Precipitation bin for outer pond culture

Abstract

The utility model provides a precipitation bin for external pond culture, which comprises a precipitation bin body, the precipitation bin body is of an open square box structure, two water inlet pipes are arranged at the middle upper part of the precipitation bin body, an inclined bottom plate is arranged at the bottom of the precipitation bin body, two water outlet pipes are arranged on the precipitation bin body, and the two water outlet pipes are communicated with the precipitation bin body. The water outlet pipe is arranged on the side wall of the side, opposite to the water inlet pipe, of the precipitation bin body, a partition plate is arranged in the precipitation bin body, the partition plate is arranged at the lower end of the water outlet pipe and is flush with the lower edge of the water outlet pipe, a water baffle is vertically arranged on the partition plate, and the upper end of the water baffle is in a sawtooth shape. The sedimentation bin is simple in structure, the partition plate is arranged in front of the water outlet pipe, and the sawtooth-shaped water baffle is arranged on the partition plate, so that floating objects in the sedimentation bin can be effectively isolated, an outlet of the water outlet pipe is prevented from being blocked, normal operation of the sedimentation bin is guaranteed, and manual cleaning frequency and labor intensity are reduced.

Description

Technical Field

[0001] The utility model relates to the field of aquaculture water treatment devices, in particular to a sedimentation bin for outdoor pond aquaculture. Background Art

[0002] Open pond aquaculture refers to a method of fish farming conducted in natural waters such as small or medium-sized lakes, rivers, and tributaries. This method involves blocking portions of the water area or the inlet and outlet of the water using tools such as bamboo foil or mesh. Open pond aquaculture utilizes natural bait, is low-cost, labor-intensive, and highly profitable.

[0003] Existing water treatment technologies, whether for indoor or outdoor pond aquaculture, generally utilize filtration, sedimentation, aeration, and biochemical culture to artificially recirculate aquaculture water. Due to sedimentation and fish feces, aquaculture water contains significant amounts of impurities. Therefore, prior to aquaculture wastewater treatment, solid-liquid separation is essential to minimize impurities and simplify subsequent wastewater treatment. Therefore, sedimentation is a low-energy, low-cost, and high-yield water treatment step that reduces the frequency of water changes and is a necessary step in most water treatment systems.

[0004] Due to the large area of ​​water in the outer pond aquaculture, the sedimentation tank used is also relatively large. The sedimentation tank used generally adopts an open structure. During use, impurities such as fallen leaves and clinker bags float on the water surface, which can easily clog the outlet pipe, resulting in poor water discharge and even causing the sedimentation tank to be unable to be used normally. Manual work is required frequently, which is labor-intensive, time-consuming and labor-intensive, and is not suitable for modern aquaculture requirements. If it is changed to a fully enclosed type, the construction cost will increase significantly and it will be inconvenient to clean. Summary of the Invention

[0005] The purpose of the utility model is to provide a sedimentation bin for outdoor pond aquaculture, which can automatically isolate floating objects in the sedimentation bin, ensure the normal operation of the outlet pipe, and reduce the frequency of manual cleaning.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A sedimentation bin for outdoor pond aquaculture includes a sedimentation bin body, which is an open square box structure. Two water inlet pipes are provided in the middle and upper part of the sedimentation bin body, and an inclined bottom plate is provided at the bottom of the sedimentation bin body. A sewage pipe is connected to the bottom of the sedimentation bin body. Two water outlet pipes are provided on the sedimentation bin body. The water outlet pipes are provided on the side wall of the sedimentation bin body on the opposite side of the water inlet pipe. The height of the water outlet pipe is higher than that of the water inlet pipe. A partition plate is provided in the sedimentation bin body, which is provided at the lower end of the water outlet pipe and is flush with the lower edge of the water outlet pipe. The partition plate is horizontally arranged and connected to the left and right side walls of the sedimentation bin body. A water baffle is vertically provided on the partition plate, and the upper end of the water baffle is serrated.

[0008] Furthermore, the inclination angle of the bottom plate is 15-30 degrees.

[0009] Furthermore, a collecting tank is provided at the bottom end of the bottom plate, and the sewage pipe is connected to the collecting tank.

[0010] Furthermore, the diameter of the water outlet pipe is the same as or slightly larger than the diameter of the water inlet pipe.

[0011] Furthermore, a plurality of diversion holes are provided on the water retaining plate, and the diversion holes are located at the lower ends of the saw teeth.

[0012] Furthermore, three baffles are provided in the sedimentation bin body, including a first baffle, a second baffle and a third baffle. The three baffles divide the sedimentation bin body into a first sedimentation area and a second sedimentation area, wherein the first baffle is provided parallel to the side wall on one side of the outlet pipe, and its upper end is flush with the top of the sedimentation bin body, the second baffle is provided vertically at the bottom end of the first baffle, that is, the first baffle is provided horizontally, and the third baffle is provided vertically at the bottom end of the second baffle, that is, the third baffle and the first baffle are provided horizontally, and a filter plate is directly provided on the side wall of the sedimentation bin body on the side of the third baffle and the outlet pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model discloses a simple structure, by arranging a partition plate in front of the water outlet pipe and arranging a serrated water baffle on the partition plate, it can effectively isolate the floating objects in the sedimentation bin, prevent the outlet of the water outlet pipe from being blocked, so that the purified water in the sedimentation bin can flow out normally, ensure the normal operation of the sedimentation bin, and reduce the frequency and labor intensity of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0016] Attachment Figure 2 It is a cross-sectional schematic diagram of Example 1 of the present utility model;

[0017] Attachment Figure 3 It is a cross-sectional schematic diagram of Example 2 of the present utility model. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0019] Example 1, as Figure 1 、 Figure 2 As shown, a sedimentation bin for outdoor pond aquaculture includes a sedimentation bin body 1, which is an open square box structure. Two water inlet pipes 2 are provided in the middle and upper part of the sedimentation bin body 1. The aquaculture water that needs to be treated in the outdoor pond aquaculture pool enters the sedimentation bin body 1 through the water inlet pipes 2. The bottom of the sedimentation bin body 1 is provided with an inclined bottom plate 3, and the inclination angle of the bottom plate 3 is 15-30 degrees. A collecting trough 4 is provided at the bottom of the bottom plate 3. Large particles of impurities in the water are precipitated on the bottom plate 3, and the large particles of impurities slowly slide along the inclined bottom plate 3 into the collecting trough 4. A sewage pipe 5 is connected to the bottom of the sedimentation bin body 1, and the sewage pipe 5 is connected to the collecting trough 4. The collected impurities enter the sewage pipe 5 through the collecting trough 4 and are discharged from the sedimentation bin body 1.

[0020] Two outlet pipes 6 are provided on the sedimentation bin body 1. The outlet pipe 6 is provided on the side wall of the sedimentation bin body 1 on the opposite side of the inlet pipe 2. The height of the outlet pipe 6 is higher than the height of the inlet pipe 2. The purpose is that the higher outlet pipe position can make the sewage stay in the sedimentation tank for a longer time, allowing the suspended particles to have sufficient time to settle to the bottom of the pool under the action of gravity, thereby improving the removal efficiency of suspended matter in the sewage and making the effluent water quality clearer; the diameter of the outlet pipe 6 is the same as or slightly larger than the diameter of the inlet pipe 2, so that the water level of the sedimentation bin body 1 is maintained at a fixed water level; a partition plate 7 is provided in the sedimentation bin body 1, and the partition plate 7 is provided at the lower end of the outlet pipe 6 and is flush with the lower edge of the outlet pipe 6. The partition plate 7 is horizontally arranged and connected to the left and right side walls of the sedimentation bin body 1. The partition plate 7 is used to increase the hydraulic retention time. The water retaining plate 8 is provided with a water baffle 8, the upper end of which is serrated. The water baffle 8 is used to block floating objects floating on the water surface. Since the sedimentation tank is used in an outer pond and has a large open area, it is inevitable that impurities such as leaves and plastic paper will fall into the sedimentation tank body 1 during use. The water baffle 8 can effectively prevent floating objects from entering the water outlet pipe 6. The advantage of the serrated top is that when there are large floating objects or foam on the water surface, the water baffle 8 can not only block the floating objects, but also the water body can enter the water outlet pipe 6 from the gap between the serrated teeth at the lower end of the floating objects, preventing the floating objects from clogging the water outlet pipe; as a further optimization of the present invention, a plurality of diversion holes 81 are opened on the water baffle 8, and the diversion holes 81 are located at the lower end of the serrations. When the water baffle 8 blocks a large amount of floating objects, the water body can enter the water outlet pipe 6 from the diversion holes 81, ensuring the water outlet rate and preventing the floating objects from crossing the water baffle 8 due to the rising water body.

[0021] The aquaculture water to be treated enters the sedimentation tank body 1 from the water inlet pipe 2, and the large particles of impurities in the aquaculture water slowly settle on the bottom plate 3. Part of the sediment slides into the collection tank 4 and enters the sewage pipe 5 for discharge. Floating objects such as leaves in the water body are retained in the sedimentation tank body 1 after being blocked by the water baffle 8. The settled water body enters the water outlet pipe 6 from the serrated gap of the water baffle 8 and is discharged from the sedimentation tank body 1. When there are too many impurities in the sedimentation tank body 1, the water inlet pipe 2 is closed and the water in the sedimentation tank body 1 is discharged through the sewage pipe 5. The side wall and bottom plate 3 of the sedimentation tank body 1 are flushed with a high-pressure water gun, and the cleaned impurities are discharged through the sewage pipe 5.

[0022] Example 2, as Figure 3As shown, three baffles are arranged in the sedimentation bin body 1, including a first baffle 11, a second baffle 12 and a third baffle 13. The three baffles divide the sedimentation bin body 1 into a first sedimentation area 16 and a second sedimentation area 14, wherein the first baffle 11 is arranged parallel to the side wall on the side of the outlet pipe 6, and its upper end is flush with the top of the sedimentation bin body 1, the second baffle 12 is vertically arranged at the bottom end of the first baffle 11, that is, the first baffle 11 is horizontally arranged, and the third baffle 13 is vertically arranged at the bottom end of the second baffle 12, that is, the third baffle 13 and the first baffle 11 are horizontally arranged, and a filter plate 15 is directly provided on the side wall of the sedimentation bin body 1 on the side of the third baffle 13 and the outlet pipe 6, and the filter plate 15 is used to block large particles from entering the second sedimentation area 17.

[0023] The aquaculture water to be treated enters the first sedimentation area 16 from the water inlet pipe 2, passes through the obstruction of the first baffle 11, and flows downward. When it reaches the second baffle 12 and the third baffle 13 area, the water area gradually increases and the flow rate gradually slows down. The particles in the water slowly settle on the bottom plate 3, and under the influence of the inclination angle of the bottom plate 3 and the water flow, the impurities settled on the bottom plate 3 gradually slide into the collection tank 4, and then the water passes through the filter plate 15 and enters the second sedimentation area 14. The larger particle impurities in the water are blocked by the filter mesh 15 in the first sedimentation area 16. The water entering the second sedimentation area 14 continues to rise, enters the outlet pipe 6 from the serrated gap of the baffle 8 and is discharged from the sedimentation bin body 1.

[0024] The utility model discloses a simple structure, by arranging a partition plate in front of the water outlet pipe and arranging a serrated water baffle on the partition plate, it can effectively isolate the floating objects in the sedimentation bin, prevent the outlet of the water outlet pipe from being blocked, so that the purified water in the sedimentation bin can flow out normally, ensure the normal operation of the sedimentation bin, and reduce the frequency and labor intensity of manual cleaning.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sedimentation tank for outdoor pond aquaculture, comprising a sedimentation tank body, characterized in that: The sedimentation bin body is an open square box structure, with two water inlet pipes provided in the middle and upper part of the sedimentation bin body, an inclined bottom plate provided at the bottom of the sedimentation bin body, and a sewage pipe connected to the bottom of the sedimentation bin body. Two water outlet pipes are provided on the sedimentation bin body, and the water outlet pipes are provided on the side wall of the sedimentation bin body on the opposite side of the water inlet pipe. The height of the water outlet pipe is higher than the height of the water inlet pipe. A partition plate is provided in the sedimentation bin body, and the partition plate is provided at the lower end of the water outlet pipe and is flush with the lower edge of the water outlet pipe. The partition plate is horizontally arranged and connected to the left and right side walls of the sedimentation bin body. A water baffle is vertically provided on the partition plate, and the upper end of the water baffle is serrated.

2. The sedimentation tank for outdoor pond aquaculture according to claim 1, characterized in that: The inclination angle of the bottom plate is 15-30 degrees.

3. The sedimentation tank for outdoor pond aquaculture according to claim 1, characterized in that: A collecting tank is provided at the bottom end of the bottom plate, and the sewage pipe is connected to the collecting tank.

4. The sedimentation tank for outdoor pond aquaculture according to claim 1, characterized in that: The diameter of the water outlet pipe is the same as or slightly larger than the diameter of the water inlet pipe.

5. The sedimentation tank for outdoor pond aquaculture according to claim 1, characterized in that: A plurality of diversion holes are provided on the water retaining plate, and the diversion holes are located at the lower ends of the saw teeth.

6. The sedimentation tank for outdoor pond aquaculture according to claim 1, characterized in that: Three baffles are arranged in the sedimentation bin body, including a first baffle, a second baffle and a third baffle. The three baffles divide the sedimentation bin body into a first sedimentation area and a second sedimentation area, wherein the first baffle is arranged parallel to the side wall on one side of the outlet pipe, and its upper end is flush with the top of the sedimentation bin body, the second baffle is arranged vertically at the bottom end of the first baffle, that is, the first baffle is arranged horizontally, and the third baffle is arranged vertically at the bottom end of the second baffle, that is, the third baffle and the first baffle are arranged horizontally, and a filter plate is directly provided on the side wall of the sedimentation bin body on the side of the third baffle and the outlet pipe.

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