A Sebastiscus marmoratus seedling rearing device

Abstract

The present invention discloses a Sebastiscus marmoratus seedling rearing device, belonging to the technical field of aquaculture. It includes a circular culture pond, and a water supply component and a sewage collection component are coaxially sleeved inside the culture pond. The water supply component is arranged in contact with the inner wall of the culture pond, and the sewage collection component is arranged along the axis of the culture pond; the water supply component is of an annular structure, and the water outlet end of the water supply component is communicated with the inner cavity of the culture pond; the sewage collection component includes a sewage collection column body with a hollow interior, the sewage collection column body is arranged inside the water supply component, and the side wall of the sewage collection column body is provided with sewage collection holes; a detachable partition filter screen is also arranged between the water supply component and the sewage collection component. The seedling rearing device of the present invention performs water treatment through the cooperation of the water supply component and the sewage collection component, which can improve the cleanliness of the culture water, improve the survival rate of fry, and has a simple structure and low cost; the setting of the partition filter screen helps to carry out partition culture according to the state of the fry.

Description

Technical Field

[0001] The invention belongs to the field of aquaculture, and in particular relates to a brown scorpionfish seedling raising device. Background Art

[0002] The brown scorpionfish, with its delicious flavor, delicate and elastic texture, boasts rich nutritional value and high economic value, making it a popular, economically viable small fish. Currently, artificial breeding of the brown scorpionfish relies primarily on catching natural species, which is insufficient to meet aquaculture demand. Overfishing has led to a sharp decline in its natural resources and is damaging natural resources. Therefore, further research into indoor artificial breeding techniques for this fish is necessary to achieve large-scale seed production. This would not only meet the seed needs of aquaculture farmers, but also, through increased reproduction and release, restore and protect natural resources, offsetting the negative impacts of overfishing.

[0003] JP2016513229 relates to a fish farming apparatus comprising a central tank and one or more surrounding tanks, wherein the central tank is used for water treatment and the one or more surrounding tanks are used for fish farming. The apparatus further comprises a flow applicator, whereby the water flow rate in the surrounding tanks is independently of the water exchange rate. The apparatus further comprises a plurality of movable and permeable segment walls in each surrounding tank, which divide the surrounding tank into tank segments. Each surrounding tank is provided with one or two outlets and one or two inlets, and a substantially horizontal / laminated water flow structure is provided in each of the one or more surrounding tanks. The apparatus also describes the use of the apparatus for producing fish species that particularly require high flow rates and fish species that require a horizontal / laminated flow structure.

[0004] Patent application number US08252257 relates to an aquaculture system for filtering water, comprising a filter rotatably carried in a container for receiving water to be filtered. The filter includes a porous elastic screen forming the outer layer of the filter and configured to remove particles from water passing through the screen. A vacuum cleaning device is positioned in direct contact with the elastic screen to remove particles collected on the outer surface of the elastic screen. A water nozzle supplies a stream of water to the elastic screen to remove particles not previously removed by the vacuum cleaning device. A rotating device is connected to the filter to rotate the filter in the container.

[0005] Analyzing the above existing technologies, how to ensure water quality in aquaculture equipment is the focus of research by all parties. However, the water treatment devices in existing aquaculture equipment are mostly complex in structure, high in cost, and difficult to maintain. Summary of the Invention

[0006] The object of the present invention is to provide a Sebastiscus marmoratus seedling rearing device with a simple structure and low cost, which can improve the cleanliness of the breeding water, and can also achieve partitioned breeding, which is beneficial to improving the survival rate of fry.

[0007] The technical solution adopted by the present invention to achieve the above object is as follows:

[0008] A Sebastiscus marmoratus seedling rearing device includes a circular breeding pond, and a water supply component and a sewage collection component are coaxially sleeved inside the breeding pond. The water supply component is arranged in contact with the inner wall of the breeding pond, and the sewage collection component is arranged along the axis of the breeding pond;

[0009] The water supply component is of an annular structure, and the water outlet end of the water supply component is communicated with the inner cavity of the breeding pond;

[0010] The sewage collection component includes a sewage collection column body with a hollow interior. The sewage collection column body is arranged inside the water supply component. The side wall of the sewage collection column body is provided with sewage collection holes, and a sewage discharge pipe is connected to the bottom of the sewage collection column body;

[0011] A detachable separation filter screen is also arranged between the water supply component and the sewage collection component.

[0012] In some embodiments, one end of the separation filter screen is matched with the water supply component, and the other end of the separation filter screen is matched with the sewage collection column body. Specifically, one edge of the separation filter screen is attached to the inner wall of the annular water supply component, and the other edge is attached to the outer wall of the sewage collection column body.

[0013] By adopting the above technical solution, through the cooperation of the water supply component arranged at the edge of the breeding pond and the sewage collection component arranged in the middle of the breeding pond, water supply and sewage discharge are realized, the cleanliness of the breeding water can be guaranteed, and a good living environment can be provided for Sebastiscus marmoratus fry. The setting of the separation filter screen can partition the breeding space, so as to help breed fry in partitions according to individual size or age, which helps to reduce the internal competition within the population and ensure the survival rate of fry.

[0014] In the above technical solution, the water supply component is arranged around the outer edge of the breeding pond, and the sewage collection component is arranged in the middle. The water flow flows from the outside to the inside along the radial direction of the breeding pond. The overall structure is simple and easy to maintain, which helps to discharge impurities such as feed debris and fry feces during the breeding process, and improves the cleanliness of the water body.

[0015] According to an embodiment of the present invention, the water supply component includes a water supply base body that is internally hollow and annular. An opening or a water inlet pipe for water inlet is provided at the top of the water supply base body. The outer side wall of the water supply base body is attached to the inner wall of the breeding pond, and a water outlet is provided on the inner side wall of the water supply base body.

[0016] Inside the water supply matrix, a filter matrix is coaxially arranged. The filter matrix is hollow inside, and a first water filtering part and a second water filtering part are sequentially arranged up and down inside the filter matrix. The water outlet end of the first water filtering part is communicated with the water inlet end of the second water filtering part, and the water outlet end of the second water filtering part is communicated with the inner cavity of the water supply matrix.

[0017] Thus, through the two - stage filtration of the first water filtering part and the second water filtering part, it can be ensured that the impurity content in the water body entering the breeding pond is greatly reduced, providing a good environment for the growth of fry. And the breeding water is filtered twice, most of the energy contained in it can be consumed, the water flow velocity is reduced, the water flow is prevented from being too rapid, and the impact on the growth of fry is reduced.

[0018] According to an embodiment of the present invention, the first water filtering part includes a hollow diversion matrix. Inside the diversion matrix, a filter plate is horizontally arranged. Multiple filter plates can be arranged as needed to ensure the filtering effect. A diversion disc body is arranged at the bottom of the diversion matrix. The edge of the diversion disc body abuts against the inner wall of the filter matrix, and a notch is configured at the edge of the diversion disc body.

[0019] The filtration of the breeding water is realized through the filter plate. The diversion disc body abuts against the filter matrix, which can guide the water flow to flow out through the notch at the edge of the diversion disc body and flow downward along the inner wall of the filter matrix. In this way, the noise generated during the water flow can be reduced, and the energy in the water flow can be slowly released, reducing the impact force on the inside of the water supply component during the water flow falling process and maintaining the structural stability.

[0020] Furthermore, the second water filtering unit includes a filter column body. The inside of the filter column body is filled with a filter element. The bottom of the filter column body is communicated with the inner cavity of the water supply matrix through a conduit.

[0021] Furthermore, a ring - shaped separation plate is arranged between the outer wall of the filter column body and the inner wall of the filter matrix. The top of the separation plate is connected to the diversion disc, and a gap is arranged between the bottom end of the separation plate and the filter matrix. Thus, the filtered water body can enter from the top of the second water filtering part, flow to the inner cavity of the water supply matrix through the conduit at its bottom after being filtered by the filter element, and flow into the breeding space inside the breeding pond.

[0022] Furthermore, the filter matrix is an inverted conical structure, and the diversion disc body is an inverted conical structure. Thus, the noise generated during the water flow falling process can be further reduced.

[0023] Furthermore, a medicine bin is arranged between the outer side wall of the filter matrix and the inner side wall of the water supply matrix. The side wall of the medicine bin is provided with holes.

[0024] Furthermore, the top of the inner side wall of the water supply matrix is provided with a water outlet.

[0025] Thus, reagents for adjusting the water quality of aquaculture water or drugs for preventing and treating fry diseases can be put into the reagent bin. When the water flow passes through the reagent bin, the dissolution of the reagents or drugs can be achieved to ensure the effect of drug application. The gap between the filtering matrix and the water supply matrix becomes the dissolution and dilution space for the reagents.

[0026] Furthermore, the bottom of the reagent bin is rotatably connected to the bottom of the water supply matrix.

[0027] Furthermore, a plurality of vane plates are arranged around the reagent bin.

[0028] According to an embodiment of the present invention, the extending direction of the mesh body of the partition filter screen intersects with the radial direction of the aquaculture pond, and the partition filter screen can rotate circumferentially around the axis of the aquaculture pond.

[0029] Furthermore, a plurality of partition filter screens are arranged in the aquaculture pond, and the mesh sizes of the plurality of partition filter screens are different. Thus, the aquaculture space inside the aquaculture pond is divided into multiple aquaculture areas by the plurality of partition filter screens. The mesh sizes of the partition filter screens are set according to the aquaculture situation of the fry, so that the fry can be driven into different aquaculture areas according to their sizes respectively, which is convenient for zoning management.

[0030] In particular, the partition filter screen can rotate, so that the sizes of each aquaculture area can be adjusted as needed, with strong practicability; and it also helps to collect impurities in the water body.

[0031] In addition, the partition filter screen is arranged obliquely to the diameter direction of the aquaculture pond, that is, there is a certain angle with the water flow direction from outside to inside, so as to intercept and filter impurities such as feed residues and fry feces in the water body by using the partition filter screen, thereby improving the cleanliness of the water body.

[0032] According to an embodiment of the present invention, plate-shaped or strip-shaped floating bodies are arranged on the mesh body of the partition filter screen, and one end of the floating body is connected to the mesh body of the partition filter screen.

[0033] Thus, the floating bodies arranged on the mesh body can be used to prevent the middle part of the partition filter screen from sinking and keep the partition filter screen in a stretched state in the water flow. In addition, the floating bodies can rotate or float under the impact of the water flow, so as to beat or impact the mesh body of the partition filter screen, which helps to promote the falling of the impurities adhered to the mesh body, realize the cleaning of the mesh body, prevent the deposition of impurities and avoid blockage. And the setting of the floating bodies can promote the generation of local turbulence in the water body near the mesh body, thereby increasing the water flow velocity near the mesh body, which helps to carry the impurities falling from the mesh body towards the sewage collection component.

[0034] Furthermore, the floating body has an irregular edge; specifically, it can be set to be serrated or wavy. In this way, the probability of the floating body hooking the net body can be increased, and the effect of the floating body slapping and hitting the net body can be improved. Moreover, setting an irregular edge also helps to disrupt the nearby water flow and improve the sewage collection effect.

[0035] The setting of the floating body also helps to simulate the natural ecological environment and helps to exercise the stress response of fry during the breeding process. In addition, the setting of the floating body also helps to drive away the fry and reduce the probability of the fry swimming between different breeding areas through the partition filter screen.

[0036] According to an embodiment of the present invention, a detachable habitat component is provided inside the breeding pond. The habitat component includes a support frame and a single habitat nest; a plurality of support frames are connected end to end to form an annular structure coaxially sleeved with the sewage collection column body, and a plurality of single habitat nests are arranged on the side of the support frame.

[0037] Furthermore, at least one end of the single habitat nest is open, and the opening of the single habitat nest is arranged towards the outside of the support frame.

[0038] Thus, through the setting of the habitat component, a suitable habitat and hiding place can be provided for the fry. Therefore, it can meet the breeding needs of Sebastiscus marmoratus fry. Because, after 35-40 days of breeding, the juveniles of Sebastiscus marmoratus begin to metamorphose into juveniles, not only their morphology changes, but also their habitat mode changes, from aggregating and floating in the water body to lurking against the pool wall and in the corners of the pool. Setting a detachable habitat component can meet the habit needs of fry in different forms.

[0039] Furthermore, an installation structure for cooperating with the bottom of the support frame is provided at the bottom of the breeding pond, such as setting an annular installation groove or installation rib for cooperating with the bottom of the support frame.

[0040] Furthermore, the habitat component is located between the water supply component and the sewage collection component.

[0041] Furthermore, the single habitat nest is made of canvas material with small holes, and the diameter of the small holes on the canvas material is not less than 0.5 cm.

[0042] Furthermore, the single habitat nest has a cross-section in the shape of a circle, an ellipse or a regular hexagon, etc.

[0043] Furthermore, one end of the single habitat nest is open and the other end is closed, and the closed end of the single habitat nest is arranged towards the inside of the support frame; the cross-sectional diameter of the single habitat nest gradually decreases from the open end to the closed end.

[0044] Through the setting of the single habitat nest, not only a habitat and hiding place are provided for the fry, but also it helps to intercept impurities in the water body and avoid the turbidity of the breeding water body.

[0045] According to an embodiment of the present invention, the support frame is configured with a horizontally arranged mesh sheet. The edge of the mesh sheet is connected to the frame body of the support frame, and an aerator is arranged on the mesh sheet, and the output end of the aerator is arranged below the mesh sheet.

[0046] Furthermore, the mesh sheet is elastically connected to the support frame.

[0047] Furthermore, a plurality of mesh sheets are arranged in a staggered manner at different heights inside the support frame. The height difference between two adjacent mesh sheets is 0.5 m - 1.0 m.

[0048] Furthermore, the area of the mesh sheet accounts for 1 / 3 - 1 / 2 of the cross-sectional area inside the support frame.

[0049] The arrangement of the mesh sheet also provides a hiding platform for fry, which conforms to the living habits of Sebastiscus marmoratus. The arrangement of the aerator can not only increase the oxygen content of the aquaculture water, but also drive the mesh sheet to vibrate by the aeration airflow, and can also promote the floating of the single habitat nest, generating water body disturbance. On the one hand, it can promote the dissolution of the aeration gas and accelerate the increase of the water body oxygen content; on the other hand, it can prevent excessive impurities from depositing on the mesh sheet and the single habitat nest, prevent blockage, and improve the cleanliness. The collision and mixing of the aeration airflow and the water flow help to promote the water body fluctuation and improve the sewage discharge effect.

[0050] According to an embodiment of the present invention, a vertical rotating shaft is arranged inside the sewage collection cylinder, and a plurality of stirring blades are arranged around the outside of the rotating shaft.

[0051] The rotating shaft can be connected to a servo motor to realize rotation, and the connected stirring blades can promote the rotation of the impurities entering the inside of the sewage collection cylinder, which is helpful for sewage discharge, prevents the deposition and caking of impurities, and can avoid blocking the sewage discharge pipeline, etc.

[0052] The sewage collection cylinder is configured with a cleaning component, and the cleaning component includes a brush head, a connecting rod and a moving part. One end of the connecting rod is fixedly connected to the rotating shaft, the other end of the connecting rod is connected to the moving part, the moving part is movably connected to the top edge of the sewage collection cylinder, and one end of the brush head is connected to the moving part, and one side of the brush head abuts against the side wall of the sewage collection cylinder.

[0053] Thus, the rotating shaft can drive the moving part to rotate along the top edge of the sewage collection cylinder, thereby driving the brush head to clean the outer wall of the sewage collection component, which can prevent a large amount of impurities from adhering to the surface of the sewage collection cylinder, and can also prevent the sewage collection holes on the sewage collection cylinder from being blocked, ensuring the sewage collection effect.

[0054] According to an embodiment of the present invention, the cleaning component further includes an eccentric ring body, and the eccentric ring body is eccentrically sleeved on the outside of the sewage collection cylinder, and the eccentric ring body is in rolling connection with the moving part.

[0055] Further, a plurality of balls are arranged inside the moving part. The eccentric ring body and the moving part are connected by rolling through the balls, and the moving part and the outer wall of the sewage collection cylinder are also connected by rolling through the balls.

[0056] Thus, during the process of the rotating shaft driving the moving part to rotate, the eccentric ring body can be driven to rotate eccentrically, thereby driving the water body near the outside of the sewage collection cylinder to generate a swirl, increasing the water flow velocity, generating noise, and thus helping to drive away the fry nearby and prevent the fry from straying into the inside of the sewage collection cylinder. On the other hand, the increase in the water flow velocity also helps the impurities to enter the inside of the sewage collection cylinder through the sewage collection holes and prevents the water body and impurities inside the sewage collection cylinder from overflowing through the sewage collection holes, ensuring the sewage collection and drainage effects.

[0057] In addition, the arrangement of the eccentric ring body can drive the shaking of the sewage collection cylinder during its eccentric rotation, thereby helping to promote the discharge of impurities and sludge inside it and prevent blockage.

[0058] Further, a plurality of aerators are arranged around the outside of the sewage collection cylinder.

[0059] Thus, by providing an aeration airflow outside the sewage collection cylinder through the aerator, it helps to further increase the oxygen content of the water body inside the sewage collection cylinder, thereby promoting the aerobic decomposition of the collected impurities and sludge by the bacteria inside the sewage collection cylinder, and also helps to delay the process of anaerobic fermentation, and can reduce the release amount of odor gases such as ammonia nitrogen in the sewage collection cylinder. <(

[0060] In addition, the aeration airflow flows upward, and the impact between the bubbles and between the bubbles and the water flow will generate a local air pressure difference, which helps to generate water body disturbance, promote the flow of impurities, and the bubbles can wrap the impurities and carry them upward, which can prevent the sewage collection holes from being blocked, especially avoiding the blockage of the bottom sewage collection holes. By arranging the aerator outside the sewage collection cylinder, the aeration airflow can be used to impact the flocculated or agglomerated impurities and sludge to prevent the sewage collection holes from being blocked.

[0061] Furthermore, the aeration gas entering the inside of the sewage collection cylinder along with the water flow also helps to assist the fry that accidentally enter the inside of the sewage collection cylinder to swim out. Specifically, after the aeration gas enters the sewage collection cylinder, the pressure change in the local water body will be caused during its fragmentation process, which will further lead to the change of the local water flow direction, helping to assist the fry to swim out.

[0062] The present invention has the following beneficial effects compared with the prior art:

[0063] 1. The water supply component is arranged on the outer edge of the aquaculture pond, and the sewage collection component is arranged in the middle, with a simple structure and good sewage discharge effect;

[0064] 2. The water supply component is provided with a multiple - layer filtration structure. The settings of the first water - filtering part and the second water - filtering part can reduce the water flow rate and release the energy of the water body, avoiding the influence of too - fast water flow on the growth of fry.

[0065] 3. The partition filter net and the floating body cooperate, which can not only keep the net body stretched, but also clean the net body, avoiding the deposition of impurities and blocking the partition filter net; and it also helps to improve the sewage - discharging effect.

[0066] 4. The detachable habitat component is suitable for the different living habits of Sebastiscus marmoratus, with strong practicability.

[0067] 5. The aerator cooperates with the netting and the single - body habitat nests in the habitat component. On the one hand, it can increase the oxygen content in the water body; on the other hand, it can prevent excessive impurities from depositing on the netting and the single - body habitat nests, prevent blockage, and improve the sewage - discharging effect.

[0068] 6. The sewage - collecting component and the cleaning component cooperate, which helps with cleaning and prevents blockage; the setting of the eccentric ring body can drive the water body near the outside of the sewage - collecting cylinder to generate a swirl, which helps to drive away the nearby fry and improve the sewage - discharging effect.

[0069] Therefore, the present invention is a Sebastiscus marmoratus fry - breeding device with a simple structure and low cost, which can improve the cleanliness of the breeding water, realize partitioned breeding, and is beneficial to improving the survival rate of fry. Brief Description of the Drawings

[0070] Figure 1 is the overall structural schematic diagram of the Sebastiscus marmoratus fry - breeding device according to Embodiment 1 of the present invention;

[0071] Figure 2 is Figure 1 the partial enlarged schematic diagram of Part A in

[0072] Figure 3 is Figure 1 the internal mechanism schematic diagram of the water supply component shown;

[0073] Figure 4 is Figure 3 the partial enlarged schematic diagram of Part B in

[0074] Figure 5 is the overall structural schematic diagram of the Sebastiscus marmoratus fry - breeding device according to Embodiment 2 of the present invention;

[0075] Figure 6 is Figure 5 the structural schematic diagram of the habitat component shown;

[0076] Figure 7 is the overall structural schematic diagram of the Sebastiscus marmoratus fry - breeding device according to Embodiment 3 of the present invention;

[0077] Figure 8For Figure 7 Schematic assembly structure diagram of the cleaning component shown;

[0078] Figure 9 For Figure 8 Schematic internal structure diagram of the moving part shown.

[0079] Reference numerals in the drawings: breeding pond 10; water supply component 20; water supply base 21; water inlet pipe 22; water outlet 23; filtering base 24; first water filtering part 25; second water filtering part 26; diversion base 31; filter plate 32; diversion disc body 33; notch 34; filtering column body 35; filter element 36; conduit 37; first separation plate 38; second separation plate 39; sewage collection component 40; sewage collection column body 41; sewage collection hole 42; sewage discharge pipe 43; rotating shaft 44; stirring blade 45; partition filter screen 50; floating body 51; habitat component 60; support frame 61; habitat nest monomer 62; installation rib 63; mesh 64; spring 65; cleaning component 70; brush head 71; connecting rod 72; moving part 73; eccentric ring body 74; ball 75. Detailed implementation manners

[0080] The technical solutions of the present invention will be further described in detail below in conjunction with the detailed implementation manners and the drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0081] Embodiment 1

[0082] Figures 1 to 4 Schematically shows a Sebastiscus marmoratus seedling rearing device according to an embodiment of the present invention. As shown in the figure, the device includes a circular breeding pond 10, and a water supply component 20 and a sewage collection component 40 are coaxially sleeved inside the breeding pond 10. Among them, the water supply component 20 is a ring structure and is arranged in contact with the inner wall of the breeding pond 10, and the water outlet end of the water supply component 20 is communicated with the inner cavity of the breeding pond 10. The sewage collection component 40 is arranged along the axis of the breeding pond 10 and includes a sewage collection column body 41 with a hollow interior. The sewage collection column body 41 is arranged inside the water supply component 20. The side wall of the sewage collection column body 41 is provided with sewage collection holes 42, and the bottom of the sewage collection column body 41 is connected with a sewage discharge pipe 43. A detachable partition filter screen 50 is also provided between the water supply component 20 and the sewage collection component 40.

[0083] Specifically, the water supply component 20 includes a water supply base 21 that is hollow and ring-shaped inside. The top of the water supply base 21 is provided with a water inlet pipe 22 for water inlet. The outer side wall of the water supply base 21 is in contact with the inner wall of the breeding pond 10, and the inner side wall of the water supply base 21 is provided with a water outlet 23.

[0084] Inside the water supply matrix 21, a filter matrix 24 is coaxially arranged. The inside of the filter matrix 24 is hollow, and a first water filtering part 25 and a second water filtering part 26 are sequentially arranged up and down inside the filter matrix 24. The water outlet end of the first water filtering part 25 is communicated with the water inlet end of the second water filtering part 26, and the water outlet end of the second water filtering part 26 is communicated with the inner cavity of the water supply matrix 21. At the top of the inner side wall of the water supply matrix 21, a water outlet 23 is configured.

[0085] The first water filtering part 25 includes a hollow diversion matrix 31. Inside the diversion matrix 31, a filter plate 32 is horizontally arranged. According to needs, multiple filter plates 32 can be arranged to ensure the filtering effect. At the bottom of the diversion matrix 31, a diversion disk body 33 is provided. The edge of the diversion disk body 33 abuts against the inner wall of the filter matrix 24, and a notch 34 is configured at the edge of the diversion disk body 33. The second water filtering unit includes a filter column body 35. Inside the filter column body 35, a filter element 36 is filled. The bottom of the filter column body 35 is communicated with the inner cavity of the water supply matrix 21 through a conduit 37. Between the outer wall of the filter column body 35 and the inner wall of the filter matrix 24, an annular first separation plate 38 is provided. The top of the first separation plate 38 is connected to the diversion disk, and there is a gap between the bottom end of the first separation plate 38 and the filter matrix 24. Between the side wall inside the filter matrix 24 and the side wall inside the water supply matrix 21, a second separation plate 39 is provided.

[0086] Thus, through the two - stage filtration of the first water filtering part 25 and the second water filtering part 26, it can be ensured that the impurity content in the water body entering the breeding pond 10 is greatly reduced, providing a good environment for the growth of fry. And after the breeding water passes through two - stage filtration, most of the energy contained in it can be consumed, reducing the water flow velocity, avoiding too fast water flow, and reducing the impact on the growth of fry.

[0087] The filtration of the breeding water is achieved through the filter plate 32. The diversion disk body 33 abuts against the filter matrix 24, which can guide the water flow to flow out through the notch 34 at the edge of the diversion disk body 33 and flow downward along the inner wall of the filter matrix 24. In this way, the noise generated during the water flow can be reduced, and the energy in the water flow can be slowly released, reducing the impact force on the inside of the water supply assembly 20 during the water flow falling process and maintaining the structural stability.

[0088] In some embodiments, between the outer side wall of the filter matrix 24 and the inner side wall of the water supply matrix 21, a medicine bin is configured. The side wall of the medicine bin is provided with holes. Further, the bottom of the medicine bin is rotatably connected to the bottom of the water supply matrix, and a plurality of blade plates are arranged around the medicine bin.

[0089] In this way, reagents for adjusting the water quality of aquaculture water or drugs for preventing and treating diseases of fry can be put into the reagent bin. When the water flow passes through the reagent bin, the dissolution of the reagents or drugs can be achieved, ensuring the effect of drug application. The gap between the filter matrix 24 and the water supply matrix 21 becomes the dissolution and dilution space for the reagents. The bottom of the reagent bin is rotatably connected to the bottom of the water supply matrix 21; a plurality of vane plates are arranged around the reagent bin. In this way, the reagent bin rotates under the impact of the water flow. On the one hand, the shaking helps the internal reagents to dissolve. On the other hand, the rotation of the reagent bin can also drive the flow of the peripheral water, providing the water body flow rate, promoting the dispersion of the reagents, and balancing the water quality of the water body.

[0090] The extending direction of the mesh body of the partition filter screen 50 is set to intersect with the radial direction of the aquaculture pond 10, and the partition filter screen 50 can rotate circumferentially around the axis of the aquaculture pond 10. A plurality of partition filter screens 50 are arranged in the aquaculture pond 10, and the mesh sizes of the plurality of partition filter screens 50 are different. Thus, the aquaculture space inside the aquaculture pond 10 is divided into multiple aquaculture areas by the plurality of partition filter screens 50. The mesh size of the partition filter screen 50 is set according to the aquaculture situation of the fry, so that the fry can be driven to different aquaculture areas according to their sizes respectively, which is convenient for zoning management. The partition filter screen 50 is rotatable, so that the sizes of the respective aquaculture areas can be adjusted as needed, with strong practicability; and it also helps to collect impurities in the water body.

[0091] The partition filter screen 50 is arranged obliquely to the diameter direction of the aquaculture pond 10, that is, there is a certain angle with the water flow direction flowing from the outside to the inside, so that the partition filter screen 50 can be used to intercept and filter impurities such as feed residues and fry feces in the water body, thereby improving the cleanliness of the water body.

[0092] In addition, a plate-shaped floating body 51 is arranged on the mesh body of the partition filter screen 50, and one end of the floating body 51 is connected to the mesh body of the partition filter screen 50. Thus, the floating body 51 arranged on the mesh body can be used to prevent the middle part of the partition filter screen 50 from sinking, and keep the partition filter screen 50 in a stretched state in the water flow. In addition, the floating body 51 can rotate or float under the impact of the water flow, so that it can slap or impact the mesh body of the partition filter screen 50, which in turn helps to promote the falling of the impurities adhered to the mesh body, realizing the cleaning of the mesh body, preventing the deposition of impurities and avoiding blockage. And the setting of the floating body 51 can promote the generation of local turbulence in the water body near the mesh body, and then increase the water flow rate near the mesh body, which helps to carry the impurities falling from the mesh body towards the sewage collection assembly 40.

[0093] In other embodiments, the floating body 51 may have an irregular edge. For example, it may be set to be similar to a serrated or wavy shape. In this way, the probability of the floating body 51 hooking the mesh body can be increased, and the effect of the floating body 51 slapping and impacting the mesh body can be improved. And setting an irregular edge also helps to disrupt the nearby water flow and improve the sewage collection effect.

[0094] The arrangement of the floating body 51 also helps to simulate the natural ecological environment and is conducive to exercising the stress response of fry during the breeding process. Moreover, the arrangement of the floating body 51 also helps to drive away the fry and reduce the probability of the fry swimming between different breeding areas through the partition filter screen 50.

[0095] Embodiment 2

[0096] Figure 5 and Figure 6 Schematically shows a Sebastiscus marmoratus fry breeding device according to another embodiment of the present invention. The difference from Embodiment 1 is as follows:

[0097] A detachable habitat component 60 is provided inside the breeding pond 10. The habitat component 60 is located between the water supply component 20 and the sewage collection component 40 and includes a support frame 61 and habitat nest units 62. An installation structure for cooperating with the bottom of the support frame 61 is provided at the bottom of the breeding pond 10. In this embodiment, an annular installation rib 63 is provided at the bottom of the breeding pond 10 to cooperate with the bottom of the support frame 61.

[0098] After breeding for 33 - 40 days, the habitat component 60 can be installed at the bottom of the breeding pond 10. In this embodiment, the support frame 61 is of a square structure. A plurality of support frames 61 are radially arranged around the sewage collection cylinder 41, and a plurality of habitat nest units 62 are arranged on the side surfaces of the support frame body. In other embodiments, a plurality of support frames 61 are connected end to end to form an annular structure coaxially sleeved with the sewage collection cylinder 41. Through the arrangement of the habitat nest units 62, not only a place for the fry to inhabit and hide is provided, but also it helps to intercept impurities in the water body and avoid the turbidity of the breeding water body.

[0099] Correspondingly, a notch is provided in the middle of the partition filter screen 50 for cooperating with the habitat component 60.

[0100] At least one end of the habitat nest unit 62 is open, and the opening of the habitat nest unit 62 is arranged towards the outside of the support frame 61. The habitat nest unit 62 is processed from a canvas material with small holes, and the diameter of the small holes on the canvas material is not less than 0.5 cm. The habitat nest unit 62 has a circular cross-section. In other embodiments, the cross-section of the habitat nest unit 62 can also be set to shapes such as an ellipse or a regular hexagon. In other embodiments, one end of the habitat nest unit 62 is open and the other end is closed, and the closed end of the habitat nest unit 62 is arranged towards the inside of the support frame body; the cross-sectional diameter of the habitat nest unit 62 gradually decreases from the open end to the closed end.

[0101] The support frame 61 is configured with a horizontally arranged mesh 64. The edge of the mesh 64 is elastically connected to the frame body of the support frame 61 through a spring 65. It is advisable that the area of the mesh 64 accounts for 1 / 3 - 1 / 2 of the internal cross-sectional area of the support frame 61. In this embodiment, the area of the mesh 64 is approximately 1 / 2 of the internal cross-sectional area of the support frame 61. An aerator (not marked in the attached drawing) is configured on the mesh 64, and the output end of the aerator is arranged below the mesh 64.

[0102] The setting of the mesh 64 also provides a hiding platform for fry, which conforms to the living habits of Sebastiscus marmoratus. The setting of the aerator can not only increase the oxygen content of the aquaculture water, but also drive the mesh 64 to vibrate by the aeration airflow, and can also promote the floating of the single habitat nest 62, generating water body disturbance. On the one hand, it can promote the dissolution of the aeration gas and accelerate the increase of the water body oxygen content; on the other hand, it can prevent too much impurities from depositing on the mesh 64 and the single habitat nest 62, prevent blockage, and improve the cleanliness. The aeration airflow collides and mixes with the water flow, which helps to promote water body fluctuation and improve the sewage discharge effect.

[0103] Embodiment 3

[0104] Figures 7 to 9 Schematically shows a Sebastiscus marmoratus breeding device according to another embodiment of the present invention. The difference from Embodiment 1 is as follows:

[0105] Inside the sewage collection cylinder 41, a vertically arranged and rotatable rotating shaft 44 is configured. A plurality of stirring blades 45 are arranged around the outside of the rotating shaft 44. The rotating shaft 44 can be connected to a servo motor (not marked in the attached drawing) to achieve rotation, and the impurities entering the inside of the sewage collection cylinder 41 are promoted to rotate through the connected stirring blades 45, which helps with sewage discharge, prevents impurities from depositing and caking, and can avoid blocking the sewage discharge pipe 43, etc.

[0106] The sewage collection cylinder 41 is configured with a cleaning component 70. The cleaning component 70 includes a brush head 71, a connecting rod 72 and a moving part 73. One end of the connecting rod 72 is fixedly connected to the rotating shaft 44, the other end of the connecting rod 72 is connected to the moving part 73, the moving part 73 is movably connected to the top edge of the sewage collection cylinder 41, and one end of the brush head 71 is connected to the moving part 73, and one side of the brush head 71 abuts against the side wall of the sewage collection cylinder 41. The cleaning component 70 further includes an eccentric ring body 74. The eccentric ring body 74 is eccentrically sleeved outside the sewage collection cylinder 41, and the eccentric ring body 74 is connected to the moving part 73 through rolling connection. Specifically, a plurality of ball bearings 75 are arranged inside the moving part 73, the eccentric ring body 74 is connected to the moving part 73 through the ball bearings 75, and the moving part 73 is also connected to the outer wall of the sewage collection cylinder 41 through the ball bearings 75.

[0107] The rotating shaft 44 can drive the moving member 73 to rotate along the top edge of the sewage collection cylinder 41, thereby driving the brush head 71 to clean the outer wall of the sewage collection assembly 40, which can prevent a large amount of impurities from adhering to the surface of the sewage collection cylinder 41 and also prevent the sewage collection holes 42 on the sewage collection cylinder 41 from being blocked, ensuring the sewage collection effect.

[0108] During the process of the rotating shaft 44 driving the moving member 73 to rotate, the eccentric ring body 74 can be driven to rotate eccentrically, thereby driving the water body near the outside of the sewage collection cylinder 41 to generate a swirling flow, increasing the water flow velocity and generating noise, which helps to drive away the fry nearby and prevent the fry from straying into the inside of the sewage collection cylinder 41. On the other hand, the increase in the water flow velocity also helps the impurities to enter the inside of the sewage collection cylinder 41 through the sewage collection holes 42 and prevents the water body and impurities inside the sewage collection cylinder 41 from overflowing through the sewage collection holes 42, ensuring the sewage collection and discharge effects.

[0109] A plurality of aerators (not marked in the attached drawings) are arranged around the outside of the sewage collection cylinder 41. By providing an aeration airflow outside the sewage collection cylinder 41 through the aerators, it helps to further increase the oxygen content of the water body inside the sewage collection cylinder 41, thereby promoting the aerobic decomposition of the collected impurities and sludge by the bacteria inside the sewage collection cylinder 41, and also helps to delay the process of anaerobic fermentation, reducing the release amount of odor gases such as ammonia nitrogen in the sewage collection cylinder 41. The aeration airflow flows upward, and the impact between the bubbles and between the bubbles and the water flow will generate a local pressure difference, which helps to generate water body disturbance, promote the flow of impurities, and the bubbles can wrap the impurities and carry them upward, preventing the sewage collection holes 42 from being blocked. By setting aerators outside the sewage collection cylinder 41, the aeration airflow can be used to impact the flocculated or agglomerated impurities and sludge to prevent the sewage collection holes 42 from being blocked.

[0110] In addition, the aeration gas entering the inside of the sewage collection cylinder 41 with the water flow also helps to assist the fry that accidentally enter the inside of the sewage collection cylinder 41 to swim out. Specifically, after the aeration gas enters the sewage collection cylinder 41, the pressure change in the local water body will be caused during its fragmentation process, which will further lead to the change of the local water flow direction, helping to assist the fry to swim out.

[0111] The conventional operations in the operation steps of the present invention are well known to those skilled in the art and will not be elaborated herein.

[0112] The above-described embodiments have described the technical solutions of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, supplements, or substitutions in a similar manner within the principle scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A Sebastiscus marmoratus seedling rearing device, comprising a circular culture pond (10), characterized in that, Inside the breeding pond (10), a water supply component (20) and a sewage collection component (40) are coaxially sleeved. The water supply component (20) is arranged in contact with the inner wall of the breeding pond (10), and the sewage collection component (40) is arranged along the axis of the breeding pond (10). The water supply component (20) is of an annular structure, and the water outlet end of the water supply component (20) is communicated with the inner cavity of the breeding pond (10). The sewage collection component (40) includes a sewage collection column body (41) with a hollow interior. The sewage collection column body (41) is arranged inside the water supply component (20), and the side wall of the sewage collection column body (41) is provided with sewage collection holes (42). A detachable separation filter screen (50) is further arranged between the water supply component (20) and the sewage collection component (40). The water supply component (20) includes a water supply base body (21) that is hollow and annular inside. A filter base body (24) is coaxially sleeved inside the water supply base body (21). The filter base body (24) is hollow inside, and a first water filtering part (25) and a second water filtering part (26) are sequentially arranged up and down inside the filter base body (24). The water outlet end of the first water filtering part (25) is communicated with the water inlet end of the second water filtering part (26), and the water outlet end of the second water filtering part (26) is communicated with the inner cavity of the water supply base body (21). The first water filtering part (25) includes a hollow diversion base body (31). A filter plate (32) is horizontally arranged inside the diversion base body (31). A diversion disc body (33) is arranged at the bottom of the diversion base body (31). The edge of the diversion disc body (33) abuts against the inner wall of the filter base body (24), and a notch (34) is arranged at the edge of the diversion disc body (33). The second water filtering part (26) includes a filter column body (35). A filter element (36) is filled inside the filter column body (35), and the bottom of the filter column body (35) is communicated with the inner cavity of the water supply base body (21). A ring-shaped separation plate is arranged between the outer wall of the filter column body (35) and the inner wall of the filter base body (24). The top of the separation plate is connected to the diversion disc body (33), and a gap is arranged between the bottom end of the separation plate and the filter base body (24). A floating body (51) is arranged on the mesh body of the separation filter screen (50), and one end of the floating body (51) is connected to the mesh body of the separation filter screen (50). The extending direction of the mesh body of the separation filter screen (50) is arranged intersecting with the radial direction of the breeding pond (10), and the separation filter screen (50) can rotate circumferentially around the axis of the breeding pond (10).

2. The Sebastiscus marmoratus seedling rearing device according to claim 1, wherein A detachable habitat component (60) is arranged inside the breeding pond (10). The habitat component (60) includes a support frame (61) and habitat nest monomers (62). A plurality of the habitat nest monomers (62) are arranged on the side surface of the support frame (61). The roosting nest unit (62) has an opening at at least one end, and the opening of the roosting nest unit (62) faces the outside of the support frame (61).

3. The Sebastiscus marmoratus seedling rearing device according to claim 2, characterized in that The support frame (61) is provided with a horizontally arranged mesh (64), the edge of the mesh (64) is connected to the frame of the support frame (61), an aerator is arranged on the mesh (64), and the output end of the aerator is arranged below the mesh (64).

4. The Sebastiscus marmoratus seedling rearing device according to claim 1, characterized in that A vertical and rotatable rotating shaft (44) is arranged inside the sewage collecting cylinder (41), and a plurality of stirring blades (45) are arranged around the outside of the rotating shaft (44); the sewage collecting cylinder (41) is provided with a cleaning assembly (70), the cleaning assembly (70) includes a brush head (71), a connecting rod (72) and a moving member (73), one end of the connecting rod (72) is fixedly connected to the rotating shaft (44), the other end of the connecting rod (72) is connected to the moving member (73), the moving member (73) is movably connected to the top edge of the sewage collecting cylinder (41), and one end of the brush head (71) is connected to the moving member (73), and one side of the brush head (71) abuts against the side wall of the sewage collecting cylinder (41).

5. The Sebastiscus marmoratus seedling rearing device according to claim 4, characterized in that The cleaning assembly (70) further includes an eccentric ring body (74), the eccentric ring body (74) is eccentrically sleeved outside the sewage collecting cylinder (41), and the eccentric ring body (74) is in rolling connection with the moving member (73).

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