Movable multifunctional modularized automatic dosing system
The modularly designed automatic dosing system, utilizing components such as solenoid valves, flow meters, and level sensors, enables precise multi-location dosing of chemicals in wastewater treatment plants during influent fluctuations. This solves the inconvenience and accuracy problems of existing dosing systems, improving the convenience and accuracy of dosing.
Patent Information
- Application Number
- CN202422807643.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing wastewater treatment plants have difficulty achieving precise, multi-location dosing of chemicals when influent fluctuates, and temporary devices lack metering systems, making dosing inconvenient and difficult to locate.
Design a mobile, multifunctional, modular, automatic dosing system, including a stirrer, a dry powder silo, ton A and ton B. The flow rate of the agent is controlled by a solenoid valve and a flow meter. The modular design and liquid level sensor are used to achieve precise dosing. The system is combined with a frequency converter and a servo motor for agent maturation and quantitative dosing.
It enables rapid, precise, and multi-location chemical dosing, reduces the cumbersome process of setting up chemical dosing pipelines, facilitates transportation and remote control, and improves the convenience and accuracy of chemical dosing.
Smart Images

Figure CN223509665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a mobile, multifunctional, modular, automatic dosing system. Background Technology
[0002] Existing wastewater treatment plant biological treatment systems require the addition of corresponding chemicals at each stage to ensure effluent meets standards during normal operation. However, significant fluctuations in the influent (increases or decreases in influent volume, changes in influent quality, etc.) can impact the biological system, affecting treatment and necessitating additional chemical dosing at unspecified locations. Initially, this was achieved by temporarily adding dosing pumps and pipelines, and contacting tanker trucks to deliver the chemicals on-site. However, these temporary systems lack metering systems, relying solely on estimated dosages, and in some locations, tanker trucks cannot reach the dosing points, preventing the dosing process from proceeding.
[0003] Therefore, there is an urgent need for a remote and automatic dosing module to meet the needs of multi-location, precise, and multi-drug dosing. Summary of the Invention
[0004] This invention addresses the problems of cumbersome dosing pipeline construction, low dosing accuracy, and difficulty in reaching dosing locations in existing dosing vehicles. It proposes a mobile, multi-functional, modular, and automatic dosing system that enables rapid dosing, dosing at different locations, and precise dosing.
[0005] To achieve the above objectives, this utility model proposes a mobile, multi-functional, modular, automatic dosing system, including a stirrer, a dry powder silo, and a medicine tank, as well as a ton container A and a ton container B. A connecting pipe is provided between the ton container A and the ton container B, and the ton container A and the ton container B are connected by the connecting pipe. A stirrer is provided at the upper end of both the ton container A and the ton container B, and a discharge module is provided at the lower end of both the ton container A and the ton container B.
[0006] A dry powder silo is also provided on the ton container A. A first centrifugal pump and a second centrifugal pump are provided near the lower end of the ton container A. A medicine pouring pipe is provided between the first centrifugal pump and the second centrifugal pump and the ton container A. A medicine discharge pipe is provided for the first centrifugal pump and the second centrifugal pump respectively.
[0007] A mounting plate is fixedly installed at the lower part of the ton barrel B. A screw pump is installed near the lower end of the ton barrel B. The screw pump is provided with a feed pipe that is connected to the ton barrel B. A discharge pipe is provided at the outlet of the screw pump and the discharge pipe is connected to the discharge module.
[0008] A liquid level sensor is installed inside ton B, and the liquid level sensor is connected to a controller, which is electrically connected to the agitator and the dry powder silo.
[0009] Furthermore, a first solenoid valve is installed on the medicine pouring pipeline, and the coil of the first solenoid valve is electrically connected to the controller;
[0010] A second solenoid valve is installed on the drug outlet pipeline, and the coil of the second solenoid valve is electrically connected to the controller.
[0011] A sixth solenoid valve is installed between the feed pipe and the ton container B, and the coil of the sixth solenoid valve is electrically connected to the controller.
[0012] A first solenoid valve and a second solenoid valve control the opening and closing of the dispensing pipeline. The controller uses the first solenoid valve to electrically control the dosing of chemicals in tanks A and B. The second and sixth solenoid valves control the dispensing of chemicals from the tanks.
[0013] Furthermore, the discharge module includes a main pipe and a branch pipe. The main pipe is connected to the discharge pipe through the branch pipe, and a third solenoid valve is installed on the branch pipe. Ton barrel A and ton barrel B are respectively connected to the main pipe through the branch pipe. A fourth solenoid valve is installed between the branch pipe and ton barrel A, and a fifth solenoid valve is installed between the branch pipe and ton barrel B.
[0014] Furthermore, the coils of the third, fourth, and fifth solenoid valves are electrically connected to the controller.
[0015] The drug is administered via the third, fourth, and fifth solenoid valves, allowing for drug administration at multiple locations through multiple outlets.
[0016] Furthermore, the first centrifugal pump, the second centrifugal pump, and the screw pump are equipped with frequency converters, which are communicatively connected to the controller.
[0017] Furthermore, flow meters are installed on the discharge pipe and the feed pipe, and the output end of the flow meters is electrically connected to the input end of the controller.
[0018] Inverters are used to control the first centrifugal pump, the second centrifugal pump, and the screw pump, improving the accuracy of drug dosing. Flow meters are used to detect the pouring and dosing of drugs, and feedback control is used to achieve quantitative drug dosing.
[0019] Furthermore, the dry powder hopper includes a servo motor and a weighing sensor, the servo motor is equipped with a servo controller, and the servo controller is communicatively connected to a controller;
[0020] The output terminal of the weighing sensor is electrically connected to the input terminal of the controller.
[0021] For powdered drugs, a curing process is required. The dry powder silo enables precise dosing and controls the concentration of the drug, meeting the requirements of the process of adding the drug while making it.
[0022] Furthermore, a container is provided on the outer side of both ton A and ton B as a whole, and the mounting plate is a square plate with its bottom surface fixed to the bottom surface of the container.
[0023] Setting up containers facilitates the overall transportation of the automated dosing system.
[0024] The beneficial effects of this utility model through the above technical solution are as follows:
[0025] 1. This utility model uses two containers, A and B, for storing chemicals. Containers A and B are connected. A controller opens the fourth and fifth solenoid valves to allow for chemical dosing at different locations. The overall design is modular, facilitating placement at the dosing location. A level gauge detects the liquid level in containers A and B, providing the hardware basis for the controller to automatically close the fourth and fifth solenoid valves based on the liquid level. Because of the modular design, there is no need to construct additional dosing pipelines. Therefore, this utility model is convenient to use, portable, and enables remote chemical dosing.
[0026] 2. This utility model achieves precise drug dosage addition. Flow meters are installed on the drug pouring pipe and the feed pipe to reflect the flow rate at the first centrifugal pump, the second centrifugal pump and the screw pump. The controller controls the drug dosage through a frequency converter based on the flow data.
[0027] 3. This utility model can realize the pre-production and maturation of powdered drugs. The powder is added through the dry powder silo, the agitator stirs the powder and liquid, and the maturation operation is completed in ton A and ton B before being discharged by the screw pump, which can meet the process of production and addition at the same time. Attached Figure Description
[0028] Figure 1 This is one of the structural schematic diagrams of a mobile, multifunctional, modular, automatic dosing system according to this utility model;
[0029] Figure 2 This is the second structural schematic diagram of a mobile, multifunctional, modular, automatic dosing system according to this utility model;
[0030] Figure 3 This is a schematic diagram of the operation of a mobile, multifunctional, modular, automatic dosing system according to the present invention.
[0031] Figure 4 This is an electrical schematic diagram of a mobile, multifunctional, modular, automatic dosing system according to this utility model.
[0032] Reference numerals: 1 is a mixer, 2 is a dry powder silo, 3 is a ton container A, 4 is a ton container B, 5 is a connecting pipe, 6 is the first centrifugal pump, 7 is the second centrifugal pump, 8 is the dispensing pipe, 9 is the discharging pipe, 10 is the mounting plate, 11 is a screw pump, 12 is the feed pipe, 13 is the discharge pipe, 14 is the level sensor, 15 is the controller, 16 is the first solenoid valve, 17 is the second solenoid valve, 18 is the sixth solenoid valve, 19 is the discharge module, 20 is the third solenoid valve, 21 is the fourth solenoid valve, 22 is the fifth solenoid valve, and 23 is the flow meter. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0034] Example 1
[0035] like Figures 1-4 As shown, a mobile multi-functional modular automatic dosing system includes a stirrer 1, a dry powder silo 2 and a medicine tank, as well as a ton tank A3 and a ton tank B4. A connecting pipe 5 is provided between the ton tank A3 and the ton tank B4, and the ton tank A3 and the ton tank B4 are connected by the connecting pipe 5. A stirrer 1 is provided at the upper end of the ton tank A3 and the ton tank B4, and a discharge module 19 is provided at the lower end of the ton tank A3 and the ton tank B4.
[0036] The ton container A3 is also equipped with a dry powder hopper 2. A first centrifugal pump 6 and a second centrifugal pump 7 are located near the lower end of the ton container A3. A medicine pouring pipe 8 is provided between the first centrifugal pump 6 and the second centrifugal pump 7 and the ton container A3. The first centrifugal pump 6 and the second centrifugal pump 7 are respectively equipped with medicine outlet pipes 9.
[0037] A mounting plate 10 is fixedly installed at the lower part of the ton barrel B4. A screw pump 11 is installed near the lower end of the ton barrel B4. The screw pump 11 is provided with a feed pipe 12 that is connected to the ton barrel B4. A discharge pipe 13 is provided at the outlet of the screw pump 11. The discharge pipe 13 is connected to the discharge module 19.
[0038] A liquid level sensor 14 is installed inside the ton container B4. The liquid level sensor 14 is connected to a controller 15. The controller 15 is electrically connected to the agitator 1 and the dry powder silo 2.
[0039] The medicine pouring pipe 8 is equipped with a first solenoid valve 16, and the coil of the first solenoid valve 16 is electrically connected to the controller 15.
[0040] A second solenoid valve 17 is provided on the drug outlet pipe 9, and the coil of the second solenoid valve 17 is electrically connected to the controller 15.
[0041] A sixth solenoid valve 18 is provided between the feed pipe 12 and the ton barrel B4, and the coil of the sixth solenoid valve 18 is electrically connected to the controller 15.
[0042] The discharge module 19 includes a main pipe and a branch pipe. The main pipe is connected to the discharge pipe 13 through the branch pipe. A third solenoid valve 20 is installed on the branch pipe. Ton barrel A3 and ton barrel B4 are respectively connected to the main pipe through the branch pipe. A fourth solenoid valve 21 is installed between the branch pipe and ton barrel A3, and a fifth solenoid valve 22 is installed between the branch pipe and ton barrel B4.
[0043] The coils of the third solenoid valve 20, the fourth solenoid valve 21, and the fifth solenoid valve 22 are electrically connected to the controller 15.
[0044] The first centrifugal pump 6, the second centrifugal pump 7, and the screw pump 11 are equipped with frequency converters, and the frequency converters are communicatively connected to the controller 15.
[0045] A flow meter 23 is installed on the discharge pipe 8 and the feed pipe 12, and the output end of the flow meter 23 is electrically connected to the input end of the controller 15.
[0046] The dry powder silo 2 includes a servo motor and a weighing sensor. The servo motor is equipped with a servo controller 15, and the servo controller 15 is communicatively connected to the controller 15.
[0047] The output terminal of the weighing sensor is electrically connected to the input terminal of the controller 15.
[0048] The outer sides of the ton barrels A3 and B4 are equipped with containers, and the mounting plate 10 is a square plate with its bottom surface fixed to the bottom surface of the container.
[0049] In this embodiment, there are two solenoid valves: the first solenoid valve 16 and the second solenoid valve 17. For ease of explanation, they are referred to as the first solenoid valve 16A and the first solenoid valve 16B, and the second solenoid valve 17A and the second solenoid valve 17B. The first solenoid valve 16A and the second solenoid valve 17A correspond to the first centrifugal pump 6, and the first solenoid valve 16B and the second solenoid valve 17B correspond to the second centrifugal pump 7. In this embodiment, a PLC controller is selected as the controller.
[0050] This application offers four different work methods for various work situations:
[0051] The first type has an easily accessible dosing location, where the first centrifugal pump 6 and the second centrifugal pump 7 can both be used to add the medicine from the medicine tank to the dosing location.
[0052] During operation, controller 15 opens the second solenoid valve 17A on the dispensing pipe 9, which then powers the first centrifugal pump 6. The first centrifugal pump draws the medicine from the tank and delivers it through the dispensing pipe 9 to the desired dosing location. The operating principle of the second centrifugal pump 7 is the same as that of the first centrifugal pump 6 and will not be described further.
[0053] The second type of dosing location is difficult to reach. During operation, it is necessary to pour chemicals from tanks A3 and B4. First, controller 15 controls either the first solenoid valve 16A or 16B to open the pouring pipe 8, connecting the system. Then, controller 15 controls either the first centrifugal pump 6 or the second centrifugal pump 7 to operate, drawing the chemicals from the tanks into tanks A3 and B4. Tanks A3 and B4 are connected by a connecting pipe 5, ensuring the liquid levels in both tanks are the same. The liquid level sensor 14 monitors the liquid levels in tanks A3 and B4 in real time. When the liquid level reaches the maximum threshold set by controller 15, controller 15 stops either the first centrifugal pump 6 or the second centrifugal pump 7. The dosing system, primarily based on tanks A3 and B4, is then deployed to the required dosing location. Controller 15 opens the fourth solenoid valve 21 and the fifth solenoid valve 22, opening the branch pipes, allowing the chemicals to flow out through the branch pipes, completing the multi-location dosing.
[0054] Liquid level sensor 14 monitors the liquid levels in ton containers A3 and B4 in real time. When the liquid level falls below the minimum threshold set by controller 15, controller 15 controls the fourth solenoid valve 21 and the fifth solenoid valve 22 to close. The dosing operation is then complete.
[0055] The third method requires dilution of the added agent. During operation, controller 15 first opens the first solenoid valves 16A and 16B, connecting the dispensing pipe 8. Then, controller 15 controls the first centrifugal pump 6 and the second centrifugal pump 7 via a frequency converter. The first and second centrifugal pumps 6 and 7 have different power ratings. The first centrifugal pump 6 pumps the liquid medicine into containers A3 and B4, while the second centrifugal pump 7 pumps the diluent into containers A3 and B4. Simultaneously, controller 15 controls the stirrer 1 to agitate the diluent and liquid medicine to obtain the added agent. The level sensor 14 monitors the level in containers A3 and B4 in real time. When the level reaches the maximum threshold set by controller 15, controller 15 stops either the first centrifugal pump 6 or the second centrifugal pump 7. Then, stirrer 1 stops. Controller 15 then opens the sixth solenoid valve 18, the third solenoid valve 20, and the feed pipe 12. Controller 15 then controls the screw pump 11 to complete the agent dispensing.
[0056] The fourth step involves powder preparation. During operation, controller 15 controls the speed of the servo motor via the servo controller. The servo motor drives the screw mechanism, and the powder falls in equal amounts through the screw mechanism. The weight of the powder is then detected by a weighing sensor, thus achieving precise powder addition. The powder enters the ton container A3 from the dry powder silo 2. Both ton containers A3 and B4 contain liquid. The agitator 1 is turned on, and the powder completes the maturation process in ton containers A3 and B4 to produce the medicine.
[0057] Then, the agitator 1 stops. The controller 15 controls the sixth solenoid valve 18 to open, the third solenoid valve 20 to open, the feed pipe 12 to open, and the controller 15 controls the screw pump 11 to complete the drug delivery.
[0058] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A mobile, multi-functional, modular, automatic dosing system, comprising a stirrer (1), a dry powder silo (2), and a medicine tank, characterized in that, It also includes ton barrel A (3) and ton barrel B (4), with a connecting pipe (5) between ton barrel A (3) and ton barrel B (4), ton barrel A (3) and ton barrel B (4) connected by the connecting pipe (5), and a stirrer (1) is provided at the upper end of ton barrel A (3) and ton barrel B (4), and a discharge module (19) is provided at the lower end of ton barrel A (3) and ton barrel B (4). A dry powder silo (2) is also provided on the ton barrel A (3). A first centrifugal pump (6) and a second centrifugal pump (7) are provided near the lower end of the ton barrel A (3). A medicine pouring pipe (8) is provided between the first centrifugal pump (6) and the second centrifugal pump (7) and the ton barrel A (3). A medicine outlet pipe (9) is provided for the first centrifugal pump (6) and the second centrifugal pump (7). The lower part of the ton barrel B (4) is fixedly provided with an installation plate (10), and a screw pump (11) is provided near the lower end of the ton barrel B (4). The screw pump (11) is provided with a feed pipe (12) connected to the ton barrel B (4), and a discharge pipe (13) is provided at the outlet of the screw pump (11). The discharge pipe (13) is connected to the discharge module (19). A liquid level sensor (14) is installed inside the ton container B (4). The liquid level sensor (14) is connected to a controller (15). The controller (15) is electrically connected to the agitator (1) and the dry powder silo (2).
2. The mobile, multifunctional, modular, automatic dosing system according to claim 1, characterized in that, The medicine pouring pipe (8) is equipped with a first solenoid valve (16), and the coil of the first solenoid valve (16) is electrically connected to the controller (15). A second solenoid valve (17) is provided on the drug outlet pipe (9), and the coil of the second solenoid valve (17) is electrically connected to the controller (15); A sixth solenoid valve (18) is provided between the feed pipe (12) and the ton barrel B (4), and the coil of the sixth solenoid valve (18) is electrically connected to the controller (15).
3. The mobile, multifunctional, modular, automatic dosing system according to claim 1, characterized in that, The discharge module (19) includes a main pipe and a branch pipe. The main pipe is connected to the discharge pipe (13) through the branch pipe. A third solenoid valve (20) is installed on the branch pipe. Ton A (3) and ton B (4) are respectively connected to the main pipe through the branch pipe. A fourth solenoid valve (21) is installed between the branch pipe and ton A (3), and a fifth solenoid valve (22) is installed between the branch pipe and ton B (4).
4. The mobile, multifunctional, modular, automatic dosing system according to claim 3, characterized in that, The coils of the third solenoid valve (20), the fourth solenoid valve (21) and the fifth solenoid valve (22) are electrically connected to the controller (15).
5. A mobile, multifunctional, modular, automatic dosing system according to claim 1, characterized in that, The first centrifugal pump (6), the second centrifugal pump (7) and the screw pump (11) are equipped with frequency converters, which are communicatively connected to the controller (15).
6. The mobile, multifunctional, modular, automatic dosing system according to claim 1, characterized in that, A flow meter (23) is installed on the discharge pipe (8) and the feed pipe (12), and the output end of the flow meter (23) is electrically connected to the input end of the controller (15).
7. The mobile, multifunctional, modular, automatic dosing system according to claim 1, characterized in that, The dry powder silo (2) includes a servo motor and a weighing sensor. The servo motor is equipped with a servo controller (15), and the servo controller (15) is communicatively connected to the controller (15). The output terminal of the weighing sensor is electrically connected to the input terminal of the controller (15).
8. A mobile, multifunctional, modular, automatic dosing system according to claim 1, characterized in that, The outer side of the ton A (3) and ton B (4) is provided with a container, and the mounting plate (10) is a square plate, with the bottom surface of the mounting plate (10) fixed to the bottom surface of the container.