Automatic drainage device for land-based round pond culture

Abstract

The utility model discloses an automatic drainage device for land-based round pond culture, which comprises a culture pond, a precipitation mechanism, a microfiltration mechanism and a biochemical reaction mechanism, the bottom of the culture pond is of a conical structure and is provided with a drainage port, and the precipitation mechanism comprises a barrel body, an overflow groove, a water outlet pipe, a baffle ring, a central pipe, a water inlet pipe, a connecting rod, a water receiving plate and a sewer pipe; the bottom of the barrel body is of a conical structure, and a drain outlet is formed in the bottom of the barrel body; the overflow groove is formed in the barrel body; one end of the water outlet pipe enters the overflow groove; the baffle ring is connected with the overflow groove, and an overflow opening is formed in the top of the baffle ring; the central pipe is fixedly connected with the baffle ring; one end of the water inlet pipe horizontally penetrates through the barrel body and enters the central pipe, and the top surface of the water inlet pipe is vertically arranged upwards; the connecting rod is connected with the central pipe; the water receiving plate is connected with the connecting rod; and the sewer pipe is arranged at the bottom of the inner side wall of the barrel body. The tail water purification device can effectively purify tail water and is high in purification efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of land-based round pond aquaculture, and in particular relates to an automatic drainage device for land-based round pond aquaculture. Background Art

[0002] The land-based circular pond aquaculture model is an efficient intensive aquaculture method. Its facility design on land makes it not restricted by geography, climate and seasons. This model includes key components such as circular aquaculture ponds, water inlet and outlet systems, oxygenation systems and tailwater treatment systems. It has the characteristics of short construction period, convenient assembly, strong durability and easy intelligent management. In addition, it can ensure the controllability of aquaculture water quality and the safety of aquatic product quality.

[0003] In the process of land-based circular pond farming, tail water containing excrement, detached culture body tissues and various suspended solids will be produced. Due to the use of bait and medicines, the tail water also contains harmful substances such as ammonia nitrogen, nitrite nitrogen, COD, nitrogen and phosphorus. If discharged directly without treatment, these tail waters will cause serious pollution to the environment. Therefore, the tail water must be purified to meet the discharge standards.

[0004] The current tailwater treatment system often uses sedimentation, microfiltration and biochemical purification methods, but this method has some problems. For example, although the vertical flow sedimentator commonly used in the sedimentation process can treat solid particles in the aquaculture water body, the high-level overflow of tailwater may disturb the sedimentation layer, causing the sediment to re-suspend, thereby reducing the sedimentation effect and increasing the pressure of the microfiltration equipment. In addition, the biochemical balls in the biochemical reaction equipment are easy to move under the action of water flow, which may affect the stability of the purification effect and thus reduce the efficiency of the biochemical reaction. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic drainage device for land-based circular pond aquaculture to solve the technical problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automatic drainage device for land-based circular pond aquaculture, comprising a breeding pond, a sedimentation mechanism, a microfiltration mechanism, and a biochemical reaction mechanism, wherein the breeding pond is vertically arranged, and its bottom is a conical structure, and a drainage port is provided at the bottom; the sedimentation mechanism comprises a barrel body, an overflow trough, a water outlet pipe, a retaining ring, a central pipe, a water inlet pipe, a connecting rod, a water receiving plate, and a downpipe; the barrel body is vertically arranged, and its bottom is a conical structure, and a sewage outlet is provided at the bottom; the overflow trough is horizontally arranged in the upper part of the barrel body; the water outlet pipe is horizontally arranged, and one end thereof horizontally passes through the barrel body into the overflow trough, and the other end thereof is connected to the inlet of the microfiltration mechanism; the retaining ring is horizontally arranged, and its outer side wall is fixed to the inner side wall of the overflow trough The center tube is vertically arranged, and its outer wall is fixedly connected to the inner wall of the baffle ring; one end of the water inlet pipe passes through the barrel body horizontally into the center tube, and its top surface is vertically arranged upward and fixedly connected to the inner wall of the center tube, and the other end is connected to the drain outlet on the bottom of the breeding pond; the connecting rod is vertically arranged, and its top surface is fixedly connected to the bottom surface of the center tube, and multiple ones are arranged at intervals along the circumferential direction of the bottom surface of the center tube; the water receiving plate is horizontally arranged, and its top surface is fixedly connected to the bottom surface of the connecting rod; the downpipe is vertically arranged at the bottom of the inner wall of the barrel body and is located below the water receiving plate.

[0008] Furthermore, the overflow port is a triangular overflow port.

[0009] Furthermore, the water receiving plate is a spherical crown structure with the top protruding upward.

[0010] Furthermore, the downpipe is a semicircular tube structure, and its cross section is fixedly connected to the inner wall of the barrel.

[0011] Furthermore, the downpipes are provided in plurality along the circumference of the inner wall of the barrel.

[0012] Furthermore, the microfiltration mechanism includes a rotary drum microfiltration machine.

[0013] Furthermore, the biochemical reaction device includes a reaction tank, an upper pressure plate, a lower pressure plate, a water inlet pipe, and a drain pipe; the reaction tank is vertically arranged; the upper pressure plate and the lower pressure plate are provided with through holes; the upper pressure plate is horizontally arranged at the upper part of the reaction tank; the lower pressure plate is horizontally arranged at the lower part of the reaction tank; biochemical balls are filled between the upper pressure plate and the lower pressure plate; one end of the water inlet pipe is connected to the outlet of the microfiltration mechanism, and the other end passes through the upper left part of the reaction tank and passes through the upper pressure plate and the lower pressure plate in sequence to enter the bottom of the lower pressure plate; one end of the drain pipe passes through the upper right part of the reaction tank, and the other end is connected to the breeding pond.

[0014] Furthermore, it also includes a partition and an overflow pipe; the partition is vertically arranged in the reaction tank, and multiple partitions are arranged at intervals to divide the reaction tank into multiple reaction zones; one end of the overflow pipe passes through the upper part of the previous partition, and the other end enters the next reaction zone, and the bottom passes downward through the upper pressure plate and the lower pressure plate in turn to enter the bottom of the next reaction zone.

[0015] Furthermore, a slag discharge port is provided at the bottom of the reaction zone.

[0016] Furthermore, a flushing water pipe is provided at the bottom of the reaction zone.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model can purify the tail water in the aquaculture pond by setting a sedimentation mechanism, a microfiltration mechanism and a biochemical reaction mechanism, and then return the tail water to the aquaculture pond for recycling. It has a strong purification effect and high efficiency, and can realize automatic drainage and automatic water purification.

[0019] 2. The sedimentation mechanism of the utility model can lead water to the inner wall of the barrel body by arranging a water receiving plate, so that the water flows down along the side wall, thereby slowing down the water flow speed. By arranging a downpipe, the water along the inner wall of the barrel body enters the downpipe for diversion, preventing the water from falling directly into the barrel body too quickly, causing disturbance to the sedimentation area, causing the sediment to be re-suspended, and reducing the sedimentation effect, thereby reducing the feed pressure of the microfiltration mechanism and improving the filtering effect.

[0020] 3. The biochemical reaction mechanism of the utility model can press the biochemical balls between the upper and lower pressure plates by arranging the upper and lower pressure plates, thereby preventing the biochemical balls from moving due to the flow of water and improving the biochemical reaction effect.

[0021] 4. The biochemical reaction mechanism of the utility model can perform multi-stage biochemical reactions by setting up multiple reaction zones, thereby maximizing the biochemical reaction effect and purifying tail water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the sedimentation mechanism of the utility model;

[0024] Figure 3 It is a schematic diagram of the top surface structure of the sedimentation mechanism of the utility model;

[0025] Figure 4 It is a schematic diagram of the connection structure of the downpipe of the utility model;

[0026] Figure 5 It is a cross-sectional view of the sedimentation mechanism of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the biochemical reaction mechanism of the utility model;

[0028] In the accompanying drawings, 1-breeding pond;

[0029] 2- sedimentation mechanism; 201- barrel body; 202- overflow trough; 203- outlet pipe; 204- retaining ring; 205- overflow port; 206- center pipe; 207- water inlet pipe; 208- connecting rod; 209- water receiving plate; 210- down pipe;

[0030] 3- Microfiltration mechanism;

[0031] 4-biochemical reaction mechanism; 401-reaction tank; 402-upper pressure plate; 403-lower pressure plate; 404-water inlet pipe; 405-drain pipe; 406-biochemical ball; 407-partition; 408-reaction zone; 409-overflow pipe; 410-slag discharge port; 411-flushing water pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0033] like Figure 1-6As shown, an automatic drainage device for land-based circular pond aquaculture includes a culture pond 1, a sedimentation mechanism 2, a microfiltration mechanism 3, and a biochemical reaction mechanism 4. The culture pond 1 is vertically arranged, and its bottom is a conical structure, and a drainage port is provided at the bottom; the sedimentation mechanism 2 includes a barrel 201, an overflow trough 202, a water outlet pipe 203, a retaining ring 204, a central pipe 206, a water inlet pipe 207, a connecting rod 208, a water receiving plate 209, and a downpipe 210; the barrel 201 is vertically arranged, and its bottom is a conical structure, and a sewage outlet is provided at the bottom, and the drainage port is provided at the bottom. A valve is provided on the sewage outlet; the overflow groove 202 is horizontally arranged at the upper part of the barrel body 201; the outlet pipe 203 is horizontally arranged, one end of which horizontally passes through the barrel body 201 into the overflow groove 202, and the other end is connected to the inlet of the microfiltration mechanism 3; the baffle ring 204 is horizontally arranged, and its outer wall is fixedly connected to the inner wall of the overflow groove 202, and the top surface of the baffle ring 204 is higher than the top surface of the overflow groove 202 and lower than the top surface of the barrel body 201, and a plurality of overflow ports 205 are opened on the top of the baffle ring 204; the central pipe 206 is vertical ... and the top surface of the baffle ring 204 is fixedly connected to the inner wall of the overflow groove 202 and the top surface of the baffle ring 204 is fixedly connected to the inner wall of the overflow groove 202 and the top surface of the baffle ring 204 is fixedly connected to the inner wall of the overflow groove 202 and the top surface of the baffle ring 204 is fixedly connected to the inner wall of the overflow groove 202 and the top surface of the baffle ring 204 is fixedly connected to the inner wall of the overflow groove 202 and the top surface of the baffle ring 204 is fixedly connected to the inner wall of the overflow groove 202 and the top surface of the baffle ring 204 is fixedly connected The side wall is fixedly connected to the inner wall of the retaining ring 204 by a connecting piece; one end of the water inlet pipe 207 horizontally passes through the barrel body 201 and enters the central tube 206, and its top surface is vertically arranged upward and fixedly connected to the inner wall of the central tube 206 by a connecting piece, and the other end is connected to the drainage outlet on the bottom of the breeding pond 1; the tail water enters the central tube 206 from the water inlet pipe 207, overflows the water inlet pipe 207, falls to the bottom of the barrel body 201 for sedimentation, and the tail water continuously enters the barrel body 201, and the water level in the barrel body 201 rises. When the water level rises to the retaining ring 204 When the overflow port 205 is formed, the upper clear water after sedimentation flows out of the overflow trough 202 from the overflow port 205, and then flows into the microfiltration mechanism 3 from the overflow trough 202, and the lower sediment is discharged from the sewage outlet; the connecting rod 208 is vertically arranged, and its top surface is fixedly connected to the bottom surface of the central tube 206, and multiple connecting rods are arranged at intervals along the circumferential direction of the bottom surface of the central tube 206; the water receiving plate 209 is horizontally arranged, and its top surface is fixedly connected to the bottom surface of the connecting rod 208; the downpipe 210 is vertically arranged at the bottom of the inner wall of the barrel body 201, and is located below the water receiving plate 209. The tail water overflowing from the water inlet pipe 207 falls from the central tube 206 onto the water receiving plate 209, reduces the water flow speed, and flows down from the water receiving plate 209, and then is diverted from the downpipe 210, and finally enters the bottom of the barrel body 201.

[0034] like Figure 1-3 As shown, the overflow port 205 is a triangular overflow port 205 , and the triangular overflow port 205 has a fast water discharge speed and uniform water discharge.

[0035] like Figure 4 As shown, the water receiving plate 209 is a spherical crown structure with an upwardly protruding top, which can make the water flow obliquely downward, so that the water flows down along the side wall of the barrel body 201 and enters the downpipe 210.

[0036] like Figure 5 As shown, the downpipe 210 is a semicircular tube structure, and its cross section is fixedly connected to the inner wall of the barrel body 201 . The semicircular structure enables water to flow smoothly into the downpipe 210 .

[0037] The water pipes 210 are arranged in a plurality along the circumferential direction of the inner wall of the barrel body 201 , and the plurality of water pipes 210 can separate the water flow into multiple streams.

[0038] The microfiltration mechanism 3 comprises a rotary drum microfiltration machine.

[0039] like Figure 6 As shown, the biochemical reaction device includes a reaction tank 401, an upper pressure plate 402, a lower pressure plate 403, a water inlet pipe 404, and a drain pipe 405; the reaction tank 401 is vertically arranged; the upper pressure plate 402 and the lower pressure plate 403 are provided with through holes; the upper pressure plate 402 is horizontally arranged at the upper part of the reaction tank 401; the lower pressure plate 403 is horizontally arranged at the lower part of the reaction tank 401; biochemical balls 406 are filled between the upper pressure plate 402 and the lower pressure plate 403; the upper pressure plate 402 and the lower pressure plate 403 can press the filled biochemical balls 406, so that the filling layer of the biochemical balls 406 is stable and is not moved by the impact of the water flow; the water inlet pipe 404 is provided with a water outlet pipe 405; the upper pressure plate 402 and the lower pressure plate 403 are provided with a water outlet pipe 406; the upper pressure plate 402 and the lower pressure plate 403 are provided with a water outlet pipe 405 ...5; the upper pressure plate 402 and the lower pressure plate 403 are provided with a water outlet pipe 405; the upper pressure plate 402 and the lower pressure plate 403 are provided with a water outlet pipe 405; the upper pressure plate One end of the tube 404 is connected to the outlet of the microfiltration mechanism 3, and the other end passes through the upper left part of the reaction tank 401 and passes through the upper pressure plate 402 and the lower pressure plate 403 in sequence, and enters the bottom of the lower pressure plate 403; the water entering the reaction tank 401 is injected into the bottom of the reaction tank 401 from the water inlet pipe 404, and as the water is continuously injected, the water level gradually rises, and a biochemical reaction is carried out when passing through the biochemical ball 406, and the supernatant water is discharged from the drain pipe 405, and the sediment sinks to the bottom of the reaction tank 401; one end of the drain pipe 405 passes through the upper right part of the reaction tank 401, and the other end is connected to the culture pond 1, and the water after the biochemical reaction can be injected into the culture pond 1 for recycling.

[0040] It also includes a partition 407 and an overflow pipe 409; the partition 407 is vertically arranged in the reaction tank 401, and multiple partitions are arranged at intervals to divide the reaction tank 401 into multiple reaction zones 408; one end of the overflow pipe 409 passes through the upper part of the previous partition 407, and the other end enters the next reaction zone 408, and the bottom passes downward through the upper pressure plate 402 and the lower pressure plate 403 in turn to enter the bottom of the next reaction zone 408. By setting up multiple reaction zones 408, water can undergo multi-stage biochemical reactions, thereby improving the biochemical reaction effect.

[0041] The bottom of the reaction zone 408 is provided with a slag discharge port 410, and the lower layer of precipitation is discharged through the slag discharge port 410.

[0042] A flushing water pipe 411 is provided at the bottom of the reaction zone 408 , and the flushing water pipe 411 is connected to an external water source; the reaction tank 401 is flushed through the flushing water pipe 411 .

[0043] Valves and pumps are arranged on the interconnecting pipelines of the culture pond 1, the sedimentation mechanism 2, the microfiltration mechanism 3 and the biochemical reaction mechanism 4.

[0044] The working mode of the utility model is:

[0045] First, the tail water is discharged from the bottom of the culture pond 1 and guided to the central pipe 206 through the water inlet pipe 207 of the sedimentation mechanism 2. The tail water overflows the central pipe 206 in the water inlet pipe 207, slows down the flow rate through the water receiving plate 209, and flows along the inner wall of the barrel 201 to the downpipe 210 for diversion. As the tail water continues to enter, the water level in the barrel 201 gradually rises. When it reaches the overflow port 205 of the retaining ring 204, the supernatant water after preliminary sedimentation flows from the overflow port 205 into the overflow tank 202, and enters the microfiltration mechanism 3 through the outlet pipe 203 for microfiltration, and the sediment is discharged from the sewage outlet at the bottom of the barrel 201.

[0046] The filtered water is sent to the first reaction zone 408 of the biochemical reaction mechanism 4, where it undergoes a biochemical reaction after contacting the biochemical balls 406, and the precipitate sinks to the bottom of the reaction zone 408. The supernatant water continues to enter the next reaction zone 408 through the overflow pipe 409 to undergo a multi-stage biochemical reaction. Finally, the treated water flows back to the culture pond 1 through the drain pipe 405, realizing the recycling of water resources, and the precipitate is discharged through the slag discharge port 410.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic drainage device for land-based circular pond aquaculture, comprising a breeding pond, a sedimentation mechanism, a microfiltration mechanism, and a biochemical reaction mechanism, characterized in that: The breeding pond is vertically arranged, and its bottom is a conical structure, and a drainage port is provided at the bottom: the sedimentation mechanism comprises a barrel body, an overflow trough, a water outlet pipe, a retaining ring, a central pipe, a water inlet pipe, a connecting rod, a water receiving plate, and a downpipe; the barrel body is vertically arranged, and its bottom is a conical structure, and a sewage outlet is provided at the bottom; the overflow trough is horizontally arranged in the upper part of the barrel body; the water outlet pipe is horizontally arranged, and one end thereof horizontally passes through the barrel body into the overflow trough, and the other end is connected to the inlet of the microfiltration mechanism; the retaining ring is horizontally arranged, and its outer side wall is fixedly connected to the inner side wall of the overflow trough, and the top surface height of the retaining ring is higher than the top surface height of the overflow trough. The top of the retaining ring is provided with a plurality of overflow ports; the central tube is vertically arranged, and its outer side wall is fixedly connected to the retaining ring; one end of the water inlet pipe passes horizontally through the barrel body into the central tube, and its top surface is vertically arranged upward and fixedly connected to the inner side wall of the retaining ring, and the other end is connected to the drainage port on the bottom of the breeding pond; the connecting rod is vertically arranged, and its top surface is fixedly connected to the bottom surface of the central tube, and a plurality of connecting rods are arranged at intervals along the circumference of the bottom surface of the central tube; the water receiving plate is horizontally arranged, and its top surface is fixedly connected to the bottom surface of the connecting rod; the downpipe is vertically arranged at the bottom of the inner side wall of the barrel body, and is located below the water receiving plate.

2. The automatic drainage device for land-based circular pond aquaculture according to claim 1, characterized in that: The overflow port is a triangular overflow port.

3. The automatic drainage device for land-based circular pond aquaculture according to claim 1, characterized in that: The water receiving plate is a spherical crown structure with the top protruding upward.

4. The automatic drainage device for land-based circular pond aquaculture according to claim 1, characterized in that: The downpipe is a semicircular pipe structure, and its cross section is fixedly connected to the inner wall of the barrel.

5. The automatic drainage device for land-based circular pond aquaculture according to claim 1, characterized in that: A plurality of downpipes are arranged along the circumference of the inner wall of the barrel.

6. The automatic drainage device for land-based circular pond aquaculture according to claim 1, characterized in that: The microfiltration mechanism comprises a rotary drum microfiltration machine.

7. The automatic drainage device for land-based circular pond aquaculture according to claim 1, characterized in that: The biochemical reaction mechanism includes a reaction tank, an upper pressure plate, a lower pressure plate, a water inlet pipe, and a drain pipe; the reaction tank is vertically arranged; the upper pressure plate and the lower pressure plate are provided with through holes; the upper pressure plate is horizontally arranged at the upper part of the reaction tank; the lower pressure plate is horizontally arranged at the lower part of the reaction tank; biochemical balls are filled between the upper pressure plate and the lower pressure plate; one end of the water inlet pipe is connected to the outlet of the microfiltration mechanism, and the other end passes through the upper left part of the reaction tank and passes through the upper pressure plate and the lower pressure plate in sequence to enter the bottom of the lower pressure plate; one end of the drain pipe passes through the upper right part of the reaction tank, and the other end is connected to the breeding pond.

8. The automatic drainage device for land-based circular pond aquaculture according to claim 7, characterized in that: It also includes a partition and an overflow pipe; the partition is vertically arranged in the reaction tank, and multiple partitions are arranged at intervals to divide the reaction tank into multiple reaction zones; one end of the overflow pipe passes through the upper part of the previous partition, and the other end enters the next reaction zone, and the bottom passes downward through the upper pressure plate and the lower pressure plate in turn to enter the bottom of the next reaction zone.

9. The automatic drainage device for land-based circular pond aquaculture according to claim 8, characterized in that: The bottom of the reaction zone is provided with a slag discharge port.

10. The automatic drainage device for land-based circular pond aquaculture according to claim 8, characterized in that: A flushing water pipe is provided at the bottom of the reaction zone.

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