CN111990319A - Seedling raising device with filtering device for flounder mariculture and seedling raising method - Google Patents
Seedling raising device with filtering device for flounder mariculture and seedling raising method Download PDFInfo
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- CN111990319A CN111990319A CN202010926256.0A CN202010926256A CN111990319A CN 111990319 A CN111990319 A CN 111990319A CN 202010926256 A CN202010926256 A CN 202010926256A CN 111990319 A CN111990319 A CN 111990319A
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- 238000001914 filtration Methods 0.000 title claims abstract description 41
- 238000009364 mariculture Methods 0.000 title claims abstract description 21
- 241000269908 Platichthys flesus Species 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000009395 breeding Methods 0.000 claims abstract description 10
- 230000001488 breeding effect Effects 0.000 claims abstract description 7
- 239000013535 sea water Substances 0.000 claims description 42
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000012258 culturing Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 7
- 241000251468 Actinopterygii Species 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 4
- 239000010419 fine particle Substances 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000009313 farming Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 241000269978 Pleuronectiformes Species 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 241000269980 Pleuronectidae Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 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
- A01K63/003—Aquaria; Terraria
-
- 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
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of 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
-
- 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
- A01K63/045—Filters 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Water Treatment By Sorption (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a breeding device with a filtering device and a breeding method for mariculture of flatfish, which comprises a shell of the breeding device, a filter box, a first fixing plate, a first rotating bolt, a rotating rod, a first spring plate, a second rotating bolt, a return spring, a second fixing plate, a second spring plate, a clamping plate, gauze, a fine filter layer, an activated carbon layer, a water outlet, a top plate, a rubber plate and an anti-slip pad, wherein the filter box is arranged in the shell of the breeding device, a backing plate is welded at the bottom of the filter box, a threaded rod is welded at the top of the backing plate, and a side plate is sleeved at the top of the threaded rod. Meanwhile, manual operation is not needed, time and labor are saved, and the use by a user is facilitated.
Description
Technical Field
The invention relates to the technical field of flounder mariculture, in particular to a fry breeding device with a filtering device and a fry breeding method for flounder mariculture.
Background
Flounder is a kind of fish, a generic name of fishes of family Pleuronectidae of class Osteichthyidae, a kind of flatfish, which is oblong, oval or rhombic, flat on the side, short and high in caudal peduncle, and generally needs to be cultured in seawater; traditional flounder mariculture is directly placed in a culture box, seawater is added through a seawater drainage tube, no filtering device is provided, seawater impurities cannot be filtered, the traditional flounder mariculture is not beneficial to culture, and the seawater drainage tube needs to be manually fixed and added with seawater, so that time and labor are wasted, the working strength is increased, and the use by a user is not beneficial; in view of these drawbacks, it is desirable to design a device and method for culturing fish fry with a filter device for mariculture of flounder.
Disclosure of Invention
The invention aims to provide a breeding device with a filtering device and a breeding method for flounder mariculture, which aim to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a seedling raising device with a filtering device for mariculture of sole fishes comprises a seedling raising device shell, a filtering box, a first fixing plate, a first rotating bolt, a rotating rod, a first spring plate, a second rotating bolt, a reset spring, a second fixing plate, a second spring plate, clamping plates, gauze, a fine filtering layer, an activated carbon layer, a water outlet, a top plate, a first self-locking nut, a side plate, a second self-locking nut, a threaded rod, a base plate, a threaded hole, a first reinforcing plate, a first spring sleeve, a compression spring, a central plate, a second spring sleeve, a second reinforcing plate, a rubber plate and a non-slip mat, wherein the filtering box is arranged inside the seedling raising device shell, the base plate is welded at the bottom of the filtering box, the threaded rod is welded at the top of the base plate, the side plate is sleeved at the top of the threaded rod, one end of the side plate is connected with the inner wall of the seedling raising device shell, the, and the first self-locking nut and the second self-locking nut are positioned at two sides of the side plate, a plurality of water outlets are arranged at the bottom of the filter box, second fixing plates are welded at two sides of the inner wall at the top of the filter box, one end of each second fixing plate is provided with a rotating rod, a second rotating bolt is sleeved at the bottom of the rotating rod and is connected with the second fixing plate, a first fixing plate is arranged at the top of the rotating rod, a first rotating bolt is sleeved at one end of the first fixing plate and is connected with the rotating rod, a first spring plate is arranged at the center of the rotating rod, a return spring is sleeved at the bottom of the first spring plate, a second spring plate is sleeved at the bottom of the return spring and is connected with the inner wall of the filter box, a clamping plate is welded at the other end of the first fixing plate, a plurality of first reinforcing plates are welded, first reinforcing plate one end welding has first spring sleeve, second spring sleeve has been cup jointed to first spring sleeve one end, second spring sleeve one end welding has well core plate, and well core plate is located first spring sleeve intraduct, the inside compression spring that has cup jointed of first spring sleeve, and compression spring is located well core plate one side, second spring sleeve one end welding has the second reinforcing plate, second reinforcing plate one end bonds and has the rubber slab, rubber slab one side bonds and has the slipmat.
A fry culturing method of a fry culturing device with a filtering device for mariculture of flounder comprises the steps of firstly, fry selection; step two, putting the fry; step three, filtering the seawater; step four, recovering the device;
in the first step, the fry selection comprises the following steps:
1) manually selecting the flounder fries which are fresh and tender in body color, fat in body, lively in motion, smooth and not dragged with mud;
2) pouring the selected fry into a basin, manually stirring water in the basin, and selecting the fry which is fast in reaction and can swim around;
in the second step, the fry feeding comprises the following steps:
1) manually filling a small amount of clean water into the shell of the fry culturing device, then pouring the fry selected in the step one 2) into the shell, and pouring the clean water again to ensure that the fry is submerged by the clean water;
2) the first self-locking nut and the second self-locking nut are clockwise rotated, so that the threaded rod moves downwards and drives the filter box to move until the water outlet at the bottom of the filter box is immersed in purified water;
in the third step, the seawater filtration comprises the following steps:
1) manually pulling the clamping plate upwards, driving the rotating rod to rotate by the clamping plate, driving the reset spring to extend by the rotating rod, enabling the reset spring to have elasticity, inserting the seawater drainage tube into the clamping plate, loosening the clamping plate, driving the rotating rod to rotate by the contraction of the reset spring to extrude the clamping plate, and clamping the seawater drainage tube by the clamping plate;
2) the other end of the seawater drainage tube is connected with a water pump, seawater is pumped into the filter box through the water pump, gravel is removed through gauze, fine particles are removed through a fine filter layer, and finally odor is removed through an activated carbon layer;
3) the filtered seawater flows into the shell of the seedling raising device through the water outlet, and then the seawater can be used for raising seedlings;
in the fourth step, when the seawater drainage tube is not used, the clamping plate is pulled upwards manually, and the seawater drainage tube is taken out for recycling.
According to the technical scheme, the center of the side plate is provided with the threaded hole, and the threaded hole is sleeved on the outer side of the threaded rod.
According to the technical scheme, the rotating holes are formed in the two ends of the rotating rod and are sleeved on the outer sides of the first rotating bolt and the second rotating bolt.
According to the technical scheme, the clamping plates and the rubber plates are provided with the plurality of clamping grooves, and the clamping grooves are sleeved on the outer sides of the first reinforcing plate and the second reinforcing plate.
According to the technical scheme, the top of the threaded rod is welded with the top plate, and the top plate is located at the top of the first self-locking nut.
According to the technical scheme, the inner wall of the filter box is bonded with the activated carbon layer, the inside of the activated carbon layer is bonded with the fine filter layer, and the inner wall of the fine filter layer is bonded with the gauze.
According to the technical scheme, ultraviolet irradiation disinfection is required after the use in the fourth step.
Compared with the prior art, the invention has the following beneficial effects:
1. the seedling raising device with the filtering device and the seedling raising method for the sea farming of the flatfish are simple in structure and convenient to operate, the elastic force provided by the reset spring is utilized to drive the rotating rod to rotate to extrude the clamping plate, the seawater drainage tube is clamped by the clamping plate, the traditional manual fixing mode is abandoned, the clamping and fixing are adopted, the fixing is firmer, the installation and the disassembly are convenient, the seawater drainage tube can be conveniently taken by a user, the distance between the clamping plates can be freely adjusted, and the seedling raising device and the seedling raising method are suitable for the seawater drainage tubes with different diameters;
2. the seedling raising device with the filtering device and the seedling raising method for the mariculture of the flounders are simple in structure and convenient to operate, the threaded rod drives the filtering box to move by screwing the first self-locking nut and the second self-locking nut, the height of the filtering box can be freely adjusted, the filtering box is prevented from influencing the movement of fish fries, meanwhile, the filtering box can be lifted to observe the filtered water quality, and the use by a user is facilitated;
3. this a device and method of growing seedlings that is used for marine culture of sole that has filter equipment simple structure, convenient operation utilizes the gauze to detach the grit, and tiny granule is detached to the meticulous filter layer of rethread, is detached the smell by the active carbon layer at last, more is favorable to the fry to grow and develops, need not manual operation simultaneously, labour saving and time saving, convenience of customers uses.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of the filter box structure of the present invention;
FIG. 4 is a cross-sectional view of the overall structure of the present invention;
FIG. 5 is an enlarged view of a component of the splint of the present invention;
FIG. 6 is a flow chart of a method of the present invention;
in the figure: 1. a seedling raising device shell; 2. a filter box; 3. a first fixing plate; 4. a first rotating bolt; 5. rotating the rod; 6. a first spring plate; 7. a second turning bolt; 8. a return spring; 9. a second fixing plate; 10. a second spring plate; 11. a splint; 12. gauze; 13. a fine filter layer; 14. an activated carbon layer; 15. a water outlet; 16. a top plate; 17. a first self-locking nut; 18. a side plate; 19. a second self-locking nut; 20. a threaded rod; 21. a base plate; 22. a threaded hole; 23. a first reinforcing plate; 24. a first spring sleeve; 25. a compression spring; 26. a center plate; 27. a second spring sleeve; 28. a second reinforcing plate; 29. a rubber plate; 30. a non-slip mat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a seedling raising device with a filtering device for mariculture of sole comprises a seedling raising device shell 1, a filtering box 2, a first fixing plate 3, a first rotating bolt 4, a rotating rod 5, a first spring plate 6, a second rotating bolt 7, a return spring 8, a second fixing plate 9, a second spring plate 10, a clamping plate 11, gauze 12, a fine filtering layer 13, an activated carbon layer 14, a water outlet 15, a top plate 16, a first self-locking nut 17, a side plate 18, a second self-locking nut 19, a threaded rod 20, a backing plate 21, a threaded hole 22, a first reinforcing plate 23, a first spring sleeve 24, a compression spring 25, a central plate 26, a second spring sleeve 27, a second reinforcing plate 28, a rubber plate 29 and an anti-slip pad 30, wherein the filtering box 2 is arranged inside the seedling raising device shell 1, the activated carbon layer 14 is bonded on the inner wall of the filtering box 2, the fine filtering layer 13 is arranged inside the activated carbon layer 14, the gauze 12 is bonded on the inner wall of the fine filter layer 13, the gauze 12, the fine filter layer 13 and the activated carbon layer 14 can carry out filtration, a backing plate 21 is welded at the bottom of the filter box 2, a threaded rod 20 is welded at the top of the backing plate 21, a side plate 18 is sleeved at the top of the threaded rod 20, one end of the side plate 18 is connected with the inner wall of the seedling raising device shell 1, a threaded hole 22 is formed in the center of the side plate 18, the threaded hole 22 is sleeved on the outer side of the threaded rod 20, the threaded rod 20 can move freely, a first self-locking nut 17 and a second self-locking nut 19 are sleeved at the top of the threaded rod 20, the first self-locking nut 17 and the second self-locking nut 19 are positioned on two sides of the side plate 18, a top plate 16 is welded at the top of the threaded rod 20, the threaded rod 20 is prevented from, a rotating rod 5 is arranged at one end of a second fixing plate 9, a second rotating bolt 7 is sleeved at the bottom of the rotating rod 5, the second rotating bolt 7 is connected with the second fixing plate 9, a first fixing plate 3 is arranged at the top of the rotating rod 5, a first rotating bolt 4 is sleeved at one end of the first fixing plate 3, the first rotating bolt 4 is connected with the rotating rod 5, rotating holes are formed at two ends of the rotating rod 5 and are sleeved at the outer sides of the first rotating bolt 4 and the second rotating bolt 7, the rotating rod 5 can freely rotate, a first spring plate 6 is arranged at the center of the rotating rod 5, a return spring 8 is sleeved at the bottom of the first spring plate 6, a second spring plate 10 is sleeved at the bottom of the return spring 8, the second spring plate 10 is connected with the inner wall of the filter box 2, a clamping plate 11 is welded at the other end of the first fixing plate 3, a plurality of first reinforcing plates 23 are welded at one end of the clamping plate 11, second spring sleeve 27 has been cup jointed to first spring sleeve 24 one end, the welding of second spring sleeve 27 one end has well core plate 26, and well core plate 26 is located inside first spring sleeve 24, the inside compression spring 25 that has cup jointed of first spring sleeve 24, and compression spring 25 is located well core plate 26 one side, the welding of second spring sleeve 27 one end has second reinforcing plate 28, a plurality of draw-in groove has all been seted up with rubber slab 29 to splint 11, and the draw-in groove cup joints in first reinforcing plate 23 and the 28 outsides of second reinforcing plate, avoid first reinforcing plate 23 and second reinforcing plate 28 to rock and drop, second reinforcing plate 28 one end bonds has rubber slab 29, rubber slab 29 one side bonds has slipmat 30.
Referring to fig. 6, the present invention provides a technical solution: a fry culturing method of a fry culturing device with a filtering device for mariculture of flounder comprises the steps of firstly, fry selection; step two, putting the fry; step three, filtering the seawater; step four, recovering the device;
in the first step, the fry selection comprises the following steps:
1) manually selecting the flounder fries which are fresh and tender in body color, fat in body, lively in motion, smooth and not dragged with mud;
2) pouring the selected fry into a basin, manually stirring water in the basin, and selecting the fry which is fast in reaction and can swim around;
in the second step, the fry feeding comprises the following steps:
1) manually filling a little clean water into the shell 1 of the fry culturing device, then pouring the fry selected in the step one 2) into the shell, and pouring the clean water again to ensure that the fry is submerged by the clean water;
2) the first self-locking nut 17 and the second self-locking nut 19 are clockwise rotated, so that the threaded rod 20 moves downwards, and the threaded rod 20 drives the filter box 2 to move until the water outlet 15 at the bottom of the filter box 2 is immersed in purified water;
in the third step, the seawater filtration comprises the following steps:
1) manually pulling the clamping plate 11 upwards, driving the rotating rod 5 to rotate by the clamping plate 11, driving the reset spring 8 to extend by the rotating rod 5, enabling the reset spring 8 to have elasticity, inserting the seawater drainage tube into the clamping plate 11, loosening the clamping plate 11, driving the rotating rod 5 to rotate by the contraction of the reset spring 8 to extrude the clamping plate 11, and clamping the seawater drainage tube by the clamping plate 11;
2) the other end of the seawater drainage tube is connected with a water pump, seawater is pumped into the filter box 2 through the water pump, gravel is removed through gauze 12, fine particles are removed through a fine filter layer 13, and finally odor is removed through an activated carbon layer 14;
3) the filtered seawater flows into the seedling raising device shell 1 through the water outlet 15 and can be used for raising seedlings;
in the fourth step, when the device is not used, the clamp plate 11 is pulled upwards manually, the seawater drainage tube is taken out, the device can be recycled, and ultraviolet irradiation disinfection is needed after use.
Based on the above, the invention has the advantages that when the invention is used, the first self-locking nut 17 and the second self-locking nut 19 are manually rotated clockwise in the seedling raising device shell 1, so that the threaded rod 20 moves downwards, the threaded rod 20 drives the filter box 2 to move until the water outlet 15 at the bottom of the filter box 2 is immersed in purified water, the clamping plate 11 is pulled upwards, the clamping plate 11 drives the rotating rod 5 to rotate, the rotating rod 5 drives the return spring 8 to extend, so that the return spring 8 has elasticity, the seawater drainage tube is inserted into the clamping plate 11, the clamping plate 11 is loosened, the return spring 8 contracts to drive the rotating rod 5 to rotate and extrude the clamping plate 11, the clamping plate 11 clamps the seawater drainage tube, the other end of the seawater drainage tube is connected into a water pump, the seawater is pumped into the filter box 2 through the water pump, gravel is removed through the gauze 12, the filtered seawater flows into the seedling raising device shell 1 through the water outlet 15, and then the seawater can be used for raising seedlings.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A breeding device with a filtering device for sea farming of sole comprises a breeding device shell (1), a filtering box (2), a first fixing plate (3), a first rotating bolt (4), a rotating rod (5), a first spring plate (6), a second rotating bolt (7), a reset spring (8), a second fixing plate (9), a second spring plate (10), a clamping plate (11), gauze (12), a fine filtering layer (13), an activated carbon layer (14), a water outlet (15), a top plate (16), a first self-locking nut (17), a side plate (18), a second self-locking nut (19), a threaded rod (20), a backing plate (21), a threaded hole (22), a first reinforcing plate (23), a first spring sleeve (24), a compression spring (25), a central plate (26), a second spring sleeve (27), a second reinforcing plate (28), a rubber plate (29) and a non-slip mat (30), the method is characterized in that: the seedling raising device comprises a seedling raising device shell (1), wherein a filter box (2) is arranged in the seedling raising device shell (1), a base plate (21) is welded at the bottom of the filter box (2), a threaded rod (20) is welded at the top of the base plate (21), a side plate (18) is sleeved at the top of the threaded rod (20), one end of the side plate (18) is connected with the inner wall of the seedling raising device shell (1), a first self-locking nut (17) and a second self-locking nut (19) are sleeved at the top of the threaded rod (20), the first self-locking nut (17) and the second self-locking nut (19) are positioned on two sides of the side plate (18), a plurality of water outlets (15) are formed in the bottom of the filter box (2), second fixing plates (9) are welded on two sides of the inner wall of the top of the filter box (2), a rotating rod (5, and the second rotating bolt (7) is connected with the second fixing plate (9), the first fixing plate (3) is arranged at the top of the rotating rod (5), the first rotating bolt (4) is sleeved at one end of the first fixing plate (3), the first rotating bolt (4) is connected with the rotating rod (5), the first spring plate (6) is arranged at the center of the rotating rod (5), the reset spring (8) is sleeved at the bottom of the first spring plate (6), the second spring plate (10) is sleeved at the bottom of the reset spring (8), the second spring plate (10) is connected with the inner wall of the filter box (2), the clamping plate (11) is welded at the other end of the first fixing plate (3), the first reinforcing plate (23) is welded at one end of the clamping plate (11), the first spring sleeve (24) is welded at one end of the first reinforcing plate (23), the second spring sleeve (27) is sleeved at one end of the first spring sleeve (24), second spring sleeve pipe (27) one end welding has well board (26), and well board (26) are located inside first spring sleeve pipe (24), compression spring (25) have been cup jointed to first spring sleeve pipe (24) inside, and compression spring (25) are located well board (26) one side, second spring sleeve pipe (27) one end welding has second reinforcing plate (28), second reinforcing plate (28) one end bonds and has rubber slab (29), rubber slab (29) one side bonding has slipmat (30).
2. A fry culturing method of a fry culturing device with a filtering device for mariculture of flounder comprises the steps of firstly, fry selection; step two, putting the fry; step three, filtering the seawater; step four, recovering the device; the method is characterized in that:
in the first step, the fry selection comprises the following steps:
1) manually selecting the flounder fries which are fresh and tender in body color, fat in body, lively in motion, smooth and not dragged with mud;
2) pouring the selected fry into a basin, manually stirring water in the basin, and selecting the fry which is fast in reaction and can swim around;
in the second step, the fry feeding comprises the following steps:
1) manually filling a little clean water into the shell (1) of the fry raising device, then pouring the fry selected in the step one 2) into the shell, and pouring the clean water again to ensure that the fry is submerged by the clean water;
2) the first self-locking nut (17) and the second self-locking nut (19) are clockwise rotated, so that the threaded rod (20) moves downwards, and the threaded rod (20) drives the filter box (2) to move until a water outlet (15) at the bottom of the filter box (2) is immersed in purified water;
in the third step, the seawater filtration comprises the following steps:
1) manually pulling the clamping plate (11) upwards, wherein the clamping plate (11) drives the rotating rod (5) to rotate, the rotating rod (5) drives the reset spring (8) to extend, so that the reset spring (8) has elasticity, the seawater drainage tube is inserted into the clamping plate (11), the clamping plate (11) is loosened, the reset spring (8) contracts to drive the rotating rod (5) to rotate to extrude the clamping plate (11), and the clamping plate (11) clamps the seawater drainage tube;
2) the other end of the seawater drainage tube is connected with a water pump, seawater is pumped into the filter box (2) through the water pump, gravel is removed through a gauze (12), fine particles are removed through a fine filter layer (13), and finally odor is removed through an activated carbon layer (14);
3) the filtered seawater flows into the shell (1) of the seedling raising device through a water outlet (15) and can be used for raising seedlings;
in the fourth step, when the seawater drainage tube is not used, the clamping plate (11) is pulled upwards manually, and the seawater drainage tube is taken out for recycling.
3. A grow nursery apparatus with a filtration device for mariculture of flounder as claimed in claim 1 wherein: the center of the side plate (18) is provided with a threaded hole (22), and the threaded hole (22) is sleeved on the outer side of the threaded rod (20).
4. A grow nursery apparatus with a filtration device for mariculture of flounder as claimed in claim 1 wherein: the rotation hole has all been seted up at dwang (5) both ends, and rotates the hole cup joint and rotate the bolt (7) outside at first rotation bolt (4) and second.
5. A grow nursery apparatus with a filtration device for mariculture of flounder as claimed in claim 1 wherein: a plurality of clamping grooves are formed in the clamping plate (11) and the rubber plate (29) and are sleeved on the outer sides of the first reinforcing plate (23) and the second reinforcing plate (28).
6. A grow nursery apparatus with a filtration device for mariculture of flounder as claimed in claim 1 wherein: the top of the threaded rod (20) is welded with a top plate (16), and the top plate (16) is located at the top of the first self-locking nut (17).
7. A grow nursery apparatus with a filtration device for mariculture of flounder as claimed in claim 1 wherein: the filter box is characterized in that an activated carbon layer (14) is bonded on the inner wall of the filter box (2), a fine filter layer (13) is bonded inside the activated carbon layer (14), and gauze (12) is bonded on the inner wall of the fine filter layer (13).
8. A method of growing fish using a device for mariculture of flounder having a filter device as claimed in claim 2, wherein: and in the fourth step, ultraviolet irradiation disinfection is required after use.
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