A mechanical cleaning method for sewage sludge pool

Abstract

The invention relates to a mechanical cleaning method for a sewage sludge pool, comprising the following steps: S1: measuring the thickness of sludge in the sludge pool by using a detection device; S2: dividing the cleaning area according to the sludge thickness distribution fed back by the detection device; by introducing the detection device and the cleaning strategy of area division, efficient cleaning of the sewage sludge pool is achieved, the detection device comprises an ultrasonic detection module, a floating bracket and a data recording unit, which can adapt to the operation requirements under different water level conditions, and obtains the sludge thickness distribution data in real time and visualizes it in a grid form, such precise thickness measurement and visualization function provides a scientific basis for subsequent cleaning area division, avoids the blind estimation of the cleaning range in the traditional method, greatly improves the cleaning efficiency, and realizes the graded treatment strategy by dividing the area according to the sludge thickness and selecting different cleaning devices, such as high-pressure water jets, mechanical scrapers or adsorption devices.

Description

Technical Field

[0001] The invention relates to the technical field of environmental engineering, and in particular to a mechanical cleaning method for a sewage sludge pool. Background Art

[0002] Sewage treatment is an important part of modern industrial and urban development. A large amount of sludge is often produced during the sewage treatment process. This sludge accumulates at the bottom of the sewage treatment tank or sedimentation tank. If it is not cleaned in time, the tank capacity will decrease, the treatment efficiency will be reduced, and environmental pollution problems will be caused. At present, the cleaning of sewage sludge tanks mainly relies on manual operation or traditional mechanical methods, but these methods have many limitations in practical applications.

[0003] According to the invention patent of Chinese patent number CN112194325A, a sewage treatment system is disclosed, which is basically described as comprising a sewage collection tank, a solid-liquid separation tank, a flocculation sedimentation tank, a sludge tank, a regulating tank, an ABR reaction tank, an oxidation tank, an activated carbon tank and a water storage tank. The sewage treatment system connects the linear motor and the movable frame through a slider after the sewage treatment system performs sewage treatment once, and because the bottom of the movable frame is connected to the top of the cleaning plate, the cleaning plate is driven to slide on the top surface of the filter plate toward the side of the material hole, and the cleaning plate pushes the sludge and impurities in the solid-liquid separation tank from the inside of the guide pipe to fall into the sludge tank, and repeats the above operation inside the flocculation sedimentation tank to complete the cleaning of the suspended matter above the filter membrane in the flocculation sedimentation tank, effectively solving the problems of high cost of sewage treatment plants and unsatisfactory sewage treatment effect, and using a mechanical structure to replace manual cleaning of the sludge deposited at the bottom of the equipment, reducing the consumption of labor costs, and having a good cleaning effect.

[0004] In the actual implementation process, there are still some problems: Traditional manual cleaning methods are inefficient and labor-intensive, especially when dealing with deeper or larger sludge pools, the operational difficulty and safety risks are significantly increased. In addition, manual cleaning cannot accurately grasp the distribution of sludge, which can easily lead to sludge residue or excessive cleaning, thus affecting the normal operation of the sewage treatment pool. Some existing mechanical cleaning equipment uses a single cleaning tool, such as high-pressure water jets or mechanical scrapers, which makes it difficult to flexibly adjust the cleaning method according to the sludge thickness and adhesion conditions, resulting in incomplete cleaning of thicker sludge areas and possible damage to thin sludge layers or pool bottom materials. In addition, most existing equipment lacks accurate sludge detection functions and cannot achieve effective assessment of sludge distribution before operation. The planning of cleaning paths usually relies on manual experience, which affects cleaning efficiency and effectiveness. Another key issue is that the sludge stripped during the cleaning process is usually mixed with sewage, and the existing equipment has limited sludge collection and separation processing capabilities, resulting in increased sludge transportation and treatment costs.

[0005] Therefore, a sewage sludge pool mechanical cleaning method is proposed to solve the above-mentioned problems. Summary of the invention

[0006] 1. Technical issues to be resolved In order to solve the above-mentioned problems in the prior art, the present invention provides a mechanical cleaning method for a sewage sludge pool, which can realize accurate measurement of sludge thickness, area division and graded cleaning, and combines efficient sludge collection and separation technology to greatly improve cleaning efficiency, reduce labor intensity and environmental impact to solve the problems of low efficiency and high labor intensity of traditional manual cleaning, and the single function of existing mechanical equipment, which makes it difficult to accurately clean sludge, resulting in low efficiency and high cost.

[0007] (II) Technical solution In order to achieve the above object, the main technical solutions adopted by the present invention are: A method for mechanically cleaning a sewage sludge pool comprises the following steps: S1: Use the detection device to measure the thickness of the sludge in the sludge tank; S2: Divide the cleaning area according to the sludge thickness distribution fed back by the detection device; S3: According to the sludge thickness in different areas, one or more of high-pressure water jets, mechanical scrapers or adsorption devices are used for cleaning; S4: Collect the stripped sludge and transport it to the sludge collection equipment through a vacuum adsorption device; S5: After cleaning, recheck the bottom of the sludge pool to ensure there is no residual sludge.

[0008] The detection device includes an ultrasonic detection module, a floating bracket and a data recording unit, which are used to measure the thickness of the sludge layer in real time under different water level conditions. The measurement results display the sludge distribution in the form of a grid, providing an accurate basis for subsequent area division.

[0009] The cleaning area is divided into thick layer area, middle layer area and thin layer area according to the sludge thickness. Different priorities and cleaning methods are used in each area. The area division results are intuitively marked on the display interface for operators to guide equipment operation.

[0010] The thick layer area is preferentially stripped by high-pressure water jets, and the water jet pressure range is adjustable to avoid damage to the pool bottom. The middle layer area is cleaned with a mechanical scraper, and the scraper can adjust the depth and contact angle through the hydraulic system to adapt to different sludge thicknesses. The thin layer area is mainly cleaned carefully using an adsorption device, and the adsorption head has a flexible structure to ensure that there are no scratches on the pool bottom.

[0011] The adsorption device includes a vacuum pipe and a flexible suction head. The diameter of the suction head can be automatically adjusted according to the thickness of the sludge to improve the adsorption efficiency. An anti-blocking device is arranged in the vacuum pipe, which can self-clean regularly to prevent high-concentration sludge from blocking the conveying channel.

[0012] The review uses the original detection device to rescan to confirm whether there are any uncleaned areas, perform additional cleaning procedures on the residual sludge, and generate a cleaning completion report.

[0013] The sludge collection equipment includes a cyclone separator for solid-liquid separation of the adsorbed sludge; Multi-chamber sludge storage tanks are used to store sludge according to its particle size and moisture content; The sludge after solid-liquid separation is transported to subsequent treatment equipment through the discharge port.

[0014] The cleaning path is divided into priority areas according to the sludge thickness from thick to thin. The path planning includes: The divided cleaning paths are marked with underwater markers to facilitate the equipment to operate along the paths; After the cleaning is completed, the path is re-detected by the detection device to confirm whether there are any missed areas; If there are uncleaned areas, start supplementary cleaning directly and record the path coverage.

[0015] The high-pressure water jet device comprises: The pressure range is adjustable from 10 MPa to 50 MPa to adapt to different sludge adhesion strengths; Equipped with rotating nozzles to ensure that the water jets act evenly on the pool bottom; The nozzle is installed on a lifting mechanical arm, and the spray angle and height can be adjusted to adapt to the complex structure of the pool bottom; The anti-clogging function ensures that the equipment can continue to work in a high-concentration sludge environment.

[0016] The cleaning device is installed on a mobile platform, and the mobile platform includes: Tracked chassis, suitable for complex terrain or different pool bottom structures; Level adjuster to ensure stable operation in uneven pool bottom environment; Anti-skid device, used to maintain the platform's grip in slippery conditions; The platform supports manual operation mode, which allows operators to flexibly control the equipment.

[0017] (III) Beneficial effects The beneficial effects of the present invention are: By introducing a detection device and a cleaning strategy of area division, efficient cleaning of the sewage sludge pool is achieved. The detection device includes an ultrasonic detection module, a floating bracket and a data recording unit, which can adapt to the operation requirements under different water level conditions and obtain sludge thickness distribution data in real time and visualize it in a grid form. This precise thickness measurement and visualization function provides a scientific basis for the subsequent cleaning area division, avoids the blind estimation of the cleaning range in traditional methods, and greatly improves the cleaning efficiency. By dividing the area according to the sludge thickness and selecting different cleaning devices, such as high-pressure water jets, mechanical scrapers or adsorption devices, graded treatment is achieved. The thick layer area is preferentially stripped by high-pressure water jet, the middle layer area is cleaned by depth adjustment of mechanical scraper, and the thin layer area is carefully treated mainly by flexible adsorption device. The targeted design of different devices ensures the efficient cleaning of various sludge thicknesses while avoiding damage to the bottom structure of the pool. In addition, the detection device is used to rescan the bottom of the sludge pool in the review stage to promptly discover the missed areas and carry out additional cleaning, ensuring the comprehensiveness and thoroughness of the cleaning effect, and generating a cleaning completion report to provide support for the operation record. This strategy based on precise measurement and graded cleaning enables the present invention to have significant advantages of high efficiency, comprehensiveness and controllability in the cleaning of complex sludge pools. The invention greatly improves the mechanization level and environmental adaptability of sludge cleaning and treatment through the innovative design of equipment combination and working platform. The sludge collection equipment adopts cyclone separator to separate the adsorbed sludge into solid and liquid, and classifies the sludge according to particle size and water content and stores it in a multi-chamber storage tank. The separated sewage is purified by a three-stage filtration device and then recycled back to the tank for use, which significantly reduces water resource consumption and optimizes the subsequent sludge treatment process. The cleaning path planning is based on the priority division of areas from thick to thin based on the sludge thickness, and is marked by underwater markers to ensure the accuracy of the equipment operation path. The high-pressure water jet device adopts adjustable pressure and rotating nozzle design, combined with the lifting The robot arm can be lowered to adapt to the operational requirements of different adhesion strengths and pool bottom structures. The anti-clogging function ensures continuous and stable operation in a high-concentration sludge environment. In addition, the cleaning equipment is installed on a mobile platform composed of a crawler chassis and a level adjuster, so that the equipment can adapt to uneven pool bottoms and slippery environments. The anti-slip design further enhances operational safety. The platform supports manual operation mode, giving operators the ability to flexibly control the equipment, making the cleaning process more efficient and precise. The above technical features complement each other, not only improving the efficiency and reliability of sludge cleaning, but also ensuring the adaptability and environmental friendliness of the equipment, providing a complete solution for sewage sludge pool cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall flow of the cleaning method of the present invention; Figure 2 is a trend diagram of the cleaning efficiency of the present invention; Figure 3It is a schematic diagram of part of the working process of the present invention. DETAILED DESCRIPTION

[0019] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0020] Please refer to Figures 1 to 3 As shown, a mechanical cleaning method for a sewage sludge pool of the present invention comprises the following steps: S1: Use the detection device to measure the thickness of the sludge in the sludge tank; S2: Divide the cleaning area according to the sludge thickness distribution fed back by the detection device; S3: According to the sludge thickness in different areas, one or more of high-pressure water jets, mechanical scrapers or adsorption devices are used for cleaning; S4: Collect the stripped sludge and transport it to the sludge collection equipment through a vacuum adsorption device; S5: After the cleaning is completed, recheck the bottom of the sludge pool to ensure that there is no residual sludge. In the actual implementation process, a detection device integrating an ultrasonic detection module, a floating bracket and a data recording unit is used to measure the sludge thickness at the bottom of the sludge pool in real time under different water level conditions. The measurement results are visualized in the form of a grid, providing a scientific basis for the division of the cleaning area to avoid blind estimation and invalid operations. According to the measurement data, the sludge pool is divided into thick layer area, middle layer area and thin layer area. Each area adopts different cleaning methods according to the sludge thickness: high-pressure water jet devices are used preferentially in thick layer areas to peel off firmly attached sludge through adjustable pressure and rotating nozzles; mechanical scraper devices are used in the middle layer area to adjust the depth and contact angle through the hydraulic system to adapt to changes in sludge thickness; flexible adsorption devices are used to carefully clean the thin layer area to avoid damage to the bottom of the pool. During the cleaning process, the stripped sludge is collected by a vacuum adsorption device and transported to the cyclone separator for solid-liquid separation. The separated sludge is stored in multi-compartment storage tanks according to particle size and water content. The sewage is purified by a three-stage filtration device and then recycled. The cleaning path is planned based on the sludge thickness, with priority given to dividing it from thick to thin. The equipment path is accurate by marking underwater markers. After the cleaning is completed, the detection device rescans to confirm the missed areas and starts supplementary cleaning. Both the high-pressure water jet device and the adsorption equipment are designed to prevent blocking to ensure continuous and efficient operation of the cleaning process. The equipment is installed on a mobile platform consisting of a crawler chassis and a level adjuster. The platform has good adaptability and can cope with uneven pool bottoms and slippery environments. The anti-slip device enhances operational safety and supports manual operation mode, giving operators the ability to flexibly control the equipment. The overall system operates in a coordinated manner, and through the linkage of multiple links such as detection, division, cleaning and treatment, efficient, accurate and safe cleaning of the sludge pool is achieved.

[0021] Optionally, the detection device includes an ultrasonic detection module, a floating bracket and a data recording unit, which are used to measure the thickness of the sludge layer in real time under different water level conditions. The measurement results display the sludge distribution in the form of a grid, providing an accurate basis for subsequent regional division. In the actual implementation process, the detection device is started to measure the thickness of the sludge layer in real time under different water level conditions; the stability of the detection device is ensured by the floating bracket, and the ultrasonic module accurately measures the thickness of the sludge layer in the form of a grid, and the data is intuitively displayed through the display interface, providing high-resolution sludge distribution data, providing a reliable basis for the scientific division of the subsequent cleaning area, avoiding the blindness of traditional cleaning methods, and improving the accuracy and overall efficiency of the cleaning work.

[0022] Optionally, the cleaning area is divided into thick layer area, middle layer area and thin layer area according to the sludge thickness. Different priorities and cleaning methods are used for each area. The area division results are intuitively marked on the display interface for operators to guide equipment operation. In the actual implementation process, grid division is performed based on thickness data, and different areas are marked according to priority; the division results are visualized through the display interface for operators to confirm the cleaning path, ensuring that the cleaning equipment can select the appropriate cleaning method in a targeted manner, realize graded treatment, avoid excessive cleaning or waste of resources, and improve equipment cleaning efficiency and sludge pool bottom protection effect.

[0023] Optionally, high-pressure water jet stripping is preferred for thick layer areas, and the water jet pressure range can be adjusted to avoid damage to the pool bottom. The middle layer area is cleaned with a mechanical scraper. The scraper can adjust the depth and contact angle through the hydraulic system to adapt to different sludge thicknesses. The thin layer area is mainly cleaned with an adsorption device. The adsorption head has a flexible structure to ensure that there are no scratches on the pool bottom. In the actual implementation process, the high-pressure water jet pressure range is set to 30-50 MPa, and the rotating nozzle is started to strip the sludge; the operation steps for the middle layer area are: adjust the depth of the mechanical scraper to 5-20 mm, and adjust the scraper angle to match the sludge attachment state; the operation steps for the thin layer area are: use a flexible adsorption device for cleaning, and the suction head diameter is automatically adjusted to 5-10 cm to ensure that the pool bottom is not damaged. Optimized cleaning methods are used for different thickness areas to significantly improve the cleaning effect, while avoiding damage to the pool bottom or insufficient cleaning.

[0024] Optionally, the adsorption device includes a vacuum pipe and a flexible suction head. The diameter of the suction head can be automatically adjusted according to the thickness of the sludge to improve the adsorption efficiency. The vacuum pipe is equipped with an anti-blocking device, which can be self-cleaned regularly to prevent high-concentration sludge from blocking the conveying channel. In the actual implementation process, the suction head diameter and vacuum adsorption strength are adjusted according to the measured sludge thickness, and the stripped sludge is transported to the sludge collection equipment through the vacuum pipe; the anti-blocking device is used for regular self-cleaning to ensure that the adsorption device can operate continuously and stably in a high-concentration sludge environment, significantly improve the sludge collection efficiency, prevent sludge from blocking the equipment pipe, reduce the equipment operation failure rate, and ensure the efficiency and reliability of the cleaning process.

[0025] Optionally, the review uses the original detection device to rescan to confirm whether there are uncleaned areas, perform supplementary cleaning procedures for residual sludge, and generate a cleaning completion report. In the actual implementation process, rescan the pool bottom to confirm the cleaning coverage; mark the uncleaned areas and start the supplementary cleaning procedure; finally generate a cleaning completion report, record the cleaning path and coverage rate, and achieve full coverage cleaning without omissions through review and supplementary cleaning to ensure the cleanliness of the sludge pool bottom, while providing reliable data support for subsequent maintenance.

[0026] Optionally, the sludge collection device includes a cyclone separator for solid-liquid separation of the adsorbed sludge; Multi-chamber sludge storage tanks are used to store sludge according to its particle size and moisture content; After solid-liquid separation, the sludge is transported to the subsequent treatment equipment through the discharge port. In the actual implementation process, the cyclone separator is started to separate the adsorbed sludge into solid and liquid; the separated sludge is classified and stored in a multi-chamber storage tank according to particle size and moisture content; the sludge is transported to the subsequent treatment equipment through the discharge port to efficiently separate the sludge and sewage. The sewage is recycled after three-stage filtration, reducing water resource waste and providing graded support for the subsequent treatment of sludge.

[0027] Optionally, the cleaning path is divided into areas according to the sludge thickness from thick to thin, and the path planning includes: The divided cleaning paths are marked with underwater markers to facilitate the equipment to operate along the paths; After the cleaning is completed, the path is re-detected by the detection device to confirm whether there are any missed areas; If there are uncleaned areas, start supplementary cleaning directly and record the path coverage. In the actual implementation process, plan the cleaning path according to the measurement results and mark the path with underwater markers; after the cleaning is completed, use the detection device to detect the coverage again, start the supplementary cleaning program to deal with the missed areas, and record the path coverage, optimize the cleaning sequence, reduce path intersections and repeated operations, improve cleaning efficiency, and ensure the thoroughness of the pool bottom cleaning.

[0028] Optionally, the high-pressure water jet device comprises: The pressure range is adjustable from 10 MPa to 50 MPa to adapt to different sludge adhesion strengths; Equipped with rotating nozzles to ensure that the water jets act evenly on the pool bottom; The nozzle is installed on a lifting mechanical arm, and the spray angle and height can be adjusted to adapt to the complex structure of the pool bottom; The anti-clogging function ensures that the equipment can continue to work in a high-concentration sludge environment. In the actual implementation process, the jet pressure range is set to 10-50 MPa, and the angle of the rotating nozzle is adjusted to evenly affect the bottom of the pool; the jet height is flexibly adjusted by the lifting mechanical arm to peel off the thick layer of sludge attached; the anti-clogging function is used to ensure the continuous operation of the equipment, efficiently peel off the thick layer of sludge, and the jet evenly covers the bottom of the pool to avoid equipment interruption due to sludge blockage.

[0029] Optionally, the cleaning device is mounted on a mobile platform, and the mobile platform comprises: Tracked chassis, suitable for complex terrain or different pool bottom structures; Level adjuster to ensure stable operation in uneven pool bottom environment; Anti-skid device, used to maintain the platform's grip in slippery conditions; The platform supports manual operation mode, which is convenient for operators to flexibly control the equipment. In the actual implementation process, the crawler chassis is used to ensure that the equipment adapts to the complex pool bottom terrain; the platform angle is adjusted in the uneven pool bottom environment through the level adjuster; the anti-skid device is used to ensure the grip ability in slippery conditions; the manual operation mode is switched to achieve precise control of the cleaning path and equipment operation, enhance the environmental adaptability of the equipment, improve the stability of equipment operation, and provide support for efficient operation of the equipment.

[0030] In order to verify the practical application effect of a mechanical cleaning method for a sewage sludge pool of the present invention, a systematic experimental study was conducted on its key links and performance. The experiments mainly revolved around the following aspects: the accuracy of the detection device, the sludge cleaning efficiency, the sludge collection and separation effect, the rationality of the cleaning path planning, and the environmental adaptability of the mobile platform. According to the different distribution conditions of sludge thickness (thick layer, middle layer, thin layer), the experiments simulated the complex conditions in the actual operation of the sludge pool respectively, and verified the performance of the high-pressure water jet, mechanical scraper and adsorption device through specific embodiments. At the same time, the separation ability of the sludge collection equipment and the operating stability of the mobile platform of the equipment were investigated. The experimental results are summarized in the following experimental table, which records the experimental conditions, equipment parameters and expected effects in detail, and further demonstrates the application scenarios and operation processes of the method through three typical embodiments. These experiments fully prove the efficiency, adaptability and reliability of the present invention under different sludge thickness and tank conditions: Experimental Project Experimental conditions Experimental parameters Expected Results Detection device performance test Pool depth 2m, water level fluctuation ±0.5m Ultrasonic detection module, detection accuracy ±1mm, grid display of sludge distribution Accurate measurement data and reasonable regional division Thick sludge cleaning efficiency test Sludge thickness ≥150mm, high adhesion strength High-pressure water jet pressure 30MPa, rotating nozzle spray angle adjustable Thick sludge is completely removed without damaging the pool bottom Middle layer sludge cleaning efficiency test Sludge thickness 50-150mm, evenly distributed Hydraulic scraper depth adjustment range 5-20mm, angle adjustable The middle layer of sludge is cleaned evenly to avoid over- or under-cleaning Thin layer sludge cleaning efficiency test Sludge thickness ≤50mm, pool bottom material is smooth The diameter of the flexible suction head of the adsorption device is automatically adjusted (5-10cm), and the vacuum suction is stable The thin layer of sludge is cleaned and there are no scratches on the bottom of the pool Sludge collection and separation testing The moisture content of sludge after adsorption is 80% The solid-liquid separation efficiency of the cyclone separator is ≥95%, the sludge is stored in multiple compartments, and the sewage is reused after three-stage filtration Efficient solid-liquid separation, clear sludge classification, high water resource recycling rate Clean up the path planning and review the test The sludge thickness distribution is complex and the pool bottom shape is irregular Divide the path by thickness, mark underwater markers, and recheck the coverage of the detection device after cleaning Reasonable route planning, cleaning coverage ≥ 95%, no obvious missed areas Mobile platform adaptability test The pool bottom slope is ≤15° and the surface is slippery Tracked chassis, anti-skid device, and level adjuster maintain stable operation of the equipment The platform runs smoothly, adapts to different pool bottom environments, and the equipment is flexible to operate The present invention has experimentally verified the cleaning of different sludge thickness areas through three embodiments, covering the treatment of thick, medium and thin sludge layers, respectively, reflecting the efficiency, adaptability and reliability of the present invention in various scenarios. The following are three implementation columns: Example 1

[0031] A thick sludge cleaning experiment was conducted in a sludge pool. The pool was 2 meters deep, the sludge thickness was ≥150mm, and the adhesion strength was high. The detection device was used to measure the thickness and divide the area into grids. The thick layer area was marked as the priority cleaning area. A high-pressure water jet device was selected, the pressure was set to 30 MPa, and the rotating nozzle was used to evenly spray and peel the sludge. The peeled sludge was transported to the sludge collection equipment through a vacuum adsorption device. After the cleaning was completed, the thick layer area was reviewed using a detection device to confirm that the coverage rate was ≥95%, and a cleaning report was generated. Example 2

[0032] An experiment on cleaning the middle layer sludge was carried out in an industrial sedimentation tank. The sludge thickness was 50-150mm and was evenly distributed. After the detection device divided the cleaning area, a mechanical scraper device was used to clean the middle layer sludge. The depth of the hydraulic scraper was adjusted to 10mm, and the scraper angle was adapted to the sludge adhesion for peeling. The peeled sludge was transmitted to the collection equipment through the adsorption device. After the cleaning was completed, the detection device reviewed the middle layer area, and the cleaning coverage rate reached 98%, with no excessive or insufficient cleaning. Example 3

[0033] A thin layer sludge cleaning experiment was conducted in a sludge treatment plant. The sludge thickness was ≤50mm and the pool bottom material was smooth concrete. After the detection device marked the thin layer area, a flexible adsorption device was used for cleaning. The vacuum suction head diameter was automatically adjusted to 5cm, and the adsorption strength was set to medium to ensure that the pool bottom was not damaged while cleaning the sludge. After the cleaning was completed, the detection device re-scanned, and the cleaning coverage rate reached 97%, and the pool bottom surface was smooth and scratch-free.

[0034] The three examples fully verified the cleaning ability and adaptability of the present invention in different sludge thickness scenarios. Through the precise measurement and area division of the detection device, combined with the hierarchical treatment of high-pressure water jets, mechanical scrapers and flexible adsorption devices, the present invention has achieved significant improvement in efficiency and effect in the sludge cleaning process, while effectively protecting the pool bottom structure and ensuring that the cleaning process is environmentally friendly, safe and comprehensive.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0036] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for mechanically cleaning a sewage sludge pool, characterized in that: The following steps are involved: S1: Use the detection device to measure the thickness of the sludge in the sludge tank; S2: Divide the cleaning area according to the sludge thickness distribution fed back by the detection device; S3: According to the sludge thickness in different areas, one or more of high-pressure water jets, mechanical scrapers or adsorption devices are used for cleaning; S4: Collect the stripped sludge and transport it to the sludge collection equipment through a vacuum adsorption device; S5: After cleaning, recheck the bottom of the sludge pool to ensure there is no residual sludge.

2. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The detection device includes an ultrasonic detection module, a floating bracket and a data recording unit, which are used to measure the thickness of the sludge layer in real time under different water level conditions. The measurement results display the sludge distribution in the form of a grid, providing an accurate basis for subsequent area division.

3. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The cleaning area is divided into thick layer area, middle layer area and thin layer area according to the sludge thickness. Different priorities and cleaning methods are used in each area. The area division results are intuitively marked on the display interface for operators to guide equipment operation.

4. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The thick layer area is preferentially stripped by high-pressure water jets, and the water jet pressure range is adjustable to avoid damage to the pool bottom. The middle layer area is cleaned with a mechanical scraper, and the scraper can adjust the depth and contact angle through the hydraulic system to adapt to different sludge thicknesses. The thin layer area is mainly cleaned carefully using an adsorption device, and the adsorption head has a flexible structure to ensure that there are no scratches on the pool bottom.

5. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The adsorption device includes a vacuum pipe and a flexible suction head. The diameter of the suction head can be automatically adjusted according to the thickness of the sludge to improve the adsorption efficiency. An anti-blocking device is arranged in the vacuum pipe, which can self-clean regularly to prevent high-concentration sludge from blocking the conveying channel.

6. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The review uses the original detection device to rescan to confirm whether there are any uncleaned areas, perform additional cleaning procedures on the residual sludge, and generate a cleaning completion report.

7. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The sludge collection equipment includes a cyclone separator for solid-liquid separation of the adsorbed sludge; Multi-chamber sludge storage tanks are used to store sludge according to its particle size and moisture content; The sludge after solid-liquid separation is transported to subsequent treatment equipment through the discharge port.

8. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The cleaning path is divided into priority areas according to the sludge thickness from thick to thin. The path planning includes: The divided cleaning paths are marked with underwater markers to facilitate the equipment to operate along the paths; After the cleaning is completed, the path is re-detected by the detection device to confirm whether there are any missed areas; If there are uncleaned areas, start supplementary cleaning directly and record the path coverage.

9. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The high-pressure water jet device comprises: The pressure range is adjustable from 10 MPa to 50 MPa to adapt to different sludge adhesion strengths; Equipped with rotating nozzles to ensure that the water jets act evenly on the pool bottom; The nozzle is installed on a lifting mechanical arm, and the spray angle and height can be adjusted to adapt to the complex structure of the pool bottom; The anti-clogging function ensures that the equipment can continue to work in a high-concentration sludge environment.

10. A sewage sludge pool mechanical cleaning method according to claim 1, characterized in that: The cleaning device is installed on a mobile platform, and the mobile platform includes: Tracked chassis, suitable for complex terrain or different pool bottom structures; Level adjuster to ensure stable operation in uneven pool bottom environment; Anti-skid device, used to maintain the platform's grip in slippery conditions; The platform supports manual operation mode, which allows operators to flexibly control the equipment.

Images