement and bait manure are put in the culture process for several months, and all the pollution sources are remained in the pond to pollute the water. Therefore, the higher the culture density, the larger the bait feeding amount and the more serious the water quality pollution. Thereby restricting the culture yield of the pond, causing low culture benefit, frequent disease and low culture success rate, and restricting the benign development of the aquaculture industry.
Traditional high-level pond shrimp culture adjusts the breed quality of water through artifical tube drawing drainage water changing, and the breed waste water of a large amount of emission of process of breeding, one of them part is black smelly sewage, seriously pollutes the coastal waters, leads to red tide frequently and coastal waters eutrophication.
The circulating water treatment equipment can separate residual baits and dejecta in the pond in real time to improve the water quality of pond culture, reduce the treatment load of a wastewater purification area and reduce the occupied area and the management cost. However, the existing circulating water equipment has the following problems: when the culture water body is separated from large granular substances in the soil pond in a rotational flow mode, the flow of the drain outlet at the bottom of the outer cyclone can not be adjusted and can only be discharged at a fixed flow speed. Along with the increase of the culture time, the content of residual bait and excrement of organisms cultured in the soil pond is increased, the flow of a sewage outlet of the outer cyclone cannot correspond to the content of residual bait and excrement in different periods, and waste residues in the outer cyclone at the middle and later periods cannot be discharged in time to cause the blockage of the outer cyclone, so that the efficiency of cyclone separation is low.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and aims to provide a pond circulating water processor capable of conveniently adjusting the sewage discharge capacity.
The invention also aims to provide a using method of the pond circulating water real-time concentration separator, which can conveniently adjust the sewage discharge amount.
In order to achieve the first purpose, the invention provides a pond circulating water processor which comprises an outer cyclone and an inner cyclone inserted in the outer cyclone, wherein a water inlet pipe is arranged at the upper end of the outer cyclone, the water inlet pipe is respectively provided with an outer cyclone water inlet tangentially flowing to the inner wall of the outer cyclone and an inner cyclone water inlet tangentially flowing to the inner wall of the inner cyclone, a water outlet pipe is arranged at the top of the outer cyclone, an air inlet pipe is arranged on the water outlet pipe, a sewage discharge pipe is arranged at the bottom of the outer cyclone, an inverted U-shaped pipe is arranged at the outlet of the sewage discharge pipe, an adjusting valve is arranged on the inverted U-shaped pipe, and a siphon destroying structure is arranged at the top of the inverted U-shaped pipe.
As a further improvement, the highest point of the inverted U-shaped pipe is at the same height as the top of the water outlet pipe.
Further, the siphon breaking structure is an air pressure balance pipe extending upwards, and the height of the air pressure balance pipe is larger than that of the water outlet pipe.
Furthermore, the outer swirler and the inner swirler are both in a conical cylinder structure with a large upper end and a small lower end.
Further, the cone angle of the cone-shaped cylinder structure is 25-35 degrees.
Furthermore, a cylinder is arranged at the top of the outer swirler, and a pressure adjusting cone connected with the water outlet pipe is arranged at the top of the cylinder.
The water inlet pipe, the water outlet pipe and the sewage discharge pipe respectively penetrate through the shell; the top of casing is equipped with the air inlet, the bottom of casing is equipped with the evacuation pipe.
Furthermore, the space between the shell and the outer cyclone is filled with water, so that the internal and external pressure balance of the outer cyclone is kept and the stability of the equipment is improved, and a communicating pipe is arranged between the shell and the outer cyclone.
Furthermore, an air inlet pipe is connected beside the water outlet pipe, a three-way valve is connected to the air inlet pipe, and the three ends of the three-way valve are respectively an air input end, an ozone input end and a gas output end; the air input end of the three-way valve is connected with a switch valve; the air input end of the three-way valve is also connected with a flowmeter.
In order to achieve the second purpose, the invention provides a using method of the pond circulating water processor, which comprises the following steps of;
filling water into the space between the shell and the outer cyclone;
connecting a water inlet pipe of the outer swirler to a sewage collecting well at the bottom of the pond through a water suction pump, connecting a water outlet pipe of the outer swirler to the pond, and starting the water suction pump to form a new circulating water aquaculture mode;
the opening of the adjusting valve is adjusted according to different growth periods of the fishes and the shrimps in the pond so as to adjust the discharge capacity of the discharge pipe.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the regulating valve is arranged on the inverted U-shaped pipe, so that the opening degree of the regulating valve can be regulated according to the residual bait excrement amount of the cultured fish in different periods, when the sewage discharge amount of the sewage discharge pipe is large, the discharge capacity of the water outlet pipe is small, and when the sewage discharge amount of the sewage discharge pipe is small, the discharge capacity of the water outlet pipe is large, so that the sewage discharge amount can be conveniently regulated.
2. According to the invention, the inverted U-shaped pipe is arranged at the outlet of the sewage discharge pipe, the damage siphon structure is arranged at the top of the inverted U-shaped pipe, the stability of the flow of the sewage discharge outlet is realized, the water displacement ratio between the inlet water and the concentrated sewage discharge outlet which are subjected to real-time concentration and separation after passing through the inverted U-shaped pipe can be controlled within 1/20-1/30, so that the purposes of large-flow real-time inlet water concentration and separation and small-flow concentration and sewage discharge are realized, the small discharge of the culture tail (waste) water can be reduced only when the small-flow concentration and sewage discharge is realized, the pressure and the burden can be reduced for the treatment of the culture tail (waste) water, and the final aims of energy conservation, emission reduction and environment protection are achieved.
3. According to the invention, the space between the shell and the outer cyclone is filled with water, and the communicating pipe is arranged between the shell and the outer cyclone, so that the pressure inside and outside the outer cyclone can be balanced, the water can play a role of counterweight when the shell is filled with water, the equipment installation is more stable, and the service life is long.
4. The pond is closed through the circulating water treater and is circulated the separation and handle the residual bait excrement and urine of breeding aquatic, does not contact with outside water source, effectively cuts off external source of illness invasion, has reduced the breed risk, has improved and has bred the success rate.
5. Greatly reduces the discharge amount of the culture wastewater, takes 3 mu of pond as an example, and only 2m of concentrated discharge amount is circulated every day3And the wastewater discharge is reduced by more than 200-300 times compared with the traditional culture.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the housing of the present invention.
Wherein: 1-outer cyclone, 2-water inlet pipe, 3-water outlet pipe, 4-regulating valve, 5-sewage discharge pipe, 6-inverted U-shaped pipe, 7-broken siphon structure, 8-cylinder, 9-shell, 10-communicating pipe, 11-air inlet, 12-emptying pipe, 13-air inlet pipe, 14-flowmeter, 15-inner cyclone, 16-outer cyclone water inlet, 17-inner cyclone water inlet, 18-pressure regulating cone and 19-water pump.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1 and 2, the pond circulating water processor comprises an outer cyclone 1 and an inner cyclone 15 inserted in the outer cyclone 1, wherein the upper end of the outer cyclone 1 is provided with a water inlet pipe 2, the water inlet pipe 2 is respectively provided with an outer cyclone water inlet 16 for tangentially flowing to the inner wall of the outer cyclone 1 and an inner cyclone water inlet 17 for tangentially flowing to the inner wall of the inner cyclone 15, the top of the outer cyclone 1 is provided with a water outlet pipe 3, the water outlet pipe 3 is provided with an air inlet pipe 13, the air inlet pipe 13 can increase the dissolved oxygen in the water, and the air inlet amount can reach 8-10 m3And h, a sewage discharge pipe 5 is arranged at the bottom of the outer cyclone 1. Can adjust the aperture of governing valve 4 according to the incomplete bait excrement and urine volume of breeding the fish in different periods, it is little when the discharge capacity of outlet pipe 3, the discharge capacity of blow off pipe 5 is big, and it is big when the discharge capacity of outlet pipe 3, the discharge capacity of blow off pipe 5 is little to conveniently adjust the discharge capacity. The export of blow off pipe 5 is equipped with type of falling U6, is equipped with governing valve 4 on type of falling U6, and the top of type of falling U6 is equipped with destroys siphon structure 7, and it is big to prevent to breed waste water discharge behind the siphon, realizes the stability of drain flow. Through setting up governing valve 4 on falling U type pipe 6, can adjust governing valve 4's aperture according to the incomplete bait excrement and urine volume of breeding the fish in different periods, it is big when the blow off volume of blow off pipe 5, the discharge capacity of outlet pipe 3 is little, and the discharge capacity of outlet pipe 3 is big when the blow off volume of blow off pipe 5 to conveniently adjust the blow off volume. The outlet of the sewage discharge pipe 5 is provided with an inverted UType pipe 6 to set up at the top of falling U type pipe 6 and destroy siphon structure 7, realize the stability of drain flow, through falling the water yield proportion between the water intake of U type pipe 6 back real-time concentration separation and the concentrated drain can be controlled within 1/20 ~ 1/30, for example, the flow of inlet tube 2 is 60m3The flow rate after passing through the inverted U-shaped pipe 6 is 2-3 m3And h, the flow direction of sewage discharge is shown by a dotted line in figure 1, so that the purposes of large-flow real-time water inlet concentration and separation and small-flow concentration sewage discharge are realized, the small discharge of the culture tail (waste) water can be reduced only by realizing the small-flow concentration sewage discharge, the pressure and the burden can be reduced for the treatment of the culture tail (waste) water, and the final aims of energy conservation, emission reduction and environmental protection are fulfilled.
In this embodiment, the highest point of the inverted U-shaped pipe 6 is at the same height as the top of the water outlet pipe 3. The siphon breaking structure 7 is an air pressure balance pipe extending upwards, and the height of the air pressure balance pipe is greater than that of the water outlet pipe 3. The inverted U-shaped pipe 6 is provided with a flowmeter 14 which can detect the flow of the sewage discharge pipe 5 in real time.
In other embodiments, the breaking siphon structure 7 may be a siphon break valve.
Outer swirler 1, interior swirler 15 are the big, the little tapered tube structure of lower extreme in upper end, and the water descends along the inner wall spiral in outer swirler 1 to the velocity of flow increases, realizes water and large granule material separation easily, and the water flows out from outlet pipe 3, and large granule material and incomplete bait excrement and urine flow out from blow off pipe 5. Preferably, the taper angle of the taper cylinder structure is 25-35 °. The top of the outer swirler 1 is provided with a cylinder 8, the top of the cylinder 8 is provided with a pressure adjusting cone 18 connected with the water outlet pipe 3, and the water inlet pipe 2 is provided with a water pump 19.
The treater also comprises a shell 9 for wrapping the outer swirler 1, and the water inlet pipe 2, the water outlet pipe 3 and the sewage discharge pipe 5 respectively penetrate through the shell 9. The space between the shell 9 and the outer swirler 1 is filled with water, a communicating pipe 10 is arranged between the shell 9 and the outer swirler 1, and a valve is arranged on the communicating pipe 10. An air inlet 11 is arranged at the top of the shell 9, and an emptying pipe 12 is arranged at the bottom of the shell 9. The space between the shell 9 and the outer swirler 1 is filled with water, the communicating pipe is arranged between the shell 9 and the outer swirler 1, the pressure inside and outside the outer swirler 1 can be balanced, the water is filled, the counterweight effect can be achieved, the equipment installation is more stable, and the service life is long.
An air inlet pipe 13 is connected beside the water outlet pipe 3, a three-way valve 25 is connected on the air inlet pipe 13, and the three ends of the three-way valve 25 are respectively an air input end, an ozone input end and a gas output end. The air input end of the tee 25 is connected with a switch valve 23. The air input of the three-way valve 25 is also connected to a flow meter 24. The cultivation tail water forms rotational flow under the action of the outer cyclone 1 and the inner cyclone 15, the circulating water body and residual bait excrement are separated from each other up and down, the circulating water body enters the water outlet pipe 3 and forms jet flow, negative pressure formed by the jet flow sucks air through the air inlet pipe 13, and the air and the circulating water in the water inlet pipe 3 are fully mixed and diffused in a jet flow mode to form aeration and oxygenation, so that the dissolved oxygen content of the circulating water in the water inlet pipe 3 is improved. During normal operation, the air input end of the three-way valve 25 is communicated with the gas output end. When the equipment needs to be sterilized, the ozone input end and the gas output end of the three-way valve 25 are communicated, and then the ozone can be introduced into the equipment pipeline.
A using method of a pond circulating water processor comprises the following steps of;
filling water into the space between the shell 9 and the outer swirler 1;
connecting a water inlet pipe 2 of the outer swirler 1 to a sewage collecting well at the bottom of the pond through a water suction pump, connecting a water outlet pipe 3 of the outer swirler 1 to the pond, and starting the water suction pump to form a new circulating water aquaculture mode;
the opening degree of the adjusting valve 4 is adjusted according to different growth periods of the fishes and the shrimps in the pond so as to adjust the discharge capacity of the discharge pipe 5.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. The utility model provides a pond circulating water treater, its characterized in that, including outer swirler (1), peg graft in interior swirler (15) of outer swirler (1), the upper end of outer swirler (1) is equipped with inlet tube (2), inlet tube (2) are equipped with the tangential flow direction respectively outer whirl water inlet (16), the tangential flow direction of outer swirler (1) inner wall interior whirl water inlet (17) of interior swirler (15) inner wall, the top of outer swirler (1) is equipped with outlet pipe (3), the bottom of outer swirler (1) is equipped with blow off pipe (5), the export of blow off pipe (5) is equipped with type of falling U pipe (6), be equipped with governing valve (4) on type of falling U pipe (6), the top of type of falling U pipe (6) is equipped with destroys siphon structure (7).
2. A pond circulating water processor according to claim 1, characterized in that the highest point of the inverted U-shaped pipe (6) is at the same height as the top of the water outlet pipe (3).
3. A pond circulating water processor according to claim 1, characterized in that the breaking siphon structure (7) is an upwardly extending air pressure balance pipe, the height of which is greater than the height of the outlet pipe (3).
4. A pond circulating water processor according to claim 1, characterized in that the outer cyclone (1) and the inner cyclone (15) are both of a cone-shaped cylinder structure with a large upper end and a small lower end.
5. A pond circulating water processor according to claim 4, wherein the cone angle of the cone-shaped cylinder structure is 25-35 °.
6. A pond circulating water processor according to claim 4, characterized in that the top of the outer cyclone (1) is provided with a cylinder (8), and the top of the cylinder (8) is provided with a pressure regulating cone (18) connected with the water outlet pipe (3).
7. A pond circulating water processor according to claim 1, further comprising a shell (9) for wrapping the outer cyclone (1), wherein the water inlet pipe (2), the water outlet pipe (3) and the sewage discharge pipe (5) respectively penetrate through the shell (9); the top of casing (9) is equipped with air inlet (11), the bottom of casing (9) is equipped with evacuation pipe (12).
8. A pond circulating water processor according to claim 7, characterized in that the space between the housing (9) and the outer cyclone (1) is filled with water, and a communicating pipe (10) is arranged between the housing (9) and the outer cyclone (1).
9. A pond circulating water processor according to claim 1, characterized in that an air inlet pipe (13) is connected beside the water outlet pipe (3), a three-way valve (25) is connected to the air inlet pipe (13), and three ends of the three-way valve (25) are respectively an air input end, an ozone input end and a gas output end; the air input end of the three-way valve (25) is connected with a switch valve (23); the air input end of the three-way valve (25) is also connected with a flowmeter (24).
10. A method of using a pond circulating water processor according to any one of claims 1 to 9, comprising;
filling water into the space between the shell (9) and the outer cyclone (1);
connecting a water inlet pipe (2) of the outer swirler (1) to a sewage collecting well at the bottom of the pond through a water suction pump, connecting a water outlet pipe (3) of the outer swirler (1) to the pond, and starting the water suction pump to form a circulating water aquaculture new mode;
the opening degree of the regulating valve (4) is adjusted according to different growth periods of the fishes and the shrimps in the pond so as to regulate the discharge capacity of the discharge pipe (5).
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| CN106362879A (en) * | 2016-11-03 | 2017-02-01 | 太原理工大学 | Separation device for high temperature products of coal pyrolysis |
| CN112429886A (en) * | 2020-12-09 | 2021-03-02 | 蚌埠中光电科技有限公司 | Glass polishing wastewater treatment method |
| CN215422337U (en) * | 2021-06-11 | 2022-01-07 | 广州创领水产科技有限公司 | Pond circulating water treater |
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