Saline-alkali soil large yellow croaker ecological breeding equipment

Abstract

The utility model discloses saline-alkali soil large yellow croaker ecological breeding equipment which comprises a concrete breeding pond and a geomembrane arranged on the inner wall of the concrete breeding pond, the geomembrane is tightly attached to the bottom end and the peripheral inner wall of the concrete breeding pond, and a frame type bottom frame is arranged at the bottom end of the geomembrane. An aeration oxygenation mechanism is fixed to the top end of the frame type bottom frame, and a push type cleaning device is connected to the top end of the concrete culture pond and the interior of the geomembrane. The concrete culture pond has the beneficial effects that the novel push type cleaning device is additionally arranged in the concrete culture pond, the push type cleaning device moves left and right, mud attached to the aeration oxygenation mechanism can be cleaned away through lengthened cleaning soft bristles densely distributed at the bottom end of the U-shaped cleaning support, and the aeration oxygenation mechanism can be effectively cleaned through the lengthened cleaning soft bristles; the device does not go deep into a water body to interfere or damage normal activities of the large yellow croaker, so that stress reaction possibly brought to the large yellow croaker due to cleaning operation is avoided, and healthy growth of the large yellow croaker is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture, and in particular to an ecological aquaculture equipment for large yellow croaker in saline-alkali land. Background Technology

[0002] With the booming development of aquaculture, saline-alkali land large yellow croaker farming has gradually emerged as a new industry. Ecological farming of saline-alkali land large yellow croaker is of great significance for making full use of saline-alkali land resources and expanding aquaculture space. In the process of farming saline-alkali land large yellow croaker, the application of concrete farming ponds combined with geomembranes and aeration and oxygenation equipment creates a relatively suitable living environment for large yellow croaker. However, the existing farming equipment has exposed a series of problems in the long-term operation.

[0003] As the aquaculture period continues, a large amount of dirt, sludge, and other impurities accumulate in the water. These impurities gradually settle under gravity and adhere to the bottom of the pond. The accumulation of impurities at the bottom of the pond has many negative impacts on the entire aquaculture system. First, it seriously affects the aeration and oxygenation effect of the aeration and oxygenation system. As a key device for ensuring the dissolved oxygen content of the aquaculture water, the normal operation of the aeration and oxygenation system is crucial for the survival and growth of large yellow croaker. However, the impurities that settle at the bottom of the pond will cover the surface of the aeration pipes, air outlets, and aeration heads of the aeration and oxygenation system. This hinders the normal diffusion of air and the full contact between water and air, resulting in a significant reduction in aeration and oxygenation efficiency. Consequently, the dissolved oxygen content in the aquaculture water is insufficient to meet the growth requirements of large yellow croaker. Furthermore, the accumulation of these impurities can also adversely affect the health of large yellow croaker. Dirt and sludge may contain various harmful microorganisms, pathogens, and harmful substances, which can breed and multiply at the bottom of the pond, polluting the aquaculture water, increasing the risk of disease in large yellow croaker, affecting their growth rate and quality, and may even lead to large-scale disease outbreaks, causing huge economic losses to farmers.

[0004] In summary, existing ecological aquaculture equipment for large yellow croaker in saline-alkali land has significant shortcomings in addressing the problem of impurity precipitation during long-term aquaculture. There is an urgent need for an innovative technology or equipment that can effectively solve the above problems, so as to improve the efficiency and quality of large yellow croaker aquaculture in saline-alkali land and promote the sustainable development of this industry. Utility Model Content

[0005] The main purpose of this invention is to propose an ecological aquaculture equipment for large yellow croaker in saline-alkali land, which aims to solve the problem that as the aquaculture time increases, a large amount of dirt, sludge and other impurities will accumulate in the water. These impurities will gradually settle under the action of gravity. A large amount of impurities attached to the bottom of the pond will cause a significant reduction in the aeration efficiency of the aeration and oxygenation mechanism at the bottom of the pond. At the same time, the accumulation of these impurities will also have an adverse effect on the health of the large yellow croaker.

[0006] To address the aforementioned problems, this utility model proposes an ecological aquaculture device for large yellow croaker in saline-alkali land, comprising a concrete aquaculture pond and a geomembrane installed on the inner wall of the concrete aquaculture pond. The geomembrane is tightly fitted to the bottom and the inner walls of the concrete aquaculture pond. A frame-type base is provided at the bottom of the geomembrane, and an aeration and oxygenation mechanism is fixed at the top of the frame-type base. A push-type cleaning device is connected between the top of the concrete aquaculture pond and the inside of the geomembrane, and the bottom of the push-type cleaning device can contact the aeration and oxygenation mechanism when it slides left and right.

[0007] In one embodiment, the push-type sweeping device includes a reinforcing connecting rod, a U-shaped sweeping bracket, and extended sweeping bristles. The U-shaped sweeping bracket is inserted into the geomembrane, with the U-shaped opening of the U-shaped sweeping bracket facing upwards. The outer walls of the front and rear ends of the U-shaped sweeping bracket are respectively close to the inner walls of the front and rear ends of the geomembrane. The outer wall of the bottom end of the U-shaped sweeping bracket is densely covered with extended sweeping bristles, and the inner walls of the front and rear ends of the top of the U-shaped sweeping bracket are connected to the reinforcing connecting rod.

[0008] In one embodiment, the push-type cleaning device further includes a supporting top plate A and a supporting top plate B. The supporting top plate A is welded to the top of the front end of the U-shaped cleaning bracket, and the supporting top plate B is welded to the top of the rear end of the U-shaped cleaning bracket. The supporting top plate A and the supporting top plate B are respectively located on the upper side of the top outer wall of the front and rear ends of the concrete aquaculture pool.

[0009] In one embodiment, the push-type cleaning device further includes a U-shaped roller frame and displacement rollers. The U-shaped roller frames are fixed on both the left and right sides of the bottom center of the supporting top plate A and the supporting top plate B. The U-shaped openings of the multiple U-shaped roller frames all face downwards. Each of the multiple U-shaped roller frames is provided with a displacement roller. The bottom ends of the multiple displacement rollers are respectively placed on the top outer walls of the front and rear ends of the concrete aquaculture pool.

[0010] In one embodiment, the displacement roller is rotatably connected to the U-shaped roller frame via a rotating shaft, and the displacement roller can roll left and right on the top outer wall of the front and rear ends of the concrete aquaculture pool.

[0011] In one embodiment, the aeration and oxygenation mechanism includes a Z-shaped aeration delivery pipe, a branch pipe fixing frame, and aeration branch pipes. The Z-shaped aeration delivery pipe is located on the upper side of the center of the frame base and is arranged laterally on the upper side of the frame base. Multiple aeration branch pipes are equidistantly arranged at both ends of the bottom horizontal section of the Z-shaped aeration delivery pipe. The multiple aeration branch pipes are fixedly connected to the frame base through multiple branch pipe fixing frames.

[0012] In one embodiment, the aeration and oxygenation mechanism further includes an air outlet head and an aeration and oxygenation head. Multiple air outlet heads are equidistantly arranged at the top ends of the multiple aeration branch pipes. The air outlets of the multiple air outlet heads are all vertically upward, and an aeration and oxygenation head is fixed to the top end of each of the multiple air outlet heads.

[0013] In one embodiment, the aeration and oxygenation mechanism further includes an aeration pump box. The aeration pump box is connected to the right end of the top transverse section of the Z-shaped aeration conveying pipe, and the aeration pump box is located on the right side of the top right end of the concrete aquaculture pond. An air inlet is provided at the top right end of the aeration pump box, and an aeration and oxygenation pump is provided inside the aeration pump box. The air outlet of the aeration and oxygenation pump is connected to the inside of the Z-shaped aeration conveying pipe.

[0014] In one embodiment, fly ash and silica fume are added to the concrete aquaculture tank to increase its alkali resistance. The frame base is hollow inside and is made entirely of aluminum alloy.

[0015] In one embodiment, during the left and right movement of the U-shaped cleaning bracket, the extended cleaning bristles densely distributed at the bottom of the U-shaped cleaning bracket can fully contact the aeration branch pipe, the air outlet pipe head, and the aeration oxygenation head.

[0016] Beneficial Effects: The technical solution of this utility model adds a novel push-type cleaning device to the concrete aquaculture pond. This push-type cleaning device moves left and right, using the extended cleaning bristles densely distributed at the bottom of the U-shaped cleaning bracket to clean away the mud and grime adhering to the aeration and oxygenation mechanism. Furthermore, the push-type cleaning device will not harm the farmed large yellow croaker during its left and right movement. The device's ingenious structural design, with its U-shaped cleaning bracket, through the cooperation of supporting top plate A, supporting top plate B, and displacement rollers, allows for stable left and right sliding on the top of the concrete aquaculture pond, ensuring the continuity and efficiency of the cleaning work. During the cleaning process, the flexible rolling of the displacement rollers reduces the resistance when the cleaning device moves, making operation easier and more convenient, and reducing labor costs. The design of the push-type cleaning device fully considers the protection of the farmed fish. The U-shaped cleaning bracket is located at the top of the aquaculture pond, and although the extended cleaning bristles effectively clean the aeration and oxygenation mechanism, they do not penetrate into the water to interfere with or harm the normal activities of the large yellow croaker, avoiding potential stress reactions to the fish caused by cleaning operations and ensuring the healthy growth of the large yellow croaker. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a frontal three-dimensional structural diagram of an ecological aquaculture equipment for large yellow croaker in saline-alkali land according to this utility model;

[0019] Figure 2This is a top view schematic diagram of the ecological aquaculture equipment for large yellow croaker in saline-alkali land according to this utility model.

[0020] Figure 3 This is a schematic diagram of the individual three-dimensional structure of the aeration and oxygenation mechanism of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the push-type sweeping device of this utility model;

[0022] Figure 5 This is a schematic diagram of the right-side plan view of the push-type sweeping device of this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Concrete aquaculture pond; 2. Push-type cleaning device; 3. Geomembrane; 4. Frame base; 5. Aeration and oxygenation mechanism; 6. Z-shaped aeration delivery pipe; 7. Branch pipe fixing frame; 8. Aeration branch pipe; 9. Air outlet head; 10. Aeration and oxygenation head; 11. Aeration pump box; 12. U-shaped roller frame; 13. Supporting top plate A; 14. Reinforcing connecting rod; 15. U-shaped cleaning bracket; 16. Extended cleaning bristles; 17. Supporting top plate B; 18. Displacement roller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model provides, for example Figure 1-5 The diagram illustrates an ecological aquaculture system for large yellow croaker in saline-alkali land. It includes a concrete aquaculture pond 1 and a geomembrane 3 installed on the inner wall of the concrete aquaculture pond 1. The geomembrane 3 is tightly fitted to the bottom and surrounding inner walls of the concrete aquaculture pond 1, serving a dual function of isolation and protection. On one hand, the geomembrane 3 prevents water from seeping into the surrounding saline-alkali land, avoiding water waste and impact on the surrounding soil environment. On the other hand, it prevents harmful substances from the saline-alkali land from seeping into the aquaculture pond, ensuring the quality of the aquaculture water and providing a relatively pure living environment for the large yellow croaker. A frame-type base 4 is installed at the bottom, and an aeration and oxygenation mechanism 5 is fixed at the top of the frame-type base 4. Fly ash and silica fume are also added to the concrete aquaculture pond 1 to increase its alkali resistance. The concrete aquaculture pond 1 is the basic framework of the entire aquaculture system, providing a fixed living space for the large yellow croaker. The addition of fly ash and silica fume to the concrete aquaculture pond 1 can effectively enhance the alkali resistance of the concrete by utilizing their chemical reaction with the concrete. This is because the active ingredients in fly ash and silica fume can react with alkaline substances in the saline-alkali environment, reduce the alkalinity concentration inside the concrete, thereby improving the durability and stability of the concrete, preventing alkaline substances from eroding the concrete structure, and extending the service life of the aquaculture pond.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the aeration and oxygenation mechanism 5 includes a Z-shaped aeration delivery pipe 6, branch pipe fixing brackets 7, and aeration branch pipes 8. The Z-shaped aeration delivery pipe 6 is located on the upper side of the center of the frame base 4, and is arranged horizontally on the upper side of the frame base 4. Multiple aeration branch pipes 8 are equidistantly arranged at both ends of the horizontal section at the bottom of the Z-shaped aeration delivery pipe 6. The multiple aeration branch pipes 8 are fixedly connected to the frame base 4 by multiple branch pipe fixing brackets 7. The aeration and oxygenation mechanism 5 also includes an air outlet head 9 and an aeration head 10, and multiple aeration branch pipes. Multiple air outlets 9 are evenly spaced at the top of the Z-shaped aeration pipe 6. The air outlets of the multiple air outlets 9 are all vertically upward. An aeration head 10 is fixed to the top of each of the multiple air outlets 9. The aeration mechanism 5 also includes an aeration pump box 11. The right end of the transverse section at the top of the Z-shaped aeration delivery pipe 6 is connected to the aeration pump box 11, and the aeration pump box 11 is located on the right side of the top right end of the concrete aquaculture pond 1. An air inlet is provided at the top right end of the aeration pump box 11. An aeration pump is installed inside the aeration pump box 11, and the air outlet of the aeration pump is connected to the Z-shaped aeration delivery pipe 6. The aeration delivery pipe 6 is internally connected, and the aeration and oxygenation mechanism 5 is a key part to ensure the survival of the large yellow croaker. The aeration and oxygenation pump in the aeration pump box 11 draws in air through the air inlet. Under the action of the aeration and oxygenation pump, the air enters the Z-shaped aeration delivery pipe 6. The Z-shaped aeration delivery pipe 6 is horizontally set on the upper side of the center of the frame-type base 4. Its unique shape design helps the air to flow stably and be evenly distributed in the pipe. Multiple aeration branch pipes 8 are equidistantly set at both ends of the horizontal section at the bottom of the Z-shaped aeration delivery pipe 6. They are connected to the frame through the branch pipe fixing bracket 7. The fixed connection of the base frame 4 ensures the stability of the aeration pipe 8. Air flows into the aeration pipe 8 from the Z-shaped aeration delivery pipe 6, and then is discharged upward through the air outlet head 9, which is evenly spaced at the top of the aeration pipe 8. The air outlet of the air outlet head 9 is vertically upward, and the aeration head 10 fixed at the top can disperse the air into the aquaculture pond in a suitable way, so that the air and water can fully contact each other and increase the dissolved oxygen content in the water. This design ensures that the oxygen distribution in the aquaculture pond is relatively uniform, meeting the oxygen requirements of the large yellow croaker for growth.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, the frame base 4 is hollow inside and made entirely of aluminum alloy. Aluminum alloy not only has good strength and corrosion resistance, providing stable support for the aeration and oxygenation mechanism 5, but its lightweight nature also facilitates equipment installation and maintenance. Simultaneously, the hollow structure reduces the overall weight and lowers the pressure on the bottom of the aquaculture pond. This saline-alkali land large yellow croaker ecological aquaculture equipment aims to create a suitable living and growing space for large yellow croaker in saline-alkali environments. Its various structural components work together to ensure the stability of the aquaculture environment and the healthy growth of the fish. The various parts of the entire aquaculture equipment cooperate to form a complete ecological aquaculture system. The concrete aquaculture pond 1 and geomembrane 3 provide stable physical space and water quality protection, while the aeration and oxygenation mechanism 5 maintains the dissolved oxygen level in the water, creating basic conditions for the survival and growth of large yellow croaker. This collaborative approach allows for the simulation of an ecological environment suitable for large yellow croaker growth even in the special environment of saline-alkali land, effectively improving the success rate and aquaculture efficiency of large yellow croaker farming in saline-alkali land.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown, a push-type cleaning device 2 is connected to the top of the concrete aquaculture pond 1 and the interior of the geomembrane 3. When the push-type cleaning device 2 slides left and right, its bottom end can contact the aeration and oxygenation mechanism 5. The push-type cleaning device 2 includes a reinforcing connecting rod 14, a U-shaped cleaning bracket 15, and extended cleaning bristles 16. The U-shaped cleaning bracket 15 is inserted into the geomembrane 3, with the U-shaped opening of the U-shaped cleaning bracket 15 facing upwards. The outer walls of the front and rear ends of the U-shaped cleaning bracket 15 are close to the inner walls of the front and rear ends of the geomembrane 3, respectively. The outer wall of the bottom end of the U-shaped cleaning bracket 15 is densely covered with extended cleaning bristles 16. The inner walls of the front and rear ends of the top of the U-shaped cleaning bracket 15 are connected to the reinforcing connecting rod 14. The U-shaped cleaning bracket 15 serves as... The main frame of the push-type cleaning device 2 has its U-shaped opening facing upwards and is inserted into the geomembrane 3. The outer walls at both ends are close to the inner walls at both ends of the geomembrane 3. This design allows the U-shaped cleaning bracket 15 to obtain stable support on the geomembrane 3 and to be accurately positioned at a specific location in the aquaculture pond. On the other hand, the U-shaped structure can accommodate some components of the aeration and oxygenation mechanism 5, providing a spatial foundation for subsequent cleaning work. The reinforcing connecting rods 14 connected to the inner walls at both ends of the top of the U-shaped cleaning bracket 15 enhance the strength and stability of the overall structure of the U-shaped cleaning bracket 15, ensuring that it will not be deformed or damaged by external forces during the cleaning process, thus ensuring the smooth progress of the cleaning work.

[0033] like Figure 1 , Figure 4 and Figure 5As shown, the push-type cleaning device 2 also includes a supporting top plate A13 and a supporting top plate B17. Supporting top plate A13 is welded to the top of the front end of the U-shaped cleaning bracket 15, and supporting top plate B17 is welded to the top of the rear end of the U-shaped cleaning bracket 15. Supporting top plate A13 and supporting top plate B17 are located on the upper side of the top outer wall at the front and rear ends of the concrete aquaculture tank 1, respectively. Supporting top plate A13 and supporting top plate B17 provide stable support points for the entire push-type cleaning device 2. The push-type cleaning device 2 also includes a U-shaped roller frame 12 and displacement rollers 18. The bottom of supporting top plate A13 and supporting top plate B17... U-shaped roller frames 12 are fixed on both the left and right sides of the core, and the U-shaped openings of the multiple U-shaped roller frames 12 all face downwards. Each of the multiple U-shaped roller frames 12 is equipped with a displacement roller 18. The bottom ends of the multiple displacement rollers 18 are respectively placed on the top outer wall of the front and rear ends of the concrete aquaculture tank 1. This structure allows the push-type cleaning device 2 to roll left and right on the top outer wall of the concrete aquaculture tank 1 through the displacement rollers 18, realizing the sliding movement of the device. Through manual driving, the U-shaped cleaning bracket 15 can be easily driven to reciprocate along the top of the aquaculture tank, providing a power source for the cleaning operation.

[0034] like Figure 1 , Figure 4 and Figure 5 As shown, the displacement roller 18 is rotatably connected to the U-shaped roller frame 12 via a rotating shaft. The displacement roller 18 can roll left and right on the top outer wall of both ends of the concrete aquaculture tank 1. During the left and right movement of the U-shaped cleaning bracket 15, the extended cleaning bristles 16 densely distributed at the bottom of the U-shaped cleaning bracket 15 can fully contact the aeration branch pipe 8, the air outlet head 9, and the aeration head 10. When the U-shaped cleaning bracket 15 moves left and right under the drive of the displacement roller 18, the extended cleaning bristles 16 densely distributed on the bottom outer wall play a cleaning role. These extended cleaning bristles 16 can fully contact the aeration branch pipe 8 in the aeration and oxygenation mechanism 5 during the movement. The air outlet head 9 and the aeration head 10 come into contact. Due to the flexibility and conformability of the soft bristles, they can effectively clean the mud, dirt, and impurities attached to the surface of these components without damaging them. During the cleaning process, the friction between the soft bristles and the surface of the components can peel the mud off the surface of the components. As the U-shaped cleaning bracket 15 moves, the mud will be carried away from the aeration mechanism 5 and eventually fall to the bottom of the aquaculture pond or be carried away by the water flow, thereby keeping the aeration mechanism 5 clean, ensuring that its normal aeration and oxygenation function is not affected, maintaining a good dissolved oxygen environment in the aquaculture water, and ensuring the healthy growth of the large yellow croaker.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An ecological aquaculture device for large yellow croaker in saline-alkali land, comprising a concrete aquaculture pond (1) and a geomembrane (3) installed on the inner wall of the concrete aquaculture pond (1), wherein the geomembrane (3) is tightly attached to the bottom end and the inner walls of the concrete aquaculture pond (1), and a frame-type base frame (4) is provided at the bottom end of the geomembrane (3), and an aeration and oxygenation mechanism (5) is fixed at the top end of the frame-type base frame (4), characterized in that, The top of the concrete aquaculture pond (1) is connected to the inside of the geomembrane (3) by a push-type cleaning device (2), and the bottom of the push-type cleaning device (2) can contact the aeration and oxygenation mechanism (5) when it slides left and right.

2. The saline-alkali land large yellow croaker ecological aquaculture equipment as described in claim 1, characterized in that, The push-type sweeping device (2) includes a reinforcing connecting rod (14), a U-shaped sweeping bracket (15), and extended sweeping bristles (16). The U-shaped sweeping bracket (15) is inserted into the geomembrane (3), and the U-shaped opening of the U-shaped sweeping bracket (15) faces upward. The outer walls of the front and rear ends of the U-shaped sweeping bracket (15) are close to the inner walls of the front and rear ends of the geomembrane (3), respectively. The outer wall of the bottom end of the U-shaped sweeping bracket (15) is densely covered with extended sweeping bristles (16), and the inner walls of the front and rear ends of the top of the U-shaped sweeping bracket (15) are connected to the reinforcing connecting rod (14).

3. The saline-alkali land large yellow croaker ecological aquaculture equipment as described in claim 2, characterized in that, The push-type cleaning device (2) also includes a supporting top plate A (13) and a supporting top plate B (17). The supporting top plate A (13) is welded to the top of the front end of the U-shaped cleaning bracket (15), and the supporting top plate B (17) is welded to the top of the rear end of the U-shaped cleaning bracket (15). The supporting top plate A (13) and the supporting top plate B (17) are located on the upper side of the top outer wall of the front and rear ends of the concrete aquaculture pool (1), respectively.

4. The ecological aquaculture equipment for large yellow croaker in saline-alkali land as described in claim 3, characterized in that, The push-type cleaning device (2) also includes a U-shaped roller frame (12) and a displacement roller (18). The bottom center of the support plate A (13) and the support plate B (17) are fixed with U-shaped roller frames (12) on both the left and right sides. The U-shaped openings of the multiple U-shaped roller frames (12) are all facing downwards. The multiple U-shaped roller frames (12) are each provided with a displacement roller (18). The bottom ends of the multiple displacement rollers (18) are respectively placed on the top outer walls of the front and rear ends of the concrete aquaculture pool (1).

5. The saline-alkali land large yellow croaker ecological aquaculture equipment as described in claim 4, characterized in that, The displacement roller (18) is rotatably connected to the U-shaped roller frame (12) via a rotating shaft, and the displacement roller (18) can roll left and right on the top outer wall of the front and rear ends of the concrete aquaculture pool (1).

6. The ecological aquaculture equipment for large yellow croaker in saline-alkali land as described in claim 5, characterized in that, The aeration and oxygenation mechanism (5) includes a Z-shaped aeration conveying pipe (6), a branch pipe fixing frame (7), and aeration branch pipes (8). The Z-shaped aeration conveying pipe (6) is located on the upper side of the center of the frame base (4), and the Z-shaped aeration conveying pipe (6) is arranged horizontally on the upper side of the frame base (4). Multiple aeration branch pipes (8) are equidistantly arranged at both ends of the horizontal section at the bottom of the Z-shaped aeration conveying pipe (6). The multiple aeration branch pipes (8) are fixedly connected to the frame base (4) through multiple branch pipe fixing frames (7).

7. The saline-alkali land large yellow croaker ecological aquaculture equipment as described in claim 6, characterized in that, The aeration and oxygenation mechanism (5) further includes an air outlet head (9) and an aeration and oxygenation head (10). Multiple air outlet heads (9) are equidistantly arranged at the top of multiple aeration pipes (8). The air outlets of multiple air outlet heads (9) are all vertically upward. An aeration and oxygenation head (10) is fixed at the top of multiple air outlet heads (9).

8. The ecological aquaculture equipment for large yellow croaker in saline-alkali land as described in claim 7, characterized in that, The aeration and oxygenation mechanism (5) also includes an aeration pump box (11). The right end of the top horizontal section of the Z-shaped aeration conveying pipe (6) is connected to the aeration pump box (11), and the aeration pump box (11) is located on the right side of the top right end of the concrete aquaculture pond (1). An air inlet is provided at the top right end of the aeration pump box (11). An aeration and oxygenation pump is provided inside the aeration pump box (11), and the air outlet of the aeration and oxygenation pump is connected to the inside of the Z-shaped aeration conveying pipe (6).

9. The ecological aquaculture equipment for large yellow croaker in saline-alkali land as described in claim 1, characterized in that, The concrete aquaculture pond (1) is also filled with fly ash and silica fume to increase its alkali resistance. The frame base (4) is hollow inside and is made of aluminum alloy.

10. The saline-alkali land large yellow croaker ecological aquaculture equipment as described in any one of claims 2 or 6, characterized in that, During the left and right movement of the U-shaped cleaning bracket (15), the extended cleaning bristles (16) densely distributed at the bottom of the U-shaped cleaning bracket (15) can fully contact the aeration branch pipe (8), the air outlet pipe head (9) and the aeration oxygenation head (10).

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