A scale removing device for an electrochemical descaling and cleaning apparatus

Abstract

The application discloses a scale scraping device for an electrochemical descaling and purifying device, and belongs to the technical field of sewage treatment. The scale scraping device comprises a cathode plate fixing mechanism for fixing cathode plates, a frame arranged on the outer side of the cathode plates, a moving mechanism arranged above the frame, and a scraper assembly arranged in the frame. The cathode plate fixing mechanism stably supports multiple groups of vertically arranged cathode plates, and then the moving mechanism drives the scraper assembly to actively clean the cathode plates, so that the problems of swing caused by the self-weight and large area of the cathode plates in the traditional mode are effectively avoided, the damage to the oil cylinder and the cathode plates is significantly reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to a scale scraping device for an electrochemical descaling and purification equipment. Background Technology

[0002] Electrochemical descaling equipment has functions such as descaling, scale inhibition, sterilization, and algae removal. It can replace traditional agents, reduce the water demand and sewage discharge of the circulating system, and significantly reduce system energy consumption, treatment costs, and labor input. It has four major advantages: comprehensive functions, high efficiency and convenience, green environmental protection, and cost reduction. When direct current is conducted to the cooling circulating water through the titanium anode, the following reaction occurs: near the cathode, a high concentration of hydroxide ions (OH-) is formed. - This high pH environment will cause non-scaling minerals (such as calcium) in the water to... 2+ Mg 2+ The scale forms beforehand and precipitates from the water, depositing onto the cathode plate, thus softening the water. Simultaneously, hydroxyl radicals (-OH) are generated at the anode, releasing chloride ions (Cl-). - The ions are converted into free chlorine, and some hydroxide ions are converted into trace amounts of ozone. These strong oxidizing substances can inhibit the growth of bacteria and algae in the circulating water system, achieving the functions of sterilization, disinfection, and algae removal. At the same time, they can also remove calcium from the water. 2+ Mg 2+ After being adsorbed onto the cathode plate in solid form, it is removed, thus reducing the hardness of the water.

[0003] Special electrodes with electrocatalytic function are used to generate active chlorine, active oxygen, and free radicals during direct current electrolysis to kill bacteria and algae and prevent their growth, such as through the chlorine evolution reaction. During electrolysis, a hydrogen evolution reaction occurs at the cathode to generate hydroxide ions, creating a strongly alkaline environment in the cathode area. This promotes the precipitation of calcium and magnesium ions in the water. After energization, scale deposits such as calcium carbonate, magnesium carbonate, and magnesium hydroxide, as well as some slime, are generated and adsorbed onto the cathode plate. A scraper device then scrapes off the scale deposits and slime.

[0004] Traditional scaling methods use a fixed scraper device, where a hydraulic cylinder drives a crossbeam to move the cathode plate in a reciprocating motion. Due to the large area, numerous cathode plates, heavy weight, and uneven scaling, each lifting and lowering process causes varying degrees of lateral swaying of the cathode plates, damaging the hydraulic cylinder and cathode plates. Furthermore, it easily scrapes against the rare metal coating of the anode plate, resulting in economic losses.

[0005] To address the aforementioned problems, this utility model proposes a scraping device for electrochemical descaling and purification equipment, which can actively clean the cathode plate and prevent the cathode plate from shaking or bumping due to reciprocating motion, thus reducing the service life of the cathode plate. Utility Model Content

[0006] In view of the shortcomings of the prior art, and in order to improve the service life of the cathode plate and the cleaning device, this application provides a scale scraping device for an electrochemical descaling and purification equipment.

[0007] This application provides a scale scraping device for an electrochemical descaling and purification equipment, which adopts the following technical solution:

[0008] A scale scraping device for an electrochemical descaling and purification equipment, comprising:

[0009] A cathode plate fixing mechanism is fixedly installed on the body of the electrolytic water tank. Multiple sets of cathode plates are fixedly connected to the cathode plate fixing mechanism. The cathode plates are placed vertically and a set distance is left between adjacent cathode plates.

[0010] A frame fitted over the outside of the cathode plate;

[0011] A moving mechanism located above the frame is used to drive the frame to move vertically back and forth outside the cathode plate;

[0012] The scraper assembly located within the frame is used to scrape away dirt from the surface of the cathode plate.

[0013] By adopting the above technical solution, multiple vertically placed cathode plates with a set distance between them are fixed by a cathode plate fixing mechanism, avoiding the swaying of the cathode plates during movement due to their own weight and large area, which is common in traditional methods, thus reducing damage to the hydraulic cylinder and cathode plates. A frame fitted over the outside of the cathode plates provides support and guidance for the scraper assembly, making the scraping process more stable and ensuring that the scraper can accurately remove dirt from the cathode plate surface. A moving mechanism drives the frame to move vertically back and forth, enabling the scraper assembly to comprehensively scrape the cathode plates, improving the coverage and efficiency of the scraping process. By setting the scraper assembly to act directly on the cathode plate surface, scale deposits such as calcium carbonate, magnesium carbonate, and magnesium hydroxide, as well as some sludge, adsorbed on the cathode plate, are scraped off, achieving the descaling function.

[0014] Optionally, the moving mechanism includes a crossbeam located above the electrolytic water tank and two parallel columns located on the lower end face of the crossbeam. The two columns are respectively located on both sides of the cathode plate fixing mechanism and fixedly connected to both ends of the frame. The two ends of the crossbeam are respectively provided with lifting components for driving the crossbeam to move up and down.

[0015] By adopting the above technical solution, the crossbeam and column form a stable support structure, which transmits the driving force of the lifting component to the frame, so that the frame remains stable during vertical reciprocating movement and reduces swaying. The two columns are respectively set on both sides of the cathode plate fixing mechanism to ensure that the frame is accurately positioned relative to the cathode plate during movement, so that the scraper assembly can evenly scrape the cathode plate.

[0016] Optionally, the lifting assembly is a lifting cylinder, and the lifting cylinder is connected to the crossbeam by bolts.

[0017] By adopting the above technical solution, the lifting cylinder, as a power source, has the characteristics of large driving force and smooth movement. It can reliably drive the crossbeam, column, frame and scraper assembly to move up and down, ensuring the stability and efficiency of the scraping process.

[0018] Optionally, the scraper assembly is fixed to the frame by bolts, and the frame is fixedly connected to the column and the column to the beam by bolts.

[0019] By adopting the above technical solution, the bolt connection method ensures that the components are firmly connected, preventing loosening due to vibration or other factors during the scraping process. It also facilitates the disassembly and maintenance of the components, reducing the maintenance cost of the equipment.

[0020] Optionally, the scraper assembly includes multiple scrapers arranged side by side, with each scraper positioned between two adjacent cathode plates. Each scraper is connected to the frame by an independent bolt, so that the spacing between adjacent scrapers can be adjusted independently.

[0021] By adopting the above technical solution, since the scaling on the cathode plate is uneven, the distance between adjacent scrapers can be adjusted independently to ensure that each scraper maintains a suitable distance from the corresponding cathode plate surface, thereby improving the targeting and effectiveness of scaling and avoiding incomplete scaling or damage to the cathode plate due to improper spacing.

[0022] Optionally, the frame is rectangular, and the internal dimensions of the frame are adapted to the shape of the cathode plate so that the scraper assembly covers the entire surface of the cathode plate.

[0023] By adopting the above technical solution, it is ensured that the scraper assembly can completely cover the entire surface of the cathode plate, avoiding blind spots in the scraping process and guaranteeing the comprehensiveness and thoroughness of the descaling.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. This utility model uses a cathode plate fixing mechanism to stably support multiple vertically arranged cathode plates, and then uses a moving mechanism to drive a scraper assembly to actively clean the cathode plates. This effectively avoids the movement and swaying problems caused by the weight of the cathode plates and their large area in traditional methods, significantly reduces damage to the cylinders and cathode plates, and extends the service life of the equipment.

[0026] 2. The frame is fitted onto the outside of the cathode plate to provide stable support and guidance for the scraper assembly. Combined with the moving mechanism, the frame is driven to move vertically back and forth, ensuring that the scraper assembly can fully cover the surface of the cathode plate, thereby achieving efficient removal of scale deposits such as calcium carbonate, magnesium carbonate, and magnesium hydroxide, as well as slime, and improving descaling efficiency. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of a scale scraping device used in an electrochemical descaling and purification equipment.

[0028] Figure 2 This is a top view schematic diagram of a scale scraping device used in an electrochemical descaling and purification equipment.

[0029] Figure 3 This is a side view of a scraping device used in an electrochemical descaling and purification equipment.

[0030] Explanation of reference numerals in the attached drawings: 1. Cathode plate fixing mechanism; 2. Cathode plate; 3. Frame; 4. Crossbeam; 5. Column; 6. Lifting cylinder; 7. Scraper. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a scale scraping device for an electrochemical descaling and purification equipment.

[0033] Reference Figure 1 A scraping device for an electrochemical descaling and purification equipment includes: a cathode plate 2 fixing mechanism 1 for fixing a cathode plate 2, a frame 3 sleeved on the outside of the cathode plate 2, a moving mechanism disposed above the frame 3, and a scraper 7 assembly disposed within the frame 3.

[0034] Reference Figures 1 to 3 Multiple sets of cathode plates 2 are fixedly connected to the cathode plate 2 fixing mechanism 1. The cathode plates 2 are placed vertically with a set distance between adjacent cathode plates 2. The moving mechanism is used to drive the frame 3 to move vertically back and forth outside the cathode plates 2. The scraper 7 assembly is used to scrape off the dirt on the surface of the cathode plates 2. By fixing multiple sets of vertically placed cathode plates 2 with a set distance between adjacent cathode plates 2 through the cathode plate 2 fixing mechanism 1, the swaying of the cathode plates 2 during movement due to their own weight and large area, as is the case in traditional methods, is avoided, and damage to the hydraulic cylinder and the cathode plates 2 is reduced. The frame 3 is sleeved on the outside of the cathode plates 2 to provide support for the scraper 7 assembly. The frame 3 is rectangular, and its internal dimensions are adapted to the shape of the cathode plate 2 to provide support and guidance. This allows the scraper 7 assembly to cover the entire surface of the cathode plate 2, making the scraping process more stable, avoiding blind spots, and ensuring the comprehensiveness and thoroughness of descaling. The frame 3 is driven to move vertically back and forth by a moving mechanism, enabling the scraper 7 assembly to scrape the cathode plate 2 comprehensively, improving the coverage and efficiency of the scraping. By setting the scraper 7 assembly to act directly on the surface of the cathode plate 2, it scrapes off the scale deposits such as calcium carbonate, magnesium carbonate, and magnesium hydroxide adsorbed on the cathode plate 2, as well as some of the slime, thus achieving the descaling function.

[0035] Reference Figures 1 to 3The moving mechanism includes a crossbeam 4 located above the electrolytic water tank and two parallel columns 5 located on the lower end face of the crossbeam 4. The two columns 5 are respectively located on both sides of the cathode plate 2 fixing mechanism 1 and are fixedly connected to both ends of the frame 3. The two ends of the crossbeam 4 are respectively provided with lifting components that drive the crossbeam 4 to move up and down. The crossbeam 4 and the columns 5 form a stable support structure, which transmits the driving force of the lifting components to the frame 3, so that the frame 3 remains stable during vertical reciprocating movement and reduces swaying. The two columns 5 are respectively located on both sides of the cathode plate 2 fixing mechanism 1 to ensure that the frame 3 is accurately positioned relative to the cathode plate 2 during movement, so that the scraper 7 assembly can evenly scrape the scale off the cathode plate 2.

[0036] Reference Figures 1 to 3 The lifting assembly is a lifting cylinder 6, which is bolted to the crossbeam 4. As a power source, the lifting cylinder 6 has the characteristics of large driving force and smooth movement, and can reliably drive the crossbeam 4, column 5, frame 3 and scraper 7 assembly to move up and down, ensuring the stability and efficiency of the scraping process.

[0037] Reference Figures 1 to 3 The scraper 7 assembly is fixed to the frame 3 by bolts. The frame 3 is fixed to the column 5, and the column 5 is fixed to the crossbeam 4 by bolts. The bolt connection method makes the connection between the components firm, ensuring that they will not loosen due to vibration or other factors during the scraping process. At the same time, it facilitates the disassembly and maintenance of the components and reduces the maintenance cost of the equipment.

[0038] Reference Figures 1 to 3 The scraper 7 assembly includes multiple scrapers 7 arranged side by side. The scrapers 7 are respectively located between two adjacent cathode plates 2. Each scraper 7 is connected to the frame 3 by an independent bolt, so that the spacing between adjacent scrapers 7 can be adjusted independently. Since the scaling on the cathode plates 2 is uneven, the spacing between adjacent scrapers 7 can be adjusted independently so that each scraper 7 can maintain a suitable distance from the corresponding cathode plate 2 surface, improving the targeting and effectiveness of scaling, and avoiding incomplete scaling or damage to the cathode plates 2 due to improper spacing.

[0039] The working principle of the scraping device for an electrochemical descaling and purification equipment according to an embodiment of this application is as follows: The cathode plate 2 fixing mechanism 1 first securely fixes multiple sets of vertically placed cathode plates 2 with a set adjacent spacing, avoiding the swaying of the cathode plates 2 during movement due to their own weight and large area in the traditional method, and reducing damage to the oil cylinder and the cathode plates 2 themselves; The frame 3 is sleeved on the outside of the cathode plates 2, and through cooperation with the moving mechanism, it plays a guiding and supporting role for the scraper 7 assembly. The internal size of the rectangular frame 3 is adapted to the shape of the cathode plates 2, ensuring that the scraper 7 assembly can fully cover the surface of the cathode plates 2, eliminating blind spots in the scraping, and achieving comprehensive and thorough descaling. During operation, the lifting cylinder 6 drives the crossbeam 4 to move, the crossbeam 4 drives the column 5 to move, and the column 5 drives the frame 3 to move back and forth vertically, keeping the frame 3 stable during movement and reducing swaying. This ensures that the scraper 7 assembly can evenly scrape the scale off the cathode plate 2. The scraper 7 assembly is fixed to the frame 3 with bolts, and each scraper 7 is connected to the frame 3 with an independent bolt. The spacing between adjacent scrapers 7 can be adjusted independently according to the actual situation of uneven scaling on the cathode plate 2, so that each scraper 7 maintains a suitable distance from the corresponding cathode plate 2 surface. Driven by the frame 3, the scraper 7 assembly moves vertically and acts directly on the surface of the cathode plate 2, scraping off scale deposits such as calcium carbonate, magnesium carbonate, and magnesium hydroxide, as well as some sludge, to achieve the descaling function.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A scale scraping device for an electrochemical descaling and purification equipment, characterized in that, include: A cathode plate (2) fixing mechanism (1) is fixedly installed on the body of the electrolytic water tank. Multiple sets of cathode plates (2) are fixedly connected to the cathode plate (2) fixing mechanism (1). The cathode plates (2) are placed vertically and a set distance is left between adjacent cathode plates (2). A frame (3) fitted onto the outside of the cathode plate (2); A moving mechanism located above the frame (3) is used to drive the frame (3) to move vertically back and forth outside the cathode plate (2); The scraper (7) assembly located within the frame (3) is used to scrape off dirt from the surface of the cathode plate (2).

2. The scale scraping device for an electrochemical descaling and purification equipment according to claim 1, characterized in that: The moving mechanism includes a crossbeam (4) located above the electrolytic water tank and two parallel columns (5) located on the lower end face of the crossbeam (4). The two columns (5) are respectively located on both sides of the cathode plate (2) fixing mechanism (1) and fixedly connected to both ends of the frame (3). The two ends of the crossbeam (4) are respectively provided with lifting components that drive the crossbeam (4) to move up and down.

3. The scale scraping device for an electrochemical descaling and purification equipment according to claim 2, characterized in that: The lifting assembly is a lifting cylinder (6), and the lifting cylinder (6) is connected to the crossbeam (4) by bolts.

4. The scale scraping device for an electrochemical descaling and purification equipment according to claim 2, characterized in that: The scraper (7) assembly is fixed to the frame (3) by bolts, and the frame (3) is fixedly connected to the column (5) and the column (5) to the beam (4) by bolts.

5. A scale scraping device for an electrochemical descaling and purification equipment according to claim 1 or 4, characterized in that: The scraper (7) assembly includes multiple scrapers (7) arranged side by side. The scrapers (7) are respectively located between two adjacent cathode plates (2). Each scraper (7) is connected to the frame (3) by an independent bolt so that the spacing between adjacent scrapers (7) can be adjusted independently.

6. The scale scraping device for an electrochemical descaling and purification equipment according to claim 1, characterized in that: The frame (3) is rectangular, and the internal dimensions of the frame (3) are adapted to the shape of the cathode plate (2) so that the scraper (7) assembly covers the entire surface of the cathode plate (2).

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