Water purifying and filtering device for culture pond

Abstract

The utility model relates to the technical field of fish culture equipment, in particular to a culture pond water purifying and filtering device which comprises a primary settling pond, the primary settling pond is located in a secondary settling pond, the primary settling pond and the secondary settling pond are fixedly connected through a pore plate, and the outer edge of the primary settling pond is higher than the outer edge of the secondary settling pond. The second-stage sedimentation tank is located in the third-stage sedimentation tank, the bottom of the third-stage sedimentation tank is fixedly connected with a drain pipe, the bottom of the second-stage sedimentation tank is fixedly connected with a sewage inlet pipe, a filter layer is placed on the pore plate, the bottom of the second-stage sedimentation tank is fixedly connected with a blow-off pipe, and the blow-off pipe is fixedly connected with a valve; water in the fishpond is filtered in the flowing direction from bottom to top through the first settling pond and the second settling pond which are arranged in a sleeved mode, heavy impurities such as most fish feces can settle to the bottom, and therefore the impurities cannot penetrate through the filter screen, the water purification effect is improved, and meanwhile the cleaning and replacing period of the filter screen can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to fish culture equipment technical field, concretely is a kind of aquaculture pond water purification filter device. BACKGROUND

[0002] Aquaculture has been an important way for mankind to obtain food and economic benefits since ancient times, including key technologies such as variety selection, water quality management, feed and nutrition, disease prevention and control, and aquaculture facilities and equipment. Water quality management ensures that dissolved oxygen, pH, ammonia nitrogen, nitrite and other indicators in the aquaculture water body are within the appropriate range through water quality monitoring, control and purification, and filters particulate impurities such as fish manure, providing a good growing environment for fish. The filter device used in indoor aquaculture currently mostly uses a filter screen, allowing water to flow from top to bottom through the filter screen for multi-layer filtration using gravity. This filtration method still allows some impurities to pass through the filter screen along with the water flow under the action of gravity during the filtration process, and the filter screen needs to be cleaned and replaced frequently, otherwise the desired filtration effect cannot be achieved. Therefore, a filter device with better filtration effect is needed. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of aquaculture pond water purification filter device.

[0004] To solve the above technical problems, the utility model provides a kind of aquaculture pond water purification filter device.

[0005] Further, the sewage inlet pipe is fixedly connected with a pump, and the pump is fixedly connected with the secondary sedimentation tank through a partition plate.

[0006] Further, the outer edge of the secondary sedimentation tank is serrated.

[0007] The utility model has the following advantages compared with the prior art:

[0008] 1. This utility model uses a first sedimentation tank and a second sedimentation tank to filter the water discharged from the fish pond in an upward flow direction. This allows most of the heavier impurities, such as fish feces, to naturally settle to the bottom, avoiding the need for all impurities to pass through the filter layer. This reduces the filtration pressure on the filter layer, extends the cleaning and replacement cycle of the filter layer, and increases the filtration effect on the fish pond water.

[0009] 2. This utility model ensures the settling effect of fish feces and other impurities by placing the outlet end of the sewage inlet pipe at the top of the primary sedimentation tank; by setting the outer edge of the secondary sedimentation tank in a sawtooth shape, it breaks the surface tension of the water during flow, increases the contact area with air, and thus increases the oxygen content in the water. Attached Figure Description

[0010] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0011] Fig. 2 This is a top view of the present invention.

[0012] In the diagram: 1. Primary sedimentation tank, 2. Secondary sedimentation tank, 3. Tertiary sedimentation tank, 4. Sewage inlet pipe, 5. Drainage pipe, 6. Sewage discharge pipe, 7. Perforated plate, 8. Filter layer, 9. Valve, 10. Pump, 11. Baffle plate. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figs. 1-2 The aquaculture pond water purification and filtration device shown includes a primary sedimentation tank 1, which is located inside a secondary sedimentation tank 2. The primary sedimentation tank 1 and the secondary sedimentation tank 2 are fixedly connected by a perforated plate 7. The primary sedimentation tank 1 has a bottomless and topless structure, and its outer edge is higher than that of the secondary sedimentation tank 2. The secondary sedimentation tank 2 is located inside a tertiary sedimentation tank 3. A drain pipe 5 is fixedly connected to the bottom of the tertiary sedimentation tank 3 to facilitate the transportation of filtered water to the next process. A sewage inlet pipe 4 is fixedly connected to the bottom of the secondary sedimentation tank 2, and the output end of the sewage inlet pipe 4 is located above the primary sedimentation tank 1 to transport the fish pond water to be filtered into the filtration device. A filter layer 8 is placed on the perforated plate 7. A sewage discharge pipe 6 is fixedly connected to the bottom of the secondary sedimentation tank 2, and a valve 9 is fixedly connected to the sewage discharge pipe 6 to perform regular cleaning of the filtration device and discharge sewage.

[0015] In order to transport the water in the aquaculture pond to the filtration device when the pond is below the filtration device, a pump 10 is fixedly connected to the sewage inlet pipe 4. The pump 10 is fixedly connected to the secondary sedimentation tank 2 through the partition 11.

[0016] In order to break the surface tension when the water flows, the outer edge of the secondary settling tank 2 is jagged, increasing the contact area with air, which can further increase the oxygen content in the water.

[0017] It should be noted that the filter layer 8 uses a polyethylene nylon net, and the valve 9 uses a remotely controllable electromagnetic valve, which is a prior art device and will not be described in detail.

[0018] The working process of the embodiment is as follows:

[0019] The water in the fish pond is transported into the device through the sewage inlet pipe 4 by the pump 10, and the particulate impurities such as fish feces in the water will gradually settle to the bottom of the second settling tank 2 under the action of gravity, and the water flow will gradually flow into the third settling tank 3 through the orifice plate 7 and the filter layer 8, completing the preliminary filtration treatment, and finally flowing into the lower process through the drain pipe 5 for pH value, ammonia nitrogen, and nitrite treatment. If there are too many impurities such as fish feces at the bottom of the second settling tank 2, the remotely controlled valve 9 is opened to flush the filter device, and after completion, the valve 9 is closed to continue filtering the water in the fish pond. If there are too many sticky impurities on the filter layer 8, it should be removed in time for cleaning or replacement.

Claims

1. A water purifying filter device for aquaculture ponds comprising a primary settling tank (1), characterized in that: The primary sedimentation tank (1) is located in the secondary sedimentation tank (2), the primary sedimentation tank (1) and the secondary sedimentation tank (2) are fixedly connected through the orifice plate (7), the primary sedimentation tank (1) is a structure without bottom and top, the outer edge of the primary sedimentation tank (1) is higher than the outer edge of the secondary sedimentation tank (2), the secondary sedimentation tank (2) is located in the tertiary sedimentation tank (3), the tertiary sedimentation tank (3) is fixedly connected with the drain pipe (5) at the bottom, the secondary sedimentation tank (2) is fixedly connected with the sewage inlet pipe (4) at the bottom, and the output end of the sewage inlet pipe (4) is located on the upper portion of the primary sedimentation tank (1), the orifice plate (7) is placed with the filter layer (8), the secondary sedimentation tank (2) is fixedly connected with the sewage discharge pipe (6) at the bottom, and the valve (9) is fixedly connected on the sewage discharge pipe (6).

2. The aquaculture pond water filtration system of claim 1, wherein: The sewage inlet pipe (4) is fixedly connected with the pump (10), and the pump (10) is fixedly connected with the secondary sedimentation tank (2) through the partition plate (11).

3. The aquaculture pond water filtration system of claim 1, wherein: The outer edge of the secondary sedimentation tank (2) is serrated.

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