Sewage treatment device based on electrocatalytic oxidation technology

Abstract

The invention relates to the technical field of electrocatalytic oxidation, in particular to an electrocatalytic oxidation technology-based sewage treatment device which comprises an outer box, side boxes are fixedly arranged on the two sides of the outer box, aeration assemblies are arranged on the two sides of the outer box in a penetrating manner, spraying parts are embedded into one sides of the two side boxes, and an electrocatalytic assembly is arranged in the outer box; an impurity removal assembly is arranged at the upper end in the outer box, a fixed shell is fixedly connected to one side of the outer box, and one end of the impurity removal assembly is arranged in the fixed shell. By arranging the impurity removal assembly, floating foam removal and porous net cleaning are synchronously carried out, the situation that the cleaning effect is reduced due to the fact that the porous net is blocked can be effectively avoided, the adverse effect of floating foam and suspended solids on sewage treatment is reduced, the sewage treatment efficiency is further improved, and by arranging the aeration assembly and the electro-catalysis assembly, the sewage treatment efficiency is improved. Attached suspended matters on the surfaces of the positive plate and the negative plate can be reduced, and the effect of removing suspended impurities by the porous net can be improved.

Description

Technical Field

[0001] This invention relates to the field of electrocatalytic oxidation technology, and in particular to a wastewater treatment device based on electrocatalytic oxidation technology. Background Technology

[0002] Electrocatalytic oxidation technology is an advanced oxidation technology that efficiently degrades organic pollutants in wastewater through electrochemical reactions. It utilizes strong oxidants such as hydroxyl radicals generated on the electrode surface to directly decompose pollutants. It is particularly suitable for industrial wastewater with high salinity, high COD, and recalcitrant degradation. Its core advantages lie in its rapid and thorough reaction, the absence of added chemical agents, and its ability to be coupled with biological treatment processes. It has become one of the key technologies for industrial wastewater treatment. However, in the electrocatalytic oxidation treatment of dyeing and printing wastewater, due to the high concentration of surfactants, detergents, and dye auxiliaries, fine white foam forms during aeration or stirring. This foam is highly accumulative and difficult to break naturally. The Chinese patent with authorized publication number CN117902691B removes foam by moving the cleaning frame. However, in actual use, when the amount of foam and scum is large, the filter frame is prone to clogging during the filtration process, resulting in poor foam and scum removal. At the same time, during the electrocatalytic oxidation process, suspended impurities will appear in the wastewater, and the electrodes of the device are easily attached to the suspended impurities, which reduces the efficiency of wastewater treatment. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of easy clogging of filter frames and easy attachment of suspended impurities on electrodes in the prior art, and to propose a wastewater treatment device based on electrocatalytic oxidation technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a wastewater treatment device based on electrocatalytic oxidation technology, comprising an outer casing, side boxes fixedly arranged on both sides of the outer casing, the lower ends of the two sets of side boxes being connected to an external suction device through pipes, aeration components being arranged through both sides of the outer casing, a spray unit being embedded on one side of each of the two sets of side boxes, the two sets of spray units being connected to an external water supply structure, an electrocatalytic component being arranged inside the outer casing, a dirt removal component being arranged at the upper end of the outer casing, a fixed shell being fixedly connected to one side of the outer casing, and one end of the dirt removal component being arranged inside the fixed shell; The impurity removal component includes a horizontally moving part disposed between the two sets of side boxes. Two sets of fixing frames are disposed on the lower surface of the horizontally moving part. A collection component is fixedly disposed at the end of the two sets of fixing frames. A mounting box is disposed at one end of the collection component, and the mounting box is slidably connected to the inner wall of one side of the fixed housing. Two sets of filter components are symmetrically disposed between the mounting box and the inner wall of one side of the outer box, and the two sets of filter components are respectively disposed at intervals on both sides of the collection component.

[0005] Preferably, the collection assembly includes a collection frame fixedly connected to the ends of the two sets of fixed frames, and the collection frame is fixedly connected to one side of the mounting box. Multiple sets of first spring telescopic rods and second spring telescopic rods are fixedly connected at intervals on both sides inside the collection frame. A fixed ball is fixedly connected to the upper end of each set of first spring telescopic rods, and the height of the fixed ball is higher than the height of the upper surface of the collection frame.

[0006] Preferably, a fixing plate is fixedly connected to the lower end of the collection frame near the edge, and the two ends of the fixing plate are longer than the width of the collection frame. A sliding plate is slidably provided at the lower end of the fixing plate. A base plate is fixedly connected to the lower end of multiple sets of second spring telescopic rods, and the base plate is in contact with the collection frame. The height of the base plate is lower than the liquid level of the sewage inside the collection frame.

[0007] Preferably, the filter assembly includes a motor fixedly connected inside the mounting box. The motor output end passes through the mounting box and one side of the outer casing and is fixedly connected to a connecting plate. The other end of the connecting plate is fixedly connected to a support rod, and the support rod is slidably embedded in one side of the outer casing. Both the motor output end and the outer surface of the support rod are fixedly connected to baffles, and the two sets of baffles respectively contact the inner walls of both sides of the outer casing. One side of the outer casing and the two sets of side boxes are provided with clearance holes for the motor to move, and the other side of the outer casing and the two sets of side boxes are provided with clearance grooves for the support rod to move.

[0008] Preferably, the upper and lower ends of the connecting plate are rotatably connected to mounting frames, and the inner sides of the two sets of mounting frames are fixedly connected to perforated mesh. The upper and lower ends of the connecting plate are fixedly connected to multiple sets of limiting rods, and the multiple sets of limiting rods are respectively engaged with the two sides of the two sets of mounting frames. Multiple sets of elastic ropes are fixedly connected between the two sets of mounting frames and the connecting plate, and the multiple sets of elastic ropes are respectively arranged on both sides of the connecting plate.

[0009] Preferably, the electrocatalytic component includes fixing strips fixedly connected inside the outer casing, and two sets of fixing strips are spaced apart. Multiple sets of positive and negative electrode plates are rotatably connected to the outer surfaces of the two sets of fixing strips, and the multiple sets of positive and negative electrode plates are staggered. Both the positive and negative electrode plates are electrically connected to an external power supply device through flexible cables. Two sets of push-pull components are symmetrically arranged inside the outer casing, and the two sets of push-pull components are respectively connected through the multiple sets of positive and negative electrode plates.

[0010] Preferably, the push-pull assembly includes an electric telescopic rod that is fixedly connected to both sides of the outer casing. Fixed tubes are fixedly connected to the inner walls of both sides of the outer casing. A movable rod is slidably connected between the two sets of fixed tubes. One end of the electric telescopic rod is fixedly connected to the movable rod. Multiple sets of rotating rings are rotatably connected to the outer surface of the movable rod. The multiple sets of rotating rings are arranged in pairs on both sides of the positive electrode plate. In another push-pull assembly, multiple sets of rotating rings are arranged in pairs on both sides of the negative electrode plate.

[0011] Preferably, the aeration assembly includes a connecting pipe fixedly connected to one side of the outer casing, with one end of the connecting pipe connected to an external air supply device. Rotating components are provided through both sides of the outer casing, and multiple sets of rotating components are provided at intervals, with each set of rotating components embedded in the connecting pipe.

[0012] Preferably, the rotating component includes a rotating tube that is rotatably connected to the connecting tube. One end of the rotating tube passes through one side of the outer box and is rotatably connected to the inner wall of the other side of the outer box. Multiple sets of aeration discs are fixedly connected to the outer surface of the rotating tube. A T-shaped rod is fixedly connected to one end of the rotating tube. The T-shaped rod passes through and is rotatably connected to one side of the outer box. A torsion spring is fixedly connected between the T-shaped rod and the outer box. A deflection strip is fixedly connected to one end of the rotating tube near the edge, and the deflection strip is arranged on the moving path of the sliding plate.

[0013] Preferably, each of the multiple sets of deflection bars is fixedly connected to a push rod on one side, and the push rod is in contact with the adjacent deflection bar, and an elastic pull rope is fixedly connected between two adjacent sets of deflection bars.

[0014] Compared with existing technologies, the advantages of this invention are: 1. By setting up the impurity removal component, it is possible to effectively remove the foam and near-surface suspended impurities on the surface of the wastewater during the electrocatalytic oxidation wastewater treatment process, reducing the contact between suspended impurities and the electrode plates, and at the same time reducing the obstruction of oxygen flow by the foam, thereby improving the efficiency of wastewater treatment. During the cleaning process, the removal of foam and the cleaning of the porous screen are carried out simultaneously, which can effectively avoid the situation where the porous screen is blocked and the cleaning effect is reduced, reducing the adverse effects of foam and suspended solids on wastewater treatment, and further improving the efficiency of wastewater treatment. 2. By setting up aeration components and electrocatalytic components, the aeration discs rotate back and forth. By intermittently adjusting the tilt direction of the positive and negative plates, not only can the adhesion of suspended matter on the surface of the positive and negative plates be reduced through bubbles, thus improving wastewater treatment efficiency, but the effect of the porous mesh in removing suspended impurities can also be improved. 3. The spray unit and impurity removal components enable the collection box to be automatically cleaned when it moves into the side box, eliminating the need for manual cleaning and making it easy to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 2 This is a cross-sectional view of the outer casing and side casing structure of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 3 This is a schematic diagram of the outer casing, spray section, horizontally moving section, and fixed shell structure of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention. Figure 4 This is a schematic diagram of the impurity removal component and fixed shell structure of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 5 This is a schematic diagram showing the disassembled structure of the collection component of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 6 This is a schematic diagram of the filter component structure of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 7 For the present invention Figure 6 Enlarged detail image of point A in the middle; Figure 8 This is a schematic diagram of the aeration component and electrocatalytic component of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 9 For the present invention Figure 8 Enlarged detail image of section B in the middle; Figure 10 For the present invention Figure 8 Enlarged detail image of section C in the middle; Figure 11 This is a schematic diagram showing the disassembled structure of the electrocatalytic component of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention; Figure 12 This is a schematic diagram showing the disassembled structure of the movable rod and rotating ring of a wastewater treatment device based on electrocatalytic oxidation technology proposed in this invention.

[0016] In the diagram: 1. Outer casing; 2. Side casing; 3. Aeration assembly; 31. Connecting pipe; 32. Rotating component; 321. Rotating pipe; 322. Aeration disc; 323. T-shaped rod; 324. Torsion spring; 325. Deflecting bar; 326. Push rod; 33. Elastic pull rope; 4. Spraying section; 5. Impurity removal assembly; 51. Horizontal moving part; 52. Fixing frame; 53. Collection assembly; 531. Collection frame; 532. First spring telescopic rod; 533. Fixing ball; 534. Fixing plate; 535. Sliding plate; 5 36. Second spring telescopic rod; 537. Base plate; 54. Filter assembly; 541. Motor; 542. Baffle; 543. Connecting plate; 544. Support rod; 545. Mounting frame; 546. Perforated mesh; 547. Limiting rod; 548. Elastic rope; 55. Mounting box; 6. Electrocatalytic assembly; 61. Push-pull assembly; 611. Electric telescopic rod; 612. Fixing tube; 613. Movable rod; 614. Rotating ring; 62. Fixing strip; 63. Positive electrode plate; 64. Negative electrode plate; 7. Fixed housing. Detailed Implementation

[0017] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0018] Example Reference Figures 1-12 A wastewater treatment device based on electrocatalytic oxidation technology includes an outer box 1, with side boxes 2 fixedly installed on both sides of the outer box 1. The lower ends of the two side boxes 2 are connected to an external suction device through pipes. Aeration components 3 are installed through both sides of the outer box 1. Spray sections 4 are embedded on one side of each of the two side boxes 2. Both spray sections 4 are connected to an external water supply structure. An electrocatalytic component 6 is installed inside the outer box 1. A dirt removal component 5 is installed at the upper end of the outer box 1. A fixed shell 7 is fixedly connected to one side of the outer box 1, and one end of the dirt removal component 5 is installed inside the fixed shell 7. An inlet pipe is fixedly installed at the upper end of the outer box 1. The outer box 1 is used to store wastewater. The aeration components 3 are used for aeration. The dirt removal component 5 is used to collect foam and suspended impurities on the surface of the wastewater inside the outer box 1. The spray sections 4 are used to clean the foam and suspended impurities inside the dirt removal component 5. The side boxes 2 are used to collect the cleaned impurities and sprayed wastewater. The impurity removal component 5 includes a horizontally moving part 51 disposed between two sets of side boxes 2. Two sets of fixing frames 52 are disposed on the lower surface of the horizontally moving part 51. A collection component 53 is fixedly disposed at the end of the two sets of fixing frames 52. A mounting box 55 is disposed at one end of the collection component 53, and the mounting box 55 is slidably connected to the inner wall of one side of the fixed housing 7. Two sets of filter components 54 are symmetrically disposed between the mounting box 55 and the inner wall of one side of the outer box 1. The two sets of filter components 54 are respectively spaced apart on both sides of the collection component 53. The horizontally moving part 51 is used to drive the fixing frames 52, the collection components 53 and the mounting box 55 to move. The two sets of filter components 54 are used to collect foam and suspended impurities on the surface of sewage. The filter components 54 are used to filter out impurities in sewage.

[0019] The collection component 53 includes a collection frame 531 fixedly connected to the ends of two sets of fixing brackets 52, and the collection frame 531 is fixedly connected to one side of the mounting box 55. Multiple sets of first spring telescopic rods 532 and second spring telescopic rods 536 are fixedly connected at intervals on both sides inside the collection frame 531. A fixed ball 533 is fixedly connected to the upper end of each set of first spring telescopic rods 532, and the height of the fixed ball 533 is higher than the height of the upper surface of the collection frame 531. When the filter component 54 rotates, it will first collide with the fixed ball 533, and then the first spring telescopic rod 532 will retract and collide with the collection frame 531. The surface of the fixed ball 533 is arc-shaped, which can reduce the resistance when the filter component 54 moves.

[0020] A fixing plate 534 is fixedly connected to the lower end of the collection frame 531 near the edge, and the two ends of the fixing plate 534 are longer than the width of the collection frame 531. A sliding plate 535 is slidably provided at the lower end of the fixing plate 534. The sliding plate 535 and the fixing plate 534 are slidably connected by a T-shaped slider to prevent the sliding plate 535 from separating from the fixing plate 534. A base plate 537 is fixedly connected to the lower end of multiple sets of second spring telescopic rods 536, and the base plate 537 is in contact with the collection frame 531. The height of the base plate 537 is lower than the liquid level of the sewage inside the collection frame 531. A sealing strip is provided at the lower end of the collection frame 531. When the base plate 537 moves in the sewage, under the action of the tension of the second spring telescopic rods 536 and the buoyancy of the sewage, the base plate 537 will be in close contact with the collection frame 531 to prevent sewage from entering the interior of the collection frame 531.

[0021] The filter assembly 54 includes a motor 541 fixedly connected inside the mounting box 55. The output end of the motor 541 passes through the mounting box 55 and one side of the outer casing 1 and is fixedly connected to a connecting plate 543. The other end of the connecting plate 543 is fixedly connected to a support rod 544, and the support rod 544 is slidably embedded in one side of the outer casing 1. Both the output end of the motor 541 and the outer surface of the support rod 544 are fixedly connected to baffles 542, and the two sets of baffles 542 respectively contact the inner walls of both sides of the outer casing 1. The outer casing 1 and the two sets of side boxes 2 are provided with clearance holes for the movement of the motor 541 on one side, and the outer casing 1 and the two sets of side boxes 2 are provided with clearance grooves for the movement of the support rod 544 on the other side. The two sets of baffles 542 can limit the position of the connecting plate 543 to prevent the connecting plate 543 from swaying left and right. The support rod 544 is used to support the connecting plate 543. When the mounting box 55 moves, it can drive the connecting plate 543 to move together.

[0022] The upper and lower ends of the connecting plate 543 are rotatably connected to mounting frames 545. Perforated mesh 546 is fixedly connected to the inner side of both sets of mounting frames 545. Multiple sets of limiting rods 547 are fixedly connected to the upper and lower ends of the connecting plate 543, and the multiple sets of limiting rods 547 are movably engaged with the two sides of the two sets of mounting frames 545 respectively. Multiple sets of elastic ropes 548 are fixedly connected between the two sets of mounting frames 545 and the connecting plate 543, and the multiple sets of elastic ropes 548 are respectively set on both sides of the connecting plate 543. The setting of the limiting rods 547 makes the mounting frame 545 only able to rotate to one side, and the elastic ropes 548 are used to pull the mounting frame 545 to reset.

[0023] The electrocatalytic component 6 includes fixing strips 62 fixedly connected inside the outer casing 1, and two sets of fixing strips 62 are spaced apart. Multiple sets of positive electrode plates 63 and negative electrode plates 64 are rotatably connected to the outer surfaces of the two sets of fixing strips 62, and the multiple sets of positive electrode plates 63 and negative electrode plates 64 are staggered. Both positive electrode plates 63 and negative electrode plates 64 are electrically connected to external power supply equipment through flexible cables. Two sets of push-pull components 61 are symmetrically arranged inside the outer casing 1. The two sets of push-pull components 61 are respectively connected through multiple sets of positive electrode plates 63 and multiple sets of negative electrode plates 64. The push-pull components 61 are used to adjust the tilt direction of the positive electrode plates 63 and negative electrode plates 64.

[0024] The push-pull assembly 61 includes an electric telescopic rod 611 that is fixedly connected to both sides of the outer casing 1. Fixed tubes 612 are fixedly connected to the inner walls of both sides of the outer casing 1. A movable rod 613 is slidably connected between the two sets of fixed tubes 612. One end of the electric telescopic rod 611 is fixedly connected to the movable rod 613. Multiple sets of rotating rings 614 are rotatably connected to the outer surface of the movable rod 613. The multiple sets of rotating rings 614 are arranged in pairs on both sides of the positive electrode plate 63. In another push-pull assembly 61, multiple sets of rotating rings 614 are arranged in pairs on both sides of the negative electrode plate 64. The electric telescopic rod 611 can drive the movable rod 613 to move between the two sets of fixed tubes 612, so that the two sets of rotating rings 614 can push the positive electrode plate 63 and the negative electrode plate 64 to deflect with the movement of the movable rod 613, thereby controlling the multiple sets of positive electrode plates 63 and negative electrode plates 64 to tilt to the left or right.

[0025] The aeration component 3 includes a connecting pipe 31 fixedly connected to one side of the outer casing 1, and one end of the connecting pipe 31 is connected to an external air supply device. Rotating components 32 are provided through both sides of the outer casing 1, and multiple sets of rotating components 32 are provided at intervals. All sets of rotating components 32 are embedded in the connecting pipe 31. The connecting pipe 31 is used to supply gas to flow into the rotating components 32, and the rotating components 32 are used for aeration.

[0026] The rotating component 32 includes a rotating tube 321 that is rotatably connected to the connecting tube 31. One end of the rotating tube 321 passes through one side of the outer casing 1 and is rotatably connected to the inner wall of the other side of the outer casing 1. Multiple aeration discs 322 are fixedly connected to the outer surface of the rotating tube 321. A T-shaped rod 323 is fixedly connected to one end of the rotating tube 321. The T-shaped rod 323 passes through and is rotatably connected to one side of the outer casing 1. A torsion spring 324 is fixedly connected between the T-shaped rod 323 and the outer casing 1. A deflection strip 325 is fixedly connected to one end of the rotating tube 321 near the edge, and the deflection strip 325 is arranged on the moving path of the sliding plate 535. The aeration discs 322 can discharge fine aeration fluid. The air bubbles enable aeration, which increases the reaction rate of the positive electrode plate 63 and the negative electrode plate 64, thereby improving the wastewater treatment efficiency. When the sliding plate 535 moves, it pushes the deflection bar 325 to deflect, causing multiple sets of aeration discs 322 to deflect. As the sliding plate 535 continues to push, the deflection bar 325 passes under the sliding plate 535. Under the elastic force of the torsion spring 324, the rotating pipe 321 and the aeration disc 322 can be reset, thereby enabling the aeration disc 322 to reciprocate, expanding the aeration range of the aeration disc 322, reducing the aeration dead zone, and promoting the contact between wastewater and the electrode plates.

[0027] Each of the multiple deflection bars 325 has a push rod 326 fixedly connected to one side, and the push rod 326 contacts the adjacent deflection bar 325. An elastic pull rope 33 is fixedly connected between two adjacent deflection bars 325. When one deflection bar 325 rotates and moves closer to another deflection bar 325, the push rod 326 will push the other deflection bar 325 to deflect as well. When one deflection bar 325 rotates in the opposite direction and moves away from another deflection bar 325, the other deflection bar 325 will also rotate in the opposite direction due to the pull of the elastic pull rope 33.

[0028] In this invention, during use, a fixed amount of dyeing wastewater is introduced into the outer casing 1. An external power supply energizes the positive electrode plate 63 and the negative electrode plate 64, allowing the wastewater in contact with them to be purified. During the process, foam and suspended impurities continuously appear on the surface of the wastewater. The horizontal moving part 51 causes the fixing frame 52, the collection assembly 53, the filter assembly 54, and the mounting box 55 to reciprocate between the two sets of side casings 2. During this process, when the collection assembly 53 moves to the right, the motor 541 causes the connecting plate 543 in the forward direction of the collection frame 531 to rotate counterclockwise. When the collecting component 53 moves to the left, the motor 541 causes the connecting plate 543 in the forward direction of the collecting frame 531 to rotate clockwise. Since the lower-positioned perforated mesh 546 is immersed in the sewage, during rotation, the two sets of perforated meshes 546 can filter and lift the foam on the sewage surface and suspended impurities near the surface. As the mounting frame 545 rotates, the perforated mesh 546 first impacts with multiple sets of fixed balls 533, shaking the foam and impurities attached to the perforated mesh 546 into the collecting frame 531 for storage. Subsequently, the first spring telescopic rod 532 is compressed, and the perforated mesh 546 continues to impact with the collecting frame 531. The impact of the collection frame 531 causes the sliding plate 535 to rotate on the connecting plate 543 until the mounting frame 545 separates from the collection frame 531. Then, under the pull of the elastic rope 548, the mounting frame 545 can reset and re-engage with the limiting rod 547. This effectively removes foam and near-surface suspended impurities from the surface of wastewater during the electrocatalytic oxidation wastewater treatment process, reducing the contact between suspended impurities and the electrode plates, and also reducing the obstruction of oxygen flow by the foam, thereby improving the efficiency of wastewater treatment. When the collection frame 531 moves into the side box 2, because the fixing plate 534 is longer than the collection frame 531, the sliding plate... 535 will not affect the entry of the collection frame 531 into the side box 2. Then, water is sprayed onto the side box 2, the perforated mesh 546 and the mounting frame 545 through the spray unit 4. Under the weight of the impurities and water inside the collection frame 531 and the bottom plate 537, the bottom plate 537 will separate from the collection frame 531. The rinsing of the water can collect the foam and impurities on the collection frame 531 and the perforated mesh 546 into the side box 2. After cleaning, the spray unit 4 will stop spraying water. After most of the water inside the collection frame 531 is discharged, the bottom plate 537 will come into contact with the collection frame 531 again. The side box 2 can be cleaned by the external suction equipment. When the collection frame 531 moves back and forth, the sliding plate 535 is pushed to one end of the fixed plate 534. The sliding plate 535 then pushes multiple sets of deflection bars 325 to deflect. Under the pushing force of the sliding plate 535 and the elastic force of the torsion spring 324, the rotating pipe 321 and the aeration disc 322 can reciprocate, thereby expanding the aeration range, reducing dead zones, promoting contact between wastewater and the electrode plates, and improving wastewater treatment efficiency. The push rod 326 and the elastic pull rope 33 further facilitate the reciprocating movement of the multiple sets of deflection bars 325. The deflector bars 325 can move together, thereby increasing the oscillation frequency of the aeration discs 322, promoting the mixing of wastewater inside the outer casing 1, and preventing the formation of anaerobic zones. During wastewater treatment, the electric telescopic rod 611 causes multiple sets of positive electrode plates 63 and negative electrode plates 64 to tilt intermittently to the left or right. When the positive electrode plates 63 and negative electrode plates 64 are tilted, the dense microbubbles generated by the multiple sets of aeration discs 322 will form a continuous shear force on the tilted surfaces of the positive electrode plates 63 and negative electrode plates 64 during their ascent, which can... The invention effectively removes deposits from the surfaces of the positive and negative electrode plates 63 and 64, causing them to move towards the wastewater surface. Because the tilt angles of the positive and negative electrode plates 63 and 64 are adjustable, both sides of the plates can be cleaned by air bubbles, reducing the content of suspended impurities in the wastewater. This invention effectively removes foam and suspended impurities near the surface of the wastewater. During the cleaning process, the removal of foam and the cleaning of the mounting frame 545 are carried out simultaneously, effectively preventing clogging of the mounting frame 545 and reducing the cleaning effect. This minimizes the adverse effects of foam and suspended matter on wastewater treatment, improving wastewater treatment efficiency. It can automatically clean the collection frame 531 without manual intervention, making it easy to use. Through the reciprocating rotation of the aeration disc 322 and the adjustment of the tilt direction of the positive and negative electrode plates 63 and 64, not only can the adhesion of suspended matter on the surfaces of the positive and negative electrode plates 63 and 64 be reduced, improving wastewater treatment efficiency, but the effect of the mounting frame 545 in removing suspended impurities can also be enhanced.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater treatment device based on electrocatalytic oxidation technology, comprising an outer casing (1), characterized in that, The outer box (1) is fixedly provided with side boxes (2) on both sides. The lower ends of the two sets of side boxes (2) are connected to the external suction equipment through pipes. The outer box (1) is provided with aeration components (3) through both sides. The two sets of side boxes (2) are embedded with a spray section (4) on one side. The two sets of spray sections (4) are connected to the external water supply structure. The outer box (1) is provided with an electrocatalytic component (6). The outer box (1) is provided with a dirt removal component (5) at the upper end of the outer box (1). The outer box (1) is fixedly connected with a fixed shell (7) on one side. One end of the dirt removal component (5) is located inside the fixed shell (7). The impurity removal component (5) includes a horizontally moving part (51) disposed between the two sets of side boxes (2). Two sets of fixing frames (52) are provided on the lower surface of the horizontally moving part (51). A collection component (53) is fixedly disposed at the end of the two sets of fixing frames (52). A mounting box (55) is provided at one end of the collection component (53). The mounting box (55) is slidably connected to the inner wall of one side of the fixed housing (7). Two sets of filter components (54) are symmetrically disposed between the mounting box (55) and the inner wall of one side of the outer box (1). The two sets of filter components (54) are respectively disposed at intervals on both sides of the collection component (53).

2. The wastewater treatment device based on electrocatalytic oxidation technology according to claim 1, characterized in that, The collection component (53) includes a collection frame (531) fixedly connected to the ends of the two sets of fixing frames (52), and the collection frame (531) is fixedly connected to one side of the mounting box (55). Multiple sets of first spring telescopic rods (532) and second spring telescopic rods (536) are fixedly connected at intervals on both sides inside the collection frame (531). A fixed ball (533) is fixedly connected to the upper end of each set of first spring telescopic rods (532), and the height of the fixed ball (533) is higher than the height of the upper surface of the collection frame (531).

3. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 2, characterized in that, A fixing plate (534) is fixedly connected to the lower end of the collection frame (531) near the edge, and the two ends of the fixing plate (534) are longer than the width of the collection frame (531). A sliding plate (535) is slidably provided at the lower end of the fixing plate (534). A base plate (537) is fixedly connected to the lower end of multiple sets of second spring telescopic rods (536), and the base plate (537) is in contact with the collection frame (531). The height of the base plate (537) is lower than the liquid level of the sewage inside the collection frame (531).

4. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 1, characterized in that, The filter assembly (54) includes a motor (541) fixedly connected inside the mounting box (55). The output end of the motor (541) passes through the mounting box (55) and one side of the outer box (1) and is fixedly connected to a connecting plate (543). The other end of the connecting plate (543) is fixedly connected to a support rod (544), and the support rod (544) is slidably embedded in one side of the outer box (1). The output end of the motor (541) and the outer surface of the support rod (544) are both fixedly connected to baffles (542), and the two sets of baffles (542) respectively contact the inner walls of the two sides of the outer box (1). The outer box (1) and the two sets of side boxes (2) are provided with clearance holes for the movement of the motor (541), and the other side of the outer box (1) and the two sets of side boxes (2) are provided with clearance grooves for the movement of the support rod (544).

5. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 4, characterized in that, The upper and lower ends of the connecting plate (543) are rotatably connected to the mounting frames (545). The inner sides of the two sets of mounting frames (545) are fixedly connected to perforated mesh (546). The upper and lower ends of the connecting plate (543) are fixedly connected to multiple sets of limiting rods (547). The multiple sets of limiting rods (547) are respectively engaged with the two sides of the two sets of mounting frames (545). The two sets of mounting frames (545) and the connecting plate (543) are fixedly connected to multiple sets of elastic ropes (548). The multiple sets of elastic ropes (548) are respectively arranged on both sides of the connecting plate (543).

6. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 1, characterized in that, The electrocatalytic component (6) includes a fixing strip (62) fixedly connected inside the outer casing (1), and two sets of fixing strips (62) are spaced apart. Multiple sets of positive electrode plates (63) and negative electrode plates (64) are rotatably connected to the outer surfaces of the two sets of fixing strips (62), and the multiple sets of positive electrode plates (63) and negative electrode plates (64) are staggered. Both the positive electrode plates (63) and negative electrode plates (64) are electrically connected to external power supply equipment through flexible cables. Two sets of push-pull components (61) are symmetrically arranged inside the outer casing (1), and the two sets of push-pull components (61) are respectively connected through the multiple sets of positive electrode plates (63) and the multiple sets of negative electrode plates (64).

7. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 6, characterized in that, The push-pull assembly (61) includes an electric telescopic rod (611) that is fixedly connected to both sides of the outer box (1). Fixed tubes (612) are fixedly connected to the inner walls of both sides of the outer box (1). A movable rod (613) is sealed and slidably connected between the two sets of fixed tubes (612). One end of the electric telescopic rod (611) is fixedly connected to the movable rod (613). Multiple sets of rotating rings (614) are rotatably connected to the outer surface of the movable rod (613). The multiple sets of rotating rings (614) are arranged in pairs on both sides of the positive electrode plate (63). The multiple sets of rotating rings (614) in the other push-pull assembly (61) are arranged in pairs on both sides of the negative electrode plate (64).

8. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 3, characterized in that, The aeration component (3) includes a connecting pipe (31) fixedly connected to one side of the outer box (1), and one end of the connecting pipe (31) is connected to an external air supply device. Rotating components (32) are provided through both sides of the outer box (1), and multiple sets of rotating components (32) are provided at intervals. All sets of rotating components (32) are embedded in the connecting pipe (31).

9. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 8, characterized in that, The rotating component (32) includes a rotating tube (321) that is embedded and rotatably connected to the connecting tube (31). One end of the rotating tube (321) passes through one side of the outer box (1) and is rotatably connected to the inner wall of the other side of the outer box (1). Multiple sets of aeration discs (322) are fixedly connected to the outer surface of the rotating tube (321). A T-shaped rod (323) is fixedly connected to one end of the rotating tube (321). The T-shaped rod (323) is rotatably connected to one side of the outer box (1). A torsion spring (324) is fixedly connected between the T-shaped rod (323) and the outer box (1). A deflection strip (325) is fixedly connected to one end of the rotating tube (321) near the edge, and the deflection strip (325) is set on the moving path of the sliding plate (535).

10. A wastewater treatment device based on electrocatalytic oxidation technology according to claim 9, characterized in that, Each of the multiple sets of deflection bars (325) is fixedly connected to a push rod (326) on one side, and the push rod (326) is in contact with the adjacent deflection bar (325). An elastic pull rope (33) is fixedly connected between two adjacent sets of deflection bars (325).

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