Electrochemical sewage treatment device and ecological toilet

Abstract

The electrochemical sewage treatment device comprises a toilet stool and a filter box, the filter box is arranged below the toilet stool, a mounting box is arranged below the filter box, and the mounting box is divided into a left chamber and a right chamber by a partition plate; an outlet communicated with the left chamber is formed in a bottom plate of the filter box, a primary purification box is arranged in the left chamber, and a plurality of electrode plates are arranged in the primary purification box; the left side of the primary purification box is movably connected with the mounting box, the right side of the primary purification box is movably connected with the partition plate, and a buffer mechanism and a circulating water pumping mechanism are arranged below the primary purification box; an open hole is formed in the side wall of the first-stage purification box, a through hole capable of being communicated with the open hole is formed in the partition plate, and sewage in the first-stage purification box can flow into the right cavity through the open hole and the through hole; a plurality of electrode plates are arranged in the right cavity, and a foam removing mechanism is further arranged in the right cavity. The problems that a traditional ecological toilet is limited in treatment efficiency, pollutants are difficult to remove, and the occupied space is large are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment devices, and in particular to an electrochemical sewage treatment device and an ecological toilet. Background Art

[0002] Existing eco-toilets mainly rely on biological treatment and simple physical filtration methods, which have low treatment efficiency and are difficult to effectively remove difficult-to-treat pollutants such as colloidal impurities, ammonia nitrogen and heavy metals in water. In addition, the treatment system structure of traditional devices is complex, the equipment is large, occupies a lot of space, and is inconvenient to install, making it difficult to apply in places with limited space (such as homes, public toilets, etc.).

[0003] Electrochemical methods have significant advantages in treating toilet sewage, which are mainly reflected in the following aspects: First, electrochemical treatment can efficiently remove organic matter and ammonia nitrogen in sewage, and quickly degrade pollutants into harmless substances through electrochemical reactions such as electrocoagulation and electroflotation, with high treatment efficiency and fast reaction speed. Secondly, electrochemical methods can effectively remove heavy metal ions in sewage, and precipitate or convert heavy metal ions into a more easily handled form through electrochemical redox reactions, avoiding heavy metal pollution to the environment. In addition, the electrochemical treatment process does not require the addition of a large amount of chemical agents, reducing the risk of secondary pollution.

[0004] The scheme of Chinese patent CN206188459U (ecological toilet and its electrochemical reactor) mainly uses electrochemical reactor to purify water, and forms multiple electrochemical treatment areas by staggering the vertically arranged anode plates and cathode plates, which effectively improves the treatment efficiency. The advantage of this scheme is that it has a compact structure, reasonable arrangement of electrode plates, can make full use of the electrochemical reaction space, and through the design of guide pins and connecting tubes, stable support and electrical connection of electrode plates are achieved. However, this scheme has the following disadvantages: it mainly focuses on electrochemical treatment, lacks integrated design of other links in the sewage treatment process (such as solid-liquid separation, foam removal, cyclic oxidation, etc.), and the treatment process is relatively simple; this scheme lacks linkage mechanism and automatic control system, the treatment process mainly relies on manual operation, and the degree of automation is low; this scheme is mainly aimed at the design of electrochemical reactors, lacks consideration of the overall sewage treatment process of ecological toilets, and the application scenarios are relatively limited.

[0005] The scheme of Chinese patent CN110845059B (electrochemical-based sewage treatment device) combines photocatalysis and electrochemical treatment units, uses photocatalysis to degrade organic matter, uses electrochemical treatment to recover heavy metal ions, and reduces the pressure of subsequent treatment. The advantage of this scheme is that it has a strong comprehensive treatment capacity, can effectively remove a variety of pollutants, and through ion sensors and control systems, it realizes real-time monitoring and control of the treatment process. However, this scheme has the following disadvantages: the scheme involves multiple treatment units and complex control systems, the equipment structure is complex, and the installation and maintenance costs are high. Both photocatalysis and electrochemical treatment require electrical energy, especially the photocatalytic unit, which has high requirements for light intensity and energy consumption. Because it involves multiple treatment units, the equipment of this scheme is large in size and occupies a large area, which is not suitable for application in scenarios such as ecological toilets with limited space. Summary of the invention

[0006] The present invention aims to provide an electrochemical sewage treatment device and an ecological toilet to solve the problems of limited treatment efficiency, difficulty in removing pollutants, and large space occupation in existing traditional devices.

[0007] The present invention is achieved through the following technical solutions:

[0008] An electrochemical sewage treatment device, comprising a filter box, wherein a filter screen for separating solids and liquids is arranged in the filter box, and an installation box is arranged below the filter box along the gravity direction of the sewage, and a partition is arranged in the installation box, and the partition divides the installation box into a left chamber and a right chamber; an outlet connected to the left chamber is arranged on the bottom plate of the filter box, and a first-level purification box is arranged in the left chamber, and a plurality of first anode plates and a plurality of first cathode plates are arranged in the first-level purification box; along the gravity direction perpendicular to the sewage, the left side of the first-level purification box is movably connected to the installation box, and the right side of the first-level purification box is movably connected to the partition; the first-level purification box A buffer mechanism and a circulating water pump mechanism are provided below the primary purification box; an opening is provided on the side wall of the primary purification box, and a through hole that can be connected to the opening is provided on the partition, so that the sewage in the primary purification box can flow into the right chamber through the opening and the through hole; a plurality of second anode plates, a plurality of second cathode plates and a foam removal mechanism are provided in the right chamber; when the sewage in the primary purification box reaches the bearing limit of the buffer mechanism, the primary purification box moves downward, connects the opening and the through hole, and drives the foam removal mechanism to clean the foam on the liquid surface of the right chamber, and at the same time drives the circulating water pump mechanism to stir the liquid in the right chamber.

[0009] Preferably, the foam removal mechanism includes a perforation provided on the partition and a connecting rod provided on the side wall of the primary purification box, the connecting rod extends into the right chamber through the perforation, one end of the connecting rod is connected to the side wall of the primary purification box, and the other end of the connecting rod is provided with a vertical rod; the right chamber is also provided with a first sprocket, a second sprocket and a chain matching the first sprocket and the second sprocket, the first sprocket and the second sprocket are respectively rotatably connected to the inner wall of the right chamber through their respective rotating shafts; a third gear segment is fixedly provided on the rotating shaft of the first sprocket, and a first gear segment matching the third gear segment is provided on the connecting rod; when the primary purification box moves back and forth, the first sprocket is rotated by the connecting rod, the vertical rod and the first gear segment on the vertical rod, thereby driving the chain to rotate back and forth; the chain is divided into an upper chain and a lower chain, and a collecting mechanism is movably connected to the lower chain; when the chain rotates, the collecting mechanism can remove the foam on the liquid surface of the right chamber along the chain movement path.

[0010] Preferably, the collecting mechanism includes a cleaning plate perpendicular to the liquid level in the right chamber and two collecting plates, each of the collecting plates is vertically mounted on the cleaning plate, a connecting plate is provided above the cleaning plate, a locking rod is provided on the connecting plate, and the locking rod hinges the connecting plate and the chain; a collecting space is formed between the two collecting plates to prevent the foam from being squeezed out by the cleaning plate; a sewage outlet is provided on the side wall of the right chamber.

[0011] Preferably, the buffer mechanism includes a guide cylinder arranged on the lower side of the first-stage purification box, a driving rod is arranged in the guide cylinder, a fixed cylinder is arranged on the bottom plate of the left chamber, a spring connected to each other is arranged between the guide cylinder and the fixed cylinder, and the spring is sleeved on the outer wall of the driving rod; when the spring is in the initial state, the opening is not connected to the through hole.

[0012] Preferably, the circulating water pumping mechanism includes a pump body arranged on the bottom plate of the left chamber, and the pump body is provided with a first pump wheel and a second pump wheel arranged horizontally; it also includes a first water pipe and a second water pipe, the first water pipe is arranged above the first pump wheel and the second pump wheel, and the second water pipe is arranged below the first pump wheel and the second pump wheel; the first water pipe and the second water pipe are both connected to the right chamber; the upper end of the driving rod is movably connected in the guide cylinder, and the two sides of the lower end of the driving rod are provided with a second gear section; a first runner is fixedly provided on the rotating shaft of the first pump wheel, and a second runner is fixedly provided on the rotating shaft of the second pump wheel; the second gear section matches the first runner and the second runner; when the driving rod moves along its axis, the first pump wheel and the second pump wheel can be caused to rotate in the opposite direction through the first runner and the second runner, thereby completing the pumping of water to the liquid in the right chamber.

[0013] Preferably, the centers of the first sprocket and the second sprocket are on the same horizontal line, and the diameter of the first sprocket is greater than the diameter of the second sprocket.

[0014] Preferably, wedge blocks are provided on both of the two collecting plates, and the thickness of the wedge blocks gradually decreases along the collecting direction of the collecting plates.

[0015] Preferably, the electrochemical sewage treatment device also includes an air purification mechanism, which includes a ventilation pipe, and the ventilation pipe is connected to a first pipe, a second pipe and a sewage pipe; the first pipe is connected to a filter box, and the second pipe is connected to a right chamber; the sewage pipe is arranged in the sewage outlet; one end of the ventilation pipe is connected to a collecting tank, and the other end of the ventilation pipe is connected to a purifier, and the purifier is arranged above the ground; a plurality of the first anode plates and a plurality of first cathode plates are provided on the inner wall of the first-level purification box, and the first anode plates and the first cathode plates are cross-arranged, and a gap is left between the lower ends of the first anode plates and the first cathode plates and the bottom plate of the first-level purification box.

[0016] Preferably, a first one-way valve is provided in the first pipeline, and a second one-way valve is provided in the second pipeline; the first one-way valve and the second one-way valve allow the gas in the filter box and the right chamber to enter the ventilation pipe.

[0017] An ecological toilet comprises the electrochemical sewage treatment device and a toilet bowl, wherein the toilet bowl is arranged above the filter box and is connected to the filter box.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects: The technical solution of the present invention achieves efficient, compact and automated sewage treatment effects through the coordinated work of electrochemical components and linkage mechanisms. The solution utilizes anode plates and cathode plates that are arranged vertically and staggered front and back to form multiple electrochemical treatment areas, which effectively improves the efficiency of electrochemical reactions and quickly removes pollutants such as colloidal impurities, ammonia nitrogen and heavy metals in sewage. In addition, the solution realizes automatic reciprocating motion and foam removal of the purification box through a linkage mechanism, reduces manual intervention and improves treatment efficiency. Overall, the technical solution has significant advantages in treatment efficiency, pollutant removal capacity and degree of automation, and has a compact structure, making it suitable for application in scenarios such as ecological toilets with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the ecological toilet of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the sewage treatment device of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the primary purification box of the present invention;

[0023] Figure 4 for Figure 2 A partial enlarged view of

[0024] Figure 5 It is a top view of the circulating water pump mechanism of the present invention;

[0025] Figure 6 It is a side view of the circulating water pump mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the installation positions of the cleaning plate, the collecting plate, the connecting plate and the locking rod of the present invention;

[0027] Figure 8 It is a schematic diagram of the foam removal mechanism structure of the present invention;

[0028] Fig. 9 It is a top view of the foam removal mechanism of the present invention.

[0029] The reference numerals represent:

[0030] 1. Toilet,

[0031] 2, filter box, 201, filter screen, 202, outlet, 203, first check valve,

[0032] 3, installation box, 301, partition, 3011, through hole, 302, guide cylinder, 303, drive rod, 3031, second gear segment, 304, spring, 305, pump body, 306, first pump wheel, 3061, first runner, 3062, second runner, 307, second pump wheel, 308, first water pipe, 309, second water pipe,

[0033] 4, primary purification box, 401, scraper, 402, first anode plate, 403, first cathode plate, 404, connecting rod, 405, vertical rod, 406, first gear section, 407, guide rod, 408, opening,

[0034] 501, second anode plate, 502, second cathode plate, 503, second one-way valve, 504, collection port, 505, sewage outlet, 6, collection pipe, 7, ventilation pipe, 701, first pipeline, 702, second pipeline, 703, sewage pipe, 704, collection tank, 8, purifier,

[0035] 901, first sprocket, 9011, third gear segment, 902, second sprocket, 903, chain, 904, cleaning plate, 905, collecting plate, 906, connecting plate, 9061, locking rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiment of the present invention clearer, the technical scheme of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. The schematic implementation mode of the present invention and its description are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual research and development stage.

[0037] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0038] Traditional eco-toilets mainly rely on biological treatment and simple physical filtration, with low treatment efficiency, and it is difficult to effectively remove stubborn pollutants such as colloidal impurities, ammonia nitrogen and heavy metals in sewage. Biological treatment requires a long reaction time, is sensitive to environmental conditions, and has unstable treatment effects. In addition, traditional devices usually use multi-stage biological treatment or physical filtration systems, which are large in size, complex in structure, occupy more space, and are inconvenient to install, making them difficult to use in places with limited space (such as homes, public toilets, etc.). These problems make it difficult for traditional devices to meet the needs of efficient, compact and automated sewage treatment. In contrast, electrochemical treatment methods can quickly remove a variety of pollutants, and the equipment has a compact structure, which is suitable for efficient sewage treatment in limited spaces.

[0039] Embodiment 1:

[0040] like Figure 1 , Figure 2As shown, an electrochemical sewage treatment device includes a filter box 2, in which a filter screen 201 for separating solids and liquids is provided, and along the gravity direction of the sewage, a mounting box 3 is provided below the filter box 2, and a partition 301 is provided inside the mounting box 3, and the partition 301 divides the mounting box 3 into a left chamber and a right chamber; an outlet 202 connected to the left chamber is provided on the bottom plate of the filter box 2, and a first-level purification box 4 is provided in the left chamber, and a plurality of first anode plates 402 and a plurality of first cathode plates 403 are provided in the first-level purification box 4; along the gravity direction perpendicular to the sewage, the left side of the first-level purification box 4 is movably connected to the mounting box 3, and the right side of the first-level purification box 4 is movably connected to the partition 301; a first-level purification box 4 is provided below Buffer mechanism and circulating water pump mechanism; an opening 408 is provided on the side wall of the primary purification box 4, and a through hole 3011 which can be connected with the opening 408 is provided on the partition 301, so that the sewage in the primary purification box 4 can flow into the right chamber through the opening 408 and the through hole 3011; a plurality of second anode plates 501 and a plurality of second cathode plates 502 are provided in the right chamber, and a foam removal mechanism is also provided; when the sewage in the primary purification box 4 reaches the bearing limit of the buffer mechanism, the primary purification box 4 moves downward, connects the opening 408 and the through hole 3011, and drives the foam removal mechanism to clean the foam on the liquid surface of the right chamber, and at the same time drives the circulating water pump mechanism to stir the liquid in the right chamber to promote the reaction.

[0041] It should be noted that the partition 301 is not only used to separate the space, but also plays the role of guiding the water flow and supporting the primary purification box 4. The partition 301 divides the installation box 3 into a left chamber and a right chamber. The left chamber is used to accommodate the primary purification box 4, while the right chamber is used for subsequent secondary purification treatment. The design of the partition 301 ensures that the sewage naturally flows into the left chamber under the action of gravity, and flows into the right chamber under certain conditions, realizing staged treatment.

[0042] The core of this solution is to achieve efficient sewage treatment by combining gravity drive and electrochemical treatment. The filter box 2 first performs preliminary solid-liquid separation through the filter screen 201 to remove larger particles. The filtered sewage enters the left chamber and removes colloidal impurities and pollutants through electrocoagulation in the primary purification box 4. The electrocoagulation method uses the electric field generated by the electrode plate to cause the colloidal particles in the water to flocculate and precipitate, effectively removing pollutants.

[0043] When the sewage in the primary purification box 4 reaches its carrying limit, gravity moves the purification box downward and connects to the channel with the right chamber. The sewage flows into the right chamber for secondary treatment. The electrical flotation method is used to bring the flocculated sediment to the page through bubbles to form a foam layer, thus realizing the automated sewage flow. The gravity drive also reduces the complexity and energy consumption of mechanical components.

[0044] In the primary purification tank 4, electrocoagulation is used to remove colloidal impurities and pollutants in the water. The principle is that an electric field is generated between the anode and the cathode through the electrolysis process. The colloidal particles in the water lose stability under the action of the electric field and adsorb on the electrode surface to form flocs. These flocs gradually settle to the bottom of the purification tank, thereby achieving solid-liquid separation. The electrocoagulation method can not only effectively remove suspended matter, but also degrade some organic matter and ammonia nitrogen through electrochemical reactions.

[0045] In the right chamber, electroflotation is used to further treat the wastewater. The principle is to use tiny bubbles (such as hydrogen and oxygen) generated by electrolysis, which attach to the flocs, reduce their density and float to the liquid surface to form a foam layer. The foam layer can be removed by mechanical devices, thereby achieving the separation and removal of suspended matter. Electroflotation not only improves the efficiency of solid-liquid separation, but also enhances the oxidation reaction through the stirring effect of bubbles, further degrading pollutants.

[0046] It should be noted that the reciprocating motion of the primary purification box 4 is achieved through the guide rail system of the guide rod 407. In this solution, the guide rail is fixedly mounted on the side wall of the left chamber, and the guide rod 407 is connected to both sides of the primary purification box 4. The guide rod 407 can slide freely on the guide rail, so that the purification box can move up and down. When the sewage accumulates to a certain weight, the guide rod 407 moves downward along the guide rail under the action of gravity, driving the purification box to descend. The advantages are simple structure, smooth movement and easy maintenance. The guide rail system of the guide rod 407 can effectively support the weight of the purification box and ensure that it remains stable during movement to avoid tilting or jamming. In addition, the friction of the guide rail of the guide rod 407 is small, which can reduce the movement resistance and extend the service life of the equipment.

[0047] When the sewage in the primary purification box 4 reaches the load limit, the primary purification box 4 descends and connects to the channel with the right chamber, and the sewage flows into the right chamber for electrical flotation treatment. At this time, the foam removal mechanism uses the connecting rod 404 and the chain 903 system to drive the cleaning plate 904 and the collecting plate 905 to move along the liquid surface, remove and collect the foam layer generated by the electrical flotation, and prevent the foam from overflowing. At the same time, the circulating pump water mechanism drives the pump wheel to rotate in the opposite direction through the linkage of the driving rod 303 and the primary purification box 4, so that the liquid in the right chamber circulates and enhances the oxidation reaction. The linkage between the two not only realizes the automated foam removal and liquid circulation, but also further improves the treatment efficiency of the electrical flotation through the circulation flow, ensuring that the pollutants are fully oxidized and decomposed, and finally the sewage meets the discharge or reuse standards.

[0048] The collection port 504 and the collection pipe 6 are arranged below the right chamber to effectively collect clean water that meets the discharge or reuse standards after electrochemical treatment. After the electrochemical reaction is completed, most of the pollutants in the water in the right chamber have been removed and the water quality is purified. Through the collection port 504 and the collection pipe 6, the treated clean water can be led out from the bottom of the chamber to avoid mixing with untreated sewage, ensuring stable water quality and facilitating subsequent reuse or discharge. At the same time, the design of the collection pipe 6 can also effectively prevent foam or floating objects from entering the collection system, ensuring that the collected water is clean and meets the reuse or discharge standards.

[0049] like Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, as a further improvement of this embodiment, the foam removal mechanism includes a through hole provided on the partition 301 and a connecting rod 404 provided on the side wall of the primary purification box 4, the connecting rod 404 extends into the right chamber through the through hole, one end of the connecting rod 404 is connected to the side wall of the primary purification box 4, and the other end of the connecting rod 404 is provided with a vertical rod 405; the right chamber is also provided with a first sprocket 901, a second sprocket 902 and a chain 903 matched with the first sprocket 901 and the second sprocket 902, the first sprocket 901 and the second sprocket 902 are respectively rotatably connected to the inside of the right chamber through their respective rotating shafts. On the wall; a third gear segment 9011 is fixedly provided on the rotating shaft of the first sprocket 901, and a first gear segment 406 matching the third gear segment 9011 is provided on the connecting rod 404; when the first-stage purification box 4 moves back and forth, the first sprocket 901 is rotated by the connecting rod 404, the vertical rod 405 and the first gear segment 406 on the vertical rod 405, thereby driving the chain 903 to reciprocate; the chain 903 is divided into an upper chain and a lower chain, and a collecting mechanism is movably connected to the lower chain; when the chain 903 rotates, the collecting mechanism can clear the liquid surface foam in the right chamber along the movement path of the chain 903.

[0050] Working principle:

[0051] When the sewage in the primary purification box 4 reaches the load limit, the purification box moves downward under the action of gravity, and drives the vertical rod 405 to move through the connecting rod 404. The first gear segment 406 on the vertical rod 405 meshes with the first sprocket 901, driving the first sprocket 901 to rotate, and then drives the second sprocket 902 to rotate through the chain 903. The reciprocating motion of the chain 903 drives the collection mechanism installed on the chain 903 to move along the liquid surface of the right chamber. The cleaning plate 904 in the collection mechanism pushes the foam on the liquid surface to the collection plate 905. The foam is collected in the space between the two collection plates 905 and discharged through the sewage outlet 505. This linkage process realizes the automatic removal and collection of foam, ensures that the foam generated by the electrical floatation method will not affect the subsequent processing process, improves the overall processing efficiency, and prevents foam overflow.

[0052] like Figure 7 , Figure 8 As shown, as a further improvement of the present embodiment, the collecting mechanism includes a cleaning plate 904 perpendicular to the liquid surface in the right chamber and two collecting plates 905, each collecting plate 905 is vertically mounted on the cleaning plate 904, a connecting plate 906 is provided above the cleaning plate 904, a locking rod 9061 is provided on the connecting plate 906, and the locking rod 9061 hinges the connecting plate 906 and the chain 903; a collecting space is formed between the two collecting plates 905 to prevent the foam from being squeezed out by the cleaning plate; a sewage outlet 505 is provided on the side wall of the right chamber.

[0053] It should be noted that the foam removal mechanism is not only for scraping foam, but also for collecting foam and preventing foam from overflowing. The cleaning plate 904 and the collecting plate 905 in the collecting mechanism work together to ensure that the foam is effectively collected and guided to the sewage outlet 505.

[0054] The chain 903 reciprocates under the drive of the sprocket, and the connecting plate 906 is hinged to the chain 903 through the locking rod 9061, driving the cleaning plate 904 to move along the liquid surface. The cleaning plate 904 pushes the foam on the liquid surface to between two vertically mounted collecting plates 905. The foam is collected in the space formed by the collecting plates 905 and discharged through the drain port 505. The design of the collecting plate 905 ensures that the foam is effectively contained to prevent it from being pushed back to the liquid surface or overflowing by the cleaning plate 904. The collection mechanism not only realizes the removal of foam, but also ensures the reliable collection and discharge of foam, avoiding the influence of foam on subsequent treatment processes. The design of this mechanism ensures the automation and efficiency of the foam removal process, reduces manual intervention, and improves the overall treatment efficiency.

[0055] like Figure 1 and Figure 4 As shown, as a further improvement of this embodiment, the buffer mechanism includes a guide cylinder 302 arranged on the lower side of the first-stage purification box 4, a driving rod 303 is arranged in the guide cylinder 302, a fixed cylinder is arranged on the bottom plate of the left chamber, a spring 304 connected to each other is arranged between the guide cylinder 302 and the fixed cylinder, and the spring 304 is sleeved on the outer wall of the driving rod 303; when the spring 304 is in the initial state, the opening 408 is not connected to the through hole 3011.

[0056] When the sewage in the primary purification box 4 accumulates to a certain weight, the purification box begins to descend under the action of gravity. The guide cylinder 302 and the drive rod 303 guide the purification box to descend steadily along a fixed path. The spring 304 is compressed during the descent of the purification box, absorbing the kinetic energy of the descent, providing a buffer force to prevent the purification box from falling suddenly or vibrating violently. The resilience of the spring 304 helps the purification box to stop stably after it has fallen into place, ensuring that the purification box is accurately docked with the channel of the secondary purification box. This design not only achieves the smooth descent of the purification box, but also protects the equipment through the buffering effect and extends the service life of the equipment.

[0057] The design of the guide cylinder 302 and the driving rod 303 ensures the smooth descent of the purification box, and the setting of the spring 304 absorbs energy through compression and rebound to play a buffering role.

[0058] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, as a further improvement of this embodiment, the circulating water pump mechanism includes a pump body 305 arranged on the bottom plate of the left chamber, and the pump body 305 is provided with a first pump wheel 306 and a second pump wheel 307 arranged horizontally; it also includes a first water pipe 308 and a second water pipe 309, the first water pipe 308 is arranged above the first pump wheel 306 and the second pump wheel 307, and the second water pipe 309 is arranged below the first pump wheel 306 and the second pump wheel 307; the first water pipe 308 and the second water pipe 309 are both connected to the right chamber; the upper end of the driving rod 303 is movably connected to the guide Inside the cylinder 302, second gear sections 3031 are provided on both sides of the lower end of the driving rod 303; a first rotating wheel 3061 is fixedly provided on the rotating shaft of the first pump wheel 306, and a second rotating wheel 3062 is fixedly provided on the rotating shaft of the second pump wheel 307; the second gear section 3031 matches the first rotating wheel 3061 and the second rotating wheel 3062; when the driving rod 303 moves along its axis, the first rotating wheel 3061 and the second rotating wheel 3062 can cause the first pump wheel 306 and the second pump wheel 307 to rotate in the opposite direction, thereby completing the pumping of water to the liquid in the right chamber.

[0059] When the primary purification box 4 descends, the driving rod 303 moves in the guide cylinder 302, and the gears on both sides of the lower end of the driving rod 303 mesh with the gears of the first pump wheel 306 and the second pump wheel 307, driving the pump wheels to rotate in the opposite direction. The rotation of the first pump wheel 306 and the second pump wheel 307 draws liquid from one side of the right chamber through the first water pipe 308 and the second water pipe 309, and injects it from the other side, forming a circulating flow of liquid, enhancing the effect of the oxidation reaction, and improving the processing efficiency of the electrical floatation method.

[0060] As a further improvement of this embodiment, the centers of the first sprocket 901 and the second sprocket 902 are on the same horizontal line, and the diameter of the first sprocket 901 is greater than the diameter of the second sprocket 902 .

[0061] The chain 903 forms a triangular motion track through the difference in sprocket diameters and the horizontal alignment of the center of the circle. When the chain 903 drives the collection mechanism to move, the cleaning plate 904 will gradually rise in the process of moving from left to right, and finally lift the collected foam to a position above the liquid surface, so as to effectively send the foam to the sewage outlet 505. This design is not a simple transmission adjustment, but is to achieve the lifting and effective discharge of the foam, and prevent the foam from falling back into the liquid or overflowing.

[0062] Working principle:

[0063] The chain 903 moves under the drive of the sprocket, and the collecting mechanism moves horizontally from left to right and gradually rises along the movement path of the chain 903. The cleaning plate 904 pushes the foam on the liquid surface to the collecting plate 905, and the foam is collected in the space between the collecting plates 905. As the chain 903 rises, the foam is lifted to a position above the liquid surface and discharged through the drain port 505.

[0064] Embodiment 2:

[0065] like Figure 7 As shown, as an improved solution of the above embodiment, this embodiment can solve more problems. A wedge block is provided on each collection plate 905, and the thickness of the wedge block gradually decreases along the collection direction of the collection plate. The wedge block is designed to guide the foam into the collection space and prevent the foam from being pushed back to the liquid surface or overflowing by the cleaning plate 904. When the collection mechanism moves along the liquid surface, the cleaning plate 904 pushes the foam toward the collection plate 905, and the wedge block guides the foam to slide into the collection space along the inclined surface. The angle and intersection of the wedge block are designed to ensure that the foam can smoothly enter the collection space without being pushed back to the liquid surface.

[0066] like Figure 1 As shown, as an improved solution of the present embodiment, the electrochemical sewage treatment device of the present invention further includes an air purification mechanism, which includes a ventilation pipe 7, and the ventilation pipe 7 is connected with a first pipe 701, a second pipe 702 and a sewage pipe 703; the first pipe 701 is connected with the filter box 2, and the second pipe 702 is connected with the right chamber; the sewage pipe 703 is arranged in the sewage outlet 505; one end of the ventilation pipe 7 is connected with a collection tank 704, and the other end of the ventilation pipe 7 is connected with a purifier 8, and the purifier 8 is arranged above the ground.

[0067] The collection tank 704 is used to collect the foam falling from the sewage pipe 703, prevent the foam from overflowing or secondary pollution, and ensure that the foam is effectively collected and processed after the treated gas and liquid are separated. The function of the collection tank 704 can be achieved in another way, that is, using a fan. The function of the fan is to blow the foam and gas upward through forced ventilation and directly send them to the purifier 8 for treatment. Compared with the collection tank 704, the fan can be installed near the purifier 8, saving the space required for the collection tank 704; the fan directly sends the foam and gas into the purifier 8, avoiding the risk of foam accumulation and overflow in the collection tank 704, and improving the processing efficiency; the fan can realize automatic control, adjust the air volume according to the amount of gas and foam generated, and realize a more accurate processing process. The fan can not only process foam, but also be used for the circulation and purification of gas, enhancing the versatility of the system.

[0068] Embodiment 3:

[0069] like Figure 1 As shown, as an improved solution of the above embodiment, this embodiment can solve more problems. A first one-way valve 203 is provided in the first pipeline 701, and a second one-way valve 503 is provided in the second pipeline 702; the first one-way valve 203 and the second one-way valve 503 allow the gas in the filter box 2 and the right chamber to enter the vent pipe 7. When the gas pressure in the filter box 2 and the right chamber is higher than the pressure in the vent pipe 7, the gas pushes open the valve flap of the one-way valve and enters the vent pipe 7 and the purifier 8 through the pipeline. When the pressure in the vent pipe 7 is higher than that in the filter box 2 and the right chamber, the one-way valve is automatically closed to prevent gas backflow.

[0070] like Figure 3 As shown, as an improvement scheme of the present embodiment, a plurality of first anode plates 402 and a plurality of first cathode plates 403 are all arranged on the inner wall of the primary purification box 4, the first anode plates 402 and the first cathode plates 403 are cross-arranged, and a gap is left between the lower ends of the first anode plates 402 and the first cathode plates 403 and the bottom plate of the primary purification box 4.

[0071] There is a gap between the lower ends of the first anode plate 402 and the first cathode plate 403 and the bottom plate of the primary purification box 4 to prevent the electrode plate from directly contacting the bottom of the box, to avoid wear or short circuit caused by contact, and more importantly, to provide a channel for flocculation precipitation. During the electrochemical treatment process, the colloidal particles and pollutants in the water form floccules through electrocoagulation reactions, and these floccules will gradually settle to the bottom of the purification box. If the electrode plate directly contacts the bottom of the box, the precipitated floccules may accumulate under the electrode plate, causing blockage and difficulty in cleaning. The design of the gap ensures that the flocculation precipitation can pass smoothly from under the electrode plate, and flow into the opening 408 at the bottom of the primary purification box 4 along the gap, and finally flow out of the primary purification box 4 through the through hole 3011 and enter the right chamber for subsequent treatment.

[0072] It should be noted that the first anode plate 402 and the first cathode plate 403 are the core components of electrochemical treatment. The anode plate is used to produce oxidants, and the cathode plate is used to produce reductants, which work together to act on pollutants in the sewage. The cross-arrangement and gap design ensure sufficient contact between the sewage and the electrode plates, thereby improving the efficiency of the electrochemical reaction. When the sewage flows through the electrode plates, it can evenly contact the anode and cathode, thereby ensuring the uniformity of the treatment effect.

[0073] Scrapers 401 are arranged on both sides of the primary purification box 4 in contact with the left chamber to prevent the suspended matter and floccules in the sewage from adhering to the side walls of the box when the primary purification box 4 descends, resulting in pollutant residue or blockage. The function of the scrapers 401 is to scrape and remove the attachments on the side walls of the box during the descent of the primary purification box 4, to ensure that all floccules and suspended matter can smoothly enter the right chamber for subsequent treatment, and to avoid the accumulation of pollutants in the purification box, which affects the efficiency of electrochemical treatment.

[0074] Embodiment 4:

[0075] On the basis of the above embodiment, this embodiment provides an ecological toilet, in which the above electrochemical sewage treatment device is integrated under the ecological toilet. The ecological toilet also includes a toilet 1, which is arranged above the filter box 2 and connected to the filter box 2.

[0076] In summary, the scheme of the present invention achieves high treatment efficiency through the combination of electrochemical treatment and linkage mechanism. The electrochemical method uses reactions such as electrocoagulation and electroflotation to quickly remove colloidal impurities, ammonia nitrogen, heavy metals and other pollutants in sewage, and the treatment speed is much higher than that of traditional biological treatment methods. At the same time, the design of the linkage mechanism allows the sewage to flow automatically in the system without manual intervention, further improving the treatment efficiency and ensuring that the sewage meets the discharge or reuse standards in a short time. It is difficult for traditional devices to effectively treat difficult-to-treat pollutants such as ammonia nitrogen and heavy metals, and the scheme of the present invention can effectively remove these stubborn pollutants through electrochemical redox reactions. The strong oxidants (such as hydroxyl radicals) generated during the electrochemical treatment process can completely decompose organic matter and ammonia nitrogen, and heavy metal ions are precipitated and removed by electrocoagulation. In addition, the microbubbles generated by electroflotation can bring suspended matter and flocs to the liquid surface, further improving the pollutant removal rate. The scheme of the present invention adopts a compact structural design, integrates multiple treatment units in a small device, and realizes an automated sewage treatment process through a linkage mechanism. Compared with the complex system of traditional devices, the scheme of the present invention reduces unnecessary mechanical components and pipeline layout, simplifies the system structure, and significantly reduces the floor space.

[0077] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present disclosure. The following points need to be explained: In the accompanying drawings of the embodiments of the present invention, only the structures involved in the embodiments of the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the features in the same embodiment and different embodiments of the present invention can be combined with each other. The above is only an exemplary implementation of the present invention, and is not used to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the attached claims.

Claims

1. An electrochemical sewage treatment device, comprising a filter box (2), wherein a filter screen (201) for separating solid and liquid is provided in the filter box (2), characterized in that: Along the gravity direction of the sewage, an installation box (3) is provided below the filter box (2), a partition (301) is provided inside the installation box (3), and the partition (301) divides the installation box (3) into a left chamber and a right chamber; An outlet (202) communicating with the left chamber is provided on the bottom plate of the filter box (2), and a first-stage purification box (4) is provided in the left chamber. A plurality of first anode plates (402) and a plurality of first cathode plates (403) are provided in the first-stage purification box (4); along a direction perpendicular to the gravity of the sewage, the left side of the first-stage purification box (4) is movably connected to the installation box (3), and the right side of the first-stage purification box (4) is movably connected to the partition (301); a buffer mechanism and a circulating pump water mechanism are provided below the first-stage purification box (4); An opening (408) is provided on the side wall of the primary purification box (4), and a through hole (3011) which can communicate with the opening (408) is provided on the partition (301), so that the sewage in the primary purification box (4) can flow into the right chamber through the opening (408) and the through hole (3011); The right chamber is provided with a plurality of second anode plates (501), a plurality of second cathode plates (502) and a foam removal mechanism; when the sewage in the primary purification box (4) reaches the load limit of the buffer mechanism, the primary purification box (4) moves downward, connects the opening (408) and the through hole (3011), and drives the foam removal mechanism to clean the foam on the liquid surface of the right chamber, while driving the circulating pump mechanism to stir the liquid in the right chamber.

2. The electrochemical sewage treatment device according to claim 1, characterized in that: The foam removal mechanism comprises a through hole provided on the partition (301) and a connecting rod (404) provided on the side wall of the primary purification box (4), the connecting rod (404) extending into the right chamber through the through hole, one end of the connecting rod (404) being connected to the side wall of the primary purification box (4), and the other end of the connecting rod (404) being provided with a vertical rod (405); The right chamber is also provided with a first sprocket (901), a second sprocket (902) and a chain (903) matched with the first sprocket (901) and the second sprocket (902); the first sprocket (901) and the second sprocket (902) are rotatably connected to the inner wall of the right chamber via their respective rotating shafts; a third gear segment (9011) is fixedly provided on the rotating shaft of the first sprocket (901), and a first gear segment (406) matched with the third gear segment (9011) is provided on the connecting rod (404); when the primary purification box (4) moves back and forth, the first sprocket (901) is rotated by the connecting rod (404), the vertical rod (405) and the first gear segment (406) on the vertical rod (405), thereby driving the chain (903) to rotate back and forth; The chain (903) is divided into an upper chain and a lower chain, and a collecting mechanism is movably connected to the lower chain; when the chain (903) rotates, the collecting mechanism can clear the foam on the liquid surface of the right chamber along the movement path of the chain (903).

3. The electrochemical sewage treatment device according to claim 2, characterized in that: The collecting mechanism comprises a cleaning plate (904) perpendicular to the liquid surface in the right chamber and two collecting plates (905), each of the collecting plates (905) being vertically mounted on the cleaning plate (904), a connecting plate (906) being provided above the cleaning plate (904), a locking rod (9061) being provided on the connecting plate (906), the locking rod (9061) enabling the connecting plate (906) to be hinged to the chain (903); a collecting space is formed between the two collecting plates (905) for preventing the foam from being squeezed out by the cleaning plate; a sewage outlet (505) is provided on the side wall of the right chamber.

4. The electrochemical sewage treatment device according to claim 3, characterized in that: The buffer mechanism comprises a guide cylinder (302) arranged at the lower side of the primary purification box (4), a driving rod (303) is arranged inside the guide cylinder (302), a fixing cylinder is arranged on the bottom plate of the left chamber, a spring (304) connected to each other is arranged between the guide cylinder (302) and the fixing cylinder, and the spring (304) is sleeved on the outer wall of the driving rod (303); when the spring (304) is in an initial state, the opening (408) is not connected to the through hole (3011).

5. The electrochemical sewage treatment device according to claim 4, characterized in that: The circulating water pump mechanism comprises a pump body (305) arranged on the bottom plate of the left chamber, wherein a first pump wheel (306) and a second pump wheel (307) arranged horizontally are arranged in the pump body (305); and further comprises a first water pipe (308) and a second water pipe (309), wherein the first water pipe (308) is arranged above the first pump wheel (306) and the second pump wheel (307), and the second water pipe (309) is arranged below the first pump wheel (306) and the second pump wheel (307); The first water pipe (308) and the second water pipe (309) are both connected to the right chamber; the upper end of the driving rod (303) is movably connected to the guide cylinder (302), and the lower end of the driving rod (303) is provided with a second gear section (3031) on both sides; a first rotating wheel (3061) is fixedly provided on the rotating shaft of the first pump wheel (306), and a second rotating wheel (3062) is fixedly provided on the rotating shaft of the second pump wheel (307); the second gear section (3031) matches the first rotating wheel (3061) and the second rotating wheel (3062); when the driving rod (303) moves along its axis, the first pump wheel (306) and the second pump wheel (307) can generate reverse rotation through the first rotating wheel (3061) and the second rotating wheel (3062), thereby completing water pumping for the liquid in the right chamber.

6. The electrochemical sewage treatment device according to claim 2, characterized in that: The centers of the first sprocket (901) and the second sprocket (902) are on the same horizontal line, and the diameter of the first sprocket (901) is greater than the diameter of the second sprocket (902).

7. The electrochemical sewage treatment device according to claim 3, characterized in that: The two collecting plates (905) are each provided with a wedge-shaped block, and the thickness of the wedge-shaped block gradually decreases along the collecting direction of each collecting plate (905).

8. The electrochemical sewage treatment device according to claim 5, characterized in that: The electrochemical sewage treatment device further comprises an air purification mechanism, the air purification mechanism comprising a ventilation pipe (7), the ventilation pipe (7) being connected to a first pipe (701), a second pipe (702) and a sewage pipe (703); the first pipe (701) being connected to the filter box (2), the second pipe (702) being connected to the right chamber; the sewage pipe (703) being arranged in the sewage outlet (505); one end of the ventilation pipe (7) being connected to a collection tank (704), the other end of the ventilation pipe (7) being connected to a purifier (8), the purifier (8) being arranged above the ground; A plurality of first anode plates (402) and a plurality of first cathode plates (403) are provided on the inner wall of the first-stage purification box (4), the first anode plates (402) and the first cathode plates (403) are arranged crosswise, and a gap is left between the lower ends of the first anode plates (402) and the first cathode plates (403) and the bottom plate of the first-stage purification box (4).

9. An electrochemical sewage treatment device according to claim 8, characterized in that: A first one-way valve (203) is provided in the first pipeline (701), and a second one-way valve (503) is provided in the second pipeline (702); the first one-way valve (203) and the second one-way valve (503) allow the gas in the filter box (2) and the right chamber to enter the ventilation pipe (7).

10. An ecological toilet, comprising the electrochemical sewage treatment device according to any one of claims 1 to 9, characterized in that: The ecological toilet also comprises a toilet (1), wherein the toilet (1) is arranged above the filter box (2) and is connected to the filter box (2).

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