Fresh water pearl mussel breeding and breeding equipment

Abstract

The invention provides freshwater pearl mussel breeding and breeding equipment. The problems that due to the fact that scientific and effective breeding equipment is lacked in the existing market, existing pearl breeding is mostly low in yield and quality, the environment cost is high, and further development of the pearl breeding industry is hindered are solved. The system comprises a cultivation pool used for early-stage cultivation, a water pool, a multi-stage raw water filtering device and a breeding cabinet arranged in a cultivation room, the water pool, the multi-stage raw water filtering device and the breeding cabinet are sequentially arranged in the follow-up water supply direction, and the breeding cabinet is arranged in the cultivation room through the cultivation pool used for early-stage cultivation, the breeding cabinet used for later-stage cultivation and a waste water pipe and a spraying pipe which are independently arranged for a breeding drawer in each breeding chamber. One-to-one water inlet and water outlet of the breeding drawers are achieved, the water inlet amount of each breeding drawer can be accurately controlled, the consistency of the growth environment of pearl mussels in all the breeding drawers is guaranteed, the quality of the pearl mussels is effectively improved, and the breeding effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, and in particular to a freshwater pearl oyster breeding device. Background Art

[0002] Pearls are colorful, dazzling, rare and precious ornaments that are deeply loved by the public. They can be processed and refined into various necklaces, bracelets, ornaments and other ornaments. Pearls are rich in amino acids and various trace elements, so they are also precious Chinese medicinal materials, which have the effects of clearing away heat and detoxification, calming the nerves and calming the nerves, improving eyesight and relieving pain, and astringing and promoting tissue regeneration.

[0003] Pearls can be divided into natural pearls and cultured pearls. Currently, more than 90% of the pearls on the market are artificially cultured pearls, and cultured pearls can be divided into seawater pearls and freshwater pearls. With the continuous growth of the global population, the consumption of marine pearl products has also continued to increase. At present, there are very few natural pearls. For this reason, the development of cultured pearls has become one of the focuses of attention of all countries. Japan has relatively mature pearl breeding technology. my country needs to strengthen its study to provide technical support for the faster and healthier development of my country's aquaculture industry. China's freshwater pearl production has ranked first in the world, but the quality is not ideal. At present, the country cultivates nearly 10 billion young clams each year, and the production of pearl clams can reach 500 million to 800 million. However, due to the large-scale death caused by clam diseases, the annual production of commercial pearl clams and pearls can be more than doubled than the current level.

[0004] At present, there is a lack of scientific and effective breeding equipment on the market, resulting in low yield and low quality of existing pearl breeding, and high environmental costs, which hinders the further development of the cultured pearl industry. There is room for improvement in the existing technology. Summary of the invention

[0005] In view of the above-mentioned existing situation, the equipment of the present invention provides a freshwater pearl oyster breeding equipment, including a breeding pool for early breeding and water pools subsequently arranged in sequence along the water supply direction, a multi-stage raw water filtration device and a breeding cabinet arranged in a breeding room, the breeding pool includes a hollow water pool body and a bottom plate fixedly arranged in the water pool, the bottom plate is provided with two mutually staggered inclined surfaces, the connection point of the two inclined surfaces is located at the lowest point of the inclined surfaces and forms a drainage trough for drainage, the drainage trough extends along the width direction of the above-mentioned water pool and is provided with a drainage pipe for drainage and extending to the outside of the water pool, one end of the drainage pipe is located on one side of the above-mentioned water pool, and water tanks are fixedly arranged on the end surface of the outer periphery of the water pool close to one side of the drainage pipe, and the water tanks are connected to the above-mentioned water pool. The water tank is provided with a water level equalizing device for automatically adjusting the water level in the water pool. The breeding cabinet comprises a cabinet body and a breeding chamber opened on the cabinet body for placing breeding drawers. The breeding chambers are arranged in multiple rows and are evenly distributed on the cabinet body. A water inlet pipe and a second water outlet pipe for water intake and drainage are arranged at the lower end of the cabinet body. The second water outlet pipe is provided with a plurality of guide pipes extending in a vertical direction, and the guide pipes correspond one-to-one with each row of breeding chambers. The guide pipes are provided with a plurality of wastewater pipes for collecting wastewater overflowed from the above-mentioned breeding drawers, and the wastewater pipes correspond one-to-one with the breeding drawers. The water inlet pipe is provided with a water supply unit for supplying water to each row of breeding chambers, and the water supply unit is provided with a nozzle for supplying water to the breeding drawers, and the nozzle corresponds one-to-one with the breeding drawers.

[0006] Preferably, the water level equalization device includes a main pipe fixedly installed on the drain pipe, an exhaust pipe extending upward is arranged on one side of the main pipe, the lower end of the exhaust pipe is connected to the outside, and a connecting pipe connected to the above-mentioned water level equalization tank is arranged on the exhaust pipe, and an adjusting pipe for adjusting the water level height is movably arranged on one end of the connecting pipe located in the above-mentioned water level equalization tank.

[0007] Preferably, a valve for controlling the connection and closing of the exhaust pipe and the drain pipe to achieve drainage is provided at one end of the main pipe away from the drain pipe, and the exhaust pipe is located between the valve and the drain pipe.

[0008] Preferably, a first edge is fixedly provided on the outer periphery of the upper end of the pool, and a second edge is fixedly provided on the outer periphery of the pool, and the second edge is located between the first edge and the bottom plate.

[0009] Preferably, the water tank is located between the plane where the first surrounding edge is located and the plane where the second surrounding edge is located.

[0010] Preferably, the plane where the upper end of the exhaust pipe is located is above the plane where the upper end of the regulating pipe is located.

[0011] Preferably, the multi-stage raw water filtration device comprises a primary filter tank, a secondary filter tank and a tertiary filter tank which are sequentially arranged along the water flow direction, the primary filter tank, the secondary filter tank and the tertiary filter tank are all provided with a water inlet and a water outlet, and the height of the water inlet is greater than the height of the water outlet, the primary filter tank, the secondary filter tank and the tertiary filter tank are respectively provided with a first filter mechanism, a second filter mechanism and a third filter mechanism to filter solid impurities in the water body.

[0012] Preferably, the water inlet and water outlet on the first-level filter tank are respectively located on the left and right sides of the above-mentioned first filter mechanism, and the first filter mechanism includes an upper partition and a lower partition fixedly arranged in the filter tank, the upper partition is located on the side facing the above-mentioned water inlet, and a certain gap is left between the lower end of the upper partition and the bottom of the first-level filter tank, the lower partition is located between the above-mentioned upper partition and the water outlet, the lower end of the lower partition is fixedly arranged on the bottom of the above-mentioned first-level filter tank, and both sides of the upper partition and the lower partition are fixedly arranged on the inner wall of the first-level filter tank.

[0013] Preferably, a filter cartridge is provided at the water inlet of the primary filter tank.

[0014] Preferably, cover plates are provided on the upper ends of the upper partition and the lower partition.

[0015] Preferably, the water inlet and the water outlet on the secondary filter tank are arranged on the upper and lower sides of the above-mentioned second filter mechanism, and the second filter mechanism includes a fixed plate fixedly arranged in the secondary filter tank, the fixed plate is annular and arranged in the horizontal direction, the outer periphery of the fixed plate is fixedly arranged on the inner wall of the secondary filter tank, and a circle of triangular weir plates extending upward is fixedly arranged on the inner wall of the fixed plate.

[0016] Preferably, a plurality of reinforcing plates are fixedly arranged at the bottom of the fixing plate, and the reinforcing plates are fixedly arranged on the inner wall of the above-mentioned secondary filter tank.

[0017] Preferably, a water outlet pipe connected to a water outlet in the third-stage filter tank is fixedly provided in the third-stage filter tank, and a filter screen is fixedly provided at one end of the water outlet pipe away from the water outlet.

[0018] Preferably, a support plate for supporting the water outlet pipe is fixedly provided at the bottom of the three-stage filter tank.

[0019] Preferably, the primary filter tank, the secondary filter tank and the tertiary filter tank are all provided with drain ports.

[0020] Preferably, two water supply units are arranged on the water inlet pipe to supply water to a row of breeding chambers, and the two water supply units supply water to the upper and lower parts of the breeding chambers respectively. The water supply unit includes a water supply pipe connected to the above-mentioned water inlet pipe, and a control ball valve for adjusting the water inlet flow rate and flow rate is arranged at one end of the water supply pipe close to the above-mentioned water inlet pipe. The above-mentioned nozzle is connected to the water supply pipe, and the nozzle is located at the upper end of the breeding chamber, and the above-mentioned wastewater pipe is located at the lower end of the breeding chamber.

[0021] Preferably, a plurality of hooks for hanging the water inlet pipe and the water supply pipe are fixedly provided on the cabinet.

[0022] Preferably, a baffle is fixedly provided on the side wall of the cabinet, the rear end of the breeding drawer abuts against the baffle, and a support frame is fixedly provided at both ends of the bottom of the breeding chamber, a plurality of rollers are rotatably provided on the support frame on one side facing the other support frame, and the plurality of rollers are distributed along the length direction of the support frame, the breeding drawer is mounted on the rollers, and a limiting plate for clamping on both sides of the breeding drawer is fixedly provided on the rollers on the front end of the side of the support frame facing the other support frame.

[0023] Preferably, a connecting rod is fixedly arranged between the two support frames.

[0024] Preferably, a partition extending along the width direction of the breeding tray is fixedly provided in the breeding tray, and the partition divides the breeding tray into a breeding chamber for breeding pearl oysters and a wastewater chamber for discharging overflow water. A drainage hole is provided at one end of the bottom of the breeding chamber away from the partition, and a first plug is clamped in the drainage hole. A wastewater hole is provided at the bottom of the wastewater chamber, and the wastewater hole is located directly above the wastewater pipe.

[0025] Preferably, guide grooves for clamping between the two roller upper limit plates are respectively provided on both sides of the lower end of the breeding drawer.

[0026] Preferably, the nozzle is provided with a plurality of overflow holes for discharging water, a second plug is clamped at one end of the nozzle, a movable groove surrounding the outer periphery of the overflow hole is provided on the nozzle, an adjusting ring for adjusting the water outlet direction of the overflow hole is sleeved on the movable groove, the adjusting ring is enclosed on the movable groove by snap-fitting, a limiting ring is fixedly provided at the lower end of the overflow hole, a cavity for clamping the limiting ring is provided in the adjusting ring, a nozzle connected to the cavity is movably provided on the adjusting ring, a notch penetrating the nozzle is provided on the front end side wall of the nozzle, a knob for locking the adjusting ring is movably provided on the end of the adjusting ring away from the nozzle, and the knob is movably provided on the adjusting ring through a threaded connection.

[0027] Preferably, two sealing rings concentric with the adjusting ring are arranged in the adjusting ring, and the two sealing rings are located on both sides of the overflow hole.

[0028] Preferably, sealing strips for abutting against the outer wall of the movable groove are fixedly provided at both ends of the cavity.

[0029] Compared with the prior art, the present invention realizes one-to-one water intake and drainage for the breeding drawers through the cultivation pool for early breeding and the breeding cabinet for later breeding, and separately arranges wastewater pipes and nozzles for the breeding drawers in each breeding chamber. The water intake of each breeding drawer can be accurately controlled to ensure the consistency of the growth environment of pearl oysters in each breeding drawer, effectively improve the quality of pearl oysters, and achieve better breeding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the pool.

[0031] Figure 2 This is a cutaway view of the pool.

[0032] Figure 3 This is a schematic diagram of the structure after the pipeline is installed.

[0033] Figure 4 This is the front view of the pool pipe after installation.

[0034] Figure 5 It is a schematic diagram of the overall structure of a multi-stage raw water filtration device.

[0035] Figure 6 This is a schematic diagram of the structure of the first-stage filter tank.

[0036] Figure 7 It is a structural schematic diagram of the secondary filter tank.

[0037] Figure 8 It is a schematic diagram of the structure of the three-stage filter tank.

[0038] Fig. 9 This is a structural diagram of the breeding cabinet.

[0039] Fig.10 It is a schematic diagram of the structure of the water inlet pipe and the water outlet pipe.

[0040] Fig.11 It is a schematic diagram of the structure of the water inlet pipe and the water outlet pipe from the rear view.

[0041] Fig.12 It is a structural diagram of the cabinet.

[0042] Fig.13 This is a schematic diagram of the structure of the breeding drawer.

[0043] Fig.14It is a schematic diagram of the structure at the support frame.

[0044] Fig.15 This is a schematic diagram of the structure of the nozzle.

[0045] Fig.16 This is a cutaway view of the adjustment ring.

[0046] Fig.17 Schematic diagram of the structure of the adjustment ring.

[0047] Fig.18 A cutaway view of the adjustment ring.

[0048] Markings in the figure: 1. Primary filter tank; 2. Secondary filter tank; 3. Tertiary filter tank; 4. Water inlet; 5. Water outlet; 6. Upper baffle; 7. Lower baffle; 8. Filter cartridge; 9. Cover plate; 10. Fixed plate; 11. Triangular weir plate; 12. Reinforcement plate; 13. First outlet pipe; 14. Filter screen; 15. Support plate; 16. Drain port; 17. Pool; 18. Bottom plate; 19. Inclined surface; 20. Drain trough; 21. Drain Water pipe; 22, water tank; 23, main pipe; 24, exhaust pipe; 25, connecting pipe; 26, regulating pipe; 27, valve; 28, first enclosure; 29, second enclosure; 31, cabinet; 32, breeding drawer; 33, breeding chamber; 34, water inlet pipe; 35, second water outlet pipe; 36, guide pipe; 37, waste water pipe; 38, water supply unit; 39, spray pipe; 40, water supply pipe; 41, control ball valve; 42, hook; 43. baffle; 44. support frame; 45. roller; 46. limit plate; 47. connecting rod; 48. partition; 49. breeding chamber; 50. wastewater chamber; 51. drainage hole; 52. first plug; 53. wastewater hole; 54. guide groove; 55. overflow hole; 56. second plug; 57. movable groove; 58. adjustment ring; 59. limit ring; 60. cavity; 61. nozzle; 62. knob; 63. sealing ring; 64. sealing strip; 65. notch. DETAILED DESCRIPTION

[0049] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: A freshwater pearl oyster breeding equipment, comprising a breeding pool for early breeding, and water pools arranged in sequence along the water supply direction, a multi-stage raw water filtering device and a breeding cabinet arranged in a breeding room, such as Figure 1-4As shown, the cultivation pool includes a hollow pool body 17 and a bottom plate 18 fixedly arranged in the pool 17, the bottom plate 18 is provided with two mutually staggered inclined surfaces 19, the connection between the two inclined surfaces 19 is located at the lowest point of the inclined surfaces 19 and forms a drainage trough 20 for drainage, the drainage trough 20 extends along the width direction of the above-mentioned pool 17 and the drainage trough 20 is provided with a drainage pipe 21 for drainage and extending to the outside of the pool 17, one end of the drainage pipe 21 is located on one side of the above-mentioned pool 17, and a water tank 22 is fixedly arranged on the end face of the outer periphery of the pool 17 close to one side of the drainage pipe 21, the water tank 22 is connected to the above-mentioned pool 17, and a water level device for automatically adjusting the water level height in the pool 17 is provided in the water tank 22. By setting up the equal water tank 22 and the equal water level device, the water inlet, overflow and drainage functions of the water pool 17 are realized. During the breeding process, any single cultivation pool can be changed, collected or emptied. The drainage trough 20 set on the bottom plate 18 is convenient for collection and drainage. The equal water tank 22 can conveniently discharge various tiny particles floating on the water surface, and can make the water level of all cultivation pools at the same water level height. The structure is simple and practical, ensuring the consistency of the growth environment of pearl oysters in different pools.

[0050] The water level equalization device comprises a main pipe 23 fixedly arranged on the drain pipe 21, and an upwardly extending exhaust pipe 24 is arranged on the main pipe 23, and the lower end of the exhaust pipe 24 is connected to the outside, and a connecting pipe 25 connected to the above-mentioned water tank 22 is arranged on the exhaust pipe 24, and an adjusting pipe 26 for adjusting the water level is movably arranged at one end of the connecting pipe 25 located in the above-mentioned water tank 22. A valve 27 for controlling the connection and closing of the exhaust pipe 24 with the drain pipe 21 to achieve drainage is arranged at one end of the main pipe 23 away from the drain pipe 21, and the exhaust pipe 24 is located between the valve 27 and the drain pipe 21. The plane where the upper end of the exhaust pipe 24 is located is located above the plane where the upper end of the adjusting pipe 26 is located. During use, the water level in the pool 17 is regulated by uniformly replacing the regulating pipe 26. During the breeding process, the valve 27 is closed, and the water body is located in the pool 17 and the water tank 22. At this time, the height of the drain pipe 21 is greater than the height of the water level. When the water is drained and then released again, when the water level is higher than the drain pipe 21, the excess water overflows from the drain pipe 21 and is discharged through the exhaust pipe 24. The water level in different pools 17 can be regulated by regulating pipes 26 of uniform length.

[0051] A first edge 28 is fixedly disposed on the outer periphery of the upper end of the pool 17, and a second edge 29 is fixedly disposed on the outer periphery of the pool 17, and the second edge 29 is located between the first edge 28 and the bottom plate 18. The water tank 22 is located between the plane where the first edge 28 and the second edge 29 are located. The first edge 28 and the second edge 29 enclosed on the outer periphery of the pool 17 enhance the strength of the overall structure of the pool 17.

[0052] like Figure 5-8 As shown, a multi-stage raw water filtering device includes a primary filter tank 1, a secondary filter tank 2 and a tertiary filter tank 3 arranged in sequence along the water flow conveying direction, wherein the primary filter tank 1, the secondary filter tank 2 and the tertiary filter tank 3 are all provided with a water inlet 4 and a water outlet 5, and the height of the water inlet 4 is greater than the height of the water outlet 5, and the primary filter tank 1, the secondary filter tank 2 and the tertiary filter tank 3 are respectively provided with a first filter mechanism, a second filter mechanism and a third filter mechanism to filter solid impurities in the water body. The primary filter tank 1, the secondary filter tank 2 and the tertiary filter tank 3 are all provided with an emptying port 16. The water is treated by a physical filtration method, and no substances harmful to the aquaculture products are generated. In the process, the primary filter tank 1, the secondary filter tank 2 and the tertiary filter tank 3 arranged in sequence are used to realize three-stage filtration, and the solid impurities in the water body are removed, and the structure is simple and practical.

[0053] The water inlet 4 and the water outlet 5 on the first filter tank 1 are respectively located on the left and right sides of the first filter mechanism. The first filter mechanism includes an upper baffle 6 and a lower baffle 7 fixedly arranged in the filter tank. The upper baffle 6 is located on the side facing the water inlet 4. A certain gap is left between the lower end of the upper baffle 6 and the bottom of the first filter tank 1. The lower baffle 7 is located between the upper baffle 6 and the water outlet 5. The lower end of the lower baffle 7 is fixedly arranged at the bottom of the first filter tank 1, and both sides of the upper baffle 6 and the lower baffle 7 are fixedly arranged on the inner wall of the first filter tank 1. A filter cartridge 8 is arranged at the water inlet 4 on the first filter tank 1. Cover plates 9 are arranged at the upper ends of the upper baffle 6 and the lower baffle 7. Through the upper baffle 6 and the lower baffle 7, the water forms an up-and-down undulating movement mode. The water enters from the top, the upper baffle 6 makes the water flow to the bottom of the filter pool, and the lower baffle 7 makes the water flow from the bottom to the top. During the whole flow process, suspended matter and sediment will settle to the bottom of the pool.

[0054] The water inlet 4 and the water outlet 5 on the secondary filter tank 2 are arranged on the upper and lower sides of the above-mentioned second filter mechanism. The second filter mechanism includes a fixed plate 10 fixedly arranged in the secondary filter tank 2. The fixed plate 10 is annular and arranged in the horizontal direction. The outer periphery of the fixed plate 10 is fixedly arranged on the inner wall of the secondary filter tank 2. A circle of triangular weir plates 11 extending upward is fixedly arranged on the inner wall of the fixed plate 10. A plurality of reinforcing plates 12 are fixedly arranged at the bottom of the fixed plate 10. The reinforcing plates 12 are fixedly arranged on the inner wall of the above-mentioned secondary filter tank 2. Through the fixed plate 10 and the triangular weir plate 11, the water flows into the fixed plate 10 through the water inlet 4, and the water flows upward and overflows from the triangular weir plate 11. The lifting and blocking effect of the triangular weir plate 11 blocks most of the impurities in front of the triangular weir plate 11. The water flowing through the triangular weir plate 11 is relatively clean, which achieves the purpose of secondary purification.

[0055] A first water outlet pipe 13 connected to the water outlet 5 in the third-stage filter tank 3 is fixedly provided in the third-stage filter tank 3, and a filter screen 14 is fixedly provided at one end of the first water outlet pipe 13 away from the water outlet 5. A support plate 15 for supporting the first water outlet pipe 13 is fixedly provided at the bottom of the third-stage filter tank 3. The fine particles in the final fluid are filtered by the filter screen 14, completing the physical multi-stage filtration of the raw water.

[0056] like Figure 9-18 As shown, a freshwater pearl oyster breeding equipment includes a cabinet 31 and a breeding chamber 33 opened on the cabinet 31 for placing a breeding drawer 32. The cabinet 31 is made of high-strength aluminum alloy, which is resistant to oxidation and corrosion in a high-water vapor breeding environment. The breeding chamber 33 is arranged in multiple rows and evenly distributed on the cabinet 31. The lower end of the cabinet 31 is provided with a water inlet pipe 34 and a second water outlet pipe 35 for water inlet and water outlet. The second water outlet pipe 35 is provided with a plurality of vertically extending An extended guide pipe 36 corresponds one-to-one with each row of breeding chambers 33. The guide pipe 36 is provided with a plurality of wastewater pipes 37 for collecting wastewater overflowing from the breeding drawers 32. The wastewater pipes 37 correspond one-to-one with the breeding drawers 32. The water inlet pipe 34 is provided with a water supply unit 38 for supplying water to each row of breeding chambers 33. The water supply unit 38 is provided with a nozzle 39 for supplying water to the breeding drawers 32. The nozzle 39 corresponds one-to-one with the breeding drawers 32. The water inlet pipe 34 is provided with two water supply units 38 to supply water to a row of breeding chambers 33. The two water supply units 38 supply water to the upper and lower breeding chambers 33 respectively. The water supply unit 38 includes a water supply pipe 40 connected to the water inlet pipe 34. The water supply pipe 40 is provided with a control ball valve 41 for adjusting the water flow rate and flow rate at one end thereof close to the water inlet pipe 34. The two water supply units 38 supply water to the upper and lower parts of the cabinet 31 respectively, thereby reducing the pressure difference between the upper and lower parts of the cabinet. The nozzle 39 is connected to the water supply pipe 40. The nozzle 39 is located at the upper end of the breeding chamber 33. The waste water pipe 37 is located at the lower end of the breeding chamber 33. The cabinet 31 is fixedly provided with a plurality of hooks 42 for hanging the water inlet pipe 34 and the water supply pipe 40. The water inlet pipe 34 and the water supply pipe 40 are fixedly provided on the cabinet 31 through the hooks 42, which are convenient and accurate when installed and positioned. By separately setting up a wastewater pipe 37 and a nozzle 39 for each breeding tray 32 in each breeding chamber 33, one-to-one water intake and drainage of the breeding tray 32 can be achieved, and the water intake of each breeding tray 32 can be accurately controlled to ensure the consistency of the growth environment of pearl oysters in each breeding tray 32, thereby achieving a better cultivation effect.

[0057] A baffle 43 is fixedly provided on the side wall of the cabinet 31, and the rear end of the breeding drawer 32 abuts against the baffle 43. A support frame 44 is fixedly provided at both ends of the bottom of the breeding chamber 33. A plurality of rollers 45 are rotatably provided on the support frame 44 on one side facing the other support frame 44. The plurality of rollers 45 are distributed along the length direction of the support frame 44. The breeding drawer 32 is mounted on the rollers 45. The rollers 45 on the support frame 44 facing the front end of the other support frame 44 are fixedly provided with a limit plate 46 for clamping on both sides of the breeding drawer 32. A connecting rod 47 is fixedly provided between the two support frames 44. A partition 48 extending along the width direction of the breeding tray 32 is fixedly arranged in the breeding tray 32, and the partition 48 divides the breeding tray 32 into a breeding chamber 49 for breeding pearl oysters and a wastewater chamber 50 for draining after overflow. A drainage hole 51 is provided at one end of the bottom of the breeding chamber 49 away from the partition 48, and a first plug 52 is clamped in the drainage hole 51. A wastewater hole 53 is provided at the bottom of the wastewater chamber 50, and the wastewater hole 53 is located directly above the wastewater pipe 37. Guide grooves 54 for clamping between the upper limit plates 46 on the two rollers 45 are respectively provided on both sides of the lower end of the breeding tray 32. The drawer-type design of the breeding drawer 32 makes it convenient to place or take out the breeding drawer 32. When placing the breeding drawer 32, the breeding drawer 32 is placed on the roller 45, the limit plate 46 is clamped on the guide groove 54, and the breeding drawer 32 is pushed in until the breeding drawer 32 contacts the baffle 43 on the cabinet 31. At this time, the drainage hole 51 on the breeding drawer 32 is located directly above the wastewater pipe 37 on the cabinet 31. Water is supplied to the breeding chamber 49 in the breeding drawer 32, and the overflow water flows into the wastewater chamber 50 through the provided partition 48, and is discharged through the wastewater hole 53. In the subsequent cleaning, the debris in the breeding drawer 32 can be discharged by taking out the first plug 52 at the drainage hole 51, and the cleaning is more convenient.

[0058] The nozzle 39 is provided with a plurality of overflow holes 55 for discharging water, a second plug 56 is clamped at one end of the nozzle 39, a movable groove 57 surrounding the outer periphery of the overflow hole 55 is provided on the nozzle 39, an adjusting ring 58 for adjusting the water discharge direction of the overflow hole 55 is sleeved on the movable groove 57, the adjusting ring 58 is clamped on the movable groove 57 by buckling, a limiting ring 59 is fixedly provided at the lower end of the overflow hole 55, a guide groove 60 for clamping the limiting ring 59 is provided in the adjusting ring 58, a nozzle 61 connected to the guide groove 60 is movably provided on the adjusting ring 58, a notch 65 penetrating the nozzle 61 is provided on the front end side wall of the nozzle 61, a knob 62 for locking the adjusting ring 58 is movably provided on the end of the adjusting ring 58 away from the nozzle 61, and the knob 62 is movably provided on the adjusting ring 58 by threaded connection. Two sealing rings 63 are arranged inside the adjusting ring 58 and are concentric with the adjusting ring 58. The two sealing rings 63 are located on both sides of the overflow hole 55. Sealing strips 64 for abutting against the outer wall of the movable groove 57 are fixedly arranged at both ends of the guide groove 60. When in use, the position of the nozzle 61 is adjusted by rotating the adjustment ring 58 to achieve adjustment of different drip positions, and the aperture of the nozzle 61 is 1 mm. Through the opened notch 65, when impurities enter the nozzle 61 with the water flow, the nozzle 61 is blocked. By increasing the water flow pressure, the impurities are driven to squeeze the nozzle 61, so that the nozzle 61 is deformed and the impurities are flushed out, effectively avoiding the blockage of the nozzle 61. When adjusting, by tightening the knob 62, the upper end of the adjusting ring 58 is deformed and moved in the direction of the knob 62 with the knob 62, so that the lower end of the adjusting ring 58 is pressed against the movable groove 57 and the sealing ring 63 and the sealing strip 64 are used to achieve sealing in the guide groove 60, and the rotation angle of the adjusting ring 58 is limited by the set limit ring 59. The structure is simple and practical.

[0059] By optimizing the overall breeding process and equipment, the incidence rate of pearl oysters is significantly reduced, thereby improving the survival rate and pearl-laying rate of pearl oysters. On the other hand, pre-treatment of the water body ensures a good production environment for pearl oysters, promotes the growth of pearl oysters and improves the quality of pearls, greatly increasing production and quality and reducing pollution to the environment.

[0060] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or changes in the description derived therefrom are still within the scope of protection of the present invention.

Claims

1. A freshwater pearl oyster breeding equipment, characterized in that: The invention comprises a cultivation pool for early stage breeding and water pools arranged in sequence along the water supply direction, a multi-stage raw water filtering device and a breeding cabinet arranged in a breeding room, wherein the cultivation pool comprises a hollow water pool (17) body and a bottom plate (18) fixedly arranged in the water pool (17), wherein the bottom plate (18) is provided with two mutually staggered inclined surfaces (19), wherein the connection point of the two inclined surfaces (19) is located at the lowest point of the inclined surface (19) and forms a drainage groove (20) for drainage, wherein the drainage groove (20) is arranged along the bottom plate (18) and the drainage groove (20) is arranged along the bottom plate (18). The drainage groove (20) extends in the width direction of the pool (17) and is provided with a drainage pipe (21) for drainage and extending to the outside of the pool (17). One end of the drainage pipe (21) is located on one side of the pool (17). A water tank (22) is fixedly provided on the end surface of the outer periphery of the pool (17) close to the drainage pipe (21). The water tank (22) is connected to the pool (17). A device for automatically adjusting the water level in the pool (17) is provided in the water tank (22). The breeding cabinet comprises a cabinet body (31) and a breeding chamber (33) opened on the cabinet body (31) for placing breeding drawers (32). The breeding chambers (33) are arranged in multiple rows and are evenly distributed on the cabinet body (31). The cabinet body (31) is provided with a water inlet pipe (34) and a second water outlet pipe (35) for water inlet and water outlet at the lower end. The second water outlet pipe (35) is provided with a plurality of guide pipes (36) extending in a vertical direction. The guide pipes (36) are connected to each row of breeding drawers. The chambers (33) correspond one to one, the guide pipe (36) is provided with a plurality of wastewater pipes (37) for collecting wastewater overflowing from the breeding drawers (32), the wastewater pipes (37) correspond one to one with the breeding drawers (32), the water inlet pipe (34) is provided with a water supply unit (38) for supplying water to each row of breeding chambers (33), the water supply unit (38) is provided with a nozzle (39) for supplying water to the breeding drawers (32), the nozzle (39) corresponds one to one with the breeding drawers (32).

2. A freshwater pearl oyster breeding equipment according to claim 1, characterized in that: The water inlet pipe (34) is provided with two water supply units (38) for supplying water to a row of breeding chambers (33). The two water supply units (38) supply water to the upper and lower breeding chambers (33) respectively. The water supply unit (38) comprises a water supply pipe (40) connected to the water inlet pipe (34). A control ball valve (41) for adjusting the water inlet flow rate and flow rate is provided at one end of the water supply pipe (40) close to the water inlet pipe (34). The nozzle (39) is connected to the water supply pipe (40). The nozzle (39) is located at the upper end of the breeding chamber (33). The waste water pipe (37) is located at the lower end of the breeding chamber (33). A plurality of hooks (42) for hanging the water inlet pipe (34) and the water supply pipe (40) are fixedly provided on the cabinet (31).

3. A freshwater pearl oyster breeding equipment according to claim 2, characterized in that: A baffle (43) is fixedly provided on the side wall of the cabinet (31), and the rear end of the breeding drawer (32) abuts against the baffle (43). A support frame (44) is fixedly provided at each end of the bottom of the breeding chamber (33). A plurality of rollers (45) are rotatably provided on the support frame (44) on one side facing the other support frame (44). The plurality of rollers (45) are distributed along the length direction of the support frame (44). The breeding drawer (32) is mounted on the rollers (45). A limit plate (46) for clamping on both sides of the breeding drawer (32) is fixedly provided on the rollers (45) on the front end of the side facing the other support frame (44) on the support frame (44). A connecting rod (46) is fixedly provided between the two support frames (44). A connecting rod (47), a partition (48) extending along the width direction of the breeding drawer (32) is fixedly provided in the breeding drawer (32), the partition (48) dividing the breeding drawer (32) into a breeding chamber (49) for breeding pearl oysters and a wastewater chamber (50) for discharging overflow water, a drainage hole (51) is provided at one end of the bottom of the breeding chamber (49) away from the partition (48), a first plug (52) is clamped in the drainage hole (51), a wastewater hole (53) is provided at the bottom of the wastewater chamber (50), the wastewater hole (53) is located directly above the wastewater pipe (37), and guide grooves (54) for clamping between the upper limit plates (46) of the two rollers (45) are respectively provided on both sides of the lower end of the breeding drawer (32).

4. A freshwater pearl oyster breeding equipment according to claim 1, characterized in that: The nozzle (39) is provided with a plurality of overflow holes (55) for discharging water. A second plug (56) is clamped at one end of the nozzle (39). A movable groove (57) surrounding the outer periphery of the overflow hole (55) is provided on the nozzle (39). An adjusting ring (58) for adjusting the water discharge direction of the overflow hole (55) is sleeved on the movable groove (57). The adjusting ring (58) is clamped on the movable groove (57) in a buckled manner. A limiting ring (59) is fixedly provided at the lower end of the overflow hole (55). A guide groove (60) for clamping the limiting ring (59) is provided in the adjusting ring (58). A guide groove (60) connected to the limiting ring (59) is movably provided on the adjusting ring (58). A nozzle (61) of the guide groove (60) is provided with a notch (65) penetrating the nozzle (61) on a front end side wall of the nozzle (61); a knob (62) for locking the adjusting ring (58) is movably provided on an end of the adjusting ring (58) away from the nozzle (61); the knob (62) is movably provided on the adjusting ring (58) through a threaded connection; two sealing rings (63) concentric with the adjusting ring (58) are provided in the adjusting ring (58); the two sealing rings (63) are located on both sides of the overflow hole (55); and sealing strips (64) for abutting against the outer wall of the movable groove (57) are fixedly provided at both ends of the guide groove (60).

5. A freshwater pearl oyster breeding equipment according to claim 1, characterized in that: The multi-stage raw water filtering device comprises a primary filtering tank (1), a secondary filtering tank (2) and a tertiary filtering tank (3) which are arranged in sequence along the water flow conveying direction; the primary filtering tank (1), the secondary filtering tank (2) and the tertiary filtering tank (3) are all provided with a water inlet (4) and a water outlet (5), and the height of the water inlet (4) is greater than the height of the water outlet (5); the primary filtering tank (1), the secondary filtering tank (2) and the tertiary filtering tank (3) are respectively provided with a first filtering mechanism, a second filtering mechanism and a third filtering mechanism to filter solid impurities in the water body.

6. A freshwater pearl oyster breeding equipment according to claim 5, characterized in that: The water inlet (4) and the water outlet (5) on the first-level filter tank (1) are respectively arranged on the left and right sides of the first filtering mechanism. The first filtering mechanism comprises an upper baffle (6) and a lower baffle (7) fixedly arranged in the filter tank. The upper baffle (6) is located on the side facing the water inlet (4). A certain gap is left between the lower end of the upper baffle (6) and the bottom of the first-level filter tank (1). The lower baffle (7) is located between the upper baffle (6) and the water outlet (5). The lower end of the lower baffle (7) is fixedly arranged at the bottom of the first-level filter tank (1), and both sides of the upper baffle (6) and the lower baffle (7) are fixedly arranged on the inner wall of the first-level filter tank (1). A filter cartridge (8) is arranged at the water inlet (4) on the first-level filter tank (1), and cover plates (9) are arranged at the upper ends of the upper baffle (6) and the lower baffle (7).

7. A freshwater pearl oyster breeding equipment according to claim 6, characterized in that: The water inlet (4) and the water outlet (5) on the secondary filter tank (2) are arranged on the upper and lower sides of the second filter mechanism. The second filter mechanism comprises a fixing plate (10) fixedly arranged in the secondary filter tank (2). The fixing plate (10) is annular and arranged in the horizontal direction. The outer periphery of the fixing plate (10) is fixedly arranged on the inner wall of the secondary filter tank (2). A circle of triangular weir plates (11) extending upward is fixedly arranged on the inner wall of the fixing plate (10). A plurality of reinforcing plates (12) are fixedly arranged on the bottom of the fixing plate (10). The reinforcing plates (12) are fixedly arranged on the inner wall of the secondary filter tank (2).

8. A freshwater pearl oyster breeding equipment according to claim 1, characterized in that: A first water outlet pipe (13) connected to a water outlet (5) in the third-stage filter tank (3) is fixedly disposed in the third-stage filter tank (3), and a filter screen (14) is fixedly disposed at one end of the first water outlet pipe (13) away from the water outlet (5).

9. A freshwater pearl oyster breeding equipment according to claim 1, characterized in that: The water level equalization device comprises a main pipe (23) fixedly arranged on the drainage pipe (21); an exhaust pipe (24) extending upward is arranged on one side of the main pipe (23); the lower end of the exhaust pipe (24) is connected to the outside; a connecting pipe (25) connected to the above-mentioned water equalization tank (22) is arranged on the exhaust pipe (24); an adjusting pipe (26) for adjusting the water level is movably arranged at one end of the connecting pipe (25) located in the above-mentioned water equalization tank (22); a valve (27) for controlling the connection and closing of the exhaust pipe (24) with the drainage pipe (21) to achieve drainage is arranged at one end of the main pipe (23) away from the above-mentioned drainage pipe (21); the above-mentioned exhaust pipe (24) is located between the valve (27) and the drainage pipe (21).

10. A freshwater pearl oyster breeding equipment according to claim 1, characterized in that: A first peripheral edge (28) is fixedly provided on the outer periphery of the upper end of the water pool (17), and a second peripheral edge (29) is fixedly provided on the outer periphery of the water pool (17), wherein the second peripheral edge (29) is located between the first peripheral edge (28) and the bottom plate (18).

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