Sedimentation tank for sewage treatment

Abstract

The utility model discloses a sedimentation tank for sewage treatment. The sedimentation tank comprises a sedimentation tank body for sewage treatment, the settling zone is arranged at the inner bottom of the settling tank body; the material pushing sweeping and scraping sheet is movably arranged at the top in the sedimentation tank body; and the scum temporary storage box is arranged at the top in the sedimentation tank body and is positioned on the side surface of the material pushing sweeping and scraping sheet. The utility model has the beneficial effects that the technical scheme provided by the utility model can be used for effectively moving suspended matters at all places of the top of the sedimentation tank to the side surface of the temporary scum storage box, and a large amount of suspended matters and impurities are moved into the temporary scum storage box for storage through the movement and matching of the temporary scum storage box and the material pushing sweeping and scraping sheet; and the effect and efficiency of collecting and storing suspended matter impurities are improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a sedimentation tank for wastewater treatment. Background Technology

[0002] A sedimentation tank is a structure that uses sedimentation to remove suspended solids from water; it is a type of water purification equipment. It typically separates suspended solids and precipitates from water through natural sedimentation.

[0003] In existing technologies, treating impurities in wastewater requires prolonged settling to allow sediment to move to the bottom of the sedimentation tank and suspended solids to move to the surface. Traditional methods for removing suspended solids typically involve catching them. However, this method involves a large contact area between the catching tool and the liquid surface, which can easily cause movement within the sedimentation tank, allowing suspended solids at the top to move to the bottom, resulting in poor catching efficiency. Furthermore, the quantity and area of ​​suspended solids caught each time are relatively small, necessitating extended operation times to complete the removal, leading to high costs and low efficiency. Utility Model Content

[0004] The main purpose of this invention is to propose a sedimentation tank for sewage treatment, which aims to solve the problems of existing sedimentation tanks for sewage treatment.

[0005] To address the aforementioned problems, this utility model proposes a sedimentation tank for wastewater treatment, comprising: a sedimentation tank body for wastewater treatment; a sedimentation zone disposed at the bottom of the sedimentation tank body; a pusher and scraper movably disposed at the top of the sedimentation tank body; and a scum storage box disposed at the top of the sedimentation tank body and located on the side of the pusher and scraper, the bottom of the scum storage box extending below the liquid surface of the sedimentation tank body.

[0006] In one embodiment, the bottom of the sedimentation tank body is provided with an upwardly protruding top plate, which is disposed between two sedimentation zones, and the two side walls of the top plate are constructed as inclined surfaces.

[0007] In one embodiment, an inclined surface is constructed on the inner bottom wall of the sedimentation tank body on both sides of the top plate, close to the sedimentation zone, and the height of the inclined surface gradually decreases from the inner side wall of the sedimentation tank body to the sedimentation zone to form a slope.

[0008] In one embodiment, the sedimentation zone is configured as a concave hemispherical shape that is wider at the top and narrower at the bottom, and the sedimentation zone has a discharge port at the center, which is connected to a pre-embedded pipe.

[0009] In one embodiment, the scraping portion of the pushing scraper blade has a plurality of plastic scrapers, and upper hooks are detachably mounted at both ends of the top of the pushing scraper blade by screws, the upper hooks being suspended on a connecting rod.

[0010] The left and right ends of the connecting rod are installed on the inner side of the horizontal slider, and the outer side of the horizontal slider is connected to a push handle. The horizontal slider is slidably connected inside the horizontal slot, which is opened on the side wall of the sedimentation tank body and located above the liquid surface of the sedimentation tank body.

[0011] In one embodiment, the bottom of the scum storage box is provided with multiple flow guides, and the scum storage box is configured as a semi-cylindrical shape.

[0012] In one embodiment, the two ends of the scum storage box extend from the corresponding horizontal slots and are respectively eccentrically installed on the corresponding connecting blocks. A rotating handle is also eccentrically installed on the connecting block, and the rotating handle is located on the outside of the sedimentation tank body.

[0013] Beneficial effects: The technical solution of this utility model can effectively move suspended solids located at various places on the top of the sedimentation tank to the side of the scum storage box. Through the movement and cooperation of the scum storage box and the pusher scraper, a large amount of suspended impurities are moved into the interior of the scum storage box for storage, thereby improving the effect and efficiency of collecting and storing suspended impurities. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the sedimentation tank of this utility model from the first perspective;

[0016] Figure 2 This is a utility model Figure 1 Enlarged view of region A in the middle;

[0017] Figure 3 This is a two-dimensional structural diagram of the sedimentation tank of this utility model from the second perspective;

[0018] Figure 4 This is a three-dimensional structural diagram of the sedimentation tank of this utility model.

[0019] Figure 5 This is a cross-sectional structural schematic diagram of the sedimentation tank of this utility model;

[0020] Figure 6 This is a utility model Figure 5 Enlarged view of region B in the middle;

[0021] The annotations in the attached figures are explained as follows:

[0022] 10. Sedimentation tank body; 101. Top plate; 102. Inclined surface; 20. Sedimentation zone; 201. Discharge port; 30. Pusher scraper; 301. Upper hook; 302. Connecting rod; 303. Horizontal slider; 304. Horizontal slot; 305. Push handle; 40. Scum storage box; 401. Guide port; 402. Connecting block; 403. Rotating handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] This utility model proposes a sedimentation tank for sewage treatment, which mainly includes the following components: a sedimentation tank body 10 for sewage treatment; a sedimentation zone 20 disposed at the bottom of the sedimentation tank body 10; a pusher and scraper 30 movably disposed at the top of the sedimentation tank body 10; and a scum storage box 40 rotatably disposed on one side of the top of the sedimentation tank body 10, the bottom of which is located below the liquid surface of the sedimentation tank body 10.

[0026] Specifically, with specific reference to Figure 1 , Figure 4 and Figure 5 The wastewater treatment sedimentation tank mainly consists of a sedimentation tank body 10 and an internal sedimentation zone 20. The sedimentation tank body 10 is the area where sediments and suspended solids in the wastewater are settled and removed. The settled sediments will fall into the sedimentation zone 20 due to their own weight. In this embodiment, the sedimentation zone 20 is optimized and improved as follows: Specifically, the sedimentation zone 20 is designed as a concave hemispherical structure that is wider at the top and narrower at the bottom, which ensures that sediments are not easily accumulated on the inner wall of the sedimentation zone 20, and most of the sediments will fall to the inner bottom of the sedimentation zone 20.

[0027] For details, please refer to the following: Figure 1 , Figures 3 to 6 The bottom of the pusher scraper 30 is provided with a scraping part (unmarked), in which the lower part of the brush part extends below the liquid surface of the sedimentation tank, and the upper part of the brush part protrudes above the liquid surface. The movement of the pusher scraper 30 concentrates and pushes the suspended solids to ensure that the suspended solids can be scraped and moved into the scum storage box 40. This improves the collection efficiency of suspended solids and is easy to operate. When pushing the suspended solids, since the scraping part is mainly composed of scraping hairs, the scraping hairs cause less disturbance to the water and are less likely to disturb the liquid at the bottom of the sedimentation tank.

[0028] When implementing specific operations, refer to Figures 1 to 6 The scum storage box 40 can be manually rotated by the operator, causing one side of the opening of the scum storage box 40 to rotate below the liquid surface of the sedimentation tank, thereby collecting suspended solids that have moved to the opening side of the scum storage box 40. For the collection of suspended solids, the scum storage box 40 can be rotated to an inclined state to match the operation of the pusher and scraper 30, similar to the use of a broom and a dustpan, which significantly improves the collection of suspended solids. Compared with the traditional structure, the scum storage box 40 is also designed to flexibly rotate in both directions, which also has a good collection effect on suspended impurities located at the inner edge of the sedimentation tank body 10.

[0029] In this embodiment, as Figure 4 and Figure 5 As shown, the bottom of the sedimentation tank body 10 is provided with an upwardly protruding top plate 101. The top plate 101 is located between two sedimentation zones 20. The two side walls of the top plate 101 are constructed as inclined surfaces. This design ensures that the sewage sediment between the two sedimentation zones 20 will slide down the inclined surfaces more easily into the interior of the sedimentation zone 20 for storage during the falling process, thus avoiding the accumulation of sediment between the two sedimentation zones 20.

[0030] In this embodiment, as Figure 4 and Figure 5 As shown, the sedimentation tank body 10 has inclined surfaces 102 on both sides of the sedimentation zone 20. Through the design of the inclined surfaces 102, sediment falling onto the inclined surfaces 102 can easily slide into the sedimentation zone 20 for storage. Of course, with... Figure 4As shown, the inclined surface 102 can also be understood as being located both on the left and right inclined surfaces of the top outlet plate 101 and on both the front and rear sides of the sedimentation zone 20. In this case, the two inclined surfaces of the top outlet plate 101 are located in the left and right directions. In this embodiment, four inclined surfaces 102 are provided, basically located at the four corners of the sedimentation tank body 10, and arranged close to the sedimentation zone 20 and the top outlet plate 101. In this way, suspended impurities at the corners of the sedimentation tank body 10 will also flow into the sedimentation zone 20 along the inclined surfaces 102.

[0031] In this embodiment, the sedimentation zone 20 has a discharge port 201 at its center. The discharge port 201 is connected to a pre-embedded pipe (not shown), which is connected to an external pump body via a valve. This allows for centralized extraction and discharge of wastewater sediment located inside the sedimentation zone 20, maximizing the removal of sediment. It should be noted that the pre-embedded pipe is embedded in the foundation.

[0032] In this embodiment, as Figure 5 and Figure 6 As shown, the scraping part of the pushing and scraping blade 30 has several plastic scrapers. Upper hooks 301 are detachably mounted on both ends of the top of the pushing and scraping blade 30 via screws, and the upper hooks 301 are suspended on the connecting rod 302. The two ends of the connecting rod 302 are mounted on the inner side of the horizontal slider 303, while the outer side of the horizontal slider 303 is connected to a push handle 305. The horizontal slider 303 is slidably connected inside the horizontal slot 304, which is formed on the top side wall of the sedimentation tank body 10 and located above the liquid surface of the sedimentation tank body 10. When collecting and treating suspended solids, pull and push the handle 305 to move the horizontal slider 303 within the horizontal slot 304, moving it from one end of the side wall of the sedimentation tank body 10 to the other end (to get closer to the scum storage box 40), thus achieving the feeding treatment of suspended solids (this can be done multiple times; each time it retracts, the feeding scraper 30 can be rotated to move the plastic scraper of the feeding scraper 30 above the liquid surface to avoid disturbing the liquid when retracting).

[0033] In this embodiment, as Figure 2 As shown, the bottom of the scum storage box 40 has multiple guide ports 401. The scum storage box 40 is semi-cylindrical. The design of the guide ports 401 allows the liquid inside the scum storage box 40 to flow naturally into the sedimentation tank body 10. The blockage of the guide ports 401 can be cleared manually by staff. Multiple guide ports 401 are provided (the number of guide ports 401 in the attached diagram is for reference only; the actual number is designed and assembled according to the type and size of suspended solids in the wastewater).

[0034] In this embodiment, the two ends of the scum storage box 40 extend from the corresponding horizontal slots 304 and are eccentrically mounted on the corresponding connecting blocks 402. It should be noted that after the two ends of the scum storage box 40 extend from the corresponding horizontal slots 304, they can be deflected relative to the horizontal slots 304 under external force. In this embodiment, the specific installation method uses a magnetic attraction connection. Specifically, a first magnetic block (not shown) is embedded on the outer wall of each end of the scum storage box 40, and a second magnetic block (not marked) that can magnetically attract the first magnetic block is embedded on the inner wall of the eccentric mounting hole (not marked) of the corresponding connecting block 402. Thus, when the end of the scum storage box 40 is installed in the eccentric mounting hole of the connecting block 402, the two magnetic blocks can attract each other to achieve the installation of the end of the scum storage box 40. To facilitate the deflection of the scum storage box 40, a rotating handle 403 is eccentrically installed on the outer side of the connecting block 402. The rotating handle 403 is located on the outer side of the sedimentation tank body 10. The scum storage box 40, used for collecting suspended solids, can be disassembled under external force after being filled with suspended solids due to its magnetic connection. This makes cleaning the impurities inside the scum storage box 40 simple and convenient. Furthermore, the eccentric installation of the scum storage box 40 on the connecting block 402 ensures that one side of its opening is submerged below the liquid surface of the sedimentation tank during deflection, facilitating the collection and treatment of suspended solids.

[0035] In addition, the main purpose of the scum storage box 40 in this embodiment is to initially collect suspended impurities, and the amount collected initially is relatively large. When it is necessary to completely remove suspended impurities, manual operation by staff is still required to replenish them. This practical solution can effectively reduce the workload of staff when operating manually.

[0036] It should be noted that, since the overall volume of the sedimentation tank for sewage treatment in this application is not small, and the horizontal and vertical spans are both large, the above figures are only schematically shown and have been reduced in size, but this does not affect the scope of protection of the claims of this application.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sedimentation tank for wastewater treatment, characterized in that, include: The sedimentation tank body (10) for wastewater treatment includes: a sedimentation zone (20) at the bottom of the sedimentation tank body (10); a pusher and scraper (30) at the top of the sedimentation tank body (10) and movable along the sedimentation tank body (10); and a scum storage box (40) on one side of the top of the sedimentation tank body (10), the bottom of which extends below the liquid surface of the sedimentation tank body (10).

2. The sedimentation basin for sewage treatment according to claim 1, characterized in that, The bottom of the sedimentation tank body (10) is provided with an upwardly protruding top plate (101), which is located between two sedimentation zones (20), and the two side walls of the top plate (101) are constructed as inclined surfaces.

3. A sedimentation basin for sewage treatment according to claim 2, wherein On the inner bottom wall of the sedimentation tank body (10), inclined surfaces (102) are constructed on both sides of the top plate (101) and are close to the sedimentation zone (20). The height of the inclined surfaces (102) gradually decreases from the inner side wall of the sedimentation tank body (10) toward the sedimentation zone (20) to form a slope.

4. The sedimentation basin for sewage treatment according to claim 1, wherein The sedimentation zone (20) is configured as a concave hemispherical shape that is wider at the top and narrower at the bottom. The sedimentation zone (20) has a discharge port (201) at the center, and the discharge port (201) is connected to a pre-embedded pipe.

5. The sedimentation basin for sewage treatment according to claim 1, wherein The scraping part of the pushing scraper (30) has several plastic scrapers. The top two ends of the pushing scraper (30) are detachably mounted with upper hooks (301) by screws. The upper hooks (301) are suspended on the connecting rod (302). The left and right ends of the connecting rod (302) are installed on the inner side of the horizontal slider (303), and the outer side of the horizontal slider (303) is connected to a push handle (305). The horizontal slider (303) is slidably connected to the inside of the horizontal slot (304). The horizontal slot (304) is opened on the side wall of the sedimentation tank body (10) and is located above the liquid surface of the sedimentation tank body (10).

6. A sedimentation basin for sewage treatment according to claim 5, wherein The bottom of the scum storage box (40) is provided with multiple flow guides (401), and the scum storage box (40) is configured as a semi-cylindrical shape.

7. A sedimentation basin for sewage treatment according to claim 6, wherein The two ends of the scum storage box (40) extend from the corresponding horizontal slot (304) and are respectively eccentrically installed on the corresponding connecting block (402). The connecting block (402) is also eccentrically installed with a rotating handle (403), which is located on the outside of the sedimentation tank body (10).

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