Electrocatalytic oxidation sewage treatment equipment

Abstract

The invention relates to the technical field of sewage treatment, in particular to electrocatalytic oxidation sewage treatment equipment. A cathode column and an anode column are arranged on the two sides of the interior of the water storage tank respectively, stirring assemblies are arranged on the two sides of a movable plate, in the moving process of the collecting box, the end of a baffle rotates on the surface of a fixed column under the impact force of water flow, so that an opening is formed between the baffle and the collecting box, and sediment is rapidly collected in the moving process of the collecting box; when the collecting box stops moving, the baffle is reset under the acting force of the torsional spring, the end of the collecting box is closed, sediment is prevented from overflowing, meanwhile, due to the fact that the groove is formed in the bottom of the collecting box, the baffle arranged on the side, away from water flow impact, of the collecting box is clamped to the side wall of the groove in the moving process of the collecting box, the sediment collected into the collecting box is limited, and the service life of the collecting box is prolonged. And the sediment is prevented from falling off in the collection process.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to electrocatalytic oxidation sewage treatment equipment. Background Art

[0002] Electrocatalytic oxidation technology directly degrades organic pollutants through electrode reactions under the action of an external electric field, or utilizes the catalytic activity of electrodes or catalytic materials to produce a large number of highly oxidizing free radicals to degrade organic pollutants.

[0003] There are many existing technologies for electrocatalytic devices, such as: Chinese patent publication number CN221940205U discloses an electrocatalytic oxidation sewage treatment equipment, including a tank body and a plurality of anode plates and cathode plates arranged vertically and at intervals in the tank body, wherein the plurality of anode plates and cathode plates are connected to an external power source through cables, and also includes a cleaning component, an adjusting component and a displacement component, wherein the cleaning component is arranged on the adjusting component, and the adjusting component is used to drive the cleaning component to move relative to the tank body; the adjusting component is arranged on the displacement component, and the displacement component is used to drive the adjusting component to move in a direction away from or close to the tank body. The patent can automatically clean a plurality of electrode plates in the tank body through the cleaning component and the adjusting component, without the need for the staff to repeatedly disassemble and assemble the plurality of electrode plates, which not only simplifies the operation steps and reduces the labor intensity of the staff, but also shortens the cleaning and maintenance time and improves the work efficiency; the spatial position of the cleaning component and the adjusting component is changed by the displacement component, so as to facilitate the disassembly, assembly and replacement of the electrode plates and facilitate maintenance.

[0004] However, there are still some problems in actual use: At present, in the process of using traditional electrocatalytic oxidation sewage treatment equipment, traditional electrocatalytic oxidation sewage treatment equipment mainly relies on the redox reaction between the anode plate and the cathode plate to purify sewage. However, in actual operation, significant defects are exposed: on the one hand, the sewage in the equipment reservoir is often in a nearly static state, which greatly hinders the mass transfer process between the sewage and the electrode plate, and the pollutants are difficult to efficiently diffuse to the electrode surface and fully contact the active substances, which greatly reduces the efficiency of the electrocatalytic reaction of the anode plate and the cathode plate, and cannot give full play to their due redox efficiency, thereby extending the sewage treatment cycle and increasing the treatment cost; on the other hand, in the reverse stage of the electrochemical reaction, metal precipitates will inevitably be produced, but due to the lack of effective consideration of precipitate collection in the reservoir design, these metal precipitates are easily dispersed in the sewage, making it difficult to achieve centralized collection, resulting in a waste of resources.

[0005] In view of this, we propose an electrocatalytic oxidation wastewater treatment equipment. Summary of the invention

[0006] The purpose of the present invention is to provide an electrocatalytic oxidation sewage treatment device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention aims to provide an electrocatalytic oxidation sewage treatment device, including a water reservoir, wherein a cathode column and an anode column are respectively arranged on both sides of the interior of the water reservoir, a motor is arranged on the side wall of the water reservoir, the output end of the motor passes through the water reservoir and a screw is arranged at the end, a movable plate is arranged on the surface of the screw, and when the screw rotates, the movable plate is driven to reciprocate in the horizontal direction, a rack is arranged at the bottom of the movable plate, stirring components are arranged on both sides of the movable plate, and when the movable plate moves, the stirring components are driven to stir the sewage in the water reservoir, a collecting component is arranged at the bottom of the movable plate, and the collecting component is used to collect the precipitate generated in the electrocatalytic process, and an angle adjustment component is arranged on the top of the movable plate, and the angle adjustment component is used to adjust the angle of the collecting component to recycle the collected precipitate.

[0008] As a further improvement of the present technical solution, the stirring assembly includes a frame body arranged on both sides of the movable plate, a friction roller is arranged inside the frame body, and the side wall of the friction roller is tightly fitted with the inner wall of the water reservoir. When the movable plate drives the frame body to move, the friction roller rotates on the inner wall of the water reservoir due to the friction force.

[0009] As a further improvement of the present technical solution, a driving gear is provided at the bottom of the friction roller, a driven gear is provided on one side of the driving gear, and a stirring blade is provided at the end of the driven gear. When the driving gear rotates, the driven gear is driven to mesh and rotate, and the stirring blade provided at the end of the driven gear rotates coaxially to stir the sewage in the water storage tank.

[0010] As a further improvement of the technical solution, the collecting assembly includes a column tube arranged at the bottom of the movable plate, a sliding rod is slidingly arranged on the inner wall of the column tube, a compression spring is arranged between the column tube and the sliding rod, and a collecting box is arranged at the bottom of the sliding rod.

[0011] As a further improvement of the technical solution, a fixed column is provided at the end of the collection box, a baffle is rotatably provided on the surface of the fixed column, a torsion spring is provided on the surface of the fixed column, and both ends of the torsion spring are respectively fixed to the baffle and the side wall of the collection box.

[0012] As a further improvement of the technical solution, a groove is provided at the bottom of the collection box, and the end of the baffle is clamped on the inner wall of the groove. When the collection box is moving, the baffle impacted by the water flow rotates toward the inside of the collection box.

[0013] As a further improvement of the present technical solution, a shovel plate is provided at the end of the collection box, the surface of the shovel plate is sloped, and the bottom of the shovel plate is lower than the bottom of the collection box. The metal precipitate generated in the sewage treatment is scooped up by the shovel plate and enters the collection box for collection.

[0014] As a further improvement of the present technical solution, the angle adjustment assembly includes a fixed block arranged between the slide rod and the collection box, a rotating block is rotatably provided under the fixed block, the rotating block is fixed to the top of the collection box, support rods are provided on both sides of the rotating block to pass through both sides of the fixed block, and rotating gears are provided at the ends of the support rods, and when the rotating block drives the rotating gear to move up in a vertical direction, the rack drives the rotating gear to engage and rotate.

[0015] As a further improvement of the technical solution, a cylinder is provided on the top of the movable plate, and the piston rod at the end of the cylinder passes through the column and is fixed on the top of the sliding rod. The piston rod at the end of the cylinder is controlled to drive the sliding rod to move in the vertical direction, so that the collecting box is away from the bottom of the water reservoir.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the electrocatalytic oxidation sewage treatment equipment, the output shaft of the motor is controlled to drive the screw to rotate. When the screw rotates, it drives the moving plate to move in the horizontal direction. When the moving plate moves, it drives the frame to move horizontally. When the frame moves, it drives the frame to move. The friction roller provided inside the frame adheres to the inner wall of the water reservoir and rotates. When the friction roller rotates, it drives the driving gear to rotate. The driven gear provided on one side of the driving gear meshes and rotates. When the driven gear rotates, the stirring blade provided at the end of the driven gear rotates coaxially, so that the stirring blade provided at the end of the driven gear rotates relatively, so as to facilitate mixing and stirring of the sewage in the water reservoir. By stirring the sewage in the water reservoir, the contact frequency between pollutants and active substances is increased, and the sewage treatment and purification speed is improved.

[0017] 2. In the electrocatalytic oxidation sewage treatment equipment, when the collecting box is moving, the end of the baffle is rotated on the surface of the fixed column by the impact force of the water flow, thereby forming an opening between the baffle and the collecting box, so that the sediment can be quickly collected during the movement of the collecting box. When the collecting box stops moving, the baffle is reset by the force of the torsion spring, and the end of the collecting box is closed to prevent the sediment from overflowing. At the same time, since a groove is provided at the bottom of the collecting box, during the movement of the collecting box, the baffle provided on the side away from the impact of the water flow is clamped on the side wall of the groove, so that the sediment collected in the collecting box is limited to prevent the sediment from falling during the collection process.

[0018] 3. In the electrocatalytic oxidation sewage treatment equipment, the piston rod at the end of the control cylinder drives the slide bar to move in the vertical direction, so that the collection box is away from the bottom of the reservoir to clean the metal oxides collected inside. When a large amount of metal precipitates are collected inside the collection box, the piston rod at the end of the control cylinder drives the slide bar to move in the vertical direction. When the slide bar moves, it drives the fixed block, the rotating block and the cylinder to move in the vertical direction. During the movement of the rotating block, the rotating gears on both sides rotate on the side walls of the rack, so that the rotating block drives the collection box to rotate, and the collection box rotates to an angle of 45° with the horizontal plane. By squeezing the baffle plate to rotate on the surface of the fixed column, an opening is formed between the baffle plate and the collection box, and the metal deposits inside the collection box are scraped out and collected, which is convenient for recycling the metal deposits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the stirring assembly of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of point A; Figure 5 It is a schematic diagram of the structure of the movable plate of the present invention; Figure 6 It is a schematic diagram of the structure of the collection component of the present invention; Figure 7 is a cross-sectional view of a collection assembly of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of point B.

[0020] The meaning of each number in the figure is: 100, water reservoir; 101, cathode column; 102, anode column; 200, motor; 201, screw rod; 202, moving plate; 203, rack; 300, stirring assembly; 301, frame; 302, friction roller; 303, driving gear; 304, driven gear; 305, stirring blade; 400, collecting assembly; 401, column; 402, slide bar; 403, compression spring; 404, collecting box; 405, fixing column; 406, baffle; 407, torsion spring; 408, shovel plate; 500, angle adjustment assembly; 501, fixed block; 502, rotating block; 503, rotating gear; 504, cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The purpose of this embodiment is to provide an electrocatalytic oxidation sewage treatment device, see Figure 1-Figure 8 As shown, it includes a water reservoir 100, wherein a cathode column 101 and an anode column 102 are respectively arranged on both sides of the water reservoir 100, a motor 200 is arranged on the side wall of the water reservoir 100, an output end of the motor 200 passes through the water reservoir 100 and a screw rod 201 is arranged at the end thereof, a movable plate 202 is arranged on the surface of the screw rod 201, when the screw rod 201 rotates, the movable plate 202 is driven to reciprocate in the horizontal direction, a rack 203 is arranged at the bottom of the movable plate 202, stirring components 300 are arranged on both sides of the movable plate 202, when the movable plate 202 moves, the stirring components 300 are driven to stir the sewage in the water reservoir 100, a collecting component 400 is arranged at the bottom of the movable plate 202, the collecting component 400 is used to collect the precipitate generated in the electrocatalytic process, an angle adjustment component 500 is arranged at the top of the movable plate 202, the angle adjustment component 500 is used to adjust the angle of the collecting component 400, and the collected precipitate is recycled.

[0024] Considering that in the process of treating sewage, in order to increase the speed of sewage treatment, it is necessary to stir the sewage in the water reservoir 100 so that the sewage can be contacted with the cathode column 101 and the anode column 102 more quickly, thereby accelerating the redox reaction in the sewage, therefore, when treating the sewage in the water reservoir 100, the cathode column 101 and the anode column 102 are connected to an external power supply, and the anode column 102 is the main position where the oxidation reaction occurs during the electrocatalytic oxidation process. Under the action of the electric field, an oxidation reaction of water molecules will occur on the anode surface, generating active substances such as hydroxyl free radicals with strong oxidizing properties. For example, under the potential of the oxygen evolution reaction, water molecules will lose electrons to generate oxygen and hydrogen ions, and some hydroxyl free radicals will also be generated, which can non-selectively oxidize organic pollutants in the water; The cathode column 101 mainly undergoes reduction reaction. During the electrocatalytic oxidation process, some ions or substances in the water will obtain electrons at the cathode. For example, in sewage containing heavy metal ions, the heavy metal ions can obtain electrons on the cathode surface to undergo reduction reaction, generating metal elements or low-valent metal ions, thereby achieving the removal of heavy metals. The stirring assembly 300 includes a frame 301 arranged on both sides of the moving plate 202, a friction roller 302 is arranged inside the frame 301, and the side wall of the friction roller 302 is tightly fitted with the inner wall of the water reservoir 100. When the moving plate 202 drives the frame 301 to move, the friction roller 302 is rotated on the inner wall of the water reservoir 100 by the friction force, and a driving gear 303 is arranged at the bottom of the friction roller 302, and a driven gear 304 is arranged on one side of the driving gear 303. A stirring blade 305 is arranged at the end of the driven gear 304. When the driving gear 303 rotates, it drives the driven gear 304 to mesh and rotate, and the stirring blade 305 arranged at the end of the driven gear 304 rotates coaxially to stir the sewage in the water reservoir 100. During the electrocatalytic process, the screw rod 201 is driven to rotate by the output shaft of the motor 200, and when the screw rod 201 rotates, it drives the moving plate 202 to rotate. The movable plate 202 moves in the horizontal direction. When the movable plate 202 moves, it drives the frame 301 to move horizontally. When the frame 301 moves, it drives the frame 301 to move. The friction roller 302 provided inside the frame 301 rotates in contact with the inner wall of the water reservoir 100. When the friction roller 302 rotates, it drives the driving gear 303 to rotate. The driven gear 304 provided on one side of the driving gear 303 meshes and rotates. When the driven gear 304 rotates, the stirring blade 305 provided at the end thereof rotates coaxially, so that the stirring blade 305 provided at the end of the driven gear 304 rotates relatively, thereby facilitating mixing and stirring of the sewage in the water reservoir 100. By stirring the sewage in the water reservoir 100, the pollutants can be diffused to the vicinity of the electrode faster, thereby increasing the contact frequency between the pollutants and the active substances, and improving the sewage treatment and purification speed.

[0025] During the sewage treatment process, the electrode material dissolves during the reaction process, and the dissolved metal ions may react with other ions in the sewage to produce precipitation. In order to facilitate the collection and utilization of the precipitate, the collecting component 400 includes a column 401 provided at the bottom of the movable plate 202, and a slide bar 402 is slidably provided on the inner wall of the column 401. A compression spring 403 is provided between the column 401 and the slide bar 402, and a collecting box 404 is provided at the bottom of the slide bar 402. When the movable plate 202 moves in the horizontal direction, the column 401 provided at the bottom of the movable plate 202 drives the slide bar 402 to move. Since a compression spring 403 is provided between the column 401 and the slide bar 402, the slide bar 402 is acted upon by the compression spring 403 to push the collecting box 404 to fit the bottom of the water reservoir 100. When the collecting box 404 moves to the bottom of the water reservoir 100, it collects the precipitate, which is convenient for the subsequent recycling of the precipitate.

[0026] Considering that when the collecting box 404 is collecting sediment, since the end of the collecting box 404 is open, the sediment collected during the movement of the collecting box 404 is easy to slide out from the inside again, resulting in low sediment collection efficiency. Therefore, a fixed column 405 is provided at the end of the collecting box 404, and a baffle 406 is rotatably provided on the surface of the fixed column 405. A torsion spring 407 is provided on the surface of the fixed column 405. The two ends of the torsion spring 407 are respectively fixed to the baffle 406 and the side wall of the collecting box 404. A groove is provided at the bottom of the collecting box 404, and the end of the baffle 406 is clamped on the inner wall of the groove. When the collecting box 404 is moving, the baffle 406 impacted by the water flow rotates toward the inside of the collecting box 404. By arranging the fixed column 405 at the end of the collecting box 404, A baffle 406 is rotatably provided on the surface of the fixed column 405. When the collecting box 404 is moving, the end of the baffle 406 is rotated on the surface of the fixed column 405 by the impact force of the water flow, thereby forming an opening between the baffle 406 and the collecting box 404, so that the sediment can be quickly collected during the movement of the collecting box 404. When the collecting box 404 stops moving, the baffle 406 is reset by the force of the torsion spring 407, and the end of the collecting box 404 is closed to prevent the sediment from overflowing. At the same time, since a groove is provided at the bottom of the collecting box 404, during the movement of the collecting box 404, the baffle 406 on the side away from the impact of the water flow is clamped on the side wall of the groove, so that the sediment collected in the collecting box 404 is limited to prevent the sediment from falling during the collection process.

[0027] Since some sediment particles are small and difficult to collect during the movement of the collection box 404, a shovel plate 408 is provided at the end of the collection box 404. The surface of the shovel plate 408 is sloped, and the bottom of the shovel plate 408 is lower than the bottom of the collection box 404. The metal sediment generated during sewage treatment is scooped up by the shovel plate 408 and enters the collection box 404 for collection. When the collection box 404 drives the shovel plate 408 to move, the shovel plate 408 fits against the bottom of the water reservoir 100. Since the bottom of the shovel plate 408 is lower, the friction between the baffle plate 406 and the bottom of the water reservoir 100 is small during the movement of the collection box 404. Since the surface of the shovel plate 408 is sloped, the shovel plate 408 fits against the bottom of the water reservoir 100 and moves, and the fine sediment particles can be scraped into the collection box 404 for collection, so that the sediment generated during the electrocatalytic reaction can be completely collected, thereby improving the collection efficiency.

[0028] When a large amount of metal precipitates are collected in the collecting box 404, it is necessary to collect them and extract the metal elements. Therefore, the angle adjustment component 500 includes a fixed block 501 arranged between the slide bar 402 and the collecting box 404, a rotating block 502 is rotatably arranged below the fixed block 501, and the rotating block 502 is fixed to the top of the collecting box 404. Support sticks are arranged on both sides of the rotating block 502 and penetrate both sides of the fixed block 501. Rotating gears 503 are arranged at the ends of the supporting sticks. When the rotating block 502 drives the rotating gear 503 to move up in the vertical direction, the rack 203 drives the rotating gear 503 to mesh and rotate, and a cylinder 504 is arranged on the top of the moving plate 202. The piston rod at the end of the cylinder 504 penetrates the column 401 and is fixed to the top of the slide bar 402. The piston rod at the end of the control cylinder 504 drives the slide bar 402 to move in the vertical direction, so that the collecting box 40 4 is away from the bottom of the water reservoir 100 so as to clean the metal oxides collected therein. When a large amount of metal sediment is collected in the collecting box 404, the piston rod at the end of the control cylinder 504 drives the slide bar 402 to move in the vertical direction. When the slide bar 402 moves, it drives the fixed block 501, the rotating block 502 and the cylinder 504 to move in the vertical direction. During the movement of the rotating block 502, the rotating gears 503 provided on both sides thereof rotate on the side wall of the rack 203, so that the rotating block 502 drives the collecting box 404 to rotate, and the collecting box 404 rotates to an angle of 45° with the horizontal plane. By squeezing the baffle plate 406 to rotate on the surface of the fixed column 405, an opening is formed between the baffle plate 406 and the collecting box 404, and the metal sediments in the collecting box 404 are scraped out and collected, so as to facilitate its subsequent recycling and reduce the production cost.

[0029] When in use, the cathode column 101 and the anode column 102 are connected to an external power supply, so as to accelerate the redox reaction in the sewage, and the output shaft of the control motor 200 drives the screw rod 201 to rotate. When the screw rod 201 rotates, it drives the moving plate 202 to move in the horizontal direction. When the moving plate 202 moves, it drives the frame 301 to move horizontally. When the frame 301 moves, it drives the frame 301 to move. The friction roller 302 provided inside the frame 301 rotates in contact with the inner wall of the water storage tank 100. When the friction roller 302 rotates, it drives the driving gear 303 to rotate. The driven gear 304 provided on one side of the driving gear 303 meshes and rotates. When the driven gear 304 rotates, the stirring blade 305 provided at the end thereof rotates coaxially, so that the stirring blade 305 provided at the end of the driven gear 304 rotates relatively, so as to facilitate mixing and stirring of the sewage in the water storage tank 100. By stirring the sewage in the water storage tank 100, the contact frequency between the pollutants and the active substances is increased, and the sewage treatment and purification speed is improved; A fixed column 405 is provided at the end of the collection box 404, and a baffle 406 is rotatably provided on the surface of the fixed column 405. When the collection box 404 is moving, the end of the baffle 406 is rotated on the surface of the fixed column 405 by the impact force of the water flow, so that an opening is formed between the baffle 406 and the collection box 404, so that the sediment can be quickly collected during the movement of the collection box 404. When the collection box 404 stops moving, the baffle 406 is reset by the force of the torsion spring 407, and the end of the collection box 404 is closed to prevent the sediment from overflowing. At the same time, since the bottom of the collection box 404 is provided with a groove, during the movement of the collection box 404, the baffle 406 provided on the side away from the impact of the water flow 6 is clamped on the side wall of the groove to limit the sediment collected in the collection box 404 to prevent the sediment from falling during the collection process. When the collection box 404 drives the shovel plate 408 to move, the shovel plate 408 fits with the bottom of the water reservoir 100. Since the bottom of the shovel plate 408 is relatively low, the friction between the collection box 404 and the bottom of the water reservoir 100 is relatively small during the movement of the baffle plate 406. Since the surface of the shovel plate 408 is sloped, during the movement of the shovel plate 408 fitting the bottom of the water reservoir 100, fine sediment particles can be scraped into the collection box 404 for collection, so that the sediment generated during the electrocatalytic reaction can be completely collected, thereby improving the collection efficiency. The piston rod at the end of the control cylinder 504 drives the slide bar 402 to move in the vertical direction, so that the collection box 404 is away from the bottom of the water reservoir 100, so as to clean the metal oxides collected therein. When a large amount of metal precipitates are collected inside the collection box 404, the piston rod at the end of the control cylinder 504 drives the slide bar 402 to move in the vertical direction. When the slide bar 402 moves, it drives the fixed block 501, the rotating block 502 and the cylinder 504 to move in the vertical direction. During the movement of the rotating block 502, the rotating gears 503 on both sides thereof rotate on the side walls of the rack 203, so that the rotating block 502 drives the collection box 404 to rotate, so that the collection box 404 rotates to an angle of 45° with the horizontal plane, and by squeezing the baffle plate 406 to rotate on the surface of the fixed column 405, an opening is formed between the baffle plate 406 and the collection box 404, and the metal deposits inside the collection box 404 are scraped out and collected, so as to facilitate its subsequent recycling and reduce production costs.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Electrocatalytic oxidation sewage treatment equipment, characterized by: The invention comprises a water reservoir (100), wherein a cathode column (101) and an anode column (102) are respectively arranged on both sides of the water reservoir (100), a motor (200) is arranged on the side wall of the water reservoir (100), an output end of the motor (200) passes through the water reservoir (100) and an end thereof is provided with a screw rod (201), a surface of the screw rod (201) is provided with a moving plate (202), when the screw rod (201) rotates, the moving plate (202) is driven to reciprocate in a horizontal direction, a rack (203) is arranged at the bottom of the moving plate (202), and the moving plate (202) is provided with a gear rack. A stirring assembly (300) is provided on both sides of the plate (202); when the movable plate (202) moves, the stirring assembly (300) is driven to stir the sewage in the water storage tank (100); a collecting assembly (400) is provided at the bottom of the movable plate (202); the collecting assembly (400) is used to collect precipitates generated during the electrocatalytic process; an angle adjustment assembly (500) is provided at the top of the movable plate (202); the angle adjustment assembly (500) is used to adjust the angle of the collecting assembly (400) to recycle the collected precipitates.

2. The electrocatalytic oxidation sewage treatment equipment according to claim 1 is characterized in that: The stirring assembly (300) comprises a frame (301) arranged on both sides of a movable plate (202), a friction roller (302) being arranged inside the frame (301), a side wall of the friction roller (302) being tightly fitted to an inner wall of the water reservoir (100), and when the movable plate (202) drives the frame (301) to move, the friction roller (302) is rotated on the inner wall of the water reservoir (100) due to friction force.

3. The electrocatalytic oxidation sewage treatment equipment according to claim 2 is characterized in that: A driving gear (303) is provided at the bottom of the friction roller (302), a driven gear (304) is provided on one side of the driving gear (303), and a stirring blade (305) is provided at the end of the driven gear (304). When the driving gear (303) rotates, it drives the driven gear (304) to mesh and rotate, and the stirring blade (305) provided at the end of the driven gear (304) rotates coaxially to stir the sewage in the water storage tank (100).

4. The electrocatalytic oxidation sewage treatment equipment according to claim 1 is characterized in that: The collecting assembly (400) comprises a column (401) provided at the bottom of the movable plate (202), a sliding rod (402) being slidably provided on the inner wall of the column (401), a compression spring (403) being provided between the column (401) and the sliding rod (402), and a collecting box (404) being provided at the bottom of the sliding rod (402).

5. The electrocatalytic oxidation sewage treatment equipment according to claim 4 is characterized in that: A fixing column (405) is provided at the end of the collection box (404), a baffle (406) is rotatably provided on the surface of the fixing column (405), a torsion spring (407) is provided on the surface of the fixing column (405), and two ends of the torsion spring (407) are respectively fixed to the baffle (406) and the side wall of the collection box (404).

6. The electrocatalytic oxidation sewage treatment equipment according to claim 5 is characterized in that: The bottom of the collection box (404) is provided with a groove, and the end of the baffle (406) is clamped on the inner wall of the groove. When the collection box (404) is moving, the baffle (406) impacted by the water flow rotates toward the inside of the collection box (404).

7. The electrocatalytic oxidation sewage treatment equipment according to claim 6 is characterized in that: A shovel plate (408) is provided at the end of the collection box (404); the surface of the shovel plate (408) is sloped; the bottom of the shovel plate (408) is lower than the bottom of the collection box (404); metal precipitates generated during sewage treatment are scooped up by the shovel plate (408) and enter the collection box (404) for collection.

8. The electrocatalytic oxidation sewage treatment equipment according to claim 1 is characterized in that: The angle adjustment assembly (500) comprises a fixed block (501) arranged between the slide bar (402) and the collection box (404); a rotating block (502) is rotatably arranged below the fixed block (501); the rotating block (502) is fixed to the top of the collection box (404); support rods are arranged on both sides of the rotating block (502) and penetrate through both sides of the fixed block (501); rotating gears (503) are arranged at the ends of the support rods; when the rotating block (502) drives the rotating gear (503) to move upward in the vertical direction, the rack (203) drives the rotating gear (503) to mesh and rotate.

9. The electrocatalytic oxidation sewage treatment equipment according to claim 8, characterized in that: A cylinder (504) is provided on the top of the movable plate (202). A piston rod at the end of the cylinder (504) penetrates the column (401) and is fixed to the top of the slide bar (402). The piston rod at the end of the cylinder (504) is controlled to drive the slide bar (402) to move in a vertical direction, so that the collection box (404) is away from the bottom of the water reservoir (100).

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