Multi-stage sedimentation tank filtering device

Abstract

The utility model discloses a multistage sedimentation tank filtering device which comprises a sedimentation tank main body, the interior of the sedimentation tank main body is divided into a plurality of unit tanks, a partition wall and a filling filtering wall are arranged between every two adjacent unit tanks, a pull-out groove located above the partition wall is formed in the sedimentation tank main body, the pull-out groove is vertically arranged, the filling filtering wall is arranged in the pull-out groove, and the filling filtering wall is arranged in the pull-out groove. The filling and filtering wall is arranged on the partition wall. The method has the beneficial effects that the application range is wide, and the method is suitable for construction projects with large displacement such as deep foundation pit projects and municipal projects; the social benefit is good, the building construction wastewater is effectively filtered and precipitated, the probability that wastewater precipitates enter a municipal pipe network is reduced, and the positive effect on environmental protection is achieved; the device has economic benefits, can reduce the cleaning cost of the sedimentation tank, can be repeatedly used, and is extremely low in cost.

Description

Technical Field

[0001] This application belongs to the technical field of municipal sewage treatment, and specifically relates to a multi-stage sedimentation tank filtering device. Background Art

[0002] During the urban construction process, the wastewater and groundwater generated are usually discharged into the municipal pipe network after on-site sedimentation. However, the conventional sedimentation tank only has a water passage reserved at the upper part, and the water flowing into the sedimentation tank often does not have sufficient sedimentation time, resulting in wastewater with sediment flowing into the municipal pipeline, causing pipeline blockage and even river pollution. Utility Model Content

[0003] The purpose of this application is to provide a multi-stage sedimentation tank filtering device, which has the advantages of a large water passing area, being replaceable at any time, and reusable, and solves the problem of insufficient sewage sedimentation in the existing sedimentation tank.

[0004] The purpose of this application is achieved through the following technical solutions:

[0005] A multi-stage sedimentation tank filtering device includes a sedimentation tank main body. The interior of the sedimentation tank main body is divided into several unit tanks. There are partition walls and filling filter walls between adjacent two unit tanks. There is a pull-out groove above the partition wall in the sedimentation tank main body. The pull-out groove is vertically arranged. The filling filter wall is arranged in the pull-out groove and is arranged on the partition wall.

[0006] Further, the sedimentation tank main body is of a reinforced concrete structure.

[0007] Further, the interior of the sedimentation tank main body is divided into at least three-level unit tanks.

[0008] Further, the sedimentation tank main body is provided with a water inlet and a water outlet. The water inlet is communicated with the first-level unit tank, and the water outlet is communicated with the last-level unit tank.

[0009] Further, the water inlet and the water outlet are respectively located at two diagonals of the sedimentation tank main body.

[0010] Further, the filling filter wall includes a wall skeleton. A wire mesh is wrapped on the wall skeleton. There is a geotextile layer in the wire mesh, and there is a gravel filling in the geotextile layer.

[0011] Further, the wall skeleton is a cuboid frame welded by steel bars or steel pipes, and there are lifting rings welded on the upper part of the wall skeleton.

[0012] Further, the wire mesh is a steel wire mesh.

[0013] Further, the geotextile layer is at least one layer.

[0014] Further, the gravel filler is graded crushed stone or quartz stone.

[0015] Advantages of this application:

[0016] (1) Wide application range, applicable to construction projects with large drainage volumes such as deep foundation pit projects and municipal projects.

[0017] (2) Good social benefits, ensuring effective filtration and sedimentation of construction wastewater, reducing the probability of wastewater sediment entering the municipal pipe network, and playing a positive role in environmental protection.

[0018] (3) Having economic benefits, capable of reducing the cost of sedimentation tank cleaning, and the device can be reused repeatedly with extremely low costs.

[0019] The main solution of this application and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in this application; and in this application, (each non-conflicting alternative) can be freely combined with each other and with other alternatives. Those skilled in the art can understand that there are multiple combinations based on the prior art and common general knowledge after understanding this solution, all of which are the technical solutions to be protected in this application and will not be exhaustively listed here. Description of the Drawings

[0020] Figure 1 is the main structural view (sectional view) of this application.

[0021] Figure 2 is the plan view of the main structure of the sedimentation tank of this application.

[0022] Figure 3 is the main structural view (sectional view) of the filling and filtering wall of this application.

[0023] Figure 4 is the side view (sectional view) of the filling and filtering wall of this application.

[0024] In the figure: 1 - sedimentation tank main body, 2 - unit tank, 3 - water inlet, 4 - water outlet, 5 - partition wall, 6 - filling and filtering wall, 7 - pull-out groove, 8 - wall skeleton, 9 - partition net, 10 - lifting ring, 11 - geotextile layer, 12 - gravel filler. Detailed Embodiments

[0025] The following further describes this application in combination with specific embodiments and the drawings.

[0026] Refer to Figure 1 and Figure 2 shown. A multi-stage sedimentation tank filtering device, which has advantages such as a large water passing area, being replaceable at any time, and reusable. It includes a sedimentation tank main body 1, a unit tank 2, a water inlet 3, a water outlet 4, a partition wall 5, a filling and filtering wall 6, and a pull-out groove 7.

[0027] The main body 1 of the sedimentation tank is a reinforced concrete structure with an open top, forming a space for storing water. The interior of the main body 1 of the sedimentation tank is divided into several unit tanks 2, specifically divided into at least three levels of unit tanks 2, and the adjacent two unit tanks 2 are interconnected. The multi-level unit tanks 2 are used to achieve the step-by-step filtration and sedimentation of sewage.

[0028] The main body 1 of the sedimentation tank is provided with a water inlet 3 and a water outlet 4. The water inlet 3 is connected to the upper part of the first-level unit tank 2, and the water outlet 4 is connected to the upper part of the last-level unit tank 2. Then, the sewage enters the main body 1 of the sedimentation tank through the water inlet 3, and after being filtered and sedimented, it is discharged through the water outlet 4. The water inlet 3 and the water outlet 4 are respectively located at two diagonals of the main body 1 of the sedimentation tank, which is beneficial to increasing the flow path of the sewage and improving the sedimentation effect.

[0029] A partition wall 5 and a filling and filtering wall 6 are provided between the adjacent two unit tanks 2. The partition wall 5 is also a reinforced concrete structure, located below to completely block the two unit tanks 2. The filling and filtering wall 6 is a wall formed by filling a filtering material inside a wire mesh, located above to allow the sewage to pass through, and is used to filter and sediment the sewage.

[0030] The filling and filtering wall 6 is arranged on the partition wall 5, and the partition wall 5 is used to support the filling and filtering wall 6. A pull-out groove 7 is provided in the main body 1 of the sedimentation tank above the partition wall 5. The pull-out groove 7 is arranged vertically. The filling and filtering wall 6 is arranged in the pull-out groove 7, and the pull-out groove 7 is also used to guide and limit the filling and filtering wall 6, and at the same time, it is convenient to replace the filling and filtering wall 6.

[0031] Reference Figure 3 and Figure 4 As shown, the filling and filtering wall 6 includes a wall skeleton 8, a partition net 9, a lifting ring 10, a geotextile layer 11, and a gravel filler 12.

[0032] The wall skeleton 8 is a cuboid frame welded by steel bars or steel pipes, used to shape and support the overall structure. Lifting rings 10 are welded on the upper part of the wall skeleton 8, and two lifting rings 10 are arranged on each side, ensuring that the filling and filtering wall 6 can be replaced by a crane at any time.

[0033] The wall skeleton 8 is wrapped with a partition net 9. The partition net 9 is a wire mesh, located on the outermost layer to filter the sewage, mainly used to wrap and limit the internal filling materials. A geotextile layer 11 is arranged inside the partition net 9. The geotextile layer 11 is at least one layer, located in the middle layer to filter the sewage and also used to wrap and limit the internal filling materials.

[0034] The geotextile layer 11 is provided with a gravel filler 12, and the gravel filler 12 is graded crushed stone or quartzite. The gravel filler 12 is located in the innermost layer for filtering sewage. The gaps formed between the gravels allow the sewage to pass through, while impurities cannot pass through the gaps for sedimentation filtration.

[0035] The foregoing basic example of the present application and its various further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in the present application. In the solution of the present application, each selected example can be arbitrarily combined with any basic example and selected example.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-stage sedimentation tank filtration device, comprising a sedimentation tank main body (1), characterized in that: The interior of the sedimentation tank main body (1) is divided into several unit tanks (2). A partition wall (5) and a filling and filtering wall (6) are arranged between two adjacent unit tanks (2). A drawable groove (7) is arranged above the partition wall (5) in the sedimentation tank main body (1). The drawable groove (7) is vertically arranged, and the filling and filtering wall (6) is arranged in the drawable groove (7). The filling and filtering wall (6) is arranged on the partition wall (5).

2. The multi-stage sedimentation tank filtration device according to claim 1, characterized in that: The sedimentation tank main body (1) is of a reinforced concrete structure.

3. The multi-stage sedimentation tank filtration device according to claim 1 or 2, characterized in that: The interior of the sedimentation tank main body (1) is divided into unit tanks (2) with at least three levels.

4. The multi-stage sedimentation tank filtration device according to claim 1, characterized in that: An inlet (3) and an outlet (4) are arranged on the sedimentation tank main body (1). The inlet (3) is communicated with the unit tank (2) of the first level, and the outlet (4) is communicated with the unit tank (2) of the last level.

5. The multi-stage sedimentation tank filtration device according to claim 4, wherein: The inlet (3) and the outlet (4) are respectively located at two diagonals of the sedimentation tank main body (1).

6. The multi-stage sedimentation tank filtration device according to claim 1, wherein: The filling and filtering wall (6) includes a wall body framework (8). A partition net (9) is wrapped on the wall body framework (8). A geotextile layer (11) is arranged in the partition net (9), and a gravel filling (12) is arranged in the geotextile layer (11).

7. The multi-stage sedimentation tank filtration device according to claim 6, characterized in that: The wall body framework (8) is a cuboid framework welded by steel bars or steel pipes. A lifting ring (10) is welded on the upper part of the wall body framework (8).

8. The multi-stage sedimentation tank filtration device according to claim 6, wherein: The partition net (9) is a wire mesh.

9. The multi-stage sedimentation tank filtration device according to claim 6, characterized in that: The geotextile layer (11) is at least one layer.

10. The multi-stage sedimentation tank filtration device according to claim 6, characterized in that: The gravel filling (12) is graded broken stone or quartz stone.

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