Buried sewage treatment filter tank

Abstract

The utility model discloses a buried sewage treatment filter tank, which is characterized in that a communication port is arranged between a grating tank and an adjusting tank, and the grating tank is communicated with a water inlet pipe; a grid is mounted in the grid pool and is formed by arranging a plurality of grid plates, and a filter tank is formed by the adjacent grid plates; one side of the grating is a high side and is hinged to the upper edge side of one side of the grating pool, and the other side of the grating is a bottom side, is attached to and supported at the bottom of the grating pool and is used for separating the communicating position of the water inlet pipe from the communicating opening. The grating is used for intercepting, the high side of the grating is of a hinged structure, the low side of the grating is the free end, and when excessive impurities are formed through interception of the grating, the grating can be turned over by lifting the free side of the grating, the corresponding low side of the grating is changed into the high side, the grating is moved out of the liquid level, the impurities on the grating are removed, and then the grating returns to the original position; and the high interception efficiency of the grille is kept.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment equipment, and in particular relates to underground sewage treatment filter tanks. Background Technology

[0002] The underground horizontal tank sewage treatment unit mainly consists of the horizontal tank body equipment, process pipelines, dosing device, air backwashing system, electrical control system, etc.

[0003] The horizontal tank unit utilizes an anaerobic-aerobic process to treat domestic sewage, divided into an anaerobic section (Section A): Under anoxic conditions, anaerobic microorganisms decompose organic matter into smaller organic molecules and perform denitrification, reducing nitrates to nitrogen gas, thus achieving denitrification. The aerobic section (Section O): Under sufficient oxygen conditions, aerobic microorganisms further degrade organic matter and convert ammonia nitrogen into nitrates through nitrification.

[0004] Domestic sewage contains not only various organic polymers but also solid impurities and plastics. Correspondingly, the front end of the horizontal tank equipment has a filtration tank, which mainly consists of a bar screen and a regulating tank. The bar screen is adjacent to the regulating tank. The bar screen is equipped with bar screens to filter large impurities, while the bottom uses packing material to adsorb and filter suspended solids in the sewage, effectively reducing the concentration of suspended solids in the effluent. However, the existing bar screens in the bar screen are fixed structures and submerged below the sewage surface, making it difficult to remove impurities intercepted on the bar screen, thus affecting filtration efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an underground sewage treatment filter tank to solve the problem that impurities intercepted by the filter tank's bar screen are not easily removed, thus affecting the filtration efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] An underground sewage treatment filtration tank includes an underground concrete tank body, with a partition wall in the middle of the tank body dividing the tank body into a bar screen tank and a regulating tank; there is a connection between the bar screen tank and the regulating tank, and the bar screen tank is connected to an inlet pipe.

[0008] The grid pool is equipped with a grid, which is composed of multiple grid plates arranged in parallel and fixed by connecting columns. The adjacent grid plates form a filter groove.

[0009] One side of the grating is the high side, which is hinged to the upper edge of one side of the grating pool, and the other side is the bottom side, which is attached to and supported at the bottom of the grating pool, and is used to form a partition between the water inlet pipe connection position and the connection opening.

[0010] Furthermore, the grid has a bucket-shaped structure, with straight sections on both sides and an arc-shaped section in the center. Side plates are fixed to the side plates of the grid. The lower side of the grid is located below the inlet pipe and is supported against the side wall of the grid pool. The grid plate corresponding to the lower side of the grid is fixed to the same first end plate, and the lower side of the grid is supported against the side wall of the grid pool by the first end plate. A support roller is installed on the end side of the first end plate, and the first end plate is provided with an ear plate and has a shaft hole for the rollers of the support roller to rotate.

[0011] Furthermore, the upper side of the grid plate corresponding to the grid is fixed to the same rotating shaft, and a bushing corresponding to the rotating shaft is installed on the upper edge of the grid pool.

[0012] Furthermore, a collar is fixed at the center of the first end plate and a rope is connected to it.

[0013] This utility model has the following beneficial effects: the connecting port is located at the bottom of the bar screen pool, and the inlet pipe connecting point is located at the top of the bar screen pool. The bar screen intercepts the water in the middle. The high side of the bar screen is a hinged structure, and the low side is a free end. When the bar screen intercepts too many impurities, the bar screen can be flipped by lifting the free side of the bar screen. The corresponding low side of the bar screen becomes the high side and moves out of the liquid surface, where the impurities on the bar screen are removed. Then the bar screen is put back into place, maintaining the high interception efficiency of the bar screen. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 : Schematic diagram of the side structure of the pool body of this utility model.

[0016] Figure 2 : A top view of the structure of the pool body of this utility model.

[0017] Figure 3 : A schematic diagram of the structure of the bar grid pool of this utility model.

[0018] Figure 4 : A schematic diagram of the structure of this utility model in the flipped state of the grille.

[0019] Figure 5 : Schematic diagram of the grid and its partially exploded structure of this utility model.

[0020] The components represented by each number in the attached diagram are listed below: 1. Grille pool, 2. Regulating pool, 11. Connecting port, 12. Inlet pipe, 3. Grille, 31. Grid plate, 32. Connecting column, 33. Side plate, 4. First end plate, 41. Support roller, 42. Ear plate, 5. Rotating shaft, 51. Bushing, 43. Collar, 6. Rope. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figures 1-3 As shown: The underground sewage treatment filtration tank includes an underground concrete tank body. A partition wall is set in the middle of the tank body, dividing the tank body into a bar screen tank 1 and a regulating tank 2. There is a connection port 11 between the bar screen tank 1 and the regulating tank 2, and the bar screen tank 1 is connected to an inlet pipe 12. The tank body is buried underground, with the upper side being the open side and flush with the ground. The overall structure is square. The regulating tank has a larger volume and is used to add flocculants, etc. The regulating tank is also equipped with a lift pump, which transfers the coarsely filtered sewage through pipelines to the underground horizontal tank equipment on the side for anaerobic and aerobic fermentation and degradation.

[0023] A bar screen is used to filter large impurities and has a narrow, rectangular structure. To facilitate the transfer of wastewater from the bar screen to the equalization tank, the bottom of the bar screen also has a filling layer to elevate the connection port.

[0024] A grid 3 is installed in the grid pool 1. The grid 3 is composed of multiple grid plates 31 arranged in parallel and fixed by connecting columns 32. The adjacent grid plates 31 form a filter groove. The grid plates are strip-shaped structures. The connecting columns penetrate each grid plate longitudinally and weld each grid plate together, leaving a filter groove with a gap of 30mm.

[0025] One side of the grating 3 is the high side, which is hinged to the upper edge of one side of the grating pool 1, and the other side is the bottom side, which is attached to and supported at the bottom of the grating pool 1, and is used to form a partition between the inlet pipe 12 and the opening of the connecting port 11.

[0026] The connecting port is located at the bottom of the bar screen, and the inlet pipe is located at the top of the bar screen. The bar screen intercepts water in both directions. The high side of the bar screen is a hinged structure, and the low side is a free end. When too many impurities are trapped by the bar screen, the bar screen can be flipped by lifting the free side. The corresponding low side of the bar screen becomes the high side and moves out of the liquid surface to remove the impurities. Then the bar screen is put back into place to maintain its high interception efficiency.

[0027] like Figures 4-5 As shown: The grid 3 has a bucket-shaped structure, with straight sections on both sides and an arc-shaped section in the center of the corresponding grid plate 31. Side plates 33 are fixed to the side grid plates corresponding to the grid 3. The grid is recessed at the position corresponding to the arc-shaped section, and after being assembled with the side plates, it forms a bucket-shaped trough, which helps to prevent impurities from slipping when the grid is turned over.

[0028] The lower side of the screen 3 is located below the inlet pipe 12 and is supported against the side wall of the screen pool 1. The corresponding screen plate 31 on the lower side of the screen 3 is fixed to the same first end plate 4, and the lower side of the screen 3 is supported against the side wall of the screen pool 1 by the first end plate 4. The weight of the screen itself makes the first end plate adhere to the side wall of the screen pool, forming a complete partition. A support roller 41 is installed on the end side of the first end plate 4. The first end plate 4 is provided with an ear plate 42 and has a shaft hole for the roller of the support roller 41 to rotate. This is used for easy removal from the first end plate. When flipping the screen, the rotation of the support roller reduces friction. The upper side of the screen plate 31 corresponding to the screen 3 is fixed to the same rotating shaft 5, and a bushing 51 corresponding to the end of the rotating shaft 5 is installed on the upper edge of the screen pool 1.

[0029] A collar 43 is fixed at the center of the first end plate 4, and a rope 6 is connected to it. This is used to lift the grid and flip it over.

[0030] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A buried sewage treatment filter tank, characterized in that: It includes an underground concrete pool, with a partition wall in the middle of the pool to divide the pool into a grid pool (1) and a regulating pool (2); there is a connecting port (11) between the grid pool (1) and the regulating pool (2), and the grid pool (1) is connected to an inlet pipe (12). The grid pool (1) is equipped with a grid (3), which is composed of multiple grid plates (31) arranged in a row. The multiple grid plates (31) are parallel to each other and fixed by connecting columns (32). The adjacent grid plates (31) form a filter groove. The grille (3) has a high side on one side and is hinged to the upper edge of the grille pool (1) on the other side. It is a bottom side that is attached to and supported at the bottom of the grille pool (1) to form a partition between the inlet pipe (12) and the opening of the connecting port (11).

2. The buried sewage treatment filter tank according to claim 1, characterized in that: The grid (3) has a bucket-shaped structure, with straight sections on both sides of the corresponding grid plate (31) and an arc-shaped section in the center. The side grid plates (33) corresponding to the grid (3) are fixed with side plates (33).

3. The buried sewage treatment filter tank according to claim 2, characterized in that: The lower side of the grille (3) is located below the inlet pipe (12) and is supported against the side wall of the grille pool (1). The corresponding grid plate (31) on the lower side of the grille (3) is fixed to the same first end plate (4). The lower side of the grille (3) is supported against the side wall of the grille pool (1) by the first end plate (4).

4. The buried sewage treatment filter tank according to claim 3, characterized in that: A support roller (41) is installed on the end side of the first end plate (4). The first end plate (4) is provided with an ear plate (42) and has a shaft hole for the roller of the support roller (41) to rotate.

5. The buried sewage treatment filter tank according to claim 1, characterized in that: The upper side of the grid plate (31) corresponding to the grid (3) is fixed to the same rotating shaft (5), and the upper side of the grid pool (1) is equipped with a bushing (51) corresponding to the end of the rotating shaft (5).

6. The underground sewage treatment filter tank according to claim 3, characterized in that: A collar (43) is fixed at the center of the first end plate (4) and a rope (6) is connected to it.

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