Multi-stage sewage filtering and purifying device powered by new energy

Abstract

A multistage sewage filtering and purifying device powered by new energy comprises a sewage separator, a sewage purifier, a control box and a solar cell panel, a sewage conveying mechanism is arranged between the sewage separator and the sewage purifier, the solar cell panel is connected with the control box, and the sewage separator, the sewage purifier and the sewage conveying mechanism are all connected with the control box. A sewage separation screen drum is hinged in a separation box of the sewage separator, a first driving motor is fixed to the left side of the separation box, an end bearing cover is arranged at the right end of the separation box, and a cyclone separator is arranged on the right side of the sewage separation screen drum; a hollow rotating shaft is hinged to the bottom of a tank body of the sewage purifier, a multi-stage purification barrel core is arranged in the tank body, the multi-stage purification barrel core is divided into a plurality of purification cabins by a plurality of overflowing plates, and the purification cabins are filled with purification filler. According to the device, solid pollutants are discharged out of the filtering cavity during solid-liquid separation, the situation that the filtering area is occupied due to accumulation of the solid pollutants is prevented, and the purification layer can be reversely cleaned under the mechanical action of vibration and ultrasonic waves.

Description

Technical Field

[0001] The utility model relates to the field of sewage separation and purification, and in particular to a multi-stage sewage filtering and purification device powered by new energy. Background Art

[0002] Wastewater treatment refers to the process of purifying sewage so that it meets the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] The utility model patent with application number 2024202411394 discloses a sewage treatment filtering device, including a filter barrel, a plurality of supporting legs are fixedly connected to the bottom surface of the filter barrel, a dust cover is clamped on the top surface of the filter barrel, an inlet valve is arranged above the dust cover, a sewage valve is connected to the side wall of the filter barrel, a drain valve is connected to the bottom side of the filter barrel, a filter net is fixedly connected to the filter barrel, a cleaning component is located below the dust cover, and the cleaning component is located inside the filter barrel; the utility model arranges a cleaning component so that an inner cleaning brush and an outer cleaning brush can clean the inner and outer walls of the filter net to prevent impurities from clogging the mesh and affecting the filtering effect, and arranges a driving component so that the motor can drive the inner and outer cleaning brushes to rotate through a connecting rod.

[0004] Although the cleaning brush of the above-mentioned device can clean the inner and outer walls of the filter barrel to improve the filtration permeability of the filter barrel and improve the filtration efficiency of the filter barrel, the device has the following areas that need improvement during use: 1. Solid substances filtered by the filter net in the filter barrel, such as sand, mud particles and other impurities, are intercepted in the internal space of the filter net and cannot be discharged. As the volume of these solid substances gradually increases, the filtration area of ​​the filter net will inevitably decrease; 2. When the filter net is cleaned by scraping and sweeping with the cleaning component, the cleaning brush on the cleaning component will inevitably have problems such as hair loss, causing new pollution; 3. The filter net can only perform preliminary solid-liquid separation and cannot remove small-particle inorganic matter and some organic matter in the sewage. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a multi-stage sewage filtering and purification device powered by new energy. The device uses solar energy for supplementary functions, which is convenient for providing the power required for sewage filtration and purification when power outages occur in rural areas; the device can perform preliminary solid-liquid separation on sewage, and can also remove organic matter from sewage to achieve the purpose of sewage filtration and purification. It can perform solid-liquid separation on sewage during the filtration process, and discharge the separated solid pollutants from the filter cavity during solid-liquid separation to prevent the accumulation of solid pollutants and the occupation of the filtration area; the device uses a multi-stage purification layer to purify the solid-liquid separated sewage, the multi-stage purification effect is good, and the purification layer can be backwashed after purification, and the purification layer can be cleaned at the same time by the mechanical action of vibration and ultrasound to ensure the subsequent sewage purification effect.

[0006] In order to achieve the above technical effects, the utility model is implemented through the following technical solutions:

[0007] A multi-stage sewage filtration and purification device powered by new energy, comprising a sewage separator, a sewage purifier, a control box and a solar panel, a sewage conveying mechanism is arranged between the sewage separator and the sewage purifier, the solar panel is connected to the control box, and the sewage separator, the sewage purifier and the sewage conveying mechanism are all connected to the control box;

[0008] The sewage separator comprises a separation box, a sewage inlet interface is provided on one side of the separation box, a separated sewage discharge interface and a solid pollutant discharge interface are provided at the bottom of the separation box, a sewage separation screen cylinder is hingedly connected in the separation box, a first driving motor is fixed on the left side of the separation box, the first driving motor is meshed and connected with the sewage separation screen cylinder through a gear plate, the sewage separation screen cylinder rotates with the rotation of the first driving motor, an end bearing cover is provided on the right end of the sewage separation screen cylinder, the end bearing cover is fixed on the separation box, the sewage separation screen cylinder is hinged on the end bearing cover and can rotate on the end bearing cover, a vibrator is fixed on the end bearing cover, a cyclone separator is provided on the right side of the sewage separation screen cylinder, the cyclone separator is fixed in the separation box, a sewage discharge port is fixed on the bottom of the end bearing cover, and the sewage discharge port is fixed on the bottom of the end bearing cover. The outlet is connected to the water inlet of the cyclone separator and a venturi tube is connected through the connecting pipeline. The drain outlet of the cyclone separator is connected to a flushing pipe. A suction pipe is led out from the throat of the venturi tube. The suction pipe extends into the cylinder cavity from the left opening of the sewage separation screen cylinder. A mud slag trough is fixed between the flushing pipe and the suction pipe. A backwashing pressurized water pump is fixed on the separation box below the sewage separation screen cylinder. The backwashing pressurized water pump is connected to the backwashing pipe through a T-shaped connecting pipe and a normally closed solenoid valve is fixed on the connecting pipeline. The backwashing pipe is located above the top of the sewage separation screen cylinder. A flushing nozzle is fixed on the backwashing pipe. The mud slag trough opens upward to receive the mud slag flushed from the sewage separation screen cylinder. The other interface of the T-shaped connecting pipe is connected to the water inlet of the venturi tube.

[0009] The sewage purifier comprises a tank body, a hollow rotating shaft is hinged at the bottom of the tank body, a sewage purification joint is fixed at the bottom of the tank body, a multi-stage purification core is arranged in the tank body, the multi-stage purification core is divided into a plurality of purification chambers by a plurality of flow plates, the purification chambers are filled with purification fillers, an ultrasonic working probe is inserted into the hollow rotating shaft, the ultrasonic working probe passes through the flow plate, a plurality of ultrasonic transducers are fixed on the ultrasonic working probe, the ultrasonic transducers are located in the purification chamber, the hollow rotating shaft is connected to the second driving motor through a chain, and the ultrasonic transducer is connected to the ultrasonic generator through a wire;

[0010] The sewage conveying mechanism includes a sewage conveying water pump and a conveying pipeline. The conveying pipeline includes a filtered sewage suction pipe and a filtered sewage discharge pipe. The sewage conveying water pump is connected to the sewage discharge interface of the sewage separation box through the filtered sewage suction pipe. The sewage conveying water pump is connected to the sewage purification joint of the sewage purifier through the filtered sewage discharge pipe.

[0011] Furthermore, the inner wall of the sewage separation sieve cylinder is provided with spiral protrusions along the entire length, and the sewage separation sieve cylinder is provided with filter holes, which are arranged on the cylinder wall between the threaded protrusions. The left end of the sewage separation sieve cylinder is hinged in the ball bearing, and the sewage separation sieve cylinder can rotate between the ball bearing and the end bearing cover.

[0012] Furthermore, the multi-level purification core of the sewage purifier is divided into three purification chambers by two flow plates. The bottom of the tank body of the sewage purifier is a sewage pressure chamber, and the top of the tank body is a clean water discharge chamber. A drain outlet is provided on one side of the purification discharge chamber and a backwash water inlet is provided on the other side. The bottom plate and the top plate of the multi-level purification core are both provided with flow holes.

[0013] Furthermore, the purification cabin is filled with coarse sand purification particles, fine sand purification particles and activated carbon purification particles in sequence from bottom to top.

[0014] Furthermore, a voltage converter, a battery, a control circuit board and a relay module are fixed in the control box, the solar panel and the battery are connected to the voltage converter, the voltage converter is connected to the control circuit board, the control circuit board is connected to the relay module, and the first drive motor, backwashing pressurized water pump, vibrator, sewage delivery water pump, second drive motor and normally closed solenoid valve are connected to the relay module.

[0015] Furthermore, a single-chip microcomputer, a digital-to-analog conversion module, a power module and an analog-to-digital conversion module are fixed on the control circuit board, the relay module is connected to the digital-to-analog conversion module, and the digital-to-analog conversion module, the power module and the analog-to-digital conversion module are all connected to the single-chip microcomputer.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a multi-stage sewage separation device with new energy function, which uses solar energy for supplementary functions, and is convenient for providing the power required for sewage filtration and purification when power outages occur in rural areas; the device can perform preliminary solid-liquid separation on sewage, and can also remove organic matter from sewage, so as to achieve the purpose of sewage filtration and purification. It can perform solid-liquid separation on sewage during the filtration process, and discharge the separated solid pollutants from the filter cavity during solid-liquid separation to prevent the accumulation of solid pollutants and the occupation of the filtration area; the device uses a multi-stage purification layer to purify the solid-liquid separated sewage, and the multi-stage purification effect is good, and the purification layer can be backwashed after purification, and the purification layer can be cleaned at the same time by the mechanical action of vibration and ultrasound to ensure the subsequent sewage purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of a multi-stage sewage filtration and purification device powered by new energy;

[0019] Figure 2 It is a schematic diagram of the internal structure of the sewage separator;

[0020] Figure 3 is a schematic diagram of the cross-sectional structure of the sewage separation screen cylinder;

[0021] Figure 4 is a schematic diagram of the cross-sectional structure of the sewage purifier;

[0022] Figure 5 It is a schematic diagram of the structural layout in the control box.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1- sewage separator, 2- solar panel, 3- sewage purifier, 4- control box, 5- sewage delivery pump, 6- separated sewage discharge interface, 7- solid pollutant discharge interface, 8- sewage purification joint, 9- backwashing connecting pipe, 10- drain outlet, 11- hollow rotating shaft, 12- second drive motor, 13- chain, 14- ultrasonic generator, 15- sewage inlet interface, 16- sewage separation sieve cylinder, 17- driven gear plate, 18- end bearing cover, 19- vibrator, 20- first drive motor, 21- cyclone separator, 22- flushing pipe, 23- sewage outlet, 24- venturi tube, 25- backwashing pressure water pump, 26- connecting pipeline, 27 -normally closed solenoid valve, 28-backwash pipe, 29-washing nozzle, 30-suction pipe, 31-sludge tank, 41-voltage converter, 42-battery, 43-control circuit board, 44-relay module, 141-ultrasonic working probe, 142-ultrasonic transducer, 151-sewage inlet pipe, 161-spiral protrusion, 301-multi-level purification cylinder core, 302-flow plate, 303-coarse sand purification particles, 304-fine sand purification particles, 305-activated carbon purification particles, 306-clean water discharge cabin, 307-backwash water inlet, 431-single chip microcomputer, 432-power module, 433-analog-to-digital conversion module, 434-digital-to-analog conversion module. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-3 As shown, a multi-stage sewage filtration and purification device powered by new energy includes a sewage separator 1, a sewage purifier 3, a control box 4 and a solar panel 2. A sewage conveying mechanism is provided between the sewage separator 1 and the sewage purifier 3. The solar panel 2 is connected to the control box 4. The sewage separator 1, the sewage purifier 3 and the sewage conveying mechanism are all connected to the control box.

[0027] The sewage separator 1 includes a separation box, a sewage inlet interface 15 is provided on one side of the separation box, a separated sewage discharge interface 6 and a solid pollutant discharge interface 7 are provided at the bottom of the separation box, a sewage separation screen cylinder 16 is hinged in the separation box, a first drive motor 20 is fixed on the left side of the separation box, the first drive motor 20 is meshed and connected with the sewage separation screen cylinder 16 through a gear plate, the sewage separation screen cylinder 16 rotates with the rotation of the first drive motor 20, an end bearing cover 18 is provided on the right end of the sewage separation screen cylinder 16, the end bearing cover 18 is fixed on the separation box, the sewage separation screen cylinder 16 is hinged on the end bearing cover and can rotate on the end bearing cover, a vibrator 19 is fixed on the end bearing cover, a cyclone separator 21 is provided on the right side of the sewage separation screen cylinder 16, the cyclone separator 21 is fixed in the separation box, a sewage outlet 23 is fixed at the bottom of the end bearing cover 18, and the sewage outlet 23 is connected to the The water inlet of the cyclone separator 21 is connected and a venturi tube 24 is connected through the connecting pipeline. The drain port of the cyclone separator 21 is connected with a flushing pipe 22. A suction pipe 30 is led out from the throat of the venturi tube 24. The suction pipe 30 extends into the cylinder cavity from the left opening of the sewage separation screen cylinder 16. A mud slag trough 31 is fixed between the flushing pipe 22 and the suction pipe 30. A backwashing pressurized water pump 25 is fixed on the separation box below the sewage separation screen cylinder 16. The backwashing pressurized water pump 25 is connected to the backwashing pipe 28 through a T-shaped connecting pipe and a normally closed solenoid valve 27 is fixed on the connecting pipeline 26. The backwashing pipe 28 is located above the top of the sewage separation screen cylinder. A flushing nozzle 29 is fixed on the backwashing pipe 28. The mud slag trough 31 opens upward to receive the mud slag flushed from the sewage separation screen cylinder; the other interface of the T-shaped connecting pipe is connected to the water inlet of the venturi tube;

[0028] The sewage purifier comprises a tank body, a hollow rotating shaft 11 is hinged at the bottom of the tank body, a sewage purification joint 8 is fixed at the bottom of the tank body, a multi-stage purification core 301 is arranged in the tank body, the multi-stage purification core 301 is divided into a plurality of purification chambers by a plurality of flow plates 302, the purification chambers are filled with purification fillers, an ultrasonic working probe rod 141 is inserted into the hollow rotating shaft 11, the ultrasonic working probe rod 141 passes through the flow plate, a plurality of ultrasonic transducers 142 are fixed on the ultrasonic working probe rod 141, the ultrasonic transducers 142 are located in the purification chamber, the hollow rotating shaft 11 is connected to the second driving motor 12 through a chain 13, and the ultrasonic transducer 142 is connected to the ultrasonic generator 14 through a wire;

[0029] The sewage conveying mechanism includes a sewage conveying water pump 5 and a conveying pipeline, the conveying pipeline includes a filtered sewage suction pipe and a filtered sewage discharge pipe, the sewage conveying water pump 5 is connected to the sewage discharge interface of the sewage separation box through the filtered sewage suction pipe, and the sewage conveying water pump 5 is connected to the sewage purification joint 8 of the sewage purifier through the filtered sewage discharge pipe.

[0030] like Figure 3 As shown, the inner wall of the sewage separation sieve cylinder is provided with spiral protrusions 161 along the entire length, and filter holes are opened on the sewage separation sieve cylinder. The filter holes are arranged on the cylinder wall between the threaded protrusions. The left end of the sewage separation sieve cylinder is hinged in the ball bearing, and the sewage separation sieve cylinder can rotate between the ball bearing and the end bearing cover.

[0031] like Figure 4 As shown, the multi-level purification core of the sewage purifier is divided into three purification chambers by two flow plates. The bottom of the tank body of the sewage purifier is a sewage pressure chamber, and the top of the tank body is a clean water discharge chamber 306. A drain port 10 is provided on one side of the purification discharge chamber and a backwash water inlet 307 is provided on the other side. The bottom plate and the top plate of the multi-level purification core are both provided with flow holes.

[0032] The purification chamber is filled with coarse sand purification particles 303, fine sand purification particles 304 and activated carbon purification particles 305 in sequence from bottom to top.

[0033] like Figure 5 As shown, a voltage converter 41, a battery 42, a control circuit board 43 and a relay module 44 are fixed in the control box, the solar panel 2 and the battery 42 are connected to the voltage converter 41, the voltage converter 41 is connected to the control circuit board 43, the control circuit board 43 is connected to the relay module 44, the first drive motor 20, the backwashing pressurized water pump 25, the vibrator 19, the sewage conveying water pump 5, the second drive motor 12 and the normally closed solenoid valve 27 are all connected to the relay module 44, and the relay module 44 can control the circuit on and off of the first drive motor 20, the backwashing pressurized water pump 25, the vibrator 19, the sewage conveying water pump 5, the second drive motor 12 and the normally closed solenoid valve 27 to achieve corresponding start and stop control.

[0034] The voltage converter 41 can convert the voltage input by the solar panel 2, the voltage provided by the battery or the municipal electricity, and provide the corresponding working voltage to the control circuit board 43 and the first drive motor 20, the backwashing pressure water pump 25, the vibrator 19, the sewage delivery pump 5, the second drive motor 12, and the normally closed solenoid valve 27, so as to provide the corresponding supplementary energy for the equipment when there is a shortage of electricity in rural areas.

[0035] The control circuit board 43 is fixed with a single-chip microcomputer 431, a digital-to-analog conversion module 434, a power module 432 and an analog-to-digital conversion module 433, the relay module is connected to the digital-to-analog conversion module, and the digital-to-analog conversion module, the power module and the analog-to-digital conversion module are all connected to the single-chip microcomputer.

[0036] In this embodiment, the single chip microcomputer uses a 51 type single chip microcomputer, the analog-to-digital conversion module uses an ADC0832 analog-to-digital conversion chip, the digital-to-analog conversion module uses a DAC0864, ​​and the power supply module uses an AMS1117-3.3V power supply chip.

[0037] The specific application of the working of this device is as follows: the sewage to be treated enters the sewage separation sieve cylinder 16 through the sewage inlet interface 15 and the sewage inlet pipe 151, and the sewage separation sieve cylinder 16 is driven to rotate by the first driving motor. The sewage entering the sewage separation sieve cylinder 16 will be separated into solid and liquid, and the sewage flows from the filter hole to the outside of the sewage separation sieve cylinder 16 and the inside of the separation box, while the small-sized solid waste in the sewage is screened inside the sewage separation sieve cylinder 16, and the intercepted fixed waste will roll along the spiral protrusion to the sewage outlet 23 of the end cover as the sewage separation sieve cylinder 16 rotates, and the fixed waste, sludge and part of the escaped sewage will flow into the cyclone separator 21 from the sewage outlet, and the separated fixed waste and silt are discharged from the solid pollutant discharge interface 7 at the bottom of the cyclone separator 21, and the separated water enters the mud slag tank 31 in the sewage separation sieve cylinder 16 from the flushing pipe at the top of the cyclone separator and flushes the mud slag collected in the mud slag tank 31; When the filtering performance of the sieve 16 decreases or needs to be cleaned regularly, the backwashing pressurized water pump 25 is turned on, the valve of the normally closed electromagnetic valve is opened, and the backwashing pressurized water pump 25 sucks the filtered sewage in the separation box and pumps it into two paths into the venturi tube 24 and the backwashing pipe 28 respectively. The flushing nozzle 29 fixed at the bottom of the backwashing pipe 28 will spray water to flush the sewage separation sieve 16, and the flocculent or small particle solid waste attached to the inner wall of the sewage separation sieve 16 will be washed and fall into the sludge tank; When the over-pressurized water flows through the Venturi tube, negative pressure is generated at the throat of the Venturi tube. The mud-water mixture in the suction pipe 30 enters the cyclone separator 21 from the Venturi tube for circulation separation and filtration under the impact of the water flow in the flushing pipe and the attraction of the negative pressure of the Venturi tube. When the sewage separation screen cylinder 16 is backwashed, it can also be assisted by the vibration of the vibrator 19 to shake off some of the sand stuck in the filter holes of the sewage separation screen cylinder 16, thereby restoring the filtration performance of the sewage separation screen cylinder 16 to the greatest extent.

[0038] The primary treated sewage after filtration and separation is transported to the bottom of the sewage purifier through the sewage delivery pump 5, and the sewage is purified by the coarse sand purification particles 303, the fine sand purification particles 304 and the activated carbon purification particles 305 in turn and finally discharged from the drain 10, and the effect of removing organic matter in the sewage is achieved by using sand and activated carbon of different gradations; after the purification capacity of the multi-level purification cartridge core decreases, the second drive motor 12 is turned on, and the second drive motor drives the multi-level purification cartridge core to rotate through the chain, and the purification filler in the purification cabin rotates with the centrifugal force, and the organic pollutants adsorbed on the purification filler are shaken off the purification filler, and the backwash water is poured from the backwash water inlet 307 from the sewage delivery pump 5 to wash the purification filler in the purification cabin from top to bottom. In the process of irrigating the purification filler, the ultrasonic generator 14 can be reached, and the ultrasonic transducer 142 converts into ultrasonic waves after receiving the driving signal output by the ultrasonic generator, and the mechanical vibration and cavitation effect of the ultrasonic wave have a good cleaning effect on the purification filler, thereby cleaning the purification filler in all directions, providing the purification effect of the purification filler.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A multi-stage sewage filtration and purification device powered by new energy, characterized in that: It includes a sewage separator, a sewage purifier, a control box and a solar panel, a sewage conveying mechanism is arranged between the sewage separator and the sewage purifier, the solar panel is connected to the control box, and the sewage separator, the sewage purifier and the sewage conveying mechanism are all connected to the control box; The sewage separator comprises a separation box, one side of which is provided with a sewage inlet interface, a separation sewage discharge interface and a solid pollutant discharge interface are provided at the bottom of the separation box, a sewage separation screen cylinder is hingedly connected in the separation box, a first drive motor is fixed on the left side of the separation box, the first drive motor is meshed and connected with the sewage separation screen cylinder through a gear plate, the sewage separation screen cylinder rotates with the rotation of the first drive motor, an end bearing cover is provided on the right end of the sewage separation screen cylinder, the end bearing cover is fixed on the separation box, the sewage separation screen cylinder is hinged on the end bearing cover and can rotate on the end bearing cover, a vibrator is fixed on the end bearing cover, a cyclone separator is provided on the right side of the sewage separation screen cylinder, the cyclone separator is fixed in the separation box, and the bottom of the end bearing cover A sewage outlet is fixed on the top of the cyclone separator, which is connected to the water inlet of the cyclone separator and a venturi tube is connected through the connecting pipeline. A flushing pipe is connected to the drain outlet of the cyclone separator, and a suction pipe is led out from the throat of the venturi tube. The suction pipe extends into the cylinder cavity from the left opening of the sewage separation screen cylinder. A mud residue trough is fixed between the flushing pipe and the suction pipe. A backwashing pressure water pump is fixed on the separation box below the sewage separation screen cylinder. The backwashing pressure water pump is connected to the backwashing pipe through a T-shaped connecting pipe and a normally closed solenoid valve is fixed on the connecting pipeline. The backwashing pipe is located above the top of the sewage separation screen cylinder, and a flushing nozzle is fixed on the backwashing pipe. The mud residue trough opens upward to receive the mud residue flushed from the sewage separation screen cylinder. The other interface of the T-shaped connecting pipe is connected to the water inlet of the Venturi tube; The sewage purifier comprises a tank body, a hollow rotating shaft is hinged at the bottom of the tank body, a sewage purification joint is fixed at the bottom of the tank body, a multi-stage purification core is arranged in the tank body, the multi-stage purification core is divided into a plurality of purification chambers by a plurality of flow plates, the purification chambers are filled with purification fillers, an ultrasonic working probe is inserted into the hollow rotating shaft, the ultrasonic working probe passes through the flow plate, a plurality of ultrasonic transducers are fixed on the ultrasonic working probe, the ultrasonic transducers are located in the purification chamber, the hollow rotating shaft is connected to the second driving motor through a chain, and the ultrasonic transducer is connected to the ultrasonic generator through a wire; The sewage conveying mechanism includes a sewage conveying water pump and a conveying pipeline. The conveying pipeline includes a filtered sewage suction pipe and a filtered sewage discharge pipe. The sewage conveying water pump is connected to the sewage discharge interface of the sewage separation box through the filtered sewage suction pipe. The sewage conveying water pump is connected to the sewage purification joint of the sewage purifier through the filtered sewage discharge pipe.

2. The multi-stage sewage filtration and purification device powered by new energy according to claim 1 is characterized in that: The inner wall of the sewage separation sieve cylinder is provided with spiral protrusions along the entire length, and the sewage separation sieve cylinder is provided with filter holes, which are arranged on the cylinder wall between the threaded protrusions. The left end of the sewage separation sieve cylinder is hinged in the ball bearing, and the sewage separation sieve cylinder can rotate between the ball bearing and the end bearing cover.

3. The multi-stage sewage filtration and purification device powered by new energy according to claim 1 is characterized in that: The multi-level purification core of the sewage purifier is divided into three purification chambers by two flow plates. The bottom of the tank body of the sewage purifier is a sewage pressure chamber, and the top of the tank body is a clean water discharge chamber. A drain outlet is provided on one side of the purification discharge chamber and a backwash inlet is provided on the other side. The bottom plate and the top plate of the multi-level purification core are both provided with flow holes.

4. The multi-stage sewage filtration and purification device powered by new energy according to claim 3 is characterized in that: The purification cabin is filled with coarse sand purification particles, fine sand purification particles and activated carbon purification particles in sequence from bottom to top.

5. The multi-stage sewage filtration and purification device powered by new energy according to claim 3 is characterized in that: A voltage converter, a battery, a control circuit board and a relay module are fixed in the control box. The solar panel and the battery are connected to the voltage converter, the voltage converter is connected to the control circuit board, the control circuit board is connected to the relay module, and the first drive motor, the backwashing pressurized water pump, the vibrator, the sewage delivery water pump, the second drive motor and the normally closed solenoid valve are connected to the relay module.

6. The multi-stage sewage filtration and purification device powered by new energy according to claim 5 is characterized in that: The control circuit board is fixed with a single-chip microcomputer, a digital-to-analog conversion module, a power module and an analog-to-digital conversion module, the relay module is connected to the digital-to-analog conversion module, and the digital-to-analog conversion module, the power module and the analog-to-digital conversion module are all connected to the single-chip microcomputer.

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