Sedimentation tank for sewage treatment

Abstract

The utility model discloses a sedimentation tank for sewage treatment, and belongs to the technical field of sewage treatment. The sedimentation tank assembly comprises a tank body, an inclined plate is arranged on one side of the bottom face of the inner wall of the tank body, adjusting grooves are formed in the two sides of the outer wall of the tank body, mud scraping assemblies are arranged on the adjusting grooves in a sliding fit mode, and each mud scraping assembly comprises a bridge frame, a connecting rod is arranged at the bottom end of the bridge frame, and a scraping plate is fixedly installed on the connecting rod. The bottom end of the baffle plate is fixedly connected with a perforated plate assembly, the perforated plate assembly comprises a perforated plate, a clamping block is arranged at one end of the perforated plate, sliding blocks are arranged in the middles of the two opposite sides of the perforated plate, and electric push rods are mounted on the bottom surfaces of the sliding blocks. Through cooperation of the inclined plate and the perforated plate assembly, inlet water is uniformly dispersed to the whole cross section of the sedimentation tank through the perforated plate, so that water flow stably and uniformly flows, suspended solids in sewage have more sufficient time and space for sedimentation, and the sedimentation efficiency is improved.

Description

Technical Field

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

[0002] With the rapid development of industrialization and urbanization, sewage treatment has become a key link in environmental protection. As an important part of the sewage treatment process, sedimentation tanks function to separate suspended solid particles in sewage to the bottom of the tank through gravity sedimentation, thereby achieving solid-liquid separation and purifying water quality.

[0003] When wastewater is fed into the existing sedimentation tank, the water flow distribution is uneven and short-circuiting is prone to occur. This results in insufficient time and space for the suspended solids in the wastewater to settle, leading to low sedimentation efficiency. Moreover, the turbulent water flow is not effectively rectified and continuously disturbs the settled sludge, hindering sludge settling and accumulation, making it inconvenient for daily use. Utility Model Content

[0004] The purpose of this utility model is to provide a sedimentation tank for sewage treatment. Through the combination of inclined plates and perforated plates, the perforated plates evenly disperse the incoming water across the entire cross-section of the sedimentation tank, making the water flow stable and uniform, allowing suspended solids in the sewage to have more time and space to settle, thereby improving sedimentation efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to a sedimentation tank for sewage treatment, comprising a sedimentation tank assembly. The sedimentation tank assembly includes a tank body, with an inclined plate on one side of the bottom surface of the inner wall of the tank body. Adjustment grooves are provided on both sides of the outer wall of the tank body, and a sludge scraping assembly is slidably fitted on the adjustment grooves. The sludge scraping assembly includes a bridge frame, with a connecting rod at the bottom of the bridge frame. A scraper is fixedly installed on the connecting rod. Slots are provided on opposite sides of the inner wall of the tank body near the inclined plate, and baffles are inserted into the slots. A perforated plate assembly is fixedly connected to the bottom of the baffles. The perforated plate assembly includes a perforated plate, with a locking block at one end of the perforated plate. A slider is provided in the middle of opposite sides of the perforated plate, and an electric push rod is installed on the bottom surface of the slider.

[0007] Furthermore, the pool is a rectangular pool with an open top surface. The pool has an inlet and an outlet at opposite ends. An inlet pipe is fixedly installed through the inlet, and an outlet pipe is fixedly installed through the outlet. The inlet pipe is located at the end near the inclined plate.

[0008] Furthermore, the cable tray is arranged in an inverted "U" shape, and each of the two extended sections of the inverted "U" shape of the cable tray is provided with a sliding block. The sliding block is slidably engaged on the adjustment groove. The connecting rod and the scraper are both located inside the pool body, and the bottom end of the scraper is set against the bottom surface of the inner wall of the pool body.

[0009] Furthermore, slots are provided at both corners of the inner wall of the pool near the water inlet, and sliding grooves are provided in the middle of opposite sides of the pool where the slots and slots are located. The card block and the slider slide and engage in the slots and sliding grooves respectively.

[0010] Furthermore, the baffle and the perforated plate are combined in an "L" shape, and several rows of through holes are opened through the perforated plate. The perforated plate is located below the water inlet, and the bottom end of the electric push rod is set against the bottom surface of the inner wall of the chute.

[0011] This utility model has the following beneficial effects:

[0012] This invention utilizes a combination of inclined plates and perforated plates. The perforated plates evenly distribute the incoming water across the entire cross-section of the sedimentation tank, ensuring a smooth and uniform water flow. This allows suspended solids in the wastewater more time and space to settle, thereby improving sedimentation efficiency. When water flows through the perforations of the perforated plates, the direction and speed of the flow change, adjusting the originally turbulent flow into a more stable laminar flow state. This reduces the disturbance of the settled sludge by the water flow, which is beneficial for sludge settling and accumulation. The inclined plates utilize the principle of shallow sedimentation to improve sedimentation efficiency.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the sedimentation tank.

[0015] Figure 2 This is a schematic diagram of the internal structure of a sedimentation tank;

[0016] Figure 3 This is a structural schematic diagram of the baffle and perforated plate assembly.

[0017] Figure 4 This is a structural diagram of the sedimentation tank components, slots, grooves, and slides.

[0018] In the diagram: 1. Sedimentation tank assembly; 101. Tank body; 102. Inclined plate; 103. Inlet pipe; 104. Outlet pipe; 105. Adjustment trough; 2. Sludge scraper assembly; 201. Cable tray; 202. Connecting rod; 203. Scraper; 3. Baffle; 4. Slot; 5. Perforated plate assembly; 501. Perforated plate; 502. Locking block; 503. Sliding block; 504. Electric push rod; 6. Slot; 7. Slide groove. 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. 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.

[0020] Please see Figure 1-4This utility model provides a technical solution: a sedimentation tank for sewage treatment, including a sedimentation tank assembly 1. The sedimentation tank assembly 1 includes a tank body 101. An inclined plate 102 is provided on one side of the bottom surface of the inner wall of the tank body 101. Utilizing the principle of shallow sedimentation, suspended particles in the sewage are accelerated to settle and then slide down the surface to the bottom of the tank, improving sedimentation efficiency. Adjustment grooves 105 are provided on both sides of the outer wall of the tank body 101. The tank body 101 is a rectangular pool with an open top surface. An inlet and an outlet are respectively provided at opposite ends of the tank body 101. An inlet pipe 103 is fixedly installed through the inlet, through which sewage flows into the tank body 101. An outlet pipe 104 is fixedly installed through the outlet, through which treated water is discharged. Electromagnetic devices are provided on both the inlet pipe 103 and the outlet pipe 104. The valve controls the water flow. The inlet pipe 103 is located near the inclined plate 102, which facilitates the rapid interaction of sewage with the inclined plate 102 after it enters, initiating the sedimentation process. A sludge scraper assembly 2 is slidably fitted on the regulating tank 105. The sludge scraper assembly 2 includes a bridge frame 201. A connecting rod 202 is provided at the bottom of the bridge frame 201, and a scraper 203 is fixedly installed on the connecting rod 202. The bridge frame 201 is arranged in an inverted "U" shape. Sliding blocks are respectively provided on the two extensions of the inverted "U" shaped rod of the bridge frame 201. The sliding blocks are slidably fitted on the regulating tank 105. A driving device is connected to the bridge frame 201, which can realize the back-and-forth movement of the bridge frame 201 on the outer wall of the tank body 101. The connecting rod 202 and the scraper 203 are both located inside the tank body 101. The bottom end of the scraper 203 abuts against the... The sludge is placed on the bottom surface of the inner wall of the pool body 101. When it is necessary to clean the sludge settled at the bottom of the pool, the drive bridge 201 moves along the adjusting groove 105, driving the connecting rod 202 and the scraper 203 to move synchronously, scraping the sludge at the bottom of the pool to a designated location for centralized treatment. Slots 4 are provided on opposite sides of the inner wall of the pool body 101 near the inclined plate 102. Baffles 3 are inserted into the slots 4. The bottom end of the baffles 3 is fixedly connected to the perforated plate assembly 5. The perforated plate assembly 5 includes a perforated plate 501. A locking block 502 is provided at one end of the perforated plate 501. A slider 503 is provided in the middle of opposite sides of the perforated plate 501. Slots 6 are provided at the two corners of the inner wall of the pool body 101 near the water inlet. Slide grooves 7 are provided in the middle of opposite sides of the pool body 101 where the slots 4 and slots 6 are located. The locking block 502 and the slider 503 are slidably fitted inside the locking groove 6 and the sliding groove 7, respectively. An electric push rod 504 is installed on the bottom surface of the slider 503. The baffle 3 and the perforated plate 501 are combined in an "L" shape. Several through holes are drilled through the perforated plate 501, allowing for preliminary filtration and even water distribution of the incoming wastewater. This ensures a more stable and uniform flow of wastewater after entering the sedimentation tank, optimizing the sedimentation effect. The perforated plate 501 is located below the inlet. The bottom end of the electric push rod 504 abuts against the bottom surface of the inner wall of the sliding groove 7. When the electric push rod 504 extends or retracts, it pushes the slider 503 to move within the sliding groove 7, thereby adjusting the perforated plate 501 along the locking groove 6 and the sliding groove 7 to a designated position, facilitating the removal of the baffle 3 and the perforated plate 501 for cleaning.The electric linear actuator 504 mentioned above is existing technology and will not be described in detail further.

[0021] During operation, wastewater flows into the tank 101 through the inlet pipe 103. The inlet design near the inclined plate 102 allows the wastewater to react quickly with the inclined plate 102. Suspended particles are accelerated to settle and slide to the bottom of the tank using the principle of shallow sedimentation. The perforated plate 501 evenly disperses the inlet water across the entire cross-section of the sedimentation tank, ensuring a smooth and uniform water flow and preventing short-circuiting, thus optimizing the sedimentation effect. After sedimentation, the sludge scraping assembly 2 is activated, driving the bridge 201 to move along the regulating channel 105. This drives the connecting rod 202 and the scraper 203 to scrape the sludge at the bottom of the tank to the designated position. The treated wastewater is discharged through the outlet pipe 104. If the position of the perforated plate 501 needs to be adjusted, the electric push rod 504 can be extended or retracted to push the slider 503 to move within the sliding groove 7, thus moving the perforated plate 501 along the slot 6 and the sliding groove 7 to the designated position.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sedimentation tank for wastewater treatment, comprising a sedimentation tank assembly (1), characterized in that: The sedimentation tank assembly (1) includes a tank body (101). An inclined plate (102) is provided on one side of the bottom surface of the inner wall of the tank body (101). Adjustment grooves (105) are provided on both sides of the outer wall of the tank body (101). A sludge scraping assembly (2) is slidably fitted onto the adjustment grooves (105). The sludge scraping assembly (2) includes a bridge frame (201). A connecting rod (202) is provided at the bottom end of the bridge frame (201). A scraper (203) is fixedly installed on the connecting rod (202). (101) Slots (4) are provided on opposite sides of the inner wall near the inclined plate (102). A baffle (3) is inserted into the slot (4). A perforated plate assembly (5) is fixedly connected to the bottom of the baffle (3). The perforated plate assembly (5) includes a perforated plate (501). A locking block (502) is provided at one end of the perforated plate (501). A slider (503) is provided in the middle of opposite sides of the perforated plate (501). An electric push rod (504) is installed on the bottom surface of the slider (503).

2. A sedimentation tank for wastewater treatment according to claim 1, characterized in that, The pool body (101) is a rectangular pool with an open top surface. The pool body (101) has an inlet and an outlet at opposite ends. An inlet pipe (103) is fixedly installed through the inlet, and an outlet pipe (104) is fixedly installed through the outlet. The inlet pipe (103) is located at one end near the inclined plate (102).

3. A sedimentation tank for wastewater treatment according to claim 1, characterized in that, The cable tray (201) is arranged in an inverted "U" shape. The two extensions of the inverted "U" shape of the cable tray (201) are respectively provided with sliding blocks. The sliding blocks are slidably engaged on the adjustment groove (105). The connecting rod (202) and the scraper (203) are both located inside the pool body (101). The bottom end of the scraper (203) is abutted against the bottom surface of the inner wall of the pool body (101).

4. A sedimentation tank for wastewater treatment according to claim 2, characterized in that, The inner wall of the pool body (101) is provided with two corners near the water inlet. The pool body (101) where the slot (4) and the slot (6) are located is provided with a sliding groove (7) on the middle of opposite sides. The card block (502) and the slider (503) are respectively slidably engaged in the slot (6) and the sliding groove (7).

5. A sedimentation tank for wastewater treatment according to claim 4, characterized in that, The baffle (3) and the perforated plate (501) are combined in an "L" shape. The perforated plate (501) has several rows of through holes. The perforated plate (501) is located below the water inlet. The bottom end of the electric push rod (504) is abutted against the bottom surface of the inner wall of the chute (7).

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