A wastewater treatment sedimentation tank

Abstract

This utility model discloses a sewage treatment sedimentation tank, comprising: a sludge-clearing bottom box, on which a sewage sedimentation tank is fixedly installed, and a front-end sludge discharge box is fixedly connected to the lower part of the front side of the sludge-clearing bottom box; and a sealing installation box, which is fixedly installed on the upper part of the back side of the sludge-clearing bottom box, and the interior of the sealing installation box has multiple sealing plate sliding grooves evenly spaced. This utility model optimizes the sealing boundary through the segmented structure of the sludge pusher plate, with the middle and top parts higher than the front and rear parts, reducing the probability of sludge seeping into the sludge-clearing box and improving the overall sealing performance; it ensures the rigidity and stability during sludge pushing while avoiding the risk of leakage caused by full extension; the gap design between the front part and the top of the front-end sludge discharge box facilitates smooth sludge discharge; the hydraulic telescopic rod drives the sludge pusher plate in conjunction with the hydraulic telescopic rod, providing sufficient power and strong synchronization, which can efficiently push the sludge out from the front end, resulting in high sludge-clearing efficiency, while avoiding adverse effects of sewage on the hydraulic telescopic rod.

Description

Technical Field

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

[0002] In existing technologies, wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. This includes industrial wastewater, agricultural wastewater, medical wastewater, and wastewater generated in daily life. Wastewater treatment is an important facility for environmental protection, playing a significant role in reducing water pollution, protecting water resources, and improving the ecological environment. Wastewater sedimentation tanks are a crucial step in the wastewater treatment process, primarily used to remove suspended solids and impurities heavier than water from wastewater.

[0003] A search revealed a Chinese patent application with patent number 202422633816.X, which discloses a wastewater treatment sedimentation tank for environmental pollution prevention and control. By designing a filter plate and a flow-blocking plate structure, the wave-shaped filter plate increases the filtration area, while the arc-shaped flow-blocking plate increases resistance to water flow. This allows the first and second filtration mechanisms to be opened and closed as the cleaning box moves within the tank, achieving filtration of water and impurities. Impurities are trapped in the cleaning box, facilitating the cleaning of impurities at the bottom of the tank and solving the problem of suspended solids and impurities settling at the bottom and being difficult to clean.

[0004] During use, the cleaning mechanism needs to remain inside the sewage treatment tank for a long time. The corrosiveness and microorganisms in the sewage can easily have an adverse effect on the cleaning mechanism, which may cause damage to the cleaning mechanism itself and is not conducive to the long-term operation of the entire device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wastewater treatment sedimentation tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wastewater treatment sedimentation tank, comprising: The dredging bottom box has a sewage sedimentation tank fixedly installed on its top, and a front sludge discharge box is fixedly connected to the lower part of the front side of the dredging bottom box, and a dredging cooperation box is fixedly connected to the lower part of the back side. A sludge pusher plate is slidably installed inside the dredging cooperation box. The sealing installation box is fixedly installed on the upper part of the back of the dredging bottom box, and the sealing installation box has multiple sealing plate sliding grooves equidistantly opened inside. Sliding sealing plates are slidably installed inside the sealing plate sliding grooves. The multiple sliding sealing plates are inserted into the dredging bottom box, dividing the space inside the dredging bottom box into upper and lower parts.

[0007] As a further improvement of this utility model: both sides of the sliding sealing plate are slidably engaged with sealing plate mounting brackets, and the sealing plate mounting brackets are welded to the inner wall of the dredging tank.

[0008] As a further embodiment of this utility model: a transmission threaded rod is installed on the internal thread of the sliding sealing plate, the tail end of the transmission threaded rod passes through the sliding groove of the sealing plate and extends outward, and a driven sprocket is fixedly installed on its extended end.

[0009] As a further improvement of this utility model: multiple servo motors are equidistantly arranged at the top of the tail end of the sealing installation box, and a drive sprocket is fixedly installed on the output shaft of the servo motor. The drive sprocket is connected to the driven sprocket through a chain.

[0010] As a further improvement of this utility model: a connecting cover is fixedly installed on the back of the dredging and assembly box, and a load-bearing installation box is fixedly installed on the back of the connecting cover.

[0011] As a further improvement of this utility model: the front of the bearing mounting box is provided with multiple bearing mounting slots at equal intervals, and the interior of the multiple bearing mounting slots is respectively equipped with a sliding rod and a hydraulic telescopic rod.

[0012] As a further improvement of this utility model: the telescopic end of the hydraulic telescopic rod and the front end of the sliding rod are both connected through the cover and fixedly installed on the back of the silt pusher plate.

[0013] As a further improvement of this utility model: a front cover is fixedly installed on the front of the front sludge discharge box, and a fixed support frame is fixedly connected to the bottom of the sludge dredging box.

[0014] Compared with the prior art, the present invention provides a wastewater treatment sedimentation tank, which has the following beneficial effects: 1. This wastewater treatment sedimentation tank optimizes the sealing boundary through a segmented structure of the sludge pusher plate. The middle and top sections are higher than the front and rear sections, reducing the probability of sludge seeping into the sludge removal box and improving overall sealing. This ensures rigidity and stability during sludge pushing while avoiding the risk of leakage due to full extension. The gap design between the front section and the top of the front sludge discharge box facilitates smooth sludge discharge. The hydraulic telescopic rod drives the sludge pusher plate with sufficient power and strong synchronization, which can efficiently push the sludge out from the front, resulting in high sludge removal efficiency, while avoiding adverse effects of wastewater on the hydraulic telescopic rod.

[0015] 2. In this sewage treatment sedimentation tank, the sliding sealing plate is driven by a servo motor through a drive sprocket, a driven sprocket, and a transmission threaded rod, which can precisely control its extension and retraction. The interior of the sludge dredging bottom tank is divided into upper and lower spaces by the sliding sealing plate. The sliding sealing plate fits tightly against the inner wall of the front-end cooperating box, and its boss is designed to cooperate with the groove of the sealing plate mounting bracket, further preventing sludge from entering the transmission structure or the external environment.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model; Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model. Figure 1 ; Figure 3 This is a partial cross-sectional view of the overall assembly of this utility model. Figure 2 ; Figure 4 This utility model Figure 3 A magnified schematic diagram of the partial structure at point A in the middle; Figure 5 This is a partially enlarged structural diagram of point B in part 3 of this utility model; Figure 6 This is a partially enlarged structural diagram of point C in this utility model 3.

[0018] In the diagram: 1. Dredging bottom box; 2. Fixed support frame; 3. Sewage sedimentation tank; 4. Drainage outlet; 5. Front sludge discharge box; 6. Front cover; 7. Front mating box; 8. Dredging mating box; 9. Connecting cover; 10. Bearing installation box; 11. Filter screen; 12. Bearing installation groove; 13. Matching slide bar; 14. Hydraulic telescopic rod; 15. Sludge pusher plate; 16. Tail end installation box; 17. Sealing installation box; 18. Sealing plate sliding groove; 19. Transmission threaded rod; 20. Driven sprocket; 21. Motor base; 22. Servo motor; 23. Drive sprocket; 24. Sliding sealing plate; 25. Sealing plate mounting carriage. Detailed Implementation

[0019] 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.

[0020] A type of wastewater treatment sedimentation tank, such as Figures 1 to 6 As shown, it includes: a sludge-clearing bottom tank 1 for storing sewage sediment and a sewage sedimentation tank 3 for slow-flowing sewage. A fixed support frame 2 is welded to the bottom of the sludge-clearing bottom tank 1 to facilitate the fixation of the entire device. A drain outlet 4 is welded to the upper part of one side of the sewage sedimentation tank 3. Sewage that has completed the sedimentation of impurities is discharged through the drain outlet 4. A filter screen 11 is fixedly installed on the inner wall of the sewage sedimentation tank 3 corresponding to the drain outlet 4 to filter impurities floating in the sewage.

[0021] The lower front of the dredging bottom box 1 is fixedly connected to the front sludge discharge box 5. The inner wall of the bottom end of the front sludge discharge box 5 is on the same plane as the inner wall of the bottom end of the dredging bottom box 1. Multiple fixing lugs are welded at equal intervals on the outer front wall of the front sludge discharge box 5. Fixing screws are welded to the front of the fixing lugs. The front sludge discharge box 5 is provided with a front cover 6. The back of the front cover 6 is integrally formed with a sealing body that is inserted into the front sludge discharge box 5. The contact between the front cover 6 and the front sludge discharge box 5 is sealed with a corrosion-resistant rubber layer to ensure that the dredging bottom box 1 will not leak sludge during non-sludge discharge time. Multiple mounting lugs are welded at equal intervals on the outer wall of the front cover 6. Fixing screws pass through the mounting lugs and are fixed with nuts.

[0022] The installation method of the aforementioned front cover 6 is relatively simple. The installation method of the front cover 6 can also be adjusted by referring to the installation method of the vacuum reactor lid or reactor door in the prior art to improve the ease of opening the front cover 6.

[0023] A dredging matching box 8 is fixedly connected to the lower part of the back of the dredging bottom box 1. The inner wall of the bottom end of the dredging matching box 8 is on the same plane as the inner wall of the bottom end of the dredging bottom box 1. A sludge pusher plate 15 is slidably installed inside the dredging matching box 8. The sludge pusher plate 15 consists of three parts: front, middle and rear. The bottom surfaces of the three parts are attached to the inner wall of the bottom end of the dredging bottom box 1. The front part can be inserted into the front sludge discharge box 5 to improve the sludge discharge effect. A certain gap is set between the top of the front part and the top inner wall of the front sludge discharge box 5 to facilitate sludge discharge. The rear part is inserted into the dredging matching box 8. The top of the middle part is higher than the front and rear parts to improve the stability of the sludge pusher plate 15 and prevent the sludge pusher plate 15 from completely extending out of the front sludge discharge box 5.

[0024] A connecting cover 9 is fixedly installed on the back of the dredging assembly box 8. A sealing block is integrally formed on the front of the connecting cover 9. The sealing block is inserted into the interior of the dredging assembly box 8. Figure 2 As shown, at this time, the sludge pusher 15 is not performing sludge removal work and is in its initial state, with its rear part in contact with the sealing block.

[0025] The support mounting box 10 is fixedly installed on the back of the connecting cover 9, as shown in the figure. Figure 3 The front of the support mounting box 10 is provided with seven support mounting slots 12 at equal intervals (the specific number of support mounting slots 12 can be selected according to the actual situation, and seven is the example number designed in this application). The seven support mounting slots 12 are respectively equipped with a sliding rod 13 and a hydraulic telescopic rod 14.

[0026] Reference Figure 4 The sliding rods 13 are set at equal intervals, and the hydraulic telescopic rods 14 are set at equal intervals, with the two arranged alternately; the three hydraulic telescopic rods 14 are linked together. The hydraulic telescopic rods 14 are existing technology, and this application will not elaborate on their linkage method, control method, control pipeline, hydraulic oil supply and other principles.

[0027] The telescopic end of the hydraulic telescopic rod 14 and the front end of the sliding rod 13 are both connected through the cover 9 and fixedly installed on the back of the sludge pusher plate 15. When dredging is carried out, the three hydraulic telescopic rods 14 extend synchronously, causing the sludge pusher plate 15 to push the sludge out of the front sludge discharge box 5.

[0028] A tail end mounting box 16 is welded to the upper part of the back of the dredging bottom box 1. A sealing mounting box 17 is provided on the back of the tail end mounting box 16. A mounting square tube is welded to the front end of the sealing mounting box 17. The mounting square tube is fixedly sleeved on the outer wall of the tail end mounting box 16.

[0029] The sealing installation box 17 has multiple sealing plate sliding grooves 18 equidistantly opened on the front. A sliding sealing plate 24 is slidably installed inside the sealing plate sliding groove 18. An internal threaded hole is opened in the center of the front of the sliding sealing plate 24. A transmission threaded rod 19 is installed inside the internal threaded hole. The tail end of the transmission threaded rod 19 passes through the sealing plate sliding groove 18 and extends outward, and is rotatably connected to the sealing installation box 17. A driven sprocket 20 is fixedly installed at its extended end.

[0030] Multiple motor bases 21 are fixedly installed at equal intervals on the top of the sealing installation box 17. Multiple servo motors 22 are fixedly installed on the top of the motor bases 21. A drive sprocket 23 is fixedly installed on the output shaft of the servo motor 22. The drive sprocket 23 is connected to the driven sprocket 20 through a chain. The multiple servo motors 22 and multiple hydraulic telescopic rods 14 are all controlled by a controller, and the servo motors 22 work independently.

[0031] Both sides of the sliding sealing plate 24 are slidably engaged with sealing plate mounting brackets 25. The sealing plate mounting brackets 25 are welded to the inner wall of the dredging bottom box 1, and the bottom end face of the sealing plate mounting brackets 25 is flush with the lower surface of the sliding sealing plate 24. The top protrudes upward, and the two sides of the protrusion are set as slopes to avoid obstructing the sludge from falling. Furthermore, a front end fitting box 7 is welded to the upper part of the front side of the dredging bottom box 1. Its inner cavity is connected to the inner cavity of the dredging bottom box 1, and its bottom end face is set as a downward sloping surface to prevent sludge from accumulating inside the front end fitting box 7 during the process of the sliding sealing plate 24 fitting with the inner wall of the front end fitting box 7, thus affecting the sealing performance of the sliding sealing plate 24.

[0032] Both sides of the sliding sealing plate 24 are provided with bosses. The mating surface of the sealing plate mounting slide 25 and the sliding sealing plate 24 is provided with a groove for accommodating the sliding of the bosses. The shape of the sealing plate sliding groove 18 is adapted to the shape of the sliding sealing plate 24. When the front end of the sliding sealing plate 24 is in contact with the inner wall of the front mating box 7, its tail end is inside the tail end mounting box 16 to prevent silt from entering the sealing plate sliding groove 18 and causing silt leakage.

[0033] Multiple sliding sealing plates 24 are inserted into the dredging bottom box 1. With the cooperation of the sealing plate mounting bracket 25, the space inside the dredging bottom box 1 is divided into upper and lower parts. The top of the middle part of the sludge push plate 15 is in contact with the lower surface of the sliding sealing plate 24, which improves the sludge removal effect and reduces the possibility of sludge entering the dredging combination box 8.

[0034] Working principle: Please refer to Figures 1 to 6 Assemble the device as shown in the figure; In use, the device injects pre-filtered wastewater into the wastewater sedimentation tank 3, causing the sludge in the wastewater to settle and fall into the sludge sludge bottom tank 1. When the sludge fills the sludge bottom tank 1 (monitored by sensors, according to existing technology), the controller starts the servo motor 22. The servo motor 22 drives the transmission threaded rod 19 to rotate clockwise through the drive sprocket 23 and the driven sprocket 20, which in turn causes the sliding sealing plate 24 to be inserted into the sludge bottom tank 1 until the front end of the sliding sealing plate 24 is tightly attached to the inner wall of the front fitting box 7. Then the front cover 6 is opened, and the hydraulic telescopic rod 14 is started. The hydraulic telescopic rod 14 drives the sludge pusher plate 15 to move towards the front discharge box 5, pushing out the sludge. After the above operation is completed, the hydraulic telescopic rod 14 returns to its initial state (the rear part of the sludge pusher plate 15 is inserted into the sludge sludge fitting box 8), then the front discharge box 5 is closed, and finally the sliding sealing plate 24 is controlled to return to its initial state (the sliding sealing plate 24 is completely retracted into the sealing plate sliding groove 18).

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sewage treatment sedimentation tank, characterized in that include: The bottom tank (1) is fixedly installed with a sewage sedimentation tank (3) at its top. The bottom front of the bottom tank (1) is fixedly connected with a front discharge box (5), and the bottom back is fixedly connected with a sludge mixing box (8). The sludge mixing box (8) is slidably installed with a sludge pusher plate (15) inside. The sealing installation box (17) is fixedly installed on the upper part of the back of the dredging bottom box (1), and the sealing installation box (17) has multiple sealing plate sliding grooves (18) equidistantly opened inside. The sliding sealing plate (24) is slidably installed inside the sealing plate sliding groove (18), and the multiple sliding sealing plates (24) are inserted into the dredging bottom box (1) to divide the space inside the dredging bottom box (1) into upper and lower parts.

2. A sewage treatment sedimentation basin according to claim 1, characterised in that: Both sides of the sliding sealing plate (24) are slidably connected to the sealing plate mounting bracket (25), which is welded to the inner wall of the dredging bottom box (1).

3. A sewage treatment sedimentation basin according to claim 1, characterised in that: The sliding sealing plate (24) has a transmission threaded rod (19) installed on its internal thread. The tail end of the transmission threaded rod (19) passes through the sliding groove (18) of the sealing plate and extends outward. A driven sprocket (20) is fixedly installed on its extended end.

4. A sewage treatment sedimentation basin according to claim 3, characterised in that: Multiple servo motors (22) are equidistantly arranged at the top of the tail end of the sealing installation box (17). The output shaft of the servo motor (22) is fixedly mounted with a drive sprocket (23). The drive sprocket (23) is connected to the driven sprocket (20) via a chain.

5. A sewage treatment sedimentation basin according to claim 1, characterised in that: A connecting cover (9) is fixedly installed on the back of the dredging assembly box (8), and a load-bearing installation box (10) is fixedly installed on the back of the connecting cover (9).

6. A sewage treatment sedimentation basin according to claim 5, characterised in that: The front of the bearing installation box (10) is provided with multiple bearing installation slots (12) at equal intervals, and the interior of the multiple bearing installation slots (12) is respectively equipped with a sliding rod (13) and a hydraulic telescopic rod (14).

7. A sewage treatment sedimentation basin according to claim 6, characterised in that: The telescopic end of the hydraulic telescopic rod (14) and the front end of the sliding rod (13) are both connected through the cover (9) and fixedly installed on the back of the silt pusher plate (15).

8. A sewage treatment sedimentation basin according to claim 1, characterised in that: The front end of the front sludge discharge box (5) is fixedly installed with a front end cover (6), and the bottom end of the sludge removal box (1) is fixedly connected with a fixed support frame (2).

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