A shrimp pond bottom sewage discharge system

Abstract

The utility model provides a kind of shrimp pond bottom sewage system, it is related to aquaculture equipment technical field, including bucket shell and rotary filter assembly, its inside is provided with basin, and basin is enclosed to form filter chamber, and basin is enclosed with bucket shell to form backwashing chamber;Rotary filter assembly includes rotatably being arranged in the drum of the basin, and the circumferential surface of the drum is equipped with mesh hole;Wherein, the filter chamber is communicated with backwashing chamber by the mesh hole;When sewage enters filter chamber, it is guided to backwashing chamber discharge by the mesh hole;When mesh hole is blocked, drive the drum rotates predetermined angle, so that blocked mesh hole turns into backwashing chamber and carries out hydraulic self-cleaning.The utility model has the beneficial effect that the isolation effect of drum to fish and shrimp, the rotation function of drum can also realize hydraulic self-cleaning, can effectively solve mesh hole blockage problem, without frequent cleaning by hand, reduce maintenance cost and manpower investment, improve sewage efficiency.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, and in particular to a bottom sewage discharge system for shrimp ponds. Background Technology

[0002] In shrimp farming, maintaining good water quality in shrimp ponds is crucial for ensuring the healthy growth of shrimp and maximizing farming efficiency. During the farming process, shrimp produce a large amount of feces, and some feed is also left over. If this feces and uneaten feed are not removed from the pond in a timely manner, they will accumulate and decompose, producing harmful substances such as ammonia nitrogen and nitrite, leading to water quality deterioration. Excessive levels of ammonia nitrogen and nitrite can severely affect the respiratory function of shrimp, reduce their immunity, and significantly increase the risk of disease. In addition, algae in shrimp ponds provide oxygen to the water through photosynthesis, playing an important role in maintaining the ecological balance of the pond. However, algae have a certain life cycle. If dead algae are not cleaned up in time, they will decompose at the bottom of the pond, consuming large amounts of oxygen in the water, leading to hypoxia, and producing toxic gases such as hydrogen sulfide, posing a serious threat to the survival of shrimp. Moreover, polluted water and accumulated waste create a suitable living environment for pathogens such as bacteria, viruses, and parasites, easily triggering the spread and outbreak of diseases.

[0003] Therefore, wastewater discharge from shrimp ponds is a necessary measure to ensure the healthy growth of shrimp and maintain a good aquaculture environment. Maintaining a clean and stable water quality environment helps shrimp maintain a good physiological state, enhances their immunity and resistance, and enables them to better resist disease invasion. Good water quality and a clean environment can meet the growth needs of shrimp, ensuring that they grow and develop normally under suitable conditions. Wastewater discharge operations can effectively maintain the stability of water indicators such as dissolved oxygen, pH, and temperature, providing shrimp with a healthy and comfortable living space.

[0004] Currently, the most common method for draining shrimp ponds is the extraction method. This method is inefficient and inconvenient to operate. Furthermore, during the drainage process, excrement, feed, and condensed impurities are easily extracted along with the live shrimp, increasing farming costs and potentially causing shrimp mortality. To address these issues, patent publication number CN108902005A discloses a shrimp pond drainage device. This device includes a drainage chamber, a drive motor, a stirring roller, a filter box, and a drainage pipe. Its working principle involves setting up a drainage chamber at the bottom of the shrimp pond, through which shrimp excrement, feed, and condensed impurities are discharged, eliminating the need for manual retrieval, reducing the workload of workers, and improving efficiency. The device further separates excrement, feed, and condensed impurities from the live shrimp by fixing a filter box to the top of the drainage chamber and evenly distributing mesh filter plates inside the filter box, ensuring the survival of the live shrimp.

[0005] However, in practical applications, as the device operates for longer periods, a large amount of impurities accumulate on the mesh filter plate. This not only affects the filtration efficiency of the filter box but may even cause blockages. The patent does not offer an effective solution to this technical problem. Therefore, existing shrimp pond wastewater discharge technologies still have room for improvement. Utility Model Content

[0006] This invention overcomes the shortcomings of the prior art and provides a bottom sewage discharge system for shrimp ponds, which effectively solves the problem of mesh clogging, eliminates the need for frequent manual cleaning, reduces maintenance costs and manpower input, and improves sewage discharge efficiency.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] A bottom sewage discharge system for shrimp ponds includes a barrel-shaped shell and a rotary filter assembly. The shell contains a basin, which encloses a filter chamber. The basin and the barrel-shaped shell together form a backwash chamber. The rotary filter assembly includes a roller rotatably mounted on the basin, with mesh openings on its circumferential surface. The filter chamber and the backwash chamber are in fluid communication through the mesh openings.

[0009] When wastewater enters the filtration chamber, it is guided through the mesh to the backwash chamber for discharge; when the mesh is clogged, the roller is driven to rotate at a predetermined angle, causing the clogged mesh to enter the backwash chamber for hydraulic self-cleaning.

[0010] Furthermore, the rotary filter assembly also includes a drive shaft, which is coaxially fixed to the drum; the drive shaft is connected to a corner unit, the corner unit is connected to one end of a transmission rod, and the other end of the transmission rod is connected to a motor.

[0011] Furthermore, it also includes a load-bearing bracket for fixing to the basin body, with the roller rotatably mounted on the load-bearing bracket, and an opening provided on the basin body, with the roller correspondingly located at the opening; the corner bracket is connected and fixed to the load-bearing bracket.

[0012] Furthermore, the surface of the roller is provided with several reinforcing ribs at equal intervals along the axial direction, and the included angle between adjacent reinforcing ribs is 15°~30°.

[0013] Furthermore, an isolation net is provided on the barrel-shaped shell.

[0014] Furthermore, the filter chamber is equipped with a water pumping device, the drain outlet of which is connected to a water outlet pipe extending outside the isolation net.

[0015] Furthermore, it also includes a hollow tube, which is coaxially sleeved outside the transmission rod; a support plate is provided at the upper end of the hollow tube, the motor is connected to the support plate, and the lower end of the hollow tube is connected to the isolation net.

[0016] Furthermore, the lower end of the barrel-shaped shell is an inverted frustum that slopes inward.

[0017] Furthermore, the inverted frustum has an inclination angle of 30° to 60°.

[0018] Furthermore, a sealing strip is provided inside the load-bearing bracket.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The roller of this invention isolates fish and shrimp, preventing them from being drawn out of the shrimp pond during the sewage discharge process. In addition, the roller is rotatable, and its rotation function enables hydraulic self-cleaning, which can effectively solve the problem of mesh clogging. It eliminates the need for frequent manual cleaning, reduces maintenance costs and manpower input, and improves sewage discharge efficiency. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a 3D diagram of the sewage system at the bottom of the shrimp pond;

[0023] Figure 2 This is a schematic diagram of the internal structure of the sewage discharge system at the bottom of the shrimp pond;

[0024] Figure 3 This is a cross-sectional view of the barrel-shaped shell section, with the pumping device removed from the drawing;

[0025] Figure 4 This is a schematic diagram of the internal structure of the barrel-shaped shell;

[0026] Figure 5 This is an exploded view of the sewage system at the bottom of the shrimp pond, with the hollow pipes removed.

[0027] Figure 6 This is a structural diagram of the roller section.

[0028] In the diagram: 1. Barrel-shaped shell; 101. Filter chamber; 2. Basin; 201. Backwash chamber; 202. Opening; 3. Drum; 301. Mesh; 302. Reinforcing rib; 4. Drive shaft; 5. Corner; 6. Transmission rod; 7. Motor; 8. Load-bearing bracket; 9. Isolation net; 10. Pumping device; 11. Water outlet pipe; 12. Hollow pipe; 13. Support plate. Detailed Implementation

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] like Figures 1 to 6 This utility model claims protection for a bottom sewage discharge system for shrimp ponds, including a barrel-shaped shell 1 and a rotary filter assembly. The barrel-shaped shell 1 is sunk to the bottom of the shrimp pond or can be directly inserted into the silt at the bottom of the shrimp pond. Specifically, the lower end of the barrel-shaped shell 1 is an inverted frustum that slopes inward, with an inclination angle of 30° to 60°. In this embodiment, preferably, the inclination angle of the frustum is 35°. This inverted frustum with an inclination angle helps to fix the barrel-shaped shell 1 in the silt at the bottom of the shrimp pond.

[0031] The barrel-shaped shell 1 has a basin 2 inside, which encloses the filter chamber 101. The basin 2 and the barrel-shaped shell 1 enclose the backwash chamber 201. The rotary filter assembly includes a roller 3 rotatably disposed on the basin 2. The circumferential surface of the roller 3 is provided with a mesh 301. The filter chamber 101 and the backwash chamber 201 are fluidly connected through the mesh 301. The fluid referred to here is mainly shrimp pond water.

[0032] When wastewater enters the filter chamber 101, it is guided through the mesh 301 to the backwash chamber 201 for discharge; therefore, the roller 3 has the function of isolating fish and shrimp, and by setting the roller 3, fish and shrimp that have entered the filter chamber 101 can be prevented from falling into the backwash chamber 201.

[0033] In this embodiment, the roller 3 is rotatable. Specifically, the rotary filter assembly also includes a drive shaft 4, which is coaxially fixed to the roller 3. The drive shaft 4 is connected to a corner unit 5, which is connected to one end of a transmission rod 6, and the other end of the transmission rod 6 is connected to a motor 7. Therefore, the motor 7 drives the transmission rod 6 to rotate, and the transmission rod 6 controls the rotation of the drive shaft 4 through the corner unit 5, thereby controlling the rotation of the roller 3. The corner unit 5 is prior art, specifically disclosed in a novel belt lifting mechanism in patent publication number CN220907034U, and is therefore not described in detail here.

[0034] It also includes a load-bearing bracket 8 for fixing on the basin 2, the roller 3 is rotatably mounted on the load-bearing bracket 8, the basin 2 is provided with an opening 202, and the roller 3 is located at the opening 202; the corner bracket 5 is connected and fixed on the load-bearing bracket 8.

[0035] Furthermore, a barrier net 9 is provided on the barrel-shaped shell 1. The barrier net 9 can be fixed to the shell by means of bolts or screws. The barrier net 9 helps to prevent larger fish, shrimp or debris from entering the barrel-shaped shell 1.

[0036] The filter chamber 101 is equipped with a water pumping device 10. The drain outlet of the water pumping device 10 is connected to a water outlet pipe 11 extending to the outside of the isolation net 9. The water outlet pipe 11 is used to connect to an external discharge pipe. After the sewage enters the filter chamber 101 through the mesh 301 of the roller 3, it is discharged to the outside under the action of the water pumping device 10.

[0037] It also includes a hollow tube 12, which is coaxially sleeved on the outside of the transmission rod 6; a support plate 13 is provided at the upper end of the hollow tube 12, the motor 7 is connected to the support plate 13, and the lower end of the hollow tube 12 is connected to the isolation net 9. As can be seen from the above description, the isolation net 9 is fixedly connected to the barrel-shaped shell 1, so the entire barrel-shaped shell 1 can be pulled up or lowered to the bottom of the shrimp pond by holding the hollow tube 12; the hollow tube 12 extends upward to the horizontal level above the shrimp pond, that is, the motor 7 is exposed above the water surface and will not be submerged.

[0038] During the process of removing sewage, smaller impurities can still pass through the isolation net 9 and enter the filter chamber 101, adhering to the surface of the roller 3 exposed in the filter chamber 101 and causing blockage of the mesh 301. At this time, the motor 7 drives the roller 3 to rotate at a predetermined angle, causing the surface of the roller 3 originally exposed in the filter chamber 101 to rotate to one side of the backwash chamber 201, that is, causing the blocked mesh 301 to rotate into the backwash chamber 201. At this time, the water flow from the filter chamber 101 to the backwash chamber 201 will flush the impurities on the blocked mesh 301 down into the backwash chamber 201, achieving hydraulic self-cleaning. The flushed impurities will be discharged to the outside by the action of the pumping device 10. The cleaned mesh 301 will then rotate back to one side of the filter chamber 101 for use.

[0039] In addition, such as Figure 6 As shown, the surface of the roller 3 is provided with several reinforcing ribs 302 equidistantly along the axial direction, with an included angle of 15° to 30° between adjacent reinforcing ribs 302. The reinforcing ribs 302 help to enhance the rigidity and strength of the roller 3; the aforementioned angle range helps to optimize the overall performance of the roller 3. If the included angle is too small, the reinforcing ribs 302 will be too dense, potentially increasing the weight and manufacturing cost of the roller 3; if the included angle is too large, the spacing between the reinforcing ribs 302 will be too large, possibly failing to fully utilize the reinforcing ribs 302 to enhance structural strength. The reinforcing ribs 302 also divide the surface of the roller 3 into several small surfaces. Each small surface between adjacent reinforcing ribs 302 is provided with several mesh holes 301. When the mesh holes 301 on the small surface of the roller 3 corresponding to the filter chamber 101 become clogged with impurities and require rotation, the reinforcing ribs 302 also act as a limiting barrier for the impurities, causing the impurities to rotate with the roller 3 to one side of the backwash chamber 201, where they are washed off.

[0040] like Figure 5 As shown, a sealing strip 801 is provided inside the load-bearing bracket 8. The sealing strip 801 helps to enhance the sealing between the roller 3 and the roller 3, thereby preventing shrimp from escaping. During the rotation of the roller 3, the reinforcing rib 302 can scrape open the sealing strip 801 to facilitate the movement of impurities to one side of the backwash chamber 201.

[0041] This shrimp pond sewage system mainly consists of a barrel-shaped shell 1 and a rotary filter assembly. During operation, the barrel-shaped shell 1 sinks or inserts into the silt at the bottom of the shrimp pond; its lower frustum structure facilitates fixation. Sewage enters the filter chamber 101 and is guided through the circumferential mesh 301 of the roller 3 to the backwash chamber 201. The roller 3 acts as a barrier to prevent fish and shrimp from falling into the backwash chamber 201. Sewage entering the backwash chamber 201 is then discharged to the outside via the outlet pipe 11 by the pumping device 10. The isolation net 9 prevents larger fish, shrimp, or debris from entering the barrel-shaped shell 1. As sewage discharge proceeds, smaller impurities clog the mesh 301 on the side of the roller 3 corresponding to the filter chamber 101. At this time, the motor 7 drives the roller 3 to rotate, turning the clogged mesh 301 to the side of the backwash chamber 201. The water flowing from the filter chamber 101 to the backwash chamber 201 flushes away the impurities, achieving hydraulic self-cleaning. The flushed impurities are then discharged by the pumping device 10.

[0042] The isolation effect of roller 3 on fish and shrimp prevents them from being drawn out of the shrimp pond during the sewage discharge process. In addition, roller 3 is rotatable, and its rotation function can achieve hydraulic self-cleaning, which can effectively solve the problem of clogging of mesh 301. It eliminates the need for frequent manual cleaning, reduces maintenance costs and manpower input, and improves sewage discharge efficiency.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom sewage discharge system for shrimp ponds, characterized in that: The system includes a barrel-shaped shell (1) and a rotary filter assembly. Inside the barrel-shaped shell (1) is a basin (2), which encloses a filter chamber (101). The basin (2) and the barrel-shaped shell (1) enclose a backwash chamber (201). The rotary filter assembly includes a roller (3) rotatably disposed on the basin (2). The circumferential surface of the roller (3) is provided with a mesh (301). The filter chamber (101) and the backwash chamber (201) are fluidly connected through the mesh (301). When wastewater enters the filter chamber (101), it is guided through the mesh (301) to the backwash chamber (201) for discharge; when the mesh (301) is blocked, the roller (3) is driven to rotate at a predetermined angle, so that the blocked mesh is turned into the backwash chamber (201) for hydraulic self-cleaning.

2. The shrimp pond bottom drainage system according to claim 1, characterized in that: The rotary filter assembly also includes a drive shaft (4), which is coaxially fixed on the drum (3); the drive shaft (4) is connected to a corner unit (5), the corner unit (5) is connected to one end of a transmission rod (6), and the other end of the transmission rod (6) is connected to a motor (7).

3. The shrimp pond bottom drainage system according to claim 2, characterized in that: It also includes a load-bearing bracket (8) for fixing on the basin (2), the roller (3) is rotatably mounted on the load-bearing bracket (8), the basin (2) is provided with an opening (202), and the roller (3) is located at the opening (202); the corner bracket (5) is connected and fixed on the load-bearing bracket (8).

4. The shrimp pond bottom drainage system according to claim 1, characterized in that: The surface of the roller (3) is provided with several reinforcing ribs (302) at equal intervals along the axial direction, and the included angle between adjacent reinforcing ribs (302) is 15°~30°.

5. The shrimp pond bottom drainage system according to claim 3 or 4, characterized in that: An isolation net (9) is provided on the barrel-shaped shell (1).

6. The shrimp pond bottom drainage system according to claim 5, characterized in that: The filter chamber (101) is equipped with a water pumping device (10), and the drain outlet of the water pumping device (10) is connected to a water outlet pipe (11) extending to the outside of the isolation net (9).

7. The shrimp pond bottom drainage system according to claim 2, characterized in that: It also includes a hollow tube (12), which is coaxially sleeved outside the transmission rod (6); a support plate (13) is provided at the upper end of the hollow tube (12), the motor (7) is connected to the support plate (13), and the lower end of the hollow tube (12) is connected to the isolation net (9).

8. The shrimp pond bottom drainage system according to claim 1, characterized in that: The lower end of the barrel-shaped shell (1) is an inverted frustum that slopes inward.

9. The shrimp pond bottom drainage system according to claim 8, characterized in that: The inverted frustum has an inclination angle of 30° to 60°.

10. The shrimp pond bottom drainage system according to claim 3, characterized in that: The load-bearing bracket (8) is provided with a sealing strip (801).

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