A sedimentation tank for wastewater treatment

Abstract

This utility model discloses a sedimentation tank for wastewater treatment, relating to the field of wastewater treatment technology. It includes a sedimentation tank, a mounting plate, and a support plate. Three sets of fixed blocks are symmetrically fixed to the top of the support plate. Two adjacent fixed blocks are equipped with an adjustment assembly. The adjustment assembly includes a transmission shaft rotatably connected between the two fixed blocks, passing through the fixed blocks. A toothed ring is fixedly installed at the center of the transmission shaft surface. A U-shaped bracket is fixedly installed to the top of the support plate. Three toothed blocks adapted to the toothed ring are slidably connected to the top of the U-shaped bracket. Threaded rods are installed on the radial inner walls of the toothed blocks through internal and external thread engagement. A stirring assembly is provided at the bottom of the mounting plate. The adjustment assembly allows the stirring assembly to be adjusted at a certain tilt angle during rotation and stirring inside the sedimentation tank, thereby enabling more thorough mixing of the flocculant and wastewater inside the sedimentation tank and enhancing the mixing effect.

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] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering. According to the source of wastewater, wastewater treatment is generally divided into industrial wastewater treatment and domestic wastewater treatment. Industrial wastewater includes industrial wastewater, agricultural wastewater, and medical wastewater, etc.

[0003] In existing wastewater treatment sedimentation tanks, flocculants are typically added to assist sedimentation. Multiple motors are installed above the sedimentation tank to drive the stirring shafts to mix the flocculant and wastewater. However, the stirring rods of the stirring shafts are fixed and can only mix the local water flow and flocculant, resulting in poor mixing effect. To address these issues, a new type of wastewater treatment sedimentation tank is proposed. Utility Model Content

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a sedimentation tank for sewage treatment, comprising a sedimentation tank, a mounting plate, and a support plate. Three sets of fixing blocks are symmetrically fixedly installed on the top of the support plate, and two adjacent fixing blocks are provided with adjustment components. The adjustment components include a transmission shaft rotatably connected between two fixing blocks, and the transmission shaft passes through the fixing blocks. A toothed ring is fixedly installed at the center of the surface of the transmission shaft. A U-shaped bracket is fixedly installed on the top of the support plate. Three toothed blocks adapted to the toothed ring are slidably connected to the top of the U-shaped bracket. A threaded rod is installed on the radial inner wall of the toothed blocks through internal and external thread engagement. A servo motor is fixedly installed on one side of the bottom of the U-shaped bracket. The output end of the servo motor is connected to the threaded rod for transmission. Hanging rods are fixedly installed on both sides of the transmission shaft, and the other side of the hanging rods is connected to the mounting plate.

[0005] Preferably, the bottom end of the mounting plate is provided with a stirring assembly; the stirring assembly includes a rotating shaft rotatably connected to the center position of the bottom end of the mounting plate, a drive motor is fixedly installed at the center position of the top end of the mounting plate, the output end of the drive motor passes through the mounting plate and is connected to the rotating shaft for transmission, and a number of stirring blades are fixedly installed on the surface of the rotating shaft.

[0006] Preferably, the sedimentation tank has grooves on both opposite sides at the top, and threaded blocks are slidably connected inside the grooves. A lead screw is installed on the radial inner wall of the threaded block through internal and external thread engagement. A connecting frame is fixedly installed on the top of the threaded block, and the other side of the connecting frame is connected to the bearing plate.

[0007] Preferably, a water outlet pipe is fixedly installed at one bottom side of the sedimentation tank, and a solenoid valve is fixedly installed on one side of the water outlet pipe.

[0008] Preferably, a frame is fixedly installed at the outlet of the sedimentation tank, and sliding frames are symmetrically fixedly installed on one side of the frame, with a baffle fixedly installed between the two sliding frames.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] The adjustable components allow the stirring components to be tilted at a certain angle during the rotation and stirring process inside the sedimentation tank. This enables the flocculant and wastewater to mix more thoroughly, enhancing the mixing effect. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a side view of the present invention;

[0014] Figure 3 This is a schematic diagram of the adjustment component structure in this utility model;

[0015] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0016] In the diagram: 1. Sedimentation tank; 2. Chute; 3. Lead screw; 4. Threaded block; 5. Connecting frame; 6. Bearing plate; 7. U-shaped bracket; 8. Toothed block; 9. Threaded rod; 10. Fixing block; 11. Drive shaft; 12. Toothed ring; 13. Hanging rod; 14. Mounting plate; 15. Servo motor; 16. Drive motor; 17. Rotating shaft; 18. Agitator blade; 19. Outlet pipe; 20. Solenoid valve; 21. Frame; 22. Sliding frame; 23. Baffle. Detailed Implementation

[0017] 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.

[0018] Example: Figures 1-4 As shown, this utility model provides a sedimentation tank for sewage treatment, including a sedimentation tank 1, a mounting plate 14, and a support plate 6. Three sets of fixing blocks 10 are symmetrically fixedly installed on the top of the support plate 6. Two adjacent fixing blocks 10 are provided with an adjustment assembly. The adjustment assembly includes a transmission shaft 11 rotatably connected between two fixing blocks 10, and the transmission shaft 11 passes through the fixing blocks 10. A toothed ring 12 is fixedly installed at the center of the surface of the transmission shaft 11. A U-shaped bracket 7 is fixedly installed on the top of the support plate 6. Three toothed blocks 8 adapted to the toothed ring 12 are slidably connected to the top of the U-shaped bracket 7. The radial inner wall of the toothed blocks 8 is fitted with screws via internal and external threads. A servo motor 15 is fixedly installed on one side of the bottom of the threaded rod 9 and the U-shaped bracket 7. The output end of the servo motor 15 drives the threaded rod 9 to rotate. The rotating threaded rod 9 interacts with the thread groove on the inner ring surface of the toothed block 8, causing the toothed block 8 to slide at the bottom of the U-shaped bracket 7. During the sliding process, the toothed block 8 interacts with the toothed ring 12 on the surface of the transmission shaft 11, causing the mounting plate 14 at the bottom of the transmission shaft 11 with the hanging rod 13 to change the tilt angle. The output end of the servo motor 15 is connected to the threaded rod 9. The hanging rods 13 are fixedly installed on both sides of the transmission shaft 11, and the other side of the hanging rods 13 is connected to the mounting plate 14.

[0019] The bottom end of the mounting plate 14 is provided with a stirring assembly; the stirring assembly includes a rotating shaft 17 rotatably connected to the center position of the bottom end of the mounting plate 14, and a drive motor 16 is fixedly installed at the center position of the top end of the mounting plate 14. The output end of the drive motor 16 passes through the mounting plate 14 and is connected to the rotating shaft 17 for transmission. Several sets of stirring blades 18 are fixedly installed on the surface of the rotating shaft 17.

[0020] By adopting the above technical solution, after the flocculant is added into the sedimentation tank 1, the drive motor 16 is started to drive the rotating shaft 17 to rotate. During the rotation of the rotating shaft 17, the stirring blades 18 on the surface rotate synchronously inside the sedimentation tank 1, so that the flocculant can be well mixed with the impurities in the sewage.

[0021] The sedimentation tank 1 has grooves 2 on both sides opposite to each other at the top. Threaded blocks 4 are slidably connected inside the grooves 2. A screw rod 3 is installed on the radial inner wall of the threaded block 4 through internal and external thread engagement. A connecting frame 5 is fixedly installed on the top of the threaded block 4. The other side of the connecting frame 5 is connected to the bearing plate 6.

[0022] By adopting the above technical solution, the lead screw 3 rotates under the drive of the built-in power of the sedimentation tank 1. During the rotation of the lead screw 3, it generates a force with the thread groove on the inner ring surface of the threaded block 4, so that the threaded block 4, along the connecting frame 5 and the bearing plate 6, slides longitudinally back and forth at the top of the sedimentation tank 1 along the sliding groove 2.

[0023] A water outlet pipe 19 is fixedly installed at the bottom of one side of the sedimentation tank 1. A solenoid valve 20 is fixedly installed on one side of the water outlet pipe 19. A frame 21 is fixedly installed at the water outlet of the sedimentation tank 1. A sliding frame 22 is symmetrically fixedly installed on one side of the frame 21. A baffle 23 is fixedly installed between the two sliding frames 22.

[0024] By opening the solenoid valve 20 on one side of the outlet pipe 19, the sewage that has settled inside the sedimentation tank 1 can be discharged from the inside of the outlet pipe 19. When it is necessary to clean the sludge and other impurities inside the sedimentation tank 1, the baffle 23 can be pulled out from the inside of the sliding frame 22 to open the sewage outlet of the sedimentation tank 1, and vice versa.

[0025] Working principle: After the flocculant is added into the sedimentation tank 1, the drive motor 16 is started to drive the rotating shaft 17 to rotate. During the rotation of the rotating shaft 17, the stirring blades 18 on its surface rotate synchronously inside the sedimentation tank 1. The output end of the servo motor 15 drives the threaded rod 9 to rotate. The rotating threaded rod 9 interacts with the threaded groove on the inner ring surface of the toothed block 8, causing the toothed block 8 to slide at the bottom end of the U-shaped bracket 7. During the sliding process, the toothed block 8 interacts with the toothed ring 12 on the surface of the drive shaft 11, causing the mounting plate 14 at the bottom end of the suspension rod 13 of the drive shaft 11 to change its tilt angle. The screw 3 is driven by the internal power of the sedimentation tank 1. During the rotation of the lead screw 3, it generates force with the threaded groove on the inner ring surface of the threaded block 4, causing the threaded block 4 to slide longitudinally back and forth at the top of the sedimentation tank 1 along the slide groove 2 via the connecting frame 5 and the bearing plate 6. This allows the flocculant to mix well with the impurities in the sewage. By opening the solenoid valve 20 on one side of the outlet pipe 19, the sewage that has settled inside the sedimentation tank 1 can be discharged from the inside of the outlet pipe 19. When it is necessary to clean the sludge and other impurities inside the sedimentation tank 1, the baffle 23 can be pulled out from the inside of the sliding frame 22 to open the sewage outlet of the sedimentation tank 1, and vice versa.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sedimentation tank for wastewater treatment, comprising a sedimentation tank (1), a mounting plate (14), and a support plate (6), characterized in that: Three sets of fixing blocks (10) are symmetrically fixedly installed on the top of the bearing plate (6). Two adjacent fixing blocks (10) are provided with adjustment components. The adjustment components include a transmission shaft (11) rotatably connected between the two fixing blocks (10), and the transmission shaft (11) passes through the fixing block (10). A toothed ring (12) is fixedly installed at the center of the surface of the transmission shaft (11). A U-shaped bracket (7) is fixedly installed on the top of the bearing plate (6). Three toothed blocks (8) that are adapted to the toothed ring (12) are slidably connected to the top of the U-shaped bracket (7). A threaded rod (9) is installed on the radial inner wall of the toothed block (8) through internal and external thread engagement. A servo motor (15) is fixedly installed on one side of the bottom of the U-shaped bracket (7). The output end of the servo motor (15) is connected to the threaded rod (9) for transmission. Hanging rods (13) are fixedly installed on both sides of the transmission shaft (11). The other side of the hanging rod (13) is connected to the mounting plate (14).

2. A sedimentation tank for wastewater treatment as described in claim 1, characterized in that, The bottom end of the mounting plate (14) is provided with a stirring assembly; the stirring assembly includes a rotating shaft (17) rotatably connected to the center position of the bottom end of the mounting plate (14), and a drive motor (16) is fixedly installed at the center position of the top end of the mounting plate (14). The output end of the drive motor (16) passes through the mounting plate (14) and is connected to the rotating shaft (17) for transmission. Several sets of stirring blades (18) are fixedly installed on the surface of the rotating shaft (17).

3. A sedimentation tank for wastewater treatment as described in claim 2, characterized in that, The sedimentation tank (1) has grooves (2) on both sides opposite to each other at the top. Threaded blocks (4) are slidably connected inside the grooves (2). A screw rod (3) is installed on the radial inner wall of the threaded block (4) through internal and external thread engagement. A connecting frame (5) is fixedly installed on the top of the threaded block (4). The other side of the connecting frame (5) is connected to the bearing plate (6).

4. A sedimentation tank for wastewater treatment as described in claim 1, characterized in that, A water outlet pipe (19) is fixedly installed on one side of the bottom of the sedimentation tank (1), and a solenoid valve (20) is fixedly installed on one side of the water outlet pipe (19).

5. A sedimentation tank for wastewater treatment as described in claim 4, characterized in that, A frame (21) is fixedly installed at the outlet of the sedimentation tank (1), and a sliding frame (22) is symmetrically fixedly installed on one side of the frame (21), and a baffle (23) is fixedly installed between the two sliding frames (22).

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