Electrochemical catalytic oxidation device

Abstract

This utility model relates to the field of electrochemical catalysis technology, and more particularly to an electrochemical catalytic oxidation device, including a base plate. Two side sealing plates are fixedly installed on the top of the base plate, and a reaction sleeve is fixedly connected between the two side sealing plates. A sealing partition is fixedly connected to the inner wall of the reaction sleeve, dividing the reaction sleeve into an electrolysis chamber and a circulating drainage chamber. A filter sleeve is rotatably connected to the inner wall of the sealing partition. Several staggered conical holes are opened through the outer surface of the filter sleeve. An electrolytic cathode and an electrolytic anode are fixedly connected to the outer wall of the sealing partition. Both the outer walls of the electrolytic cathode and the electrolytic anode are fitted with annular nozzles. The device is driven by a drive motor that rotates the filter sleeve at high speed. Impurities are thrown out tangentially by centrifugal force, avoiding blockage of the conical holes. The conical holes are designed with a smaller inner diameter and a larger outer diameter, which automatically peels off the adhering substances using fluid shear force, reducing manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical catalysis technology, and in particular to an electrochemical catalytic oxidation device. Background Technology

[0002] Electrochemistry is an interdisciplinary field that studies the interaction between electricity and chemical reactions. Its core is to achieve energy conversion or material transformation through redox reactions that occur on the electrode surface. In electrocatalytic oxidation, electrical energy drives chemical reactions, and the catalyst on the electrode surface is used to reduce the activation energy of the reaction, thereby efficiently degrading pollutants or synthesizing target products.

[0003] The working principle of electrochemical catalytic oxidation is based on two mechanisms: direct oxidation and indirect oxidation. Direct oxidation: organic matter loses electrons directly on the anode surface and is oxidized into CO2 and H2O. Indirect oxidation: strong oxidizing substances are generated through electrode reactions. These substances further oxidize organic matter. The solution after the reaction is further treated by precipitation, filtration or biological treatment to remove residual pollutants.

[0004] Existing electrochemical catalytic oxidation devices do not achieve complete wastewater treatment and cannot reach the required level. Furthermore, the impurities generated during the reaction process are difficult to handle by the fixed-pore size filter screen, which is prone to local blockage. The water after the reaction is relatively turbid and of poor quality. Therefore, the filter structure is easily clogged by scale or suspended solids, requiring frequent shutdowns for cleaning, which greatly reduces operating efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an electrochemical catalytic oxidation device, which solves the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an electrochemical catalytic oxidation device, including a base plate, two side sealing plates fixedly installed on the top of the base plate, a reaction sleeve fixedly connected between the two side sealing plates, a sealing partition fixedly connected to the inner wall of the reaction sleeve, dividing the reaction sleeve into an electrolysis chamber and a circulating drainage chamber, a filter sleeve rotatably connected to the inner wall of the sealing partition, a plurality of staggered conical holes being opened through the outer surface of the filter sleeve, an electrolytic cathode fixedly connected to the outer wall of the sealing partition, an electrolytic anode fixedly connected to the outer wall of the sealing partition, and an annular nozzle sleeved on the outer wall of both the electrolytic cathode and the electrolytic anode.

[0009] To solve the above technical problems, the present invention provides the following technical solution: an electrolytic driver is fixedly connected to the inner wall of the side sealing plate, and a mounting base is fixedly connected to the side of the electrolytic driver away from the side sealing plate. The side of the mounting base away from the electrolytic driver is rotatably connected to the side of the filter sleeve away from the sealing partition.

[0010] To solve the above technical problems, the present invention provides the following technical solution: a drive motor is fixedly installed on the outer wall of the electrolysis driver, the output end of the drive motor is fixedly connected to one end of the filter sleeve, a high-pressure water pipe is fixedly connected inside the mounting base, and one end of the high-pressure water pipe is connected to the outer surface of the annular nozzle.

[0011] To solve the above technical problems, the present invention provides the following technical solution: the end of the filter sleeve away from the mounting base is connected to a water supply connection valve, the water supply connection valve extends into the circulating drainage chamber, and a sealing ring is provided at the connection between the water supply connection valve and the sealing partition.

[0012] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fixing rod is slidably connected to the inner wall of the side sealing plate, a fixing block is fixedly connected to the end of the fixing rod away from the side sealing plate, and a screw is fixedly connected to the end of the fixing rod away from the fixing block.

[0013] To solve the above technical problems, the present invention provides the following technical solution: a fastening nut is threadedly connected to the outer wall of the screw, a central support plate is fixedly installed on the top of the base plate, and the inner wall of the central support plate is fixedly connected to the outer wall of the reaction sleeve.

[0014] To solve the above technical problems, the present invention provides the following technical solution: sealing grooves are provided on both sides of the reaction sleeve, and sealing rings are fixedly connected in the sealing grooves; a water tank is fixedly connected to the top of the base plate, and two water circulation conveying pipes are connected to the outer surface of the water tank.

[0015] To solve the above-mentioned technical problems, the present invention provides the following technical solution: the ends of the two water circulation conveying pipes away from the water tank are connected to the outer surface of the reaction sleeve and extend into the electrolysis chamber and the circulation drainage chamber respectively, and the inner wall of the circulation drainage chamber is connected to a drainage pipe.

[0016] The beneficial effects of this utility model are:

[0017] 1. The device is equipped with a drive motor that drives the filter sleeve to rotate at high speed. Impurities are thrown out along the tangential direction by centrifugal force, avoiding clogging of the conical holes. It is especially suitable for wastewater with high suspended solids. The conical hole has a small inner and large outer structure, which enhances the shear force through the laminar flow velocity gradient. It uses the fluid shear force to automatically peel off the attached substances, reducing the frequency of manual cleaning.

[0018] 2. The device uses an annular nozzle to introduce high-pressure water through a high-pressure water pipe to backwash the filter sleeve, periodically removing impurities. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the water tank structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the reaction sleeve of this utility model.

[0023] Figure 4 This is a schematic diagram of the electrolytic cathode structure of this utility model.

[0024] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Base plate; 2. Drive motor; 3. Fixing block; 4. Side sealing plate; 5. Central support plate; 6. Drainage pipe; 7. Fastening nut; 8. Fixing rod; 9. Reaction sleeve; 10. Water tank; 11. Water circulation conveying pipe; 12. Screw; 13. Sealing ring; 14. Electrolysis actuator; 15. Conical hole; 16. Sealing partition; 17. Filter sleeve; 18. Electrolysis cathode; 19. Mounting base; 20. Electrolysis anode; 21. Water supply connection valve; 22. High-pressure water flow pipe; 23. Annular nozzle; 24. Electrolysis chamber; 25. Circulating drainage chamber. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Reference Figure 1-5This is the first embodiment of the present invention, which provides an electrochemical catalytic oxidation device, including a base plate 1. Two side sealing plates 4 are fixedly installed on the top of the base plate 1. A reaction sleeve 9 is fixedly connected between the two side sealing plates 4. A sealing partition 16 is fixedly connected to the inner wall of the reaction sleeve 9, dividing the reaction sleeve 9 into an electrolysis chamber 24 and a circulating drainage chamber 25. A filter sleeve 17 is rotatably connected to the inner wall of the sealing partition 16. A plurality of staggered conical holes 15 are opened through the outer surface of the filter sleeve 17. The filter sleeve 17 has conical holes 15 with smaller inner diameters and larger outer diameters. It is driven to rotate by a drive motor 2 to achieve dynamic filtration. The diameter gradient of the conical holes 15 is 0.5 mm at the inlet and 1 mm at the outlet. An electrolytic cathode 18 is fixedly connected to the outer wall of the sealing partition 16.

[0029] An electrolytic anode 20 is fixedly connected to the outer wall of the sealing partition 16. An annular nozzle 23 is fitted on the outer walls of both the electrolytic cathode 18 and the electrolytic anode 20. An electrolytic driver 14 is fixedly connected to the inner wall of the side sealing plate 4. A mounting base 19 is fixedly connected to the side of the electrolytic driver 14 away from the side sealing plate 4. The side of the mounting base 19 away from the electrolytic driver 14 is rotatably connected to the side of the filter sleeve 17 away from the sealing partition 16. A drive motor 2 is fixedly installed on the outer wall of the electrolytic driver 14. The rotation speed of the drive motor 2 is in the range of 200-500 rpm to avoid insufficient centrifugal force or excessive energy consumption. The output end of the drive motor 2 is fixedly connected to one end of the filter sleeve 17. A high-pressure water pipe 22 is fixedly connected inside the mounting base 19. One end of the high-pressure water pipe 22 is connected to the outer surface of the annular nozzle 23.

[0030] Example 2

[0031] Reference Figure 1-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the end of the filter sleeve 17 away from the mounting base 19 is connected to a water supply connection valve 21, the water supply connection valve 21 extends into the circulating drainage chamber 25, a sealing ring is provided at the connection between the water supply connection valve 21 and the sealing partition 16, a fixing rod 8 is slidably connected to the inner wall of the side sealing plate 4, a fixing block 3 is fixedly connected to the end of the fixing rod 8 away from the side sealing plate 4, a screw 12 is fixedly connected to the end of the fixing rod 8 away from the fixing block 3, a fastening nut 7 is threadedly connected to the outer wall of the screw 12, a middle support plate 5 is fixedly installed on the top of the bottom plate 1, and the inner wall of the middle support plate 5 is fixedly connected to the outer wall of the reaction sleeve 9;

[0032] Both sides of the reaction sleeve 9 are provided with sealing grooves, and sealing rings 13 are fixedly connected in the sealing grooves. The sealing rings 13 are made of PTFE and have a pressure resistance of ≥0.6MPA. A water tank 10 is fixedly connected to the top of the base plate 1. The water tank 10 supplies water to the electrolysis chamber 24 and the circulating drainage chamber 25 through the water circulation conveying pipe 11. The drain pipe 6 discharges waste residue. Two water circulation conveying pipes 11 are connected to the outer surface of the water tank 10. The ends of the two water circulation conveying pipes 11 away from the water tank 10 are connected to the outer surface of the reaction sleeve 9 and extend into the electrolysis chamber 24 and the circulating drainage chamber 25 respectively. The inner wall of the circulating drainage chamber 25 is connected to the drain pipe 6.

[0033] The remaining structure is the same as that in Example 1.

[0034] During use, wastewater is pumped into the electrolysis chamber 24 through the water tank 10 and the water circulation pipe 11. Driven by the electrolysis driver 14, electrochemical reactions occur on the surfaces of the electrolysis anode 20 and cathode 18. Organic matter directly loses electrons on the anode surface and is oxidized into CO2 and H2O. Hydroxyl radicals are generated at the anode, and strong oxidizing substances such as H2O2 are generated at the cathode through oxygen reduction reaction, further degrading pollutants. The treated water enters the filter sleeve 17. The drive motor 2 drives the filter sleeve to rotate at high speed at a speed of 200-500 rpm, generating centrifugal force. The suspended matter is thrown out along the tangential direction by the centrifugal force and enters the circulating drainage chamber 25 through the water supply connection valve 21, and is finally discharged through the drain pipe 6.

[0035] During use, the staggered conical holes 15 on the surface of the filter sleeve 17 adopt an inner-small and outer-large design, with an inlet of 0.5mm and an outlet of 1mm. When the fluid passes through, the shear force gradient automatically peels off the attached substances, reducing clogging. The high-pressure water flow pipe 22 is activated periodically, and high-pressure water flow (1-1.5MPA) is sprayed through the annular nozzle 23. The water flow washes the surface of the electrolytic cathode 18, electrolytic anode 20 and filter sleeve 17 in the opposite direction to remove residual pollutants. The rotation of the filter sleeve and the high-pressure water flow form an air-water mixture to wash, which improves the backwashing efficiency. The flushing wastewater flows back to the circulating drainage chamber 25 through the water supply connection valve 21 to realize closed-loop circulation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrochemical catalytic oxidation device, characterized in that: The system includes a base plate (1), on which two side sealing plates (4) are fixedly installed. A reaction sleeve (9) is fixedly connected between the two side sealing plates (4). A sealing partition (16) is fixedly connected to the inner wall of the reaction sleeve (9), dividing the reaction sleeve (9) into an electrolysis chamber (24) and a circulating drainage chamber (25). A filter sleeve (17) is rotatably connected to the inner wall of the sealing partition (16). Several staggered conical holes (15) are opened through the outer surface of the filter sleeve (17). An electrolytic cathode (18) is fixedly connected to the outer wall of the sealing partition (16). An electrolytic anode (20) is fixedly connected to the outer wall of the sealing partition (16). Both the outer walls of the electrolytic cathode (18) and the electrolytic anode (20) are fitted with annular nozzles (23).

2. The electrochemical catalytic oxidation device according to claim 1, characterized in that: An electrolysis driver (14) is fixedly connected to the inner wall of the side sealing plate (4). An installation base (19) is fixedly connected to the side of the electrolysis driver (14) away from the side sealing plate (4). The side of the installation base (19) away from the electrolysis driver (14) is rotatably connected to the side of the filter sleeve (17) away from the sealing partition (16).

3. The electrochemical catalytic oxidation device according to claim 2, characterized in that: The outer wall of the electrolysis driver (14) is fixedly installed with a drive motor (2), the output end of the drive motor (2) is fixedly connected to one end of the filter sleeve (17), and a high-pressure water pipe (22) is fixedly connected inside the mounting base (19), one end of the high-pressure water pipe (22) is connected to the outer surface of the annular nozzle (23).

4. The electrochemical catalytic oxidation device according to claim 1, characterized in that: The filter sleeve (17) is connected to a water supply connection valve (21) at the end away from the mounting base (19). The water supply connection valve (21) extends into the circulating drainage chamber (25). A sealing ring is provided at the connection between the water supply connection valve (21) and the sealing partition (16).

5. The electrochemical catalytic oxidation device according to claim 1, characterized in that: The inner wall of the side sealing plate (4) is slidably connected to a fixing rod (8), and a fixing block (3) is fixedly connected to one end of the fixing rod (8) away from the side sealing plate (4), and a screw (12) is fixedly connected to the other end of the fixing rod (8) away from the fixing block (3).

6. The electrochemical catalytic oxidation device according to claim 5, characterized in that: The screw (12) is threaded with a fastening nut (7) on its outer wall, and a middle support plate (5) is fixedly installed on the top of the base plate (1). The inner wall of the middle support plate (5) is fixedly connected to the outer wall of the reaction sleeve (9).

7. The electrochemical catalytic oxidation device according to claim 6, characterized in that: Both sides of the reaction sleeve (9) are provided with sealing grooves, and sealing rings (13) are fixedly connected in the sealing grooves. A water tank (10) is fixedly connected to the top of the base plate (1), and two water circulation conveying pipes (11) are connected to the outer surface of the water tank (10).

8. The electrochemical catalytic oxidation device according to claim 7, characterized in that: The two water circulation conveying pipes (11) are connected to the outer surface of the reaction sleeve (9) at the ends away from the water tank (10) and extend into the electrolysis chamber (24) and the circulation drainage chamber (25) respectively. The inner wall of the circulation drainage chamber (25) is connected to the drainage pipe (6).

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