Wastewater electrooxidation treatment device capable of automatically descaling
By designing a wastewater electro-oxidation treatment device that automatically descaled and using a mechanical brush to remove the scale, the problem of shortening the life of the plate is solved, and the effect of extending the life of the plate and improving the descaling efficiency is achieved.
Patent Information
- Application Number
- CN202421293540.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-07
AI Technical Summary
When the existing wastewater electrooxidation treatment devices are scaled, the plate life will be shortened, and traditional descaling methods may damage the electrode surface, increasing costs and secondary pollution risks.
An automatic descaling device including an electrolytic cell, a reversing brush and an electrooxidation treatment mechanism is designed to remove the scale by mechanical brushing of the reversing brush to avoid damage to the anode coating and can be detachably cleaned to prevent the electrolytic efficiency from being reduced.
It extends the service life of the plate, improves the descaling efficiency, avoids secondary pollution and increase costs, and ensures the stability of electrolytic efficiency.
Smart Images
Figure CN222631155U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of environmentally friendly sewage treatment, and in particular relates to a wastewater electro-oxidation treatment device capable of automatically removing scale. Background Art
[0002] Electro-oxidation treatment of wastewater has the advantages of no secondary pollution, high energy efficiency, simple electrolysis equipment and operation methods, etc. It is widely used in the treatment of difficult-to-degrade industrial wastewater.
[0003] During the electrolysis process, a reduction reaction will occur on the cathode surface to produce a strong alkaline environment, which reacts with some Ca in the water. 2+ Mg 2 + The formation of precipitates and scaling on the electrode surface will lead to a series of problems that are not conducive to electrochemical reactions, such as increased energy consumption, reduced processing efficiency, and shortened plate service life.
[0004] At present, the commonly used descaling methods are mainly divided into two categories: chemical method and physical method. The chemical method removes Ca by adding chemicals. 2+ and Mg 2+ , which may cause secondary pollution, and the use of reagents will increase costs. The physical method mainly uses high-pressure backwashing, mechanical scraping and inverted electrode methods, but it will cause great damage to the electrode surface coated with catalytic materials and shorten the service life of the electrode. Therefore, it is necessary to provide a wastewater electro-oxidation treatment device that can automatically descale and does not damage the surface of the electrode plate. Utility Model Content
[0005] In view of the deficiencies in the prior art, the technical problem solved by the utility model is to provide a wastewater electro-oxidation treatment device capable of automatically descaling, which is used to address the problem of reduced plate life caused by plate scaling removal in current wastewater electro-oxidation treatment devices.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A wastewater electro-oxidation treatment device capable of automatically removing scale comprises an electrolytic cell and a rotating brush and an electro-oxidation treatment mechanism arranged inside the electrolytic cell. After the sewage in the electrolytic cell is electrolyzed by the electro-oxidation treatment mechanism, the scale attached to the electro-oxidation treatment mechanism is brushed away by the rotating brush.
[0008] Furthermore, the electro-oxidation treatment mechanism includes a cathode plate, an anode plate, a plate connection terminal, an anode lead and a cathode lead, the cathode plate and the anode plate are both cylindrical, the cathode plate and the anode plate are evenly and alternately arranged in a cylindrical shape, and the cathode plate is set as the outermost layer.
[0009] Furthermore, both ends of the outermost cathode plate are provided with a plate fixing plate.
[0010] Furthermore, the electrode plate connecting end includes a cathode connector and an anode connector, and the electrode plate connecting end is fixedly connected to the lower ends of the cathode plate and the anode plate.
[0011] Furthermore, one side of the cathode connector and one side of the anode connector are evenly staggered and fixedly connected to form a disc shape.
[0012] Furthermore, an insulating end is provided between the cathode connector and the anode plate, and an insulating end is provided between the anode connector and the cathode plate.
[0013] Furthermore, the rotating brush contacts the surface of the cathode plate.
[0014] Furthermore, a plate fixing joint is provided on the outer surface of the electrolytic cell body, the bottom of the electrolytic cell is conical, and a water inlet fixing joint is provided on the outer side of the surface of the part where the conical bottom and the cell body meet.
[0015] Furthermore, the electrode plate fixed joints and the water inlet fixed joints are connected through the electrolytic cell fixed joints.
[0016] Furthermore, the rotating brush is connected to a connecting rod via a fixing rod, and the connecting rod is connected to an output end of the reducer.
[0017] Beneficial effects of the utility model:
[0018] (1) Extending the service life of the plates: The utility model uses a rotating brush to continuously mechanically remove scale, which can avoid damage to the anode coating during the traditional descaling process and extend the service life of the plates.
[0019] (2) Improving descaling efficiency: The utility model can set an electric brush on the rotating brush, and can use the fixed rod to energize to achieve reverse descaling of the cathode plate, thereby improving descaling efficiency.
[0020] (3) Disassembled and easy to clean: The cell body and conical bottom of the electrolytic cell of the utility model can be disassembled, which is convenient for cleaning and recovery, preventing the electrolysis efficiency from decreasing, increasing energy consumption and shortening the service life of the plates. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the overall structure of the electro-oxidation treatment mechanism of the utility model;
[0023] Figure 3 This is a top view of the electro-oxidation treatment mechanism of the utility model;
[0024] Figure 4 It is a schematic diagram of the bottom end of the electro-oxidation treatment mechanism of the utility model.
[0025] In the figure: 1. reducer; 2. electrolytic cell; 21. pole plate connection end; 22. electrolytic cell fixed joint; 23. cathode joint; 24. anode joint; 25. insulating end; 3. rotating brush; 4. cathode plate; 5. anode plate; 6. anode lead; 7. cathode lead; 8. water inlet; 9. water outlet; 10. water inlet fixed joint; 11. pole plate fixed joint; 12. pole plate fixing plate; 13. connecting rod; 14. fixing rod. DETAILED DESCRIPTION
[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0027] like Figures 1 to 4 As shown, the utility model provides a wastewater electro-oxidation treatment device capable of automatically removing scale. It comprises an electrolytic cell 2, a rotating brush 3 and an electro-oxidation treatment mechanism. The electrolytic cell 2 is provided with a rotating brush 3 and an electro-oxidation treatment mechanism. After the sewage in the electrolytic cell 2 is electrolyzed by the electro-oxidation treatment mechanism, the scale attached to the electro-oxidation treatment mechanism is brushed away by the rotating brush 3. The sewage enters the cell body from the conical bottom of the electrolytic cell 2 through the water inlet 8 at the lower end and contacts the electrode plate. After power is turned on, the electro-oxidation treatment begins. The treated sewage flows out from the water outlet 9 above the electrolytic cell 2. During the electrolysis process, a reduction reaction occurs on the surface of the cathode plate 4, which reacts with Ca in the water. 2+ and Mg 2+ The precipitation is generated, and the surface of the cathode plate 4 is scaled. At this time, the reducer 1 is turned on to drive the connecting rod 13 and the fixed rod 14 to rotate, thereby driving the rotating brush 3 in contact with the surface of the cathode plate 4 to rotate and brush away the dirt. After the dirt is removed, the electrolytic cell 2 can be disassembled through the water inlet fixed joint 10 and the plate fixed joint 11 to achieve the purpose of cleaning and descaling, thereby preventing the electrolysis efficiency from decreasing and increasing energy consumption.
[0028] like Figure 1 , 2 As shown. The electro-oxidation treatment mechanism includes a cathode plate 4, an anode plate 5, a plate connection end 21, an anode lead 6 and a cathode lead 7. The cathode plate 4 and the anode plate 5 are both cylindrical. The cathode plate 4 and the anode plate 5 are evenly and alternately arranged in a cylindrical shape, and the cathode plate 4 is set as the outermost layer. After the sewage enters the electrolytic cell 2, it contacts the cathode plate 4 and the anode plate 5. After power is turned on, the electrolytic treatment of the sewage begins. The cathode plate 4 is made of stainless steel or titanium plate, and the anode plate 5 is made of DSA electrode plate. The plate spacing between the cathode plate 4 and the anode plate 5 is 1 to 2 cm.
[0029] The outermost cathode plate 4 is provided with a plate fixing plate 12 at both ends. The plate fixing plate 12 penetrates the tank body of the electrolytic cell 2 and is inserted between the two plate fixing joints 11, and then is fixed by the electrolytic cell fixing joint 22 to achieve the purpose of fixing the electro-oxidation treatment mechanism.
[0030] like Figure 1 , 3 4. The plate connection end 21 includes a cathode connector 23 and an anode connector 24. The plate connection end 21 is fixedly connected to the lower ends of the cathode plate 4 and the anode plate 5 to achieve the function of fixedly connecting the cathode plate 4 and the anode plate 5. After power is turned on, the current is transmitted to the cathode plate 4 and the anode plate 5 through the plate connection end 21 to achieve the purpose of electrolysis.
[0031] One side of the cathode connector 23 and one side of the anode connector 24 are evenly staggered and fixedly connected to form a disc shape. The formed disc shape is the plate connection end 21, which is fixedly connected to the cathode plate 4 and the anode plate 5. The cathode connector 23 is connected to the cathode lead 7 as a cathode connecting rod, and the anode connector 24 is connected to the anode lead 6 as an anode connecting rod. The connected power is transmitted to the cathode connector 23 and the anode connector 24 respectively through the cathode lead 7 and the anode lead 6, and then transmitted to the cathode plate 4 and the anode plate 5 respectively to carry out the electrolysis reaction.
[0032] An insulating end 25 is provided between the cathode connector 23 and the anode plate 5, and an insulating end 25 is provided between the anode connector 24 and the cathode plate 4. The current passing through the cathode connector 23 is transmitted to the cathode plate 4, and the current passing through the anode connector 24 is transmitted to the anode plate 5, preventing the current transmitted by the cathode connector 23 from passing into the anode plate 5 and the current transmitted by the anode connector 24 from passing into the cathode plate 4, so that the positive and negative charges of the current are transmitted correctly, ensuring the normal reaction of the electrolysis.
[0033] The rotating brush 3 contacts the surface of the cathode plate 4. After the reducer 1 is powered on, it drives the connecting rod 13 at the output end to rotate, thereby rotating the fixed rod 14 fixed at the lower end of the connecting rod 13. The lower end of the fixed rod 14 fixes the rotating brush 3. The rotation of the fixed rod 14 drives the rotating brush 3 to rotate on the surface of the cathode plate 4 again, thereby brushing off the dirt on the surface of the cathode plate 4 to achieve the purpose of descaling. The rotating brush 3 adopts a continuous operation mode. The connecting rod 13 and the fixed rod 14 are both made of titanium alloy, and the bristles of the rotating brush 3 are made of corrosion-resistant materials. A brush can be set on the connecting rod 13, and the brush is connected to the negative pole of the power supply. The anode plate 5 is short-circuited, and the cathode plate 4 is reversed for descaling.
[0034] The outer surface of the electrolytic cell 2 is provided with a plate fixing joint 11, which divides the cell into two upper and lower half cylinders. The connection between the two half cylinders is provided with a plate fixing joint 11. The plate fixing plate 12 that penetrates the cell body is inserted between the two plate fixing joints 11, and then fixed by the electrolytic cell fixing joint 22, so as to achieve the purpose of fixing the cathode plate 4 and the anode plate 5, so that the cathode plate 4 and the anode plate 5 react with the sewage in the electrolytic cell 2 for electrolysis. After the electrolysis is completed, the dirt remaining in the electrolytic cell 2 can be removed and the inside of the cell body can be cleaned by disassembling the electrolytic cell fixing joint 22 and the plate fixing joint 11, so as to increase the electrolysis rate and reduce energy consumption.
[0035] The bottom of the electrolytic cell 2 is conical, and the outer side of the surface of the part where the conical bottom and the cell body are connected is provided with a water inlet end fixed joint 10, which divides the conical bottom and the cell body into two parts. The connecting part of the conical bottom and the cell body is provided with a water inlet end fixed joint 10, and the two water inlet end fixed joints are fixed by the electrolytic cell fixed joint 22, and the anode lead 6 and the cathode lead 7 are led out from the water inlet end fixed joint 10 and connected to the power supply.
[0036] The reducer 1 is fixed at the upper end of the electrolytic cell 2, and the output end is connected to one end of the connecting rod 13. After the reducer 1 is powered on, the output end rotates to drive the connecting rod 13 that runs through the electrolytic cell 2 to rotate, and then drives the fixed rod 14 to rotate, indirectly driving the rotating brush 3 to rotate to remove dirt on the surface of the cathode plate 4.
[0037] The water inlet 8 is at the bottom of the conical bottom of the electrolytic cell 2. After the sewage enters from the water inlet 8 and is electrolytically treated by the electro-oxidation treatment mechanism, the treated sewage flows out from the water outlet 9 at the upper end of the electrolytic cell 2. The water inlet 8 can be connected to the water inlet end, the aeration pipe and the drain pipe to increase the electrolysis efficiency and reduce energy consumption.
[0038] The method of using the utility model is as follows: sewage enters the electrolytic cell 2 from the conical bottom through the water inlet 8 at the lower end and contacts the electrode plate. After power is turned on, the electro-oxidation treatment begins. The treated sewage flows out from the water outlet 9 above the electrolytic cell 2. During the electrolysis process, a reduction reaction occurs on the surface of the cathode plate 4, and the Ca in the water is reduced. 2+ and Mg 2+Precipitate is generated, so that the surface of the cathode plate 4 will be scaled. At this time, the reducer 1 is turned on to drive the connecting rod 13 and the fixed rod 14 to rotate, thereby driving the rotating brush 3 in contact with the surface of the cathode plate 4 to rotate and brush off the dirt. After the dirt is removed, the electrolytic cell 2 can be disassembled through the water inlet fixed joint 10 and the plate fixed joint 11 to achieve the purpose of cleaning and descaling, and prevent the electrolysis efficiency from decreasing and the energy consumption from increasing. The treatment device of the utility model can be arranged in series to treat sewage in multiple cycles to achieve excellent treatment effects. When operating in series, the water inlet 8 of the electrolytic cell 2 is connected to the water outlet 9 of the previous electrolytic cell 2, and the water outlet 9 is connected to the water inlet 8 of the next electrolytic cell 2, so as to achieve the purpose of continuous and multiple sewage treatment, and the treatment effect is good.
[0039] Example 2
[0040] The DTRO concentrate of a landfill leachate was selected as the treatment object. The total hardness of the wastewater was 4454 mg / L. It was placed in the treatment device described in Example 1 and the current density was 800 A / m 2 The electrolysis was performed for 1 to 4 hours. The changes in the total hardness of the solution are shown in Table 1.
[0041] Table 1 Total hardness in the solution after treatment
[0042] Electrolysis time (h) Total hardness (mg / L) 1 4078.5 2 3703.7 3 3412.2 4 3115.6
[0043] Table 1 shows the total hardness in the treated solution. It can be seen from the table that the total hardness in the wastewater is converted into precipitates and removed during electrolysis. After 4 hours of electrolysis, the total hardness decreases by 1338.4 mg / L. There is no scaling on the surface of the cathode plate during operation. The utility model can effectively solve the problem of scaling on the surface of the cathode plate. The electro-oxidation device needs to regularly empty the electrolytic cell during operation to prevent calcium and magnesium precipitates from accumulating in the electrolytic cell. In order to enhance the descaling effect, the electrolytic cell can be regularly soaked in an acid solution, and the cathode plate can be scraped and descaled with a rotating brush.
Claims
1. A wastewater electro-oxidation treatment device capable of automatic descaling, characterized in that: It comprises an electrolytic cell (2), a rotating brush (3) and an electro-oxidation treatment mechanism arranged inside the electrolytic cell (2); after the sewage in the electrolytic cell (2) is electrolyzed by the electro-oxidation treatment mechanism, the scale attached to the electro-oxidation treatment mechanism is brushed away by the rotating brush (3); The electro-oxidation treatment mechanism comprises a cathode plate (4), an anode plate (5), an electrode plate connection end (21), an anode lead (6) and a cathode lead (7); the cathode plate (4) and the anode plate (5) are both cylindrical; the cathode plate (4) and the anode plate (5) are evenly and alternately arranged in a cylindrical shape, and the cathode plate (4) is arranged as the outermost layer.
2. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 1, characterized in that: Both ends of the outermost cathode plate (4) are provided with a pole plate fixing plate (12).
3. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 1, characterized in that: The pole plate connection end (21) comprises a cathode connector (23) and an anode connector (24), and the pole plate connection end (21) is fixedly connected to the lower ends of the cathode plate (4) and the anode plate (5).
4. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 3, characterized in that: One side of the cathode connector (23) and one side of the anode connector (24) are evenly staggered and fixedly connected to form a disc shape.
5. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 4, characterized in that: An insulating end (25) is provided between the cathode connector (23) and the anode plate (5), and an insulating end (25) is provided between the anode connector (24) and the cathode plate (4).
6. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 1, characterized in that: The rotating brush (3) is in contact with the surface of the cathode plate (4).
7. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 1, characterized in that: The outer surface of the electrolytic cell (2) is provided with a plate fixing joint (11); the bottom of the electrolytic cell (2) is conical, and the outer surface of the surface of the portion where the conical bottom and the cell body meet is provided with a water inlet end fixing joint (10).
8. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 7, characterized in that: The electrode plate fixed joints (11) and the water inlet fixed joints (10) are connected via an electrolytic cell fixed joint (22).
9. The wastewater electro-oxidation treatment device capable of automatic descaling according to claim 1, characterized in that: The rotating brush (3) is connected to a connecting rod (13) via a fixing rod (14), and the connecting rod (13) is connected to an output end of the reducer (1).