Culvert construction wastewater treatment equipment
By employing a combination of gears and stirring rods in the wastewater treatment equipment, the problem of flocculant agglomeration and sedimentation was solved, achieving full integration of the flocculant and wastewater and improving wastewater treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINHUANGDAO LINGHANG WATER TREATMENT CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-15
AI Technical Summary
Existing wastewater treatment equipment lacks a good stirring structure, which may cause flocculants to clump together and form sediment after entering the wastewater tank, reducing wastewater treatment efficiency.
A wastewater treatment device for culvert construction was designed, which adopts a combination structure of gear-driven toothed plate and stirring rod. The counterclockwise rotation of the gear drives the toothed plate to move down and reset under the action of the support spring, realizing the up-and-down reciprocating motion of the stirring rod. At the same time, the stirring disc reciprocates up and down under the action of water buoyancy and the adjusting spring, which enhances the fusion effect of flocculant and wastewater.
The improved mixing structure enhances the mixing efficiency of flocculant and wastewater, thereby improving wastewater treatment efficiency.
Smart Images

Figure CN224242829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a wastewater treatment device, and more particularly to a wastewater treatment device for culvert construction. Background Technology
[0002] A culvert is a drainage channel (water passage) built under the roadbed and below the road surface in highway construction to allow water to flow under the highway without obstructing traffic. This structure allows water to flow under the highway. Various types of waste are generated during the construction of culverts, such as construction waste, wastewater, and waste oil. Wastewater treatment equipment is used to treat the wastewater.
[0003] When treating wastewater, the silt and sand in the wastewater are first filtered out. Then, a flocculant is added to the wastewater and mixed with it, thereby accelerating the coagulation of solid particles and organic matter in the wastewater, making them larger particles that are easier to settle or filter and separate.
[0004] However, existing wastewater treatment equipment lacks a good mixing structure, resulting in poor mixing effect. After the flocculant enters the wastewater tank, it may clump together and produce sediment, which prevents the flocculant from mixing well with the wastewater, resulting in a slow reaction speed and delaying the wastewater treatment progress. Utility Model Content
[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that the existing wastewater treatment equipment lacks a good stirring structure, resulting in poor stirring effect. After the flocculant enters the wastewater tank, it may clump together and produce sediment, which prevents the flocculant from mixing well with the wastewater, thereby reducing the wastewater treatment efficiency.
[0006] To address the aforementioned problems, this utility model provides a wastewater treatment device for culvert construction, comprising a treatment tank. Multiple telescopic hoses are fixedly connected to the inner bottom wall of the treatment tank. A stirring rod is mounted on the upper end of each telescopic hose. The lower end of the stirring rod passes through the telescopic hose and the treatment tank, extending to the bottom of the treatment tank. A positioning plate is fixedly connected to the outer surface of the stirring rod. Two support springs are fixedly connected to the upper end of the positioning plate, and the upper ends of the support springs are fixedly connected to the lower end of the treatment tank. A toothed plate is also fixedly connected to the outer surface of the stirring rod, located below the positioning plate. Two fixed... The mixing rod is located between two fixed plates. Multiple rotating shafts, each corresponding to a mixing rod, are rotatably connected between the two fixed plates. Gears are fixedly fitted on the outer ring of the rotating shafts, and the gears mesh with gear plates. A motor is fixedly connected to the front end of the front fixed plate. The output end of the motor moves through the fixed plate and is fixedly connected to the leftmost rotating shaft. A pulley set is fitted on the outer ring of the multiple rotating shafts. An inlet pipe and a feed pipe are fixedly connected to the upper end of the processing tank. A sealing plug is inserted into the upper end of the feed pipe. A water outlet pipe is fixedly connected to the lower right end of the processing tank. An electric valve is fixedly installed on the outer ring of the water outlet pipe.
[0007] In the aforementioned wastewater treatment equipment for culvert construction, after the flocculant is added to the treatment tank, the gear drives the toothed plate to move, causing the stirring rod to reciprocate up and down, thereby increasing the stirring effect, allowing the flocculant to fully mix with the wastewater, and improving the efficiency of wastewater treatment.
[0008] As a further improvement of this application, the stirring rod includes a lifting rod located between two support springs. The outer ring of the lifting rod is fitted with two stirring discs and an adjusting spring. A limit block is fixedly connected to the upper end of the lifting rod.
[0009] As a further improvement to this application, the lower stirring plate is fixedly sleeved on the outer ring of the lifting rod, and the upper stirring plate is slidably sleeved on the outer ring of the lifting rod. The two ends of the adjusting spring are fixedly connected to the two stirring plates respectively.
[0010] As a further improvement of this application, the stirring plate includes two rings, Ring 1 and Ring 2, with different diameters. Multiple positioning rods are fixedly connected between Ring 1 and Ring 2. The inner wall of Ring 1 is in contact with the outer surface of the lifting rod. The multiple positioning rods are arranged in a ring array around the central axis of Ring 1.
[0011] As a further improvement of this application, the gear includes a circular plate and a plurality of tooth blocks, the tooth blocks being trapezoidal, and the plurality of tooth blocks being distributed radially on the circular plate at no more than 180 degrees.
[0012] As another improvement of this application, a transfer box is fixedly connected to the right end of the water outlet pipe via a flange, a filter screen is fixedly connected to the inner bottom wall of the transfer box, and a water outlet hopper is fixedly connected to the right end of the transfer box.
[0013] In summary, in practical applications, wastewater enters the treatment tank through the inlet pipe, while flocculant is fed into the tank through the feed pipe. The motor is started, driving the rotating shafts to rotate. The pulley system causes multiple shafts to rotate simultaneously, which in turn drives the gears to rotate counter-clockwise. This, in turn, moves the gear plate downwards. When the gears are not engaged with the gear plate, the gear plate moves upwards to its original position under the action of the support spring, thereby driving the stirring rod to move up and down. The upper stirring disc also reciprocates up and down under the buoyancy of the water and the action of the adjusting spring, thus increasing the stirring effect, allowing the flocculant and wastewater to fully mix, and improving wastewater treatment efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the first embodiment of this application;
[0015] Figure 2 This is a structural cross-sectional view of the first embodiment of this application;
[0016] Figure 3 This is a schematic diagram of the toothed plate structure according to the first embodiment of this application;
[0017] Figure 4 This is a schematic diagram of the gear structure according to the first embodiment of this application;
[0018] Figure 5 This is a schematic diagram of the stirring rod structure according to the first embodiment of this application;
[0019] Figure 6 This is a schematic diagram of the structure of the second embodiment of this application;
[0020] Figure 7 This is a schematic diagram of the transfer box structure according to the second embodiment of this application.
[0021] Explanation of the labels in the diagram:
[0022] 1. Processing box, 2. Telescopic hose, 3. Stirring rod, 301. Lifting rod, 302. Stirring plate, 303. Adjusting spring, 304. Limiting block, 4. Positioning plate, 5. Supporting spring, 6. Toothed plate, 7. Fixing plate, 8. Rotating shaft, 9. Gear, 10. Motor, 11. Belt pulley assembly, 12. Feed pipe, 13. Water outlet pipe, 14. Transfer box, 15. Filter screen, 16. Water outlet hopper. Detailed Implementation
[0023] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0024] First implementation method:
[0025] Figure 1 and Figure 2The diagram shows a wastewater treatment device for culvert construction, comprising a treatment tank 1. Multiple telescopic hoses 2 are fixedly connected to the inner bottom wall of the treatment tank 1. The telescopic hoses 2 wrap around a stirring rod 3 to effectively prevent wastewater leakage. The upper end of the telescopic hose 2 is equipped with the stirring rod 3. The lower end of the stirring rod 3 passes through the telescopic hose 2 and the treatment tank 1 sequentially and extends to the bottom of the treatment tank 1. A positioning plate 4 is fixedly connected to the outer surface of the stirring rod 3. Two support springs 5 are fixedly connected to the upper end of the positioning plate 4. The upper ends of the support springs 5 are fixedly connected to the lower end of the treatment tank 1. An inlet pipe and a feed pipe 12 are fixedly connected to the upper end of the treatment tank 1. A sealing plug is inserted into the upper end of the feed pipe 12. A water outlet pipe 13 is fixedly connected to the lower right end of the treatment tank 1. An electric valve is fixedly installed on the outer ring of the water outlet pipe 13. Those skilled in the art can select a suitable model of electric valve according to actual needs, such as D341X-10C.
[0026] Figure 3 and Figure 4 As shown: A toothed plate 6 is fixedly connected to the outer surface of the stirring rod 3. The toothed plate 6 is located below the positioning plate 4. Two fixing plates 7 are fixedly connected to the lower end of the processing box 1. The stirring rod 3 is located between the two fixing plates 7. Multiple rotating shafts 8, each corresponding to a multiple stirring rod 3, are rotatably connected between the two fixing plates 7. Gears 9 are fixedly sleeved on the outer ring of the rotating shafts 8. The gears 9 mesh with the toothed plate 6. A motor 10 is fixedly connected to the front end of the front fixing plate 7. Those skilled in the art can select a suitable model of motor 10 according to actual needs, such as Y2-63. The output end of the M1-2-0.18KW motor 10 passes through the fixed plate 7 and is fixedly connected to the leftmost rotating shaft 8. The outer rings of multiple rotating shafts 8 are fitted with a pulley group 11. The gear 9 includes a circular plate and multiple tooth blocks. The tooth blocks are trapezoidal, and the radial distribution of multiple tooth blocks on the circular plate does not exceed 180 degrees. The gear 9 rotates counterclockwise, causing the tooth plate 6 to move downward. Since the number of tooth blocks on the gear 9 is limited, when the gear 9 is not meshing with the tooth plate 6, the support spring 5 drives the tooth plate 6 to reset, thereby causing the stirring rod 3 to reciprocate up and down in the processing box 1.
[0027] Figure 5The stirring rod 3 includes a lifting rod 301 located between two support springs 5. Two stirring discs 302 and an adjusting spring 303 are fitted around the outer ring of the lifting rod 301. A limit block 304 is fixedly connected to the upper end of the lifting rod 301. The lower stirring disc 302 is fixedly fitted around the outer ring of the lifting rod 301, and the upper stirring disc 302 is slidably fitted around the outer ring of the lifting rod 301. Both ends of the adjusting spring 303 are fixedly connected to the two stirring discs 302 respectively. Each stirring disc 302 includes two circles with different diameters. Ring 1 and Ring 2 are fixedly connected by multiple positioning rods. The inner wall of Ring 1 is in contact with the outer surface of the lifting rod 301. The multiple positioning rods are arranged in a ring array around the central axis of Ring 1. When the lifting rod 301 moves up and down, the stirring plate 302 below also moves up and down. Under the buoyancy of the water and the action of the adjusting spring 303, the stirring plate 302 above moves up and down irregularly. This crushes the flocculant, which clumps together and produces sediment after entering the wastewater tank, so that the flocculant and wastewater are fully mixed.
[0028] In use, wastewater enters the treatment tank 1 through the inlet pipe, and flocculant is added to the treatment tank 1 through the feed pipe 12. The motor 10 is started to drive the rotating shaft 8 to rotate. The pulley group 11 causes multiple rotating shafts 8 to rotate simultaneously, thereby driving the gear 9 to rotate counterclockwise, which in turn drives the toothed plate 6 to move downward. When the gear 9 is not meshing with the toothed plate 6, the toothed plate 6 moves upward and resets under the action of the support spring 5, thereby driving the stirring rod 3 to move up and down. The stirring plate 302 above also moves up and down reciprocally under the action of the buoyancy of the water and the adjustment spring 303, thereby increasing the stirring effect, making the flocculant and wastewater fully mixed, and improving the wastewater treatment efficiency.
[0029] Second implementation method:
[0030] This embodiment adds a transfer box 14, a filter screen 15, and a water outlet 16 to the first embodiment, while the rest remains the same as the first embodiment.
[0031] Figure 6 and Figure 7 As shown: the right end of the water outlet pipe 13 is fixedly connected to the transfer box 14 via a flange, the inner bottom wall of the transfer box 14 is fixedly connected to the filter screen 15, and the right end of the transfer box 14 is fixedly connected to the water outlet 16.
[0032] In use, after the treated wastewater is discharged through the outlet pipe 13, it enters the transfer box 14, where the filter screen 15 filters out large particles in the wastewater, and then it is discharged through the outlet hopper 16, thereby reducing the number of wastewater treatment steps and improving wastewater treatment efficiency.
[0033] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.
Claims
1. A wastewater treatment device for culvert construction, comprising a treatment tank (1), characterized in that: The inner bottom wall of the processing tank (1) is fixedly connected with multiple telescopic hoses (2). The upper end of the telescopic hoses (2) is provided with a stirring rod (3). The lower end of the stirring rod (3) passes through the telescopic hoses (2) and the processing tank (1) in sequence and extends to the bottom of the processing tank (1). The outer surface of the stirring rod (3) is fixedly connected with a positioning plate (4). The upper end of the positioning plate (4) is fixedly connected with two support springs (5). The upper end of the support springs (5) is fixedly connected to the lower end of the processing tank (1). The outer surface of the stirring rod (3) is also fixedly connected to a toothed plate (6). The toothed plate (6) is located below the positioning plate (4). The lower end of the processing box (1) is fixedly connected to two fixed plates (7). The stirring rod (3) is located between the two fixed plates (7). Multiple rotating shafts (8) corresponding to multiple stirring rods (3) are rotatably connected between the two fixed plates (7). The outer ring of the rotating shaft (8) is fixedly fitted with a gear (9). The gear (9) meshes with the toothed plate (6). The front end of the fixed plate (7) is fixedly connected to a motor (10). The output end of the motor (10) moves through the fixed plate (7) and is fixedly connected to the leftmost rotating shaft (8). The outer rings of multiple rotating shafts (8) are jointly fitted with a pulley group (11). The upper end of the treatment tank (1) is fixedly connected to an inlet pipe and a feed pipe (12). A sealing plug is inserted into the upper end of the feed pipe (12). The lower right end of the treatment tank (1) is fixedly connected to a water outlet pipe (13). An electric valve is fixedly installed on the outer ring of the water outlet pipe (13).
2. The culvert construction wastewater treatment equipment according to claim 1, characterized in that: The stirring rod (3) includes a lifting rod (301), which is located between two support springs (5). The outer ring of the lifting rod (301) is fitted with two stirring discs (302) and an adjusting spring (303). The upper end of the lifting rod (301) is fixedly connected to a limit block (304).
3. The culvert construction wastewater treatment equipment according to claim 2, characterized in that: The lower stirring plate (302) is fixedly sleeved on the outer ring of the lifting rod (301), and the upper stirring plate (302) is slidably sleeved on the outer ring of the lifting rod (301). The two ends of the adjusting spring (303) are fixedly connected to the two stirring plates (302) respectively.
4. The culvert construction wastewater treatment equipment according to claim 3, characterized in that: The stirring plate (302) includes two rings of different diameters, a first ring and a second ring. Multiple positioning rods are fixedly connected between the first ring and the second ring. The inner wall of the first ring is in contact with the outer surface of the lifting rod (301). The multiple positioning rods are arranged in a ring array around the central axis of the first ring.
5. The culvert construction wastewater treatment equipment according to claim 1, characterized in that: The gear (9) includes a circular plate and multiple tooth blocks, the tooth blocks being trapezoidal, and the multiple tooth blocks being distributed radially on the circular plate at no more than 180 degrees.
6. The culvert construction wastewater treatment equipment according to claim 1, characterized in that: The right end of the water outlet pipe (13) is fixedly connected to a transfer box (14) via a flange. A filter screen (15) is fixedly connected to the inner bottom wall of the transfer box (14). A water outlet hopper (16) is fixedly connected to the right end of the transfer box (14).