Self-adaptive efficient coagulating sedimentation integrated device

Abstract

The invention discloses a self-adaptive efficient coagulating sedimentation integrated device, which belongs to the technical field of water treatment, and comprises a tank body, the center of the tank body is coaxially and fixedly connected with a first rectifying cylinder and a guide cylinder from inside to outside; the bottom of the first rectifying cylinder communicates with a water inlet pipe; a first rectifying hole is formed in the first rectifying cylinder; a plurality of folded plates in a circular array are fixedly connected to the outer wall of the first rectifying cylinder, and the distance between every two adjacent folded plates is gradually increased from the first rectifying cylinder to the outside; a settling zone is arranged between the side wall of the guide cylinder and the tank body, a sludge zone is arranged between the bottom surface of the guide cylinder and the tank body, and a drain outlet is formed in the bottom of the sludge zone; an effluent collecting device is arranged at the top of the settling zone. All the parts work cooperatively, the structure is compact, the occupied area is small, the treatment efficiency is high, the water quality can be effectively improved in the water treatment process, and the operation cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment, and in particular relates to an adaptive high-efficiency coagulation and sedimentation integrated device. Background Art

[0002] Coagulation-sedimentation is a key process unit in the field of water treatment. Its principle is to add coagulants to make colloids and fine suspended particles in the water aggregate to form flocs that are easy to separate. In the subsequent sedimentation process, they rely on gravity to settle. Its efficiency directly affects the load of subsequent treatment processes and the final effluent water quality. Traditional processes often use a series mode of "mixing + flocculation reaction tank + sedimentation tank". However, traditional processes have some problems in dealing with complex water quality fluctuations, achieving refined control, and energy saving and consumption reduction. Specifically,

[0003] (1) Poor coupling between flocculation reaction and sedimentation: In traditional devices, the flocculation reaction zone and the sedimentation zone are physically separated. During the transition stage, the flocs are partially broken due to the sudden change of hydraulic shear force, forcing the sedimentation zone to be equipped with additional rectification facilities.

[0004] (2) Insufficient dynamic adaptability: Existing coagulation-sedimentation devices mostly operate with fixed parameters and are unable to optimize operating conditions in real time based on variables such as influent turbidity and temperature.

[0005] (3) Energy consumption and reagent loss are prominent: the pipeline mixing device has the problem of uneven reagent dispersion, which leads to reagent waste and long reaction time, while mechanical mixing has the problem of high energy consumption.

[0006] Therefore, there is an urgent need to develop an adaptive and efficient integrated coagulation and sedimentation device to meet the requirements of efficient and stable operation in complex scenarios. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention proposes an adaptive high-efficiency coagulation and sedimentation integrated device.

[0008] To achieve the above-mentioned objectives, the present invention provides an adaptive high-efficiency coagulation and sedimentation integrated device, comprising: a tank body, wherein a first straightening cylinder and a guide cylinder are coaxially fixed from the inside to the outside at the center of the tank body; a water inlet pipe is connected to the bottom of the first straightening cylinder; a first straightening hole is provided on the first straightening cylinder; a plurality of folding plates in a circular array are fixed to the outer wall of the first straightening cylinder, and the distance between adjacent folding plates gradually increases from the first straightening cylinder to the outside; a sedimentation area is provided between the side wall of the guide cylinder and the tank body, a sludge area is provided between the bottom surface of the guide cylinder and the tank body, and a sewage outlet is provided at the bottom of the sludge area; a water outlet and water collection device is provided at the top of the sedimentation area.

[0009] Preferably, a second straightening cylinder is provided between the first straightening cylinder and the guide cylinder, the inner wall of the second straightening cylinder is fixedly connected to the outer ends of the plurality of folding plates, and the second straightening cylinder is provided with a plurality of second straightening holes.

[0010] Preferably, a driving device is provided on the top of the pool body, and a stirring rod is fixedly connected to the output end of the driving device, and the stirring rod extends into the interior of the first rectifier cylinder.

[0011] Preferably, the bottom surface of the tank body is conical, the sludge area is located inside the cone, and the sewage outlet is opened at the bottom of the cone.

[0012] Preferably, the first rectifier tube, the plurality of folding plates and the second rectifier tube are fixedly connected as a whole, and the bottom is fixed by a bracket, and the bottom of the bracket is fixed to the bottom surface of the pool body.

[0013] Preferably, the number and shape of the first rectifying holes make the water flow velocity through the first rectifying cylinder 0.2-0.3 m / s; the number and shape of the second rectifying holes make the water flow velocity through the second rectifying cylinder 0.1-0.15 m / s.

[0014] Preferably, it also includes an intelligent dosing system, which includes a detection component, a controller and a drug dosing unit; the detection component is used to detect the water inlet state and the flocculation state, and transmit the detected information to the controller through an electrical signal, and the controller controls the drug dosing unit to add the drug into the water inlet pipe.

[0015] Preferably, the detection component includes a water quality sensing unit, which is fixedly installed at the front end of the dosing port of the water inlet pipe, and is electrically connected to the controller.

[0016] Preferably, the water quality sensing unit includes four sensors for measuring flow, turbidity, pH, and temperature.

[0017] Preferably, the detection component further includes an image acquisition sensor, which is fixedly mounted on the outside of the second fairing cylinder. The image acquisition sensor is electrically connected to an image processing system, and the image processing system is electrically connected to the controller.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] The water inlet pipe is connected to the bottom of the first straightening cylinder in the center of the pool body. When the water flows through the first straightening hole on the first straightening cylinder, it is straightened to reduce turbulence. At the same time, the water flows together and collides at the straightening hole, which promotes the destabilization of the colloidal particles and creates good conditions for the subsequent flocculation reaction. The circular array of folding plates on the outer wall of the first straightening cylinder has adjacent spacings that gradually increase from the inside to the outside. The water flows through the folding plates to generate micro-vortices. In the front section with small spacing and high flow rate, the collision of flocculated particles is strengthened, accelerating the formation of flocs. The rear section has large spacing and low flow rate, avoiding the breakage of the formed flocs, greatly improving the flocculation efficiency. The sedimentation area between the guide cylinder and the pool body, combined with the water outlet and water collection device on the top, realizes efficient gravity sedimentation, effectively separating the flocs from the water, and ensuring good water quality of the outlet water. The sludge area between the bottom of the guide tube and the tank body, as well as the bottom sewage outlet, facilitate the discharge of settled flocs. Some flocs can also flow back into the first straightening tube 2 with the incoming water, acting as activated sludge, rapidly forming larger flocs from destabilized colloids and reducing reagent consumption. The coordinated operation of the entire device results in a compact structure, a small footprint, and high treatment efficiency, effectively improving water quality and reducing operating costs during the water treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the internal structure of the adaptive high-efficiency coagulation and sedimentation integrated device of the present invention;

[0022] Figure 2 This is a top view of the internal structure of the adaptive high-efficiency coagulation and sedimentation integrated device of the present invention.

[0023] In the figure: 1. Tank body; 2. First straightening cylinder; 3. Guide cylinder; 4. Water inlet pipe; 5. Folding plate; 6. Sedimentation area; 7. Sludge area; 8. Sewage outlet; 9. Outlet water collection device; 10. Second straightening cylinder; 11. Drive device; 12. Stirring rod; 13. Controller; 14. Chemical dosing unit; 15. Water quality sensing unit; 16. Image acquisition sensor; 17. Image processing system. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figures 1 to 2 As shown, this embodiment provides an adaptive high-efficiency coagulation and sedimentation integrated device, including: a tank body 1, a first straightening cylinder 2 and a guide cylinder 3 are coaxially fixed from the inside to the outside at the center of the tank body 1; the bottom of the first straightening cylinder 2 is connected to a water inlet pipe 4; a first straightening hole is provided on the first straightening cylinder 2; a plurality of folding plates 5 in a circular array are fixed to the outer wall of the first straightening cylinder 2, and the distance between two adjacent folding plates 5 gradually increases from the first straightening cylinder 2 to the outside; a sedimentation area 6 is provided between the side wall of the guide cylinder 3 and the tank body 1, and a sludge area 7 is provided between the bottom surface of the guide cylinder 3 and the tank body 1, and a sewage outlet 8 is provided at the bottom of the sludge area 7; a water outlet collection device 9 is provided at the top of the sedimentation area 6.

[0027] The water inlet pipe 4 is connected to the bottom of the first straightening cylinder 2 in the center of the pool body 1. When the water flows through the first straightening hole on the first straightening cylinder 2, it is straightened to reduce turbulence. At the same time, the water flows together and collides at the straightening hole, which promotes the destabilization of the colloidal particles and creates good conditions for the subsequent flocculation reaction. The circular array of folding plates 5 on the outer wall of the first straightening cylinder 2 has adjacent spacings that gradually increase from the inside to the outside. When the water flows through the folding plates 5, micro-vortices are generated. In the front section where the spacing is small and the flow rate is high, the collision of flocculated particles is strengthened and the formation of flocs is accelerated. The back section has a large spacing and a low flow rate, which avoids the breakage of the flocs that have been formed, greatly improving the flocculation efficiency. The sedimentation area 6 between the guide cylinder 3 and the pool body 1, in conjunction with the water outlet and water collection device 9 at the top, realizes efficient gravity sedimentation, effectively separates the flocs from the water, and ensures good water quality at the outlet. The sludge area 7 and bottom drain port 8 between the bottom of the guide tube 3 and the tank body 1 facilitate the discharge of settled flocs. Some flocs can also flow back into the first straightening tube 2 with the incoming water, acting as activated sludge, rapidly forming larger flocs from destabilized colloids and reducing reagent consumption. The coordinated operation of the entire device results in a compact structure, a small footprint, and high treatment efficiency, effectively improving water quality and reducing operating costs during the water treatment process.

[0028] Furthermore, the outlet water collection device 9 is a water collection trough, which is located along the inner side of the top of the tank body 1. Any of the following types can be selected: a perforated water collection trough, a sawtooth triangular overflow weir, and a wide-top weir. The outlet water collection device 9 can evenly collect the treated clean water at the top of the sedimentation zone 6, preventing uneven water collection from causing water flow disturbances in the sedimentation zone and rolling up settled flocs. At the same time, by selecting a variety of water collection trough types, it can adapt to different water treatment scales and water quality characteristics, ensuring the stability of the outlet water quality and the practicality of the device.

[0029] According to a further optimized solution, a second straightening cylinder 10 is provided between the first straightening cylinder 2 and the guide cylinder 3 , the inner wall of the second straightening cylinder 10 is fixedly connected to the outer ends of the plurality of folding plates 5 , and a plurality of second straightening holes are opened on the second straightening cylinder 10 .

[0030] The inner wall of the second rectifying cylinder 10 is fixedly connected to the outer end of the folded plate 5 to form an integral structure. The second rectifying hole opened in the cylinder wall can rectify the water flow again when passing through. The water flow aggregation and collision through the holes further enhances the aggregation effect of the flocculation particles. Combined with the velocity gradient change in the rear section of the reaction zone of the folded plate 5, it can avoid the floc breakage and promote the floc growth. At the same time, the flow channel design of the second rectifying cylinder 10, the first rectifying cylinder 2 and the folded plate 5 are concentrically arranged, so that the water flow after the flocculation reaction enters the sedimentation zone 6 more evenly, further improving the sedimentation efficiency and optimizing the effluent water quality.

[0031] According to a further optimized solution, a driving device 11 is provided on the top of the cell body 1 , and a stirring rod 12 is fixedly connected to the output end of the driving device 11 , and the stirring rod 12 extends into the interior of the first rectifier cylinder 2 .

[0032] A driving device 11 is arranged on the top of the pool body 1. The driving device 11 can be any one of an electric motor, a hydraulic motor, and a pneumatic motor. The stirring rod 12 fixedly connected to the output end of the driving device 11 extends into the first rectifier cylinder 2. The stirring rod 12 can be driven to rotate by the driving device 11 to achieve rapid and uniform mixing of raw water and coagulant in the first rectifier cylinder 2, solving the problem of uneven dispersion of mixed reagents in traditional pipelines and shortening the mixing reaction time.

[0033] According to a further optimized solution, the bottom surface of the tank body 1 is conical, the sludge area 7 is located inside the cone, and the sewage outlet 8 is opened at the bottom of the cone.

[0034] The bottom surface of the tank body 1 is designed to be conical, the sludge area 7 is located inside the cone and the sewage outlet 8 is opened at the bottom of the cone. This structure uses gravity to make the flocs settled in the sedimentation area 6 automatically slide along the cone surface to the bottom sewage outlet 8, avoiding sludge accumulation at the bottom of the tank and improving sludge discharge efficiency; at the same time, the conical design can reduce the sludge storage volume, and the conical bottom surface makes the water flow more evenly distributed at the bottom of the tank, reducing the dead zone of the water flow, and cooperating with the overall coaxial flow channel design to further optimize the sedimentation effect.

[0035] According to a further optimized solution, the first rectifier tube 2 , the plurality of folding plates 5 and the second rectifier tube 10 are fixedly connected as a whole, and the bottom is fixed with a bracket, and the bottom of the bracket is fixed to the bottom surface of the pool body 1 .

[0036] The first straightening cylinder 2, the folding plate 5 and the second straightening cylinder 10 are fixedly connected as a whole and fixed to the bottom surface of the pool body 1 through a bracket. This structural design can enhance the overall stability of the device, avoid displacement or vibration of each component due to water flow impact, and ensure the reliability of the flow channel structure; at the same time, the integrated fixed connection enables the first straightening cylinder 2, the folding plate 5 and the second straightening cylinder 10 to form a coherent water flow channel, ensuring the path stability of water flow through the straightening and flocculation reaction, avoiding flow disorder due to loose components, and the bracket support method is convenient for installation and maintenance of the device, and cooperates with the coaxially arranged guide cylinder 3 and other structures to further improve the operating stability and treatment efficiency of the entire coagulation and sedimentation process.

[0037] According to a further optimization scheme, the number and shape of the first rectifying holes make the water flow velocity through the first rectifying cylinder 2 0.2-0.3 m / s; the number and shape of the second rectifying holes make the water flow velocity through the second rectifying cylinder 10 0.1-0.15 m / s.

[0038] The number and shape of the first rectifying holes control the flow velocity of the water flowing through the first rectifying cylinder 2 to be 0.2-0.3 m / s, and the rectifying holes can be used to evenly rectify the mixed water flow, reduce water flow turbulence and promote water flow collision to accelerate colloid destabilization; the number and shape of the second rectifying holes control the flow velocity of the water flowing through the second rectifying cylinder 10 to be 0.1-0.15 m / s, which can rectify the water flow after the reaction of the folding plate 5 again and strengthen the aggregation of flocculation particles. The rectification design with two levels of different flow rates forms a velocity gradient, which ensures that the flocculation particles in the front section fully collide and avoids the breakage of the flocs in the back section. Combined with the flow state optimization of the reaction zone of the folding plate 5, the floc formation time can be shortened, the sedimentation efficiency can be improved, and the turbidity of the effluent can be reduced.

[0039] A further optimization scheme also includes an intelligent dosing system, which includes a detection component, a controller 13 and a drug dosing unit 14; the detection component is used to detect the water inlet state and the flocculation state, and transmit the detected information to the controller 13 through an electrical signal. The controller 13 controls the drug dosing unit 14 to add drugs into the water inlet pipe 4.

[0040] The intelligent dosing system achieves adaptive control of water quality fluctuations through the coordinated work of the detection component, the controller 13 and the chemical dosing unit 14: the detection component collects the water inlet parameters and the floc state parameters after the flocculation reaction in real time, and the controller 13 accurately judges the coagulant dosage based on the dual data, and drives the chemical dosing unit 14 to dynamically adjust the dosing pump frequency, forming a "detection-judgment-dosing" closed-loop control, which can automatically identify changes in raw water quality and optimize the chemical dosage, reduce chemical loss, improve system processing stability, and avoid the lag of manual control, significantly enhancing the adaptability of the device to complex water quality.

[0041] To further optimize the solution, the detection component includes a water quality sensor unit 15 , which is fixedly installed at the front end of the dosing port of the water inlet pipe 4 , and is electrically connected to the controller 13 .

[0042] The water quality sensor unit 15 of the detection component is fixedly installed at the front end of the dosing port of the water inlet pipe 4 and is electrically connected to the controller 13. It can collect the data parameters of the raw water in the water inlet pipe 4 in real time and convert them into electrical signals for transmission to the controller 13, providing accurate basic data of raw water quality for the intelligent dosing system, so that the controller 13 can accurately calculate the amount of coagulant added based on the real-time status of the inlet water, avoid excessive or insufficient dosage of chemicals due to water quality fluctuations, and improve the accuracy of dosing control from the source.

[0043] In a further optimized solution, the water quality sensing unit 15 includes four sensors for measuring flow, turbidity, pH, and temperature.

[0044] The water quality sensing unit 15 includes four sensors for measuring flow, turbidity, pH, and temperature, which can monitor the key parameters of the raw water in the water inlet pipe 4 in real time in all directions: the flow sensor provides a basic measurement basis for the dosage of the reagent, the turbidity sensor reflects the concentration of colloidal particles in the water to determine the demand for coagulant, the pH sensor monitors the acidity and alkalinity of the water to ensure the best environment for the coagulation reaction, and the temperature sensor affects the hydrolysis rate of the coagulant and the movement characteristics of the colloidal particles because the water temperature affects the coagulant hydrolysis rate and the movement characteristics of the colloidal particles. The four sensors work together to provide multi-dimensional water quality data for the controller 13, so that the intelligent dosing system can accurately match the fluctuations in raw water quality. For example, the dosage of the reagent is automatically increased at low temperatures to compensate for the decrease in hydrolysis efficiency. The dosage of the reagent is increased at high turbidity to accelerate the destabilization of the colloid, thereby realizing dynamic optimization of the reagent dosage, reducing the reagent loss compared with the traditional fixed parameter dosage, and improving the system's adaptability to different water quality conditions.

[0045] To further optimize the solution, the detection component also includes an image acquisition sensor 16, which is fixedly installed on the outside of the second fairing cylinder 10. The image acquisition sensor 16 is electrically connected to the image processing system 17, and the image processing system 17 is electrically connected to the controller 13.

[0046] The image acquisition sensor 16 of the detection component is fixedly installed on the outside of the second rectifier cylinder 10. It forms a data transmission link with the controller 13 through the electrically connected image processing system 17. It can capture the floc image after the flocculation reaction in real time and convert it into quantitative data such as floc size, density, sedimentation characteristics, etc. After analysis by the image processing system 17, it is transmitted to the controller 13, forming a double feedback with the detection data of the water quality sensor unit 15, so that the controller 13 can accurately judge the degree of coagulation reaction and the effect of drug addition. For example, when it is detected that the floc particles are small or unevenly distributed, the amount of drug addition is automatically increased to enhance flocculation, otherwise the dosage is reduced, thereby realizing dynamic closed-loop control of drug addition. Compared with the traditional drug addition method that only relies on water quality parameters, it can further improve the accuracy of drug addition and enhance the system's adaptability to complex water quality fluctuations.

[0047] Any details not provided in the present invention are conventional technical means known to those skilled in the art.

[0048] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An adaptive high-efficiency coagulation and sedimentation integrated device, characterized in that: include: A tank body (1) is provided, wherein a first straightening cylinder (2) and a guide cylinder (3) are coaxially fixedly connected to the center of the tank body (1) from the inside to the outside; the bottom of the first straightening cylinder (2) is connected to a water inlet pipe (4); a first straightening hole is provided on the first straightening cylinder (2); a plurality of folding plates (5) in a circular array are fixedly connected to the outer wall of the first straightening cylinder (2), and the spacing between two adjacent folding plates (5) gradually increases from the first straightening cylinder (2) outward; a sedimentation area (6) is provided between the side wall of the guide cylinder (3) and the tank body (1), a sludge area (7) is provided between the bottom surface of the guide cylinder (3) and the tank body (1), and a sewage outlet (8) is provided at the bottom of the sludge area (7); and a water outlet and water collecting device (9) is provided at the top of the sedimentation area (6).

2. The adaptive high-efficiency coagulation and sedimentation integrated device according to claim 1, characterized in that: A second straightening cylinder (10) is provided between the first straightening cylinder (2) and the guide cylinder (3); the inner wall of the second straightening cylinder (10) is fixedly connected to the outer ends of the plurality of folding plates (5); and the second straightening cylinder (10) is provided with a plurality of second straightening holes.

3. The adaptive high-efficiency coagulation and sedimentation integrated device according to claim 1, characterized in that: A driving device (11) is provided on the top of the cell body (1), and a stirring rod (12) is fixedly connected to the output end of the driving device (11), and the stirring rod (12) extends into the interior of the first rectifier cylinder (2).

4. The adaptive high-efficiency coagulation and sedimentation integrated device according to claim 1, characterized in that: The bottom surface of the tank body (1) is conical, the sludge area (7) is located inside the cone, and the sewage outlet (8) is opened at the bottom of the cone.

5. The adaptive high-efficiency coagulation and sedimentation integrated device according to claim 2, characterized in that: The first rectifier cylinder (2), the plurality of folding plates (5) and the second rectifier cylinder (10) are fixedly connected as a whole, and the bottom is fixed by a bracket, and the bottom of the bracket is fixed to the bottom surface of the pool body (1).

6. The adaptive high-efficiency coagulation and sedimentation integrated device according to claim 2, characterized in that: The number and shape of the first rectifying holes enable the water flow velocity through the first rectifying cylinder (2) to be 0.2-0.3 m / s; the number and shape of the second rectifying holes enable the water flow velocity through the second rectifying cylinder (10) to be 0.1-0.15 m / s.

7. The self-adaptive high-efficiency coagulation and sedimentation integrated device according to claim 2, characterized in that: The invention also includes an intelligent dosing system, which includes a detection component, a controller (13) and a drug dosing unit (14); the detection component is used to detect the water inlet state and the flocculation state, and transmits the detected information to the controller (13) through an electrical signal, and the controller (13) controls the drug dosing unit (14) to add the drug into the water inlet pipe (4).

8. The self-adaptive high-efficiency coagulation and sedimentation integrated device according to claim 7, characterized in that: The detection component comprises a water quality sensing unit (15), the water quality sensing unit (15) is fixedly mounted at the front end of the dosing port of the water inlet pipe (4), and the water quality sensing unit (15) is electrically connected to the controller (13).

9. The adaptive high-efficiency coagulation and sedimentation integrated device according to claim 8, characterized in that: The water quality sensing unit (15) includes four sensors for measuring flow, turbidity, pH, and temperature.

10. The self-adaptive high-efficiency coagulation and sedimentation integrated device according to claim 7, characterized in that: The detection component further includes an image acquisition sensor (16), which is fixedly mounted on the outside of the second rectifier cylinder (10), and the image acquisition sensor (16) is electrically connected to an image processing system (17), which is electrically connected to the controller (13).

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