Intensive aquatic seedling intermediate cultivation system

Abstract

The invention provides an intensive aquatic seedling intermediate cultivation system. The intensive aquatic seedling intermediate cultivation system comprises at least one land-based barrel, a tail water treatment pond and a U-shaped pipeline used for communicating the land-based barrel with the tail water treatment pond. One end of the U-shaped pipeline is connected to the center of the bottom of the land-based barrel, and the other end is connected to the middle of the tail water treatment pond; a blow-off pipe is further arranged in the center of the bottom of the land-based barrel, and the lower end of the blow-off pipe is connected with the U-shaped pipeline; a plurality of round holes are formed in the lower end of the blow-off pipe, and the upper end of the blow-off pipe is as high as the top of the land-based drum; a water return pipe is arranged between the tail water treatment pond and the land-based barrel and connected with a water pump, and the water pump pumps purified water in the tail water treatment pond back into the land-based barrel through the water return pipe. Through the designed U-shaped pipeline and the water return pipe, continuous recycling of water in the land-based drum and the tail water treatment pond is achieved, settled feed and excrement are cleared away in time in the water circulation process, and pollution of the feed and the excrement to the water is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture systems, and in particular to an intensive aquatic seedling intermediate cultivation system. Background Art

[0002] Intermediate cultivation of aquatic seedlings is an important link in the aquaculture chain. In the process of intermediate cultivation of aquatic seedlings, feeding sufficient high-quality feed and maintaining sufficiently clean water quality are the key to ensuring the survival rate and rapid growth of seedlings. However, in the process of conventional intermediate cultivation of seedlings, the seedling stocking density is relatively low, the utilization rate of bait is limited, and a lot of the fed feed is deposited in the water. In addition, the seedlings have a large food intake and excrete a lot of feces. If the residual feed and feces in the water body cannot be cleaned out of the cultivation pond in time, the water quality of the intermediate cultivation pond will be polluted, reducing the efficiency of aquatic seedling cultivation. Therefore, it is urgent to explore new intensive intermediate cultivation models for aquatic seedlings. Summary of the invention

[0003] The purpose of the present invention is to provide an intensive aquatic seedling intermediate cultivation system, which can solve the problem that during the aquatic seedling intermediate cultivation process, residual feed and feces in the water body cannot be discharged in time and pollute the water quality of the intermediate cultivation pool.

[0004] The objective of the present invention is achieved through the following technical solutions: An intensive aquatic seedling intermediate cultivation system comprises at least one land-based drum, a tailwater treatment pool and a U-shaped pipe for connecting the land-based drum and the tailwater treatment pool; one end of the U-shaped pipe is connected to the bottom center of the land-based drum, and the other end is connected to the middle of the tailwater treatment pool; a sewage pipe is also arranged at the bottom center of the land-based drum, and the lower end of the sewage pipe is connected to the U-shaped pipe; a plurality of circular holes are arranged at the lower end of the sewage pipe for discharging feed and feces, and the upper end of the sewage pipe is at the same height as the top of the land-based drum; a return pipe is arranged between the tailwater treatment pool and the land-based drum, and the return pipe is connected to a water pump, and the water pump draws the purified water in the tailwater treatment pool back to the land-based drum through the return pipe.

[0005] Preferably, the bottom of the land-based cylinder is a cone structure.

[0006] Preferably, a filter dam is provided in the tailwater treatment pool, which divides the tailwater treatment pool into two areas, one area is an ecological purification pool, and the other area is a water storage pool; one end of the U-shaped pipe is connected to the ecological purification pool, and the water in the ecological purification pool enters the water storage pool after being filtered by the filter dam.

[0007] Preferably, filter-feeding and omnivorous fish are stocked in a certain proportion in the ecological purification pool; the filter dam is a frame built of hollow bricks, and the interior of the frame is filled with filter materials; and a geomembrane is laid on the bottom of the reservoir.

[0008] Preferably, a Roots blower is arranged outside the water reservoir; a nano oxygenation disk is arranged at the bottom of the water reservoir, and the nano oxygenation disk is connected to the Roots blower to supply oxygen to the water in the water reservoir; a waterwheel-type aerator is arranged in the ecological purification pool.

[0009] Preferably, each of the land-based barrels is provided with an L-shaped water inlet pipe; the L-shaped water inlet pipe is divided into a horizontal section and a vertical section, and the horizontal section and the vertical section are rotatably connected through a joint; an electric-controlled valve is provided on the horizontal section; and an adjustment drive component for adjusting the angle between the vertical section and the water surface is provided on the side wall of the land-based barrel.

[0010] Preferably, the adjustment drive assembly includes an electric push rod arranged on the side wall of the land-based barrel and a sliding rod arranged on the outer wall of the vertical section, and the lower end of the electric push rod is slidably mounted on the sliding rod.

[0011] Preferably, a control cabinet and a feeding machine are also included, and the feeding machine, the electric push rod, the electric control valve and the water pump are all controlled by the control cabinet.

[0012] Preferably, the outer movable sleeve of the sewage pipe is provided with a plurality of blades; the blades are made of floating materials, and the blades move on the sewage pipe with the change of water surface height, and are used for water flow buffering.

[0013] Preferably, two through holes are provided on the top of the sewage pipe for people to manually pull the sewage pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) In the intensive aquatic seedling intermediate cultivation system of the present invention, the sewage pipe, the return pipe and the water pump connect the land-based drum and the tailwater treatment tank to form a water body circulation. The feed and feces deposited in the water continuously enter the tailwater treatment tank through the sewage pipe as the water body circulates, thereby avoiding the feed and feces from accumulating in the land-based drum for a long time to pollute the water quality.

[0015] 2) The present invention also flexibly controls the water flow size and the angle between the L-shaped water inlet pipe and the water surface by designing an electric control valve and an adjusting drive component, thereby controlling the speed of the water flow rotation inside the barrel, avoiding the water flow rotating too fast which is not conducive to the seedlings feeding, and achieving the purpose of reasonable feeding and efficient sewage discharge.

[0016] 3) The present invention also uniformly regulates the operation of the feeder, the electric push rod, the electric control valve and the water pump through a control cabinet, and controls the start of the feeder by setting the feeding time. The electric push rod and the electric control valve control the water flow size and the angle between the L-shaped water inlet pipe and the land-based barrel during the start-up of the feeder to adapt to the feeding of the seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic structural diagram of an intensive aquatic seed intermediate cultivation system of the present invention.

[0018] Figure 2 It is a vertical cross-sectional schematic diagram of an intensive aquatic seed intermediate cultivation system of the present invention.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the medium L-shaped water inlet pipe.

[0020] The following are the descriptions of the reference numerals: 1: land-based drum, 2: tailwater treatment pool, 3: U-shaped pipe, 4: sewage pipe, 5: return pipe, 6: water pump, 7: control cabinet, 101: L-shaped water inlet pipe, 102: electric control valve, 103: electric push rod, 104: sliding rod, 1011: horizontal section, 1012: vertical section, 1013: joint, 201: filter dam, 202: ecological purification pool, 203: reservoir, 204: Roots blower, 205: nano oxygen disc, 206: waterwheel aerator, 401: round hole, 402: blade, 403: through hole. DETAILED DESCRIPTION

[0021] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0022] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand the advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0023] Embodiment 1 like Figure 1-2As shown, an intensive aquatic seedling intermediate cultivation system comprises at least one land-based barrel 1, a tailwater treatment pool 2 and a U-shaped pipe 3 for connecting the land-based barrel 1 and the tailwater treatment pool 2; one end of the U-shaped pipe 3 is connected to the bottom center of the land-based barrel 1, and the other end is connected to the middle of the tailwater treatment pool 2; a sewage pipe 4 is also provided at the bottom center of the land-based barrel 1, and the lower end of the sewage pipe 4 is connected to the U-shaped pipe 3; a plurality of circular holes 401 are provided at the lower end of the sewage pipe 4 for discharging feed and feces, and the upper end of the sewage pipe 4 is at the same height as the top of the land-based barrel 1; a return pipe 5 is provided between the tailwater treatment pool 2 and the land-based barrel 1, and the return pipe 5 is connected to a water pump 6, and the water pump 6 pumps the purified water in the tailwater treatment pool 2 back into the land-based barrel 1 through the return pipe 5.

[0024] In the specific implementation process, several land-based drums are built on a convenient and flat ground. The land-based drums are generally 3 meters in diameter and more than 1.4 meters high. The size of the round hole 401 is adjusted accordingly according to the size of the seedlings, so that it can discharge feces and feed while preventing the seedlings from escaping.

[0025] In this embodiment, the sewage pipe 4, the return pipe 5 and the water pump 6 connect the land-based barrel 1 and the tailwater treatment tank 2 to form a water body circulation. The feed and feces deposited in the water continuously enter the tailwater treatment tank 2 through the sewage pipe 4 as the water body circulates, avoiding the feed and feces from accumulating in the land-based barrel 1 for a long time to pollute the water quality. The U-shaped pipe 3 makes the water levels in the land-based barrel 1 and the tailwater treatment tank 2 equal to each other. When the water pump 6 extracts the water in the tailwater treatment tank 2 and transports it to the land-based barrel 1, the water level in the tailwater treatment tank 2 drops, while the water level in the land-based barrel 1 rises. Under the action of atmospheric pressure, the water in the land-based barrel 1 automatically flows to the tailwater treatment tank 2 through the U-shaped pipe 3, and in this process, the feces and feed at the bottom of the land-based barrel 1 flow to the tailwater treatment tank 2.

[0026] Furthermore, the bottom of the land-based drum 1 is a cone structure. The cone structure causes the water to rapidly rotate in the land-based drum 1 to form a vortex, which rapidly gathers the feces and feed deposited at the bottom near the circular hole 401, and enters the U-shaped pipe 3 with the help of the water flow, and is discharged into the tailwater treatment pool 2.

[0027] Furthermore, a filter dam 201 is provided in the tailwater treatment pool 2, and the filter dam 201 divides the tailwater treatment pool 2 into two areas, one area is the ecological purification pool 202, and the other area is the water storage pool 203; one end of the U-shaped pipe 3 is connected to the ecological purification pool 202, and the water in the ecological purification pool 202 enters the water storage pool 203 after being filtered by the filter dam 201.

[0028] In the specific implementation, the ecological purification pool 202 is generally rectangular in shape, with a depth of more than 3m and a water depth of more than 2.5m. Silver carp, bighead carp, tilapia, crucian carp and other filter-feeding and omnivorous fish are stocked in the ecological purification pool 202 in a certain proportion. The ecological purification pool 202 receives the tail water from the land-based drum 1. The fish in the ecological purification pool 202 feed on the residual bait and feces in the tail water, and no feed is fed throughout the process. The ecological purification pool 202 uses a waterwheel-type aerator 206 to increase oxygen to keep the dissolved oxygen concentration in the water body above 5.0 mg / L. The ratio of the water storage capacity of the ecological purification pool 202 to the water storage capacity of all land-based drums 1 is 15:1 to ensure the water treatment effect of the ecological purification pool 202.

[0029] Furthermore, filter-feeding and omnivorous fish are stocked in a certain proportion in the ecological purification pool 202; the filter dam 201 is a frame built of hollow bricks, and the interior of the frame is filled with filter materials; and a geomembrane is laid at the bottom of the reservoir 203.

[0030] Furthermore, a Roots blower 204 is arranged outside the water reservoir 203; a nano oxygenation disk 205 is arranged at the bottom of the water reservoir 203, and the nano oxygenation disk 205 is connected to the Roots blower 204 to supply oxygen to the water in the water reservoir 203; a waterwheel-type aerator 206 is arranged in the ecological purification pool 202.

[0031] In the specific implementation, the filter dam 201 is connected to the ecological purification pool 202, and the water treated by the filter dam 201 flows into the reservoir 203. The filter dam 201 is a rectangular parallelepiped, 6 meters long and 2 meters wide, and its height is flush with the ecological purification pool 202. The filter dam frame is built with hollow bricks, and the frame is filled with filter materials such as oyster shells and volcanic rocks. On the other side of the filter dam is the reservoir 203, and the water storage capacity of the reservoir 203 is 1:1 with the water storage capacity of all land-based barrels 1. A geomembrane is laid at the bottom of the reservoir 203, and the bottom is oxygenated by the Roots blower 204 and the nano oxygenation disk 205 to keep the dissolved oxygen concentration in the water body above 8.0 mg / L. By regularly adding probiotics, chlorella and oocysts to the reservoir 203, the concentration of ammonia nitrogen and nitrite in the water body is further controlled to maintain good water quality in the reservoir.

[0032] like Figure 3 As shown, further, each of the land-based drums 1 is provided with an L-shaped water inlet pipe 101; the L-shaped water inlet pipe 101 is divided into a horizontal section 1011 and a vertical section 1012, and the horizontal section 1011 and the vertical section 1012 are rotatably connected through a joint 1013; an electric control valve 102 is provided on the horizontal section 1011; and an adjustment drive assembly for adjusting the angle between the vertical section 1012 and the water surface is provided on the side wall of the land-based drum 1. The L-shaped water inlet pipe 101 is a PVC pipe with a diameter of 100 mm. When installed, the L-shaped water inlet pipe 101 forms an angle of 60°-75° with the water surface.

[0033] The horizontal section 1011 and the vertical section 1012 can be connected to the joint 1013 by internal and external thread engagement or other methods. The joint 1013 can be a universal ball type rotary joint, a DN flange type rotary joint, or other joints or connection methods that can achieve rotational connection.

[0034] Furthermore, the adjustment drive assembly includes an electric push rod 103 arranged on the side wall of the land-based barrel 1 and a slide rod 104 arranged on the outer wall of the vertical section 1012 , and the lower end of the electric push rod 103 is slidably mounted on the slide rod 104 .

[0035] In this embodiment, the water flow size and the angle between the L-shaped water inlet pipe 101 and the water surface are flexibly controlled by designing the electric control valve 102 and adjusting the drive component, thereby controlling the speed of the water flow rotation inside the barrel 1 to avoid the water flow rotating too fast which is not conducive to the seedlings eating, thereby achieving the purpose of reasonable feeding and efficient sewage discharge.

[0036] Furthermore, it also includes a control cabinet 7 and a feeder 8 . The feeder 8 , the electric push rod 103 , the electric control valve 102 and the water pump 6 are all controlled by the control cabinet 7 .

[0037] In this embodiment, the control cabinet 7 uniformly regulates the operation of the feeder 8, the electric push rod 103, the electric control valve 102 and the water pump 6, and controls the start of the feeder 8 by setting the feeding time. The electric push rod 103 and the electric control valve 102 control the water flow size and the angle between the L-shaped water inlet pipe 101 and the land-based barrel 1 during the start-up of the feeder 8 to adapt to the feeding of the seedlings.

[0038] Furthermore, the outer movable sleeve of the sewage pipe 4 is provided with a plurality of blades 402; the blades 402 are made of floating materials, and the blades 402 move on the sewage pipe 4 with the change of the water surface height, and are used for water flow buffering. The blades 402 can slow down the rotation speed of the upper water flow of the land-based drum 1, reduce the physical energy consumed by the seedlings swimming against the water during the cultivation process, and reduce the excessive concentration of the seedlings in the middle of the land-based drum 1, so that the seedlings are concentrated in the middle of the land-based drum 1, but not too concentrated, and slow down the water flow speed so that the feed can float on the water surface more slowly, which is convenient for the seedlings to eat.

[0039] Specifically, when feeding, the speed of the water flow rotation inside the land-based barrel 1 is reduced to facilitate the seedlings to fully feed and reduce unnecessary feed waste; after feeding, the speed of the water flow rotation inside the land-based barrel 1 is increased to facilitate the concentration of feed residues near the U-shaped pipe 3 and quickly discharge them out of the land-based barrel 1 through bottom drainage.

[0040] Furthermore, two through holes 403 are provided on the top of the sewage pipe 4 for people to lift the sewage pipe 4 manually.

[0041] In the description of the present invention, it is necessary to understand that the terms "middle", "length", "up", "down", "front", "back", "vertical", "horizontal", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, the first feature "on" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. "Multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The above is only for explaining the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention without creative work should be included in the protection scope of the present invention.

Claims

1. An intensive aquatic seed intermediate cultivation system, comprising at least one land-based barrel (1), a tailwater treatment tank (2), and a U-shaped pipe (3) for connecting the land-based barrel (1) and the tailwater treatment tank (2); one end of the U-shaped pipe (3) is connected to the bottom center of the land-based barrel (1), and the other end is connected to the middle of the tailwater treatment tank (2); characterized in that: A sewage pipe (4) is also provided at the bottom center of the land-based barrel (1), and the lower end of the sewage pipe (4) is connected to the U-shaped pipe (3); a plurality of circular holes (401) are provided at the lower end of the sewage pipe (4) for discharging feed and feces, and the upper end of the sewage pipe (4) is at the same height as the top of the land-based barrel (1); a return pipe (5) is provided between the tailwater treatment tank (2) and the land-based barrel (1), and the return pipe (5) is connected to a water pump (6), and the water pump (6) pumps the purified water in the tailwater treatment tank (2) back into the land-based barrel (1) through the return pipe (5).

2. The intensive aquatic seed intermediate cultivation system according to claim 1, characterized in that: The bottom of the land-based cylinder (1) is a cone structure.

3. The intensive aquatic seed intermediate cultivation system according to claim 1, characterized in that: A filter dam (201) is provided in the tailwater treatment pool (2), and the filter dam (201) divides the tailwater treatment pool (2) into two areas, one area being an ecological purification pool (202), and the other area being a water storage pool (203); one end of the U-shaped pipe (3) is connected to the ecological purification pool (202), and the water in the ecological purification pool (202) enters the water storage pool (203) after being filtered by the filter dam (201).

4. The intensive aquatic seed intermediate cultivation system according to claim 3, characterized in that: The ecological purification pool (202) is stocked with filter-feeding and omnivorous fish in a certain proportion; the filter dam (201) is a frame constructed of hollow bricks, and the interior of the frame is filled with filter materials; and a geomembrane is laid on the bottom of the reservoir (203).

5. The intensive aquatic seed intermediate cultivation system according to claim 4, characterized in that: A Roots blower (204) is arranged outside the water reservoir (203); a nano oxygenation disk (205) is arranged at the bottom of the water reservoir (203); the nano oxygenation disk (205) is connected to the Roots blower (204) to supply oxygen to the water in the water reservoir (203); and a waterwheel-type aerator (206) is arranged in the ecological purification pool (202).

6. The intensive aquatic seed intermediate cultivation system according to claim 1, characterized in that: Each of the land-based barrels (1) is provided with an L-shaped water inlet pipe (101); the L-shaped water inlet pipe (101) is divided into a horizontal section (1011) and a vertical section (1012); the horizontal section (1011) and the vertical section (1012) are rotatably connected via a joint (1013); an electric control valve (102) is provided on the horizontal section (1011); and an adjustment drive assembly for adjusting the angle between the vertical section (1012) and the water surface is provided on the side wall of the land-based barrel (1).

7. The intensive aquatic seed intermediate cultivation system according to claim 6, characterized in that: The adjustment drive assembly comprises an electric push rod (103) arranged on the side wall of the land-based drum (1) and a sliding rod (104) arranged on the outer wall of the vertical section (1012), and the lower end of the electric push rod (103) is slidably mounted on the sliding rod (104).

8. The intensive aquatic seed intermediate cultivation system according to claim 7, characterized in that: It also includes a control cabinet (7) and a feeding machine (8), wherein the feeding machine (8), the electric push rod (103), the electric control valve (102) and the water pump (6) are all controlled by the control cabinet (7).

9. The intensive aquatic seed intermediate cultivation system according to claim 1, characterized in that: The outer movable sleeve of the sewage pipe (4) is provided with a plurality of blades (402); the blades (402) are made of a floating material, and the blades (402) move on the sewage pipe (4) as the water surface height changes, and are used for water flow buffering.

10. The intensive aquatic seed intermediate cultivation system according to claim 1, characterized in that: The top of the sewage pipe (4) is provided with two through holes (403) for people to manually pull the sewage pipe (4).

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