A magnetic coagulation sedimentation tank inclined pipe filling device and a method for using the same

Abstract

The application discloses a kind of magnetic coagulation sedimentation tank inclined pipe packing flushing device, belong to water treatment equipment technical field.There are generally flushing blind area big, cleaning not completely, need to stop machine operation, energy consumption is high, intelligent degree is low and other problems in prior art.The application includes sedimentation tank main body, inclined pipe packing component, online flushing mechanism, water supply and gas supply component, intelligent control component, adopt mobile scanning flushing structure, completely eliminate traditional fixed pipeline flushing blind area, by aeration pre-loosening, gas-water pulse combined flushing, high-pressure pure water fine flushing grading adapts different blockage conditions, simultaneously realizes sedimentation tank effluent reuse flushing, equipment parameter self-adapting regulation, can complete inclined pipe packing global cleaning on-line without stopping machine, effectively solve the problem that magnetic powder is hard, biofilm attachment leads to inclined pipe blockage, flushing effect is good, energy consumption is low, operation and maintenance are convenient, can be widely adapted to the normal operation and maintenance cleaning work of various magnetic coagulation sedimentation tank, effectively guarantee water treatment system long-term stable and efficient operation.

Description

Technical Field

[0001] This invention belongs to the field of water treatment technology, specifically a magnetic coagulation sedimentation tank inclined tube packing flushing device and its usage method. Background Technology

[0002] Magnetic coagulation sedimentation technology, with its advantages of magnetic seed loading flocculation, high floc density, fast settling velocity, and small footprint, is widely used in water treatment fields such as municipal sewage upgrading, advanced industrial wastewater treatment, and river water management. The inclined tube packing of the magnetic coagulation sedimentation tank is the core solid-liquid separation component. Utilizing the principle of shallow sedimentation, it significantly increases the sedimentation treatment load, effectively shortens the settling path of magnetic flocs, and ensures high flow rate and high efficiency operation of the system.

[0003] In actual operation, magnetic flocs, colloidal pollutants, microorganisms, and suspended solids in wastewater easily adhere to and accumulate on the inner wall of the inclined tube packing. After long-term operation, a dense layer of magnetic sludge and biofilm will form, causing narrowing and local blockage of the inclined tube flow channels. Blockage of the inclined tubes will directly lead to uneven distribution of rising water flow in the sedimentation tank, frequent short-circuiting, significantly reducing solid-liquid separation efficiency, and causing problems such as excessive suspended solids and turbidity in the effluent. This seriously affects the stable operation of the water treatment system, shortens the service life of the inclined tube packing, and increases equipment operation and maintenance costs.

[0004] Currently, the main flushing methods for magnetic concrete inclined tube packing in the industry are divided into manual high-pressure water flushing, fixed pipeline hydraulic flushing, fixed aeration flushing, and conventional air-water combined flushing. All of these methods have obvious technical defects and cannot meet the specific cleaning needs of dense magnetic scale in magnetic concrete. Among these methods, manual high-pressure flushing requires shutdown, emptying of the pool water, and interruption of production, resulting in high operational risks, large water consumption, incomplete flushing, and easy damage to the inclined tube packing. Furthermore, it cannot achieve routine maintenance. Fixed perforated pipe hydraulic flushing has a simple structure, but it has blind spots in flushing areas such as the pool edge and under the support. It can only clean the surface sludge and has a very poor effect on removing hardened magnetic scale. Moreover, the nozzles are easily clogged and rendered ineffective by magnetic powder. Pure aeration flushing relies on air bubbles to loosen the sludge, resulting in high energy consumption and noise. It cannot completely remove stubborn scale and is only suitable for light sludge accumulation. Conventional air-water combined flushing often adopts a fixed sequence and fixed pressure operation mode with a fixed pipeline layout. The flushing coverage is limited, and there are still local dead spots of sludge accumulation. In addition, it cannot adaptively adjust the flushing parameters according to the degree of sludge blockage in the inclined tube, resulting in poor intelligence and adaptability.

[0005] In addition, existing mobile flushing equipment mostly relies on the modification of sludge scrapers or overhead cranes, which involves large-scale modification projects, poor sealing reliability, complex equipment operation and maintenance, and low adaptability to small and medium-sized water treatment scenarios. In summary, existing flushing technologies generally suffer from technical pain points such as the need for shutdown flushing, large flushing blind spots, poor removal effect on stubborn magnetic scale, high energy consumption, low level of intelligence, and cumbersome operation and maintenance. They are difficult to meet the actual operation and maintenance needs of long-term stable, low-consumption, high-efficiency, and non-stop online cleaning of magnetic coagulation sedimentation tanks. Therefore, there is an urgent need to develop a targeted, comprehensive, adaptive, and online-operable magnetic coagulation sedimentation tank inclined tube packing flushing device and its usage method. Summary of the Invention

[0006] This invention addresses the above-mentioned technical problems by providing a magnetic coagulation sedimentation tank inclined tube packing flushing device that requires no downtime for flushing, has a small flushing blind zone, effectively removes stubborn magnetic scale, has low energy consumption, a high degree of intelligence, and is easy to operate and maintain.

[0007] This invention is achieved through the following technical solution: A magnetic coagulation sedimentation tank inclined tube packing flushing device includes a sedimentation tank body, an inclined tube packing assembly, an online flushing mechanism, a water and air supply assembly, and an intelligent control assembly. The inclined tube packing assembly is mounted at a 60° angle to the horizontal plane in the upper part of the sedimentation tank body, dividing the sedimentation tank body into an upper effluent zone and a lower sedimentation zone. The bottom of the inclined tube packing assembly has an angle of 30° to 75° with the horizontal plane. The online flushing mechanism includes a flushing guide rail, a flushing frame, a high-pressure water flushing pipe, and an aeration flushing pipe. The sedimentation zone is located on an inclined tube packing assembly. A flushing guide rail running through the entire area is installed directly below the packing assembly. A flushing frame is mounted on this guide rail, allowing it to reciprocate along the length and width of the sedimentation tank. This eliminates the need for traditional fixed piping layouts and completely removes blind spots in the flushing process. High-pressure water flushing pipes and aeration flushing pipes are staggered on the flushing frame. The high-pressure water flushing pipes have multi-angle adjustable nozzles evenly arrayed along their walls. These nozzles are tilted and aimed at the inner wall of the inclined packing, enabling multi-angle flushing of the inclined tubes from both forward and oblique directions. The aeration... The flushing pipe is equipped with densely packed microporous aeration holes, which can output uniform microbubbles to pre-loosen scale. The high-pressure water flushing pipe and the aeration flushing pipe move synchronously with the frame to achieve full-area, zone-by-zone scanning flushing. The water and air supply components include a variable frequency booster pump, a Roots blower, a return water filtration unit, and a pressure-stabilizing and diverting valve group. The input end of the return water filtration unit is connected to the sedimentation tank outlet channel, and the output end is connected to the variable frequency booster pump. It can reuse qualified effluent as flushing water, reducing the consumption of municipal tap water. At the same time, it has a built-in magnetic powder interception filter to prevent nozzle clogging. The variable frequency booster water pump and Roots blower are connected to the high-pressure water flushing pipe and aeration flushing pipe respectively through the pressure stabilizing and diverting valve group, which can adjust the water pressure and aeration volume in real time. The intelligent control component is electrically connected to the water supply and air supply components and then connected to the online flushing mechanism. The intelligent control component has a built-in timing control module and a blockage sensing module, which can automatically match three working modes according to the degree of blockage of the inclined pipe: pure aeration loosening, air-water pulse combined flushing, and high-pressure pure water fine flushing. It adaptively adjusts the walking speed, flushing time, water pressure and aeration volume of the online flushing mechanism.

[0008] Furthermore, the high-pressure water flushing pipe and the aeration flushing pipe on the online flushing mechanism adopt an integrated layout of upper and lower layers, with the high-pressure water flushing pipe located above the aeration flushing pipe, and the distance between the two and the bottom of the inclined tube packing is maintained at 150-300mm, ensuring that the microbubbles can fully rise and the high-pressure water flow can accurately hit the inside of the inclined tube, avoiding interference of the pipeline with the flushing path.

[0009] Furthermore, the multi-angle adjustable nozzle on the online flushing mechanism is installed on the high-pressure water flushing pipe through a universal rotary joint. The nozzle adjustment angle range is 0° to 45°, which can match the inclined tube packing with different inclination angles, accurately aiming at the inner wall channel of the inclined tube for jet flushing, without any dead angles in the flushing.

[0010] Furthermore, the microporous aeration holes of the aeration flushing pipe on the online flushing mechanism are set to a diameter of 0.8 to 1.5 mm, and the aeration holes are evenly distributed along the upper and lower sides of the pipe body. The output microbubbles have uniform particle size and strong rising stability, which can fully adhere to the inner wall of the inclined pipe and climb up, thereby improving the pre-loosening effect of the plated magnetic scale and biofilm.

[0011] Furthermore, the return water filtration unit on the water and gas supply assembly is a self-cleaning precision filter. The internal detachable magnetic powder interception filter screen is made of high-precision stainless steel sintered filter screen, and a drain port is set at the bottom of the filter. It can automatically intercept and discharge residual magnetic powder and impurities in the water at regular intervals, continuously ensuring the cleanliness of the flushing water source and completely eliminating the problem of nozzle and pipeline blockage.

[0012] Furthermore, the pressure-stabilizing and diverting valve group on the water and air supply assembly includes a water pressure stabilizing valve, an air pressure stabilizing valve, and a pulse electromagnetic diverting valve, which can respectively stabilize the water supply pressure of the high-pressure water flushing pipe and the air supply pressure of the aeration flushing pipe, and work with the intelligent control component to realize the intermittent pulse alternating on and off of water and air, forming a high-frequency pulse flushing water flow and air flow, which enhances the scale removal effect.

[0013] Furthermore, the blockage sensing module on the intelligent control component includes an effluent turbidity sensor and a water flow velocity sensor. Both the turbidity sensor and the flow velocity sensor are installed in the upper effluent area of ​​the sedimentation tank to collect effluent turbidity and water flow status data in real time. By comparing preset thresholds with a built-in algorithm, the mild, moderate, and severe blockage status of the inclined tube packing is accurately determined.

[0014] This invention also provides a method for using a flushing device for inclined tube packing in a magnetic coagulation sedimentation tank, comprising the following steps: S1. Standby monitoring: Under normal water treatment conditions, the intelligent control component monitors the turbidity and flow velocity parameters of the sedimentation tank effluent in real time and predicts the degree of blockage of the inclined tube packing, without the need for manual operation. S2, Mode Adaptive Start: For mild blockage, activate the pre-loosening mode, only turn on the Roots blower, the flushing frame moves at low speed across the entire area, and microbubbles climb along the inner wall of the inclined tube to loosen the surface biofilm and loose magnetic flocs for 3-8 minutes; for moderate blockage, activate the air-water pulse combined flushing mode, the blower and water pump start and stop synchronously and intermittently, and the pulsed water-air mixed flow impacts the inner wall of the inclined tube to peel off the hardened magnetic mud; for severe blockage, activate the high-pressure fine flushing mode, turn off aeration, increase the water pump pressure, and use multi-angle nozzles to precisely flush away stubborn hard scale. S3, Full-area scanning flushing: During the flushing process, the flushing frame moves back and forth at a constant speed, covering the entire inclined tube area without dead angles, and simultaneously adjusting the nozzle angle to match the inclined tube inclination angle, ensuring that the inner wall of each inclined tube is fully flushed; the flushing water source is preferentially the effluent from the sedimentation tank that meets the standards, which is filtered and pressurized before use. S4. Linked sludge discharge and settling: After the single area is flushed, the bottom scraper and automatic sludge discharge valve are opened after a delay to collect and discharge the loose magnetic sludge and scale. After the sludge discharge is completed, let it stand for 1 to 3 minutes until the water flow stabilizes before entering the next area for flushing. S5. Shutdown and Reset: After the full-area flushing is completed, the water and air supply components are turned off, the flushing frame is reset to the initial position, and the system resumes normal water treatment operation. No shutdown or emptying of the pool water is required throughout the process.

[0015] This invention aims to overcome the shortcomings of existing technologies for flushing inclined tube packing in magnetic coagulation sedimentation tanks, such as downtime, numerous flushing blind spots, incomplete removal of stubborn magnetic scale, high energy consumption, insufficient intelligence, and complex operation and maintenance. It provides a flushing device for inclined tube packing in magnetic coagulation sedimentation tanks and its usage method. This invention enables full coverage and blind-spot-free online flushing of the inclined tube packing, adaptable to different clogging conditions such as magnetic flocs, hard magnetic scale, and biofilms, and can adaptively adjust flushing parameters, significantly improving flushing efficiency, reducing operation and maintenance costs, and ensuring long-term stable and efficient operation of the water treatment system.

[0016] Compared with the prior art, the present invention has the following significant advantages: (1) No blind spot online flushing, no impact on production operation: The present invention adopts a mobile full-area scanning flushing structure to replace the traditional fixed pipeline, completely solve the problem of flushing dead corners such as pool walls and under supports. No need to stop the machine or empty the pool water throughout the process. It can be adapted to the continuous operation of the system, avoid production interruption and water quality fluctuation problems, and is suitable for the normal operation and maintenance of various magnetic coagulation sedimentation tanks.

[0017] (2) Layered adaptive flushing, with excellent cleaning effect on stubborn magnetic scale: Three adaptive flushing modes are set up to precisely adapt to different clogging conditions such as loose flocs, hardened magnetic mud, hard scale, and biofilm. First, air loosening, then water flushing, and pulse enhancement completely solve the technical problem that traditional single flushing mode cannot clean dense magnetic scale, and greatly reduce the probability of inclined tube blockage.

[0018] (3) Energy saving and consumption reduction, anti-clogging and durable: The use of sedimentation tank effluent for flushing greatly saves water resources; with variable frequency pressure regulation and variable speed walking control, energy consumption can be adjusted as needed. Compared with traditional continuous constant pressure flushing, energy consumption is reduced by more than 30%; the water source pre-positioned magnetic powder filter structure effectively avoids nozzle and pipeline blockage, reducing equipment failure rate and operation and maintenance costs.

[0019] (4) High level of intelligence and convenient operation and maintenance: Fully automated monitoring, adaptive start and stop, and linkage sludge discharge. No manual intervention is required. It can realize unattended routine flushing, and is suitable for various water treatment projects of large, medium and small size, solving the problems of complex control and difficult operation and maintenance of traditional equipment.

[0020] (5) Protect the packing and extend the service life of the equipment: The flexible bubble loosening + controllable high pressure pulse flushing avoids the problems of inclined tube deformation and cracking caused by traditional manual high pressure direct flushing, effectively protects the inclined tube packing structure, greatly extends the service life of the equipment, and reduces the cost of modification and replacement. Attached Figure Description

[0021] In the attached diagram, Figure 1 This is a schematic diagram of the inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to the present invention. Figure 2 This is a schematic diagram of the online flushing mechanism and water and air supply components of the present invention, wherein: 1—Sedimentation tank body; 2—Inclined tube packing assembly; 3—Online flushing mechanism; 4—Water and air supply assembly; 5—Intelligent control assembly; 11—Outlet area; 12—Sedimentation area; 31—Flushing guide rail; 32—Flushing frame; 33—High-pressure water flushing pipe; 34—Aeration flushing pipe; 41—Variable frequency booster pump; 42—Roots blower; 43—Return water filter unit; 44—Pressure stabilizing and diverting valve assembly. Detailed Implementation

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] like Figure 1 , Figure 2 As shown, a magnetic coagulation sedimentation tank inclined tube packing flushing device and its usage method include a sedimentation tank body 1, an inclined tube packing assembly 2, an online flushing mechanism 3, a water and air supply assembly 4, and an intelligent control assembly 5. The inclined tube packing assembly 2 is mounted at a 60° angle to the horizontal plane in the upper part of the sedimentation tank body 1, dividing the sedimentation tank body 1 into an upper effluent zone 11 and a lower sedimentation zone 12. The bottom of the inclined tube packing assembly 2 has an angle of 30° to 75° with the horizontal plane, and the magnetic flocs complete shallow sedimentation separation at the inclined tube packing assembly 2. The online flushing mechanism 3 is set directly below the inclined tube packing assembly 2, wherein the flushing guide rail 31 runs through the entire sedimentation zone 12, and a flushing frame 32 is set on the flushing guide rail 31. The flushing frame 32 can move back and forth along the flushing guide rail 31 in the length and width directions of the sedimentation tank body 1, realizing full coverage and scanning flushing of the bottom of the inclined tube packing without dead angles, completely avoiding the problem of blind spots in flushing at the corners and under the supports that exist in traditional fixed pipelines.

[0024] The flushing frame 32 integrates staggered, layered high-pressure water flushing pipes 33 and aeration flushing pipes 34. The high-pressure water flushing pipes 33 are located above the aeration flushing pipes 34, and the distance between the high-pressure water flushing pipes 33 and aeration flushing pipes 34 and the bottom of the inclined tube packing is controlled at approximately 200mm to ensure optimal water jet angle and bubble rising path, preventing interference. Several multi-angle adjustable nozzles are evenly arrayed on the high-pressure water flushing pipes 33. The nozzles adopt a universal rotary joint structure, allowing for arbitrary angle adjustment within the range of 0° to 45°, precisely matching the tilt angle of different specifications of inclined tube packing. This allows the high-pressure water flow to directly and obliquely penetrate the internal channels of the inclined tubes, comprehensively flushing and removing magnetic mud, biofilm, and hard scale adhering to the pipe walls. The aeration flushing pipes 34 have densely arranged microporous aeration holes on their walls, with a preferred hole diameter of 1.0mm, and employ a staggered opening method.

[0025] The water and air supply assembly 4 includes a variable frequency booster pump 41, a Roots blower 42, a return water filter unit 43, and a pressure-stabilizing and diverting valve group 44. During operation, the Roots blower 42 provides a stable air source, which is then stabilized by the pressure-stabilizing and diverting valve group 44 and overflows from the microporous aeration holes, forming uniformly sized and steadily rising microbubbles. A large number of microbubbles continuously climb upwards along the inner wall of the inclined tube, utilizing the shearing disturbance, volume expansion and lifting, and negative pressure peeling effect of the bubbles to pre-loosen the hardened magnetic scale layer on the inner wall of the inclined tube. This loosens and breaks up the stubborn scale that is tightly attached to the tube wall, providing good working conditions for subsequent high-pressure water flushing and solving the defect that single water flushing is difficult to remove hard magnetic scale.

[0026] The return water filtration unit 43 has its input end connected to the upper outlet channel of the sedimentation tank, using the effluent from the sedimentation tank as the flushing water source, replacing traditional municipal tap water for flushing and significantly saving water resources. The return water filtration unit 43 is equipped with a 50μm high-precision detachable stainless steel sintered filter screen, which effectively intercepts residual fine magnetic powder and suspended impurities in the returned water, preventing impurities from entering the pipeline and causing nozzle blockage and pipeline siltation. Simultaneously, an automatic drain port is set at the bottom of the filter, allowing for timed automatic drainage and self-cleaning of the filter screen, eliminating the need for frequent manual disassembly and maintenance. The variable frequency booster pump 41 can adjust the water supply pressure in real time according to control commands, with a pressure adjustment range of 0.2–0.6 MPa, adapting to flushing needs with different degrees of blockage. The Roots blower 42 can stably provide an aeration air source, working in conjunction with a pressure regulating valve to achieve constant air pressure output, avoiding uneven aeration and poor loosening effects caused by air pressure fluctuations.

[0027] The intelligent control component 5 is the core control unit of the device, and it has a built-in timing control module, a blockage sensing module, and a frequency conversion adjustment module. The intelligent control component 5 is first connected to the water supply and air supply component 4 and then to the online flushing mechanism 3. The blockage sensing module includes a turbidity sensor and a flow velocity sensor installed in the effluent area. It can collect turbidity and upward flow data of the sedimentation tank effluent in real time 24 hours a day. It automatically determines the blockage level of the inclined tube packing through a built-in preset threshold algorithm, which divides it into three working conditions: light blockage, moderate blockage, and severe blockage, and adaptively matches the corresponding flushing mode.

[0028] When the system detects a slight blockage, only the Roots blower 42 is started, and the pure aeration loosening mode is activated. The flushing frame 32 scans and moves across the entire area at a relatively fast speed of 0.5 m / s. Through microbubbles, the loose magnetic flocs and thin biofilm on the surface of the loosening inclined tube are continuously disturbed. The flushing time is 3 to 8 minutes, and daily maintenance cleaning is completed with the lowest energy consumption.

[0029] When the system detects a moderate blockage, the air-water pulse combined flushing mode is activated. The timing control module controls the variable frequency booster water pump 41 and the Roots blower 42 to start and stop intermittently and synchronously. A high-frequency pulsed water-air mixed flow is formed through the pressure-stabilizing diversion valve group 44, which alternately impacts the inner wall of the inclined tube. Utilizing the dual effects of air bubble loosening and water flow shearing, the hardened magnetic mud layer that is difficult to remove by conventional flushing is efficiently peeled off. The flushing frame 32 decelerates to 0.25m / s, extending the local flushing time and ensuring the cleaning effect.

[0030] When the system detects severe blockage, the aeration system is shut down, and the high-pressure pure water fine flushing mode is activated. The pressure of the variable frequency booster pump 41 is increased to 0.5-0.6MPa. With the help of multi-angle nozzles, the pump precisely sprays the stubborn hard scale on the inner wall of the inclined tube. The flushing frame 32 moves at low speed to strengthen the flushing of severely blocked areas and thoroughly remove the old scale and thick deposits.

[0031] In this embodiment, the entire device operates automatically without manual intervention, without shutdown or draining of the pool. It completely eliminates blind spots in rinsing through a mobile full-area scanning structure, and precisely adapts to the specific clogging conditions of the magnetic coagulation inclined tube through a graded adaptive rinsing mode. At the same time, it significantly reduces operating energy and water consumption by relying on effluent reuse technology. It effectively solves the technical problems of traditional rinsing equipment, such as incomplete cleaning, cumbersome operation and maintenance, high energy consumption, and easy damage to the packing. The equipment operates stably and has strong adaptability, making it suitable for long-term routine operation and maintenance of various municipal and industrial magnetic coagulation water treatment systems.

[0032] The foregoing merely illustrates the technical concept and features of the invention, and its purpose is to enable those skilled in the art to understand the invention and implement it accordingly. It does not limit the scope of protection of this invention. All equivalent changes or modifications made based on the essence of the invention should be included within the scope of protection of this invention.

Claims

1. A flushing device for inclined tube packing in a magnetic coagulation sedimentation tank, comprising a sedimentation tank body, an inclined tube packing assembly, an online flushing mechanism, a water and air supply assembly, and an intelligent control assembly, characterized in that... The inclined tube packing assembly is installed at a 60° angle to the horizontal plane in the upper part of the sedimentation tank, dividing the sedimentation tank into an upper effluent zone and a lower sedimentation zone. The bottom of the inclined tube packing assembly has an angle of 30° to 75° with the horizontal plane. The online flushing mechanism includes a flushing guide rail, a flushing frame, a high-pressure water flushing pipe, and an aeration flushing pipe. A flushing guide rail is installed directly below the inclined tube packing assembly in the sedimentation zone, running through the entire area. The flushing frame is mounted on the flushing guide rail and can reciprocate along the length and width of the sedimentation tank. The high-pressure water flushing pipe and the aeration flushing pipe are staggered on the flushing frame. The high-pressure water flushing pipe has multi-angle adjustable nozzles evenly arrayed on its wall, and the aeration flushing pipe has densely packed microporous aeration holes. The high-pressure water flushing pipe and the aeration flushing pipe move synchronously with the frame. The water and air supply components include a variable frequency booster pump, a Roots blower, a return water filtration unit, and a pressure-stabilizing and diverting valve group. The input end of the return water filtration unit is connected to the sedimentation tank outlet channel, and the output end is connected to the variable frequency booster pump. It also has a built-in magnetic powder interception filter. The variable frequency booster pump and the Roots blower are respectively connected to the high-pressure water flushing pipe and the aeration flushing pipe through the pressure-stabilizing and diverting valve group, which can adjust the water pressure and aeration volume in real time. The intelligent control component is electrically connected to the water and air supply components and then connected to the online flushing mechanism. The intelligent control component has a built-in timing control module and a blockage sensing module. The intelligent control component judges the degree of blockage of the inclined pipe based on the data output by the blockage sensing module and automatically matches three working modes: pure aeration loosening, air-water pulse combined flushing, and high-pressure pure water fine flushing. It adaptively adjusts the travel speed, flushing time, water pressure, and aeration volume of the online flushing mechanism.

2. The inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... The high-pressure water flushing pipe and the aeration flushing pipe on the online flushing mechanism are integrated in an alternating upper and lower layered manner. The high-pressure water flushing pipe is located above the aeration flushing pipe, and the distance between the two and the bottom of the inclined tube packing is maintained at 150-300mm.

3. The inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... The multi-angle adjustable nozzle on the online flushing mechanism is installed on the high-pressure water flushing pipe through a universal rotary joint, and the nozzle adjustment angle range is 0° to 45°.

4. The inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... The micropore diameter of the aeration holes in the aeration flushing pipe of the online flushing mechanism is set to 0.8-1.5 mm, and the aeration holes are evenly distributed alternately along the upper and lower sides of the pipe body.

5. The inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... The water return filtration unit on the water and gas supply assembly is a self-cleaning precision filter. The internal detachable magnetic powder interception filter screen uses a high-precision stainless steel sintered filter screen, and a drain port is set at the bottom of the filter.

6. The inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... The pressure stabilizing and diverting valve group on the water and air supply assembly includes a water pressure stabilizing valve, an air pressure stabilizing valve, and a pulse electromagnetic diverting valve, which respectively stabilize the water supply pressure of the high-pressure water flushing pipe and the air supply pressure of the aeration flushing pipe, and work with the intelligent control assembly to realize the intermittent pulse-type alternating on and off of water and air.

7. The inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... The blockage sensing module on the intelligent control component includes an effluent turbidity sensor and a water flow velocity sensor. Both the turbidity sensor and the flow velocity sensor are installed in the upper effluent area of ​​the sedimentation tank to collect effluent turbidity and water flow status data in real time. By comparing the data with preset thresholds through a built-in algorithm, the mild, moderate and severe blockage status of the inclined tube packing is accurately determined.

8. The method of using the inclined tube packing flushing device for a magnetic coagulation sedimentation tank according to claim 1, characterized in that... Includes the following steps: S1. Standby monitoring: Under normal water treatment conditions, the intelligent control component monitors the turbidity and flow velocity parameters of the sedimentation tank effluent in real time and predicts the degree of blockage of the inclined tube packing, without the need for manual operation. S2, Mode Adaptive Start: For mild blockage, activate the pre-loosening mode, only turn on the Roots blower, the flushing frame moves at low speed across the entire area, and microbubbles climb along the inner wall of the inclined tube to loosen the surface biofilm and loose magnetic flocs for 3-8 minutes; for moderate blockage, activate the air-water pulse combined flushing mode, the blower and water pump start and stop synchronously and intermittently, and the pulsed water-air mixed flow impacts the inner wall of the inclined tube to peel off the hardened magnetic mud; for severe blockage, activate the high-pressure fine flushing mode, turn off aeration, increase the water pump pressure, and use multi-angle nozzles to precisely flush away stubborn hard scale. S3, Full-area scanning flushing: During the flushing process, the flushing frame moves back and forth at a constant speed, covering the entire inclined tube area without dead angles, and simultaneously adjusting the nozzle angle to match the inclined tube inclination angle, ensuring that the inner wall of each inclined tube is fully flushed; the flushing water source is preferentially the effluent from the sedimentation tank that meets the standards, which is filtered and pressurized before use. S4. Linked sludge discharge and settling: After the single-area flushing is completed, the output signal delay opens the bottom sludge scraper and automatic sludge discharge valve to collect and discharge the detached magnetic sludge and scale. After the sludge discharge is completed, let it stand for 1 to 3 minutes until the water flow stabilizes before entering the next area for flushing. S5. Shutdown and Reset: After the full-area flushing is completed, the water and air supply components are turned off, the flushing frame is reset to the initial position, and the system resumes normal water treatment operation. No shutdown or emptying of the pool water is required throughout the process.

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