Dosing, stirring and monitoring device for tap water treatment coagulating basin

Abstract

The invention provides a tap water treatment coagulating basin dosing stirring monitoring device which comprises a stirring motor and a stirring shaft, a mounting platform is erected on a coagulating basin, the stirring motor is mounted on the mounting platform, the stirring motor and the stirring shaft are in transmission connection through a coupler, and the tap water treatment coagulating basin dosing stirring monitoring device further comprises a dosing device and a sensor assembly. The chemical adding device comprises a chemical box, a chemical adding pump, a chemical conveying pipe and a rotary chemical conveying device, a plurality of chemical adding openings are formed along the stirring shaft, the chemical adding pump conveys chemicals in the chemical box to each chemical adding opening through the rotary chemical conveying device and the chemical conveying pipe, and the chemicals are put into the coagulating basin through the chemical adding openings. The dosing, stirring and monitoring device for the tap water treatment coagulating basin provided by the invention adopts an integrated design, integrates stirring and dosing to realize a compact structure and function fusion, can obtain key parameters of a water body in the coagulating basin in real time through the sensor assembly, realizes accurate and automatic adjustment of the stirring speed and the dosing amount based on monitoring data, and improves the working efficiency. The stability and the reliability of the coagulation effect are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment coagulation and stirring, and in particular to a device for monitoring the dosing and stirring of a tap water treatment coagulation tank. Background Art

[0002] The coagulation tank is an important unit in the sewage treatment process, mainly used to remove suspended matter, colloids and dissolved organic matter in the water. The coagulation process adds chemical agents (coagulants) to the water to cause the tiny particles in the water to aggregate and form larger flocs that are easy to settle, thereby achieving solid-liquid separation.

[0003] Its working principle is to add coagulants (such as aluminum sulfate, polyaluminum chloride, iron salts, etc.) to the water to be treated, and neutralize the charge on the surface of the colloid through the coagulant, destroy its stability, and make it easy to aggregate into larger particles. After the coagulant is added, it needs to be quickly and evenly dispersed into the water by stirring. This stage is called the fast mixing stage. The purpose is to ensure that the coagulant is in full contact with the colloids and suspended matter in the water. Under slow stirring, the condensed small particles further aggregate into larger flocs. This stage is called the flocculation stage, which is characterized by a slow stirring speed to prevent the already formed flocs from being broken. After the flocs are formed, they enter the sedimentation stage. The larger flocs settle from the water due to gravity to achieve solid-liquid separation.

[0004] In the existing coagulation tank technology, stirring and dosing are two independent operations. Traditional stirring methods usually use simple mechanical stirring, such as paddle stirrers or turbine stirrers, which are driven by motors to rotate to achieve stirring and mixing of water. The independent dosing system separates the dosing process from the stirring process, and generally uses a separate dosing device to add the agent to the coagulation tank.

[0005] The existing coagulation tank stirring and dosing technology has the following problems: 1. Uneven stirring effect: The structure and operation mode of traditional agitators may lead to inconsistent stirring intensity in different areas of the coagulation tank, thus affecting the uniformity of the coagulation reaction. For example, in some corners or edge areas, the water flow rate is slow, the mixing of the reagent and the water body is not sufficient, and the coagulation effect is reduced.

[0006] 2. It is difficult to control the dosing accuracy: independent dosing systems often rely on manual experience or simple timed and quantitative dosing methods, and cannot accurately adjust the dosing amount according to real-time water quality changes and stirring conditions. This may lead to waste of reagents or insufficient dosing, affecting the coagulation effect and treatment costs.

[0007] 3. Lack of synergy: The separate operation of stirring and dosing results in a lack of effective synergy between the two. The dosing strategy cannot be adjusted in time according to the water state during the stirring process, and the stirring speed and intensity cannot be optimized according to the reaction after dosing.

[0008] 4. Insufficient monitoring means: Most existing mixers lack real-time monitoring of key parameters of the coagulation process, such as turbidity, pH value, temperature, etc. This makes it difficult for operators to accurately grasp the progress and effect of the coagulation reaction and make timely adjustments and optimizations.

[0009] 5. High energy consumption: Due to the low mixing efficiency, in order to achieve a certain coagulation effect, it is often necessary to increase the motor power and mixing time, thereby increasing energy consumption.

[0010] 6. High maintenance cost: Due to the complex structure and poor coordination, the mixer has many vulnerable parts, and maintenance and repair work is more frequent, which increases the maintenance cost of the equipment.

[0011] For example, in a sewage treatment plant, the uneven stirring of the traditional coagulation tank mixer resulted in the coagulant failing to fully exert its effect in some areas and unstable effluent quality. At another industrial wastewater treatment station, the independent dosing system was unable to accurately control the dosage, resulting in excessive use of chemicals and increased treatment costs. Summary of the invention

[0012] In view of the problems existing in the stirring of the existing coagulation tank, the present invention provides a dosing stirring monitoring device for a tap water treatment coagulation tank which adopts an integrated design to integrate stirring and dosing, thereby achieving a compact structure and integrated functions.

[0013] The solution adopted by the present invention to solve its technical problems is: a dosing stirring monitoring device for a tap water treatment coagulation tank, including a stirring motor and a stirring shaft, a mounting platform is set up on the coagulation tank, the stirring motor is installed on the mounting platform, the stirring motor and the stirring shaft are connected by a coupling transmission, and also include a dosing device and a sensor assembly, the dosing device includes a medicine box, a dosing pump, a drug delivery tube and a rotating drug delivery device, a plurality of dosing ports are arranged along the stirring shaft, the dosing pump transports the medicine in the medicine box to each dosing port through the rotating drug delivery device and the drug delivery tube, and delivers the medicine to the coagulation tank through the dosing port. The medicine is added into the mixing tank, the rotating medicine delivery device comprises a rotating sleeve, a ring platform is arranged on the stirring shaft, a plurality of through holes are arranged on the ring platform, the rotating sleeve is sleeved on the stirring shaft, the upper end of the rotating sleeve is sealed with the shaft rod of the stirring shaft, the lower end of the rotating sleeve is sealed with the ring platform, a cavity is reserved between the rotating sleeve and the stirring shaft as a medicine temporary storage cavity, a medicine inlet is arranged on the outer wall of the rotating sleeve, the medicine delivered by the medicine box and the dosing pump is delivered to the medicine temporary storage cavity through the dosing port, the through holes on the ring platform are respectively connected to the dosing ports arranged along the stirring shaft through medicine delivery pipes, the sensor assembly comprises a turbidity sensor, a pH sensor and a temperature sensor, the turbidity sensor is installed at the water outlet of the pool body, and the pH sensor and the temperature sensor are respectively installed at different positions in the middle of the pool body.

[0014] Furthermore, the stirring shaft includes a vertical shaft and multiple stirring blades. The stirring blades are fixed up and down along the shaft. The stirring blades and the shaft are perpendicular to each other. The shaft is connected to the stirring motor through a coupling. The rotation of the shaft drives the stirring blades to stir the water in the coagulation tank.

[0015] Furthermore, the upper and lower ends of the rotating sleeve are respectively provided with an inwardly extending annular upper baffle and lower baffle, wherein a shaft sleeve is installed between the upper baffle and the shaft rod of the stirring shaft, the upper surface of the lower baffle is connected to the lower surface of the ring platform, and a sealing ring is installed between the lower baffle and the ring platform.

[0016] Furthermore, a support spring is installed in the rotating sleeve, the support spring is sleeved on the shaft of the stirring shaft, and the support spring is located between the upper stop platform and the ring platform.

[0017] Furthermore, the dosing port is arranged at the junction of the stirring blade and the shaft, and the dosing port is provided with mesh holes to ensure uniform distribution of the medicine.

[0018] Furthermore, the stirring blade is in an arc shape with a serrated design on the edge to enhance the stirring effect.

[0019] Furthermore, it also includes an intelligent monitoring system, which obtains water information in the coagulation tank in real time through a sensor component. A flow regulating valve is installed on the drug delivery pipe between the ring platform and the dosing port. The intelligent monitoring system controls the flow regulating valve to control the dosing according to the real-time water information.

[0020] Beneficial effects of the present invention: The dosing stirring monitoring device for the tap water treatment coagulation tank provided by the present invention adopts an integrated design: the stirring device and the dosing device are integrated into one device, achieving compactness in structure and integration in functions.

[0021] Intelligent monitoring function: By equipping with turbidity sensors, pH sensors, temperature sensors, etc., it can obtain the key parameters of the water in the coagulation tank in real time.

[0022] Precise control: Based on monitoring data, precise and automatic adjustment of stirring speed and dosage can be achieved to ensure the stability and reliability of the coagulation effect.

[0023] The dosing stirring monitoring device of the present invention has the following advantages: 1. Improve coagulation efficiency: The synergistic effect of stirring and dosing, as well as real-time intelligent monitoring and adjustment, can make the coagulation reaction faster and more complete, greatly shortening the processing time.

[0024] 2. Ensure the stability of treatment effect: Accurately control the stirring speed and dosage to avoid fluctuations in coagulation effect caused by human operation errors or environmental changes, and ensure that the effluent water quality is stable and meets the standards.

[0025] 3. Save on drug costs: Intelligent monitoring and precise dosing reduce drug waste and processing costs.

[0026] 4. Reduce energy consumption: Optimized stirring design and adjustment of stirring speed according to actual needs avoid excessive stirring and effectively reduce energy consumption.

[0027] 5. Simplified operation process: integrated design and intelligent control reduce manual intervention and complex operation steps, and improve work efficiency.

[0028] 6. Enhanced adaptability: Ability to automatically adjust operating parameters in real time according to different water quality and treatment requirements to adapt to various complex water treatment scenarios.

[0029] 7. Improve equipment reliability: Reduce the connection and coordination problems between independent components, reduce the probability of failure, and extend the service life of the equipment.

[0030] 8. Data-supported optimization: The large amount of data generated by real-time monitoring can provide a strong basis for subsequent process optimization and equipment improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the stirring device of the present invention.

[0032] Figure 2 It is a schematic diagram of the front view structure of the stirring device.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotary drug delivery device.

[0034] Figure 4 It is a schematic diagram of the explosion of the rotary drug delivery device.

[0035] Numbers in the figure: 1. stirring motor, 2. stirring shaft, 3. sensor assembly, 4. medicine box, 5. dosing pump, 6. rotating drug delivery device, 101. coupling, 401. drug delivery tube, 402. dosing port, 203. stirring blade, 201. ring platform, 202. through hole, 601. rotating sleeve, 603. support spring, 604. shaft sleeve. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below.

[0037] Embodiment 1: The present invention provides a device for monitoring the stirring and dosing of a tap water treatment coagulation tank. The device combines the stirring and dosing operations of the coagulation tank, and utilizes the sensor component 3 to obtain the information of the water body in the coagulation tank in real time. According to the water body parameter information, the dosage is controlled by an intelligent monitoring system, thereby realizing the precise addition of the agent, improving the coagulation efficiency of the coagulation tank, and reducing the difficulty of subsequent water treatment.

[0038] Specific as Figure 1 As shown, the dosing stirring monitoring device for the coagulation tank of tap water treatment of the present invention includes a stirrer and a stirring shaft 2. An installation platform is set up on the coagulation tank, and a stirring motor 1 is installed on the installation platform. The stirring motor 1 and the stirring shaft 2 are connected by a coupling 101. The stirring motor 1 drives the stirring shaft 2 to stir the water in the coagulation tank, thereby accelerating the coagulation process of the water.

[0039] The top of the coagulation tank should be equipped with an inspection port and an observation window to facilitate equipment maintenance and observation of internal operation. The bottom of the tank is designed to be conical to facilitate the accumulation and discharge of sediment.

[0040] like Figure 2 As shown, the dosing and stirring monitoring device for the tap water treatment coagulation tank also includes a dosing device and a sensor assembly 3. The dosing device includes a medicine box 4, a dosing pump 5, a drug delivery tube 401 and a rotating drug delivery device 6. A plurality of dosing ports 402 are arranged along the stirring shaft 2. The dosing pump 5 transports the medicine in the medicine box 4 to each dosing port 402 through the rotating drug delivery device 6 and the drug delivery tube 401, and the medicine is added into the coagulation tank through the dosing port 402.

[0041] In order to be able to add medicine during the rotation of the stirring shaft 2, Figure 3 and Figure 4As shown, the rotating drug delivery device 6 is provided with a rotating sleeve 601, and a ring platform 201 is provided on the stirring shaft 2. The ring platform 201 is an annular platform protruding from the outer wall of the stirring shaft 2. A plurality of through holes 202 are evenly arranged on the ring platform 201, and the number of the through holes 202 is the same as the number of the drug adding port 402. The lower end of the through hole 202 is provided with a pipe interface protruding below the ring platform 201, so as to facilitate the installation of the drug delivery tube 401. The drug adding port 402 is provided with mesh holes to ensure uniform distribution of the drug.

[0042] The rotating sleeve 601 is sleeved on the stirring shaft 2, and the lower end of the rotating sleeve 601 is sealed with the ring stage 201, and the upper end of the rotating sleeve 601 is sealed with the stirring shaft 2 above the ring stage 201, so that the stirring shaft 2 can rotate in the rotating sleeve 601. A drug inlet is set on the side wall of the rotating sleeve 601, and a corresponding pipe joint is also set on the drug inlet to facilitate the installation of the drug delivery tube 401 and the connection between the medicine box 4.

[0043] There are many ways to seal the rotating sleeve 601 and the stirring shaft 2, and this embodiment is described using one of them. Figure 3 As shown, the upper and lower ends of the rotating sleeve 601 are both provided with an annular upper baffle and a lower baffle extending inward. After the rotating sleeve 601 is sleeved on the stirring shaft 2, the upper surface of the lower baffle and the lower surface of the ring 201 are staggered and fitted, and a wear-resistant sealing gasket is installed between the two to improve the sealing between the two. The through hole 202 provided on the ring 201 is located in the ring of the lower baffle, and the lower baffle is staggered with the ring 201 but does not block the through hole 202. A shaft sleeve 604 is installed between the upper baffle and the stirring shaft 2, and the sealing sleeve between the upper baffle and the stirring shaft 2 is realized by the shaft sleeve 604.

[0044] The inner cavity diameter of the rotating sleeve 601 is larger than the diameter of the stirring shaft 2, so that a temporary storage cavity for medicines is formed between the rotating sleeve 601 and the stirring shaft 2. The medicine is delivered to the temporary storage cavity for medicines through the medicine inlet on the side wall of the rotating sleeve 601. The medicines are delivered to the medicine adding port 402 through the through hole 202 via the medicine delivery tube 401 under the push of the medicine adding pump 5, thereby adding the medicines to the water body.

[0045] A support spring 603 is also installed in the rotating sleeve 601. The support spring 603 is mounted on the shaft of the stirring shaft 2. The lower end of the support spring 603 is located on the ring platform 201, and the upper end of the support spring 603 touches the lower surface of the upper baffle. The support spring 603 is used to press the lower baffle and the ring platform 201 and reinforce the rotating sleeve 601.

[0046] The sensor assembly 3 includes a turbidity sensor, a pH sensor, and a temperature sensor. The turbidity sensor is installed at the water outlet of the tank body, and the pH sensor and the temperature sensor are installed at different positions in the middle of the tank body. An inspection port and an observation window should be set on the top of the coagulation tank to facilitate equipment maintenance and observation of internal operation. The bottom of the tank body is designed to be conical to facilitate the accumulation and discharge of sediments. The water outlet of the coagulation tank is set in the middle of the bottom of the coagulation tank.

[0047] The main structure of the coagulation tank should be a cylindrical coagulation tank in overall shape, and the tank body is made of corrosion-resistant materials, such as corrosion-resistant high-strength alloy materials, to ensure long-term stable operation in a water treatment environment. An installation platform is set at the center of the coagulation tank for installing a stirring device.

[0048] The intelligent monitoring system uses an advanced programmable logic controller (PLC) to obtain relevant water parameters of the sensor component 3, control the dosing device to dosing quantitatively, and ensure accurate addition of the agent. The intelligent monitoring system is equipped with a touch screen, so that operators can intuitively view monitoring data, set operating parameters and view the operating status of the equipment.

[0049] A flow regulating valve is further installed on the drug delivery pipe 401 between the ring platform 201 and the drug adding port 402, and the intelligent monitoring system controls the flow regulating valve to perform drug adding control according to real-time water body information.

[0050] In the present invention, the stirring motor 1 uses an energy-efficient variable frequency motor, which can flexibly adjust the speed according to the control command. It is made of solid stainless steel, and the surface is specially treated to enhance corrosion resistance and wear resistance. The stirring blade 203 is designed as a double-layer type. The upper blade is responsible for quickly dispersing the agent into the water body, and the lower blade generates strong turbulence to promote the full mixing of the agent and the water body. The angle and spacing of the blades are accurately calculated to achieve the best stirring effect. The stirring blade 203 is in an arc shape, and the edge has a serrated design to enhance the stirring effect. The medicine box 4 is made of chemically resistant polyethylene material, divided into a plurality of independent compartments, respectively storing different types of coagulants, and the dosing pump 5 uses a high-precision metering pump, which can accurately control the dosage according to the control signal.

[0051] The drug adding pipeline adopts a corrosion-resistant PVC pipeline, and an anti-blocking device is arranged inside the pipeline to ensure smooth delivery of the medicine.

[0052] Operation process of the present invention 1. Start the equipment: After starting the equipment, the monitoring organization begins to collect data such as turbidity, pH value and temperature of the water in real time and transmits it to the control organization.

[0053] 2. Data processing and control: The control mechanism calculates the appropriate stirring speed and dosage according to the preset process parameters and the received monitoring data, and sends control instructions to the stirring mechanism and the dosing mechanism.

[0054] 3. Stirring process: The stirring mechanism adjusts the motor speed according to the instruction, driving the stirring blades 203 to stir. The upper blades quickly disperse the agent into the water body, and the lower blades generate strong turbulence to promote the full mixing of the agent and the water body.

[0055] 4. Dosing process: The dosing mechanism controls the working frequency of the dosing pump 5 according to the instruction, and accurately adds the agent to the coagulation tank. The agent is respectively delivered to each dosing port 402 through the rotating drug delivery device 6 and the drug delivery tube 401, and evenly distributed in the water body.

[0056] 5. Real-time monitoring and adjustment: During the operation process, the monitoring agency continuously monitors the data, and the control agency continuously adjusts the operating parameters to form a dynamic closed-loop control to ensure that the coagulation effect always reaches the best state.

[0057] 6. Sedimentation and water discharge: The bottom of the coagulation tank is designed to be conical, which is convenient for the accumulation and discharge of sediment. The treated clean water is discharged from the outlet at the bottom of the coagulation tank. The turbidity sensor monitors the turbidity of the effluent in real time to ensure the treatment effect.

[0058] Precise dosing: Through the intelligent monitoring system and high-precision dosing pump 5, precise dosing of drugs can be achieved to avoid drug waste and insufficient dosing.

[0059] Uniform stirring: The double-layer stirring blade 203 design and the rotating drug delivery device 6 ensure uniform distribution of the drug in the water body and improve the coagulation effect.

[0060] Real-time monitoring: A variety of sensors monitor water parameters in real time to ensure the stability and reliability of the coagulation process.

[0061] Energy saving and high efficiency: variable frequency motor and optimized stirring design reduce energy consumption and improve processing efficiency.

[0062] Easy maintenance: Inspection ports and observation windows are set on the top of the tank body to facilitate equipment maintenance and observation of internal operation conditions.

[0063] Through the above design and operation process, the dosing stirring monitoring device for the tap water treatment coagulation tank of the present invention can significantly improve the working efficiency of the coagulation tank, reduce the difficulty of subsequent treatment of the water body, and realize an intelligent and automated water treatment process.

[0064] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A dosing stirring monitoring device for a tap water treatment coagulation tank, comprising a stirring motor (1) and a stirring shaft (2), wherein a mounting platform is set up on the coagulation tank, the stirring motor (1) is mounted on the mounting platform, and the stirring motor (1) and the stirring shaft (2) are connected by a coupling (101), characterized in that: It also includes a dosing device and a sensor assembly (3), wherein the dosing device includes a medicine box (4), a dosing pump (5), a medicine delivery tube (401) and a rotating medicine delivery device (6), and a plurality of dosing ports (402) are arranged along the stirring shaft (2). The dosing pump (5) delivers the medicine in the medicine box (4) to each dosing port (402) through the rotating medicine delivery device (6) and the medicine delivery tube (401), and the medicine is delivered into the coagulation tank through the dosing ports (402). The rotary drug delivery device (6) comprises a rotary sleeve (601), a ring platform (201) is arranged on the stirring shaft (2), a plurality of through holes (202) are arranged on the ring platform (201), the rotary sleeve (601) is sleeved on the stirring shaft (2), the upper end of the rotary sleeve (601) is sealed with the shaft of the stirring shaft (2), the lower end of the rotary sleeve (601) is sealed with the ring platform (201), a cavity is left between the rotary sleeve (601) and the stirring shaft (2) as a medicine temporary storage cavity, a medicine inlet is arranged on the outer wall of the rotary sleeve (601), the medicine delivered by the medicine box (4) and the dosing pump (5) is delivered to the medicine temporary storage cavity through the dosing port (402), the through holes (202) on the ring platform (201) are respectively connected to the dosing ports (402) arranged along the stirring shaft (2) through the drug delivery tube (401), The sensor assembly (3) comprises a turbidity sensor, a pH sensor and a temperature sensor. The turbidity sensor is installed at the water outlet of the pool body, and the pH sensor and the temperature sensor are installed at different positions in the middle of the pool body.

2. The device for monitoring the dosing and stirring of a tap water treatment coagulation tank according to claim 1, characterized in that: The stirring shaft (2) comprises a vertical shaft and a plurality of stirring blades (203). The stirring blades (203) are fixed up and down along the shaft. The stirring blades (203) and the shaft are perpendicular to each other. The shaft is connected to the stirring motor (1) through a coupling (101). The shaft rotates to drive the stirring blades (203) to stir the water in the coagulation tank.

3. The device for monitoring the dosing and stirring of a tap water treatment coagulation tank according to claim 1, characterized in that: The upper and lower ends of the rotating sleeve (601) are respectively provided with an annular upper baffle and a lower baffle extending inwardly, wherein a shaft sleeve (604) is installed between the upper baffle and the shaft rod of the stirring shaft (2), the upper surface of the lower baffle is connected to the lower surface of the annular platform (201), and a sealing ring is installed between the lower baffle and the annular platform (201).

4. The device for monitoring the dosing and stirring of a tap water treatment coagulation tank according to claim 3, characterized in that: A support spring (603) is also installed in the rotating sleeve (601). The support spring (603) is sleeved on the shaft of the stirring shaft (2). The support spring (603) is located between the upper stop platform and the ring platform (201).

5. The device for monitoring the dosing and stirring of a tap water treatment coagulation tank according to claim 2, characterized in that: The drug adding port (402) is arranged at the junction of the stirring blade (203) and the shaft, and the drug adding port (402) is provided with mesh holes to ensure uniform distribution of the drug.

6. The device for monitoring the dosing and stirring of a tap water treatment coagulation tank according to claim 2, characterized in that: The stirring blade (203) is arc-shaped, and has a serrated edge to enhance the stirring effect.

7. The device for monitoring the dosing and stirring of a tap water treatment coagulation tank according to claim 1, characterized in that: It also includes an intelligent monitoring system, which obtains water information in the coagulation tank in real time through a sensor component (3). A flow regulating valve is installed on the drug delivery pipe (401) between the ring platform (201) and the drug adding port (402). The intelligent monitoring system controls the flow regulating valve to perform drug adding control according to the real-time water information.

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