Seed shrimp culture system and seed shrimp culture method

Abstract

The present invention relates to the technical field related to aquatic animal breeding, and specifically to a shrimp breeding system and a shrimp breeding method. The shrimp breeding system comprises a runway, an air supply unit, a jet unit and a sedimentation unit. The runway is arranged in a rectangular shape and is paved with an anti-seepage membrane. The runway comprises two opposite long side walls, two opposite short side walls and a partition wall. The two long side walls and the two short side walls are connected to form a corner at the connection point to form a frame structure. The partition wall is located in the middle of the frame structure. The partition wall is parallel to the two long side walls, and gaps are reserved between the two ends and the two short side walls to form an annular structure. A drainage hole is also provided in a corner of the runway, and the bottom of the pool is inclined downward toward the direction of the drainage hole. The system occupies a small space and has a low investment cost. It comprises two oxygen supply systems, namely an air supply unit and a jet unit, which can avoid losses caused by damage to a single oxygen supply system or insufficient oxygen supply, thereby ensuring breeding safety.

Description

Technical Field

[0001] The invention relates to the technical field related to aquatic animal breeding, in particular to a shrimp breeding system and a shrimp breeding method. Background Art

[0002] The whiteleg shrimp is the main shrimp for farming. It is native to the tropical waters of South America. Since its introduction in 1998, it has been widely farmed in the southeastern coastal areas. Because whiteleg shrimp is an alien species, high-quality seedlings usually need to be purchased from the source of whiteleg shrimp. However, the purchased seedlings can generally only meet short-term farming needs and cannot be reproduced for a long time from generation to generation.

[0003] With the deterioration of the breeding environment, the number of diseases of white shrimp has increased, making breeding more and more difficult. The entire industry is facing severe challenges. Collecting, preserving and selecting germplasm resources is a key task. The first problem to be solved is to safely and reliably breed the breeding shrimp from generation to generation in a small area. Summary of the invention

[0004] The object of the present invention is to provide a seed shrimp culture system and a seed shrimp culture method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A shrimp breeding system, including a raceway, an air supply unit, a jet unit, and a sedimentation unit;

[0007] The runway is arranged in a rectangular shape and is paved with an impermeable membrane, including two opposite long side walls, two opposite short side walls and a partition wall. The two long side walls and the two short side walls are connected to form a corner at the connection point to form a frame structure. The partition wall is located in the middle of the frame structure. The partition wall is parallel to the two long side walls, and gaps are reserved between the two ends and the two short side walls to form a ring structure. A drainage hole is also provided in one corner of the runway, and the pool bottom is inclined downward toward the direction of the drainage hole.

[0008] In the early stage of breeding and stocking and coarsening, the air supply unit works, and in the late stage of breeding, the air supply unit and the jet unit work synchronously, and the sedimentation unit can precipitate and remove flocs in the water.

[0009] As a further solution of the present invention: the air supply unit comprises a Roots blower, a gas supply main pipe connected to the Roots blower, and a runway main pipe installed on the partition wall, the gas supply main pipe is connected to the runway main pipe at a connection, two nanotubes are respectively installed at the bottom of a side wall at each corner of the runway, the distance between the nanotubes and between the nanotubes and the pool bottom is 5 cm, so that the water flows in a counterclockwise direction along the runway;

[0010] Among them, the nanotube is connected to the runway main pipe through a PVC pipe, and a switch for adjusting the gas size of the nanotube is installed at the first connecting pipe position which is convenient for operation. An air stone is arranged between the long side wall and the partition wall with an interval of 1m. The air stone is connected to the runway main pipe through an air pipe, and a gas regulating valve is used at the joint between the air pipe and the runway main pipe to adjust the gas size. A rubber wire is provided directly above the air stone to support and fix the air pipe parallel to the long side wall.

[0011] As a further solution of the present invention: the jet unit includes a filter screen frame arranged in the middle of the short side wall on one side of the deep water area of ​​the runway and a centrifugal pump installed above the filter screen frame, and the water suction pipe of the centrifugal pump extends into the filter screen frame;

[0012] A water supply pipe connected to the water outlet of the centrifugal pump is also installed on the peripheral wall of the runway to form a closed loop. According to the ejector and the installation direction, multiple ejectors are installed in a V shape along the peripheral wall of the runway and the partition wall. The interval between two adjacent ejectors is 3-4m, and the ejector is connected to the water supply pipe through a PVC pipe. A switch for adjusting the water flow size is installed at the second connecting pipe position for convenient operation.

[0013] As a further solution of the present invention: the sedimentation unit includes a support and a barrel installed on the support, and further includes:

[0014] A disc body is sealingly and slidably disposed in the barrel body, and divides the barrel body into an upper chamber and a lower chamber, wherein the upper chamber is used to contain water to be precipitated, and the lower chamber is used to contain water after the precipitation is removed, and the upper part of the disc body is provided with a conical concave surface, and the interior is hollow, and the disc body is connected to a lifting drive mechanism installed on the support;

[0015] The inside of the disk body is provided with a plurality of columnar channels, the columnar channels are used to connect the upper chamber and the lower chamber, so that the water in the upper chamber can be transferred to the lower chamber, the bottom of the disk body is also provided with a switching mechanism for switching the conduction and blocking states of the columnar channels, and the disk body is also provided with a sediment transfer mechanism for transferring the sediment to the outside of the barrel body;

[0016] When the lifting drive mechanism drives the disc to move upward into the upper chamber, the sediment transfer mechanism is triggered, which can cause the sediment on the conical concave surface to enter the disc and transfer to the outside of the barrel body. When the lifting mechanism drives the disc to move downward into the lower chamber, the disc can push the water in the lower chamber to the outside of the barrel body, and the switching mechanism is triggered when the disc descends to the end of the stroke, so that the columnar channel is opened and the water in the upper chamber is replenished into the lower chamber.

[0017] As a further solution of the present invention: the top of the barrel body is provided with a plurality of through holes, the disc body is provided with a plurality of circular holes equidistantly along the circumference, and the bottom of the disc body is also provided with a plurality of conduits, the conduits penetrate the bottom of the barrel body and are sealed and slidably connected with the barrel body, and the sediment can enter the inside of the disc body through the circular holes and then be discharged from the outside of the barrel body through the conduits;

[0018] The sediment transfer mechanism includes a vertical cylinder fixed at the center of the disk body, a sealing member slidably arranged on the vertical cylinder and sealingly fitted with the conical concave surface, a telescopic column is sealingly and slidably arranged in the vertical cylinder, the telescopic column is connected to a first cylindrical spring arranged in the vertical cylinder, the telescopic column cooperates with a limit rod fixed on the top wall of the barrel body, a guide arm is also fixed on the vertical cylinder, a slider is slidably arranged on the guide arm, the slider is respectively connected to the telescopic column and the sealing member through a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively hinged to the slider and the telescopic column, and the two ends of the second connecting rod are respectively hinged to the slider and the sealing member.

[0019] As a further solution of the present invention: the lifting drive mechanism includes two guide rails fixed on the support and an assembly plate slidably connected to the two guide rails, a vertical shaft is rotatably mounted on the assembly plate, the vertical shaft is rotatably connected to the bottom of the disk body, the vertical shaft passes through the bottom center of the barrel body and is sealed and slidably connected to the barrel body, and both ends of the assembly plate are respectively connected to a group of threaded driving parts arranged on the support.

[0020] As a further solution of the present invention: the switching mechanism includes an axial sliding assembly installed on the bottom of the disk body and connected to the vertical shaft, and an instantaneous trigger assembly installed on the assembly plate and connected to the vertical shaft, the axial sliding assembly includes a ring body sleeved on the vertical shaft and threadedly connected to the vertical shaft, and a plurality of columns fixedly connected to the ring body;

[0021] The column is sealingly and slidably fitted with the columnar channel, and a groove with one end being open is provided on the column.

[0022] As a further solution of the present invention: the instantaneous trigger assembly includes a transverse tube slidably arranged on the assembly plate and movable along the length direction of the assembly plate, and a transverse rod slidably engaged with the transverse tube, the transverse rod is fixed to a boss slidably arranged in the transverse tube, and the outer periphery of the transverse rod is provided with a second columnar spring and a third columnar spring whose head ends are connected to the boss, and the tail ends of the second columnar spring and the third columnar spring abut against the inner wall of the transverse tube.

[0023] Among them, one end of the cross bar is connected to the vertical shaft through a gearing structure, and the other end is connected to an upper limit structure arranged on the support.

[0024] As a further solution of the present invention: the gearing structure comprises a gear rotatably mounted on the assembly plate and a toothed plate fixedly connected to the crossbar and meshing with the gear, the rotating shaft of the gear is connected to the vertical shaft through a transmission belt, and a convex column is fixedly provided on the outer wall of the horizontal cylinder;

[0025] The limiting structure includes a limiting plate fixedly mounted on the support, and the limiting plate is provided with a first groove body and a second groove body respectively adapted to the cross bar and the boss, and an end of the cross bar away from the tooth plate and the boss respectively extend into the first groove body and the second groove body and are slidably connected to the limiting plate.

[0026] The method for breeding shrimps adopts the breeding system, controls the water volume, adds sugar and beneficial bacteria to quickly form biological flocs in the early stage of breeding, and monitors and treats the ammonia nitrogen and nitrite content to be kept below 1 mg / L, the floc volume to be kept at 2-5‰, the dissolved oxygen level to be not less than 6 mg / L, and the total alkalinity to be not less than 160 mg / L during the breeding process;

[0027] During the breeding process, the ammonia nitrogen and nitrite content in the water body is lower than 1mg / L. When the content is not lower than 1mg / L, 10ppm sugar is added every day; adding sugar can only reduce the ammonia nitrogen content, but not the nitrite content, and when the content exceeds 10mg / L, nitrifying bacteria are added every day until the nitrite content decreases;

[0028] The floc content in the water body is maintained at 2-5‰. In the early stage of aquaculture, the floc content is lower than 2‰, and sugar and beneficial bacteria are added. In the middle stage of aquaculture, when the floc content is greater than 5‰, the sedimentation unit is used to precipitate the flocs. In the late stage of aquaculture, when the floc content cannot be kept below 5‰ by the sedimentation unit alone, 10cm of water is replaced every week;

[0029] In the early stage of aquaculture, only the air supply unit is used, and the water flow is slow. The jet unit is used 20 days after the seedlings are released, and the air supply unit is stopped until the middle and late stages of aquaculture, when only the jet unit cannot keep the dissolved oxygen in the water above 6 mg / L, the air supply unit is turned on;

[0030] During the breeding process, the total alkalinity of the water should be maintained above 160 mg / L. When its content is lower than 160 mg / L, baking soda should be added.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The system occupies a small space and has low investment cost. It includes two oxygen supply systems, the air supply unit and the jet unit, which can avoid losses caused by damage to a single oxygen supply system or insufficient oxygen supply, and ensure aquaculture safety.

[0033] Secondly, by applying the floc farming model, beneficial bacteria in the water form a dominant flora, and the farming is safe and controllable; and the amount of water change is small, which reduces the risk of introducing pathogens due to water change. The farming method is simple and has low requirements for farmers;

[0034] In addition, the sedimentation unit in the present application uses a disc to separate the barrel into two upper and lower chambers. The water body is statically precipitated in the upper chamber. First, the water body is lifted up, and the suspended matter on the surface of the water body is removed through multiple through holes. At the same time, the sediment in the water body is deposited on the conical concave surface of the disc. The circular holes on the disc are connected, so that the sediment can be removed through the disc and the conduit, and used as land fertilizer or as waste after dehydration, so as to realize the recycling of waste;

[0035] Then, the disc descends, on the one hand, it can discharge the treated water in the lower chamber into the runway, achieving a balanced effect of the water content in the runway, and on the other hand, the switching mechanism is triggered at the end of the disc's descending stroke, connecting the cylindrical pipe in the disc, so that during the disc's upward resetting process, the purified water is stored in the lower chamber through the cylindrical pipe. Therefore, the sedimentation unit can realize the automatic separation function of sediment and suspended matter through mechanical interlocking, simplifying the process of shrimp breeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The present invention is a structural schematic diagram of an embodiment of a shrimp breeding system.

[0037] Figure 2 This is a schematic diagram of the structure of a sedimentation unit in an embodiment of a shrimp breeding system.

[0038] Figure 3 This is a schematic structural diagram from another angle of the sedimentation unit in one embodiment of the seed shrimp farming system.

[0039] Figure 4This is a schematic structural diagram from another angle of the sedimentation unit in one embodiment of the shrimp breeding system.

[0040] Figure 5 This is a schematic structural diagram from another angle of the sedimentation unit in one embodiment of the shrimp breeding system.

[0041] Figure 6 This is a schematic diagram of the internal structure of a barrel in one embodiment of a shrimp breeding system.

[0042] Figure 7 This is a half-section view of a barrel in one embodiment of a shrimp breeding system.

[0043] Figure 8 for Figure 7 A magnified view of the structure at center.

[0044] Fig. 9 This is a structural exploded diagram of a sediment transfer mechanism in one embodiment of a seed shrimp farming system.

[0045] Fig.10 for Fig. 9 Schematic diagram of the structure from another angle.

[0046] Fig.11 It is a schematic diagram of the structure of the switching mechanism in one embodiment of the seed shrimp breeding system.

[0047] Fig.12 The present invention is a schematic structural diagram of a limiting plate in an embodiment of a shrimp breeding system.

[0048] In the figure: 101, long side wall; 102, short side wall; 103, corner; 111, partition wall; 121, drainage hole; 201, runway main pipe; 202, connection; 211, nanotube; 212, first connecting pipe; 221, air stone; 222, air pipe; 301, filter frame; 311, centrifugal pump; 312, water suction pipe; 321, water delivery main pipe; 331, ejector and installation direction indicator; 332, second connecting pipe; 5, support; 6, barrel; 601, through hole; 602, limit rod; 7, annular receiving member; 8, disc; 801, round hole; 802, vertical cylinder; 9, guide tube; 10, guide arm; 11, first connecting rod; 12. Second connecting rod; 13. Sliding block; 14. Telescopic column; 15. Blocking piece; 16. First cylindrical spring; 17. Columnar channel; 18. Column; 1801. Groove; 19. Vertical shaft; 20. Ring body; 21. Guide rail; 22. Assembly plate; 23. Boss; 24. Second cylindrical spring; 25. Third cylindrical spring; 26. Transverse cylinder; 2601. Boss; 27. Cross bar; 28. Limiting plate; 2801. First slide slot; 2802. Second slide slot; 2803. Third slide slot; 2804. Fourth slide slot; 2805. Fifth slide slot; 2806. Sixth slide slot; 2807. Seventh slide slot; 29. ​​Tooth plate; 30. Gear. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0051] See also Figure 1In an embodiment of the present invention, a shrimp breeding system includes a runway, an air supply unit, a jet unit and a sedimentation unit 4; the runway is arranged in a rectangular shape and is paved with an impermeable membrane, including two opposite long side walls 101, two opposite short side walls 102 and a partition wall 111, the two long side walls 101 and the two short side walls 102 are connected, and a corner 103 is formed at the connection point to form a frame structure, the partition wall 111 is located in the middle of the frame structure, the partition wall 111 is parallel to the two long side walls 101, and gaps are reserved between the two ends and the two short side walls 102 to form a ring structure, and a drainage hole 121 is also provided in a corner of the runway, and the pool bottom is inclined downward toward the direction of the drainage hole 121;

[0052] In the early stage of breeding and stocking, the air supply unit works, and in the late stage of breeding, the air supply unit and the jet unit work synchronously, and the sedimentation unit 4 can precipitate and remove flocs in the water.

[0053] Furthermore, the corner 103 is trapezoidal or arc-shaped, so as not to block the flow of water and hide solid waste. Secondly, since the drainage hole 121 is provided at one corner of the runway and the pool bottom is slightly inclined downward toward the drainage hole 121, it is convenient to quickly drain and clean the pool.

[0054] In addition, preferably, the anti-seepage membrane is a national standard anti-seepage membrane with a thickness of 1.0 mm.

[0055] In the specific implementation, only the air supply unit is used in the early stage of stocking and coarsening, the water flow is slow, the shrimp fry are easy to prey on, and will not cause damage to the shrimp fry; in the late stage of breeding, the air supply unit and the jet unit are turned on at the same time, which can ensure that the water body has sufficient dissolved oxygen in the late stage of breeding; installing two oxygen supply systems is also a guarantee for breeding safety. When one system fails or is damaged, oxygen can be supplied by another system to ensure breeding safety. The sedimentation unit 4 can precipitate and remove flocs in the water body to maintain the floc content in the water body.

[0056] The air supply unit includes a Roots blower, a gas supply main pipe connected to the Roots blower, and a runway main pipe 201 installed on the partition wall 111. The gas supply main pipe is connected to the runway main pipe 201 at a connection 202. Two nanotubes 211 are installed at the bottom of a side wall in each corner of the runway. The distance between the nanotubes 211 and the distance between the nanotubes 211 and the pool bottom is 5 cm, so that the water flows counterclockwise along the runway; the nanotubes 211 are connected to the runway main pipe 201 through a PVC pipe. A switch for adjusting the gas volume of the nanotube 211 is installed at the position of the first connecting pipe 212 for easy operation. An air stone 221 is arranged between the long side wall 101 and the partition wall 111 with an interval of 1m. The air stone 221 is connected to the runway main pipe 201 through an air pipe 222. The joint between the air pipe 222 and the runway main pipe 201 uses a gas regulating valve to adjust the gas volume. A rubber wire parallel to the long side wall 101 is stretched directly above the air stone 221 to support and fix the air pipe 222.

[0057] The jet unit includes a filter frame 301 arranged in the middle of the short side wall 102 on one side of the deep water area of ​​the runway, and a centrifugal pump 311 installed above the filter frame 301, and a water suction pipe 312 of the centrifugal pump 311 extends into the filter frame 301; a water delivery pipe 321 connected to the water outlet of the centrifugal pump 311 is also installed on the peripheral wall of the runway to form a closed loop, and a plurality of ejectors are installed in a V shape along the peripheral wall of the runway and the partition wall 111 according to the ejector and the installation direction indicator 331, and the interval between two adjacent ejectors is 3-4m, and the ejector is connected to the water delivery pipe 321 through a PVC pipe, and a switch for adjusting the water flow size is installed at the position of the second connecting pipe 332 for convenient operation.

[0058] Specifically, the filter frame 301 is composed of a rectangular frame assembled by a PVC tube filled with fine sand and a nylon mesh bag. A rope is sewn around the mouth of the nylon mesh bag, which can be shrunk and tied to tighten the mouth. The main function of the filter frame 301 is to block large particles such as shrimps and shrimp shells. The filter frame is placed in the middle of the short side wall 102 on one side of the deep water area of ​​the runway, and the bottom is raised with stones to keep it off the ground.

[0059] During specific implementation, only the air supply unit is operated in the early stage of stocking; after the roughing is completed, the jet unit is turned on and the gas supply system is turned off; in the later stage of breeding, the gas supply system and the jet unit are operated at the same time to ensure that the dissolved oxygen is not less than 6 mg / L. During the breeding process, beneficial bacteria and brown sugar are added to the water body to form stable biological flocs in the water body. The biological flocs decompose the residual bait and feces on the bottom of the pond and in the water body, inhibit the growth of harmful bacteria in the water body, and keep the ammonia nitrogen and nitrite content at a low level. When the floc content is greater than 5‰ in the middle of breeding, the sedimentation barrel is activated; when the floc amount cannot be kept below 5‰ by the sedimentation barrel in the later stage of breeding, 10 cm of treated seawater is replaced once a week. The present invention requires a small space, is simple to operate, has a low investment cost, and is safe and controllable in breeding.

[0060] It should be added that biofloc is a flocculent formed by bacteria, floating plants and animals, organic debris and inorganic substances, and has been successfully used in the cultivation of white shrimp. It can decompose the decaying debris, leftover bait and feces in the aquaculture water, effectively control the content of ammonia nitrogen, nitrite, etc. in the water, purify the water quality, reduce the amount of water change, and thus solve the problem of introducing pathogens due to large-scale water changes. At the same time, biofloc also contains a large number of beneficial bacteria, which can inhibit the growth of harmful bacteria in the aquaculture water, improve the survival rate of aquaculture objects, and thus ensure aquaculture safety.

[0061] Please refer again Figure 2-Figure 12 The sedimentation unit 4 includes a support 5 and a barrel 6 mounted on the support 5, and further includes:

[0062] The disc 8 is sealed and slidably disposed in the barrel 6, and divides the barrel 6 into an upper chamber and a lower chamber. The upper chamber is used to accommodate the water to be precipitated, and the lower chamber is used to accommodate the water after the precipitation is removed. The upper part of the disc 8 is provided with a conical concave surface, and the inside is hollow. The disc 8 is connected to the lifting drive mechanism installed on the support 5;

[0063] The inside of the disk body 8 is provided with a plurality of columnar channels 17, and the columnar channels 17 are used to connect the upper chamber and the lower chamber so that the water in the upper chamber can be transferred to the lower chamber. The bottom of the disk body 8 is also provided with a switching mechanism for switching the conduction and blocking states of the columnar channels 17. The disk body 8 is also provided with a sediment transfer mechanism for transferring the sediment to the outside of the barrel body 6;

[0064] When the lifting drive mechanism drives the disc 8 to move upward into the upper chamber, the sediment transfer mechanism is triggered, which can cause the sediment located on the conical concave surface to enter the disc 8 and transfer to the outside of the barrel body 6. When the lifting mechanism drives the disc 8 to move downward into the lower chamber, the disc 8 can push the water in the lower chamber to the outside of the barrel body 6, and the switching mechanism is triggered when the disc 8 descends to the end of the stroke, so that the columnar channel 17 is turned on, and the water in the upper chamber is replenished into the lower chamber.

[0065] It should be supplemented that the water to be treated first enters the upper chamber, and after a certain period of sedimentation, the sediment falls onto the concave concave surface on the upper part of the disc 8. Then, the lifting drive mechanism works, first driving the disc 8 to rise a certain distance. During this process, the sediment transfer mechanism is triggered, which allows the sediment to enter the inside of the disc 8 and then transfer to the outside of the barrel 6. Subsequently, the disc 8 moves downward again, squeezing the water in the lower chamber, so that the water in the lower chamber is discharged and flows back into the runway, achieving the balance of the water content in the runway. When the disc 8 moves down to the end of its stroke, the switching mechanism is triggered to switch the blocking state of the columnar channel 17 to the conducting state, so that the water in the upper chamber and the sediment removal has been completed flows into the lower chamber through the columnar channel 17. At the same time, the disc 8 rises and resets.

[0066] It should be pointed out that an access pipe is installed at the upper part of the barrel body 6, and the access pipe is used to receive the water to be treated so that the water can be introduced into the upper chamber. An outlet pipe is installed at the bottom of the barrel body 6, and a one-way valve is installed on the outlet pipe.

[0067] Please refer again Figure 7-10The top of the barrel body 6 is provided with a plurality of through holes 601, the conical concave surface of the disc body 8 is equidistantly provided with a plurality of circular holes 801 along the circumference, and the bottom of the disc body 8 is also provided with a plurality of conduits 9, the conduits 9 penetrate the bottom of the barrel body 6 and are sealed and slidably connected with the barrel body 6, and the sediment can enter the inside of the disc body 8 through the circular holes 801, and then be discharged from the outside of the barrel body 6 through the conduits 9; the sediment transfer mechanism includes a vertical cylinder 802 fixed at the center of the disc body 8, a sealing member 15 slidably arranged on the vertical cylinder 802 and sealingly fitted with the conical concave surface, and a sealing sliding member 15 in the vertical cylinder 802 is sealed and slidably connected with the conical concave surface. A telescopic column 14 is provided, and the telescopic column 14 is connected to a first cylindrical spring 16 provided in the vertical cylinder 802. The telescopic column 14 cooperates with a limit rod 602 fixed on the top wall of the barrel body 6. A guide arm 10 is also fixed on the vertical cylinder 802. A slider 13 is slidably provided on the guide arm 10. The slider 13 is respectively connected to the telescopic column 14 and the blocking member 15 through a first connecting rod 11 and a second connecting rod 12. The two ends of the first connecting rod 11 are respectively hinged to the slider 13 and the telescopic column 14, and the two ends of the second connecting rod 12 are respectively hinged to the slider 13 and the blocking member 15.

[0068] When the water in the upper chamber has completed a certain period of sedimentation, the lifting drive mechanism works to drive the disc 8 to move up a certain distance. During this process, the impurities that are lighter and suspended on the surface of the water are discharged from the barrel 6 through the through hole 601. In this regard, an annular receiving member 7 is provided on the outer wall of the barrel 6 to collect suspended impurities and a small amount of water. The telescopic column 14 will contact the limiting rod 602. Under the limiting action of the limiting rod 602, the telescopic column 14 will shrink into the vertical cylinder 802, and the first column spring 16 will be compressed. At this time, the telescopic column 14 pushes the first connecting rod 11 to The slider 13 is moved on the guide arm 10 to slide away from the vertical cylinder 802, and the slider 13 pulls the blocking member 15 on the vertical cylinder 802 to slide away from the disk body 8 through the second connecting rod 12, so that the multiple circular holes 801 are connected. Therefore, the sediment on the concave concave surface can enter the interior of the disk body 8 through the circular holes 801, and then be discharged to the outside of the barrel body 6 through the multiple conduits 9, completing the sediment transfer process. Subsequently, the disk body 8 is moved down and reset, and the first cylindrical spring 16 rebounds to prompt the components to reset, and the blocking member 15 blocks the multiple circular holes 801 again.

[0069] Please refer again Figure 4 , Figure 8 , Fig.10 , Fig.11 as well as Fig.12The lifting drive mechanism includes two guide rails 21 fixed on the support 5 and an assembly plate 22 slidably connected to the two guide rails 21. A vertical shaft 19 is rotatably mounted on the assembly plate 22. The vertical shaft 19 is rotatably connected to the bottom of the disk body 8. The vertical shaft 19 passes through the bottom center of the barrel body 6 and is sealed and slidably connected to the barrel body 6. The two ends of the assembly plate 22 are respectively connected to a group of threaded driving members provided on the support 5. When the assembly plate 22 is lifted and lowered under the drive of the threaded driving members, the vertical shaft 19 and the disk body 8 connected thereto are lifted and lowered synchronously with the assembly plate 22.

[0070] In detail, the threaded drive member includes a screw rod rotatably mounted on the support 5 and a drive motor mounted on the support 5, the screw rod is connected to the output end of the drive motor, and the screw rod passes through the assembly plate 22, and the assembly plate 22 is threadedly connected to the screw rod.

[0071] The switching mechanism includes an axial sliding assembly mounted on the bottom of the disk body 8 and connected to the vertical shaft 19, and an instantaneous trigger assembly mounted on the assembly plate 22 and connected to the vertical shaft 19. The axial sliding assembly includes a ring body 20 sleeved on the vertical shaft 19 and threadedly connected to the vertical shaft 19, and a plurality of columns 18 fixedly connected to the ring body 20. The column 18 is sealed and slidably engaged with the cylindrical channel 17, and a groove 1801 with a conductive lower end is provided on the column 18.

[0072] When the threaded drive member is working, it can drive the assembly plate 22 to slide on the guide rail 21. When the sediment on the concave concave surface is completely removed, the assembly plate 22 will drive the disc 8 to move downward toward the lower chamber through the vertical shaft 19. Therefore, the disc 8 can push the water in the lower chamber (i.e., the water that has been discharged from the sediment) to the outside of the barrel 6. The instantaneous trigger component triggers the movement when the disc 8 descends to the end of the stroke, and drives the vertical shaft 19 to rotate. Therefore, the ring body 20 is threadedly matched with the vertical shaft 19. The ring body 20 moves on the vertical shaft 19 close to the disk body 8, and at the same time drives the column 18 to rise on the disk body 8, so that the groove 1801 leaks out above the conical concave surface, so that the columnar channel 17 is opened, and then the threaded drive member drives the assembly plate 22 to rise, and the space in the lower chamber is vacated. At the same time, the water in the upper chamber can flow into the lower chamber through the passage formed between the groove 1801 and the inner wall of the columnar channel 17, and will be guided back to the runway during the next operation to maintain the water balance of the runway.

[0073] The instantaneous trigger assembly includes a transverse tube 26 slidably disposed on the assembly plate 22 and movable along the length direction of the assembly plate 22, and a cross bar 27 slidably sleeved with the transverse tube 26. The cross bar 27 is fixed to a boss 23 slidably disposed in the transverse tube 26, and the outer periphery of the cross bar 27 is sleeved with a second column spring 24 and a third column spring 25 respectively located on both sides of the boss 23 and connected to the boss 23 at their head ends, and the tail ends of the second column spring 24 and the third column spring 25 abut against the inner wall of the transverse tube 26. One end of the cross bar 27 is connected to the vertical shaft 19 through a toothed structure, and the other end is connected to a limiting structure disposed on the support 5.

[0074] The toothing structure includes a gear 30 rotatably mounted on the assembly plate 22 and a tooth plate 29 fixedly connected to the cross bar 27 and meshing with the gear 30. The rotating shaft of the gear 30 is connected to the vertical shaft 19 through a transmission belt. The outer wall of the horizontal cylinder 26 is also fixedly provided with a boss 2601. The limiting structure includes a limiting plate 28 fixedly mounted on the support 5. The limiting plate 28 is provided with a first groove body and a second groove body respectively adapted to the cross bar 27 and the boss 2601. The end of the cross bar 27 away from the tooth plate 29 and the boss 2601 extend into the first groove body and the second groove body respectively and are slidably connected to the limiting plate 28.

[0075] In detail, the first slot body includes a second slot 2802, a third slot 2803, a fourth slot 2804 and a fifth slot 2805 connected to form a rectangular shape, and also includes a first slot 2801 connecting the second slot 2802 and the fifth slot 2805; the first slot 2801 is located on the extension line of the second slot 2802;

[0076] Secondly, the second slot body includes a sixth slide slot 2806 and a seventh slide slot 2807 connected to each other, the sixth slide slot 2806 is vertically arranged, and the seventh slide slot 2807 is inclinedly arranged; the sixth slide slot 2806 is parallel to the first slide slot 2801, and the length of the sixth slide slot 2806 is greater than that of the first slide slot 2801.

[0077] Initially, one end of the cross bar 27 connected to the limiting structure (hereinafter referred to as the tail end of the cross bar 27) is located at the intersection of the first slide groove 2801, the second slide groove 2802 and the fifth slide groove 2805, and the boss 2601 is located in the sixth slide groove 2806;

[0078] When the disk 8 moves upwards by one end into the upper chamber to remove the suspended matter on the water surface and the sediment on the concave concave surface, the tail end of the crossbar 27 moves along the first chute 2801 away from the second chute 2802, and the protrusion 2601 moves in the sixth chute 2806 away from the seventh chute 2807;

[0079] In the subsequent process of the disk body 8 moving downward into the lower chamber, the rear end of the cross bar 27 moves along the first slide groove 2801 and the second slide groove 2802, and accordingly, the boss 2601 moves along the sixth slide groove 2806 and the seventh slide groove 2807 in sequence, and when the boss 2601 moves along the seventh slide groove 2807 (at this time, the boss 2601 is already located in the second slide groove 2802), the boss 2601 will drive the horizontal cylinder 26 to give way, and the second column spring 24 will be compressed. When the disk body 8 moves downward to the end of the stroke, the cross bar 27 moves along the first slide groove 2801 and the second slide groove 2802. The tail end of the cross bar 27 reaches the intersection of the second slide groove 2802 and the third slide groove 2803. At this time, the second column spring 24 rebounds, causing the cross bar 27 to slide quickly relative to the horizontal cylinder 26. The tail end of the cross bar 27 moves to the intersection of the third slide groove 2803 and the fourth slide groove 2804, and the toothed plate 29 moves with the cross bar 27 and drives the gear 30 to rotate. The rotating shaft of the gear 30 drives the vertical shaft 19 to rotate through the transmission belt, so that the ring body 20 and the vertical shaft 19 are threadedly matched and the columnar channel 17 is connected.

[0080] Subsequently, the disc body 8 rises, and the water in the upper chamber can be replenished into the lower chamber whose space is gradually increasing. Correspondingly, the tail end of the cross bar 27 moves along the fourth slide groove 2804 toward the fifth slide groove 2805, and the boss 2601 drives the horizontal cylinder 26 to move under the action of the seventh slide groove 2807, causing the third column spring 25 to be compressed. When the disc body 8 returns to its initial height, the boss 2601 is already in the sixth slide groove 2806, and the tail end of the cross bar 27 reaches the intersection of the fourth slide groove 2804 and the fifth slide groove 2805. At this time, the third column spring 25 rebounds, and the tail end of the cross bar 27 is reset to the intersection of the first slide groove 2801, the second slide groove 2802 and the fifth slide groove 2805. The cross bar 27 drives the tooth plate 29 to reset quickly, and the tooth plate 29 causes the gear 30 to rotate again (opposite to the previous rotation direction), and the ring body 20 is threadedly matched with the vertical shaft 19 and moves downward on the vertical shaft 19, and the column 18 moves downward and resets in the columnar channel 17 to block the columnar channel 17. Then, the water to be treated can be replenished into the upper chamber.

[0081] As another embodiment of the present invention, a method for breeding shrimp is also proposed, wherein the breeding system is used, and the amount of water is controlled, sugar and beneficial bacteria are added to quickly form biological flocs in the early stage of breeding, and the ammonia nitrogen and nitrite content levels are maintained below 1 mg / L through monitoring and treatment during the breeding process, the floc volume is maintained at 2-5‰, the dissolved oxygen level is not less than 6 mg / L, and the total alkalinity is not less than 160 mg / L;

[0082] During the breeding process, the ammonia nitrogen and nitrite content in the water body is lower than 1mg / L. When the content is not lower than 1mg / L, 10ppm sugar is added every day; adding sugar can only reduce the ammonia nitrogen content, but not the nitrite content. When the content exceeds 10mg / L, nitrifying bacteria are added every day until the nitrite content decreases.

[0083] The floc content in the water body is maintained at 2-5‰. In the early stage of aquaculture, when the floc content is lower than 2‰, sugar and beneficial bacteria are added. In the middle stage of aquaculture, when the floc content is greater than 5‰, the sedimentation unit 4 is used to precipitate the flocs. In the late stage of aquaculture, when the floc content cannot be kept below 5‰ by sedimentation unit 4 alone, 10cm of water is replaced every week;

[0084] In the early stage of aquaculture, only the air supply unit is used, and the water flow is slow. The jet unit is used 20 days after the seedlings are released, and the air supply unit is stopped until the middle and late stages of aquaculture, when only the jet unit cannot keep the dissolved oxygen in the water above 6 mg / L, the air supply unit is turned on;

[0085] During the breeding process, the total alkalinity of the water should be maintained above 160 mg / L. When its content is lower than 160 mg / L, baking soda should be added.

[0086] When cleaning the runway after the aquaculture, first clean the runway and add water to cover the original aquaculture water level, add chlorine agent and start the jet unit for at least 24 hours before draining, add new water again to the previous water level, start the jet unit for 24 hours before draining;

[0087] When other breeding tracks have better floc water, some of the floc water can be introduced into the track where the seedlings are newly placed. This will enable the track where the seedlings are newly placed to quickly form flocs, fully decompose the remaining bait and feces, and quickly form beneficial bacteria.

[0088] Example 1

[0089] On the 5th day before stocking, add 30cm of chlorine-treated water, start the gas supply unit, add sodium bicarbonate to adjust the total alkali to above 160mg / L, on the 4th day before stocking, add 50g of powder, 150g of brown sugar and 200g of beneficial bacteria to 50L of water, add the runway after aeration and fermentation for 24h, add 0.1ppm of beneficial bacteria every day on the second day before stocking and the first day before stocking, add beneficial bacteria every day after stocking, add 10cm of water every week after stocking until the water level reaches 80cm;

[0090] During the breeding process, the ammonia nitrogen content is kept below 1 mg / L. When the ammonia nitrogen content is higher than 1 mg / L, sugar is added to keep it at 1 mg / L. When the nitrite content in the water exceeds 10 mg / L, nitrifying bacteria are added every day until the nitrite content decreases.

[0091] During the breeding process, the floc content is maintained at 2-5‰. In the early stage of breeding, when the floc content is 2‰, sugar is added to make it higher than 2‰. In the middle stage of breeding, when the floc content is greater than 5‰, the sedimentation unit 4 is used to precipitate the flocs. In the late stage of breeding, when the floc content cannot be kept below 5‰ by only the sedimentation unit 4, 10cm of water is changed every week.

[0092] During the breeding process, the total alkalinity of the water should be kept above 160 mg / L. When the content is lower than 160 mg / L, baking soda should be added.

[0093] On the 20th day after stocking, turn off the air supply unit and turn on the jet unit to keep the dissolved oxygen in the water above 6 mg / L. When the dissolved oxygen in the water is lower than 6 mg / L, turn on the air supply unit and use the jet unit and air supply unit at the same time to keep the dissolved oxygen in the water at 6 mg / L.

[0094] 20,800 PL13 shrimp fry were put into the culture tank and cultured for 142 days. The average weight was 19 g. 20,020 shrimps were harvested with a survival rate of 96%.

[0095] Example 2

[0096] The runway used is not the same runway as in Example 1, but the runway construction and all facilities are exactly the same as in Example 1;

[0097] On the fifth day before stocking, add 30cm of chlorine-treated water, start the gas supply unit, add sodium bicarbonate to adjust the total alkali to above 160mg / L, introduce 10cm of good floc water on the fourth day before stocking, and add 0.1ppm of beneficial bacteria every day from the third day to the first day before stocking;

[0098] Add beneficial bacteria every day after stocking, and add 10cm of water every week after stocking until the water level reaches 80cm;

[0099] The other operations are exactly the same as in Example 1;

[0100] 19,900 PL13 shrimp fry were put into the culture tank and cultured for 146 days. The average weight was 19g. 15,833 shrimps were harvested with a survival rate of 80%.

[0101] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0102] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shrimp breeding system, comprising a runway, an air supply unit, a jet unit and a sedimentation unit (4); It is characterized in that The runway is arranged in a rectangular shape and is paved with an impermeable membrane, comprising two opposite long side walls (101), two opposite short side walls (102) and a partition wall (111); the two long side walls (101) and the two short side walls (102) are connected to form a corner (103) at the connection point to form a frame structure; the partition wall (111) is located in the middle of the frame structure; the partition wall (111) is parallel to the two long side walls (101), and gaps are reserved between the two ends and the two short side walls (102) to form a ring structure; a drainage hole (121) is also provided in a corner of the runway, and the pool bottom is arranged to be inclined downward toward the drainage hole (121); In the early stage of breeding, the air supply unit works; in the late stage of breeding, the air supply unit and the jet unit work synchronously, and the sedimentation unit (4) can precipitate and remove flocs in the water body; The sedimentation unit (4) comprises a support (5) and a barrel (6) mounted on the support (5); Also includes: A disc (8) is sealingly and slidably disposed in the barrel (6) to divide the barrel (6) into an upper chamber and a lower chamber, wherein the upper chamber is used to contain water to be precipitated, and the lower chamber is used to contain water after the precipitation is removed. The disc (8) has a conical concave surface at the top and is hollow inside. The disc (8) is connected to a lifting drive mechanism mounted on the support (5); The disc (8) is provided with a plurality of columnar channels (17) inside, the columnar channels (17) being used to connect the upper chamber with the lower chamber so that water in the upper chamber can be transferred to the lower chamber, the bottom of the disc (8) is also provided with a switching mechanism for switching the columnar channels (17) between a conducting state and a blocking state, and the disc (8) is also provided with a sediment transfer mechanism for transferring sediment to the outside of the barrel (6); When the lifting drive mechanism drives the disc (8) to move upward into the upper chamber, the sediment transfer mechanism is triggered, which can cause the sediment located on the conical concave surface to enter the inside of the disc (8) and be transferred to the outside of the barrel (6); when the lifting mechanism drives the disc (8) to move downward into the lower chamber, the disc (8) can push the water in the lower chamber to the outside of the barrel (6); and the switching mechanism is triggered when the disc (8) descends to the end of the stroke, so that the columnar channel (17) is connected and the water in the upper chamber is replenished into the lower chamber.

2. The shrimp breeding system according to claim 1, characterized in that: The air supply unit comprises a Roots blower, a gas supply main pipe connected to the Roots blower, and a runway main pipe (201) installed on the partition wall (111), the gas supply main pipe being connected to the runway main pipe (201) at a connection (202), two nanotubes (211) being installed at the bottom of a side wall at each corner of the runway, respectively, the distance between the nanotubes (211) and between the nanotubes (211) and the pool bottom being 5 cm, so that water flows in a counterclockwise direction along the runway; The nanotube (211) is connected to the runway main pipe (201) via a PVC pipe, a switch for adjusting the gas volume of the nanotube (211) is installed at a conveniently operated position of the first connecting pipe (212), an air stone (221) is arranged between the long side wall (101) and the partition wall (111) at a spacing of 1 m, the air stone (221) is connected to the runway main pipe (201) via an air pipe (222), a gas regulating valve is used at the joint between the air pipe (222) and the runway main pipe (201) to adjust the gas volume, and a rubber wire is arranged directly above the air stone (221) to support and fix the air pipe in parallel with the long side wall (101).

3. The shrimp breeding system according to claim 2, characterized in that: The jet unit comprises a filter screen frame (301) disposed in the middle of the short side wall (102) at one side of the deep water area of ​​the runway, and a centrifugal pump (311) installed above the filter screen frame (301), wherein a water suction pipe (312) of the centrifugal pump (311) extends into the filter screen frame (301); A water supply pipe (321) connected to the water outlet of the centrifugal pump (311) is also installed on the peripheral wall of the runway to form a closed loop. According to the ejector and installation direction indicator (331), a plurality of ejectors are installed in a V-shape along the peripheral wall of the runway and the partition wall (111). The interval between two adjacent ejectors is 3-4 m, and the ejectors are connected to the water supply pipe (321) through a PVC pipe. A switch for adjusting the water flow size is installed at the position of the second connecting pipe (332) for easy operation.

4. The shrimp breeding system according to claim 1, characterized in that: The top of the barrel body (6) is provided with a plurality of through holes (601), the disk body (8) is provided with a plurality of circular holes (801) equidistantly along the circumference, and the bottom of the disk body (8) is also provided with a plurality of conduits (9), the conduits (9) passing through the bottom of the barrel body (6) and being sealed and slidably connected to the barrel body (6), so that the sediment can enter the inside of the disk body (8) through the circular holes (801) and then be discharged to the outside of the barrel body (6) through the conduits (9); The sediment transfer mechanism comprises a vertical cylinder (802) fixed at the center of the disk body (8), a sealing member (15) slidably arranged on the vertical cylinder (802) and sealingly fitted with the conical concave surface, a telescopic column (14) sealingly slidably arranged in the vertical cylinder (802), the telescopic column (14) being connected to a first cylindrical spring (16) arranged in the vertical cylinder (802), the telescopic column (14) cooperating with a limiting rod (602) fixed on the top wall of the barrel body (6), the A guide arm (10) is also fixed to the vertical cylinder (802), and a slider (13) is slidably provided on the guide arm (10). The slider (13) is respectively connected to the telescopic column (14) and the blocking member (15) through a first connecting rod (11) and a second connecting rod (12), and the two ends of the first connecting rod (11) are respectively hinged to the slider (13) and the telescopic column (14), and the two ends of the second connecting rod (12) are respectively hinged to the slider (13) and the blocking member (15).

5. The shrimp breeding system according to claim 1, characterized in that: The lifting drive mechanism comprises two guide rails (21) fixed on the support (5) and an assembly plate (22) slidably connected to the two guide rails (21); a vertical shaft (19) is rotatably mounted on the assembly plate (22); the vertical shaft (19) is rotatably connected to the bottom of the disk body (8); the vertical shaft (19) passes through the bottom center of the barrel body (6) and is sealed and slidably connected to the barrel body (6); and two ends of the assembly plate (22) are respectively connected to a group of threaded drive members arranged on the support (5).

6. The shrimp breeding system according to claim 5, characterized in that: The switching mechanism comprises an axial sliding assembly mounted on the bottom of the disk body (8) and connected to the vertical shaft (19), and an instantaneous trigger assembly mounted on the assembly plate (22) and connected to the vertical shaft (19); the axial sliding assembly comprises a ring body (20) sleeved on the vertical shaft (19) and threadedly connected to the vertical shaft (19), and a plurality of columns (18) fixedly connected to the ring body (20); The column (18) and the columnar channel (17) are sealingly slidably fitted together, and a groove (1801) with one end being open is provided on the column (18).

7. The shrimp breeding system according to claim 6, characterized in that: The instantaneous trigger assembly comprises a transverse tube (26) slidably arranged on the assembly plate (22) and movable along the length direction of the assembly plate (22), and a transverse rod (27) slidably sleeved with the transverse tube (26), the transverse rod (27) being fixed to a boss (23) slidably arranged in the transverse tube (26), and a second columnar spring (24) and a third columnar spring (25) having a head end connected to the boss (23) are sleeved on the outer periphery of the transverse rod (27), and the tail ends of the second columnar spring (24) and the third columnar spring (25) are in contact with the inner wall of the transverse tube (26); One end of the cross bar (27) is connected to the vertical shaft (19) via a toothed structure, and the other end is connected to an upper limit structure provided on the support (5).

8. The shrimp breeding system according to claim 7, characterized in that: The toothing structure comprises a gear (30) rotatably mounted on the assembly plate (22) and a toothed plate (29) fixedly connected to the crossbar (27) and meshing with the gear (30); the rotation axis of the gear (30) is connected to the vertical shaft (19) via a transmission belt; and a protruding column (2601) is fixedly provided on the outer wall of the horizontal cylinder (26); The limiting structure comprises a limiting plate (28) fixedly mounted on the support (5), the limiting plate (28) being provided with a first groove body and a second groove body respectively adapted to the cross bar (27) and the boss (2601), an end of the cross bar (27) away from the tooth plate (29) and the boss (2601) respectively extending into the first groove body and the second groove body and being slidably connected to the limiting plate (28).

9. A method for breeding shrimps, using the breeding shrimps breeding system as claimed in claim 1, characterized in that: include: In the early stage of breeding, the amount of water is controlled, sugar and beneficial bacteria are added to quickly form bioflocs. During the breeding process, the ammonia nitrogen and nitrite content levels are kept below 1 mg / L, the floc volume is kept at 2-5‰, the dissolved oxygen level is not less than 6 mg / L, and the total alkalinity is not less than 160 mg / L through monitoring and treatment; During the breeding process, the ammonia nitrogen and nitrite content in the water body is lower than 1mg / L. When the content is not lower than 1mg / L, 10ppm sugar is added every day; adding sugar can only reduce the ammonia nitrogen content, but not the nitrite content, and when the content exceeds 10mg / L, nitrifying bacteria are added every day until the nitrite content decreases; The floc content in the water body is maintained at 2-5‰. In the early stage of aquaculture, when the floc content is lower than 2‰, sugar and beneficial bacteria are added. In the middle stage of aquaculture, when the floc content is greater than 5‰, the sedimentation unit (4) is used to precipitate the flocs. In the late stage of aquaculture, when the floc content cannot be kept below 5‰ by the sedimentation unit (4), 10 cm of water is replaced every week. In the early stage of aquaculture, only the air supply unit is used, and the water flow is slow. The jet unit is used 20 days after the seedlings are released, and the air supply unit is stopped until the middle and late stages of aquaculture, when only the jet unit cannot keep the dissolved oxygen in the water above 6 mg / L, the air supply unit is turned on; During the breeding process, the total alkalinity of the water should be maintained above 160 mg / L. When its content is lower than 160 mg / L, baking soda should be added.

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