Modularized self-cleaning electrocatalytic oxidation electrode

Abstract

The utility model relates to a modularized self-cleaning electrocatalytic oxidation electrode which comprises an electrocatalytic oxidation electrode bar and a modularized independent cleaning assembly, according to the technical key points, the modularized independent cleaning assembly comprises a scraping ring sleeving the outer side of the electrocatalytic oxidation electrode bar, an annular positioning seat connected with the upper part of the periphery of the scraping ring, an annular liquid cavity arranged on the lower surface of the lower part of the annular positioning seat, a plurality of nozzles uniformly arranged on the inner periphery of the annular liquid cavity, and a liquid inlet arranged on the periphery of the annular liquid cavity; the nozzle faces the center line of the electrocatalytic oxidation electrode bar, the lower end of the scraping ring shrinks and is attached to the outer wall of the electrocatalytic oxidation electrode bar, a fixing hole set is formed in the edge of the annular positioning base, and the position, extending to the outer surface of the electrocatalytic oxidation electrode bar, of the center line of the nozzle is lower than the height of the lower end of the scraping ring. The modular independent cleaning assembly is adopted, on one hand, the machining difficulty and the assembling difficulty are reduced, and on the other hand, the cleaning effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment components, specifically to a modular self-cleaning electrocatalytic oxidation electrode. Background Technology

[0002] Currently, to reduce the amount of chemicals used in wastewater treatment, electrocatalytic oxidation electrodes are typically used during pretreatment to decompose organic pollutants in wastewater at ambient temperature and pressure, thereby improving the biodegradability of the wastewater and reducing the biotoxicity of organic pollutants. However, after prolonged operation, oil and oxidation-produced flocculants adhere to the surface of the electrocatalytic oxidation electrode. If these are not removed in time, they will significantly affect the electrocatalytic efficiency.

[0003] Based on this, existing pretreatment equipment has been equipped with corresponding cleaning structures for electrocatalytic oxidation electrodes. For example, CN222989867 U discloses an electrocatalytic oxidation pretreatment device, which includes a cylindrical wastewater treatment tank. An electric push rod is fixedly connected to the top of the wastewater treatment tank. An outlet is opened on one side of the upper end face of the wastewater treatment tank, and an inlet is opened on the lower side of the outer surface of the wastewater treatment tank. Electrode rods are fixedly and evenly distributed in a ring at the top of the inside of the wastewater treatment tank, and a filter plate is sleeved on the outside of the electrode rods. The outer side of the filter plate is in contact with the inner wall of the wastewater treatment tank. This device can remove impurities from the surface of the electrode rods by scraping the scraper on the filter plate to achieve the cleaning purpose. However, the following problems exist: 1. In fact, if the scraper is to play a comprehensive and effective cleaning role without causing offset wear, the scraper and the electrode rod should be arranged concentrically. However, in this device, all the scrapers are arranged on the filter plate, which increases the processing difficulty of the filter plate and the assembly difficulty with the electrode rods; 2. When the ambient temperature is low, oil and other impurities condense and are not easy to remove completely. Utility Model Content

[0004] The purpose of this invention is to provide a modular self-cleaning electrocatalytic oxidation electrode with a reasonable structure and reliable use that solves the above problems. The modular design reduces the difficulty of processing and assembly on the one hand, and enhances the cleaning effect on the other.

[0005] The technical solution of this utility model is:

[0006] A modular self-cleaning electrocatalytic oxidation electrode includes an electrocatalytic oxidation electrode rod and a modular independent cleaning component. The key technical features are: the modular independent cleaning component includes a scraper ring fitted around the outside of the electrocatalytic oxidation electrode rod, an annular positioning seat connected to the upper part of the outer periphery of the scraper ring, an annular liquid cavity located on the lower surface of the annular positioning seat, multiple nozzles evenly arranged on the inner periphery of the annular liquid cavity, and a liquid inlet arranged on the outer periphery of the annular liquid cavity. The nozzles face the centerline of the electrocatalytic oxidation electrode rod. The lower end of the scraper ring is tapered and adheres to the outer wall of the electrocatalytic oxidation electrode rod. The edge of the annular positioning seat is provided with a group of fixing holes. The centerline of the nozzles extends to a position on the outer surface of the electrocatalytic oxidation electrode rod that is lower than the height of the lower end of the scraper ring.

[0007] In the aforementioned modular self-cleaning electrocatalytic oxidation electrode, the scraping ring is a non-metallic ring, and its outer wall is provided with a limiting stop corresponding to the lower edge of the inner wall of the annular positioning seat.

[0008] In the aforementioned modular self-cleaning electrocatalytic oxidation electrode, the wall thickness at the lower end of the scraper ring is 3mm-5mm.

[0009] The beneficial effects of this utility model are:

[0010] 1. Compared with existing technologies, the cleaning components are modularized and made independent. When in use, the modular independent cleaning components are first fitted onto the electrocatalytic oxidation electrode rod. The lower end of the scraper ring is tightly attached to the outer wall of the electrocatalytic oxidation electrode rod to achieve centering and ensure cleaning effect. Then, the annular positioning seat is connected and fixed to the lower surface of the filter plate (equivalent to the lifting plate) in the existing technology. The assembly is convenient and the filter plate does not require precise drilling, reducing the processing difficulty.

[0011] 2. Compared with existing technologies, an additional cleaning method is added: the annular liquid chamber of the annular positioning seat sprays high-temperature liquid onto the electrocatalytic oxidation electrode rod through multiple nozzles, heating and washing away oil stains and other impurities on the outer wall of the electrocatalytic oxidation electrode rod, thus enhancing the cleaning effect in a low-temperature environment. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the present invention;

[0013] Figure 2 This is the outline drawing of this utility model;

[0014] Figure 3 This is a diagram showing the usage state of this utility model.

[0015] In the figure: 1. Electrocatalytic oxidation electrode rod, 2. Annular positioning seat, 3. Fixing hole group, 4. Annular liquid chamber, 5. Nozzle, 6. Liquid inlet, 7. Scraper ring, 8. Lower end, 9. Limit stop, 10. Support plate, 11. Lifting plate, 12. Mass transfer pipeline. Detailed Implementation

[0016] The present invention will be described in detail with reference to the accompanying drawings.

[0017] like Figures 1-3 As shown, the modular self-cleaning electrocatalytic oxidation electrode includes an electrocatalytic oxidation electrode rod 1 and a modular independent cleaning component.

[0018] The modular independent cleaning component includes a scraper ring 7 fitted around the outside of the electrocatalytic oxidation electrode rod 1, an annular positioning seat 2 connected to the upper part of the outer periphery of the scraper ring 7, an annular liquid cavity 4 located on the lower surface of the lower part of the annular positioning seat 2, multiple nozzles 5 evenly arranged on the inner periphery of the annular liquid cavity 4, and a liquid inlet 6 arranged on the outer periphery of the annular liquid cavity 4. The annular positioning seat 2 has a fixing hole group 3 on its edge. In this embodiment, the scraper ring 7 is a non-metallic ring, and its outer wall is provided with a limiting stop 9 corresponding to the lower edge of the inner wall of the annular positioning seat 2.

[0019] The nozzle 5 faces the centerline of the electrocatalytic oxidation electrode rod 1. The lower end 8 of the scraper ring 7 is tapered and fits against the outer wall of the electrocatalytic oxidation electrode rod 1. The centerline of the nozzle 5 extends to a position on the outer surface of the electrocatalytic oxidation electrode rod 1 that is lower than the height of the lower end 8 of the scraper ring. The wall thickness of the lower end of the scraper ring 7 is 3mm-5mm.

[0020] Working principle:

[0021] During assembly, each electrocatalytic oxidation electrode rod 1 is fixed to the support plate 10 of the pretreatment box. The pretreatment box is equipped with a lifting plate 11, which has clearance holes for the corresponding electrocatalytic oxidation electrode rod 1. Each modular independent cleaning component is fitted onto the corresponding electrocatalytic oxidation electrode rod 1. The lower end of the scraper ring 7 is tightly attached to the outer wall of the electrocatalytic oxidation electrode rod 1 for centering. Then, the annular positioning seat 2 is connected and fixed to the lower surface of the lifting plate 11. Finally, the liquid inlet 6 of each modular independent cleaning component is connected to the mass transfer pipeline 12, which is fixed to the lower surface of the lifting plate 11.

[0022] During operation, high-temperature cleaning liquid is injected into the annular liquid chamber 4 of this invention through the mass transfer pipeline 12, and the high-temperature cleaning liquid is sprayed onto the outer wall of the corresponding electrocatalytic oxidation electrode rod 1 through the nozzle 5. The liquid is preheated and flushed to remove oil stains and other impurities from the outer wall of the electrocatalytic oxidation electrode rod 1. The lifting plate 11 drives each modular independent cleaning component to descend. During this process, the scraper ring 7 scrapes away the debris on the surface of the electrocatalytic oxidation electrode rod 1 from its lower port, resulting in a good cleaning effect.

[0023] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A modular self-cleaning electro-catalytic oxidation electrode comprising an electro-catalytic oxidation electrode stick and a modular independent cleaning assembly, characterized in that: The modular independent cleaning component includes a scraper ring fitted around the outside of the electrocatalytic oxidation electrode rod, an annular positioning seat connected to the upper part of the outer periphery of the scraper ring, an annular liquid cavity located on the lower surface of the lower part of the annular positioning seat, multiple nozzles evenly arranged on the inner periphery of the annular liquid cavity, and a liquid inlet arranged on the outer periphery of the annular liquid cavity. The nozzles face the centerline of the electrocatalytic oxidation electrode rod. The lower end of the scraper ring is tapered and fits against the outer wall of the electrocatalytic oxidation electrode rod. The edge of the annular positioning seat is provided with a group of fixing holes. The centerline of the nozzle extends to a position on the outer surface of the electrocatalytic oxidation electrode rod that is lower than the height of the lower end of the scraper ring.

2. The modular, self-cleaning electro-catalytic oxidation electrode according to claim 1, characterized in that: The scraper ring is a non-metallic ring, and its outer wall is provided with a limiting stop corresponding to the lower edge of the inner wall of the annular positioning seat.

3. The modular, self-cleaning electro-catalytic oxidation electrode of claim 1, wherein: The wall thickness at the lower end of the scraper ring is 3mm-5mm.

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