A wastewater treatment agent quantitative dosing device and wastewater tank

Abstract

This utility model discloses a wastewater treatment agent quantitative dosing device and a wastewater tank, comprising a multi-axis displacement unit, a quantitative dosing unit connected to the moving end of the multi-axis displacement unit, and a control unit. The quantitative dosing unit includes a storage component, a dosing pump, a quantitative component, and a spraying component interconnected by pipelines. The quantitative component includes a quantitative tank and a float plate disposed within the quantitative tank. The float plate divides the quantitative tank into an upper chamber and a lower chamber. The lower chamber connects to the dosing pump and the spraying component. A fixed sensor and a loading component corresponding to the sensor are disposed in the upper chamber. The loading component is connected to the float plate. The control unit is electrically connected to the sensor, the dosing pump, and the spraying component. This utility model improves the efficiency and quality of wastewater treatment and reduces the risks and costs of manual operation.

Description

Technical Field

[0001] This utility model relates to the technical field of environmental protection engineering, specifically to a quantitative dosing device for sewage treatment agents and a sewage tank. Background Technology

[0002] With the rapid development of industry and urbanization, wastewater discharge continues to increase, and the composition of water quality is becoming increasingly complex, placing higher demands on wastewater treatment efficiency. Chemical dosing is a crucial step in wastewater treatment, and the dosage directly affects treatment effectiveness and cost. Traditional wastewater treatment chemical dosing methods partially rely on manual quantitative addition, where the chemical is dissolved and then manually estimated or simply weighed before being poured into the wastewater tank. This method is not only labor-intensive and inaccurate, but also poses a risk of injury to operators with corrosive or irritating chemicals. Furthermore, ensuring uniform chemical dosing is difficult, potentially leading to excessively high or low concentrations in certain areas, affecting treatment effectiveness and wasting chemicals.

[0003] To address the aforementioned problems, several automated chemical dosing devices have emerged. For example, a Chinese patent application discloses a wastewater treatment reaction tank and a wastewater treatment process. This solution utilizes a buoyancy plate installed within the wastewater tank, which rises and falls with the wastewater level. The buoyancy plate, via a transmission gear unit (including a second gear, a fourth gear, a lead screw, and a transmission block), drives the dosing box of the chemical dosing assembly to rotate. This allows the deflection angle of the dosing box to be adjusted according to changes in the volume of wastewater in the tank, thereby maintaining a relatively fixed ratio between the amount of chemical dosing and the volume of wastewater.

[0004] However, in this technical solution, the dosage is based on the overall liquid level change in the sewage tank, and the tilt angle of the dosing box is controlled through complex mechanical linkages (gears, racks, lead screws) to achieve the dosage. This indirect control method may be limited in accuracy for single, precise batch dosing of chemicals due to the precision, wear, and cumulative errors of the mechanical transmission mechanism. Furthermore, the distribution of chemicals mainly relies on the tilt of the dosing box; for large sewage tanks, the uniform distribution of chemicals across the entire water surface may not be ideal, requiring more subsequent stirring. Therefore, achieving more precise, automated single-dose dosing of chemicals remains a direction for improvement in existing technologies. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a wastewater treatment agent quantitative dosing device and a wastewater tank, aiming to solve the problem of low single-quantification accuracy that may exist in some quantitative methods that rely on complex mechanical linkage and indirect liquid level control in existing wastewater treatment agent dosing devices.

[0006] This utility model discloses a wastewater treatment agent quantitative dosing device, which includes a multi-axis displacement unit, a quantitative dosing unit connected to the moving end of the multi-axis displacement unit, and a control unit. The quantitative dosing unit includes a storage component, a dosing pump, a quantitative component, and a spraying component that are interconnected by pipelines. The quantitative component includes a quantitative tank and a float plate disposed in the quantitative tank. The float plate divides the quantitative tank into an upper chamber and a lower chamber. The lower chamber is connected to the dosing pump and the spraying component. A sensor is fixedly disposed in the upper chamber and a loading component is arranged corresponding to the sensor. The loading component is connected to the float plate. The control unit is electrically connected to the sensor, the dosing pump, and the spraying component.

[0007] In a preferred embodiment of this utility model, the metering bucket includes a bucket body and a cover plate. The bucket body is provided with a groove for guiding the float plate, and the sensor is fixedly connected to the cover plate.

[0008] In a preferred embodiment of this utility model, an observation port is provided on the barrel body, and a scale line is provided next to the observation port.

[0009] In a preferred embodiment of the present invention, the loading component includes a screw fixed to the float and a threaded sleeve connected to the screw.

[0010] In a preferred embodiment of the present invention, the storage component includes a medicine tank, which is connected to the dosing pump via a pipeline.

[0011] In a preferred embodiment of this utility model, a stirring assembly is provided on the medicine tank, and the stirring assembly is electrically connected to the control unit.

[0012] In a preferred embodiment of this utility model, the multi-axis displacement unit includes one or more linear modules.

[0013] In a preferred embodiment of this utility model, the linear module includes a drive motor, a sensing screw connected to the drive motor, and a threaded support plate connected to the sensing screw.

[0014] In a preferred embodiment of this utility model, the linear module is electrically connected to the control unit.

[0015] This utility model also discloses a sewage tank, including a sewage tank body, and a sewage treatment agent quantitative dosing device is provided above the sewage tank body.

[0016] The beneficial effects of this invention are as follows: This invention achieves precise single-batch dosage of chemicals through the coordinated mechanism of a float plate, loading component, and sensor. Simultaneously, by combining a multi-axis displacement unit (linear module) and spraying component, it enables the automated, movable, and uniform dispensing of chemicals above the wastewater tank. The addition of a stirring component further ensures the uniformity of the chemicals. Overall, this invention offers advantages such as accurate dosage, uniform dispensing, high automation, convenient operation, and strong adaptability. It effectively solves some problems existing in the prior art, improves the efficiency and quality of wastewater treatment, and reduces the risks and costs of manual operation.

[0017] First, the core of this device lies in its precise metering capability. A float plate installed inside the metering tank sensitively senses changes in the liquid level in the lower chamber and, via a connected loading component (such as a combination of a screw and a threaded sleeve), precisely transmits this displacement to a sensor fixed to the upper chamber (e.g., the cover plate) of the metering tank. Once the dosage reaches the preset value, the sensor is triggered, and the control unit then instructs the dosing pump to stop operating, thus achieving direct and precise metering of the dosage for a single batch of medication. To ensure the stability of the float plate's movement and thus guarantee metering accuracy, a guide groove for the float plate is also provided on the inner wall of the metering tank.

[0018] Secondly, this device features automated and mobile agent dispensing capabilities. A multi-axis displacement unit (specifically composed of one or more linear modules, such as a drive motor driving a sensing screw to move a threaded support plate) enables the entire dispensing unit to move precisely along a preset path above the wastewater tank. This displacement unit is electrically connected to the control unit, achieving automated control of the movement process. Combined with a spraying component connected to the dispensing unit, the metered agent can be evenly sprayed into a designated area of ​​the wastewater tank, thereby improving the contact efficiency between the agent and the wastewater.

[0019] Furthermore, to ensure the uniformity and effectiveness of the added pesticide, a stirring component is also installed on the storage unit (pesticide tank). This stirring component is also controlled by the control unit, effectively preventing pesticide sedimentation or stratification, and ensuring that the concentration of the pesticide drawn from the tank is consistent, laying the foundation for subsequent accurate quantification and efficient dosing.

[0020] In addition, the device also takes into account ease of use and maintainability. For example, observation ports and graduation lines are provided on the metering container, which facilitates equipment debugging, calibration and daily observation by operators.

[0021] In summary, this invention, through the synergistic effect of the aforementioned components, not only achieves precise metering and automated, mobile, and uniform dosing of chemicals, but also ensures the uniformity of the chemicals through stirring. This effectively improves wastewater treatment efficiency, reduces chemical waste, and lowers the risks and costs of manual operation, providing a highly efficient and reliable technical solution for the wastewater treatment field. Applying this device above a wastewater tank creates a fully functional wastewater treatment chemical dosing system. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments disclosed in this invention, the accompanying drawings of the embodiments will be briefly described below. These drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention.

[0023] Figure 1 This is a structural diagram of the wastewater treatment reagent quantitative dosing device of this utility model;

[0024] Figure 2 This is a structural diagram of the metering component of the wastewater treatment agent metering device of this utility model;

[0025] Figure 3 This is a diagram showing the internal structure of the metering tank of the wastewater treatment agent metering device of this utility model;

[0026] Figure 4 This is a structural diagram of the top cover plate of the wastewater treatment agent quantitative dosing device of this utility model.

[0027] In the diagram: 1. Wastewater tank; 2. Screw support plate; 3. Transmission screw; 4. Dual-shaft motor; 5. Threaded support plate; 6. Equipment base plate; 7. Chemical tank; 8. Mixing bracket; 9. Mixer; 10. Control module; 11. Dosing pump; 12. Inlet pipe; 13. Delivery pipe; 14. Metering tank; 15. Scale line; 16. Observation port; 17. Top cover plate; 18. Pressure sensor; 19. Float plate; 20. Plastic screw; 21. Plastic threaded sleeve; 22. Spray pipe; 23. Sprayer head. Detailed Implementation

[0028] The technical solutions (including preferred technical solutions) of the present invention will be further described in detail below with reference to the accompanying drawings and by way of listing some optional embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-4This utility model provides a wastewater treatment agent quantitative dosing device, including a wastewater tank 1. Screw support plates 2 are fixedly connected to both ends of the top of the wastewater tank 1. A driving assembly for moving the dosing device is disposed between the two screw support plates 2. A threaded support plate 5 is disposed on the surface of the driving assembly, and a device base plate 6 is fixedly connected to the top of the threaded support plate 5. A storage assembly is disposed on one side of the top of the device base plate 6, and a control module 10 is fixedly installed on the other side of the top of the device base plate 6. A quantitative component is fixedly installed in the middle of the top of the device base plate 6, and a spraying assembly is fixedly connected to one side of the quantitative component. A switch plate is fixedly installed on one side of one of the screw support plates 2, and the control module 10 is electrically connected to an external power supply through the switch plate.

[0030] See Figure 1 Furthermore, the drive assembly in this embodiment includes a dual-axis motor 4. The dual-axis motor 4 is mounted on another screw support plate 2. Two transmission screws 3 are fixedly connected to the output end of the dual-axis motor 4. The threaded support plate 5 is threaded between the two transmission screws 3. The dual-axis motor 4 is electrically connected to the control module 10.

[0031] In operation, the dual-axis motor 4 rotates, driving the two transmission screws 3 to rotate in the same direction, thereby causing the threaded support plate 5 to move along the transmission screws 3. After the threaded support plate 5 moves from one end of the sewage tank 1 to the other, the dual-axis motor 4 reverses, driving the transmission screws 3 to reverse, causing the threaded support plate 5 to reciprocate. In this way, the entire quantitative dispensing device can move back and forth above the sewage tank 1, achieving wide-range drug dispensing.

[0032] See Figure 2 , Figure 3 and Figure 4 Furthermore, the storage component in this embodiment includes a medicine tank 7. The medicine tank 7 is mounted on the equipment base plate 6. A stirring bracket 8 is fixedly connected to the top of the medicine tank 7, and a mixer 9 is fixedly mounted on the top of the stirring bracket 8. A stirring rod (not explicitly shown in the figure, but it is a conventional output component of the mixer) is fixedly connected to the output end of the mixer 9. The mixer 9 is electrically connected to the control module 10. A medicine addition port is provided on one side of the top of the medicine tank 7 for convenient replenishment of medicine.

[0033] A dosing pump 11 is fixedly installed on one side of the connection between the reagent tank 7 and the equipment base plate 6. The dosing pump 11 is electrically connected to the control module 10. An inlet pipe 12 and an infusion pipe 13 are fixedly connected to both ends of the dosing pump 11, respectively. The inlet pipe 12 is connected to the reagent tank 7, and the infusion pipe 13 delivers the reagent to the metering unit.

[0034] The metering component in this embodiment includes a metering tank 14. The metering tank 14 is mounted on the equipment base plate 6. An observation port 16 is provided on one side of the metering tank 14, and a scale line 15 is provided on one side of the observation port 16 to facilitate the operator's observation of the liquid level and calibration. A top cover plate 17 is provided on the top of the metering tank 14. A pressure sensor 18 is fixedly connected to the bottom of the top cover plate 17. The pressure sensor 18 is electrically connected to the control module 10.

[0035] Both sides of the inner wall of the metering container 14 are provided with metering grooves (the grooves are not explicitly marked in the figure, but are mentioned in the description). A float plate 19 is slidably connected between the two metering grooves. A plastic screw 20 is fixedly connected to the top of the float plate 19. A plastic threaded sleeve 21 is threadedly connected to the surface of the plastic screw 20.

[0036] In this embodiment, the spraying assembly is fixedly connected to the bottom of one side of the metering tank 14 via a spray pipe 22. Multiple nozzles 23 are mounted on the bottom of the spray pipe 22. All nozzles 23 are electrically connected to the control module 10.

[0037] The workflow of this application embodiment during use is as follows:

[0038] First, add the required reagent to the reagent tank 7 through the dosing port, then activate the switch to connect the power supply, and the control module 10 will begin operation. The control module 10 will then start the mixer 9, causing the stirring rod to rotate and agitate the reagent in the reagent tank 7 to prevent sedimentation and ensure uniform reagent concentration. After a certain period of agitation, the mixer 9 will stop.

[0039] Then, the control module 10 controls the start of the dosing pump 11. The dosing pump 11 draws the medicine from the medicine tank 7 through the inlet pipe 12 and delivers the medicine to the inside of the metering tank 14 through the delivery pipe 13. As the medicine continuously enters the metering tank 14, the liquid level in the metering tank 14 rises, and the float 19 gradually floats upward under the buoyancy of the medicine solution. The rise of the float 19 causes the plastic screw 20 and plastic threaded sleeve 21 at its top to move upward together.

[0040] When the dosage in the metering container 14 reaches the preset value (which can be adjusted by adjusting the relative position of the plastic screw 20 and the plastic threaded sleeve 21, or preset by the scale line 15), the top of the upward-moving plastic threaded sleeve 21 will contact and abut against the pressure sensor 18 fixed at the bottom of the top cover plate 17.

[0041] When the pressure sensor 18 is subjected to pressure by the plastic threaded sleeve 21, it generates an electrical signal and transmits it to the control module 10. Upon receiving this signal, the control module 10 immediately controls the dosing pump 11 to stop adding medicine to the metering tank 14. At this time, the metering tank 14 stores a precisely measured amount of medicine. The position of the scale line 15 in the vertical direction of the metering tank 14 represents the amount of medicine added. The distance of this metering line 15 from the bottom of the metering tank 14 is constant. The surface of the pressure sensor 18 is flush with the end of the metering tank 14. The distance of the metering line, plus the thickness of the float plate 19, plus the length of the plastic screw 20 and the plastic threaded sleeve 21, equals the depth of the entire metering tank 14. Subtracting the thickness of the float plate 19 and the total length of the plastic screw 20 and the plastic threaded sleeve 21 from the total depth of the metering tank 14 gives the height to which the medicine was added. When a certain amount of medicine needs to be added, the same amount of water can be added first. Then, adjust the length of the plastic screw 20 and the plastic threaded sleeve 21 so that the height of the added water, the thickness of the float 19, and the total length of the plastic screw 20 and the plastic threaded sleeve 21 are equal to the depth of the metering tank 14. In this way, the required amount of medicine can be metered.

[0042] After the dosage is measured, the control module 10 controls the dual-axis motor 4 to start, driving the threaded support plate 5 and the entire dosage dispensing device (including storage components, dosage components, spraying components, etc.) fixed on it to move along the transmission screw 3 above the sewage tank 1. At the same time, the control module 10 controls the activation of multiple nozzles 23 (e.g., by opening valves connected to the nozzles, or by directly controlling the operation of the nozzles). The measured agent in the dosage tank 14 is evenly sprayed into the sewage tank 1 below through the spray pipe 22 and multiple nozzles 23.

[0043] With the movement of the quantitative dispensing device and the spraying of the agent, the agent can be evenly distributed over a large area of ​​the sewage tank.

[0044] When the threaded support plate 5 moves to one end of the sewage tank 1, the dual-shaft motor 4 can reverse, causing the quantitative dispensing device to move in the opposite direction to continue spraying, or return to the initial position to wait for the next quantitative dispensing.

[0045] It should be noted that this utility model is a quantitative dosing device for wastewater treatment agents. All components are general standard parts or parts known to those skilled in the art. Its structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the unused areas of this device, all the aforementioned electrical components (referring to power elements, electrical devices, and the compatible monitoring computer and power supply) are connected by wires. The specific connection methods should refer to the working principle described above, where the electrical connections are completed according to the sequential operation of each component. The detailed connection methods are well-known technologies in the field.

[0046] It will be readily understood by those skilled in the art that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, substitutions, improvements, etc., made under the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A wastewater treatment agent quantitative dosing device, comprising a multi-axis displacement unit, a quantitative dosing unit connected to the moving end of the multi-axis displacement unit, and a control unit, wherein the quantitative dosing unit includes a storage component, a dosing pump, a quantitative component, and a spraying component interconnected by pipelines, characterized in that: The metering component includes a metering tank and a float plate disposed inside the metering tank. The float plate divides the metering tank into an upper chamber and a lower chamber. The lower chamber is connected to the dosing pump and the spraying component. The upper chamber is provided with a fixedly disposed sensor and a loading component arranged corresponding to the sensor. The loading component is connected to the float plate. The control unit is electrically connected to the sensor, the dosing pump, and the spraying component.

2. The wastewater treatment agent quantitative dosing device according to claim 1, characterized in that: The metering container includes a container body and a cover plate. The container body is provided with a groove for guiding the float plate, and the sensor is fixedly connected to the cover plate.

3. The wastewater treatment agent quantitative dosing device according to claim 2, characterized in that: The barrel is provided with an observation port, and a scale line is provided next to the observation port.

4. The wastewater treatment agent quantitative dosing device according to claim 1, characterized in that: The loading assembly includes a screw fixed to the float and a threaded sleeve connected to the screw.

5. The wastewater treatment agent quantitative dosing device according to claim 1, characterized in that: The storage component includes a reagent tank, which is connected to the dosing pump via a pipeline.

6. The wastewater treatment agent quantitative dosing device according to claim 5, characterized in that: The medicine container is equipped with a stirring assembly, which is electrically connected to the control unit.

7. The wastewater treatment agent quantitative dosing device according to claim 1, characterized in that: The multi-axis displacement unit includes one or more linear modules.

8. The wastewater treatment agent quantitative dosing device according to claim 7, characterized in that: The linear module includes a drive motor, a sensing screw connected to the drive motor, and a threaded support plate connected to the sensing screw.

9. The wastewater treatment agent quantitative dosing device according to claim 7, characterized in that: The linear module is electrically connected to the control unit.

10. A sewage tank, characterized in that: It includes a sewage tank, and a sewage treatment agent quantitative dosing device as described in any one of claims 1-9 is provided above the sewage tank.

Images