Sewage treatment desilting equipment

Abstract

The utility model provides sewage treatment desilting equipment which comprises a desilting tank, a plurality of bottom tanks are uniformly mounted at the bottom of the desilting tank, a drain outlet is mounted on the lower portion of one side of each bottom tank, a connecting pipe is arranged on the upper side of the desilting tank, and a pipe joint used for being connected with a water conveying pipeline is mounted in the middle of the outer surface of the connecting pipe. A first stop valve and a second stop valve are installed at the two ends of the connecting pipe correspondingly, a bent pipe is installed at the end, away from the connecting pipe, of the first stop valve, the end, away from the first stop valve, of the bent pipe extends into the desilting tank, and a liquid distribution pipe is installed at the end, away from the connecting pipe, of the second stop valve; the bottom groove has the advantages that water flow in the water conveying pipeline is utilized to loosen hardened silt, and the hardened silt which cannot be smoothly discharged in the bottom groove can be conveniently treated.

Description

Technical Field

[0001] This utility model is a sedimentation equipment for sewage treatment, belonging to the field of sewage treatment. Background Technology

[0002] In wastewater treatment systems, there is a type of sedimentation facility whose unique design is reflected in the bottom structure of the sedimentation tank. The bottom of the sedimentation tank has multiple specially shaped troughs, all of which are wider at the top and narrower at the bottom. The wider top design facilitates the settling of sediment in the wastewater into the troughs, increasing the sediment collection area; the narrower bottom structure allows the settled sediment to naturally accumulate under gravity, improving sediment storage efficiency. Each trough is equipped with a drain outlet. When the sediment in the trough accumulates to a certain level, the drain outlet can be opened to smoothly discharge the deposited sediment, facilitating centralized treatment of the sediment and ensuring the continuous and stable operation of the sedimentation facility, thus guaranteeing the effectiveness of wastewater treatment.

[0003] In the sedimentation process of wastewater treatment, the situation becomes problematic when a large amount of silt accumulates at the bottom of the sedimentation tank. As the silt continues to settle, the mutual compression between it gradually intensifies, eventually leading to a compacted state. This compaction transforms the silt from loose particles into a tightly bound blocky structure. Once the silt is compacted, when the discharge outlet on the bottom tank is opened, the silt, which would normally flow smoothly by gravity, becomes difficult to move and cannot be discharged smoothly. This not only affects the normal silt removal operation of the sedimentation facility but may also reduce the effective volume of the sedimentation tank, lowering sedimentation efficiency and even adversely impacting the entire wastewater treatment process, hindering subsequent wastewater treatment, and increasing treatment costs and complexity. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sewage treatment sedimentation device to solve the problems mentioned in the background technology. This utility model realizes the use of water flow in the water conveyance pipeline to loosen the compacted silt and sand, so as to facilitate the treatment of silt and sand that cannot be smoothly discharged in the bottom tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment sedimentation device, comprising a sedimentation tank, wherein multiple bottom troughs are evenly installed at the bottom of the sedimentation tank, the bottom troughs having a structure that is wider at the top and narrower at the bottom, a sewage outlet is installed at the lower part of one side of the bottom trough, a connecting pipe is provided on the upper side of the sedimentation tank, a pipe joint for connecting to a water supply pipe is installed at the middle of the outer surface of the connecting pipe, a first shut-off valve and a second shut-off valve are respectively installed at both ends of the connecting pipe, a bend is installed at the end of the first shut-off valve away from the connecting pipe, the end of the bend away from the first shut-off valve extends into the sedimentation tank, a liquid distribution pipe is installed at the end of the second shut-off valve away from the connecting pipe, multiple branch pipes are evenly installed on the outer surface of the liquid distribution pipe, the end of the branch pipe away from the liquid distribution pipe penetrates the bottom trough and extends into the bottom trough, and a one-way component is installed at the end of the branch pipe in the bottom trough to prevent silt from entering the branch pipe.

[0006] Furthermore, the one-way component includes a cylindrical cap. The cylindrical cap is installed at one end of the branch pipe located in the bottom groove by fasteners formed by multiple sets of screws and nuts. A perforated disc is installed on the side of the cylindrical cap away from the branch pipe. A rubber sheet is provided on the side of the perforated disc opposite to the branch pipe. The rubber sheet has a circular structure. The edge of the rubber sheet is adhered to the perforated disc. A cross slit is opened in the middle of one side of the rubber sheet.

[0007] Furthermore, a pressure ring is provided on the side of the rubber sheet opposite to the perforated disk, and the pressure ring is installed inside the cap.

[0008] Furthermore, one end of the branch pipe located in the bottom groove is fitted with a first connecting ring that is fixed to the branch pipe, one end of the cap is fitted with a second connecting ring that is fixed to the cap, and one end of the screw passes through the first connecting ring and the second connecting ring and is threaded with a nut.

[0009] Furthermore, the second connecting ring has a support ring on the side opposite to the first connecting ring, with a gap between the support ring and the first connecting ring. The support ring is sleeved on the cap and connected and fixed to the cap, and the screw passes through the support ring.

[0010] Furthermore, a support frame is installed in the lower part of the sedimentation tank, and multiple reinforcing ribs are evenly installed on the upper surface of the sedimentation tank.

[0011] Furthermore, an L-shaped plate is provided directly below the bend. The L-shaped plate is installed in the upper part of the settling tank. Multiple V-shaped grooves are uniformly machined in the upper part of the vertical part of the L-shaped plate. A baffle is provided on the side of the settling tank away from the L-shaped plate. An overflow port is installed in the upper part of one side of the settling tank. The overflow port is located on the side of the baffle away from the L-shaped plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. Connect the water supply pipeline through the connecting pipe and pipe joint, close the first shut-off valve, and the water flow will no longer enter the sedimentation tank through the bend. Open the second shut-off valve, and the water flow will flow into the bottom tank through the liquid distribution pipe and branch pipe. The water flow will then disperse the silt in the bottom tank. In other words, the water flow will impact the silt at the bottom of the container formed by the sedimentation tank and the bottom tank, making it easier for the silt to be discharged from the sewage outlet and improving the sedimentation treatment efficiency.

[0014] 2. When the second shut-off valve is closed and the first shut-off valve is opened, the sewage flows into the space formed by the sedimentation tank and the bottom tank. At this time, the rubber sheet adheres to the perforated plate under the action of the pressure difference on both sides, and the cross-shaped seam on the rubber sheet is closed, thus preventing the mud and sand from entering the branch pipe and depositing in the branch pipe, and preventing the branch pipe from being blocked by mud and sand. When the water flows from the branch pipe into the bottom tank, the cross-shaped seam on the rubber sheet opens under the impact of the water flow, thus not affecting the dispersing of the sediment in the bottom tank.

[0015] 3. When using screws and nuts to connect branch pipes and caps, one end of the screw should pass through the support ring, the second connecting ring, and the first connecting ring in sequence before screwing on the nut. Under the constraint of the support ring, there is a gap between the screw head and the second connecting ring. When the cap is replaced later and the screw and nut cannot be properly separated due to corrosion, the screw can be cut off using the space between the support ring and the second connecting ring. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the wastewater treatment sedimentation equipment of this utility model;

[0018] Figure 2 This is another perspective view of the wastewater treatment sedimentation equipment of this utility model;

[0019] Figure 3 This is a schematic diagram of the assembly of branch pipes, liquid distribution pipes, and connecting pipes in the wastewater treatment sedimentation equipment of this utility model;

[0020] Figure 4 For China Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a cross-sectional assembly diagram of the rubber sheet, perforated disc, and cylindrical cap in the wastewater treatment sedimentation equipment of this utility model;

[0022] In the diagram: 1-Sedimentation tank, 2-L-shaped plate, 3-Bend, 4-First shut-off valve, 5-Pipe fitting, 6-Connecting pipe, 7-Second shut-off valve, 8-Distribution pipe, 9-Positioning plate, 10-Reinforcing rib, 11-Support frame, 12-Branch pipe, 13-Bottom tank, 14-Overflow port, 15-Drain outlet, 16-Cap, 17-Rubber sheet, 18-Cross seam, 19-Pressure ring, 20-Support ring, 21-Screw, 22-Nut, 23-First connecting ring, 24-Second connecting ring, 25-Perforated disc. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a sewage treatment sedimentation equipment, including a sedimentation tank 1, with multiple bottom troughs 13 evenly installed at the bottom of the sedimentation tank 1. The bottom troughs 13 have a structure that is wider at the top and narrower at the bottom. A sewage outlet 15 is installed at the lower part of one side of the bottom trough 13. By installing a support frame 11 at the lower part of the sedimentation tank 1 and installing multiple reinforcing ribs 10 evenly on the upper surface of the sedimentation tank 1, the stability of the overall structure is improved.

[0025] See Figure 1 and Figure 2 A connecting pipe 6 is provided on the upper side of the sedimentation tank 1. A pipe fitting 5 for connecting to a water supply pipe is installed at the middle of the outer surface of the connecting pipe 6. A first shut-off valve 4 and a second shut-off valve 7 are respectively installed at both ends of the connecting pipe 6. A bend 3 is installed at the end of the first shut-off valve 4 away from the connecting pipe 6. The end of the bend 3 away from the first shut-off valve 4 extends into the sedimentation tank 1. An L-shaped plate 2 is provided directly below the bend 3. The L-shaped plate 2 is installed in the upper part of the sedimentation tank 1. The upper part of the vertical part of the L-shaped plate 2 is... The settling tank 1 has multiple V-shaped channels. A baffle is provided on the side of the settling tank 1 away from the L-shaped plate 2. An overflow port 14 is installed at the upper part of one side of the settling tank 1. The overflow port 14 is located on the side of the baffle away from the L-shaped plate 2. The L-shaped plate 2, the V-shaped channels, the baffle and the overflow port 14 work together. When sewage flows in, it first impacts the L-shaped plate 2, causing large particles of silt to settle. Small particles of silt are blocked by the baffle as the water flows. Clean water flows out from the overflow port 14, separating the silt and impurities in the sewage and improving the purification effect.

[0026] See Figures 1-3A distribution pipe 8 is installed at the end of the second shut-off valve 7 away from the connecting pipe 6. Multiple branch pipes 12 are evenly distributed on the outer surface of the distribution pipe 8. The ends of the branch pipes 12 away from the distribution pipe 8 penetrate the bottom trough 13 and extend into it. When it is necessary to clean the sediment in the bottom trough 13, the operation is as follows: First, close the first shut-off valve 4, so that water cannot flow into the sedimentation tank 1 through the bend 3. Then, open the second shut-off valve 7. At this time, the water will flow along the distribution pipe 8 and then continuously flow into the bottom trough 13 through the evenly distributed branch pipes 12 on the outer surface of the distribution pipe 8. This water flow impacts the sediment upwards from the bottom of the container formed by the sedimentation tank 1 and the bottom trough 13. Under the strong impact of the water flow, the originally compacted or accumulated sediment is gradually dispersed. Due to the impact force of the water flow from the bottom, the fluidity of the sediment is greatly enhanced, allowing it to be discharged more smoothly from the drain outlet 15 at the lower side of the bottom trough 13. This water flow impact method significantly improves the efficiency of sedimentation treatment, ensuring that the sedimentation equipment can operate efficiently and stably, and providing a strong guarantee for the smooth progress of the sewage treatment process.

[0027] See Figures 3-5 One end of the branch pipe 12, located within the bottom groove 13, is fitted with a cap 16 via fasteners formed by multiple sets of screws 21 and nuts 22. A first connecting ring 23, fixed to the branch pipe 12, is fitted onto the end of the branch pipe 12 within the bottom groove 13. A second connecting ring 24, fixed to the cap 16, is fitted onto the end of the cap 16. One end of a screw 21 passes through the first connecting ring 23 and the second connecting ring 24, and is threaded onto a nut 22. A support ring 20, with a gap between it and the second connecting ring 24, is located on the side of the second connecting ring 24 facing away from the first connecting ring 23. The support ring 20 is fitted onto the cap 16 and fixed to it. The screw 21 passes through the support ring 20. The screw 21 is then passed sequentially through the support ring 20, the second connecting ring 24, and the first connecting ring 23, and then the nut 22 is tightened. In this process, the support ring 20 plays a crucial role; due to its constraint, a certain gap is formed between the head of the screw 21 and the second connecting ring 24. After prolonged use, screw 21 and nut 22 may become difficult to separate due to corrosion, making it challenging to replace cap 16. However, thanks to the space reserved between support ring 20 and second connecting ring 24, simply cutting screw 21 within this space easily solves the problem of screw 21 and nut 22 being unable to separate, allowing for the smooth replacement of cap 16. This significantly reduces the difficulty of equipment maintenance and improves maintenance efficiency.

[0028] See Figures 3-5A perforated disc 25 is installed inside the cap 16 on the side away from the branch pipe 12. A rubber sheet 17, circular in shape, is located on the side of the perforated disc 25 opposite to the branch pipe 12. The edge of the rubber sheet 17 is adhered to the perforated disc 25. A cross-shaped slit 18 is formed in the center of one side of the rubber sheet 17. A pressure ring 19 is located on the side of the rubber sheet 17 opposite to the perforated disc 25. The pressure ring 19 is installed inside the cap 16. The pressure ring 19 and the perforated disc 25 work together to improve the stability of the rubber sheet 17. When it is necessary to allow sewage to flow into the space formed by the sedimentation tank 1 and the bottom tank 13, the operation method is to close the second shut-off valve 7 and open the first shut-off valve 4. In this case, the sewage will flow smoothly into the space. At this time, due to the pressure difference between the sewage and the inside of the branch pipe 12, the rubber sheet 17 will be tightly adhered to the perforated disc 25 under the action of the pressure difference, so that the cross-shaped slit 18 on the rubber sheet 17 is in a closed state. In this way, silt cannot enter the branch pipe 12, thus preventing its deposition and effectively preventing blockage. When it is necessary to use water flow to disperse the silt settled in the bottom tank 13, the operation is the reverse of the above process: the first shut-off valve 4 is closed and the second shut-off valve 7 is opened. At this time, water will flow from the branch pipe 12 into the bottom tank 13. Under the impact of the water flow, the cross slits 18 on the rubber sheet 17 will automatically open, allowing the water to pass smoothly and thus disperse the silt settled in the bottom tank 13. The entire process is not obstructed by the rubber sheet 17.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sewage treatment sand setting device comprising a sand setting tank (1), characterized in that: The sedimentation tank (1) has multiple bottom troughs (13) evenly installed at the bottom. The bottom troughs (13) have a structure that is wider at the top and narrower at the bottom. A drain outlet (15) is installed at the lower part of one side of the bottom trough (13). A connecting pipe (6) is provided on the upper side of the sedimentation tank (1). A pipe joint (5) for connecting to a water supply pipe is installed at the middle of the outer surface of the connecting pipe (6). A first shut-off valve (4) and a second shut-off valve (7) are respectively installed at both ends of the connecting pipe (6). The end of the first shut-off valve (4) away from the connecting pipe (6) is equipped with a... The device is equipped with a bend (3), the end of which is away from the first shut-off valve (4) extends into the sedimentation tank (1). The end of the second shut-off valve (7) away from the connecting pipe (6) is equipped with a liquid distribution pipe (8). Multiple branch pipes (12) are evenly installed on the outer surface of the liquid distribution pipe (8). The end of the branch pipe (12) away from the liquid distribution pipe (8) passes through the bottom tank (13) and extends into the bottom tank (13). The end of the branch pipe (12) in the bottom tank (13) is equipped with a one-way component to prevent mud and sand from entering the branch pipe (12).

2. The sewage treatment sand separating device according to claim 1, characterized in that: The one-way component includes a cap (16). The cap (16) is installed on one end of the branch pipe (12) in the bottom groove (13) by fasteners formed by multiple sets of screws (21) and nuts (22). A perforated disc (25) is installed on the side of the cap (16) away from the branch pipe (12). A rubber sheet (17) is provided on the side of the perforated disc (25) away from the branch pipe (12). The rubber sheet (17) has a circular structure. The edge of the rubber sheet (17) is bonded to the perforated disc (25). A cross slit (18) is opened in the middle of one side of the rubber sheet (17).

3. The sewage treatment sand separating device according to claim 2, characterized in that: The rubber sheet (17) has a pressure ring (19) on the side opposite to the perforated disk (25), and the pressure ring (19) is installed inside the cap (16).

4. The wastewater treatment sedimentation equipment according to claim 2, characterized in that: One end of the branch pipe (12) located in the bottom groove (13) is fitted with a first connecting ring (23) that is fixed to the branch pipe (12). One end of the cap (16) is fitted with a second connecting ring (24) that is fixed to the cap (16). One end of the screw (21) passes through the first connecting ring (23) and the second connecting ring (24) and is threaded with a nut (22).

5. The sewage treatment grit removal device of claim 4, wherein: The second connecting ring (24) has a support ring (20) on the side opposite to the first connecting ring (23) with a gap between it and the second connecting ring (24). The support ring (20) is sleeved on the cap (16) and connected and fixed to the cap (16). The screw (21) passes through the support ring (20).

6. The sewage treatment grit removal device of claim 1, wherein: A support frame (11) is installed in the lower part of the sedimentation tank (1), and multiple reinforcing ribs (10) are evenly installed on the upper surface of the sedimentation tank (1).

7. The sewage treatment sand separation device according to claim 1, characterized in that: An L-shaped plate (2) is provided directly below the bend (3). The L-shaped plate (2) is installed in the upper part of the sedimentation tank (1). Multiple V-shaped grooves are uniformly processed in the upper part of the vertical part of the L-shaped plate (2). A baffle is provided on the side of the sedimentation tank (1) away from the L-shaped plate (2). An overflow port (14) is installed in the upper part of one side of the sedimentation tank (1). The overflow port (14) is located on the side of the baffle away from the L-shaped plate (2).

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