A sewage treatment device for environmental protection

Abstract

The application discloses a sewage treatment device for environmental protection and relates to the field of sewage treatment. The sewage treatment device comprises a back-shaped plate, a shell, a piston arranged in the shell, and a treatment mechanism for filtering sewage suspended matter. The treatment mechanism comprises a water suction assembly and a filter assembly. The water suction assembly is arranged in a liquid inlet block and is used for opening and closing along with the upward movement and downward movement of the piston. The water suction assembly can filter large-particle impurities when pumping sewage and clean the filtered matter along with the falling of the water surface. The filter assembly is arranged in a protection box and is used for filtering the sewage suspended matter and generating electricity through the impact force of the sewage. The filter assembly cooperates with a storage tank to discharge the filtered sewage into a storage container. The application enables the filtered sewage to be directly discharged into the storage tank, avoids the reflow of the filtered sewage into the sewage for being pumped again, fundamentally eliminates the situation that the filtered water is pumped back again, guarantees the purity of the detection sample, and greatly improves the accuracy of the detection result.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a sewage treatment device for environmental protection. BACKGROUND

[0002] In the conventional process of sewage detection, water sample suspended matter analysis is usually carried out in the following steps: first, a representative water sample is collected, then it is passed through a filter or filter membrane with a known pore size to intercept solid particles that cannot pass through, then the intercepts are oven-dried and precisely weighed, and finally the percentage of suspended matter is calculated based on the ratio of the residue mass to the original water sample volume.

[0003] A sewage detection device for environmental protection described in the prior art comprises a shell, a circular groove is formed in the upper end of the shell, two push rods are slidably connected to the middle of the shell, a threaded hole is formed in the middle of the push rod, a water suction structure is fixedly connected to the lower left end of the shell, a drainage structure is fixedly connected to the lower right end of the shell, a linkage device is detachably connected to the upper end of the shell, the linkage device comprises a support table, a support is fixedly connected to the lower end of each of the four parts of the support table, a rubber plug is fixedly connected to the lower end of the support, two pull rods are sleeved to the middle of the support table, the water suction structure comprises a liquid inlet block, a liquid inlet groove is formed in the middle of the liquid inlet block.

[0004] The above technology can make the water flow from one side to the other side through the water suction structure and the drainage structure, and intercept the suspended matter in the water flow through the filter membrane, thereby improving the detection accuracy of sewage suspended matter. However, the water inlet end and the water outlet end are both operated in the sewage, which can cause the "filtered water" just discharged to be sucked back again, dilute the sample, reduce the accuracy of the results, and affect the precision and efficiency of environmental protection work. SUMMARY

[0005] Therefore, the present application aims to provide a sewage treatment device for environmental protection to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A sewage treatment device for environmental protection comprises a horseshoe-shaped plate, a shell, a piston arranged inside the shell, and a treatment mechanism for sewage suspended matter filtration. The shell is arranged in the horseshoe-shaped opening of the horseshoe-shaped plate. The lower surface of the horseshoe-shaped plate is fixed with support plates on both sides. The bottom of the long side outer wall of the shell is fixed with side plates on both sides. The lower surface of each of the two side plates is mounted with a floating air bag. The inner bottom of the shell is provided with a liquid inlet block.

[0008] The outer wall of one of the support plates is fixed with a protection box and a storage box from top to bottom. The bottom of the long side surface of the shell is communicated with a liquid discharge pipe. The liquid discharge pipe is mounted with an electromagnetic valve. The other end of the liquid discharge pipe extends to the inside of the protection box through the top end of the protection box.

[0009] The processing mechanism comprises a water absorption assembly and a filter assembly, the water absorption assembly is arranged in the liquid inlet block, the water absorption assembly is used for opening and closing following the upward movement and downward movement of the piston, and the water absorption assembly can also filter large-particle impurities when pumping sewage and clean the filtered materials following the decline of the water surface, the filter assembly is arranged in the protection box, the filter assembly is used for suspended matter filtration of the sewage and power generation through the impact force of the sewage, and the filtered sewage is discharged into the storage container in cooperation with the storage box.

[0010] Specifically, the water absorption assembly comprises a movable slot arranged at the bottom center of the liquid inlet block, four water inlet channels are arranged in the liquid inlet block, the water inlet ends of the four water inlet channels are communicated with the bottom of the slot wall of the movable slot, limit grooves are symmetrically arranged at the top of the slot wall of the movable slot, a matched stop block is slidably arranged in the movable slot, a limit plate matched with the limit groove is fixed to the outer wall of the stop block, a ring-shaped magnet is fixed to the top wall of the movable slot, an iron sheet is embedded in the top wall of the stop block, a vertical rod is fixed to the center of the top wall of the stop block, the vertical rod extends into the shell through the top of the movable slot, and an iron block is fixed to the top end of the vertical rod.

[0011] Specifically, the bottom center of the shell is communicated with a suction pipe, the top end of the suction pipe is communicated with the movable slot, and filter frames are arranged on both sides of the bottom end of the suction pipe below the shell. The top ends of the two filter frames are fixed with connecting rods, the top ends of the two connecting rods are fixedly connected with the lower surface of the shell through screws, and two inclined scrapers are fixed to the inner walls of the two support plates. The distal end of each scraper is matched with the side wall of the filter frame.

[0012] Specifically, the top of the shell is provided with a sealing cover, electric telescopic cylinders are symmetrically arranged at the top end of the sealing cover, the telescopic ends of the two electric telescopic cylinders extend into the shell and are fixed with pistons, and a cylindrical magnet matched with the iron block is embedded in the bottom center of the piston.

[0013] Specifically, the filter assembly comprises a mounting plate fixed to the side wall of the protection box by screws, the mounting plate is fixed with a filter box with an open top on one side, two filter screens are sequentially fixed in the filter box by buckles, a liquid guide pipe is communicated with the bottom of the filter box, and a protection box is arranged below the filter box on one side of the inner bottom of the protection box. The bottom end of the liquid guide pipe is communicated with one side of the top end of the protection box.

[0014] The specific technical scheme of the present application is that the inner bottom of the protection box is provided with a storage battery on one side of the protection box, the outer wall of the protection box away from the support plate is provided with a generator installed by screws, the output end of the generator is located inside the protection box and is rotationally connected with the inner wall, the output end outer wall of the generator is fixed with a plurality of blades, and the generator is connected with the storage battery through wires.

[0015] The specific technical scheme of the present application is that the outer wall of the generator is provided with a sealing box, the sealing box is connected with the outer wall of the protection box by screws, and sealing gaskets are bonded at the contact parts of the sealing box and the protection box.

[0016] The specific technical scheme of the present application is that the inner bottom of the storage box is provided with a peristaltic pump, the output port of the peristaltic pump is connected with a transfusion tube, the transfusion tube penetrates out of the storage box and is fixed with the wall of the protection box through buckles, and the other end of the transfusion tube is connected with a storage container.

[0017] The specific technical scheme of the present application is that a gap is formed on one side of the meander plate at the electromagnetic valve, and the gap is matched with the electromagnetic valve.

[0018] The specific technical scheme of the present application is that the outer wall of the shell is in sliding connection with the part of the meander plate in contact, and the length of the shell is greater than the length of the support plate.

[0019] The specific technical scheme of the present application is that a gap is formed on one side of the meander plate at the electromagnetic valve, and the gap is matched with the electromagnetic valve.

[0020] The cooperation of the processing mechanism enables the water suction assembly to open and close following the movement of the piston, and can filter large particles and impurities when pumping sewage, and can also automatically clean the filter, keep the water inflow flux stable, and greatly extend the maintenance cycle. The automatic operation reduces manual intervention and shortens the detection process time.

[0021] The sewage flow can be used to generate electricity on site, reducing the dependence on external power and further improving the accuracy and operation efficiency of environmental protection work. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure diagram of the detection device of the present application on the positive axis side.

[0023] Figure 2 It is a structure diagram of the shell of the present application on the positive axis side.

[0024] Figure 3 is a schematic view of the structure of the housing profile normal axis side of the present application;

[0025] Figure 4 is a schematic view of the structure of the housing profile normal axis side of the present application; Figure 3 is a schematic view of the structure of the housing profile normal axis side of the present application;

[0026] Figure 5 is a schematic view of the structure of the water absorption assembly of the present application;

[0027] Figure 6 is a schematic view of the structure of the water absorption assembly of the present application;

[0028] Figure 7 is a schematic view of the structure of the protection box and storage box profile normal axis side of the present application;

[0029] Figure 8 is a schematic view of the structure of the filter assembly of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, the meander plate; 101, the support plate; 102, the gap; 103, the scraper; 104, the protection box; 105, the storage box; 2, the housing; 201, the sealing cover; 202, the electric telescopic cylinder; 203, the piston; 204, the liquid inlet block; 205, the liquid outlet pipe; 2051, the electromagnetic valve; 3, the side plate; 301, the floating air bag; 4, the peristaltic pump; 401, the infusion tube; 5, the processing mechanism; 6, the water absorption assembly; 601, the movable slot; 6011, the limiting groove; 602, the stop block; 6021, the limiting plate; 603, the ring magnet; 604, the water inlet channel; 605, the vertical rod; 6051, the iron block; 606, the suction pipe; 607, the filter frame; 608, the connecting rod; 7, the filter assembly; 701, the mounting plate; 702, the filter box; 703, the filter screen; 704, the liquid guide pipe; 705, the protection box; 706, the generator; 707, the blade; 708, the battery; 709, the drain pipe; 710, the sealing box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0032] The embodiments of the present application will be described below according to the overall structure of the present application.

[0033] It should be noted that the battery 708 of the device is used to power low-power devices such as the electromagnetic valve 2051 and the peristaltic pump 4, and a control box (not shown in the figure) is further provided on the upper surface side of the meander plate 1 for unified control of all devices in the device and external controllers.

[0034] In this embodiment, please refer to Figures 1-8 As shown in the figure, a sewage treatment device for environmental protection comprises a U-shaped plate 1, a shell 2, an internal piston 203, and a treatment mechanism 5 for sewage suspended matter filtration. The shell 2 is arranged in the U-shaped opening of the U-shaped plate 1. The lower surface of the U-shaped plate 1 is fixed with a support plate 101 on both sides. The outer wall of the shell 2 is in sliding connection with the part in contact with the U-shaped plate 1. The length of the shell 2 is greater than the length of the support plate 101. The bottom of the outer wall of the long side of the shell 2 is fixed with a side plate 3 on both sides. The lower surface of the side plate 3 is installed with a floating air bag 301. The inner bottom of the shell 2 is provided with a liquid inlet block 204.

[0035] The outer wall of the support plate 101 is sequentially fixed with a protection box 104 and a storage box 105 from top to bottom. The bottom of the long side of the shell 2 is communicated with a liquid discharge pipe 205. The liquid discharge pipe 205 is installed with an electromagnetic valve 2051. The other end of the liquid discharge pipe 205 extends to the inside through the top of the protection box 104. The side of the U-shaped plate 1 is provided with an opening 102 at the position of the electromagnetic valve 2051. The opening 102 is matched with the electromagnetic valve 2051. The opening 102 is used for the movement of the electromagnetic valve 2051 and the liquid discharge pipe 205 when the shell 2 moves up and down.

[0036] The treatment mechanism 5 comprises a water suction assembly 6 and a filter assembly 7. The water suction assembly 6 is arranged in the liquid inlet block 204. The water suction assembly 6 is used for opening and closing with the upward and downward movement of the piston 203. The water suction assembly 6 can also filter large-particle impurities when pumping sewage and clean the filter material with the decline of the water surface. The filter assembly 7 is arranged in the protection box 104. The filter assembly 7 is used for suspended matter filtration of sewage and power generation through the impact force of the sewage. The inner bottom of the storage box 105 is installed with a peristaltic pump 4. The output port of the peristaltic pump 4 is connected with a liquid conveying pipe 401. The liquid conveying pipe 401 penetrates out of the storage box 105 and is fixed with the wall of the protection box 104 through buckling. The other end of the liquid conveying pipe 401 is connected with a storage container. The peristaltic pump 4 is of industrial grade, and the flow rate is ≥0.5L / min.

[0037] When the suspended substance in the collected sewage sample is analyzed and detected, the staff puts the device into the container storing the sewage sample, so that the bottom end of the two support plates 101 is in contact with the inner bottom wall of the container, the shell 2 is vertically arranged, and then the infusion tube 401 is connected with the storage container or the detection device (when the filtered sewage needs to be detected for solubility, the infusion tube 401 is connected with the corresponding detection instrument, and when it is not needed, it can be directly connected with the container), at this time, the floating air bag 301 carries the shell 2 to float on the sewage, and the water absorption assembly 6 is located in the sewage, then the staff starts the electric telescopic cylinder 202 through the external controller, the telescopic end of the two electric telescopic cylinders 202 is retracted to drive the piston 203 to move upwards, so that the piston 203 controls the stop block 602 of the water absorption assembly 6 to move upwards, the suction pipe 606, the movable through slot 601 and the shell 2 are connected in communication, and the sewage is sucked into the shell 2 through the water inlet channel 604;

[0038] Then the electromagnetic valve 2051 is opened, and the telescopic end of the electric telescopic cylinder 202 is elongated and reset, and under the action of water pressure, the stop block 602 moves downward and resets, and the water inlet channel 604 is blocked, at this time, the sewage enters the protection box 104 through the drainage pipe 205, and the falling sewage is filtered by the filter screen 703 in the filtering assembly 7 to filter out the suspended substance, and the filtered sewage will also impact the blade 707 under the action of gravity to drive the generator 706 to rotate, converting the water drainage kinetic energy into electrical energy and storing it in the battery 708 to power the electromagnetic valve 2051, the peristaltic pump 4 and other low-power devices, then the filtered water enters the storage box 105, and the peristaltic pump 4 works to transport the filtered water to the storage container through the infusion tube 401 for storage or to the corresponding detection instrument for continuous detection, and the above operation is repeated for multiple times, and the liquid level of the sewage will be lowered, at this time, the floating air bag 301 will move downward with the liquid level, and the shell 2 will move downward along the meander plate 1, so that the water absorption assembly 6 is always located below the liquid level of the sewage, and when the filter frame 607 moves downward, it will pass the end of the scraper 103, and the large particle impurities on the side wall of the filter frame 607 are scraped off by the scraper 103, reducing the blockage;

[0039] Until the sewage sample is completely filtered, the staff uses a tool to disassemble the mounting plate 701, extracts the filter box 702, disassembles the filter screen 703, dries and weighs, so as to calculate the number of suspended substances in the relative volume of sewage, and detect the suspended substances in the sewage;

[0040] Therefore, the filtered sewage can be directly discharged into the storage tank 105 into the storage container or the corresponding detection instrument, avoiding being re-pumped into the sewage to be extracted again, fundamentally eliminating the situation that the "filtered water" is pumped back, ensuring the purity of the detection sample, greatly improving the accuracy of the detection result, and the cooperative work of the processing mechanism 5 reduces manual intervention and shortens the detection process time. It can also use sewage flow to generate electricity on site, reduce external power dependence, and further improve the accuracy and operation efficiency of environmental protection work.

[0041] Please refer to Figures 2-5 As shown in FIG. 6, the water absorption assembly 6 comprises a movable through slot 601 opened at the bottom center of the liquid inlet block 204. Four water inlet channels 604 are opened in the liquid inlet block 204, and the water inlet ends of the four water inlet channels 604 are in communication with the bottom of the slot wall of the movable through slot 601. The top of the slot wall of the movable through slot 601 is symmetrically provided with a limiting slot 6011. A stop block 602 matched with the limiting slot 6011 is slidably arranged in the movable through slot 601. The outer wall of the stop block 602 is fixedly provided with a limiting plate 6021 matched with the limiting slot 6011. An annular magnet 603 is fixedly arranged on the top wall of the movable through slot 601. An iron sheet is embedded in the top wall of the stop block 602. A vertical rod 605 is fixedly arranged at the center of the top wall of the stop block 602. The vertical rod 605 extends into the shell 2 through the top of the movable through slot 601. An iron block 6051 is fixedly arranged at the top end of the vertical rod 605. The movable through slot 601 is in communication with the through hole of the liquid inlet block 204 and the shell 2.

[0042] The bottom center of the shell 2 is communicated with a suction pipe 606, the top end of the suction pipe 606 is communicated with the movable through slot 601, the lower side of the shell 2 is provided with two filter frames 607 which are arranged on both sides of the bottom end of the suction pipe 606. The top end of each filter frame 607 is fixedly provided with a connecting rod 608. The top end of each connecting rod 608 is fixedly connected with the lower surface of the shell 2 by screws. The inner wall of each support plate 101 is fixedly provided with two inclined scraper plates 103. The end of each scraper plate 103 is matched with the side wall of the filter frame 607. The top of the shell 2 is provided with a sealing cover 201. The top end of the sealing cover 201 is symmetrically provided with two electric telescopic cylinders 202. The telescopic ends of the two electric telescopic cylinders 202 extend into the shell 2 and are fixedly provided with a piston 203. The bottom end of the piston 203 is embedded with a cylindrical magnet matched with the iron block 6051.

[0043] When the device is set in sewage, the bottom end of the two filter frames 607 and the suction pipe 606 is located in the sewage, the sewage enters through the filter holes of the two filter frames 607, and the large particle impurities are filtered out, and when the piston 203 moves upward along the inside of the shell 2, the negative pressure generated and the cylindrical magnet drive the magnetically adsorbed iron block 6051 to move upward, the upward moving iron block 6051 drives the stop block 602 to move upward through the vertical rod 605, until the stop block 602 is in contact with the annular magnet 603 for magnetic adsorption, and at this time the four water inlet channels 604 are opened. Under the action of negative pressure, the sewage in the two filter frames 607 will enter from the bottom end of the suction pipe 606, enter the shell 2 after passing through the four water inlet channels 604, and when enough sewage is sucked, the telescopic end of the electric telescopic cylinder 202 will control the piston 203 to stop, thereby realizing the initial filtration of large particle impurities when the sewage is sucked, and reducing the risk of blockage.

[0044] Please refer to Figures 7-8 As shown in the figure, the filter assembly 7 includes a mounting plate 701 fixed to the side wall of the protection box 104, one side of the mounting plate 701 is fixed with a filter box 702 with an open top, the inside of the filter box 702 is fixed with two filter screens 703 in turn through buckles, the bottom of the filter box 702 is communicated with a liquid guide pipe 704, the inner bottom of the protection box 104 is provided with a protection box 705 below the filter box 702, the bottom end of the liquid guide pipe 704 is communicated with one side of the top end of the protection box 705, wherein the mounting plate 701 and the protection box 104 are sealed by a sealing gasket, and the liquid guide pipe 704 is located at the top hole of the protection box 705, and the diameter is smaller than the diameter of the hole, wherein the filter hole diameter of the filter screen 703 is 1-5mm;

[0045] The inner bottom of the protection box 104 is provided with a storage battery 708 on one side of the protection box 705, and the outer wall of the protection box 104 away from the support plate 101 is provided with a generator 706 through screws, the output end of the generator 706 is located inside the protection box 705 and is rotationally connected with the inner wall, the outer wall of the output end of the generator 706 is fixed with a plurality of blades 707, and the generator 706 is connected with the storage battery 708 through wires, the bottom of the protection box 705 is communicated with the storage box 105 through a drain pipe 709, and the outer part of the generator 706 is provided with a sealing box 710, the sealing box 710 is connected with the outer wall of the protection box 104 through screws, and the contact part of the sealing box 710 and the protection box 104 is bonded with a sealing gasket.

[0046] When the telescopic end of the electric telescopic cylinder 202 pushes the piston 203 to move downward, the water pressure makes the stopper 602 move downward, the stopper 602 blocks the movable slot 601 and the water inlet channel 604, at the same time, the electromagnetic valve 2051 is opened, the sewage in the shell 2 is discharged into the protective box 104 through the liquid discharge pipe 205, at this time, the sewage will fall on the filter screen 703 of the filter box 702, the two layers of filter screens 703 can intercept the suspended matter in the sewage, and the sewage with suspended matter intercepted will enter the protective box 705 along the liquid guide pipe 704, the water flow impacts the blade 707 to drive the output end of the generator 706 to rotate, the water drainage kinetic energy is converted into electric energy and stored in the storage battery 708, and the sewage with suspended matter intercepted will also be discharged into the storage box 105 along the drainage pipe 709, then the peristaltic pump 4 works to convey the water to the storage container through the liquid conveying pipe 401 for storage or detection in the corresponding detection instrument.

[0047] When the sewage sample is extracted, the device stops, the staff uses a tool to disassemble the mounting plate 701 from the protective box 104, and pulls it outward, so that the filter box 702 and the liquid guide pipe 704 are extracted, then the staff takes out the two layers of filter screens 703 through buckles, and dries and weighs them, calculates the number of suspended matter in the sewage with relative capacity, and detects the suspended matter in the sewage.

[0048] The working principle of the present application is as follows:

[0049] When the collected sewage sample is analyzed and detected for suspended matter, the staff puts the device into the container storing the sewage sample, so that the bottom ends of the two supporting plates 101 are in contact with the inner bottom wall of the container, the shell 2 is vertically arranged, then the liquid conveying pipe 401 is connected with the storage container or the detection device (when the filtered sewage needs to be detected for solubility, the liquid conveying pipe 401 is connected with the corresponding detection instrument, and when it is not needed, it can be directly connected with the storage container), at this time, the floating air bag 301 floats on the sewage with the shell 2, and the bottom ends of the two filter frames 607 and the suction pipe 606 are located in the sewage, the sewage enters through the filter holes of the two filter frames 607 and filters out large-particle impurities, then the staff starts the electric telescopic cylinder 202 through the external controller, the telescopic ends of the two electric telescopic cylinders 202 retract to drive the piston 203 to move upward, the negative pressure and the cylindrical magnet drive the magnetically adsorbed iron block 6051 to move upward, the upward-moving iron block 6051 drives the stopper 602 to move upward through the vertical rod 605, until the stopper 602 is in contact with the annular magnet 603 for magnetic adsorption, at this time, the four water inlet channels 604 are opened, under the action of negative pressure, the sewage in the two filter frames 607 enters from the bottom end of the suction pipe 606, enters the shell 2 after passing through the four water inlet channels 604, and when enough sewage is extracted, the telescopic end of the electric telescopic cylinder 202 controls the piston 203 to stop.

[0050] At the same time, the telescopic end of the electric telescopic cylinder 202 is extended and reset, the water pressure makes the stopper 602 move downward, the stopper 602 blocks the movable slot 601 and the water inlet channel 604, at the same time, the electromagnetic valve 2051 is opened, the sewage in the shell 2 is discharged into the protective box 104 through the liquid discharge pipe 205, at this time, the sewage will fall on the filter screen 703 of the filter box 702, the two layers of filter screens 703 will intercept the suspended solids in the sewage, and the sewage with suspended solids intercepted will enter the protective box 705 along the liquid guide pipe 704, the water flow impacts the blade 707 to drive the output end of the generator 706 to rotate, converts the drainage kinetic energy into electric energy and stores it in the storage battery 708, and the sewage with suspended solids intercepted will also be discharged into the storage box 105 along the drain pipe 709, then the peristaltic pump 4 works to transport the water to the storage container through the liquid delivery pipe 401 for storage or to the corresponding detection instrument for detection.

[0051] When the sewage sample is pumped out, the device stops, the staff uses a tool to disassemble the mounting plate 701 from the protective box 104, and pulls it outward, so that the filter box 702 and the liquid guide pipe 704 are extracted, then the staff takes out the two layers of filter screens 703 through buckles, dries and weighs, calculates the number of suspended solids in the relative volume of sewage, and detects the suspended solids in the sewage.

[0052] Although the embodiments of the present application have been shown and described, the specific embodiments are only an explanation of the present application, and are not a limitation of the application, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A sewage treatment device for environmental protection, comprising a circular plate (1), a housing (2), a piston (203) disposed inside the housing (2), and a treatment mechanism (5) for filtering suspended matter in sewage, characterized in that: The shell (2) is inserted into the circular opening of the circular plate (1), support plates (101) are fixed on both sides of the lower surface of the circular plate (1), side plates (3) are fixed on the bottom of the outer walls of the long sides of the shell (2), and floating air bags (301) are installed on the lower surfaces of the two side plates (3). A liquid inlet block (204) is provided on the inner bottom of the shell (2); A protection box (104) and a storage box (105) are fixed to the outer wall of one support plate (101) in order from top to bottom. A drainage pipe (205) is connected to the bottom of a long side surface of one side of the shell (2). A solenoid valve (2051) is installed on the drainage pipe (205). The other end of the drainage pipe (205) passes through the top of the protection box (104) and extends into the interior. The treatment mechanism (5) comprises a water absorption component (6) and a filter component (7). The water absorption component (6) is arranged in the liquid inlet block (204). The water absorption component (6) is used to open and close following the upward and downward movement of the piston (203). The water absorption component (6) can also filter large particles of impurities when pumping sewage and clean the filtered matter following the drop of the water level. The filter component (7) is arranged in the protection box (104). The filter component (7) is used to filter suspended matter in the sewage and generate electricity through the impact force of the sewage, and cooperate with the storage box (105) to discharge the filtered sewage into the storage container; The water absorption component (6) comprises a movable through groove (601) provided at the center of the bottom of the liquid inlet block (204), four water inlet channels (604) provided in the liquid inlet block (204), the water inlet ends of the four water inlet channels (604) all being connected to the bottom of the groove wall of the movable through groove (601), a limiting groove (6011) being symmetrically provided at the top of the groove wall of the movable through groove (601), a matching stopper (602) being slidably provided in the movable through groove (601), a limiting plate (6021) matching the limiting groove (6011) being fixed to the outer wall of the stopper (602), a ring magnet (603) being fixed to the top wall of the movable through groove (601), an iron sheet being embedded in the top wall of the stopper (602), and a vertical rod (605) being fixed at the center of the top wall of the stopper (602). The top of the vertical rod (605) passes through the top of the movable through groove (601) and extends into the shell (2). An iron block (6051) is fixed to the top of the vertical rod (605). A suction pipe (606) is connected to the center of the bottom of the shell (2). The top of the suction pipe (606) is connected to the movable through groove (601). Filter frames (607) are provided on both sides of the bottom end of the suction pipe (606) below the shell (2). Connecting rods (608) are fixed to the tops of the two filter frames (607). The tops of the two connecting rods (608) are fixed to the lower surface of the shell (2) by screws. Two inclined scrapers (103) are fixed to the inner walls of the two support plates (101). The end of each scraper (103) matches the side wall of the filter frame (607). A sealing cover (201) is installed on the top of the housing (2), and electric telescopic cylinders (202) are symmetrically installed on the top of the sealing cover (201). The telescopic ends of the two electric telescopic cylinders (202) extend into the interior of the housing (2) and are fixed with pistons (203). A cylindrical magnet matching the iron block (6051) is embedded in the center of the bottom end of the piston (203).

2. A sewage treatment device for environmental protection according to claim 1, characterized in that: The filter assembly (7) comprises a mounting plate (701) fixed to the side wall of the protection box (104) by screws, a filter box (702) with an open top fixed on one side of the mounting plate (701), two filter screens (703) are fixed in sequence inside the filter box (702) by means of buckles, a liquid guide tube (704) is connected to the bottom of the filter box (702), a protection box (705) is provided on one side of the inner bottom of the protection box (104) below the filter box (702), and the bottom end of the liquid guide tube (704) is connected to one side of the top end of the protection box (705).

3. A sewage treatment device for environmental protection according to claim 2, characterized in that: The inner bottom of the protection box (104) is located on one side of the protection box (705) and is equipped with a battery (708). The outer wall of the protection box (104) away from the support plate (101) is equipped with a generator (706) via screws. The output end of the generator (706) is located inside the protection box (705) and is rotatably connected to the inner wall. A plurality of blades (707) are fixed to the outer wall of the output end of the generator (706). The generator (706) is connected to the battery (708) via a wire. The bottom of the protection box (705) is connected to the storage box (105) via a drainage pipe (709).

4. A sewage treatment device for environmental protection according to claim 3, characterized in that: A sealing box (710) is provided outside the generator (706), the sealing box (710) is connected to the outer wall of the protection box (104) via screws, and a sealing gasket is bonded to the contact portion between the sealing box (710) and the protection box (104).

5. The sewage treatment device for environmental protection according to claim 1, characterized in that: A peristaltic pump (4) is installed at the inner bottom of the storage box (105); the output port of the peristaltic pump (4) is connected to an infusion tube (401); the infusion tube (401) passes through the storage box (105) and is fixed to the wall of the protection box (104) by a buckle; the other end of the infusion tube (401) is connected to the storage container.

6. The sewage treatment device for environmental protection according to claim 1, characterized in that: A notch (102) is provided on one side of the circular plate (1) at the electromagnetic valve (2051), and the notch (102) matches the electromagnetic valve (2051).

7. The sewage treatment device for environmental protection according to claim 1, characterized in that: The contact portions of the outer wall of the shell (2) and the circular plate (1) are all in sliding connection, and the length of the shell (2) is greater than the length of the support plate (101).

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