Electrocatalytic oxidation pretreatment device

Abstract

The utility model relates to the technical field of electrocatalytic oxidation, and particularly discloses an electrocatalytic oxidation pretreatment device which comprises a sewage treatment tank with a cylindrical structure, an electric push rod is fixedly connected to the top of the sewage treatment tank, and a water outlet is formed in one side of the upper end face of the sewage treatment tank. A water inlet is formed in the lower side of the outer surface of the sewage treatment box, electrode bars are annularly distributed and fixed to the top end of the interior of the sewage treatment box at equal intervals, the electrode bars are sleeved with a filter plate, and the outer side of the filter plate is attached to the inner wall of the sewage treatment box. A filter plate is arranged to be matched with an electric push rod and a collecting box, impurities on the surface of an electrode bar can be scraped through a scraping cylinder, impurities attached to the inner wall of the sewage treatment box can be cleaned, the impurities are further gathered and pushed into the collecting box to be temporarily stored, and then the impurities can be discharged out of the sewage treatment box by opening a sealing cover without shutdown cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of electrocatalytic oxidation, in particular to an electrocatalytic oxidation pretreatment device. Background Technique

[0002] The electrocatalytic oxidation technology is an oxidation reaction that uses electricity as a catalyst and hydrogen peroxide, oxygen, ozone, etc. as oxidants. The catalytic efficiency is stable, and the utilization rate of the oxidant is over 95%. Compared with the direct oxidation of ozone, the reaction rate of hydroxyl radicals generated in the electrocatalytic oxidation system is higher, there is no selectivity, and it can react with almost all organic substances. Therefore, the effect of advanced oxidation is stable and will not change with the change of residual organic substances in water.

[0003] The Chinese patent with the publication number of CN214990374U discloses an electrocatalytic oxidation pretreatment device, which can keep sewage at a relatively warm temperature, making the molecular activity and reaction efficiency in the sewage relatively high, and can clean the oil stains and coagulants adhered to the surface of the electrode rods, ensuring that the electrocatalytic efficiency of the electrode rods is not affected.

[0004] During the process of cleaning the impurities on the surface of the electrode rods, the entire device needs to be shut down for operation to complete. The treatment of the device is often associated with several other sewage treatment process steps and is connected to the devices in each of these steps. Therefore, once the device stops running, it will affect other sewage treatment devices, and further affect the efficiency of the entire treatment process for sewage treatment. Summary of the Invention

[0005] The purpose of the utility model is to provide an electrocatalytic oxidation pretreatment device. By setting a filter plate in cooperation with an electric push rod and a collection box, the device can not only scrape the impurities on the surface of the electrode rods through a scraping cylinder, but also clean the impurities attached to the inner wall of the sewage treatment tank, further gather and push the impurities into the collection box for temporary storage, and then the impurities can be discharged from the sewage treatment tank without shutting down the machine by opening the sealing cover, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an electrocatalytic oxidation pretreatment device, including a sewage treatment tank with a cylindrical structure. The top of the sewage treatment tank is fixedly connected with an electric push rod. One side of the upper end surface of the sewage treatment tank is provided with a water outlet. The lower side of the outer surface of the sewage treatment tank is provided with a water inlet. The inner top of the sewage treatment tank is fixedly distributed at equal intervals in a ring with electrode rods, and a filter plate is sleeved outside the electrode rods. The outer side of the filter plate is attached to the inner wall of the sewage treatment tank. The output shaft of the electric push rod penetrates through the sewage treatment tank and is fixedly connected to the middle of the upper end surface of the filter plate.

[0007] Preferably, a collection box is fixed to the lower end surface of the sewage treatment tank, and the inside of the collection box is a collection chamber.

[0008] Preferably, an opening is formed at the bottom of the sewage treatment tank and communicates with the collection chamber.

[0009] Preferably, scraping cylinders are embedded and connected to the filter plate at equal intervals in a circular shape, and the electrode rods are located on the inner wall of the scraping cylinders and fit against the inner wall of the scraping cylinders.

[0010] Preferably, a sealing rubber ring is fixed to the outside of the filter plate, a scraping plate is fixed to the edge of the lower end surface of the filter plate, and the scraping plate fits against the inner wall of the sewage treatment tank.

[0011] Preferably, a sealing cover is adhesively connected to the lower end surface of the collection box, and the right side of the sealing cover is fixed to the collection box through a self-locking buckle.

[0012] Preferably, support legs are fixed to both sides of the lower end surface of the collection box.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By setting the filter plate in cooperation with the electric push rod and the collection box, this application can not only scrape the impurities on the surface of the electrode rods through the scraping cylinders, but also clean the impurities attached to the inner wall of the sewage treatment tank, further gather and push the impurities into the collection box for temporary storage. Then, without stopping the machine for cleaning, the impurities can be discharged from the sewage treatment tank by opening the sealing cover;

[0015] 2. By designing the filter plate, this application can further filter and treat the sewage, and cooperate with the electrode rods to achieve excellent sewage pretreatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is the overall structural view of the present utility model;

[0018] Figure 2 It is the combined view of the filter plate and the electrode rods of the present utility model;

[0019] Figure 3 It is the Figure 1 enlarged view of part A in the present utility model;

[0020] Figure 4This is a combined view of the support leg and the collection box of the present utility model.

[0021] Explanation of reference numerals:

[0022] 1. Sewage treatment tank; 2. Electric push rod; 3. Filter plate; 4. Electrode rod; 5. Water inlet; 6. Collection box; 7. Support leg; 8. Sealing cover; 9. Opening; 10. Collection cavity; 11. Scraping cylinder; 12. Scraper; 13. Sealing rubber ring; 14. Water outlet. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 4 , the present utility model provides a technical solution:

[0025] The electrocatalytic oxidation pretreatment device includes a sewage treatment tank 1 with a cylindrical structure. An electric push rod 2 is fixedly connected to the top of the sewage treatment tank 1. A water outlet 14 is opened on one side of the upper end surface of the sewage treatment tank 1. A water inlet 5 is opened on the lower side of the outer surface of the sewage treatment tank 1. Electrode rods 4 are fixedly distributed at equal intervals in a ring at the inner top of the sewage treatment tank 1, and a filter plate 3 is sleeved outside the electrode rods 4. The outer side of the filter plate 3 is attached to the inner wall of the sewage treatment tank 1. The output shaft of the electric push rod 2 penetrates the sewage treatment tank 1 and is fixedly connected to the middle of the upper end surface of the filter plate 3.

[0026] Specifically, a collection box 6 is fixedly connected to the lower end surface of the sewage treatment tank 1, and the inside of the collection box 6 is a collection cavity 10.

[0027] Specifically, an opening 9 is opened at the bottom of the sewage treatment tank 1 and is communicated with the collection cavity 10.

[0028] Specifically, scraping cylinders 11 are embedded and connected at equal intervals in a ring on the filter plate 3, and the electrode rods 4 are located inside the inner walls of the scraping cylinders 11 and are attached to the inner walls of the scraping cylinders 11.

[0029] Specifically, a sealing rubber ring 13 is fixedly connected to the outside of the filter plate 3. A scraper 12 is fixedly connected to the edge of the lower end surface of the filter plate 3, and the scraper 12 is attached to the inner wall of the sewage treatment tank 1. The scraper 12 can also scrape and clean the inner wall of the sewage treatment tank.

[0030] Specifically, a sealing cover 8 is adhesively bonded to the lower end surface of the collection box 6, and the right side of the sealing cover 8 is fixed to the collection box 6 by a self-locking buckle. The user opens the self-locking buckle and flips the sealing cover 8 downward to dispose of the impurities in the collection box 6.

[0031] Specifically, support legs 7 are fixed on both sides of the lower end surface of the collection box 6 for supporting and fixing the sewage treatment box 1.

[0032] Working principle: During operation, the user connects the water inlet 5 to an external sewage supply device through a pipeline, and connects the water outlet 14 to the next sewage treatment device through a pipeline. Then, sewage is injected into the sewage treatment box. As the sewage is slowly injected, it flows upward after being filtered by the filter plate 3 and finally is discharged through the water outlet 14.

[0033] The electrode rod 4 is connected to an external controller and a power supply. The electrode rod 4 conducts electricity for internal sewage treatment. When impurities adhere to the surface of the electrode rod 4, the user controls the operation of the electric push rod 2 through the controller to push the filter plate 3 downward. The downward movement of the filter plate 3 drives the scraping cylinder 11 to scrape and clean the attachments on the surface of the electrode rod 4. Then, the scraping plate 12 can also scrape and clean the inner wall of the sewage treatment box. The impurities cleaned are always restricted to the lower side of the filter plate 3 and are finally pushed by the filter plate 3 through the opening 9 into the collection cavity 10 in the collection box 6. At this time, the outside of the filter plate 3 is located at the opening 9 and is sealed and fitted with the opening 9 through the sealing rubber ring 13. The sewage treatment box continues to operate. Then, the user opens the self-locking buckle and flips the sealing cover 8 downward to dispose of the impurities in the collection box 6.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features. And these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrocatalytic oxidation pretreatment device, comprising a sewage treatment tank (1) of a cylindrical structure, characterized in that: The top of the sewage treatment box (1) is fixedly connected to an electric push rod (2), one side of the upper end surface of the sewage treatment box (1) is provided with a water outlet (14), the lower side of the outer surface of the sewage treatment box (1) is provided with a water inlet (5), the top of the interior of the sewage treatment box (1) is annularly and equidistantly fixed with electrode rods (4), and the outside of the electrode rods (4) is sleeved with a filter plate (3), the outer side of the filter plate (3) is in contact with the inner wall of the sewage treatment box (1), and the output shaft of the electric push rod (2) passes through the sewage treatment box (1) and is fixed to the middle of the upper end surface of the filter plate (3).

2. The electrocatalytic oxidation pretreatment device according to claim 1, characterized in that: A collecting box (6) is fixed to the lower end surface of the sewage treatment box (1), and a collecting chamber (10) is inside the collecting box (6).

3. The electrocatalytic oxidation pretreatment device according to claim 2, characterized in that: The bottom of the sewage treatment box (1) is provided with an opening (9) which is in communication with the collection chamber (10).

4. The electrocatalytic oxidation pretreatment device according to claim 3, characterized in that: The filter plate (3) is annularly and equidistantly embedded with a scraper cylinder (11), and the electrode rod (4) is located on the inner wall of the scraper cylinder (11) and fits the inner wall of the scraper cylinder (11).

5. The electrocatalytic oxidation pretreatment device according to claim 4, characterized in that: A sealing rubber ring (13) is fixed to the outside of the filter plate (3), a scraper (12) is fixed to the edge of the lower end surface of the filter plate (3), and the scraper (12) is in contact with the inner wall of the sewage treatment tank (1).

6. The electrocatalytic oxidation pretreatment device according to claim 5, characterized in that: A sealing cover (8) is glued to the lower end surface of the collection box (6), and the right side of the sealing cover (8) is fixed to the collection box (6) by a self-locking buckle.

7. The electrocatalytic oxidation pretreatment device according to claim 6, characterized in that: Support legs (7) are fixed on both sides of the lower end surface of the collecting box (6).

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