Dosing equipment of vertical flow type precipitation system

Abstract

The invention discloses dosing equipment for a vertical flow type precipitation system. The dosing equipment comprises a bracket, a bottom plate and a medicine storage tank B, the bottom plate is arranged below the support, the bottom plate makes contact with the ground to be installed and placed, and two sets of medicine storage tanks A are arranged on the surface of the bottom plate; according to the equipment, the motor is adopted to drive the stirring plate to stir, and the circulating mechanism is adopted to enable the medicament to circularly flow, so that the medicament can be in more sufficient contact with water, the mixing is more uniform, and the medicament can be fully dissolved and dispersed in the water; full-automatic operation of the whole dosing process from mixing and concentration adjustment after medicament addition to final dosing operation is realized, so that the risk of manual misoperation is reduced; the equipment adopts a centralized integrated design, so that the phenomena that medicaments are randomly accumulated on site and pipelines are disordered are avoided; the stirring plates are connected through arc-shaped fixing plates and bolts, so that the stirring plates are convenient to replace and clean, and proper stirring plates are convenient to replace according to different medicament characteristics.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a dosing device for a vertical flow sedimentation system. Background Technology

[0002] In wastewater treatment processes, sedimentation systems are classified into three types according to the direction of water flow: horizontal flow, radial flow, and vertical flow. Among them, vertical flow sedimentation systems are often used in small wastewater treatment plants because they occupy a small area, are easy to discharge sludge, and have high sludge sedimentation efficiency.

[0003] In existing technologies, the dosing and mixing methods of traditional ground sedimentation tanks are usually quite simple, generally relying on a single mechanical stirring device (such as a stirring paddle) to mix the chemicals and water added to the tank.

[0004] Because only a single and fixed mechanical stirring method is used, the flow pattern formed by the stirring paddle is simple and cannot cover the entire space of the sedimentation tank. This results in a limited mixing range between the reagent and water in the sedimentation tank. The reagent may be relatively well stirred in the area near the stirring paddle, but uneven distribution of the reagent is likely to occur in the area far from the stirring paddle. Some areas have excessively high reagent concentrations, while others have excessively low reagent concentrations. At the same time, this simple stirring method cannot effectively break the intermolecular forces of the reagent, which makes the reagent prone to agglomeration and cannot fully dissolve and disperse in the water. This leads to insufficient reaction between the reagent and water, which not only affects the sedimentation effect and makes the wastewater treatment substandard, but also wastes the reagent.

[0005] To address this, we have developed a vertical flow sedimentation system dosing device. Summary of the Invention

[0006] The purpose of this invention is to provide a vertical flow sedimentation system dosing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a vertical flow sedimentation system dosing device, comprising: a support, a base plate, and a storage tank B;

[0008] The base plate is located below the support and is in contact with the ground to form the installation position. The surface of the base plate is equipped with two sets of medicine storage tanks A.

[0009] The storage tank B is located on the top of the base plate between the two sets of storage tanks A. Storage tanks A and B are used to store the dosing liquid. The layout of the three sets of storage tanks not only facilitates the differentiation of different types of agents, but also shortens the distance of subsequent pipeline connections and improves the continuity of the dosing process.

[0010] The sides of storage tanks A and B are equipped with circulation mechanisms. The circulation pump of the circulation mechanism draws out the medicine inside storage tanks A and B and then discharges it back into storage tanks A and B, making the medicine and water mix more evenly and ensuring the uniformity and stability of the medicine concentration. This ensures the reliability of the dosing effect. This circulation method can effectively prevent the medicine from settling or separating due to standing, and ensure the consistency of the dosing concentration from the source.

[0011] Preferably, the circulation mechanism includes a pipe A connected to the input end of the circulation pump, with one end of pipe A inserted into the inside of the medicine storage tank A and medicine storage tank B. The output end of the circulation pump is connected to pipe B, which is L-shaped. One end of pipe B extends to the top of the medicine storage tank A and medicine storage tank B. The L-shaped pipe B design allows the medicine to fall back into the medicine storage tank at a certain height, forming an impact and stirring during the falling process, further enhancing the mixing effect.

[0012] Preferably, a motor is connected to the top of the bracket, and a rotating rod is connected to the output end of the motor. The bottom of the rotating rod extends into the interior of the medicine storage tank A and the medicine storage tank B. Stirring plates are detachably connected to the surfaces of multiple sets of rotating rods. The stirring plates driven by the motor can stir the medicine in the medicine storage tank in all directions, forming a dual mixing mechanism with the circulation mechanism, which greatly improves the uniformity of the medicine.

[0013] Preferably, the output end of the motor is connected to the top of the rotating rod via flange A, and an arc-shaped fixing plate is connected to the side of the stirring plate. The two sets of arc-shaped fixing plates are connected by bolts. The flange connection ensures the stability of power transmission, while the bolt-fixed arc-shaped fixing plate makes the replacement and maintenance of the stirring plate more convenient and reduces the maintenance cost of the equipment.

[0014] Preferably, the top of the bracket is connected to a water inlet pipe for water to enter. One end of the water inlet pipe is connected to a connecting pipe, and one end of the connecting pipe is connected to a drain pipe through flange B. The drain pipe extends into the interior of storage tanks A and B. An electric control valve is provided between the connecting pipe and the drain pipe. The electric control valve can precisely control the water inlet volume and, in conjunction with the amount of medicine added, achieve precise concentration control to meet the medication needs of different precipitation scenarios.

[0015] Preferably, a dosing tank is connected to one side of the top of the support, and a dosing pipe is connected to one side of the dosing tank. An opening for the dosing agent to enter is provided on the surface of the support. The dosing tank can store the agent in advance, and the agent can be replenished to the storage tank as needed through the dosing pipe. The opening provides a convenient channel for manual addition of the agent, ensuring timely and smooth agent replenishment.

[0016] Preferably, the surface of the bracket is provided with a grid plate located above the medicine storage tank A and medicine storage tank B. The grid plate can not only prevent foreign objects from falling into the medicine storage tank and contaminating the medicine, but also support the weight of the operator, making it convenient to carry out maintenance operations on the top components of the medicine storage tank, thus taking into account both safety and practicality.

[0017] Preferably, a controller is provided on the top of the support on one side of the grid plate; this enables automated management of the dosing process, reduces manual intervention, and improves the stability and efficiency of equipment operation.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] (1) The equipment uses a dual mixing method of motor-driven stirring plate and circulation mechanism to make the agent circulate. This allows the agent (such as PAM, PAC) to come into contact with water more fully and be mixed more evenly. The optimized design of the stirring plate and the complex flow state formed by the circulation can effectively break the intermolecular forces of the agent, allowing the agent to fully dissolve and disperse in the water. This solves the problem of uneven mixing and insufficient reaction of the agent caused by the simple mixing method in traditional ground sedimentation tanks.

[0020] (2) The entire dosing process, from mixing and concentration adjustment after the addition of the agent to the final dosing operation, is fully automated. The operator only needs to pour the agent into the dosing tank periodically. There is no need to perform frequent manual operations during the dosing process, which significantly reduces the labor intensity and the risk of human error.

[0021] (3) By adopting a centralized integrated design, all components such as storage tanks, pipelines, and pumps are installed in an orderly manner within the frame formed by the bracket and base plate, avoiding the phenomenon of random accumulation of medicines and disorderly pipelines in the traditional dosing method.

[0022] (4) The mixing plate is connected by an arc-shaped fixing plate and bolts, which makes the replacement and cleaning of the mixing plate simple and easy, and facilitates the replacement of the appropriate mixing plate according to the different characteristics of the reagents. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention during an explosion;

[0024] Figure 2 This is a structural schematic diagram from a first perspective of the present invention;

[0025] Figure 3 This is a structural schematic diagram from a second perspective of the present invention;

[0026] Figure 4 This is a top view of the structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the motor, rotating rod, and stirring plate of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the water inlet pipe, the electric control valve, and flange B connected in this invention;

[0029] Figure 7 This is a schematic diagram of the overall control principle of the present invention;

[0030] Figure 8 This is a schematic diagram of the control principle of the ultrasonic wave of the present invention;

[0031] Figure 9 This is a flowchart illustrating the overall operation of the present invention.

[0032] In the diagram: 1. Support; 2. Storage tank A; 3. Base plate; 4. Grating plate; 5. Dosing tank; 6. Motor; 7. Water inlet pipe; 8. Electrically controlled valve; 9. Circulation pump; 10. Pipe A; 11. Pipe B; 12. Storage tank B; 13. Dosing pipe; 14. Opening; 15. Rotating rod; 16. Stirring plate; 17. Drain pipe; 18. Controller; 19. Arc-shaped fixing plate; 20. Flange A; 21. Flange B; 22. Connecting pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0035] Please see Figure 1-9 The present invention provides a technical solution: a vertical flow sedimentation system dosing device, comprising: a support 1 and a base plate 3 forming the basic support structure of the device. The base plate 3 is set below the support 1 and is in contact with the ground to form a stable installation, providing solid support for the entire device, ensuring that the device remains stable during operation and avoiding normal operation due to vibration and other factors.

[0036] The surface of the base plate 3 is provided with two sets of drug storage tanks A2, and a drug storage tank B12 located between the two sets of drug storage tanks A2. These drug storage tanks are key components for storing the dosing liquid and can store different types or concentrations of drugs to meet the needs of the vertical flow sedimentation system for different drugs.

[0037] Both storage tanks A2 and B12 are equipped with circulation mechanisms on their sides. These mechanisms significantly improve the mixing effect of the chemicals. The circulation pump 9 in the circulation mechanism draws out the chemicals from storage tanks A2 and B12 through the inlet pipe A10 and discharges them into storage tanks A2 and B12 through the outlet pipe B11. This circulation process ensures that the chemicals and water are fully mixed, guaranteeing a uniform and stable concentration of the chemicals and thus ensuring reliable dosing results. This provides a strong guarantee for the efficient operation of the vertical flow sedimentation system.

[0038] A motor 6 is connected to the top of the bracket 1. The motor 6 serves as a power source, and its output end is connected to a rotating rod 15 via a flange A20. The bottom of the rotating rod 15 extends into the interior of the medicine storage tanks A2 and B12. A stirring plate 16 is detachably connected to the surface of multiple sets of rotating rods 15. An arc-shaped fixing plate 19 is connected to the side of the stirring plate 16. Two sets of arc-shaped fixing plates 19 are connected by bolts. This detachable connection method facilitates the installation, disassembly, and maintenance of the stirring plate 16. When the motor 6 starts, it drives the rotating rod 15 to rotate, thereby causing the stirring plate 16 to rotate inside the medicine storage tank, further stirring the medicine. In conjunction with the circulation mechanism, this enhances the uniformity of the medicine mixing.

[0039] The top of the support 1 is connected to a water inlet pipe 7 for water to enter. One end of the surface of the water inlet pipe 7 is connected to a connecting pipe 22. One end of the connecting pipe 22 is connected to a drain pipe 17 through a flange B21. The drain pipe 17 extends into the medicine storage tanks A2 and B12. An electric control valve 8 is provided between the connecting pipe 22 and the drain pipe 17. The electric control valve 8 can precisely control the amount of water entering the medicine storage tank and adjust the concentration of the medicine according to actual needs, thus realizing precise control of the dosing process.

[0040] A dosing tank 5 is connected to the top side of the support 1. The dosing tank 5 is used to store the medicine to be replenished. The dosing pipe 13 connected to one side can transport the medicine to the corresponding storage tank. At the same time, the surface of the support 1 has an opening 14 for medicine to enter, which makes it convenient for operators to add medicine to the dosing tank 5 or the storage tank.

[0041] The surface of the support 1 is provided with a grid plate 4 located above the medicine storage tanks A2 and B12. The grid plate 4 can not only prevent large debris from falling into the medicine storage tanks and ensure the purity of the medicine, but also provide a safe standing platform for operators to facilitate the inspection and maintenance of the equipment.

[0042] A controller 18 is installed on the top of the bracket 1 on one side of the grid plate 4 to realize the automated operation of the dosing process, thereby improving the operating efficiency and ease of operation of the equipment.

[0043] Specifically, during use, the bagged or barrelled medicine is manually poured into the dosing tank 5 through the specially designed opening 14 on the surface of the support 1 (medicine such as PAM, PAC). The dosing tank 5 has a buffer structure inside to prevent splashing when the medicine is poured in. After the medicine is temporarily stored in the dosing tank 5, it slowly flows into the storage tanks A2 and B12 through the dosing pipe 13, which is set at an angle on one side of the dosing tank 5. The diameter of the dosing pipe 13 is precisely calculated to control the flow rate of the medicine and prevent the medicine from clogging in the pipe. At the same time, it ensures that the initial storage amount of medicine in the two sets of storage tanks A2 and B12 is roughly equal, laying the foundation for the subsequent mixing process.

[0044] The flow sensor on the dosing pipe 13 (not shown in the figure) transmits the real-time flow data to the controller 18. When the reagent in the storage tank A2 and the storage tank B12 reaches the preset liquid level (monitored by the ultrasonic level gauge on the tank wall), the controller automatically closes the outlet valve of the dosing tank 13 to achieve quantitative distribution of the reagent.

[0045] The externally filtered water source enters the equipment system through the inlet pipe 7 installed on the top of the bracket 1. The inlet pipe 7 is made of corrosion-resistant material and can adapt to long-term transportation of different water qualities. The connecting pipe 22 connected to one end of the surface of the inlet pipe 7 is at a certain angle to reduce water flow impact. The connecting pipe 22 transports water to the drain pipe 17. The end of the drain pipe 17 is equipped with a decentralized water outlet, which can make the water flow evenly sprayed inside the medicine storage tanks A2 and B12. The opening of the electric control valve 8 is automatically adjusted by the PID algorithm: when a high concentration of medicine is required, the opening of the electric control valve 8 is reduced, and the water flow per unit time is reduced; when preparing a low concentration of medicine, the opening is increased. (The end of the drain pipe 17 can also be equipped with a rotating nozzle (which can rotate 360°) to evenly spray water on the inner wall of the medicine storage tank, which avoids foam generated by impact stirring and can also rinse the residual medicine on the tank wall.) This makes it easy for operators to make precise adjustments according to the amount and required concentration of medicine in the medicine storage tank, so as to meet the needs of medicine mixing under different working conditions.

[0046] After the motor 6, which is fixedly installed on the top of the bracket 1, is started, the output end of the motor 6 is tightly connected to the top of the rotating rod 15 through the flange A20. The connection surface of the flange A20 is precision machined to ensure the concentricity of the connection and reduce vibration during rotation. The rotating rod 15 is made of high-strength alloy material, which has good rigidity and corrosion resistance. Its bottom extends to a suitable depth inside the medicine storage tanks A2 and B12 to ensure the stirring effect. The surface of the rotating rod 15 is connected to multiple sets of stirring plates 16 by means of the arc-shaped fixing plate 19 and bolts. The number and arrangement of the stirring plates 16 are optimized to make the medicine form a more complex flow state during the stirring process. When the rotating rod 15 rotates, the stirring plates 16 rotate in the medicine storage tank to perform preliminary stirring and mixing of the medicine and water in all directions, breaking the agglomeration of the medicine.

[0047] Simultaneously, the circulation mechanism begins operation. The circulation pump 9 extracts the medicine from different depths inside the medicine storage tanks A2 and B12 through the pipe A10 connected to the input end. The inlet end of the pipe A10 is equipped with a removable filter screen to prevent larger particles from entering the circulation pump 9 and causing damage. After the circulation pump 9 pressurizes the medicine, it is discharged back to the top of the medicine storage tank through the L-shaped pipe B11 connected to the output end. The outlet direction of the L-shaped pipe B11 enables the returning medicine to form a specific jet, which interacts with the flow generated by the stirring plate 16, causing the medicine to form a strong circulation flow in the medicine storage tank. This further promotes the uniform mixing of the medicine and water, ensuring that the concentration of the medicine at each position in the medicine storage tank is uniform and stable, and avoiding situations where the local concentration is too high or too low.

[0048] On the other side of storage tanks A2 and B12, there are discharge pumps for discharging the medicine into the sewage collection tank. The discharge pumps can control the amount and speed of the medicine, and can also control the addition of medicine by ultrasound and control the amount of medicine by electronic dosing time, so as to form a certain medicine-water ratio and obtain the ideal medicine-water concentration. Thus, the reasonable ratio will not cause medicine waste.

[0049] The controller 18, located on one side of the grid plate 4 at the top of the bracket 1, employs an advanced microprocessor for intelligent and precise control of the entire dosing process. The controller 18 monitors parameters such as the liquid level and concentration of the drug in the storage tank in real time via connected sensors. Based on a preset program or this real-time monitoring data, it automatically controls the start / stop and speed of the motor 6. When the drug concentration is too low, the controller 18 increases the speed of the motor 6 to enhance the stirring effect; when the concentration reaches the required level, it reduces the speed or stops stirring. Simultaneously, the controller 18 can also control the operating status of the circulating pump 9, adjusting the circulation flow rate and frequency to optimize the circulation effect. The control valve 8 and controller 18 can automatically control their opening and closing based on the liquid level monitoring data. When the liquid level in the tank is too low, the electric control valve 8 will automatically open to add water; when the liquid level reaches the set value, the valve will close. Through these precise controls, the dosage and timing of medication can be accurately controlled. In addition, the grid plate 4 on the surface of the support 1 above the storage tanks A2 and B12 is made of high-strength anti-slip material. The grid size of the grid plate 4 is moderate, which can effectively protect the operator from accidentally falling into the storage tank or prevent debris from falling into the storage tank and affecting the quality of the medicine, without affecting the observation of the internal condition of the storage tank and the normal operation of the equipment.

[0050] Under the same water quality treatment requirements, due to the uniform mixing and sufficient reaction of the reagents, the amount of reagents used can be reduced by at least 1 / 3 compared to the traditional ground tank dosing method. Taking a medium-sized sewage treatment plant as an example, it can reduce a large amount of reagent procurement costs every year, greatly reduce operating costs, and also reduce the generation of reagent residues, which is beneficial to subsequent treatment.

[0051] like Figure 8As shown, the controller serves as the central hub, relying on ultrasonic sensors to collect data such as liquid level and concentration in the storage tank, and linking and controlling units such as water inlet, stirring, circulation, and dosing to automate the dosing process.

[0052] In this invention, the control of electrical components such as the circulating pump 9, motor 6, and controller 18 can be automatic, such as PLC system control or microcontroller control, or it can be manually controlled by connecting switches to the control panel. The choice can be made flexibly according to the actual use situation, which will not be described in detail here.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical flow sedimentation system dosing device, characterized in that, include: The bracket (1) and the base plate (3) are located below the bracket (1) and the base plate (3) is in contact with the ground to form an installation. The surface of the base plate (3) is provided with a medicine storage tank A (2). There are two sets of medicine storage tanks A (2). The medicine storage tank B (12) is located on the top of the base plate (3) between the two sets of medicine storage tanks A (2), and the medicine storage tanks A (2) and B (12) are used to store the medicine liquid; The sides of the medicine storage tank A (2) and the medicine storage tank B (12) are respectively equipped with circulation mechanisms. The circulation pump (9) of the circulation mechanism draws out the medicine inside the medicine storage tank A (2) and the medicine storage tank B (12) and discharges it into the medicine storage tank A (2) and the medicine storage tank B (12), so that the medicine and water are mixed more evenly, ensuring the uniformity and stability of the medicine concentration, and thus ensuring the reliability of the dosing effect.

2. The dosing equipment for a vertical flow sedimentation system according to claim 1, characterized in that: The circulation mechanism includes a pipe A (10) connected to the input end of the circulation pump (9), and one end of the pipe A (10) is inserted into the inside of the medicine storage tank A (2) and the medicine storage tank B (12). The output end of the circulation pump (9) is connected to a pipe B (11), which is L-shaped and one end of the pipe B (11) extends to the top of the medicine storage tank A (2) and the medicine storage tank B (12).

3. The dosing equipment for a vertical flow sedimentation system according to claim 1, characterized in that: The top of the bracket (1) is connected to a motor (6), and the output end of the motor (6) is connected to a rotating rod (15). The bottom of the rotating rod (15) extends into the interior of the medicine storage tank A (2) and the medicine storage tank B (12). The surfaces of multiple sets of rotating rods (15) are detachably connected to stirring plates (16).

4. The dosing equipment for a vertical flow sedimentation system according to claim 3, characterized in that: The output end of the motor (6) is connected to the top of the rotating rod (15) via flange A (20), and the side of the stirring plate (16) is connected to an arc-shaped fixing plate (19), and the two sets of arc-shaped fixing plates (19) are connected by bolts.

5. The dosing equipment for a vertical flow sedimentation system according to claim 1, characterized in that: The top of the bracket (1) is connected to an inlet pipe (7) for water to enter. One end of the surface of the inlet pipe (7) is connected to a connecting pipe (22). One end of the connecting pipe (22) is connected to a drain pipe (17) through a flange B (21). The drain pipe (17) extends into the medicine storage tank A (2) and the medicine storage tank B (12). An electric control valve (8) is provided between the connecting pipe (22) and the drain pipe (17).

6. The dosing equipment for a vertical flow sedimentation system according to claim 1, characterized in that: The top side of the support (1) is connected to a dosing tank (5), and a dosing tube (13) is connected to one side of the dosing tank (5). The surface of the support (1) is provided with an opening (14) for the drug to enter.

7. The dosing equipment for a vertical flow sedimentation system according to claim 1, characterized in that: The surface of the bracket (1) is provided with a grid plate (4) located above the medicine storage tank A (2) and the medicine storage tank B (12).

8. The dosing equipment for a vertical flow sedimentation system according to claim 1, characterized in that: The top of the bracket (1) is provided with a controller (18) on one side of the grid plate (4).

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