A sewage double filtration device

Abstract

The utility model relates to a filter device belongs to sewage filter technical field, specifically a sewage double filtration's device, including the shell, the shell is fixedly connected with the water inlet pipe and the water outlet pipe, be equipped with two threaded rods in the shell, in the utility model, through the cooperation of coarse grid and fine grid filtration, coarse grid is installed perpendicularly in the filter end, adopts larger interval grid bar, intercepts branch, plastic bottle and so on large -sized sundries, fine grid is installed obliquely in the coarse grid downstream, adopts smaller interval grid bar, retains silt, chippings and so on small and medium -sized particle, has improved the filtration effect of the device greatly, and coarse grid and fine grid are assembled as independent unit through the sleeve pipe and threaded rod, can be individually disassembled and replaced, and all metal components of the device adopt stainless steel material, improve the service life of the device, guide the water flow to flow through double -stage grid gently through the design of slope, reduces the secondary blockage caused by turbulence.

Description

Technical Field

[0001] This utility model relates to the field of wastewater filtration technology, specifically a wastewater dual filtration device. Background Technology

[0002] Add a filter structure or device to the sewage inspection well (cellar) to intercept and separate solid debris (such as plastic, hair, fiber, sand, etc.) in the sewage, and prevent them from entering the downstream pipeline and causing blockage or damage to the equipment.

[0003] Traditional sewage silo filtration systems typically use single-layer bar screens to filter debris. Under heavy rain or high flow conditions, the bar screens are prone to clogging due to debris accumulation, requiring frequent manual cleaning. Furthermore, metal bar screens are susceptible to rust and deformation in humid and corrosive environments, posing a risk of breakage with prolonged use.

[0004] Based on this, the present invention proposes a device for dual filtration of sewage. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model proposes a dual-stage wastewater filtration device. This device utilizes a coarse-fine dual-stage screen for synergistic filtration. The coarse screen is installed vertically at the filter end, employing a larger spacing between the screen bars to intercept large debris such as tree branches and plastic bottles. The fine screen is installed at an angle downstream of the coarse screen, employing a smaller spacing between the screen bars to trap small and medium-sized particles such as silt and debris. The coarse and fine screens are assembled into independent units using sleeves and bolts, allowing for individual disassembly and replacement. Furthermore, all metal components of this device are made of stainless steel, thus improving its service life.

[0006] The technical solution to achieve the purpose of this utility model is: a wastewater dual filtration device, including a housing, an inlet pipe and an outlet pipe fixedly connected to the housing, two threaded rods provided inside the housing, and multiple nuts threadedly connected to the threaded rods, and further including;

[0007] A coarse grid, comprising a steel plate and a sleeve, wherein a plurality of sleeves are mounted on a threaded rod and a plurality of steel plates are mounted on a threaded rod;

[0008] A fine grid, comprising a steel plate and a sleeve, wherein multiple sleeves are fitted onto a threaded rod and multiple steel plates are fitted onto the threaded rod.

[0009] Preferably, multiple through holes are formed on the multiple steel plates one and multiple steel plates two respectively.

[0010] Preferably, multiple through holes are provided on the multiple steel plates one and multiple steel plates two, and multiple iron rods are rotatably connected in the multiple through holes two.

[0011] Preferably, each of the multiple iron climbers is provided with a multiple iron pad, and the multiple iron climbers are fixedly connected to the outer shell by expansion bolts and iron pads.

[0012] Preferably, a cover plate one and a cover plate two are movably inserted into the outer shell.

[0013] Preferably, the outer casing has two ramps.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] Firstly, in this utility model, the coarse and fine screens work together to filter. The coarse screen is installed vertically at the filter end and uses a larger spacing of the screen bars to intercept large debris such as tree branches and plastic bottles. The fine screen is installed at an angle downstream of the coarse screen and uses a smaller spacing of the screen bars to intercept small and medium-sized particles such as mud and debris, which greatly improves the filtration effect of the device.

[0016] Secondly, in this utility model, the coarse screen and the fine screen are assembled into independent units by sleeves and threaded rods, which can be disassembled and replaced separately. Moreover, all metal components of the device are made of stainless steel, which improves the service life of the device. The slope design guides the water flow to flow smoothly through the double-stage screen, reducing secondary blockage caused by turbulence. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the grille installation structure in this utility model;

[0020] Figure 3 This is a front / side view structural diagram of the coarse and fine grilles in this utility model;

[0021] Figure 4 This is a structural schematic diagram of the iron plate and iron pad in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Steel plate one; 2. Steel plate two; 3. Expansion bolt; 4. Sleeve one; 5. Sleeve two; 6. Threaded rod; 7. Nut; 8. Iron plate; 9. Iron washer; 10. Coarse grating; 11. Fine grating; 12. Inlet pipe; 13. Outlet pipe; 14. Cover plate one; 15. Cover plate two; 16. Slope; 17. Outer shell; 18. Through hole one; 19. Through hole two. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model provides an improved wastewater dual filtration device. The technical solution of this utility model is as follows:

[0026] like Figures 1-4 As shown, a wastewater dual filtration device includes a housing 17, an inlet pipe 12 and an outlet pipe 13 fixedly connected to the housing 17, two threaded rods 6 inside the housing 17, and multiple nuts 7 threadedly connected to the threaded rods 6, and also includes;

[0027] The coarse grid 10 includes steel plate 1 and sleeve 4. The steel plate 1 is arranged in a linear array on the threaded rod 6. The sleeve 4 is located between two adjacent steel plates 1. Multiple sleeves 4 are sleeved on the threaded rod 6, and multiple steel plates 1 are sleeved on the threaded rod 6.

[0028] The fine grid 11 includes steel plate 2 and sleeve 5. The steel plate 2 is arranged in a linear array on the threaded rod 6. The sleeve 5 is located between two adjacent steel plates 2. Multiple sleeves 2 5 are fitted on the threaded rod 6, and multiple steel plates 2 are fitted on the threaded rod 6. All metal components of this device are made of stainless steel, which improves the service life of the device. The coarse grid 10 and the fine grid 11 are assembled into independent units by sleeve 1 4, sleeve 2 5 and threaded rod 6, and can be disassembled and replaced individually. The length of sleeve 1 4 is greater than the length of sleeve 2 5.

[0029] Furthermore, such as Figure 3 As shown, multiple through holes 18 are respectively opened on multiple steel plates 1 and multiple steel plates 2. The diameter of the through holes 18 is slightly larger than the diameter of the threaded rod 6, which facilitates the installation or disassembly of steel plates 1 and steel plates 2.

[0030] Furthermore, such as Figure 3 As shown, multiple through holes 19 are respectively opened on multiple steel plates 1 and multiple steel plates 2. Multiple iron plates 8 are rotatably connected in the multiple through holes 19. The iron plates 8 are located on the top of steel plates 1 and steel plates 2 and are used for the installation of steel plates 1 and steel plates 2.

[0031] Furthermore, such as Figures 2-4 As shown, multiple iron plates 8 are provided with multiple iron pads 9 respectively. The multiple iron plates 8 are fixedly connected to the outer shell 17 by expansion bolts 3 and iron pads 9. With the cooperation of iron pads 9, the connection between the iron plates 8 and the inner wall of the outer shell 17 is more secure.

[0032] Furthermore, such as Figure 1 As shown, cover plate 14 and cover plate 15 are movably inserted into the outer shell 17. Cover plate 14 is a manhole cover plate, and cover plate 15 is a reinforced concrete cover plate. When it is necessary to replace the coarse grid 10 or the fine grid 11, cover plate 15 can be pulled out from the outer shell 17 to disassemble and replace the coarse grid 10 or the fine grid 11.

[0033] Furthermore, such as Figure 1 As shown, the outer casing 17 has two ramps 16 inside. The design of the ramps 16 guides the water flow to flow smoothly through the dual-stage grid, reducing secondary blockage caused by turbulence.

[0034] The specific working method is as follows: Remove the cover plate 15, place the coarse screen 10 into the outer shell 17, so that the coarse screen 10 is located at the end of the outer shell 17 near the water inlet pipe 12. Then, rotate the iron plate 8 on the coarse screen 10 to fit against the inner wall of the outer shell 17, place the iron pad 9, and drive in the expansion bolt 3 to complete the fixation of the coarse screen 10. Next, place the fine screen 11, so that the fine screen 11 is located at the end of the outer shell 17 near the water outlet pipe 13, and place the fine screen 11 at an angle. Repeat the above operation to fix the fine screen 11. Through the synergistic filtration of the coarse screen 10 and the fine screen 11, the coarse screen 10 is installed vertically at the filter end, using a larger spacing of the grid bars to intercept large debris such as tree branches and plastic bottles. The fine screen 11 is installed at an angle downstream of the coarse screen 10, using a smaller spacing of the grid bars to intercept small and medium-sized particles such as mud and debris, which greatly improves the filtration effect of the device.

[0035] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A sewage double filtration device, comprising a shell (17), a water inlet pipe (12) and a water outlet pipe (13) are fixedly connected on the shell (17), characterized in that: The outer casing (17) is provided with two threaded rods (6), and multiple nuts (7) are threadedly connected to the threaded rods (6), and also includes; Coarse grid (10), the coarse grid (10) includes a steel plate (1) and a sleeve (4), a plurality of sleeves (4) are sleeved on a threaded rod (6), and a plurality of steel plates (1) are sleeved on a threaded rod (6); Fine grid (11), the fine grid (11) includes steel plate two (2) and sleeve two (5), a plurality of sleeve two (5) are sleeved on threaded rod (6), and a plurality of steel plate two (2) are sleeved on threaded rod (6).

2. A device for double filtration of sewage water according to claim 1, characterized in that: Multiple through holes (18) are respectively provided on multiple steel plates (1) and multiple steel plates (2).

3. The wastewater dual filtration device according to claim 1, characterized in that: Multiple through holes (19) are respectively opened on multiple steel plates one (1) and multiple steel plates two (2), and multiple iron bars (8) are rotatably connected in the multiple through holes two (19).

4. The wastewater dual filtration device according to claim 3, characterized in that: Each of the multiple iron climbing members (8) is provided with multiple iron pads (9), and the multiple iron climbing members (8) are fixedly connected to the outer shell (17) by expansion bolts (3) and iron pads (9).

5. A wastewater dual filtration device according to any one of claims 1-4, characterized in that: Cover plate one (14) and cover plate two (15) are movably inserted into the outer shell (17).

6. The wastewater dual filtration device according to claim 1, characterized in that: The outer shell (17) has two ramps (16).

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