A sewage fecal sludge reduction and energy organic solid waste treatment method

Abstract

The present application relates to sewage treatment, fecal sludge treatment and biomass hydrogen technology field, specifically relates to a kind of sewage fecal sludge reduction, energy of organic solid waste treatment device and processing method.The device includes sedimentation tank, pumping assembly, filter screen, scraping strip, backflushing component, cleaning component and sludge collection component, sludge pyrolysis quantum gasification component, by the cooperation of filter screen and helical scraping strip of cylindrical shape, sludge on filter screen can be better scraped, reduce the long-term accumulation of sludge on filter screen, reduce the possibility of additional sludge due to accumulation;The double cleaning effect of backflushing component and cleaning component further improves the cleaning effect of filter screen, sludge collection component can timely concentrate the sludge scraped, prevent sludge from mixing into the sewage of sedimentation tank again, sludge pyrolysis quantum gasification component can gasify the dried sludge into hydrogen-based syngas energy, while greatly reducing the amount of carbonized biochar fertilizer and ceramsite mixture.

Description

Technical Field

[0001] This invention relates to the fields of wastewater treatment technology, organic solid waste resource recycling, and environmentally friendly disposal of sewage and sludge with reduced volume and harmless treatment. Specifically, it relates to an organic solid waste treatment device and method for reducing and converting sewage, sewage, and sludge into energy. Background Technology

[0002] In the field of wastewater treatment, sludge reduction is one of the core requirements for reducing treatment costs and improving treatment efficiency. In traditional wastewater treatment processes, wastewater and sludge are initially separated in sedimentation tanks, and then further removed by filtration using filters to remove suspended impurities and some sludge from the water, thus achieving water purification and initial sludge separation. However, existing treatment devices based on "sedimentation tank + filter" generally have several technical limitations: On the one hand, during long-term filtration, sludge easily adheres to the surface of the filter, causing blockage. Although some devices are equipped with scrapers for cleaning, the cleaning effect of a single scraper is limited, and sludge residue easily remains, leading to a continuous decline in filtration efficiency. Moreover, the residual sludge is prone to solidification over time, which increases the amount of sludge to be treated in subsequent stages. On the other hand, the sludge scraped off by the filter needs to be transferred to subsequent treatment stages through collection components. Existing collection components mostly rely on gravity to achieve sludge falling and transportation, which is prone to stagnation and blockage at the collection port due to the high viscosity and poor flowability of the sludge. This causes sludge to flow back to the sedimentation tank or decompose and spoil within the collection components, which not only affects the continuity of the treatment process but also indirectly increases the total amount of sludge.

[0003] To improve sludge separation, targeted improvement solutions have emerged in related technical fields. For example, a wastewater treatment device for sludge reduction disclosed in Chinese Patent Publication No. CN118388010B uses a compression mechanism. The device utilizes a coaxially rotating shaft and spiral blades inside the compression cylinder, along with a contraction section at the bottom of the compression cylinder and a conical section at the bottom of the spiral blades, to transport the wastewater and sludge mixture to the contraction section. The upward flow of wastewater and the compression effect of the conical section further separate and reduce the sludge volume. While this solution offers certain advantages in the sludge compression and separation stage, it still fails to address key pain points in the existing "sedimentation tank + filter" treatment chain. It doesn't consider the high-efficiency cleaning requirements of the filter, lacks a composite cleaning structure for the filter's inner wall, and cannot reduce sludge residue on the filter at the source. Furthermore, it doesn't optimize the sludge collection and transport connection from the filter to the compression mechanism, leaving a risk of sludge stagnation and blockage during transfer. This prevents the compression mechanism from efficiently handling and processing the sludge. In summary, the existing wastewater treatment devices have technological gaps in high-efficiency filter cleaning and smooth sludge collection and transport, making it difficult to achieve end-to-end optimization from filtration to sludge reduction. There is an urgent need for a wastewater treatment device that integrates high-efficiency filter cleaning, smooth sludge collection and transport, and staged dewatering functions, with all components working collaboratively to reduce sludge residue and accumulation at the source, lower sludge moisture content, and ultimately achieve better sludge reduction. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides an organic solid waste treatment device and method for reducing and converting sewage, fecal matter, and sludge into energy. Through the combination of a cylindrical filter screen and spiral scrapers, the device more comprehensively removes adhering sludge from the filter screen, reducing long-term accumulation and solidification of sludge, and lowering the possibility of additional sludge generation due to accumulation. The dual cleaning effect of the backwashing and cleaning components further enhances the filter screen's cleaning efficiency, preventing filter screen clogging or secondary pollution caused by residual impurities, indirectly reducing the amount of sludge generated in subsequent treatment stages. Simultaneously, the sludge collection component can promptly collect the scraped sludge, preventing it from being re-mixed into the sewage in the sedimentation tank and reducing the increased production caused by repeated sludge treatment.

[0005] To address the problems of existing technologies, this invention provides an organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy, comprising: a sedimentation tank for storing fecal sludge and sewage; a pumping assembly disposed at the top of and connected to the sedimentation tank, the pumping assembly including a water inlet connected to an external water pump, and a cylindrical filter screen disposed on the water inlet; a rotatable scraper bar disposed on the filter screen for scraping off sludge adhering to the filter screen, the scraper bar having a spiral structure; a backwashing assembly connected to the water inlet for introducing water flow into the filter screen to clean the filter screen; a cleaning assembly disposed inside the filter screen for cleaning the inner wall of the filter screen; and a sludge collection assembly disposed below the filter screen and connected to the bottom of the filter screen. The system comprises: a connection for collecting sludge scraped by scrapers and cleaned by the cleaning component, which then flows through the filter mesh to the outside with the backwash water; an electromagnetic pyrolysis component, located downstream of and connected to the sludge collection component, for pyrolyzing the collected sludge under anaerobic conditions to produce a mixed gas containing tar and solid residue; a photoelectric tar gas cracking component, located downstream of and connected to the gas outlet of the electromagnetic pyrolysis component, for photoelectric cracking of the mixed gas containing tar produced by pyrolysis; and a plasma molecular reduction component, located downstream of the photoelectric cracking component, for molecular recombination of the cracked syngas to obtain a combustible syngas mainly composed of hydrogen and supplemented by carbon monoxide.

[0006] Preferably, the cleaning component includes a mounting bracket, a support shaft, and a cleaning element. The mounting bracket is installed inside the filter screen, the support shaft is fixedly connected to the mounting bracket and extends along the axial direction of the filter screen, the support shaft is provided with a spiral slide rail extending around its axis, the cleaning element is sleeved on the support shaft and slides in cooperation with the support shaft, and the inner wall of the cleaning element is provided with a sliding block that matches the spiral slide rail.

[0007] Preferably, the cleaning component is provided with multiple mounting holes, each containing a steel ball and a spring. During the pumping process, the steel ball is dislodged from the mounting hole by suction, thus opening the mounting hole. During backwashing, the spring is compressed by the water pressure, sealing the mounting hole.

[0008] Preferably, an elastic element is provided between the cleaning component and the top of the filter screen, the elastic element being used to drive the cleaning component to reset to its initial position after backflushing cleaning is completed.

[0009] Preferably, the sludge collection assembly includes a bucket-shaped collection port and a conveying channel. The top of the collection port is connected to the bottom of the filter screen, and the conveying channel is connected to the bottom of the bucket-shaped collection port. The conveying channel is provided with a first spiral blade for conveying sludge.

[0010] Preferably, a first extrusion device is provided on the side of the sedimentation tank. The first extrusion device is connected to the conveying channel and extends vertically. The first extrusion device is used to perform preliminary extrusion and dewatering of sludge rich in water. A second extrusion device is provided on the side of the first extrusion device. The second extrusion device is arranged parallel to the first extrusion device and is connected to the first extrusion device. The outlet of the second extrusion device gradually narrows. The top and bottom of the scraper are provided with mounting rings. The mounting rings are rotatably fitted onto the filter screen. A bevel gear ring is fitted on the top mounting ring. A bevel gear meshing with the bevel gear ring is provided on the side of the bevel gear ring. A first rotary drive motor for driving the bevel gear is provided on the sedimentation tank.

[0011] Preferably, the electromagnetic pyrolysis assembly includes: an anaerobic pyrolysis kiln body for containing sludge and providing an anaerobic environment; an electromagnetic heating device disposed outside the anaerobic pyrolysis kiln body for heating the kiln body through electromagnetic induction to achieve pyrolysis of the sludge, and the electromagnetic heating device exerts electromagnetic interference on the material inside the kiln body during the heating process; and a residue treatment device is provided next to the solid residue outlet of the electromagnetic pyrolysis assembly, the residue treatment device being used to cool or separate the solid residue generated by sludge pyrolysis.

[0012] Preferably, the photocatalytic tar gas cracking assembly includes: a gas-liquid separation device for receiving pyrolysis gas generated by the electromagnetic pyrolysis assembly and separating a mixed gas containing tar gas; a photocatalytic reactor connected to the gas-liquid separation device for receiving the tar mixed gas, wherein the photocatalytic reactor is equipped with a photocatalyst and at least one high-energy photocatalytic emitter; the photocatalytic cracking assembly is used to crack the mixed gas containing a large amount of tar gas by photocatalysis and high-energy photocatalytic irradiation; and a plasma molecular reduction assembly for molecular recombination treatment of the cracked syngas to obtain a combustible syngas mainly composed of hydrogen and supplemented by carbon monoxide.

[0013] Preferably, the water pumping assembly has two pumping outlets connected to a pipeline. One outlet is used to pump water from the sedimentation tank, and the other outlet is connected to the backwash assembly. Both pipelines are equipped with solenoid valves for controlling the on / off state.

[0014] A wastewater treatment method, applied to the aforementioned organic solid waste treatment device, includes the following steps: S1. Sludge and wastewater are introduced into a sedimentation tank for storage.

[0015] S2. Water is drawn from the sedimentation tank through the water inlet of the pumping assembly under the drive of an external water pump, and the water is filtered through the filter screen at the water inlet.

[0016] S3a. In the pumping filtration state, drive the spiral scraper on the filter screen to rotate to scrape off the sludge attached to the outer surface of the filter screen.

[0017] S3b. When switching to backwash cleaning mode, water pumping and filtration stop. Backwash water is introduced into the filter screen through the backwash assembly. Under the pressure of the backwash water, the cleaning assembly cleans the inner wall of the filter screen, and the sludge on the inner wall is carried to the outside through the filter screen mesh by the backwash water. The spiral scraper enhances the cleaning effect of the filter screen. S3c. The sludge collected by the spiral scraper and the sludge that has passed through the filter screen mesh to the outside is collected by the sludge collection assembly located below the filter screen.

[0018] S4. The collected sludge is introduced into an anaerobic pyrolysis kiln. The kiln is heated by an electromagnetic heating device, and the sludge is pyrolyzed under anaerobic conditions to produce a mixed gas containing tar gas and solid residue.

[0019] S5. During the electromagnetic heating process, electromagnetic waves are used to electromagnetically intervene in the sludge material inside the kiln.

[0020] S6. Perform gas-liquid separation on the gas generated by pyrolysis to separate the mixed gas containing tar gas, and introduce the mixed gas into the photonic quantum pyrolysis component.

[0021] S7. In the photonic quantum pyrolysis component, light of a specific wavelength is emitted by a high-energy photonic quantum emitter. In conjunction with photocatalysis, the mixed gas is pyrolyzed and then introduced into the plasma component for molecular recombination. This achieves the pyrolysis and purification of tar gas in the mixed gas and the molecular recombination of the mixed gas, thereby obtaining a high-calorific-value regenerated syngas with hydrogen as the main component and carbon monoxide as the auxiliary component.

[0022] S8. Perform solid-liquid separation or cooling on the solid residue produced by pyrolysis, and collect the separated residue.

[0023] The advantages of this invention compared to the prior art are: 1. This invention, through the combination of a cylindrical filter screen and a spiral scraper, can more comprehensively remove the attached sludge from the filter screen, reducing the long-term accumulation and solidification of sludge and lowering the possibility of additional sludge formation due to accumulation. The dual cleaning effect of the backwashing component and the cleaning component further enhances the cleaning effect of the filter screen, avoiding filter screen clogging or secondary pollution caused by impurities, and indirectly reducing the amount of sludge generated in subsequent treatment stages. At the same time, the sludge collection component can collect the scraped sludge in a timely manner, preventing sludge from being mixed back into the wastewater in the sedimentation tank, reducing the problem of increased production caused by repeated sludge treatment. The overall structure, through the coordinated work of each component, effectively achieves the goal of reducing sludge production while treating wastewater. Moreover, the functions of each part of the device are clearly defined and closely coordinated, ensuring a stable and efficient wastewater treatment process.

[0024] 2. This invention transforms the axial movement of the cleaning component into a composite motion of axial and circumferential directions through the cooperation of a spiral slide rail and a sliding block. The support shaft is fixed by a mounting bracket, ensuring the stability of the movement process and preventing incomplete cleaning caused by the shaking of the cleaning component. The sliding connection of the cleaning component reduces frictional wear between parts and extends the service life of the components. At the same time, the composite motion can more efficiently remove sludge from the inner wall of the filter screen, reduce residue, and prevent sludge from adhering and solidifying for a long time to form new pollution, thereby helping to improve the filtration efficiency of the filter screen and further reducing sludge production in conjunction with the overall function of the device.

[0025] 3. The elastic cooperation between the steel ball and the spring in this invention enables automatic switching between the open and closed states of the mounting hole without the need for additional control components, adapting to both pumping and backflushing conditions. During pumping, it ensures smooth water flow and prevents the cleaning component from obstructing the filter; during backflushing, it reliably seals the channel, ensuring that the water flow thrust is concentrated on the cleaning component, allowing it to smoothly complete its compound movement to clean the filter screen. Simultaneously, the close-fitting sealing of the steel ball and mounting hole reduces water leakage and improves backflushing efficiency, while the elastic return function of the spring ensures sensitive response of the steel ball under different operating conditions. The overall structure is simple and highly reliable, reducing incomplete cleaning caused by component failure, indirectly reducing sludge residue and accumulation on the filter screen, and assisting the lifting device in reducing sludge production. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts them into energy.

[0027] Figure 2 This is a top view of an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts them into energy.

[0028] Figure 3 This is a cross-sectional structural diagram of an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts them into energy.

[0029] Figure 4 This is a cross-sectional three-dimensional structural diagram of an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts them into energy.

[0030] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0031] Figure 6 This is a three-dimensional structural diagram of a sludge collection component in an organic solid waste treatment device that reduces the volume of sewage, fecal sludge, and converts it into energy. Figure 1 .

[0032] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0033] Figure 8 This is an exploded view of the filter screen and scraper in an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts it into energy.

[0034] Figure 9 This is an exploded view of the filter screen and cleaning components in an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts it into energy.

[0035] Figure 10 This is a three-dimensional structural diagram of a sludge collection component in an organic solid waste treatment device that reduces the volume of sewage, fecal sludge, and converts it into energy. Figure 2 .

[0036] Figure 11 yes Figure 10 Enlarged view of point C in the middle.

[0037] Figure 12 This is a schematic diagram of the three-dimensional structure of a filter screen in an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts it into energy.

[0038] Figure 13 This is a three-dimensional structural diagram of the pumping and backflushing components in an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts them into energy.

[0039] Figure 14 This is a schematic diagram of a process for treating organic solid waste that involves reducing the volume of sewage, feces, and sludge and converting it into energy.

[0040] Figure 15 This is a three-dimensional structural diagram of an electromagnetic pyrolysis component in an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts them into energy.

[0041] Figure 16 This is a partially cutaway structural diagram of an electromagnetic pyrolysis component in an organic solid waste treatment device that reduces the volume of sewage, feces, and sludge and converts it into energy.

[0042] The diagram is labeled as follows: 1. Sedimentation tank; 11. First rotary drive motor; 12. Bevel gear; 2. Pumping assembly; 21. Pump outlet; 22. Filter screen; 221. Scraper; 222. Mounting ring; 223. Bevel gear ring; 23. Cleaning assembly; 231. Mounting bracket; 232. Support shaft; 2321. Slide rail; 233. Cleaning component; 2331. Sliding block; 2332. Mounting hole; 2333. Steel ball; 2334. Spring; 234. Elastic component; 24. Pipeline; 25. Solenoid valve; 3. Backflushing assembly. Components; 4. Sludge collection assembly; 41. Conveying channel; 411. Collection port; 412. First spiral blade; 42. First extrusion equipment; 43. Second extrusion equipment; 5. Electromagnetic pyrolysis assembly; 6. Photocatalytic tar gas cracking assembly; 5. Electromagnetic pyrolysis assembly; 51. Shell; 52. Feed hopper; 53. Pyrolysis cylinder; 54. Spiral conveyor; 55. Electromagnetic heating section; 56. Electromagnetic heating power supply; 57. Pyrolysis gas outlet; 58. Solid residue outlet; 59. Drive assembly; 6. Photocatalytic cracking assembly. Detailed Implementation

[0043] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0044] like Figures 1 to 7 , Figure 10 and Figure 14 The following describes an organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy. The device comprises: a sedimentation tank 1 for storing sludge and sewage; a pumping assembly 2, located on top of and connected to the sedimentation tank 1, the pumping assembly 2 including a water inlet 21 connected to an external water pump, and a cylindrical filter screen 22 on the water inlet 21; a rotatable scraper 221 on the filter screen 22 for scraping off sludge adhering to the filter screen 22, the scraper 221 having a spiral structure; a backwashing assembly 3, connected to the water inlet 21, for introducing water into the filter screen 22 to clean it; and a cleaning assembly 23. The filter screen 22 is placed inside the filter screen 22 and is used to clean the inner wall of the filter screen 22. The sludge collection component 4 is located below the filter screen 22 and connected to the bottom of the filter screen 22. It is used to collect the sludge scraped off by the scraper 221 and the cleaning component 23. The electromagnetic pyrolysis component 5 is located downstream of the sludge collection component and is connected to it. It is used to pyrolyze the collected sludge under anaerobic conditions to produce a mixed gas containing tar gas and solid residue. The photoelectric tar gas cracking component 6 is located downstream of the gas outlet of the electromagnetic pyrolysis component 5 and is connected to it. It is used to perform photoelectric cracking treatment on the mixed gas containing tar gas produced by pyrolysis.

[0045] When the wastewater treatment device is in operation, the sedimentation tank 1 first stores the sludge and wastewater to be treated, providing a stable material storage space for subsequent treatment. The water pumping assembly 2, located at the top of the sedimentation tank 1, is driven by an external water pump to draw water from the sedimentation tank 1 through the water inlet 21. The cylindrical filter screen 22 at the water inlet 21 simultaneously filters the water, intercepting impurities and some sludge in the water, so that the filtered water can enter the subsequent process.

[0046] In the normal water pumping filtration state of the filter screen 22, the spiral scraper 221 on the filter screen 22 rotates to continuously scrape off the sludge adhering to the outer surface of the filter screen 22, preventing sludge accumulation from affecting filtration efficiency. When switching to backwash cleaning state according to the cleaning needs of the filter screen, the system stops water pumping filtration, the backwash component 3 connects to the water inlet 21 and introduces backwash water into the filter screen 22. Under the pressure of the backwash water flow from the inside to the outside, the cleaning component 23 inside the filter screen 22 cleans the inner wall of the filter screen 22, and the cleaned inner wall sludge is discharged to the outside of the filter screen 22 through the mesh of the filter screen 22 with the backwash water flow. Finally, the external sludge scraped off by the external scraper 221, as well as the internal sludge that passes through the mesh of the filter screen 22 to the outside in the backwash state, all fall into the sludge collection component 4 located below the filter screen 22 and connected to the bottom of the filter screen 22, completing the centralized collection of sludge. Because the internal space of the filter screen 22 is physically isolated from the sludge collection component 4 below, the effectiveness of the pumping and filtration stage is ensured. The cylindrical filter screen 22, in conjunction with the spiral scraper 221, more comprehensively removes the attached sludge from the filter screen 22, reducing long-term accumulation and solidification of sludge and lowering the possibility of additional sludge buildup. The dual cleaning action of the backwash component 3 and the cleaning component 23 further enhances the cleaning effect of the filter screen 22, preventing clogging or secondary pollution caused by residual impurities, indirectly reducing the amount of sludge generated in subsequent treatment stages. Simultaneously, the sludge collection component 4 can promptly collect the scraped sludge, preventing it from re-mixing into the wastewater in the sedimentation tank 1, reducing the increased production caused by repeated sludge treatment. Through the coordinated work of all components, the overall structure effectively achieves the goal of reducing sludge production while treating wastewater. Furthermore, the clear functions and close cooperation of each part of the device ensure a stable and efficient wastewater treatment process.

[0047] like Figures 1 to 5 , Figures 8 to 12As shown: The cleaning component 23 includes a mounting bracket 231, a support shaft 232, and a cleaning component 233. The mounting bracket 231 is located inside the filter screen 22. The support shaft 232 is fixedly connected to the mounting bracket 231 and extends along the axial direction of the filter screen 22. The support shaft 232 is provided with a spiral slide rail 2321 extending around its axis. The cleaning component 233 is sleeved on the support shaft 232 and slides in cooperation with the support shaft 232. The inner wall of the cleaning component 233 is provided with a sliding block 2331 that matches the spiral slide rail 2321.

[0048] When the cleaning assembly 23 is in operation, the mounting bracket 231 provides stable support for the entire cleaning assembly 23, so that the support shaft 232 is firmly arranged along the axial direction of the filter screen 22.

[0049] When the cleaning component 233 moves along the axis of the support shaft 232 under force, the sliding block 2331 on the inner wall of the cleaning component 233 cooperates with the spiral slide rail 2321 on the support shaft 232. As the sliding block 2331 moves along the slide rail 2321, the guiding effect of the spiral slide rail 2321 causes the cleaning component 233 to rotate synchronously around the support shaft 232. This allows the cleaning component 233 to move along the axis of the filter screen 22 while also rotating circumferentially around the axis of the support shaft 232. This combined motion allows the cleaning component 233 to fully cover all areas of the inner wall of the filter screen 22, effectively scraping or cleaning the attached sludge.

[0050] The axial movement of the cleaning component 233 is transformed into a composite motion of axial and circumferential directions through the cooperation of the spiral slide rail 2321 and the sliding block 2331. The support shaft 232 is fixed by the mounting bracket 231, ensuring the stability of the movement process and avoiding incomplete cleaning caused by the shaking of the cleaning component 233. The sliding connection of the cleaning component 233 reduces frictional loss between components and extends the service life of the components. At the same time, the composite motion can more efficiently remove sludge from the inner wall of the filter screen 22, reduce residue, and prevent sludge from adhering and solidifying for a long time to form new pollution, thereby helping to improve the filtration efficiency of the filter screen 22 and further reducing sludge production in conjunction with the overall function of the device.

[0051] like Figures 1 to 5 , Figures 8 to 12 As shown: The cleaning component 233 is provided with multiple mounting holes 2332. Each mounting hole 2332 is provided with a steel ball 2333 and a spring 2334. During the water pumping process, the steel ball 2333 is dislodged from the mounting hole 2332 under the action of suction, so that the mounting hole 2332 is in the open state. During backwashing cleaning, the spring 2334 is compressed under the action of water flow pressure and the mounting hole 2332 is blocked.

[0052] When the mounting hole 2332, steel ball 2333, and spring 2334 on the cleaning component 233 work together, during the water pumping and filtration stage of the device, the suction force generated by the pumping acts on the steel ball 2333, causing the steel ball 2333 to overcome the elastic force of the spring 2334 and move upward and disengage from the mounting hole 2332. At this time, the mounting hole 2332 is in the open state, and the water in the sedimentation tank 1 can smoothly enter the water inlet 21 through the mounting hole 2332. After being filtered by the filter screen 22, the normal water pumping process is completed, ensuring that the filtration process is not obstructed by the cleaning component 233.

[0053] When the device switches to the backwash cleaning stage, the water flow introduced into the backwash component 3 exerts downward pressure on the steel ball 2333. This pressure pushes the steel ball 2333 to compress the spring 2334 until the steel ball 2333 is completely attached to the mounting hole 2332 and blocks the mounting hole 2332. At this time, the water flow cannot pass through the mounting hole 2332 and instead forms an axial thrust on the cleaning component 233, driving the cleaning component 233 to move along the support shaft 232. The rotation of the cleaning component 233 is achieved by the action of the spiral slide rail 2321 on the support shaft 232 and the sliding block 2331 on the cleaning component 233. The cleaning of the inner wall of the filter screen 22 is completed by the rotation of the cleaning component 233 and its sliding along the axis of the filter cartridge.

[0054] This structure, through the elastic cooperation of steel balls 2333 and springs 2334, enables automatic switching between the open and closed states of the mounting hole 2332 without additional control components, adapting to both pumping and backflushing conditions. During pumping, it ensures smooth water flow, preventing the cleaning element 233 from obstructing filtration; during backflushing, it reliably seals the channel, ensuring the water flow thrust is concentrated on the cleaning element 233, allowing it to smoothly complete its compound motion to clean the filter screen 22. Simultaneously, the close-fitting sealing of the steel balls 2333 and mounting hole 2332 reduces water leakage and improves backflushing efficiency, while the elastic reset function of the springs 2334 ensures sensitive response of the steel balls 2333 under different operating conditions. The overall structure is simple and highly reliable, reducing incomplete cleaning caused by component failure, indirectly reducing sludge residue and accumulation on the filter screen 22, and assisting the lifting device in reducing sludge production.

[0055] like Figures 1 to 5 , Figures 8 to 12 As shown: An elastic element 234 is provided between the cleaning component 233 and the top of the filter screen 22. The elastic element 234 is used to drive the cleaning component 233 to reset to the initial position after the backwash cleaning is completed.

[0056] The elastic element 234 between the cleaning component 233 and the top of the filter screen 22 plays a role in accordance with the operating conditions during the operation of the device. When pumping water, the cleaning component 233 moves towards the top of the filter screen 22 under the action of suction, and the elastic element 234 is stretched or compressed and stores elastic potential energy. During backwashing, the cleaning component 233 moves along the support shaft 232 under the action of water flow thrust, and the elastic element 234 further deforms to adapt to the displacement of the cleaning component 233. When the backwashing ends and the water flow pressure disappears, the elastic element 234 releases the stored potential energy, driving the cleaning component 233 to move in the opposite direction along the support shaft 232, and finally reset to the initial position.

[0057] This flexible reset structure requires no additional driving components, allowing the cleaning component 233 to automatically return to a position that does not affect water pumping and filtration after backflushing. This ensures that the cleaning component 233 will not obstruct the water flow path during the next pumping, guaranteeing the smoothness of the filtration process. At the same time, the stable reset function avoids cleaning dead zones or interference with other components caused by the positional displacement of the cleaning component 233, improving the reliability of the device operation and indirectly reducing sludge residue and accumulation caused by abnormal position of the cleaning component 233, thus helping to enhance the device's effect of reducing sludge production.

[0058] like Figures 1 to 4 , Figure 6 , Figure 7 and Figure 10 As shown: The sludge collection assembly 4 includes a bucket-shaped collection port 411 and a conveying channel 41. The top of the collection port 411 is connected to the bottom of the filter screen 22, and the conveying channel 41 is connected to the bottom of the bucket-shaped collection port 411. The conveying channel 41 is provided with a first spiral blade 412 for conveying sludge.

[0059] When the sludge collection component 4 is working, the sludge scraped off from the filter screen 22 by the scraper 221 and the cleaning component 23 falls under the action of gravity. The bucket-shaped collection port 411, due to its open structure, can efficiently receive the falling sludge, preventing the sludge from scattering into the sedimentation tank 1 and causing secondary pollution. The collected sludge enters the bottom conveying channel 41 under the push of gravity and subsequent sludge. When the first spiral blade 412 in the conveying channel 41 rotates, the sludge is continuously conveyed forward along the channel by the thrust of the spiral surface, realizing the directional transfer of sludge.

[0060] The structure of the bucket-shaped collection port 411 expands the collection range, ensuring that sludge can be concentrated into the collection component, reducing sludge backflow caused by untimely collection; the conveying channel 41, together with the first spiral blade 412, can continuously and stably transport sludge, avoiding sludge accumulation and blockage in the collection component. At the same time, the pushing action of the spiral blade can initially squeeze the sludge, separate some water, reduce the water content of the sludge in subsequent treatment, improve the sludge collection efficiency, reduce the residence time of sludge in the device, avoid putrefaction or secondary pollution caused by long-term residence, and further assist the device in achieving the goal of reducing sludge production.

[0061] like Figures 1 to 4 , Figure 6 and Figure 10 As shown: A first extrusion device 42 is provided on the side of the sedimentation tank 1. The first extrusion device 42 is connected to the conveying channel 41 and extends in the vertical direction. The first extrusion device 42 is used to perform preliminary extrusion and dewatering of sludge rich in water.

[0062] When the first extrusion device 42 is working, the water-rich sludge, conveyed through the conveying channel 41, enters the interior of the vertically extending first extrusion device 42. Under the extrusion force, some of the water in the sludge is separated out. The water can flow down the inner wall of the vertically extending first extrusion device 42 and return to the sedimentation tank 1 or a designated drainage path, while the sludge that has undergone preliminary dewatering continues to move under the extrusion force, completing the preliminary dewatering process. The first extrusion device 42 is directly connected to the conveying channel 41, ensuring a continuous process from sludge collection and transportation to preliminary dewatering, reducing sludge spillage and secondary pollution during transfer. The vertical extension of the first extrusion device 42 allows gravity to assist in water separation, making it easier to discharge the extruded water and improving the efficiency of preliminary dewatering. The preliminary extrusion of the sludge can effectively reduce its moisture content, reducing the total amount of sludge in subsequent treatment stages, while avoiding the putrefaction or volume expansion caused by long-term retention of high-moisture sludge, further assisting the device in achieving the goal of reducing sludge production. Moreover, the sludge after preliminary dewatering is easier to process in subsequent stages, improving the efficiency of the overall treatment process.

[0063] like Figures 1 to 4 , Figure 6 and Figure 10 As shown: A second extrusion device 43 is provided on the side of the first extrusion device 42. The second extrusion device 43 is arranged parallel to the first extrusion device 42 and is connected to the first extrusion device 42. The outlet of the second extrusion device 43 gradually narrows.

[0064] When the second extrusion device 43 is working, the sludge that has been initially dewatered by the first extrusion device 42 enters the interior of the second extrusion device 43 along the path of the first extrusion device 42. As the outlet of the second extrusion device 43 gradually narrows, the extrusion space inside the device continuously shrinks as the sludge moves toward the outlet, and the extrusion pressure on the sludge gradually increases, thereby further separating and discharging the residual water in the sludge. Finally, the sludge is discharged from the second extrusion device 43 through the narrowed outlet, completing the secondary dewatering treatment.

[0065] In this structure, the second extrusion device 43 is arranged in parallel and connected to the first extrusion device 42, which ensures that the sludge after preliminary dewatering can smoothly enter the secondary dewatering stage, avoiding the sludge from scattering or lingering during the transfer process and ensuring the continuity of the dewatering process. The gradually narrowing outlet can naturally enhance the extrusion pressure through spatial compression, achieving deep dewatering without the need for additional drive components, simplifying the equipment structure while improving the dewatering effect. Secondary dewatering can further reduce the sludge moisture content, reduce the volume and total amount of the final sludge, and more efficiently assist the device in achieving the goal of reducing sludge production. Moreover, the more thoroughly dewatered sludge is easier to dispose of afterward, reducing the overall cost and difficulty of wastewater treatment.

[0066] like Figures 1 to 5 8 to Figure 12 As shown: The top and bottom of the scraper 221 are provided with mounting rings 222. The mounting rings 222 are rotatably sleeved on the filter screen 22. The top mounting ring 222 is fitted with a bevel gear ring 223. A bevel gear 12 that meshes with the bevel gear ring 223 is provided on the side of the bevel gear ring 223. The sedimentation tank 1 is provided with a first rotary drive motor 11 for driving the bevel gear 12.

[0067] After the first rotary drive motor 11 is started, the output shaft of the first rotary drive motor 11 drives the bevel gear 12 to rotate. Since the bevel gear 12 meshes with the bevel gear ring 223 on the mounting ring 222 at the top of the scraper 221, the rotation of the bevel gear 12 will be transmitted to the bevel gear ring 223, and then drive the entire spiral scraper 221 to rotate around the axis of the filter screen 22 through the mounting ring 222 at the top. The mounting ring 222 at the bottom rotates synchronously with the scraper 221 and provides stable support for it.

[0068] This transmission structure transmits power through the meshing of bevel gear 12 and bevel gear ring 223, which can adapt to the spatial layout between the scraper 221 and the drive motor, ensuring efficient power transmission. The top and bottom of the spiral scraper 221 are positioned by mounting rings 222, which can enhance the stability of the scraper 221 during rotation and avoid incomplete scraping or excessive friction with the filter screen 22 due to shaking. At the same time, stable rotation can make the spiral scraper 221 evenly adhere to the surface of the filter screen 22, thoroughly scraping off the attached sludge, reducing the residue and accumulation of sludge on the filter screen 22, thereby helping to reduce the sludge production in subsequent treatment stages. Moreover, the gear transmission has high reliability, which can extend the service life of the device and ensure long-term stable operation.

[0069] A sludge-dispensing plate is fixedly mounted on the mounting ring 222 at the bottom of the scraper 221. The sludge-dispensing plate is fitted onto the bucket-shaped collection port 411 of the sludge collection assembly 4. When the spiral scraper 221 rotates, the bottom mounting ring 222 drives the sludge-dispensing plate to rotate synchronously. The sludge-dispensing plate is used to push the sludge in the bucket-shaped collection port 411 into the conveying channel 41. The rotational power of the scraper 221 synchronously drives the sludge-dispensing plate, eliminating the need for an additional drive source, simplifying the device structure, and reducing energy consumption and the probability of failure. The thrust of the sludge-dispensing plate can completely solve the problem of sludge retention and blockage in the bucket-shaped collection port 411, ensuring a continuous process from scraping, collection to conveying, and reducing spoilage or volume expansion caused by long-term sludge retention. At the same time, during the process of pushing the sludge into the channel, the sludge-dispensing plate can also produce a preliminary squeezing and shaping effect on the sludge, assisting in the separation of some free water, reducing the load on the subsequent squeezing and dewatering stage, and further helping the device achieve the goal of reducing the final sludge production.

[0070] like Figures 1 to 6 and Figure 13 As shown: The water inlet 21 of the water pumping assembly 2 is divided into two paths through the pipe 24. One path is used to pump water from the sedimentation tank 1, and the other path is connected to the backwash assembly 3. Both pipes 24 are equipped with solenoid valves 25 for controlling the on and off states.

[0071] The water intake 21 of the pumping assembly 2 is divided into two paths through the pipe 24, and both paths are equipped with solenoid valves 25. During normal sewage treatment, the solenoid valve 25 on the pipe 24 that draws water from the sedimentation tank 1 is open, and the solenoid valve 25 on the pipe 24 connected to the backwash assembly 3 is closed. An external water pump draws water from the sedimentation tank 1 through the intake 21 and the open pipe 24. After being filtered by the cylindrical filter screen 22, the water enters the subsequent treatment process. When it is necessary to backwash the filter screen 22, the solenoid valve 25 on the pipe 24 that draws water is closed, and the solenoid valve 25 on the pipe 24 connected to the backwash assembly 3 is opened. The water flow of the backwash assembly 3 enters the intake 21 through the pipe 24 and then flows into the filter screen 22 to achieve backwash cleaning.

[0072] The solenoid valves 25 of the two pipelines 24 are independently controlled to open and close, and can flexibly switch between the two working states of filtration and backwashing according to actual needs. This ensures that the water extraction during filtration is not affected by the backwash pipeline, and that the water flow during backwashing can be concentrated into the filter screen 22 to improve the cleaning effect. At the same time, it avoids pollution or a decrease in filtration efficiency caused by the mixing of backwash water flow and the water to be filtered. The orderly switching between the two functions is achieved through simple valve control, which improves the stability and ease of operation of the device and reduces the problem of secondary sludge generation or incomplete cleaning of the filter screen 22 caused by improper function switching.

[0073] like Figure 14As shown: After pretreatment by the dewatering component, the sludge enters the electromagnetic pyrolysis component 5. The moisture content of the sludge entering the pyrolysis section is preferably controlled below 40%, and more preferably between 30% and 40%, to improve the stability of subsequent pyrolysis and reduce the gasification load. The photoelectric quantum tar gas cracking component 6 and the plasma molecular reduction component both treat gas-phase cracking products and do not directly perform dielectric heating treatment on the wet sludge body. The electromagnetic pyrolysis component 5 includes: an anaerobic pyrolysis kiln body for containing sludge and providing an anaerobic environment; and an electromagnetic heating device, located outside the anaerobic pyrolysis kiln body, for heating the kiln body through electromagnetic induction to achieve sludge pyrolysis. The electromagnetic heating device also exerts electromagnetic interference on the material inside the kiln body during the heating process.

[0074] A residue treatment device is provided beside the solid residue outlet of the electromagnetic pyrolysis component 5. This residue treatment device is used to cool and / or separate the solid residue generated from sludge pyrolysis. For example... Figure 15 and Figure 16 As shown, the electromagnetic pyrolysis assembly 5 includes a housing 51, a feed hopper 52, a pyrolysis cylinder 53 disposed within the housing 51, a screw conveyor 54 disposed within the pyrolysis cylinder 53, an electromagnetic heating section 55 disposed on the outer periphery of the pyrolysis cylinder 53, an electromagnetic heating power supply 56 electrically connected to the electromagnetic heating section 55, a pyrolysis gas outlet 57, a solid residue outlet 58, and a drive assembly 59 for driving the screw conveyor 54 to rotate.

[0075] The feed hopper 52 is connected to the feed end of the pyrolysis cylinder 53 via a feed sealing valve. The drive assembly 59 drives the screw conveyor 54 to rotate, causing the dewatered sludge to move along the pyrolysis cylinder 53 from the feed end to the discharge end. The electromagnetic heating section 55 includes an induction coil arranged around the pyrolysis cylinder 53. The electromagnetic heating power supply 56 provides alternating current to the induction coil, causing the heated layer of the pyrolysis cylinder 53 or the magnetically conductive heated body disposed therein to generate heat, thereby heating the moving sludge under anaerobic or oxygen-limited conditions.

[0076] The pyrolysis gas mixture generated from sludge pyrolysis is fed into the gas phase pretreatment component through pyrolysis gas outlet 57, and the resulting solid residue is discharged into the solid residue treatment equipment through solid residue outlet 58 and slag discharge sealing valve. The feed sealing valve and slag discharge sealing valve are used to reduce the entry of external air into the pyrolysis cylinder 53.

[0077] The pyrolysis parameters are as follows: the operating temperature of the anaerobic pyrolysis kiln is preferably between 480℃ and 530℃. The kiln body is made of heat-resistant, non-magnetic materials such as stainless steel or high-nickel alloy. The electromagnetic heating device adopts medium-frequency induction heating technology, with a preferred operating frequency of 10kHz to 50kHz, providing a heating power of 10kW to 50kW.

[0078] During pyrolysis, the electromagnetic field not only provides heat, but its alternating magnetic field can also cause residual water molecules and polar organic molecules in the sludge to undergo dipole reversal. This microwave / radio frequency effect helps to break down macromolecules and increase tar yield. At the same time, the instantaneous hot spots and micro-plasma effects generated by electromagnetic intervention have a physical / chemical activation effect on the solid residues produced by pyrolysis, significantly increasing the specific surface area of ​​the residues and enhancing their subsequent utilization value.

[0079] The implementation method of the photoluminescent tar gas cracking component 6 is as follows: In this embodiment, the gas-liquid separation device adopts a multi-stage condensation and dust removal structure to cool the mixed gas output from the electromagnetic pyrolysis component to approximately 30°C and remove liquid tar and dust, obtaining a mixed gas mainly containing H2, CO, CH4, a small amount of CO2, and uncracked hydrocarbons. The photoluminescent reactor can adopt a temperature-resistant reaction chamber, the inner wall of which is coated with a photocatalyst, or a honeycomb packing, granular packing, or tubular support loaded with a photocatalyst can be set in the reaction chamber to increase the contact area between the gas-phase mixed gas and the photocatalyst. The photocatalyst is preferably an N-doped TiO2 photocatalyst or a ZnS composite nanophotocatalyst. The high-energy photoluminescent emitter preferably includes a 254nm UVC main light source and a 365nm UVA auxiliary light source, both arranged along the axial or circumferential direction of the reactor to ensure continuous irradiation of the gas-phase mixed gas flowing through the reactor. In a preferred embodiment, the surface luminous intensity corresponding to the 254nm light source is approximately 1.5mW / cm², and the surface luminous intensity corresponding to the 365nm light source is approximately 0.084mW / cm². The residence time of the gas-phase mixture in the photocatalytic quantum reactor is preferably 28s-1.9min, and the light energy dose per unit volume is preferably greater than 50J / L, more preferably greater than 60J / L. Under the combined irradiation of UVC and UVA, the photocatalyst is excited to generate electron-hole pairs and active free radicals, thereby promoting bond breaking and cracking of residual tar, methane, and other uncracked hydrocarbons. Simultaneously, some intermediate products can undergo photo-reforming reactions with water vapor and carbon dioxide to further increase the content of H₂ and CO and reduce the residual tar content.

[0080] The plasma molecular reduction assembly is implemented as follows: In this embodiment, the plasma molecular reduction assembly is preferably a dielectric barrier discharge plasma reforming assembly, including a coaxially arranged ceramic dielectric tube, an inner high-voltage electrode, and an outer grounding electrode. The inner high-voltage electrode is preferably located at the center of the reactor, and the outer grounding electrode is preferably wrapped around the outside of the ceramic dielectric tube, forming a discharge gap between them. The outlet of the photonic tar gas cracking assembly is connected to the inlet of the plasma molecular reduction assembly via a heat-resistant and insulated pipe. If necessary, a flow stabilizing cavity, a secondary demisting unit, or a secondary dust removal unit can be set between them to reduce the impact of droplet entrainment and pulsating flow on discharge stability. The plasma molecular reduction assembly is preferably driven by a nanosecond pulse high-voltage power supply, with a pulse peak voltage of approximately 29kV and a repetition frequency preferably of 50Hz-3.0kHz. In another optional embodiment, an AC DBD operating condition of 20kHz level can also be used, with an input power of approximately 60-130W. The residence time of the cracked gas in the discharge zone is preferably 3.9s, or configured to be on the order of engineering parameters of approximately 0.22min depending on the processing flow rate and the effective volume of the reactor. During the discharge process, high-energy electrons collide with molecules in the pyrolysis gas, generating active groups such as O, H, and OH. This promotes the cracking, partial oxidation, steam reforming, and / or dry reforming reactions of residual tar, aromatic hydrocarbons, methane, and other components, thereby further increasing the volume fraction of H2 and CO in the combustible syngas. Since this plasma assembly processes a gas-phase mixture after gas-liquid separation and photoquantum cracking, its reforming efficiency is mainly affected by the gas phase composition, flow rate, residence time, and discharge parameters, and not directly depends on the dielectric constant of the original wet sludge. Figures 1 to 7 , Figure 10 and Figure 14 As shown: A wastewater treatment method, applied to the above-mentioned organic solid waste treatment device, includes the following steps: S1. Sludge and wastewater are introduced into sedimentation tank 1 for storage.

[0081] S2. Water is drawn from the sedimentation tank 1 through the water inlet 21 of the water pumping assembly 2 under the drive of an external water pump, and the water is filtered through the filter screen 22 at the water inlet 21.

[0082] S3a. In the water pumping and filtration state, the spiral scraper 221 on the filter screen 22 is driven to rotate to scrape off the sludge attached to the outer surface of the filter screen 22.

[0083] S3b. When switching to the backwash cleaning state, the water pumping filtration is stopped, and backwash water is introduced into the filter screen 22 through the backwash component 3. Under the pressure of the backwash water, the cleaning component 23 cleans the inner wall of the filter screen 22, and the sludge on the inner wall passes through the mesh of the filter screen 22 to the outside with the backwash water. The spiral scraper 221 enhances the cleaning effect of the filter screen 22.

[0084] S3c. The sludge collected by the sludge collection assembly 4 located below the filter screen 22 is used to collect the sludge scraped by the spiral scraper 221 and the sludge that has passed through the mesh of the filter screen 22 to the outside. S4. The collected sludge is introduced into the anaerobic pyrolysis kiln, and the kiln is heated by an electromagnetic heating device to pyrolyze the sludge under anaerobic conditions, producing a mixed gas containing tar gas and solid residue.

[0085] S5. During the electromagnetic heating process, electromagnetic waves are used to electromagnetically intervene in the sludge material inside the kiln.

[0086] S6. Perform gas-liquid separation on the gas generated by pyrolysis to separate the mixed gas containing tar gas, and introduce the mixed gas into the photonic quantum pyrolysis component.

[0087] S7. In the photo-quantum pyrolysis component, light of a specific wavelength is emitted by a high-energy photo-quantum emitter, which, in conjunction with photocatalysis, pyrolyzes the mixed gas, thereby achieving the pyrolysis and purification of tar gas in the mixed gas and the recombination of mixed gas molecules to obtain high-calorific-value regenerated syngas.

[0088] S8. Perform solid-liquid separation and / or cooling on the solid residue produced by pyrolysis, and collect the separated residue.

[0089] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. An organic solid waste treatment device for reducing and converting sewage, fecal matter, and sludge into energy, characterized in that, include: Sedimentation tanks are used to store fecal sludge and sewage; A water pumping assembly is installed on top of and connected to the sedimentation tank. The water pumping assembly includes a water inlet that is connected to an external water pump, and a cylindrical filter screen is installed on the water inlet. The filter screen is equipped with a rotating scraper bar for scraping off the sludge adhering to the filter screen; the scraper bar has a spiral structure. The backwash assembly, connected to the water inlet, is used to introduce water into the filter screen to clean it. A cleaning component, located inside the filter screen, is used to clean the inner wall of the filter screen; A sludge collection component is disposed on the lower exterior of the filter screen and connected to the bottom of the filter screen. It is used to collect sludge that has been scraped off by the scraper and cleaned by the cleaning component and has passed through the mesh of the filter screen to the outside of it with the backwash water flow. An electromagnetic pyrolysis component is located downstream of and connected to the sludge collection component, and is used to pyrolyze the collected sludge under anaerobic conditions to produce a mixed gas containing tar gas and solid residue. A photoelectric quantum tar gas cracking unit is located downstream of and connected to the gas outlet of an electromagnetic pyrolysis unit, and is used to perform photoelectric quantum cracking on the mixed gas containing tar gas generated by pyrolysis. The plasma molecular reduction component, located at the rear end of the photonic quantum pyrolysis component, is used to perform molecular recombination treatment on the pyrolyzed syngas to obtain a combustible syngas with hydrogen as the main component and carbon monoxide as the auxiliary component. The cleaning assembly includes a mounting bracket, a support shaft, and a cleaning component. The mounting bracket is installed inside the filter screen. The support shaft is fixedly connected to the mounting bracket and extends along the axial direction of the filter screen. The support shaft is provided with a spiral slide rail extending around its axis. The cleaning component is sleeved on the support shaft and slides in cooperation with the support shaft. The inner wall of the cleaning component is provided with a sliding block that matches the spiral slide rail. The cleaning component has multiple mounting holes, each containing a steel ball and a spring. During the pumping process, the steel ball is dislodged from the mounting hole by suction, opening the hole. During backwashing, the spring is compressed by the water pressure, sealing the mounting hole.

2. The organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy according to claim 1, characterized in that, An elastic element is provided between the cleaning component and the top of the filter screen. The elastic element is used to drive the cleaning component to return to its initial position after backwashing.

3. The organic solid waste treatment device for reducing and converting sewage, fecal sludge, and energy according to claim 1, characterized in that, The sludge collection assembly includes a bucket-shaped collection port and a conveying channel. The top of the collection port is connected to the bottom of the filter screen, and the conveying channel is connected to the bottom of the bucket-shaped collection port. The conveying channel is equipped with a first spiral blade for conveying sludge.

4. The organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy according to claim 3, characterized in that, A first extrusion device is provided on the side of the sedimentation tank. The first extrusion device is connected to the conveying channel and extends vertically. The first extrusion device is used to perform preliminary extrusion and dewatering of sludge rich in water. A second extrusion device is provided on the side of the first extrusion device. The second extrusion device is arranged parallel to the first extrusion device and is connected to the first extrusion device. The outlet of the second extrusion device gradually narrows. The top and bottom of the scraper are provided with mounting rings. The mounting rings are rotatably fitted onto the filter screen. A bevel gear ring is fitted on the top mounting ring. A bevel gear meshing with the bevel gear ring is provided on the side of the bevel gear ring. A first rotary drive motor for driving the bevel gear is provided on the sedimentation tank.

5. The organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy according to claim 4, characterized in that, The electromagnetic pyrolysis assembly includes: an anaerobic pyrolysis kiln body for containing sludge and providing an anaerobic environment; an electromagnetic heating device located outside the anaerobic pyrolysis kiln body for heating the kiln body through electromagnetic induction to achieve pyrolysis of the sludge, and the electromagnetic heating device exerts electromagnetic interference on the material inside the kiln body during the heating process; and a residue treatment device is provided next to the solid residue outlet of the electromagnetic pyrolysis assembly for cooling or solid-liquid separation of the solid residue generated by sludge pyrolysis.

6. The organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy according to claim 3, characterized in that, The photocatalytic tar gas cracking assembly includes: a gas-liquid separation device for receiving pyrolysis gas generated by the electromagnetic pyrolysis assembly and separating a mixed gas containing tar gas; and a photocatalytic reactor connected to the gas-liquid separation device for receiving the tar mixed gas. The photocatalytic reactor is equipped with a photocatalyst and at least one high-energy photocatalytic emitter. The photocatalytic cracking assembly is used to crack the mixed gas containing a large amount of tar gas through photocatalysis and high-energy photocatalytic irradiation, and then to reassemble the cracked syngas into molecules through a plasma generator at the back end.

7. The organic solid waste treatment device for reducing and converting sewage, fecal sludge, and sludge into energy according to claim 1, characterized in that, The water pumping unit has two pumping outlets connected to a pipeline. One outlet is used to pump water from the sedimentation tank, and the other outlet is connected to the backwashing unit. Both pipelines are equipped with solenoid valves for controlling the on / off state.

8. A wastewater treatment method, applied to an organic solid waste treatment device according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Sludge and wastewater are introduced into a sedimentation tank for storage; S2. Water is drawn from the sedimentation tank through the water inlet of the pumping assembly under the drive of an external water pump, and the water is filtered through the filter screen at the water inlet. S3a. In the water pumping and filtration state, drive the spiral scraper on the filter screen to rotate to scrape off the sludge attached to the outer surface of the filter screen. S3b. When the water pumping and filtration is stopped and the backwash cleaning state is switched, backwash water is introduced into the filter screen through the backwash component. Under the pressure of the backwash water, the cleaning component cleans the inner wall of the filter screen, and the sludge on the inner wall of the filter screen passes through the filter screen mesh to the outside with the backwash water. At the same time, the spiral scraper enhances the cleaning effect of the filter screen. S3c. The sludge that has been scraped off by the spiral scraper and passed through the mesh of the filter screen to the outside is collected by the sludge collection assembly located below the filter screen. S4. The collected sludge is introduced into the anaerobic pyrolysis kiln. The kiln is heated by an electromagnetic heating device, and the sludge is pyrolyzed under anaerobic conditions to produce a mixed gas containing tar gas and solid residue. S5. During the electromagnetic heating process, electromagnetic waves are used to electromagnetically intervene in the sludge material inside the kiln. S6. Perform gas-liquid separation on the gas produced by pyrolysis to separate the mixed gas containing tar gas, and introduce the mixed gas into the photonic quantum pyrolysis component; S7. In the photonic quantum pyrolysis component, light of a specific wavelength is emitted by a high-energy photonic quantum emitter, which, in conjunction with photocatalysis, pyrolyzes the mixed gas. The pyrolyzed gas is then introduced into the plasma component to undergo molecular recombination, thereby achieving the pyrolysis and purification of tar gas in the mixed gas and the molecular recombination of the mixed gas to obtain high-calorific-value regenerated syngas. S8. Perform solid-liquid separation or cooling on the solid residue produced by pyrolysis, and collect the separated residue.

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