Multi-stage raw water filtering device

Abstract

The utility model provides a multi-stage raw water filtering device. The problems that filtering layers arranged in an existing aquaculture filtering device are usually installed in a filtering box from top to bottom, the overall filtering effect is poor, the filtering layers need to be replaced regularly, and use is inconvenient are solved. The device comprises a first-stage filtering tank, a second-stage filtering tank and a third-stage filtering tank which are sequentially arranged in the water flow conveying direction, the first-stage filtering tank, the second-stage filtering tank and the third-stage filtering tank are each provided with a water inlet and a water outlet, and the height of the water inlet is larger than that of the water outlet. A first filtering mechanism, a second filtering mechanism and a third filtering mechanism are arranged in the first-stage filtering tank, the second-stage filtering tank and the third-stage filtering tank respectively to filter solid impurities in water, the water is treated through a physical filtering method, substances harmful to aquaculture products cannot be generated, the solid impurities in the water are removed, and the water quality is improved. The structure is simple and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter device technical field, especially relate to a multistage raw water filter device. BACKGROUND

[0002] Aquaculture refers to the cultivation and breeding of aquatic plants and animals in water or water environment through artificial means to obtain economic benefits. During aquaculture, water quality often needs to be cleaned to ensure that the aquatic plants and animals in the breeding pond have a good living environment and to speed up the production of the aquatic plants and animals. In addition, leaves and impurities and bacteria generated by the aquatic plants and animals may also appear in the breeding pond. Therefore, aquaculture usually uses a filter device to filter impurities and bacteria in water. Since the filtering precision of suspended solids, organic matter and impurities and bacteria in water is different, filter layers with different filtering precision need to be arranged. In addition, since the quantity and concentration of various substances to be filtered in water are different, the service life of each filter layer is different. The filter layers arranged in the filter device for aquaculture on the market are usually installed in the filter box from top to bottom, and the overall filtering effect is poor. In addition, the filter layers need to be replaced regularly, which is inconvenient to use. When the filter layers need to be replaced, the filter device usually needs to be stopped, and the filter layer above the filter layer to be replaced or cleaned is taken out first, which reduces the efficiency of cleaning or replacing the filter layer. The prior art has room for improvement. SUMMARY

[0003] The utility model discloses a multistage raw water filter device, which comprises a first filter tank, a second filter tank and a third filter tank arranged in sequence along the water flow conveying direction. Water inlets and water outlets are arranged on the first filter tank, the second filter tank and the third filter tank. The height of the water inlet is greater than that of the water outlet. First, second and third filter mechanisms are arranged in the first filter tank, the second filter tank and the third filter tank respectively to filter solid impurities in water.

[0004] Preferably, the water inlet and the water outlet on the first filter tank are located on the left and right sides of the first filter mechanism. The first filter mechanism comprises an upper baffle and a lower baffle fixedly arranged in the filter tank. The upper baffle is located on the side facing the water inlet. A certain gap is left between the lower end of the upper baffle and the bottom of the first filter tank. The lower baffle is located between the upper baffle and the water outlet. The lower end of the lower baffle is fixedly arranged on the bottom of the first filter tank. The upper baffle and the lower baffle are fixedly arranged on the inner wall of the first filter tank on both sides.

[0005] Preferably, a filter cartridge is arranged at the water inlet of the first filter tank.

[0006] Preferably, a cover plate is arranged on the upper end of the upper baffle and the lower baffle.

[0007] As preferred, the water inlet and outlet on the secondary filter tank are arranged on the upper and lower sides of the second filter mechanism, the second filter mechanism comprises a fixed plate arranged in the secondary filter tank, the fixed plate is annular and arranged in horizontal direction, the outer periphery of the fixed plate is fixedly arranged on the inner wall of the secondary filter tank, and a circle of triangular weir plates extending upward is fixedly arranged on the inner wall of the fixed plate.

[0008] As preferred, the bottom of the fixed plate is fixedly provided with a plurality of reinforcing plates, and the reinforcing plates are fixedly arranged on the inner wall of the secondary filter tank.

[0009] As preferred, the tertiary filter tank is fixedly provided with a water outlet pipe communicated with the water outlet in the tertiary filter tank, and a filter screen is fixedly arranged on the end of the water outlet pipe away from the water outlet.

[0010] As preferred, the bottom of the tertiary filter tank is fixedly provided with a support plate for supporting the water outlet pipe.

[0011] As preferred, the primary filter tank, the secondary filter tank and the tertiary filter tank are all provided with a vent.

[0012] Compared with the prior art, the utility model discloses a physical filter for treating water, which will not produce any harmful substances to the breeding products, and the solid impurities in the water body can be removed through the primary filter tank, the secondary filter tank and the tertiary filter tank arranged in sequence, and the structure is simple and practical. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic view of the utility model.

[0014] Figure 2 It is the structure schematic view of the primary filter tank.

[0015] Figure 3 It is the structure schematic view of the secondary filter tank.

[0016] Figure 4 It is the structure schematic view of the tertiary filter tank.

[0017] Mark in the drawing: 1, primary filter tank;2, secondary filter tank;3, tertiary filter tank;4, water inlet;5, water outlet;6, upper baffle;7, lower baffle;8, filter cartridge;9, cover plate;10, fixed plate;11, triangular weir plate;12, reinforcing plate;13, water outlet pipe;14, filter screen;15, support plate;16, vent. DETAILED DESCRIPTION

[0018] The utility model will be further described in connection with the embodiment shown in the drawings:

[0019] As Figures 1-4 shown, a multi-stage raw water filtering device, comprising a first-stage filtering tank 1, a second-stage filtering tank 2 and a third-stage filtering tank 3 arranged in sequence along the water flow conveying direction, the first-stage filtering tank 1, the second-stage filtering tank 2 and the third-stage filtering tank 3 are all provided with a water inlet 4 and a water outlet 5, and the height of the water inlet 4 is greater than that of the water outlet 5, the first-stage filtering tank 1, the second-stage filtering tank 2 and the third-stage filtering tank 3 are all provided with first filtering mechanism, second filtering mechanism and third filtering mechanism respectively to filter the solid impurities in the water. The first-stage filtering tank 1, the second-stage filtering tank 2 and the third-stage filtering tank 3 are all provided with a discharge port 16. The water is treated by physical filtration, and no harmful substances to the breeding products are produced, and the solid impurities in the water are removed through the first-stage filtering tank 1, the second-stage filtering tank 2 and the third-stage filtering tank 3 arranged in sequence, and the structure is simple and practical.

[0020] The water inlet 4 and the water outlet 5 on the first-stage filtering tank 1 are respectively located on the left and right sides of the first filtering mechanism, the first filtering mechanism comprises an upper baffle 6 and a lower baffle 7 fixedly arranged in the filtering tank, the upper baffle 6 is located on the side facing the water inlet 4, and a certain gap is left between the lower end of the upper baffle 6 and the bottom of the first-stage filtering tank 1, the lower baffle 7 is located between the upper baffle 6 and the water outlet 5, the lower end of the lower baffle 7 is fixedly arranged on the bottom in the first-stage filtering tank 1, and the two sides of the upper baffle 6 and the lower baffle 7 are fixedly arranged on the inner wall of the first-stage filtering tank 1. A filter cartridge 8 is arranged at the water inlet 4 of the first-stage filtering tank 1. A cover plate 9 is arranged on the upper end of the upper baffle 6 and the lower baffle 7. Through the arrangement of the upper baffle 6 and the lower baffle 7, the water forms an up-and-down fluctuation running mode, the water enters from the top, the upper baffle 6 makes the water flow to the bottom of the filtering tank, and the lower baffle 7 makes the water flow upward from the bottom, and the suspended matter and the silt will be deposited to the bottom in the whole flowing process.

[0021] The water inlet 4 and the water outlet 5 on the second-stage filtering tank 2 are arranged on the upper and lower sides of the second filtering mechanism, the second filtering mechanism comprises a fixed plate 10 fixedly arranged in the second-stage filtering tank 2, the fixed plate 10 is annular and arranged in the horizontal direction, the outer periphery of the fixed plate 10 is fixedly arranged on the inner wall of the second-stage filtering tank 2, and a circle of upwardly extending triangular weir plates 11 is fixedly arranged on the inner wall of the fixed plate 10. A plurality of reinforcing plates 12 are fixedly arranged on the bottom of the fixed plate 10, and the reinforcing plates 12 are fixedly arranged on the inner wall of the second-stage filtering tank 2. Through the arrangement of the fixed plate 10 and the triangular weir plates 11, the water flows into the fixed plate 10 through the water inlet 4, the water flows upward and rolls, and overflows from the triangular weir plates 11, the blocking effect of the triangular weir plates 11 blocks most impurities in front of the triangular weir plates 11, and the water flowing through the triangular weir plates 11 is relatively clean, which achieves the purpose of secondary purification.

[0022] The three-stage filtering tank 3 is fixedly provided with a water outlet pipe 13 communicated with the water outlet 5 in the three-stage filtering tank 3, and a filter screen 14 is fixedly arranged at the end of the water outlet pipe 13 away from the water outlet 5. The three-stage filtering tank 3 is fixedly provided with a supporting plate 15 at the bottom for supporting the water outlet pipe 13. The filter screen 14 is arranged to filter the fine particles in the final fluid, and the physical multi-stage filtering of the raw water is completed.

[0023] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Other different forms of changes or variations can be made on the basis of the above description for those skilled in the art. Here, all the embodiments cannot be exhausted, and the obvious changes or variations of the description are still within the protection scope of the utility model.

Claims

1. A multi-stage raw water filtering apparatus, characterized by comprising: The application relates to a water purifying device, which comprises a first filter tank (1), a second filter tank (2) and a third filter tank (3) arranged in sequence along the water conveying direction, wherein the first filter tank (1), the second filter tank (2) and the third filter tank (3) are respectively provided with a water inlet (4) and a water outlet (5), the height of the water inlet (4) is higher than that of the water outlet (5), and the first filter tank (1), the second filter tank (2) and the third filter tank (3) are respectively provided with first filtering mechanism, second filtering mechanism and third filtering mechanism for filtering solid impurities in water.

2. The multi-stage raw water filtration device according to claim 1, characterized in that, The water inlet (4) and the water outlet (5) on the first filter tank (1) are respectively arranged on the left and right sides of the first filtering mechanism, the first filtering mechanism comprises an upper partition plate (6) and a lower partition plate (7) fixedly arranged in the filter tank, the upper partition plate (6) is located on the side facing the water inlet (4), a certain gap is left between the lower end of the upper partition plate (6) and the bottom of the first filter tank (1), the lower partition plate (7) is located between the upper partition plate (6) and the water outlet (5), the lower end of the lower partition plate (7) is fixedly arranged on the bottom in the first filter tank (1), and the two sides of the upper partition plate (6) and the lower partition plate (7) are fixedly arranged on the inner wall of the first filter tank (1).

3. The multi-stage raw water filtration device according to claim 2, wherein A filter cylinder (8) is arranged at the water inlet (4) of the first filter tank (1).

4. The multi-stage raw water filtration device of claim 2, wherein, The upper ends of the upper partition plate (6) and the lower partition plate (7) are provided with cover plates (9).

5. The multi-stage raw water filtration device of claim 1, wherein, The water inlet (4) and the water outlet (5) on the second filter tank (2) are arranged on the upper and lower sides of the second filtering mechanism, the second filtering mechanism comprises a fixed plate (10) fixedly arranged in the second filter tank (2), the fixed plate (10) is annular and arranged in the horizontal direction, the outer periphery of the fixed plate (10) is fixedly arranged on the inner wall of the second filter tank (2), and a ring of upwardly extending triangular weir plates (11) is fixedly arranged on the inner wall of the fixed plate (10).

6. The multi-stage raw water filtration device of claim 5, wherein, A plurality of reinforcing plates (12) are fixedly arranged on the inner wall of the second filter tank (2).

7. The multi-stage raw water filtration device of claim 1, wherein, An outlet pipe (13) is fixedly arranged in the third filter tank (3) and communicates with the water outlet (5) in the third filter tank (3), and a filter screen (14) is fixedly arranged at the end of the outlet pipe (13) away from the water outlet (5).

8. The multi-stage raw water filtration device of claim 7, wherein, A supporting plate (15) is fixedly arranged at the bottom of the third filter tank (3) and used for supporting the outlet pipe (13).

9. The multi-stage raw water filtration device of claim 1, wherein, The first filter tank (1), the second filter tank (2) and the third filter tank (3) are respectively provided with an emptying port (16).

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