A denitrification and dephosphorization sewage treatment dosing device and a use method thereof

Abstract

The application discloses a kind of sewage treatment dosing devices of denitrification and phosphorus removal, including processing box, and storage part and uniform medicine passing part are arranged on processing box, and liquid adding mechanism is connected between uniform medicine passing part and dosing part;Uniform medicine passing part includes the partition plate being arranged in the inside of processing box, and processing box is divided into reaction zone and chemical reagent temporary storage area by partition plate, and processing box is located in chemical reagent temporary storage area and liquid adding mechanism communication;Partition plate is provided with through hole, and through hole is communicated with reaction zone and chemical reagent temporary storage area, and movable pipe is installed in through hole, and the upper portion of movable pipe is connected with connecting plate, and connecting plate is connected with fixing frame, and fixing frame is located in chemical reagent temporary storage area, and fixing frame is connected with liquid level adjusting part, and liquid level adjusting part is installed on processing box.The application is added to sewage by storage part and uniform medicine passing part cooperation, so that it can be guaranteed that sewage can be contacted with sewage evenly, and the treatment effect of sewage is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment dosing device for nitrogen and phosphorus removal and its usage method. Background Technology

[0002] Nitrogen and phosphorus are among the main nutrients causing eutrophication in water bodies. Excessive nitrogen and phosphorus can lead to excessive algal growth, causing problems such as cyanobacterial blooms and severely impacting aquatic ecosystems. Therefore, nitrogen and phosphorus removal is necessary during wastewater treatment to reduce their impact on aquatic ecosystems. Nitrogen and phosphorus removal refers to the process of removing nitrogen and phosphorus from wastewater to reduce their pollution of water bodies, which is a very important task in the field of environmental protection. In wastewater treatment, nitrogen and phosphorus removal is usually achieved by adding chemical agents to remove nitrogen and phosphorus from the water to meet environmental standards, making the addition of chemical agents crucial.

[0003] Currently, existing dosing devices typically add chemicals directly into the wastewater treatment tank via dosing pipes. While this method allows chemicals to be added to the wastewater, the chemicals cannot be fully mixed with the wastewater. This results in insufficient reaction between the chemicals and nitrogen and phosphorus in the wastewater, leading to uneven dosing. Consequently, nitrogen and phosphorus in some areas of the wastewater within the treatment tank may not react completely, or they may react excessively, thus affecting the wastewater treatment effect. Summary of the Invention

[0004] To address the problem in existing wastewater treatment processes where chemicals are directly added to the treatment tank via a dosing pipe, resulting in incomplete or excessive nitrogen and phosphorus reactions in different areas of the wastewater, this invention provides a nitrogen and phosphorus removal wastewater treatment dosing device and its usage method. This solves the problem that existing dosing devices typically discharge chemicals directly into the treatment tank, which is detrimental to the full reaction between the chemicals and the wastewater, easily leading to uneven dosing and resulting in incomplete or excessive reactions in different areas of the treatment tank, thus affecting the wastewater treatment effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention discloses a wastewater treatment dosing device for nitrogen and phosphorus removal, including a treatment tank, on which a storage device and a uniform dosing device are provided, and a liquid dosing mechanism is connected between the uniform dosing device and the dosing section.

[0007] The uniform drug delivery device includes a partition plate disposed inside the processing box, the partition plate dividing the processing box into a reaction zone and a chemical reagent storage zone, and the processing box located in the chemical reagent storage zone is connected to the liquid addition mechanism;

[0008] The partition plate is provided with a through hole, which connects the reaction zone and the chemical reagent storage zone. A movable tube is installed in the through hole, and a connecting plate is connected above the movable tube. A fixing frame is connected to the connecting plate. The fixing frame is located in the chemical reagent storage zone, and a liquid level regulating component is connected to the fixing frame. The liquid level regulating component is installed on the processing tank.

[0009] Preferably, multiple through holes are provided, and the multiple through holes are evenly distributed on the partition plate.

[0010] Preferably, a sealing gasket is provided on the inner wall of the through hole, and the inner wall of the sealing gasket is in contact with the outer wall of the movable tube.

[0011] Preferably, the liquid level regulating component includes an electric push rod, which is mounted on the processing tank. A connecting frame is installed at the telescopic head end of the electric push rod, and the connecting frame is connected to the fixed frame.

[0012] The electric actuator is signal-connected to a liquid level sensor, which is installed on the inner wall of the chemical reagent storage area.

[0013] The level gauge includes an upper level gauge and a lower level gauge, both of which are signal-connected to the electric push rod. The upper level gauge is installed in the chemical reagent storage area near the top, and the lower level gauge is installed in the chemical reagent storage area near the bottom.

[0014] Preferably, the stirring mechanism is provided on the storage unit and the processing box located on the reaction zone;

[0015] The stirring mechanism includes a first stirring mechanism and a second stirring mechanism;

[0016] The first stirring mechanism includes a first rotating column and a third rotating column, which are rotatably installed in the reaction zone. A first stirring blade is provided on the first rotating column, and a third stirring blade is provided on the third rotating column. The third stirring blade and the first stirring blade are arranged at intervals.

[0017] A transmission assembly is provided between the first rotating column and the third rotating column.

[0018] The second stirring mechanism includes a second rotating column, which is rotatably mounted inside the storage component, and a second stirring blade is provided on the second rotating column;

[0019] Drive components are connected to the first rotating column and the second rotating column.

[0020] Preferably, the transmission assembly includes pulleys, which are respectively mounted on the first rotating column and the third rotating column, and belts are connected to the two pulleys.

[0021] Preferably, the drive assembly includes a dual-axis motor, with couplings respectively mounted on the output shafts of the dual-axis motor. The coupling on one output shaft of the dual-axis motor is connected to the first rotating column, and the coupling on the other output shaft of the dual-axis motor is connected to the second rotating column.

[0022] Preferably, the liquid dispensing mechanism includes an infusion tube, one end of which is connected to the storage device, and the other end of which is connected to the chemical reagent temporary storage area on the processing tank.

[0023] The infusion tube is equipped with a solenoid valve.

[0024] Preferably, the storage component is a storage tank, and a support frame is provided at the bottom of the storage tank, the support frame being mounted on the processing box;

[0025] The storage tank is equipped with a dosing pipe and a liquid outlet, and the liquid outlet is connected to the infusion pipe.

[0026] This invention also discloses a method for using a wastewater treatment dosing device for nitrogen and phosphorus removal, used to control the aforementioned wastewater treatment dosing device for nitrogen and phosphorus removal, characterized in that the method includes the following steps:

[0027] A. Start the dual-axis motor. The output shaft of the dual-axis motor drives the second rotating column and the first rotating column to rotate respectively. The first rotating column drives the third rotating column to rotate synchronously through the transmission assembly. The first rotating column drives the first stirring blade to rotate, and the third rotating column drives the third stirring blade to rotate, thereby stirring the wastewater in the reaction zone. The second rotating column drives the second stirring blade to rotate, thereby stirring the chemical reagents inside the storage tank.

[0028] B. Input wastewater into the reaction zone inside the treatment tank;

[0029] C. Chemical agents are added into the storage tank through the dosing pipe. The chemical agents are thoroughly mixed under the rotation of the second stirring blade driven by the second rotating column. After mixing is completed, the solenoid valve is activated, and the chemical agents are transported to the chemical agent temporary storage area inside the treatment tank through the infusion pipe. When the liquid level of the chemical agents reaches the upper level gauge, the upper level gauge sends a control signal to the electric push rod. The electric push rod drives the connecting frame to move, the connecting frame drives the fixed frame to move, and the fixed frame drives the movable pipe to move along the through hole, connecting the through hole with the reaction zone. The chemical agents flow into the wastewater stored in the reaction zone. When the liquid level of the chemical agents drops to the lower level gauge, the lower level gauge sends a control signal to the electric push rod. The electric push rod drives the connecting frame to move again, that is, drives the movable pipe to move along the through hole, blocking the through hole.

[0030] Compared with the prior art, the present invention has the following beneficial technical effects:

[0031] This invention discloses a wastewater treatment dosing device for nitrogen and phosphorus removal. The device divides the treatment tank into a reaction zone and a chemical storage zone using a partition plate, allowing the wastewater treatment and chemical dosing processes to be carried out in a closed system. This effectively avoids chemical volatilization and waste, while also ensuring the safety and environmental friendliness of the operation. Secondly, the movable pipe and through-holes allow the chemical agents to enter the reaction zone evenly and mix thoroughly with the wastewater, thereby improving the efficiency of nitrogen and phosphorus removal. Then, the amount of chemical added can be precisely controlled by adjusting the liquid level, making the wastewater treatment process more precise and efficient. The wastewater treatment dosing device for nitrogen and phosphorus removal disclosed in this invention has advantages such as simple structure, convenient operation, high nitrogen and phosphorus removal efficiency, and environmental friendliness and energy saving, which are beneficial for improving wastewater treatment efficiency.

[0032] Furthermore, this device incorporates multiple through-holes evenly distributed on the partition plate, resulting in significant beneficial effects. Firstly, the multiple through-holes ensure that the chemical reagents flow evenly from the chemical reagent storage area into the reaction zone, thereby fully mixing with the wastewater and improving nitrogen and phosphorus removal efficiency. Secondly, the evenly distributed through-holes help maintain liquid flow balance within the reaction zone, preventing uneven treatment effects due to uneven reagent addition. This design enhances the stability and efficiency of the wastewater treatment process.

[0033] Furthermore, a sealing gasket is installed inside the through hole of this device and fits against the outer wall of the movable pipe. The sealing gasket can ensure the sealing between the movable pipe and the through hole, effectively preventing leakage of the agent during the transmission process, ensuring the safety and reliability of the sewage treatment process; reducing the volatilization and leakage of the agent, and reducing potential pollution to the environment.

[0034] Furthermore, this device incorporates a stirring mechanism that simultaneously stirs the wastewater stored inside the treatment tank and the chemical reagents stored inside the storage tank, ensuring uniform mixing of the chemicals. A dual-shaft motor drives both mechanisms simultaneously, saving costs. Specifically, the first stirring mechanism, through the rotation of the first and third rotating columns and their agitator blades, creates a comprehensive stirring effect within the reaction zone. The spaced arrangement of the first and third agitator blades ensures uniform stirring, allowing the wastewater and chemicals to mix thoroughly, thus improving nitrogen and phosphorus removal efficiency. The second stirring mechanism, located within the storage compartment, pre-stirs the stored chemicals through the rotation of the second rotating column and the action of the second agitator blades, maintaining a uniform state and preventing sedimentation or stratification. This not only guarantees the quality of the chemicals but also facilitates subsequent dosing. Simultaneously, the first and third rotating columns are linked via a transmission assembly, ensuring synchronous and stable rotation, further enhancing the stirring effect. The first and second rotating columns are connected by a drive assembly, achieving unified driving of the stirring mechanisms, simplifying operation and improving work efficiency.

[0035] Furthermore, the installation of the electric actuator in this device provides precise power support for liquid level regulation. Connected to the fixed frame via the connecting bracket at the telescopic head end, precise control of the movable tube's position can be achieved, ensuring that the chemical reagents flow into the reaction zone accurately and as needed. Secondly, the upper and lower liquid level gauges make liquid level monitoring more comprehensive and accurate. The upper level gauge monitors the highest liquid level in the chemical reagent storage area to prevent overflow; the lower level gauge monitors the lowest liquid level to ensure a continuous supply of reagents. Moreover, the signal connection between the level gauges and the electric actuator enables intelligent control. When the liquid level reaches the preset upper or lower limit, the electric actuator automatically adjusts the position of the movable tube, thereby maintaining the liquid level in the chemical reagent storage area within the appropriate range. This not only reduces the tediousness of manual operation but also improves work efficiency and accuracy.

[0036] The present invention also discloses a method for using a chemical dosing device for denitrification and phosphorus removal in wastewater treatment. This method enables the rapid operation of the dosing device, thereby uniformly adding chemical agents into the wastewater and improving the wastewater treatment effect. Attached Figure Description

[0037] Figure 1 A schematic diagram of a wastewater treatment dosing device for nitrogen and phosphorus removal provided by the present invention;

[0038] Figure 2 This is a front cross-sectional view of a wastewater treatment dosing device for nitrogen and phosphorus removal provided by the present invention.

[0039] Figure 3A schematic diagram showing the connection of the fixing frame, connecting plate, and electric push rod in a wastewater treatment dosing device for denitrification and phosphorus removal provided by the present invention;

[0040] Figure 4 A schematic diagram of the separated state structure of the through hole and the movable pipe in a wastewater treatment dosing device for nitrogen and phosphorus removal provided by the present invention;

[0041] In the attached diagram: 1. Processing tank; 2. Support frame; 3. Storage tank; 4. Stirring mechanism; 401. First rotating column; 402. First stirring blade; 403. Second rotating column; 404. Second stirring blade; 405. Dual-shaft motor; 406. Pulley; 5. Divider plate; 6. Liquid addition mechanism; 601. Infusion pipe; 602. Solenoid valve; 603. Through hole; 604. Movable pipe; 605. Sealing gasket; 606. Fixed frame; 607. Connecting plate; 608. Electric push rod; 609. Connecting frame; 7. Water addition pipe; 8. Drainage pipe; 9. Chemical addition pipe. Detailed Implementation

[0042] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0048] This invention discloses a wastewater treatment dosing device for nitrogen and phosphorus removal, comprising a treatment tank 1, on which a storage component and a uniform dosing component are provided. A liquid dosing mechanism 6 is connected between the uniform dosing component and the dosing section. The storage component stores the chemical agents, and the liquid dosing mechanism 6 delivers the chemical agents to the uniform dosing component. The uniform dosing component evenly adds the chemical agents to the wastewater in the treatment tank 1, ensuring that nitrogen and phosphorus in all areas of the wastewater can fully react with the chemical agents. This ensures that the chemical agents can be evenly added to the wastewater, thereby ensuring uniform contact between the chemical agents and the wastewater and improving the wastewater treatment effect.

[0049] See Figures 1-4 This invention provides a wastewater treatment dosing device for nitrogen and phosphorus removal. The device includes a treatment tank 1, which is used to store wastewater and provide space for wastewater treatment. A support frame 2 is fixedly connected to the top of the treatment tank 1, and a storage component is fixedly connected to the top of the support frame 2. The storage component is used to store and mix chemical agents to ensure that the agents are uniform in texture. A uniform dosing component is provided inside the treatment tank 1 near its top. The uniform dosing component is used to uniformly input the chemical agents in the storage component into the wastewater in the treatment tank 1, so that the wastewater and chemical agents are uniformly mixed, thereby performing nitrogen and phosphorus removal.

[0050] The uniform chemical flow component includes a partition plate 5 located inside the treatment tank 1 near its top. The partition plate 5 is parallel to the bottom end face of the treatment tank 1, dividing the treatment tank 1 into a reaction zone and a chemical reagent storage zone. A liquid inlet is located on the upper end face of the treatment tank 1 at the position of the chemical reagent storage zone. The liquid inlet is connected to a liquid addition mechanism 6, used to transport the chemical reagent in the storage unit to the chemical reagent storage zone via the liquid addition mechanism 6. Multiple through holes 603 are formed on the upper end face of the partition plate 5. In this embodiment, the partition plate 5 has 10 through holes 603. These through holes 603 are vertically arranged and connect the reaction zone and the chemical reagent storage zone. Each through hole 603 is equipped with a movable pipe 604, which uniformly feeds the chemical reagent in the chemical reagent storage zone into the wastewater in the reaction zone through the movable pipe 604. Since the multiple movable pipes 604 are at the same height and the liquid level is horizontal, it can be ensured that chemical agents from different locations can be added to the wastewater in the reaction zone simultaneously through multiple movable pipes 604, thereby ensuring that the wastewater can be in uniform contact with the chemical agents. Each through hole 603 has a sealing gasket 605 on its inner wall, and the inner wall of the sealing gasket 605 fits against the outer wall of the movable pipe 604, sealing the connection between the movable pipe 604 and the through hole 603. Each of the upper openings of these movable pipes 604 is connected to a connecting plate 607, which is perpendicular to the partition plate 5. The upper ends of these connecting plates 607 are connected to the bottom end face of the fixing frame 606, which is located in the chemical agent storage area. A liquid level regulating component is connected to the upper end face of the fixing frame 606, and the liquid level regulating component is installed on the treatment tank 1.

[0051] See Figures 1-3 The liquid level regulating component includes an electric actuator 608, which is vertically mounted on the upper surface of the processing tank 1. The telescopic head of the electric actuator 608 points vertically upward, and a connecting frame 609 is mounted on the end of the telescopic head. The connecting frame 609 is located above the upper surface of the processing tank 1. A guide rod is provided at the center of the bottom end face of the connecting frame 609. A guide hole is provided on the upper end face of the processing tank 1 corresponding to the position of the guide rod. The lower end of the guide rod passes through the guide hole and connects to the upper end face of the fixed frame 606. The electric actuator 608 drives the connecting frame 609 to move, thereby driving the fixed frame 606 to move vertically within the chemical reagent temporary storage area, and thus driving the movable tube 604 to move vertically within the through hole 603. A liquid level sensor is connected to the electric actuator 608, and the liquid level sensor is installed on the inner wall of the processing tank 1 within the chemical reagent temporary storage area.

[0052] The level gauge includes an upper level gauge and a lower level gauge, which are communicatively connected to an electric actuator 608. The upper level gauge is installed on the inner wall of the processing tank 1 near its upper part in the chemical storage area. When the liquid level of the stored chemicals in the chemical storage area reaches the upper level gauge, the upper level gauge sends a control signal to the electric actuator 608. Upon receiving the control signal, the electric actuator 608 starts working, that is, it drives the connecting bracket 609 to move along the through hole 603 toward the partition plate 5, moving the movable tube 604 out of the through hole 603, so that the through hole 603 is connected to the partition plate 5. The reaction zone is opened, allowing chemical reagents to flow into the reaction zone through the through hole 603 and react with the wastewater. The lower level sensor is installed on the inner wall of the treatment tank 1 near the bottom of the chemical reagent storage area. When the liquid level of the chemical reagents stored in the chemical reagent storage area drops to the lower level sensor, the lower level sensor sends a control signal to the electric push rod 608. After receiving the control signal, the electric push rod 608 starts to work, that is, it drives the connecting frame 609 to move along the through hole 603 toward the top of the treatment tank 1, moving the movable pipe 604 into the through hole 603 and blocking the through hole 603.

[0053] See Figure 2 A stirring mechanism 4 is provided on the storage unit and processing tank 1 in the reaction zone; the stirring mechanism 4 includes a first stirring mechanism and a second stirring mechanism; the first stirring mechanism includes a first rotating column 401 and a third rotating column, which are vertically rotatable inside the reaction zone of the processing tank 1 via bearings. The upper end of the first rotating column 401 extends out of the upper end face of the processing tank 1. A first stirring blade 402 is provided on the first rotating column 401 inside the reaction zone, and a third stirring blade is provided on the third rotating column inside the reaction zone. The third stirring blade and the first stirring blade... The wastewater stored in the treatment tank 1 is agitated by the rotation of the first rotating column 401, which drives the first stirring blade 402 to rotate, and the rotation of the third rotating column, which drives the third stirring blade to rotate. A transmission assembly is provided between the rotation of the first rotating column 401 and the third rotating column. The transmission assembly includes pulleys 406, which are respectively installed on the lower ends of the first rotating column 401 and the third rotating column. A belt is connected to the two pulleys 406, and the power is transmitted between them through the belt, so that the first rotating column 401 and the third rotating column rotate synchronously.

[0054] The second stirring mechanism includes a second rotating column 403, which is vertically rotatably mounted inside the storage container via a bearing. The lower end of the second rotating column 403 extends out of the storage container and is vertically parallel to the first rotating column 401, with their axes being vertically collinear. A second stirring blade 404 is provided on the second rotating column 403 inside the storage container. The rotation of the second rotating column 403 drives the second stirring blade 404 to rotate, thereby making the chemical reagents stored in the storage container evenly mixed. A drive assembly is connected to the upper end of the first rotating column 401 and the lower end of the second rotating column 403. The drive assembly is installed inside the support frame 2. The drive assembly includes a dual-axis motor 405, which is mounted on the processing box 1 inside the support frame 2. The vertical direction of the dual-axis motor 405 is perpendicular to the upper end face of the processing box 1. Each output shaft of the dual-axis motor 405 is equipped with a coupling. The coupling on the lower output shaft of the dual-axis motor 405 is connected to the upper end of the first rotating column 401, and the coupling on the upper output shaft of the dual-axis motor 405 is connected to the lower end of the second rotating column 403. The rotation of the dual-axis motor 405 drives the first rotating column 401 and the second rotating column 403 to rotate synchronously.

[0055] See Figure 1 The liquid dispensing mechanism 6 includes a liquid infusion tube 601. One end of the liquid infusion tube 601 is connected to the storage device, and the other end of the liquid infusion tube 601 is connected to the chemical reagent temporary storage area on the processing tank 1. The liquid infusion tube 601 delivers the chemical reagent in the storage device to the chemical temporary storage area. A solenoid valve 602 is provided on the liquid infusion tube 601. The opening and closing of the liquid infusion tube 601 is controlled by the opening and closing of the solenoid valve 602.

[0056] See Figure 1 The storage unit is a storage tank 3, and a support frame 2 is installed at the bottom of the storage tank 3. The support frame 2 is installed on the treatment box 1. The storage tank 3 is equipped with a dosing pipe 9 and a liquid outlet, and the liquid outlet is connected to a delivery pipe 601. A water supply pipe 7 is installed on one side of the treatment box 1 at the top of the reaction zone. Wastewater is transported into the reaction zone through the water supply pipe 7. A drain pipe 8 is installed on one side of the treatment box 1 at the bottom of the reaction zone. The treated wastewater is discharged through the drain pipe 8.

[0057] This invention also discloses a method for using a wastewater treatment dosing device for nitrogen and phosphorus removal, used to control the aforementioned wastewater treatment dosing device for nitrogen and phosphorus removal. The method includes the following steps:

[0058] A. Start the dual-axis motor 405. The output shaft of the dual-axis motor 405 drives the second rotating column 403 and the first rotating column 401 to rotate respectively. The first rotating column 401 drives the third rotating column to rotate synchronously through the transmission assembly. The first rotating column 401 drives the first stirring blade 402 to rotate, and the third rotating column drives the third stirring blade to rotate, thus stirring the wastewater in the reaction zone. The second rotating column 403 drives the second stirring blade 404 to rotate, thereby stirring the chemical reagents inside the storage tank 3.

[0059] B. Connect the water pump and the sewage pipe through the water inlet pipe 7, and then input sewage into the reaction zone inside the treatment tank 1 through the external water pump. When the sewage level inside the treatment tank 1 is in the reaction zone.

[0060] C. Chemical agents are added into the storage tank 3 through the dosing pipe 9. The second rotating column 403 drives the second stirring blade 404 to rotate, ensuring thorough and uniform mixing of the chemical agents. After mixing, the solenoid valve 602 is activated, and the chemical agents are transported through the infusion pipe 601 to the chemical agent temporary storage area inside the treatment tank 1. When the chemical agents are transported to the temporary storage area, they do not fall directly into the treatment tank 1 and come into contact with the wastewater. Instead, the temporary chemical agent storage area is positioned above the partition plate 5. As the chemical agents are continuously added, the liquid level of the chemical agents above the partition plate 5 gradually rises. When the liquid level of the chemical agents reaches... After the upper liquid level sensor is activated, it sends a control signal to the electric push rod 608. The electric push rod 608 drives the connecting frame 609 to move, which in turn drives the fixed frame 606 to move. The fixed frame 606 then drives the movable tube 604 to move along the through hole 603, connecting the through hole 603 to the reaction zone. The chemical agent then flows into the wastewater stored in the reaction zone and reacts with the wastewater. When the chemical agent level drops to the lower liquid level sensor, it sends a control signal to the electric push rod 608. The electric push rod 608 then drives the connecting frame 609 to move again, which in turn drives the movable tube 604 to move along the through hole 603, blocking the through hole 603.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A wastewater treatment dosing device for nitrogen and phosphorus removal, characterized in that, It includes a processing box (1), on which a storage device and a uniform drug delivery device are provided, and a liquid addition mechanism (6) is connected between the uniform drug delivery device and the storage device. The uniform drug delivery device includes a partition plate (5) disposed inside the processing box (1). The partition plate (5) divides the processing box (1) into a reaction zone and a chemical agent storage zone. The chemical agent storage zone is located above the reaction zone and is connected to the liquid addition mechanism (6). The partition plate (5) is provided with a through hole (603), which connects the reaction zone and the chemical reagent storage zone. A movable tube (604) is installed in the through hole (603). A connecting plate (607) is connected above the movable tube (604). A fixing frame (606) is connected to the connecting plate (607). The fixing frame (606) is located in the chemical reagent storage zone. The fixing frame (606) is connected to a liquid level regulating component, which is installed on the processing tank (1). Multiple through holes (603) are provided, and the multiple through holes (603) are evenly distributed on the partition plate (5); A sealing gasket (605) is provided on the inner wall of the through hole (603), and the inner wall of the sealing gasket (605) is in contact with the outer wall of the movable tube (604); The liquid level regulating component includes an electric push rod (608), which is mounted on the processing tank (1). A connecting frame (609) is mounted on the telescopic head end of the electric push rod (608), and the connecting frame (609) is connected to the fixed frame (606). The electric actuator (608) is signal-connected to a level gauge, which is installed on the inner wall of the chemical reagent storage area; The level gauge includes an upper level gauge and a lower level gauge. Both the upper level gauge and the lower level gauge are signal-connected to the electric push rod (608). The upper level gauge is installed in the chemical reagent temporary storage area near the upper part, and the lower level gauge is installed in the chemical reagent temporary storage area near the lower part. The storage device is a storage tank (3), and the storage tank (3) is provided with a dosing pipe (9) and a liquid outlet; The chemical reagent is transported to the chemical reagent temporary storage area. When the liquid level of the chemical reagent in the chemical reagent temporary storage area reaches the upper liquid level device, the upper liquid level device sends a control signal to the electric push rod (608). The electric push rod (608) drives the connecting frame (609) to move. The connecting frame (609) drives the fixed frame (606) to move. The fixed frame (606) drives the movable tube (604) to move along the through hole (603) to connect the through hole (603) with the reaction zone. The chemical reagent flows into the sewage stored in the reaction zone. When the liquid level of the chemical agent in the chemical agent temporary storage area drops to the lower level device, the lower level device sends a control signal to the electric push rod (608), and the electric push rod (608) drives the connecting frame (609) to move again, that is, drives the movable tube (604) to move along the through hole (603) and block the through hole (603).

2. The wastewater treatment dosing device for nitrogen and phosphorus removal according to claim 1, characterized in that, The storage unit and the processing box (1) are equipped with a stirring mechanism (4); The stirring mechanism (4) includes a first stirring mechanism and a second stirring mechanism; The first stirring mechanism includes a first rotating column (401) and a third rotating column. The first rotating column (401) and the third rotating column are rotatably installed in the reaction zone. A first stirring blade (402) is provided on the first rotating column (401), and a third stirring blade is provided on the third rotating column. The third stirring blade and the first stirring blade (402) are spaced apart. A transmission assembly is provided between the first rotating column (401) and the third rotating column; The second stirring mechanism includes a second rotating column (403), which is rotatably mounted inside the storage unit, and a second stirring blade (404) is provided on the second rotating column (403). Drive components are connected to the first rotating column (401) and the second rotating column (403).

3. The wastewater treatment dosing device for nitrogen and phosphorus removal according to claim 2, characterized in that, The transmission assembly includes pulleys (406), which are respectively mounted on the first rotating column (401) and the third rotating column, and belts are connected to the two pulleys (406).

4. The wastewater treatment dosing device for nitrogen and phosphorus removal according to claim 3, characterized in that, The drive assembly includes a dual-axis motor (405), on which couplings are respectively mounted. The coupling on one output shaft of the dual-axis motor (405) is connected to the first rotating column (401), and the coupling on the other output shaft of the dual-axis motor (405) is connected to the second rotating column (403).

5. A wastewater treatment dosing device for nitrogen and phosphorus removal according to claim 1, characterized in that, The liquid dispensing mechanism (6) includes an infusion tube (601), one end of which is connected to the storage device, and the other end of which is connected to the chemical reagent temporary storage area. A solenoid valve (602) is installed on the infusion tube (601).

6. A wastewater treatment dosing device for nitrogen and phosphorus removal according to claim 5, characterized in that, The storage tank (3) is provided with a support frame (2) at the bottom, and the support frame (2) is installed on the processing box (1); The outlet is connected to the infusion tube (601).

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