CN116724945B - Fish raising system - Google Patents
Fish raising system Download PDFInfo
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- CN116724945B CN116724945B CN202310523149.7A CN202310523149A CN116724945B CN 116724945 B CN116724945 B CN 116724945B CN 202310523149 A CN202310523149 A CN 202310523149A CN 116724945 B CN116724945 B CN 116724945B
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- fish
- sewage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 215
- 241000251468 Actinopterygii Species 0.000 claims abstract description 105
- 239000010865 sewage Substances 0.000 claims abstract description 91
- 239000001301 oxygen Substances 0.000 claims abstract description 84
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 84
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 78
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000000746 purification Methods 0.000 claims abstract description 27
- 238000012258 culturing Methods 0.000 claims abstract 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 33
- 238000005273 aeration Methods 0.000 claims description 27
- 238000005086 pumping Methods 0.000 claims description 22
- 241000238557 Decapoda Species 0.000 claims description 12
- 239000002101 nanobubble Substances 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009372 pisciculture Methods 0.000 claims 8
- 238000004064 recycling Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 9
- 238000009395 breeding Methods 0.000 description 7
- 230000001488 breeding effect Effects 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 238000009360 aquaculture Methods 0.000 description 4
- 244000144974 aquaculture Species 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006213 oxygenation reaction Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000143060 Americamysis bahia Species 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- 238000012986 modification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 230000000366 juvenile effect Effects 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 241000716345 Seriphus politus Species 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000015097 nutrients Nutrition 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; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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; CARE OF BIRDS, FISHES, INSECTS; 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
- A01K63/047—Liquid pumps for aquaria
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to a fish culturing system, which comprises a fish culturing area, a biological sewage treatment subsystem and a high dissolved oxygen pond, wherein the high dissolved oxygen pond is connected with an oxygen supply mechanism; the invention is provided with a biological sewage treatment system for performing biological purification treatment on sewage discharged from the fish raising barrel, thereby providing a precondition for recycling sewage; secondly, the oxygen content in the water is improved by introducing the water after biological purification into a high-dissolved-oxygen pond, so that the water after sewage treatment can meet the oxygen content requirement of fish, and finally, the water in the high-dissolved-oxygen pond is introduced into a fish raising barrel, thereby realizing the recycling of the water; therefore, the system improves the oxygen content of the water after sewage purification and realizes the recycling of water resources.
Description
Technical Field
The invention relates to the technical field of fish fry breeding, in particular to a fish breeding system.
Background
With the rapid development of the aquaculture industry and the increasing shortage of water resources in China, a circulating water aquaculture system becomes an effective measure for relieving the environmental pressure due to high aquaculture density and recyclable water resources, is widely accepted by people, and becomes one of the main development directions of modern aquaculture.
In the existing fry breeding system, less sewage discharged from the fry breeding barrels is recycled; secondly, the existing sewage purification system is easy to reduce the oxygen content in sewage after the sewage is treated, and the water can influence the growth of farmed fish when being recycled.
Disclosure of Invention
The invention aims to design a fish raising system, so that the fish raising system does not need to add chemicals or ozone to treat the sewage of a fish fry culture pond, and can realize that the water body is treated and rich in oxygen returns to the fish fry culture pond for recycling.
The technical scheme of the invention is as follows: the utility model provides a fish raising system, includes fish raising area, biological sewage treatment subsystem and high dissolved oxygen pond, including at least one fish raising barrel in the fish raising area, high dissolved oxygen pond is connected with oxygen supply mechanism, be equipped with the blow off pipe in the fish raising barrel, the first drain intercommunication open channel of blow off pipe, the bottom of fish raising barrel is equipped with first through-hole, install first outlet pipe on the first through-hole, first outlet pipe passes through first through-hole with open channel intercommunication, the open channel with biological sewage treatment subsystem's inlet end intercommunication, biological sewage treatment subsystem's outlet end with Gao Rongyang pond intercommunication, high dissolved oxygen pond pass through the wet return with fish raising barrel intercommunication.
Further, a second drain outlet is formed in the drain pipe and is communicated with the shrimp culture barrel, and the bottom of the shrimp culture barrel is communicated with the open channel through a pipeline.
Further, the high oxygen dissolving tank is communicated with an external water supply system.
Further, a bait feeding device is arranged above the fish raising barrel.
Further, the oxygen supply mechanism comprises a nano bubble machine communicated with the high dissolved oxygen tank and an aerator communicated with the nano bubble machine.
Further, an aeration mechanism is arranged in the high-dissolved oxygen tank, the aeration mechanism comprises an aeration pipe, the aeration pipe is communicated with a blower, and the aeration pipe is arranged at the bottom of the high-dissolved oxygen tank.
Further, the Gao Rongyang pool is communicated with a first hydroxyl generator.
Further, a back-pumping mechanism is arranged in the high dissolved oxygen tank; the back-pumping mechanism comprises a back-pumping pipe positioned at the bottom of the high-dissolved oxygen pond, the back-pumping pipe is communicated with a water inlet of a back-pumping pump, and a water outlet of the back-pumping pump is communicated with the biological sewage treatment subsystem.
Further, a heating mechanism is arranged in the high dissolved oxygen tank.
Further, a pollution discharge ring pipe and a second air inlet pipe are arranged in the fish raising barrel; the middle part of the bottom of the fish raising barrel is provided with a first through hole, the first through hole is communicated with a first water outlet pipe, the sewage discharging ring pipe is sleeved outside the first water outlet pipe, and the sewage discharging ring pipe is positioned at the bottom of the fish raising barrel; the bottom of the sewage discharge ring pipe is provided with a plurality of second through holes which are uniformly distributed; the blowdown ring pipe is communicated with the second air inlet pipe; the drain pipe is communicated with the drain ring pipe.
Compared with the prior art, the invention has the advantages that: the invention is provided with a biological sewage treatment system for performing biological purification treatment on sewage discharged from the fish raising barrel, thereby providing a precondition for recycling sewage; secondly, the oxygen content in the water is improved by introducing the water after biological purification into a high-dissolved-oxygen pond, so that the water after sewage treatment can meet the oxygen content requirement of fish, and finally, the water in the high-dissolved-oxygen pond is introduced into a fish raising barrel, thereby realizing the recycling of the water; therefore, the system improves the oxygen content of the water after sewage purification and realizes the recycling of water resources.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a perspective view of the fish raising barrel of the present invention;
FIG. 3 is a sectional view of the fish raising barrel of the present invention;
FIG. 4 is a schematic diagram of the cooperation of an aeration loop and a blowdown loop of the present invention;
FIG. 5 is a perspective view of a biological wastewater treatment subsystem of the present invention;
FIG. 6 is a cross-sectional view taken at A-A of FIG. 5 in accordance with the present invention;
wherein: 1. a primary biochemical pool; 2. a biological purification tank; 3. a high dissolved oxygen pool; 4. a second hydroxyl generator; 5. a water inlet pipe; 6. a water outlet pipe; 7. a cross plate; 8. a sloping plate; 9. a base; 10. a secondary biochemical pool; 11. a filler plate; 12. a deflector; 13. a baffle; 14. a water inlet hole; 15. a gas stone; 16. an aeration pipe; 17. a blower; 18. a back suction pipe; 19. a sewage pump; 20. a branch pipe; 21. a first water pipe; 22. a second water pipe; 23. a third water pipe; 24. a first valve; 25. a second valve; 26. a first hydroxyl generator; 27. an oxygen supply mechanism; 28. a fish raising barrel; 29. a water inlet pipe; 30. a water inlet ring pipe; 31. a spray head; 32. an intake manifold; 33. a first air inlet pipe; 34. a second air inlet pipe; 35. a first water outlet pipe; 36. a second water outlet pipe; 37. a barrier web; 38. a blow-down pipe; 39. a transparent tube; 40. a blow-down valve; 41. a sewage discharge ring pipe; 42. an aeration ring pipe; 43. a fixed rod; 44. an end cap; 45. open channels; 46. and a water return pipe.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Examples: referring to fig. 1-4, a fish raising system comprises a fish raising area, a biological sewage treatment subsystem and a high dissolved oxygen tank 3, wherein the fish raising area comprises at least one fish raising barrel 28, the high dissolved oxygen tank 3 is connected with an oxygen supply mechanism 27, a drain pipe 38 is arranged in the fish raising barrel 28, a first drain outlet of the drain pipe 38 is communicated with an open channel 45, a first through hole is arranged at the bottom of the fish raising barrel 28, a first water outlet pipe 35 is arranged on the first through hole, the first water outlet pipe 35 is communicated with the open channel 45 through the first through hole, the open channel 45 is communicated with the water inlet end of the biological sewage treatment subsystem, the water outlet end of the biological sewage treatment subsystem is communicated with the high dissolved oxygen tank 3, sewage containing fish feces or residual feed generated in the fish raising barrel 28 enters the open channel 45 through the drain pipe 38, and then water in the open channel 45 flows into the biological sewage treatment subsystem for biological purification treatment, so that a precondition is provided for the cyclic utilization of sewage; subsequently, the water after biological purification is introduced into the high dissolved oxygen pond 3, and the oxygen supply mechanism 27 is used for lifting the oxygen content of the water entering the high dissolved oxygen pond 3, so that the water after sewage treatment can meet the oxygen content requirement of fish; the high dissolved oxygen tank 3 is communicated with the fish raising barrel 28 through a water return pipe; so that the water with the oxygen content increased can flow back to the fish raising barrel 28 through the water return pipe, and the cyclic utilization of the water is realized; in addition, the one end that first through-hole kept away from first outlet pipe 35 communicates there is the drain pipe, and the delivery port intercommunication open channel 45 of drain pipe, and is equipped with the valve on the drain pipe, when the fry rearing is accomplished and is needed to catch out, can take out first outlet pipe 35 after closing the valve, opens the valve afterwards, puts into open channel 45 (guaranteed the circulated of water resource) with the water in the fish raising bucket 28, when the water level in the fish raising bucket 28 reaches the position that is fit for catching the fish, closes the valve, can implement and catch.
In the invention, a water inlet pipe 29, an aeration ring pipe 42, a sewage ring pipe 41, an air inlet main pipe 32, a first air inlet pipe 33, a second air inlet pipe 34, a sewage pipe 38 and a water inlet ring pipe 30 are arranged in a fish raising barrel 28; the water inlet ring pipe 30 is arranged on the inner wall of the upper end part of the fish raising barrel 28; one end of the water inlet pipe 29, which is close to the water pool, is communicated with the water inlet ring pipe 30, and the other end is communicated with the water return pipe; at least four spray heads 31 are installed on the water inlet ring pipe 30; at least four spray heads 31 are distributed in a circumferential array by taking the center of the fish raising barrel 28 as the center of a circle; water is introduced into the water inlet pipe 29, and is sprayed out from the spray head 31 after passing through the water inlet ring pipe 30, so that water is simultaneously introduced into the periphery of the fish raising barrel 28, uniform water distribution is realized, the dissolved oxygen quantity at each position in the water tank is uniform, in addition, the water spraying ports of the spray head 31 face the inner wall of the fish raising barrel 28, and the impact force of water inlet discharged from the inner wall of the fish raising barrel 28 can enable the water to slowly flow into the fish raising barrel 28; the middle part of the bottom of the fish raising barrel 28 is provided with a first through hole, the first through hole is communicated with a first water outlet pipe 35, the upper end part of the first water outlet pipe 35 is communicated with a second water outlet pipe 36, and the second water outlet pipe 36 is positioned in the fish raising barrel 28; the second water outlet pipe 36 is provided with a second water outlet hole, and the second water outlet hole is provided with a blocking net 37 for preventing fish fries from being discharged along with water flow after entering the second water outlet pipe 36; an end of the second outlet pipe 36 remote from the first outlet pipe 35 is provided with an end cap 44; the aeration ring pipe 42 and the pollution discharge ring pipe 41 are fixed on the first water outlet pipe 35 through the fixing rod 43, so that the water is prevented from being far away from the bottom of the tank body due to buoyancy; the aeration loop 42 is communicated with the first air inlet pipe 33; the sewage ring pipe 41 is sleeved outside the first water outlet pipe 35, and the sewage ring pipe 41 is positioned at the bottom of the fish raising barrel 28; the bottom of the blowdown ring pipe 41 is provided with a plurality of second through holes which are uniformly distributed; the blowdown loop pipe 41 is communicated with the second air inlet pipe 34; the first air inlet pipe 33 and the second air inlet pipe 34 are communicated with the air inlet main pipe 32; one end of the drain pipe 38 is communicated with the drain ring pipe 41, and a first drain outlet of the drain pipe is communicated with the open channel 45; the bottom of the fish raising barrel 28 is in an inverted cone shape, so that the excrement can be conveniently collected to the sewage discharge ring pipe 41 along with the water flow flowing in the fish raising barrel 28; continuously introducing oxygen-dissolved water into the water inlet pipe 29, spraying the water from each spray head 31 after passing through the water inlet ring pipe 30, wherein the water level is as high as the second water outlet pipe 36, the water enters from the blocking net 37 of the second water outlet pipe 36, sequentially passes through the second water outlet pipe 36, the first water outlet pipe 35 and the first through holes and then is discharged out of the fish raising barrel 28 and enters the open channel 45, so that the water level in the fish raising barrel 28 can be ensured, and meanwhile, the blocking net 37 can prevent fish fries from being discharged to the open channel 45 along with water flow; continuously introducing gas into the first air inlet pipe 33 and the second air inlet pipe 34 through the air inlet main pipe 32, changing the gas in the first air inlet pipe 33 into a large number of tiny bubbles through the aeration annular pipe 42, and increasing oxygen for the fish raising barrel 28 and simultaneously causing water flow to move upwards, so that water at the bottom of the fish raising barrel 28 flows towards the aeration annular pipe 42, and excrement can be further gathered at the bottom of the fish raising barrel 28; meanwhile, the gas in the second air inlet pipe 34 enters the blow-down loop 41 and then is discharged upwards from the blow-down pipe 38, the gas drives the blow-down loop 41 and water in the blow-down pipe 38 to be discharged upwards, and then water near the blow-down loop 41 enters the blow-down loop 41 from the second through hole, so that the excrement at the bottom of the pool is also brought into the blow-down loop 41 by the water and then is discharged into the open channel 45 from the blow-down pipe 38; by the mode of dirt collection and pollution discharge, the pollution discharge efficiency of the excrement in the fish raising barrel 28 is improved, and the water quality is improved.
The top of first outlet pipe 35 is lower than the top of breeding the fish bucket 28, and the pipe wall at first outlet pipe 35 top is equipped with separation net 37, and when the separation net 37 of second outlet pipe 36 blocks up, the water level rises to the first apopore department of first outlet pipe 35, then water gets into first outlet pipe 35 from separation net 37 and discharges, avoids leading to water to spill over and breeding the fish bucket 28 because of second outlet pipe 36 blocks up.
A small section of transparent pipe 39 is arranged on the drain pipe 38, and a drain valve 40 is arranged on the drain pipe 38; when the small holes at the bottom of the blowdown ring pipe 41 are blocked, no water in the blowdown pipe 38 can be seen through the transparent pipe 39, the blowdown valve 40 is closed at the moment, and under the condition that the second air inlet pipe 34 is continuously introduced with air, the air in the blowdown ring pipe 41 can only be discharged from the small holes, and then the blocking objects on the small holes are reversely punched out, and then the blocking objects are fished up, so that the blocking condition of the blowdown pipe 38 can be observed at any time, the blocking of the small holes is avoided, and the blowdown efficiency is improved; the sizes of the holes are determined according to the bred juvenile fish by arranging a blocking net 37 and a second through hole in the fish breeding barrel 28; in addition, the fish raising barrel 28 is provided with a bait feeding device above, the bait feeding device adopts relatively common feeding equipment, and the bait feeding device is connected with a remote control console, so that breeders can realize feeding of feed at a distance.
The drain pipe 38 is provided with a second drain outlet which is communicated with the shrimp culture barrel, and the bottom of the shrimp culture barrel is communicated with the open channel 45 through a pipeline; the drain pipe 38 and the shrimp culture barrel and the drain pipe 38 and the pipelines of the open channel 45 are respectively provided with a valve, when the sewage of the fish culture barrel 28 is discharged, the sewage can be selectively and directly discharged to the open channel 45 or the shrimp culture barrel, the sewage can be directly discharged to the open channel 45 through the shrimp culture barrel and simultaneously discharged to the shrimp culture barrel, the shrimps cultured in the shrimp culture barrel are edible shrimps (namely, the added value of the system is increased), part of juvenile fish excrement and the residual feed of the fish culture barrel can be treated firstly, and the sewage is treated by a subsequent biological sewage treatment subsystem.
Referring to fig. 5 to 6, the biological sewage treatment subsystem comprises a primary biochemical tank 1, a biological purification tank 2 and a secondary biochemical tank 10 which are sequentially communicated, wherein sewage pumped from a fish raising barrel 28 is introduced into the primary biochemical tank 1, and can be reused in the fish raising barrel 28 after being sequentially treated by the primary biochemical tank 1, the biological purification tank 2 and the secondary biochemical tank 10; in which a tool class organism is housed in the biological purification tank 2, for example: omnivorous fishes (e.g., queen fishes) and shrimps, etc., can feed on the feces in the sewage and the residual feed in the fish raising barrel 28, thereby purifying the sewage; the primary biochemical tank 1 and the secondary biochemical tank 10 are respectively provided with a biological decomposition mechanism, the primary biochemical tank 1 is also communicated with a second hydroxyl generator 4, a water inlet pipeline 5 of the primary biochemical tank 1 and the second hydroxyl generator 4, a water outlet pipeline 6 of the second hydroxyl generator 4 and the second hydroxyl generator 4 form a passage, a baffle 13 is arranged at the water inlet position of the primary biochemical tank 1, and a plurality of water inlet holes 14 are arranged at the bottom of the baffle 13. In the working process, sewage in the fry culture pond is introduced from the water inlet, discharged by the baffle 13 and enters the primary biochemical pond 1 through the water inlet hole 14, so that the force of directly impacting the bottom of the primary biochemical pond 1 by the sewage can be reduced, namely, the sewage which is deposited at the bottom of the primary biochemical pond 1 is prevented from being suspended in water due to the stress.
The primary biochemical tank 1 is internally provided with a biological decomposition mechanism, the biological decomposition mechanism comprises transverse plates 7 and inclined plates 8 which are arranged in a staggered way, and the transverse plates 7 and the inclined plates 8 are wavy plates; the surface of diaphragm 7 and the surface of swash plate 8 all are equipped with the biomembrane, and the bottom of diaphragm 7 at both ends all is equipped with base 9, and diaphragm 7 installs on base 9, swash plate 8 and diaphragm 7 fixed connection. The arrangement can enable sewage to spread upwards along the bottom after entering the primary biochemical pond 1 from the water inlet 14, the arrangement of the transverse plate 7 and the inclined plate 8 can enable sewage in the sewage to be adsorbed by the biological film when water flows through, and the wavy plate can not only increase the attaching area of the biological film, but also the bending part is more beneficial to sewage deposition; in addition, the tank walls of the primary biochemical tank 1, the biological purification tank 2 and the secondary biochemical tank 10 are coated with an adsorption layer, and the components of the adsorption layer are consistent with those of the existing biological filler, so that dirt can be adsorbed, and the water quality is improved.
The biological purification tank 2 is internally provided with a purification mechanism and a plurality of guide plates 12, the guide plates 12 divide the water flow direction of the biological purification tank 2 into S-shaped, the bottoms of the guide plates 12 are U-shaped, and the purification mechanism is arranged between two adjacent guide plates 12; after sewage enters the biological purification tank 2 from the top of the primary biochemical tank 1, sewage in the sewage is treated by the purification mechanism, and under the arrangement of the guide plate 12, water flow is in S-shaped flow, so that the flow of the sewage is prolonged, the flow speed is slowed down, the sewage is deposited at the guide plate 12, and the design of the U-shaped bottom of the guide plate 12 is more effective to enable the sewage to be deposited. The biological purification tank 2 is also provided with an air stone 15, and the air stone 15 is communicated with an external air pump and is used for oxygenation of the biological purification tank 2, so that aerobic bacteria in the biological purification tank 2 grow better and nutrient-rich substances in the biological purification tank 2 can be absorbed; the purifying mechanism comprises a packing plate 11 suspended in the biological purifying tank 2 and a biological packing filled in the packing plate 11, wherein the biological packing can be commonly used existing biological packing; the biological filler is attached to the filler plate 11, so that dirt can be adsorbed, and secondary treatment of sewage from the primary biochemical tank 1 is realized.
The secondary biochemical tank 10 has the same structure as the primary biochemical tank 1, and the secondary biological tank can adsorb and precipitate sewage again, so that the treated water quality is better; in the invention, the secondary biochemical pool 10 is communicated with the high dissolved oxygen pool 3, so that purified water can flow into the high dissolved oxygen pool 3 for oxygenation treatment, thereby improving the oxygen content in the purified water.
The filler plate 11 is a bamboo ring, and the bamboo ring can slowly release carbon sources which can promote the growth of microorganisms such as bacteria and algae; the filler can provide microelements, so that a biological film is generated outside the filler more easily, and the microelements can enable the osmotic pressure of water to be smaller, so that the filter-feeding fish can grow in a more comfortable environment. Algae water is used for fish culture, algae can provide oxygen and amino acid, can indirectly supplement amino acid for filter-feeding fishes, strengthen physique of the filter-feeding fishes, has long survival time and can eat more sludge.
The high dissolved oxygen pond 3 is provided with an aeration mechanism and an oxygen supply mechanism 27, the aeration mechanism comprises an aeration pipe 16, the aeration pipe 16 is communicated with a blower 17, and the aeration pipe 16 is arranged at the bottom of the Gao Rongyang pond 3; in the working process, the air blower 17 blows into the aeration pipe 16 to aerate and aerate the water in the high dissolved oxygen tank 3; the oxygen supply mechanism 27 comprises a nano bubble machine communicated with the high oxygen dissolving tank 3 and an aerator communicated with the nano bubble machine, the aerator is used for providing oxygen for the nano bubble machine, the nano bubble machine pumps out water in the high oxygen dissolving tank 3 and dissolves the oxygen into water in the Gao Rongyang tank 3, and then the water dissolved with the oxygen is led back into the high oxygen dissolving tank 3, so that the oxygen content in the high oxygen dissolving tank 3 is improved; secondly, an oxygenerator can be independently adopted to introduce oxygen into the high dissolved oxygen tank 3 so as to improve the oxygen content in water.
The sewage pump 19 is connected to the water inlet pipeline 5 of the second hydroxyl generator 4, the water outlet of the sewage pump 19 is communicated with the branch pipe 20, the branch pipe 20 is communicated with the first water pipe 21 and the second water pipe 22 through three-way valves, the first water pipe 21 and the second water pipe 22 are respectively communicated with the two ends of the second hydroxyl generator 4, the first water pipe 21 and the second water pipe 22 are also communicated through the third water pipe 23, and the third water pipe 23 is communicated with the primary biochemical pond 1 through the water outlet pipeline 6 of the second hydroxyl generator 4; the first water pipe 21 and the second water pipe 22 are respectively provided with a first valve 24, and the two ends of the third water pipe 23 are respectively provided with a second valve 25. In the working process, the first mode is that the first valve 24 of the first water pipe 21 is opened, the first valve 24 of the second water pipe 22 is closed, the second valve 25 of the third water pipe 23, which is close to one end of the second water pipe 22, is opened, the second valve 25, which is close to one end of the first water pipe 21, is closed, the sewage in the primary biochemical tank 1 is pumped into the branch pipe 20 through the water inlet pipe 5 of the second hydroxyl generator 4 by the sewage pump 19, the sewage enters the second hydroxyl generator 4 along the first water pipe 21, the second hydroxyl generator 4 is used for generating hydroxyl free radicals, so that organic pollutants in the sewage are oxidized into carbon dioxide and water, the effect of purifying the sewage is achieved, meanwhile, the ammonia nitrogen pollutants in the sewage can be degraded, the majority of the pollutants purified by the second hydroxyl generator 4 have good sedimentation performance, the treated sewage flows into the water outlet pipe 6 of the second hydroxyl generator 4 through the third water pipe 23, then flows back into the primary biochemical tank 1, and the majority of the pollutants treated by the second hydroxyl generator 4 are deposited at the bottom of the primary biochemical tank 1 or the biological sloping plate 7, the turbidity of the biological sloping plate is reduced, and the turbidity of the biological membrane is realized. The second mode is that the first valve 24 of the first water pipe 21 is closed, the first valve 24 of the second water pipe 22 is opened, the second valve 25 of the third water pipe 23 close to one end of the second water pipe 22 is closed, the second valve 25 close to one end of the first water pipe 21 is opened, the flow direction of sewage from the sewage pump 19 is from the branch pipe 20 to the second water pipe 22 to the second hydroxyl generator 4 to the third water pipe 23, and then flows back to the primary biochemical pond 1 from the water outlet pipeline 6 of the second hydroxyl generator 4. The two modes are mutually standby modes, when the joint of the second hydroxyl generator 4 and the first water pipe 21 is blocked, the blocked position is impacted by adopting a second mode, and the blocked position is dredged; also, when the junction of the second hydroxyl generator 4 and the second water pipe 22 is blocked, the blocked portion is impacted and unblocked in the first way.
The high dissolved oxygen tank 3 is communicated with a first hydroxyl generator 26, the structure of the first hydroxyl generator 26 is the same as that of the second hydroxyl generator 4, and the first hydroxyl generator 26 is arranged to realize the final filtering and decomposing treatment on the water body which is about to return to the fish raising barrel 28, so that the sludge in the sewage is deposited or decomposed to the greatest extent; the high dissolved oxygen pool 3 is communicated with an external water supply system to realize water supplement of the whole system; the inside of the high oxygen dissolving tank 3 is also provided with a heating mechanism, and the temperature of the water flowing into the fish raising barrel 28 can be regulated through the heating mechanism because the fish in the cultivation of raising the seedlings needs to be cultivated at a certain temperature, so that the water temperature requirement of the cultivated fish is met; in the invention, a back-pumping mechanism is arranged in the high dissolved oxygen tank 3, the back-pumping mechanism comprises a back-pumping pipe 18 positioned below an aeration pipe 16, the back-pumping pipe 18 is communicated with a back-pumping pump, a water outlet pipeline 6 of the back-pumping pump is communicated with the biological purification tank 2, and the back-pumping pump pumps water possibly with residual impurities at the bottom of the high dissolved oxygen tank 3 back to the biological purification tank 2 through the back-pumping pipe 18, so that the water quality is further improved; in addition, the back-pumping mechanism can also adopt the air stripping principle to realize back-pumping, and the specific scheme can refer to the sewage discharge mode in the fish raising barrel 28.
Working principle: when in use, oxygen-dissolved water (i.e. water after oxygenation by the high oxygen dissolving tank 3) is continuously introduced into the water inlet pipe 29, the water is sprayed out from each spray head 31 after passing through the water inlet ring pipe 30, the water level is up to the position of the second water outlet pipe 36, the water enters from the blocking net 37 of the second water outlet pipe 36, and is discharged out of the fish raising barrel 28 after passing through the second water outlet pipe 36 and the first water outlet pipe 35 in sequence, and flows into the open channel 45 (the valve of the water outlet pipe is opened in the process); continuously introducing gas into the first air inlet pipe 33 and the second air inlet pipe 34 through the air inlet main pipe 32, changing the gas in the first air inlet pipe 33 into tiny bubbles through the aeration annular pipe 42, and increasing oxygen for the fish raising barrel 28 and simultaneously causing water flow to move upwards, so that water at the bottom of the fish raising barrel 28 flows towards the aeration annular pipe 42, and further excrement can be further gathered at the bottom of the fish raising barrel 28; meanwhile, the gas in the second gas inlet pipe 34 enters the blow-down circular pipe 41 and then is discharged upwards from the blow-down pipe 38, and the gas drives the water containing the excrement at the bottom of the fish raising barrel 28 to enter the blow-down circular pipe 41 from the second through hole by the gas stripping principle, and the water flows through the blow-down pipe 38 to be discharged from the first blow-down port to the open channel 45 or flows into the shrimp raising barrel from the second blow-down port, so that the excrement at the bottom of the water pool is discharged; by the way of dirt collection and pollution discharge, the pollution discharge efficiency of the excrement in the fish raising barrel 28 is improved; when no water passes through the transparent pipe 39, the blow-down valve 40 can be closed, and the gas continuously introduced into the second air inlet pipe 34 backflushes the blockage on the small hole, and then the blockage is fished out, so that the blow-down efficiency is improved. The sewage from the open channel 45 enters the primary biochemical tank 1, the biological decomposition mechanism of the primary biochemical tank 1 decomposes and deposits the sludge in the sewage, meanwhile, the second hydroxyl generator 4 is started, the sewage of the primary biochemical tank 1 continuously enters the second hydroxyl generator 4 and flows back to the primary biochemical tank 1 to form a loop, the second hydroxyl generator 4 decomposes the ammonia nitrogen pollutants dissolved in the water by the fish excrement and residual feed of the primary biochemical tank 1, and the sediment in the sewage returned to the primary biochemical tank 1 is decomposed by the biological decomposition mechanism or deposited at the bottom of the primary biochemical tank 1; the sewage treated by the primary biochemical pool 1 enters the biological purifying pool 2, the sewage in the sewage is purified by the cooperation of tool organisms in the pool and a purifying mechanism, then flows into the secondary biochemical pool for further treatment, finally enters the high-dissolved-oxygen pool 3 for oxygenation treatment of the water in the high-dissolved-oxygen pool 3 by utilizing the oxygen supply mechanism 27 and the aeration mechanism, so that the treated water is rich in oxygen, and finally flows to the water inlet pipe 29 of the fish raising barrel 28 along the water return pipe 46 for the cultivation water of the fish raising barrel 28.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any person skilled in the art can make some changes or modifications to the equivalent embodiments without departing from the scope of the present invention, but any brief description of modification, equivalent changes and modification of the above-mentioned embodiments according to the technical substance of the present invention falls within the scope of the present invention.
Claims (9)
1. A fish raising system, characterized in that: the fish culturing device comprises a fish culturing area, a biological sewage treatment subsystem and a high dissolved oxygen pond, wherein the fish culturing area comprises at least one fish culturing barrel, the high dissolved oxygen pond is connected with an oxygen supply mechanism, a drain pipe is arranged in the fish culturing barrel, a first drain outlet of the drain pipe is communicated with an open channel, a first through hole is formed in the bottom of the fish culturing barrel, a first water outlet pipe is arranged on the first through hole and is communicated with the open channel through the first through hole, the open channel is communicated with a water inlet end of the biological sewage treatment subsystem, a water outlet end of the biological sewage treatment subsystem is communicated with the Gao Rongyang pond, and the high dissolved oxygen pond is communicated with the fish culturing barrel through a water return pipe; the Gao Rongyang pool is communicated with a first hydroxyl generator, the biological sewage treatment subsystem comprises a primary biochemical pool, a biological purification pool and a secondary biochemical pool which are sequentially communicated, the primary biochemical pool is also communicated with a second hydroxyl generator, a water inlet pipeline of the primary biochemical pool, the second hydroxyl generator and a water outlet pipeline of the second hydroxyl generator form a passage, a sewage pump is connected to the water inlet pipeline, a water outlet of the sewage pump is communicated with a branch pipe, the branch pipe is communicated with a first water pipe and a second water pipe through a three-way valve, the first water pipe and the second water pipe are respectively communicated with two ends of the second hydroxyl generator, the first water pipe and the second water pipe are also communicated through a third water pipe, and the third water pipe is communicated with the primary biochemical pool through the water outlet pipeline; the first water pipe and the second water pipe are respectively provided with a first valve, and the two ends of the third water pipe are respectively provided with a second valve.
2. A fish farming system according to claim 1, wherein: the second drain outlet is arranged on the drain pipe and is communicated with the shrimp culture barrel, and the bottom of the shrimp culture barrel is communicated with the open channel through a pipeline.
3. A fish farming system according to claim 1, wherein: the high dissolved oxygen tank is communicated with an external water supply system.
4. A fish farming system according to claim 1, wherein: a bait feeding device is arranged above the fish raising barrel.
5. A fish farming system according to claim 1, wherein: the oxygen supply mechanism comprises a nano bubble machine communicated with the high dissolved oxygen pond and an aerator communicated with the nano bubble machine.
6. A fish farming system according to claim 1, wherein: an aeration mechanism is arranged in the high-dissolved oxygen pond and comprises an aeration pipe, the aeration pipe is communicated with a blower, and the aeration pipe is arranged at the bottom of the high-dissolved oxygen pond.
7. A fish farming system according to claim 1, wherein: a back-pumping mechanism is arranged in the high dissolved oxygen tank; the back-pumping mechanism comprises a back-pumping pipe positioned at the bottom of the high-dissolved oxygen pond, the back-pumping pipe is communicated with a water inlet of a back-pumping pump, and a water outlet of the back-pumping pump is communicated with the biological sewage treatment subsystem.
8. A fish farming system according to claim 1, wherein: and a heating mechanism is further arranged in the high oxygen dissolving tank.
9. A fish farming system according to claim 1, wherein: a pollution discharge ring pipe and a second air inlet pipe are also arranged in the fish raising barrel; the middle part of the bottom of the fish raising barrel is provided with a first through hole, the first through hole is communicated with a first water outlet pipe, the sewage discharging ring pipe is sleeved outside the first water outlet pipe, and the sewage discharging ring pipe is positioned at the bottom of the fish raising barrel; the bottom of the sewage discharge ring pipe is provided with a plurality of second through holes which are uniformly distributed; the blowdown ring pipe is communicated with the second air inlet pipe; the drain pipe is communicated with the drain ring pipe.
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