A wastewater quality fluctuation treatment device

Abstract

This invention provides a wastewater quality fluctuation treatment device, including a frame, a sedimentation unit, and a controller. The sedimentation unit includes multiple sedimentation tanks connected to adjacent tanks via overflow channels. Each overflow channel outlet is equipped with a turbidity sensor. A moving mechanism is located on the top of the frame, with a first electric actuator connected to its bottom. The telescopic end of the moving mechanism is connected to a support plate. A immersion sensor and a second electric actuator are located on the bottom surface of the support plate. A lifting plate is connected to the telescopic end of the second electric actuator. A filter cover and a turbidity sensor are located on the top surface of the lifting plate. One end of a water pipe is connected to the filter cover, and the other end is connected to a collection tank. A water pump is installed on the water pipe. This invention determines water quality fluctuations based on the turbidity detected by the turbidity sensor during wastewater overflow and extracts wastewater with acceptable turbidity, thus reserving a larger volume for sedimentation treatment of wastewater with large quality fluctuations. This avoids affecting the overall turbidity of the sedimentation tanks and is beneficial to the subsequent biological treatment effect of the wastewater.

Description

Technical Field

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

[0002] Wastewater refers to water bodies that have lost their original function due to human production and daily life activities. Its composition is complex, containing pollutants such as organic matter, inorganic salts, heavy metals, nitrogen and phosphorus nutrients, and pathogenic microorganisms. Industrial wastewater, due to differences in production processes, may contain highly toxic substances such as heavy metals, cyanides, and phenols. Direct discharge of untreated wastewater can cause environmental problems such as black and odorous water bodies, soil compaction, and disruption of the food chain, posing a potential threat to human health.

[0003] During heavy rains or when industrial wastewater surges in, a large amount of sewage enters the sedimentation tank. When the maximum treatment capacity of the sedimentation tank is reached, sewage overflow occurs. The sewage contains a large amount of suspended solids, has a high turbidity, and fluctuates significantly in water quality within the sedimentation tank. As a result, the effluent from the sedimentation tank cannot consistently meet the standards, affecting the effectiveness of subsequent biological treatment of the sewage. Utility Model Content

[0004] In view of this, the present invention proposes a wastewater quality fluctuation treatment device to solve the problems mentioned above.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A wastewater quality fluctuation treatment device includes a frame, a sedimentation unit, and a controller. The sedimentation unit is located below the frame and includes multiple sedimentation tanks connected sequentially in a horizontal direction. Adjacent sedimentation tanks are connected by overflow channels with decreasing heights. A turbidity sensor is provided at the outlet of each overflow channel. A moving mechanism is provided at the top of the frame. A first electric actuator is connected to the bottom of the moving mechanism, and its telescopic end is connected to a support plate. A immersion sensor and a second electric actuator are provided on the bottom surface of the support plate. A lifting plate is connected to the telescopic end of the second electric actuator. A filter cover and a turbidity sensor are provided on the top surface of the lifting plate. The filter cover has multiple sieve holes. A water pipe is provided at the top of the frame. One end of the water pipe passes through the side wall of the frame and extends to connect to the filter cover. The other end is connected to a water collection tank located on the side of the frame. A water pump is provided on the water pipe. The controller is located on the side of the frame and is electrically connected to the moving mechanism, the first electric actuator, the immersion sensor, the second electric actuator, and the water pump.

[0007] Preferably, the moving mechanism includes a lead screw, a drive motor, and a moving block. The lead screw is rotatably mounted on the bottom of the frame, with one end rotatably connected to the frame and the other end passing through the frame and connected to the drive motor. The drive motor is located on the side of the frame, and the moving block is mounted on the lead screw.

[0008] Preferably, the system also includes a main sewage discharge pipe and branch sewage discharge pipes. The main sewage discharge pipe is located below the bottom of the sedimentation tank, and the bottom of the sedimentation tank is provided with branch sewage discharge pipes. All branch sewage discharge pipes are connected to the main sewage discharge pipe, and each branch sewage discharge pipe is provided with a sewage discharge valve.

[0009] Preferably, the bottom of the sedimentation tank is provided with an inclined section, and the lowest point of the inclined section is connected to the sewage discharge pipe.

[0010] Preferably, the water pipe is a flexible, expandable corrugated pipe.

[0011] Preferably, the system also includes support legs, which are located on the bottom surface of the sedimentation tank.

[0012] Preferably, a water inlet valve is also included, which is located on the water inlet pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a sedimentation unit comprising multiple sedimentation tanks. Through the sedimentation of wastewater in these multi-stage tanks, the concentration of suspended solids and turbidity of the wastewater are progressively reduced. When dealing with the impact of abnormal fluctuations in water quality and quantity, a turbidity sensor detects the turbidity of overflowing wastewater. Driven by a moving mechanism, the water quality in the sedimentation tanks is monitored, and wastewater with acceptable turbidity is extracted and collected in a water tank. This provides a larger volume for sedimentation treatment of wastewater with significant quality fluctuations, preventing these fluctuations from affecting the overall turbidity of the sedimentation tanks and improving the subsequent biochemical treatment effect of the wastewater. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional structural diagram of a wastewater quality fluctuation treatment device according to the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Reference numerals: 1. Frame; 2. Sedimentation tank; 3. Overflow channel; 4. Inlet pipe; 5. Inlet valve; 6. Lead screw; 7. Drive motor; 8. Moving block; 9. First electric actuator; 10. Main drain pipe; 11. Branch drain pipe; 12. Inclined section; 13. Screen hole; 14. Turbidity sensor; 15. Drain valve; 16. Support leg; 17. Water collection tank; 18. Water pipe; 19. Water pump; 20. Controller; 21. Support plate; 22. Immersion sensor; 23. Second electric actuator; 24. Lifting plate; 25. Filter cover. Detailed Implementation

[0019] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0020] See Figures 1 to 2 This utility model provides a wastewater quality fluctuation treatment device, including a frame 1, a sedimentation unit, and a controller 20. The sedimentation unit is located below the frame 1 and includes multiple sedimentation tanks 2 connected sequentially in a horizontal direction. Adjacent sedimentation tanks 2 are connected by overflow channels 3 with decreasing heights. A turbidity sensor 14 is provided at the outlet of each overflow channel 3. A moving mechanism is provided at the top of the frame 1, and a first electric actuator 9 is connected to the bottom of the moving mechanism. The telescopic end of the first electric actuator 9 is connected to a support plate 21. A water immersion sensor 22 and a second electric actuator 23 are provided on the bottom surface of the support plate 21. The telescopic end of the second electric actuator 23... A lifting plate 24 is connected, and a filter cover 25 and a turbidity sensor 14 are provided on the top surface of the lifting plate 24. The filter cover 25 is provided with multiple sieve holes 13. A water pipe 18 is provided on the top of the frame 1. One end of the water pipe 18 passes through the side wall of the frame 1 and extends to connect with the filter cover 25. The other end is connected to a water collection tank 17. The water collection tank 17 is located on the side of the frame 1. A water pump 19 is provided on the water pipe 18. The controller 20 is located on the side of the frame 1 and is electrically connected to the moving mechanism, the first electric push rod 9, the immersion sensor 22, the second electric push rod 23 and the water pump 19. The controller 20 adopts a low-power microprocessor of model STM32-L0.

[0021] When sedimentation tank 2 is operating normally, wastewater enters the first sedimentation tank 2 from the inlet pipe 4 at a predetermined flow rate. The wastewater undergoes sedimentation treatment in the first sedimentation tank 2, and larger suspended solids in the wastewater settle at the bottom. When the maximum treatment capacity of the first sedimentation tank 2 is reached, the wastewater flows into the second sedimentation tank 2 from the overflow channel 3. At this time, the turbidity sensor 14 installed at the outlet of the overflow channel 3 detects the turbidity of the wastewater and transmits the detection value to the controller 20. The wastewater enters the second sedimentation tank 2 for further sedimentation treatment. Then, when the maximum treatment capacity of the second sedimentation tank 2 is reached, the wastewater flows into the third sedimentation tank 2 from the overflow channel 3. At the same time, the turbidity sensor 14 detects the turbidity of the wastewater and transmits the detection value to the controller 20. The same steps are repeated until the wastewater enters the last sedimentation tank 2 for sedimentation treatment, ensuring that the turbidity of the wastewater entering the last sedimentation tank 2 is at the preset value. When a large amount of sewage enters the first sedimentation tank 2 from the inlet pipe 4, the sewage undergoes sedimentation treatment in the first sedimentation tank 2. The sewage contains a large amount of suspended solids, resulting in high turbidity and significant fluctuations in water quality within sedimentation tank 2. This can cause the turbidity of the sewage entering the second sedimentation tank 2 to exceed a preset value. To avoid affecting the subsequent sedimentation tank 2, a moving mechanism is activated, driving the first electric actuator 9 to move. The first electric actuator 9 moves above the second sedimentation tank 2 and is then activated. The extension end of the first electric actuator 9 extends, causing the support plate 21 to descend. When the immersion sensor 22 contacts the liquid surface, the first electric actuator 9 stops, and simultaneously, the turbidity sensor 14 is activated to detect the sewage. When the turbidity of the wastewater meets the standard, the second electric actuator 23 is activated. The extension end of the second electric actuator 23 extends, causing the lifting plate 24 to descend. The descent of the lifting plate 24 causes the turbidity sensor 14 to descend continuously. When the turbidity sensor 14 detects that the turbidity value exceeds the upper limit of the standard turbidity for the second sedimentation tank 2, the second electric actuator 23 is stopped, and the water pump 19 is started. Wastewater enters the water pipe 18 from the filter cover 25 and flows into the collection tank 17 through the water pipe 18. Then, wastewater from other sedimentation tanks 2 that meets the turbidity standard is pumped into the collection tank 17 in advance, thereby reserving a larger volume for wastewater sedimentation treatment and avoiding water quality fluctuations from affecting the treatment turbidity of all sedimentation tanks 2, which is beneficial to the subsequent biological treatment effect of wastewater.

[0022] Preferably, the moving mechanism includes a lead screw 6, a drive motor 7, and a moving block 8. The lead screw 6 is rotatably mounted on the bottom of the frame 1, with one end rotatably connected to the frame 1 and the other end passing through the frame 1 and driving the drive motor 7. The drive motor 7 is located on the side of the frame 1 and is a stepper motor model capable of precisely controlling the rotation angle, providing a power source for the moving mechanism. The speed and direction of the drive motor 7 can be adjusted by a control system to enable the moving block 8 to move at different speeds and in different directions. The moving block 8 is mounted on the lead screw 6.

[0023] When the moving mechanism is started, the drive motor 7 is started first. The drive motor 7 drives the lead screw 6 to rotate by outputting torque. The lead screw 6 and the moving block 8 are threadedly connected, thereby controlling the moving block 8 to move along the axis of the lead screw 6. The moving block 8 carries the first electric push rod 9 and realizes linear motion.

[0024] Preferably, the system also includes a main sewage discharge pipe 10 and branch sewage discharge pipes 11. The main sewage discharge pipe 10 is located below the bottom of the sedimentation tank 2, and the bottom of the sedimentation tank 2 is provided with branch sewage discharge pipes 11. Each branch sewage discharge pipe 11 is connected to the main sewage discharge pipe 10, and each branch sewage discharge pipe 11 is provided with a sewage discharge valve 15.

[0025] In actual operation, depending on the sludge deposition at the bottom of different sedimentation tanks 2, the corresponding drain valve 15 is opened. The sludge and other pollutants at the bottom of sedimentation tanks 2 can be quickly collected into the main drain pipe 10 through the drain branch pipe 11, and then discharged into the treatment device by the main drain pipe 10.

[0026] Preferably, the bottom of the sedimentation tank 2 is provided with an inclined section 12, and the lowest point of the inclined section 12 is connected to the sewage branch pipe 11.

[0027] After the wastewater enters the sedimentation tank 2, the suspended solids will gradually settle to the bottom under the action of gravity. Since the bottom of the sedimentation tank 2 is set as an inclined part 12, the sediment will slide or roll along the inclined part 12 to the lowest point. The lowest point of the inclined part 12 is connected to the sewage discharge pipe 11. In this way, the sediment can be smoothly collected at the sewage discharge pipe 11, which makes it convenient to discharge the sediment from the sedimentation tank 2 through the sewage discharge pipe 11, thereby ensuring the normal operation and treatment effect of the sedimentation tank 2.

[0028] Preferably, the water pipe 18 is a flexible, expandable corrugated pipe.

[0029] When the concentration of pollutants in the wastewater suddenly increases, the wastewater quality fluctuates. At this time, the moving mechanism is activated, which drives the first electric actuator 9 to move. The telescopic end of the first electric actuator 9 extends, causing the bearing plate 21 to descend and detect each sedimentation tank 2. Wastewater that meets the turbidity requirements is extracted and transported to the collection tank 17. The residence time of suspended solids in each sedimentation tank 2 is adjusted. The flexible and telescopic corrugated pipe can easily change the length and direction of the water pipe 18 to adapt to the constantly changing position in the treatment process, ensuring that the wastewater treatment can flow smoothly according to the new treatment requirements.

[0030] Preferably, a support leg 16 is also included, which is disposed on the bottom surface of the sedimentation tank 2.

[0031] The support leg 16 provides reliable support for the sedimentation unit, which can maintain a stable state during operation.

[0032] Preferably, a water inlet valve 5 is also included, which is disposed on the water inlet pipe 4.

[0033] Fluctuations in wastewater quality can lead to significant differences in the amount of water entering the treatment unit at different times. The inlet valve 5, located on the inlet pipe 4, can precisely adjust the wastewater flow rate into the unit based on its processing capacity and current water quality. When the treatment unit is operating near full capacity, the inlet valve 5 can be closed to reduce the inflow and prevent overloading from affecting the treatment effect or damaging the equipment. Conversely, when the water quality is good and the treatment unit has spare capacity, the inlet valve 5 can be opened wider to improve treatment efficiency.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sewage water quality fluctuation treatment device characterized by comprising: The system includes a frame, a sedimentation unit, and a controller. The sedimentation unit is located below the frame and includes multiple sedimentation tanks connected sequentially in a horizontal direction. Adjacent sedimentation tanks are connected by overflow channels with decreasing heights. Each overflow channel outlet is equipped with a turbidity sensor. A moving mechanism is located at the top of the frame. A first electric actuator is connected to the bottom of the moving mechanism, and its telescopic end is connected to a support plate. A water immersion sensor and a second electric actuator are located on the bottom surface of the support plate. The telescopic end of the second electric actuator is connected to a lifting plate. A filter cover and a turbidity sensor are located on the top surface of the lifting plate. The filter cover has multiple sieve holes. A water pipe is located at the top of the frame. One end of the water pipe passes through the side wall of the frame and extends to connect to the filter cover. The other end is connected to a water collection tank located on the side of the frame. A water pump is installed on the water pipe. The controller is located on the side of the frame and is electrically connected to the moving mechanism, the first electric actuator, the water immersion sensor, the second electric actuator, and the water pump.

2. The wastewater quality fluctuation treatment device according to claim 1, characterized in that, The moving mechanism includes a lead screw, a drive motor, and a moving block. The lead screw is rotatably mounted at the bottom of the frame, with one end rotatably connected to the frame and the other end passing through the frame and connected to the drive motor. The drive motor is located on the side of the frame, and the moving block is mounted on the lead screw.

3. The wastewater quality fluctuation treatment device according to claim 1, characterized in that, It also includes a main sewage discharge pipe and branch sewage discharge pipes. The main sewage discharge pipe is located below the bottom of the sedimentation tank. Branch sewage discharge pipes are located at the bottom of the sedimentation tank. All branch sewage discharge pipes are connected to the main sewage discharge pipe. Each branch sewage discharge pipe is equipped with a sewage discharge valve.

4. The wastewater quality fluctuation treatment device according to claim 3, characterized in that, The bottom of the sedimentation tank is provided with an inclined section, and the lowest point of the inclined section is connected to the sewage discharge pipe.

5. The wastewater quality fluctuation treatment device according to claim 1, characterized in that, The water pipe is a flexible, expandable corrugated pipe.

6. The wastewater quality fluctuation treatment device according to claim 1, characterized in that, It also includes support legs, which are located on the bottom surface of the sedimentation tank.

7. The wastewater quality fluctuation treatment device according to claim 1, characterized in that, It also includes a water inlet valve, which is located on the water inlet pipe.

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