Sewage treatment system based on electro-catalysis method

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a sewage treatment system based on an electro-catalysis method, which is used for solving the problem of poor cleaning effect in the prior art. Comprising a sewage treatment box, a plurality of supporting legs are arranged at the lower end of the sewage treatment box, a sewage inlet pipe used for feeding sewage is arranged on the sewage treatment box, an electrolysis module used for electrolyzing the sewage is arranged in the sewage treatment box, and the sewage can be purified through the electrolysis module; the drainage end of the circulating pump is communicated with the sewage treatment tank, the water inlet end of the circulating pump is communicated with the other end of the sewage treatment tank through a circulating pipeline, and a buffer outer tank is arranged at the water outlet of the sewage treatment tank. According to the present invention, the design is performed according to the existing needs, the circulation structure can be constructed in the sewage treatment tank, the sewage electrolysis is matched, the floating impurities in the sewage are removed through filtration, the influence of the liquid level is avoided, and the sewage purification effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a sewage treatment system based on the electrocatalytic method. Background Art

[0002] The electrocatalytic oxidation technology is as follows: a power source, an anode and a cathode, and a catalyst form a complete current loop. Under the action of the current, air generates hydroxyl radical intermediates, and the radical intermediates are used as the main oxidants to react with organic pollutants in the sewage, thereby purifying the sewage. The patent with the publication number CN117902691B discloses an electrocatalytic oxidation sewage treatment device, in which a floating plate drives a fixed plate to lift, and the fixed plate drives a cleaning component to lift, so that the cleaning component can always be in contact with the surface of the sewage, thereby cleaning the dirt on the surface of the sewage and solving the problem of poor cleaning effect of the dirt. However, this cleaning method is based on the floating height for cleaning, and the impurities cleaned are still stored on the floating plate, which is inconvenient for later cleaning. At the same time, as the electrolysis time increases, the electrolysis position will be covered with impurities, which is not conducive to ensuring the electrolysis effect.

[0003] Based on this, a sewage treatment system based on the electrocatalytic method is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0004] The purpose of the present invention is to provide a sewage treatment system based on the electrocatalytic method, which solves the problem of poor cleaning effect in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A sewage treatment system based on the electrocatalytic method includes a sewage treatment tank. A plurality of legs are provided at the lower end of the sewage treatment tank. A sewage inlet pipe for feeding sewage is provided on the sewage treatment tank. An electrolysis module for electrolyzing sewage is provided inside the sewage treatment tank, and the sewage can be purified through the electrolysis module. A circulation pump is provided at one end of the sewage treatment tank. The drainage end of the circulation pump is communicated with the sewage treatment tank, and the water inlet end of the circulation pump is communicated with the other end of the sewage treatment tank through a circulation pipeline. A buffer outer tank is provided at the water outlet position of the sewage treatment tank. A floating isolation plate for blocking floating objects is provided between the buffer outer tank and the sewage treatment tank. A cleaning module for removing impurities intercepted on the surface of the floating isolation plate is provided on the sewage treatment tank.

[0006] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions: In an optional solution: a uniform material grid is provided inside the sewage treatment tank near the electrolysis module, and the uniform material grid and the inner wall of the sewage treatment tank form a slow flow area.

[0007] In an alternative solution: The cleaning module includes a displacement crossbeam arranged above the sewage treatment tank. A connecting leg is provided at each end of the displacement crossbeam. The lower end of the connecting leg is slidably arranged on a reciprocating guide rod. The two ends of the reciprocating guide rod are fixedly connected to the fixed blocks on the sewage treatment tank, so that the connecting legs can slide reciprocally along the reciprocating guide rod. A central sliding hole is provided at the central position of the displacement crossbeam. A vertical traction rod is slidably arranged in the central sliding hole. A floating filter plate for scraping impurities on the surface of the floating isolation plate is provided at the lower end of the vertical traction rod. A discharging unit for pushing impurities on its surface outward is provided on the surface of the floating filter plate. The upper end of the vertical traction rod is connected to a horizontal rod. The side surface of the horizontal rod is rotatably connected to the end of a transmission pin shaft. The other end of the transmission pin shaft is connected to a cleaning drive unit for driving it to scrape materials up and down. A discharging chute for guiding impurities is provided outside the sewage treatment tank where the floating isolation plate is located. A collection box for collecting impurities is provided at the end of the discharging chute.

[0008] In an alternative solution: The discharging unit includes a discharging scraper slidably arranged on the surface of the floating filter plate. A discharging guide rod is provided at the central position of the discharging scraper. A tail plate is provided at the outer end of the discharging guide rod. A pressing wheel is rotatably arranged on the tail plate. The tail plate is connected to the vertical traction rod through a discharging return spring. Under the action of the discharging return spring, the discharging scraper is in contact with the vertical traction rod. A guiding inclined plate for generating a driving force on the pressing wheel is provided outside the transmission belt.

[0009] In an alternative solution: The cleaning drive unit includes a drive bracket connected to the sewage treatment tank. A first transmission wheel and a horizontal rod are rotatably arranged at the end of the drive bracket. The first transmission wheel and the second transmission wheel are connected by a transmission belt. A drive motor for driving the first transmission wheel to rotate is provided on the drive bracket. A traction block is fixedly arranged on the side surface of the transmission belt. The traction block is rotatably connected to the transmission pin shaft.

[0010] In an alternative solution: The electrolysis module includes an installation frame. A sliding hole is provided at each of the four corner positions of the installation frame. A first guide rod is slidably arranged in the sliding hole. The lower end of the first guide rod is fixedly connected to the installation seat outside the sewage treatment tank. The installation seat is fixedly arranged outside the sewage treatment tank. A lifting push rod is provided on each installation seat. The output end of the lifting push rod is connected to the installation frame. The lower end of the installation frame is connected to an electrolysis plate through a suspension rod. An electrolysis area is formed between adjacent electrolysis plates.

[0011] In an alternative embodiment: The electrolysis module further includes an auxiliary cleaning unit for cleaning its surface. The auxiliary cleaning unit includes a second guide rod fixed to the inner bottom of the sewage treatment tank. A cleaning cross beam is slidably arranged between the two second guide rods. A plurality of cleaning side plates matching the surface of the electrolysis plate are arranged on the side of the cleaning cross beam. The upper end of the second guide rod is connected to the horizontal rod through a floating traction arm.

[0012] In an alternative embodiment: An aeration module for aeration is further provided inside the sewage treatment tank. The aeration module includes an aeration piston cylinder fixedly arranged on the outside of the sewage treatment tank. A piston plate is slidably arranged at the upper port of the aeration piston cylinder. A piston rod is fixedly arranged at the upper end of the piston plate. The upper end of the piston rod is connected to an inflation connecting rod. The end of the inflation connecting rod is connected to the horizontal rod. A one-way intake valve for one-way intake is arranged on the outside of the aeration piston cylinder. The exhaust end of the aeration piston cylinder is communicated with an aeration pipe. A one-way exhaust valve is arranged inside the aeration pipe. The aeration pipe extends to the inner bottom of the sewage treatment tank. A plurality of aeration nozzles for jetting air are arranged at the upper end of the aeration pipe.

[0013] In an alternative embodiment: A water discharge pipe is arranged on the outside of the buffer outer box, and a flow discharge valve is arranged on the water discharge pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is designed for the existing needs, and a circulation structure can be constructed in the sewage treatment tank. In cooperation with the electrolysis of sewage, floating impurities in the sewage are removed through filtration, and then the blocked impurities are removed in time by scraping, ensuring the sewage treatment effect. There is no need for the influence of one-way liquid level change on the treatment quality. The removed impurities are automatically pushed into the collection area, and no impurities will accumulate in the purification area. At the same time, aeration can be generated during the purification process, so that small particle impurities are removed together with the floating objects. In addition, the cleaning driving unit is reasonably coordinated to clean the attachments in the electrolysis module, ensuring the electrolysis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of one side of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the other side of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the lower side of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the electrolysis module of the present invention.

[0019] Figure 5 It is a schematic structural diagram of the aeration pipe of the present invention.

[0020] Figure 6 Schematic diagram of one side structure of the cleaning module of the present invention.

[0021] Figure 7 Schematic diagram of the other side structure of the cleaning module of the present invention.

[0022] Figure 8 For the present invention Figure 6 Partial enlarged view of the structure.

[0023] Figure 9 Schematic diagram of the cleaning side plate structure of the present invention.

[0024] Annotation of reference numerals: sewage treatment tank 100, circulation pump 101, circulation pipeline 102, support leg 103, buffer outer box 104, floating isolation plate 105, drain valve 106, material leveling grid 107, slow flow area 108; First guide rod 201, lifting push rod 202, mounting seat 203, mounting frame 204, electrolytic plate 205, suspension rod 206, cleaning side plate 207, second guide rod 208, floating traction arm 209, cleaning cross beam 210; Displacement cross beam 301, connecting leg 302, reciprocating guide rod 303, guiding inclined plate 304, vertical traction rod 305, transmission pin shaft 306, traction block 307, first transmission wheel 308, transmission belt 310, drive motor 309, drive bracket 311, second transmission wheel 312, horizontal rod 313, collection box 314, discharge chute 315, discharge scraper 316, pressing wheel 317, tail plate 318, discharge guide rod 319, discharge return spring 320, floating filter plate 321; Inflatable connecting rod 401, piston rod 402, piston plate 403, one-way intake valve 404, aeration piston cylinder 405, aeration pipe 406, aeration nozzle 407. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] As Figures 1-9As shown in the figure, an embodiment of the present invention provides a sewage treatment system based on an electrocatalytic method, which includes a sewage treatment tank 100. A plurality of legs 103 are provided at the lower end of the sewage treatment tank 100. A sewage inlet pipe for feeding sewage is provided on the sewage treatment tank 100. An electrolysis module for electrolyzing sewage is provided inside the sewage treatment tank 100. Through the electrolysis module, the sewage can be purified. A circulation pump 101 is provided at one end of the sewage treatment tank 100. The drainage end of the circulation pump 101 is communicated with the sewage treatment tank 100. The water inlet end of the circulation pump 101 is communicated with the other end of the sewage treatment tank 100 through a circulation pipeline 102. A buffer outer tank 104 is provided at the water outlet position of the sewage treatment tank 100. A floating isolation plate 105 for blocking floating objects is provided between the buffer outer tank 104 and the sewage treatment tank 100. In this way, under the action of the circulation pump 101, the sewage inside the sewage treatment tank 100 will form an internal circulation structure, and the floating objects in the sewage will be blocked by the floating isolation plate 105, thereby reducing the burden of electrolysis and avoiding these floating objects from adhering to the electrolysis module. A cleaning module for removing the impurities intercepted on the surface of the floating isolation plate 105 is provided on the sewage treatment tank 100. Through the cleaning module, the floating impurities can be removed and sent to the storage area, without worrying about the accumulation of impurities; A material leveling grid 107 is provided inside the sewage treatment tank 100 near the electrolysis module. The material leveling grid 107 and the inner wall of the sewage treatment tank 100 form a slow flow area 108, so that the water flow can enter the electrolysis module evenly, which helps to purify the sewage; The cleaning module includes a displacement crossbeam 301 arranged above the sewage treatment tank 100. A connecting leg 302 is provided at each end of the displacement crossbeam 301. The lower end of the connecting leg 302 is slidably arranged on a reciprocating guide rod 303. Both ends of the reciprocating guide rod 303 are fixedly connected to fixed blocks on the sewage treatment tank 100, so that the connecting leg 302 can reciprocate along the reciprocating guide rod 303. A central sliding hole is provided at the central position of the displacement crossbeam 301. A vertical traction rod 305 is slidably arranged in the central sliding hole. A floating filter plate 321 for scraping impurities on the surface of the floating isolation plate 105 is provided at the lower end of the vertical traction rod 305. A discharging unit for pushing the impurities on its surface outward is arranged on the surface of the floating filter plate 321. The upper end of the vertical traction rod 305 is connected to a horizontal rod 313. The side surface of the horizontal rod 313 is rotatably connected to the end of a transmission pin shaft 306. The other end of the transmission pin shaft 306 is connected to a cleaning drive unit for driving it to scrape materials up and down. A discharging chute 315 for guiding impurities is arranged outside the sewage treatment tank 100 where the floating isolation plate 105 is located. A collection box 314 for collecting impurities is arranged at the end of the discharging chute 315. Under the action of the cleaning drive unit, the floating filter plate 321 will move upward along the floating isolation plate 105, so as to scrape away the impurities attached to the position of the floating isolation plate 105. When the impurities move to the uppermost side, under the action of the discharging unit, the impurities on the surface of the floating filter plate 321 will be pushed into the discharging chute 315, and then fall into the collection box 314 along the discharging chute 315 to complete automatic cleaning; The discharging unit includes a discharging scraper 316 slidably arranged on the surface of the floating filter plate 321. A discharging guide rod 319 is provided at the central position of the discharging scraper 316. A tail plate 318 is provided at the outer end of the discharging guide rod 319. A pressing wheel 317 is rotatably arranged on the tail plate 318. The tail plate 318 is connected to the vertical traction rod 305 through a discharging return spring 320. Under the action of the discharging return spring 320, the discharging scraper 316 is attached to the vertical traction rod 305. A guiding inclined plate 304 for generating a driving force on the pressing wheel 317 is arranged outside the transmission belt 310. When the vertical traction rod 305 drives the floating filter plate 321 to move to the position of the guiding inclined plate 304, at this time, the impurities on the floating filter plate 321 also exceed the height of the sewage treatment tank 100. At this time, the inclined surface of the guiding inclined plate 304 generates a driving force on the pressing wheel 317. In this way, the pressing wheel 317 will generate a thrust on the discharging scraper 316 through the discharging guide rod 319, and the discharging scraper 316 will push the impurities on the surface of the floating filter plate 321 into the discharging chute 315, so as to complete automatic discharging; As Figure 1 、 Figure 7 、 Figure 8As shown, the cleaning drive unit includes a driving bracket 311 connected to the sewage treatment tank 100, a first transmission wheel 308 and a horizontal rod 313 are rotatably provided at the end of the driving bracket 311, the first transmission wheel 308 and the second transmission wheel 312 are connected by a transmission belt 310, a driving motor 309 for driving the first transmission wheel 308 to rotate is provided on the driving bracket 311, a traction block 307 is fixedly provided on the side of the transmission belt 310, and the traction block 307 is rotatably connected to the transmission pin 306. When driven by the driving motor 309, the first transmission wheel 308 is driven by the second transmission wheel 312. The driving wheel 308 drives the second driving wheel 312 to rotate through the driving belt 310, and the traction block 307 drives the horizontal rod 313 to reciprocate up and down through the driving pin shaft 306. When moving upward, the floating filter plate 321 will stick to the surface of the floating isolation plate 105 to scrape the material. When moving downward, the traction block 307 will drive the vertical traction rod 305 to move horizontally along the reciprocating guide rod 303 for a certain distance. This distance is the diameter of the first driving wheel 308 or the second driving wheel 312. In this way, when the floating filter plate 321 descends, it will not press down the floating objects near the floating isolation plate 105. like Figure 1 , Figure 4 , Figure 9 As shown, the electrolysis module includes a mounting frame 204, and a sliding hole is respectively provided at the four corners of the mounting frame 204, and a first guide rod 201 is slidably provided in the sliding hole, and the lower end of the first guide rod 201 is fixedly connected to the mounting seat 203 outside the sewage treatment tank 100, and the mounting seat 203 is fixedly arranged on the outside of the sewage treatment tank 100, and each of the mounting seats 203 is provided with a lifting push rod 202, and the output end of the lifting push rod 202 is connected to the mounting frame 204, and the mounting frame 204 can be hit by the lifting push rod 202. The lower end of the mounting frame 204 is connected to the electrolytic plate 205 through the suspension rod 206, and the electrolytic area is formed between the adjacent electrolytic plates 205, so as to electrolyze and purify the sewage, and the lifting push rod 202 can be extended later, so as to drive the mounting frame 204 to slide upward along the first guide rod 201, and the electrolytic plate 205 is taken out of the sewage treatment tank 100, so as to facilitate the maintenance of the electrolytic plate 205; The electrolysis module further includes an auxiliary cleaning unit for cleaning its surface. The auxiliary cleaning unit includes a second guide rod 208 fixed to the inner bottom of the sewage treatment tank 100. A cleaning cross beam 210 is slidably arranged between the two second guide rods 208. A plurality of cleaning side plates 207 matching the surface of the electrolysis plate 205 are arranged on the side of the cleaning cross beam 210. The upper end of the second guide rod 208 is connected to the horizontal rod 313 through a floating traction arm 209. In this way, when the cleaning module works, the horizontal rod 313 drives the cleaning cross beam 210 to reciprocate up and down along the second guide rod 208 through the floating traction arm 209, and the cleaning side plates 207 will remove the impurities attached to the surface of the electrolysis plate 205, so as to ensure the electrolysis effect; As Figure 1 and Figure 5 shown, an aeration module for aeration is further arranged inside the sewage treatment tank 100. The aeration module can float small particle impurities so that they can be cleaned together with the floating substances, further improving the purification effect. The aeration module includes an aeration piston cylinder 405 fixedly arranged outside the sewage treatment tank 100. A piston plate 403 is slidably arranged at the upper port of the aeration piston cylinder 405. A piston rod 402 is fixedly arranged at the upper end of the piston plate 403. The upper end of the piston rod 402 is connected to an air charging connecting rod 401. The end of the air charging connecting rod 401 is connected to the horizontal rod 313. A one-way intake valve 404 for one-way intake is arranged outside the aeration piston cylinder 405. The exhaust end of the aeration piston cylinder 405 is communicated with an aeration pipe 406. A one-way exhaust valve is arranged inside the aeration pipe 406. The aeration pipe 406 extends to the inner bottom of the sewage treatment tank 100. A plurality of aeration nozzles 407 for jetting gas are arranged at the upper end of the aeration pipe 406. When the cleaning module works, the horizontal rod 313 will drive the piston rod 402 to reciprocate up and down through the air charging connecting rod 401, so as to send gas into the aeration pipe 406, and the gas jets out along the aeration nozzles 407, thereby assisting the small particle impurities to float up; A water discharge pipe is arranged outside the buffer outer box 104, and a flow discharge valve 106 is arranged on the water discharge pipe. The purified sewage can be discharged by opening the flow discharge valve 106.

[0027] Working principle: In actual use, sewage is sent into the sewage treatment tank 100. Under the action of the circulation pump 101, the sewage inside the sewage treatment tank 100 will form an internal circulation structure, and the floating substances in the sewage will be blocked by the floating isolation plate 105; Under the action of the cleaning driving unit, the floating filter plate 321 will move upward along the floating isolation plate 105, so as to scrape off the impurities attached to the position of the floating isolation plate 105. When the impurities move to the uppermost side, under the action of the discharging unit, the impurities on the surface of the floating filter plate 321 will be pushed into the discharging slideway 315, and then fall into the collection box 314 along the discharging slideway 315 to complete automatic cleaning; When the cleaning module is working, the horizontal rod 313 drives the piston rod 402 to reciprocate up and down through the inflatable connecting rod 401, so as to send gas into the explosion-proof pipe 406, and the gas sprays out along the explosion-proof nozzle 407, thereby assisting small particle impurities to float up, so that the floating isolation plate 105 can block more impurities; The horizontal rod 313 drives the cleaning cross beam 210 to reciprocate up and down along the second guide rod 208 through the floating traction arm 209, and the cleaning side plate 207 will remove the impurities attached to the surface of the electrolytic plate 205, so as to ensure the electrolysis effect; An electrolysis area is formed between adjacent electrolytic plates 205, and then the sewage is subjected to electrolytic purification treatment. Later, the lifting push rod 202 can be extended to drive the installation frame 204 to slide upward along the first guide rod 201, and the electrolytic plate 205 is taken out of the sewage treatment tank 100, so as to facilitate the maintenance of the electrolytic plate 205.

[0028] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sewage treatment system based on an electrocatalytic method, comprising a sewage treatment tank (100), wherein a sewage inlet pipe for feeding sewage is provided on the sewage treatment tank (100), and an electrolysis module for electrolyzing sewage is arranged inside the sewage treatment tank (100), characterized in that: One end of the sewage treatment tank (100) is provided with a circulation pump (101). The drainage end of the circulation pump (101) is communicated with the sewage treatment tank (100). The water inlet end of the circulation pump (101) is communicated with the other end of the sewage treatment tank (100) through a circulation pipeline (102). A buffer outer box (104) is arranged at the water outlet position of the sewage treatment tank (100). A floating isolation plate (105) for blocking floating objects is arranged between the buffer outer box (104) and the sewage treatment tank (100). A cleaning module for removing impurities intercepted on the surface of the floating isolation plate (105) is arranged on the sewage treatment tank (100).

2. The sewage treatment system based on the electrocatalysis method according to claim 1, wherein A material leveling grid (107) is arranged inside the sewage treatment tank (100) close to the electrolysis module. The material leveling grid (107) and the inner wall of the sewage treatment tank (100) form a slow flow area (108).

3. The sewage treatment system based on the electrocatalysis method according to claim 2, wherein The cleaning module includes a displacement cross beam (301) arranged above the sewage treatment tank (100). A connecting leg (302) is arranged at each end of the displacement cross beam (301). The lower end of the connecting leg (302) is slidably arranged on a reciprocating guide rod (303). The two ends of the reciprocating guide rod (303) are fixedly connected to the fixed blocks on the sewage treatment tank (100), so that the connecting leg (302) can reciprocate along the reciprocating guide rod (303). A central sliding hole is arranged at the central position of the displacement cross beam (301). A vertical traction rod (305) is slidably arranged in the central sliding hole. A floating filter plate (321) for scraping impurities on the surface of the floating isolation plate (105) is arranged at the lower end of the vertical traction rod (305). A discharging unit for pushing impurities on its surface outward is arranged on the surface of the floating filter plate (321). The upper end of the vertical traction rod (305) is connected to a horizontal rod (313). The side of the horizontal rod (313) is rotatably connected to the end of a transmission pin shaft (306). The other end of the transmission pin shaft (306) is connected to a cleaning driving unit for driving it to scrape materials up and down. A discharging slideway (315) for guiding impurities is arranged outside the sewage treatment tank (100) where the floating isolation plate (105) is located. A collecting box (314) for collecting impurities is arranged at the end of the discharging slideway (315).

4. The sewage treatment system based on the electrocatalysis method according to claim 3, characterized in that, The discharging unit includes a discharging scraper (316) slidably arranged on the surface of the floating filter plate (321). A discharging guide rod (319) is arranged at the central position of the discharging scraper (316). A tail plate (318) is arranged at the outer end of the discharging guide rod (319). A pressing wheel (317) is rotatably arranged on the tail plate (318). The tail plate (318) is connected to the vertical traction rod (305) through a discharging return spring (320). Under the action of the discharging return spring (320), the discharging scraper (316) fits with the vertical traction rod (305). A guiding inclined plate (304) for generating a driving force on the pressing wheel (317) is arranged on the outer side of the transmission belt (310).

5. The sewage treatment system based on the electrocatalysis method according to claim 3, wherein The cleaning drive unit includes a drive bracket (311) connected to the sewage treatment tank (100). At the end of the drive bracket (311), a first transmission wheel (308) and a horizontal rod (313) are rotatably provided. The first transmission wheel (308) and the second transmission wheel (312) are connected by a transmission belt (310). A drive motor (309) for driving the first transmission wheel (308) to rotate is provided on the drive bracket (311). A traction block (307) is fixedly provided on the side of the transmission belt (310), and the traction block (307) is rotatably connected to a transmission pin shaft (306).

6. The sewage treatment system based on the electrocatalysis method according to claim 5, characterized in that, The electrolysis module includes a mounting frame (204). At the four corner positions of the mounting frame (204), a sliding hole is provided respectively. A first guide rod (201) is slidably provided in the sliding hole. The lower end of the first guide rod (201) is fixedly connected to a mounting seat (203) outside the sewage treatment tank (100). The mounting seat (203) is fixedly arranged outside the sewage treatment tank (100). A lifting push rod (202) is provided on each mounting seat (203). The output end of the lifting push rod (202) is connected to the mounting frame (204). The lower end of the mounting frame (204) is connected to an electrolysis plate (205) through a suspension rod (206). An electrolysis area is formed between adjacent electrolysis plates (205).

7. The sewage treatment system based on the electrocatalysis method according to claim 6, wherein, The electrolysis module further includes an auxiliary cleaning unit for cleaning its surface. The auxiliary cleaning unit includes a second guide rod (208) fixed to the inner bottom of the sewage treatment tank (100). A cleaning cross beam (210) is slidably provided between the two second guide rods (208). A plurality of cleaning side plates (207) matching the surface of the electrolysis plate (205) are provided on the side of the cleaning cross beam (210). The upper end of the second guide rod (208) is connected to the horizontal rod (313) through a floating traction arm (209).

8. The sewage treatment system based on the electrocatalysis method according to claim 5, wherein An aeration module for aeration is further provided inside the sewage treatment tank (100). The aeration module includes an aeration piston cylinder (405) fixedly arranged outside the sewage treatment tank (100). A piston plate (403) is slidably provided at the upper port of the aeration piston cylinder (405). A piston rod (402) is fixedly provided at the upper end of the piston plate (403). The upper end of the piston rod (402) is connected to an inflation connecting rod (401). The end of the inflation connecting rod (401) is connected to the horizontal rod (313). A one-way intake valve (404) for one-way intake is provided outside the aeration piston cylinder (405). The exhaust end of the aeration piston cylinder (405) is communicated with an aeration pipe (406). A one-way exhaust valve is provided inside the aeration pipe (406). The aeration pipe (406) extends to the inner bottom of the sewage treatment tank (100). A plurality of aeration nozzles (407) for jetting air are provided at the upper end of the aeration pipe (406).

9. The sewage treatment system based on the electrocatalysis method according to claim 1, wherein A water discharge pipe is provided outside the buffer outer box (104), and a flow discharge valve (106) is provided on the water discharge pipe.

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