A municipal sewage treatment on-line monitoring water supply and drainage device

Abstract

The application belongs to the technical field of sewage treatment, and provides a municipal sewage treatment online monitoring water supply and drainage device, which comprises a tank body, a core cylinder is fixedly installed in the tank body, a rotating cylinder is rotatably sleeved outside the core cylinder, and the rotating cylinder is divided into at least three independent treatment cavities by a plurality of partitions; a bottom plate is fixedly arranged in the tank body and is attached to the bottom of the rotating cylinder; and a fixed and unchangeable feeding cavity position, a sedimentation cavity position and a discharging cavity position are divided based on the fixed position of the bottom plate. A water inlet is formed in the side wall of the core cylinder, a matching water outlet is formed in the side wall of the treatment cavity, and a filter screen is arranged in the water outlet. The application adopts a rotating multi-cavity alternating operation mode, realizes sewage feeding, medicament mixing, graded sedimentation, online monitoring and automatic sludge discharge continuous operation, solves the problems of easy blockage, low sedimentation efficiency, incomplete sludge discharge and water quality monitoring lag of traditional equipment, has the characteristics of high automation degree, anti-blocking, low operation and maintenance cost and strong real-time monitoring, and is suitable for municipal pipe network continuous sewage treatment scenes.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to an online monitoring device for municipal wastewater treatment. Background Technology

[0002] In recent years, with population growth and the rapid development of industrial and agricultural production and urban construction, the amount of wastewater in various river basins has been increasing year by year, and the rate of exceeding water quality standards at provincial boundary sections of the basins has also been on the rise. Water pollution in the basins, especially in the middle and lower reaches, has become increasingly serious. In particular, with economic development, many industrial cities have large amounts of wastewater discharge, which has caused serious pollution of urban surface water and posed a huge threat to people's health. Therefore, wastewater needs to be treated before it is discharged. Only after the wastewater meets the discharge standards can it be discharged. During the treatment process, it is usually necessary to monitor the water quality of the wastewater in order to adjust the subsequent treatment process.

[0003] However, existing municipal wastewater treatment online monitoring devices cannot perform flocculation and monitoring while wastewater is being continuously discharged. This requires pausing the machine to start flocculation, then resuming monitoring, and only after monitoring is completed can water be discharged again, which wastes a lot of time. It is impossible to perform flocculation and monitoring simultaneously while discharging water, and it is impossible to monitor wastewater online in real time, resulting in a decrease in work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an online monitoring device for municipal wastewater treatment, which aims to solve the technical problem in the prior art that it is impossible to continuously monitor while discharging water and performing flocculation.

[0005] This invention is implemented as follows: an online monitoring and drainage device for municipal wastewater treatment includes a tank, a core cylinder fixed inside the tank, and a rotating drum rotatably mounted on the outside of the core cylinder. The rotating drum is divided into at least three independent treatment chambers by a partition. A horizontally fixed bottom plate is fixed inside the tank, and the top surface of the bottom plate slides and seals against the bottom surface of the rotating drum. Based on the fixed division of the tank into three constant working positions: a feeding chamber, a sedimentation chamber, and a discharge chamber, the sedimentation chamber can be set with multiple adjacent positions according to the amount of impurities in the wastewater to adapt to different sedimentation time requirements.

[0006] The core cylinder has an inlet only on the side of the discharge chamber, and matching outlets on the side walls of each treatment chamber. The outlets have built-in filters. Only when the treatment chamber is rotated to the discharge chamber position do the outlets and inlets align and connect, allowing wastewater to flow into the core cylinder. The filters intercept sludge and solids, preventing blockage of the drainage components at the source. A drainage assembly consisting of a water pump, a suction pipe, and a discharge pipe is connected to the bottom of the core cylinder, enabling the quantitative discharge of treated wastewater. The core cylinder also has built-in multi-parameter monitoring sensors that monitor water quality parameters such as dissolved oxygen, COD, and suspended solids in real time, uploading the data to the control system for adaptive adjustment of process parameters.

[0007] Each processing chamber has a drain outlet at its bottom, which is sealed by a plug-in plug plate. The bottom plate has sludge drop holes corresponding to the discharge chamber positions. A sludge tank is integrated below the bottom plate, and an external drain pipe connects to the sludge tank for centralized external sludge transportation. The sludge tank is equipped with an opening assembly with a protective structure. The plug plate is driven to rise and fall magnetically, preventing sludge from eroding the driving components and extending the equipment's service life.

[0008] A first drive mechanism is installed on the top of the tank, which drives the rotating drum to rotate precisely through gear engagement, realizing the switching of treatment chamber positions. The position of each chamber relative to the tank remains fixed, ensuring stable process sequence. Each treatment chamber has a built-in shaftless magnetic stirring rod, and is equipped with a second drive mechanism and a sludge cleaning mechanism: the second drive mechanism is located below the feeding chamber and drives the stirring rod to rotate through a liftable magnetic suction component, achieving thorough mixing of wastewater and chemicals; the sludge cleaning mechanism adopts an arc-shaped guide rail circumferential movement structure, which moves the stirring rod throughout the discharge chamber through magnetic attraction, scraping off residual sludge in the chamber and pushing it to the sewage outlet.

[0009] Further technical solutions: The second drive mechanism is equipped with a liftable telescopic rod. After the reagent is mixed, it drives the magnet to descend, releasing the magnetic attraction between the magnet and the stirring rod, preventing the stirring rod from shifting during drum rotation, and ensuring precise docking of the subsequent sludge cleaning mechanism. A large-aperture grid is built into the discharge port to prevent the stirring rod from falling while not obstructing sludge descent. During drum rotation, the bottom plate presses against the bottom of the blocking plate, achieving a passive seal at the discharge port and preventing sewage and sludge leakage during workstation switching.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. Multi-chamber parallel operation, significantly improving processing efficiency: This invention uses a rotating drum to separate multiple independent processing chambers, and utilizes fixed workstations to achieve simultaneous parallel operation of feeding, reagent stirring, static sedimentation, drainage monitoring, and automatic sludge discharge processes, eliminating the need for sequential waiting and greatly improving processing efficiency compared to traditional single-chamber equipment; sedimentation chambers can be flexibly added to adapt to the long sedimentation requirements of high-impurity wastewater, making it highly adaptable to various operating conditions.

[0012] 2. Multi-stage anti-clogging design ensures high equipment stability: An internal filter screen is installed at the outlet to intercept sludge and prevent solid impurities from entering the core cylinder and drainage components; the bottom plate and the plug plate are squeezed and sealed to prevent sludge leakage during station switching; the protective cylinder of the opening component isolates the drive components from sludge erosion. The triple anti-clogging structure completely solves the problem of water pump and pipeline blockage, reducing equipment failure rate and operation and maintenance costs.

[0013] 3. Built-in real-time monitoring and precise process control: The monitoring sensor is integrated inside the core cylinder to directly detect the real-time water quality of the wastewater to be discharged after sedimentation. Compared with end-of-pipe monitoring, it can provide feedback on water quality fluctuations in advance. The control system can adjust the dosage, sedimentation time and discharge flow rate in real time to improve the compliance rate of wastewater treatment.

[0014] 4. Full-area magnetic sludge removal, thorough sludge removal with no residue: The shaftless magnetic stirring rod is driven by an arc-shaped guide rail to move the stirring rod circumferentially and radially throughout the entire area, with no dead corners in mechanical transmission, which can thoroughly scrape off residual sludge from the bottom and side walls of the treatment chamber; in conjunction with a liftable second drive mechanism, it avoids displacement of the stirring rod position, ensures the accuracy of sludge removal docking, and reduces time waste.

[0015] 5. Uniform mixing of agents and excellent sedimentation effect: The magnetic rotary stirring structure below the feeding chamber can drive the stirring rod to rotate throughout the entire area, so that the sewage and flocculant are quickly and evenly mixed, accelerating the flocculation of colloidal impurities, shortening the sedimentation time, and improving the solid-liquid separation effect.

[0016] 6. High degree of automation and convenient operation and maintenance: The entire process is controlled by servo motors and telescopic rods, automatically completing the entire process of feeding, adding chemicals, stirring, sedimentation, drainage and sludge discharge without manual intervention; the magnetic shaftless structure reduces mechanical transmission parts, resulting in less equipment wear, and the perfect sealing structure eliminates the risk of sludge leakage, keeping the site environment clean. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the overall front cross-section of the present invention.

[0019] Figure 3 In this invention Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the overall side cross-sectional structure of the present invention.

[0021] Figure 5 In this invention Figure 4 Enlarged diagram of point B in the middle.

[0022] Figure 6 This is a schematic diagram of the overall bottom-view cross-sectional structure of the present invention.

[0023] Figure 7 In this invention Figure 6 Enlarged diagram of point C in the middle.

[0024] Figure 8 This is a top view of the overall structure of the present invention.

[0025] In the attached diagram: 1. Tank; 2. Drainage assembly; 21. Pumping pipe; 22. Water pump; 23. Drainage pipe; 3. Dosing pipe; 4. Water supply pipe; 5. First drive mechanism; 51. Gear ring; 52. First gear; 53. First servo motor; 6. Sludge cleaning mechanism; 61. First telescopic rod; 62. Second gear; 63. Second servo motor; 64. Arc-shaped rack; 65. Arc-shaped guide rail; 66. Slider; 67. First mounting plate; 68. First magnet; 69. Movable joint; 7. Core cylinder; 1. Inlet; 8. Rotating drum; 81. Baffle plate; 82. Outlet; 83. Filter screen; 84. Grille; 85. Blocking plate; 851. Iron sheet; 9. Second drive mechanism; 91. Second mounting plate; 92. Second magnet; 93. Third servo motor; 94. Second telescopic rod; 10. Magnetic stirring rod; 11. Base plate; 111. Sludge drop hole; 12. Sludge tank; 13. Sewage pipe; 14. Monitoring sensor; 15. Third telescopic rod; 151. Protective cylinder; 152. Third magnet. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] like Figures 1-8 As shown, this invention provides an online monitoring and drainage device for municipal sewage treatment, comprising a tank 1, a core cylinder 7 installed inside the tank 1, a rotating cylinder 8 rotatably mounted on the core cylinder 7, and multiple partitions 81 arranged in a ring array inside the rotating cylinder 8, which divide the interior of the rotating cylinder 8 into at least three independent treatment chambers of the same volume. A horizontal bottom plate 11 is also fixedly connected inside the tank 1, which divides the interior of the tank 1 into an upper treatment area and a lower discharge area. The top surface of the bottom plate 11 is polished and fitted with a ring-shaped rubber sealing gasket, which slides and seals in contact with the bottom surface of the rotating cylinder 8.

[0029] Based on the fixed division of the tank 1 frame, there are at least three constant working positions: the left side is the feeding chamber, the middle is the sedimentation chamber, and the right side is the discharge chamber. The positions of the working positions are permanently fixed relative to the tank 1. Only the processing chamber switches working positions as the rotating drum 8 rotates. The top surface of the tank 1 is fixed with a water supply pipe 4 and a chemical dosing pipe 3. The bottom ends of the two pipes only extend to the feeding chamber area, and are used to introduce raw municipal sewage and flocculant (PAC / PAM) respectively.

[0030] A rectangular inlet 71 is opened on the side wall of the core cylinder 7 (corresponding to the discharge chamber position). An outlet 82 matching the size of the inlet 71 is opened on the inner side wall of each treatment chamber. A stainless steel filter screen 83 is embedded in the outlet 82 with a pore size of 2mm to intercept solid sludge impurities. Only when the treatment chamber is rotated to the discharge chamber position can the outlet 82 be fully aligned and connected with the inlet 71, and the supernatant inside the treatment chamber can flow into the core cylinder 7.

[0031] An integrated monitoring sensor 14 is fixed at the bottom of the core cylinder 7. The sensor integrates COD, ammonia nitrogen, suspended solids and pH detection modules to collect water parameters in real time and transmit them to the central control system via wired transmission. The bottom of the core cylinder 7 is connected to the drainage component 2. The output end of the drainage component 2 extends out of the tank 1. The drainage component 2 is used to discharge the sewage in the core cylinder 7 and transport the treated sewage to the next process.

[0032] Each of the processing chambers is provided with a drain port, and a blocking plate 85 is inserted and sealed at the bottom of each drain port. A sludge drop hole 111 is provided on the bottom plate 11. A sludge box 12 is fixedly connected to the bottom of the bottom plate 11. The sludge box 12 is located below the discharge chamber. The sludge drop hole 111 is located inside the sludge box 12. A drain pipe 13 communicating with the sludge box 12 is provided on the side of the tank body 1.

[0033] The tank body 1 is also equipped with a first drive mechanism 5. The output end of the first drive mechanism 5 is connected to the rotating drum 8. The first drive mechanism 5 is used to drive the rotating drum 8 to rotate so as to realize the position conversion between the processing chambers. When the processing chamber is rotated, the positions of the feeding chamber, the sedimentation chamber and the discharge chamber remain unchanged relative to the position of the tank body 1.

[0034] An opening assembly is installed inside the sludge tank 12. The opening assembly is located below the sludge drop hole 111. The opening assembly is used to drive the blocking plate 85 to rise and fall, so as to close and open the sewage outlet.

[0035] Each of the processing chambers is equipped with a magnetic stirring rod 10, which has no shaft or fixed installation structure and can move freely within the chamber. The tank body 1 is also equipped with a sludge cleaning mechanism 6, the output end of which extends into the sludge tank 12. The sludge cleaning mechanism 6 is used to drive the magnetic stirring rod 10 to move, so as to push the sludge settled in the processing chamber to the discharge port through the magnetic stirring rod 10, and make the sludge fall into the sludge tank 12, and finally discharge the sludge through the discharge pipe 13.

[0036] Specifically, during use, wastewater is injected into the treatment chamber located at the feeding chamber position through the water supply pipe 4, and chemical agents are added through the dosing pipe 3 (this can be done manually or quantitatively using an automatic dosing device). After the treatment chamber is filled with wastewater, the first drive mechanism 5 is activated. The first drive mechanism 5 drives the rotating drum 8 to rotate one chamber, moving the wastewater-filled treatment chamber to the sedimentation chamber position, and rotating the empty treatment chamber to the feeding chamber position. The wastewater settles in the sedimentation chamber position, and the empty treatment chamber is fed into the feeding chamber position. After the treatment chamber is fed, the wastewater in the sedimentation chamber position also finishes sedimentation (if there are many impurities in the wastewater and the sedimentation time is too long, multiple sedimentation chamber positions can be set). Then, the first drive mechanism 5 is activated again, driving the rotating drum 8 to rotate one chamber again, thereby connecting the outlet 82 with the inlet 71, allowing the wastewater after sedimentation to flow into the core cylinder 7. The settled sludge remains at the bottom of the treatment chamber. The monitoring sensor 14 detects the water quality of the wastewater in the core cylinder 7. The drainage component 2 sends the wastewater in the core cylinder 7 to the next process. After the wastewater in the treatment chamber at the discharge position is discharged, the opening component is activated. The opening component drives the blocking plate 85 to descend, opening the sewage outlet. Then, the sludge cleaning mechanism 6 is activated. The sludge cleaning mechanism 6 drives the magnetic stirring rod 10 to move in the treatment chamber, which can scrape off the sludge in the treatment chamber and push it to the sewage outlet. The sludge falls from the sewage outlet into the sludge tank 12. After the sludge is cleaned, the opening component drives the blocking plate 85 to rise again, resealing the sewage outlet. After the treatment chamber is rotated to the feeding position, feeding can continue, thus forming a feeding-sedimentation-discharge cycle, which enables the device to continuously treat wastewater, monitor the water quality of wastewater online in real time, and avoid the drainage component 2 from being blocked.

[0037] In addition, when the drum 8 rotates, the bottom plate 11 will also press the bottom of the block plate 85 and press the block plate 85 into the drain outlet, thereby sealing the drain outlet.

[0038] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In this embodiment, a filter screen 83 is provided in the outlet 82 to block the sludge in the treatment chamber and prevent the sludge from entering the core cylinder 7, thereby preventing the sludge from clogging the drainage component 2.

[0039] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In this embodiment, the drainage component 2 includes a water pump 22, which is installed on the tank 1. The inlet of the water pump 22 is connected to a pumping pipe 21, one end of which is connected to the bottom of the core cylinder 7. The outlet of the water pump 22 is connected to a drain pipe 23, one end of which extends out of the tank 1.

[0040] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In this embodiment, the first drive mechanism 5 includes a first servo motor 53, a first gear 52, and a gear ring 51. The first servo motor 53 is fixedly installed on the tank 1, the gear ring 51 is fixedly installed on the rotating drum 8, and the first gear 52 is fixedly installed on the output shaft of the first servo motor 53. The first gear 52 is meshed with the gear ring 51.

[0041] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In this embodiment, the sludge cleaning mechanism 6 includes an arc-shaped guide rail 65 fixedly installed on the tank body 1. A slider 66 is slidably installed on the arc-shaped guide rail 65. A first telescopic rod 61 is fixedly installed on the slider 66. The movable end of the first telescopic rod 61, which extends into the sludge tank 12, is fixedly connected to a first mounting plate 67. The tank body 1 has an movable slot 69 for the movable end of the first telescopic rod 61 to move. Both ends of the first mounting plate 67 are equipped with first magnets 68, and the magnetic poles of the two first magnets 68 face opposite directions.

[0042] The mud-cleaning mechanism 6 also includes a power mechanism, which is mounted on the arc-shaped guide rail 65. The output end of the power mechanism is connected to the slider 66, and the power mechanism is used to drive the slider 66 to slide along the arc-shaped guide rail 65.

[0043] Specifically, to prevent sludge in the sludge tank 12 from splashing out of the tank body 1, a telescopic sealing cover is provided between the movable end of the first telescopic rod 61 and the movable joint 69.

[0044] When the processing chamber rotates to the discharge chamber position, the two ends of the magnetic stirring rod 10 will be attracted by the two first magnets 68. At this time, the first telescopic rod 61 is activated. The first telescopic rod 61 will drive the magnetic stirring rod 10 to move through the two first magnets 68, thereby pushing the sludge at the bottom of the processing chamber to the discharge port. The power mechanism drives the slider 66 to rotate, and the slider 66 will drive the first telescopic rod 61 to rotate around the axis of the rotating drum 8, so that the first telescopic rod 61 drives the magnetic stirring rod 10 to rotate, so that the end of the magnetic stirring rod 10 can contact the side wall of the processing chamber, thereby cleaning all the sludge in the processing chamber.

[0045] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In this embodiment, the power mechanism includes a second servo motor 63, an arc-shaped rack 64, and a second gear 62. A mounting bracket is fixedly connected to the bottom of the slider 66. The second servo motor 63 is fixedly mounted on one end of the mounting bracket extending out of the arc-shaped guide rail 65. The arc-shaped guide rail 65 has a sliding hole for the mounting bracket to move. The second gear 62 is fixedly mounted on the output shaft of the second servo motor 63. The arc-shaped rack 64 is fixedly mounted on the side of the arc-shaped guide rail 65. The second gear 62 meshes with the arc-shaped rack 64.

[0046] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In this embodiment, the opening assembly includes a third telescopic rod 15, which is fixedly installed inside the sludge tank 12. A third magnet 152 is fixedly installed at the movable end of the third telescopic rod 15, and iron pieces 851 that cooperate with the third magnet 152 are embedded at the bottom of all the blocking plates 85.

[0047] Specifically, when the processing chamber is fully rotated to the discharge chamber position, the third magnet 152 is located below the iron plate 851 and contacts the bottom of the iron plate 851. Then, the third telescopic rod 15 is activated. The third telescopic rod 15 drives the block plate 85 to descend through the third magnet 152, opening the sewage outlet, and the sludge should fall into the sludge box 12.

[0048] To protect the third telescopic rod 15 from the sludge, a protective cylinder 151 is also provided on the outside of the third telescopic rod 15. When the third telescopic rod 15 drives the blocking plate 85 to descend, the blocking plate 85 can fall into the port of the protective cylinder 151 and close the port of the protective cylinder 151, preventing sludge from falling into the protective cylinder 151.

[0049] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In order to prevent the magnetic stirring rod 10 from falling out of the sewage outlet, in this embodiment, a grid 84 is also provided inside the sewage outlet, and the top of the grid 84 is flush with the bottom of the treatment chamber.

[0050] Specifically, the bar screen 84 uses a large-aperture mesh filter 83, allowing sludge to pass through smoothly.

[0051] The present invention provides an online monitoring and drainage device for municipal sewage treatment. In order to improve the sedimentation efficiency of impurities, in this embodiment, a first driving mechanism 5 is also installed inside the tank 1. The first driving mechanism 5 is located below the feeding chamber. The first driving mechanism 5 includes a third servo motor 93. The third servo motor 93 is installed below the base plate 11. The output shaft of the third servo motor 93 is fixedly connected to a second mounting plate 91. A second magnet 92 is installed at both ends of the second mounting plate 91. The magnetic poles of the two second magnets 92 are opposite in orientation.

[0052] Specifically, during feeding, the two ends of the magnetic stirring rod 10 are attracted by two second magnets 92. When adding the agent, the third servo motor 93 is started. The third servo motor 93 drives the two second magnets 92 to rotate through the second mounting plate 91. The two second magnets 92 drive the magnetic stirring rod 10 to rotate. The magnetic stirring rod 10 can stir the sewage in the treatment chamber, so that the sewage and the agent are fully mixed and the impurities are settled faster.

[0053] The present invention provides an online monitoring and drainage device for municipal sewage treatment. During the rotation of the rotating drum 8, due to the attraction of the second magnet 92, one end of the magnetic stirring rod 10 will move to the side wall of the treatment chamber, causing the magnetic stirring rod 10 to deviate from the center of the treatment chamber. This results in the need to move the position of the first magnet 68 multiple times to re-attract the magnetic stirring rod 10, which wastes time. Therefore, in this embodiment, the second driving mechanism 9 also includes a second telescopic rod 94, which is fixedly installed at the inner bottom of the tank 1. The third servo motor 93 is fixedly installed at the movable end of the second telescopic rod 94.

[0054] Specifically, after the medicine is mixed, the second telescopic rod 94 is activated, which drives the third servo motor 93 to descend, so that the second magnet 92 is moved away from the magnetic stirring rod 10, weakening the magnetic force between the second magnet 92 and the magnetic stirring rod 10. In this way, the magnetic stirring rod 10 will not be deflected when the rotating drum 8 is rotated.

[0055] Workflow:

[0056] S1. Initial station alignment: The equipment is powered on and initialized. The first drive mechanism 5 is reset, so that the processing chamber is aligned with the feeding chamber, sedimentation chamber and discharge chamber. All blocking plates 85 are in the rising and blocking state. The drainage component 2, opening component and mud cleaning mechanism 6 are reset and ready for standby.

[0057] S2. Feeding and mixing of chemicals: Municipal raw sewage is introduced into the treatment chamber located in the feeding chamber through the water supply pipe 4, and flocculant is added quantitatively through the dosing pipe 3 at the same time; the second telescopic rod 94 is activated to extend, so that the second magnet 92 approaches and magnetically attracts the magnetic stirring rod 10 in the chamber, and the third servo motor 93 is activated to drive the stirring rod to rotate and stir for 30-60 seconds to fully mix the sewage and chemicals and accelerate the flocculation of colloidal impurities into clumps.

[0058] S3. Station Switching and Settling: After the reagents are mixed, the second telescopic rod 94 retracts, releasing the magnetic attraction of the second magnet 92 to the stirring rod; the first servo motor 53 is started, driving the rotating drum 8 to rotate one station, the processed chamber with the finished material moves to the settling chamber, and the empty processed chamber switches to the feeding chamber to start a new round of feeding; the processed chamber with the finished material is settling in the settling chamber, and the settling time can be preset according to the water quality data, and the feeding time and the settling time are made consistent.

[0059] S4. Secondary repositioning and water inlet to the core cylinder: After the sedimentation time reaches the target, the first servo motor 53 is restarted, and the rotating drum 8 rotates one station again, completing the switching of the sedimentation treatment chamber to the discharge chamber position. The side wall outlet 82 is precisely aligned with the inlet 71 of the core cylinder 7. The supernatant flows into the core cylinder 7 after being filtered through the filter screen 83, and the sludge is intercepted and left at the bottom of the treatment chamber. The monitoring sensor 14 detects the water quality parameters in the core cylinder 7 in real time and uploads them to the central control system.

[0060] S5. Water discharge: Start water pump 22 to extract water from core cylinder 7 through water pumping pipe 21 and transport it to subsequent disinfection and deep treatment processes through drain pipe 23.

[0061] S6. Automatic sludge discharge and cleaning: After the water in the core cylinder is emptied, the third telescopic rod 15 in the sludge tank 12 is retracted, and the third magnet 152 magnetically pulls the block plate 85 down, opening the sewage outlet; the sludge cleaning mechanism 6 is activated, the first magnet 68 magnetically attracts the magnetic stirring rod 10, the first telescopic rod 61 extends and retracts, driving the magnetic stirring rod 10 to move radially, and the second servo motor 63 drives the slider 66 to revolve, driving the magnetic stirring rod 10 to move circumferentially, scraping away the sedimented sludge at the bottom and side walls of the treatment chamber, and pushing the sludge to the sewage outlet; the sludge passes through the grid 84 and sludge drop hole 111 and falls into the sludge tank 12, and is finally transported out for treatment through the sewage pipe 13.

[0062] S7. Reset Cycle: After the sludge cleaning is completed, the third telescopic rod 15 extends and pushes the blocking plate 85 up to re-seal the sewage outlet; the sludge cleaning mechanism 6 resets and the first drive mechanism 5 stands by; after the treatment chamber rotates to the feeding chamber position again, steps S2-S7 are repeated to form a continuous, cyclic sewage treatment operation.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0064] 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 also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A municipal wastewater treatment online monitoring and drainage device, comprising a tank, characterized in that, A core cylinder is fixedly installed inside the tank, and a rotating cylinder is rotatably assembled on the outside of the core cylinder; a number of partitions arranged in a ring array are fixed inside the rotating cylinder, and the partitions divide the inside of the rotating cylinder into at least three independent processing chambers. Based on the fixed position of the tank, a feeding chamber, a sedimentation chamber, and a discharging chamber with constant positions are divided. At least one sedimentation chamber is provided, and multiple sedimentation chambers are arranged adjacent to each other. A bottom plate is fixedly connected inside the tank. The top surface of the bottom plate is in sliding and sealing contact with the bottom surface of the rotating drum. Each processing chamber has an outlet on its side wall. The core cylinder has an inlet on its side wall that matches the outlet. The inlet is located only on the side of the discharge chamber. When the outlet and inlet are aligned and coincident, the sewage inside the processing chamber flows into the core cylinder through the outlet and inlet. The bottom of the core cylinder is connected to a drainage component, and the output end of the drainage component extends out of the tank body to discharge the sewage inside the core cylinder. Each of the processing chambers is provided with a drain port at the bottom, and a plugging plate is inserted and sealed inside the drain port. The bottom plate is provided with a sludge drop hole, and a sludge box is fixedly connected to the bottom surface of the bottom plate. The sludge drop hole connects the processing chamber and the sludge box. A drain pipe connected to the sludge box is installed on the side of the tank. A first drive mechanism is installed on the tank body. The output end of the first drive mechanism is connected to the rotating drum transmission to drive the rotating drum to rotate and realize the position switching of each processing chamber between different chamber positions. The sludge tank is equipped with an opening assembly located directly below the sludge drop hole, which is used to drive the blockage plate to rise and fall, thereby opening and closing the discharge port. Each of the aforementioned processing chambers is equipped with a movably placed magnetic stirring rod. The tank body is equipped with a sludge cleaning mechanism, the output end of which extends into the sludge tank. The sludge cleaning mechanism moves by magnetic linkage with the magnetic stirring rod, pushing the sludge settled at the bottom of the processing chamber to the discharge port. A water supply pipe and a chemical dosing pipe are installed through the top of the tank. Both the water supply pipe and the chemical dosing pipe are only connected to the feeding chamber. A monitoring sensor is fixedly installed inside the core cylinder. The monitoring sensor is used to collect the wastewater quality parameters inside the core cylinder in real time.

2. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, The outlet is fitted with a filter screen.

3. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, The drainage assembly includes a water pump, a suction pipe, and a drain pipe; the water pump is fixedly installed on the outer wall of the tank, the two ends of the suction pipe are respectively connected to the water pump inlet and the bottom of the core cylinder, and the two ends of the drain pipe are respectively connected to the water pump outlet and the outside of the tank.

4. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, The first drive mechanism includes a first servo motor, a first gear, and a gear ring; the gear ring is coaxially and fixedly sleeved on the outer wall of the rotating drum, the first servo motor is fixedly installed on the top surface of the tank, the first gear is fixedly installed on the end of the output shaft of the first servo motor, and the first gear is meshed with the gear ring for transmission.

5. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, The sludge removal mechanism includes an arc-shaped guide rail, a slider, a first telescopic rod, a first mounting plate, a first magnet, and a power mechanism; The arc-shaped guide rail is fixedly installed on the top surface of the tank and coaxially arranged with the rotating drum. The slider is slidably engaged on the arc-shaped guide rail. The first telescopic rod is vertically inserted through the tank, with the top end fixedly connected to the slider and the bottom end extending into the sludge tank and fixed to the first mounting plate. Two first magnets are symmetrically fixed at both ends of the first mounting plate, and the magnetic poles of the two first magnets are opposite in orientation. The tank has an opening for the arc-shaped movement of the first telescopic rod. A telescopic sealing cover is sealed between the first telescopic rod and the opening. The power mechanism is installed on the arc-shaped guide rail and is used to drive the slider to slide circumferentially along the arc-shaped guide rail.

6. The municipal wastewater treatment online monitoring and drainage device according to claim 5, characterized in that, The power mechanism includes a second servo motor, a second gear, and an arc rack; The bottom of the slider is fixedly connected to a mounting bracket extending below the arc-shaped guide rail. The arc-shaped guide rail has a sliding hole for the mounting bracket to slide. The second servo motor is fixedly mounted on the bottom end of the mounting bracket. The second gear is fixedly mounted on the output shaft of the second servo motor. The arc-shaped rack is fixed on the outer wall of the arc-shaped guide rail and is coaxial with the arc-shaped guide rail. The second gear meshes with the arc-shaped rack for transmission.

7. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, The opening assembly includes a third telescopic rod and a third magnet; The third telescopic rod is vertically fixed at the bottom of the sludge tank, the third magnet is fixedly installed at the top of the telescopic end of the third telescopic rod, and all the bottom surfaces of the blocking plates are fitted with iron pieces that magnetically engage with the third magnet.

8. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, A grid is fixedly embedded inside the sewage outlet. The top surface of the grid is flush with the bottom surface of the treatment chamber. The grid has a large-aperture mesh structure, which prevents the magnetic stirring rod from falling and does not obstruct the passage of sludge.

9. The municipal wastewater treatment online monitoring and drainage device according to claim 1, characterized in that, It also includes a second drive mechanism, which is installed on the bottom of the base plate directly below the loading chamber. The second drive mechanism includes a second telescopic rod, a third servo motor, a second mounting plate, and a second magnet. The second telescopic rod is vertically fixed to the bottom of the tank. The third servo motor is fixedly installed at the top of the telescopic end of the second telescopic rod. The second mounting plate is fixed to the top of the output shaft of the third servo motor. The two second magnets are symmetrically fixed at both ends of the second mounting plate, and the magnetic poles of the two second magnets are opposite in orientation.

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