Electrode plate descaling mechanism and electrochemical descaling system

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an electrochemical descaling system of an electrode plate descaling mechanism. The electrode plate descaling mechanism comprises a lifting module and a scraper module, the lifting module comprises a first motor, a gearbox, a first pulley block and a steel wire rope; the first motor is arranged in the box body; the first motor is connected with the gearbox, the first pulley block is arranged at the output end of the gearbox, and the steel wire rope is wound around the first pulley block. The scraper module comprises a knife rest, a knife holder, a scraper and a second pulley block, the scraper is arranged on the knife holder, and the knife holder is arranged on the knife rest; a descaling channel is formed between the scrapers; the electrode plate penetrates through the descaling channel, and the scraper scrapes dirt on the electrode plate; the second pulley block is arranged on the tool rest and wound with the steel wire rope. And the scraper module is lifted by adopting a pulley block and a steel wire rope, so that the scraper module can work in the box body and is not limited by height, and the deployment flexibility is better.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an electrochemical descaling system for an electrode plate descaling mechanism. Background Technology

[0002] Electrochemical descaling equipment typically consists of an electrolytic cell, electrodes (anode and cathode), electrolyte, and a control system. When the positive and negative terminals of an external power supply are connected to the anode and cathode of the electrolytic cell, respectively, the solute ions in the electrolyte begin to be affected by the electric field, undergoing redox reactions. Oxidation occurs at the anode, generating high-valence ions or gases (such as oxygen), while reduction occurs at the cathode, generating low-valence ions or hydrogen gas. These reactions alter the chemical state of the water, forming compounds or particles that are less prone to scaling, thus effectively preventing scale formation.

[0003] During electrochemical descaling, scale forms on the electrode plates. This scale needs to be removed promptly to ensure the electrode plates function properly. The most common method for cleaning electrode plates is to use a scraper to remove the scale. Some scraper cleaning mechanisms on the market use a lifting structure, and some of these mechanisms extend out of the housing during operation. This can be limiting in height-restricted spaces, resulting in poor deployment flexibility.

[0004] For example, Chinese patent application number CN202022355865.3 discloses a lifting electrochemical descaling device for circulating water purification, specifically stating that "the lifting assembly includes a load-bearing hanger, a vertical beam frame, an electric guide rail, a lifting slider, a descaling blade holder, and descaling blade grooves. The vertical beam frame is located inside one side of the water storage tank. Load-bearing hangers are fixedly installed on both sides of the top end face of the vertical beam frame by welding, and the other end of the load-bearing hanger is connected to the fixed end of the top end face of the water storage tank. An electric guide rail is fixedly installed in the center of the end face of the vertical beam frame, and a lifting slider is installed on the outer side of the electric guide rail. A descaling blade holder is fixedly installed in the center of the end face of the lifting slider, and descaling blade grooves are provided on both sides of the end face of the descaling blade holder." During operation, the lifting assembly extends out of the water storage tank, which is limited in height-constrained spaces, resulting in poor deployment flexibility.

[0005] For example, Chinese patent application number CN202210462772.1 discloses an automatic descaling electrochemical water treatment device, specifically stating that "the lifting drive device is one of the main components of this invention, which realizes the lifting of the scraper, thereby achieving descaling of the entire device without disassembly and without stopping the machine. The drive device can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The lifting drive device includes four electric cylinders, which are quadrilateral in shape and vertically fixed to the top cover. The end of the cylinder shaft of the electric cylinder is fixed to the upper surface of the scraper." The lifting drive device and telescopic rod extend out of the housing, which is restrictive in height-constrained spaces and results in poor deployment flexibility. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide an electrode plate descaling mechanism whose scraper module is not limited by space height and has good deployment flexibility, thereby overcoming the shortcomings of the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This application provides an electrode plate descaling mechanism, including a lifting module and a scraper module; the lifting module includes a first motor, a gearbox, a first pulley group, and a wire rope; the first motor is disposed in the housing; the first motor is connected to the gearbox, the first pulley group is disposed at the output end of the gearbox, and the wire rope is wound around the first pulley group;

[0009] The scraper module includes a blade holder, a blade base, a scraper, and a second pulley assembly. The scraper is mounted on the blade base, and the blade base is mounted on the blade holder. A descaling channel is formed between the scrapers. An electrode plate passes through the descaling channel, and the scraper removes the dirt from the electrode plate. The second pulley assembly is mounted on the blade holder, and a steel wire rope is wound around the second pulley assembly.

[0010] Preferably, a first pulley group is provided on both the left and right sides of the housing; a second pulley group is provided on both the left and right sides of the tool holder, and the first pulley group and the second pulley group are connected by a steel wire rope.

[0011] Preferably, the lifting module further includes a slide rail and a slider. The slide rail is disposed inside the housing, and the slider is disposed on the tool holder. The slider slides up and down on the slide rail.

[0012] Preferably, the scraper has a mounting portion and a cutting edge, the cutting edge and the mounting portion are perpendicular to each other, and the mounting portion is provided with a mounting hole; a first fastener passes through the mounting hole and the blade holder; the distance between the cutting edge and the electrode plate is less than 1 mm.

[0013] Preferably, the width of the scraper is greater than the width of the electrode plate, and the thickness of the scraper is between 1-2 mm.

[0014] This application provides an electrochemical descaling system, including the aforementioned electrode plate descaling mechanism, a housing, a sludge discharge module disposed at the bottom of the housing, an inlet disposed at the high left side of the housing, and an outlet disposed at the low right side of the housing; the electrode plates are disposed on a mounting frame at intervals.

[0015] The sludge discharge module includes a sludge hopper located at the bottom of the housing and a screw installed in the sludge hopper; the screw can discharge the sludge in the sludge hopper through the drain valve on the sludge hopper.

[0016] Preferably, the electrode plates have a hollow structure; an ion membrane is also disposed between the electrode plates.

[0017] Preferably, the electrode plate includes a cathode plate and an anode plate, and the ion membrane is disposed on the anode plate.

[0018] Preferably, the anode plate is a ruthenium electrode plate; the cathode plate is a stainless steel electrode plate.

[0019] Preferably, there is one more cathode plate than anode plate, and the anode plates and cathode plates are arranged alternately, with the outermost one being the cathode plate.

[0020] Preferably, the sludge hopper has a structure that is wide at the top and narrow at the bottom; the screw is inserted through the bottom of the sludge hopper.

[0021] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, the lifting module is used to lift the scraper module, allowing the scraper to move up and down, thereby scraping away the dirt on the electrode plate. The scraper module is lifted using a pulley system and wire rope. This design allows the scraper module to operate inside the housing without height limitations, resulting in better deployment flexibility. Attached Figure Description

[0022] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram illustrating the cooperation between the lifting module and the lifting scraper module according to an embodiment of this utility model.

[0024] Figure 3 This is an embodiment of the present utility model. Figure 2 Partial schematic diagram.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10. Lifting module; 11. First motor; 12. Gearbox; 13. First pulley block; 14. Wire rope; 20. Scraper module; 21. Scraper holder; 22. Scraper base; 23. Scraper; 24. Mounting part; 25. Blade; 26. Descaling channel; 27. Second pulley block; 28. Second motor; 30. Housing; 31. Inlet; 32. Outlet; 33. Mounting bracket; 34. Sludge hopper; 35. Screw; 36. Drain valve; 37. Anode plate; 38. Ion exchange membrane; 39. Cathode plate. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] Example 1

[0029] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which is an electrode plate descaling mechanism.

[0030] The lifting module 10 uses a combination of steel wire rope 14 and pulley system to lift the scraper module 20. With this design, the scraper module 20 works inside the housing 30 and does not need to move out of the housing 30. It is not limited by height and has better deployment flexibility.

[0031] This application provides an electrode plate descaling mechanism, including a lifting module 10 and a scraper module 20; the lifting module 10 includes a first motor 11, a gearbox 12, a first pulley group 13, and a steel wire rope 14; the first motor 11 is disposed in a housing 30; the first motor 11 is connected to the gearbox 12, the first pulley group 13 is disposed at the output end of the gearbox 12, and the steel wire rope 14 is wound around the first pulley group 13; the scraper module 20 includes a blade holder 21, a blade base 22, a scraper 23, and a second pulley group 27, the scraper 23 is disposed in the blade base 22, and the blade base 22 is disposed in the blade holder 21; a descaling channel 26 is formed between the scrapers 23; the electrode plate passes through the descaling channel 26, and the scraper 23 scrapes away the dirt on the electrode plate; the second pulley group 27 is disposed in the blade base 21, and the steel wire rope 14 is wound around the second pulley group 27. The power of the first motor 11 is output through the gearbox 12, and a steel wire rope 14 is wound on the output shaft of the gearbox 12. The steel wire rope 14 passes through the first pulley group 13 and the second pulley group 27. The operation of the first motor 11 causes the steel wire rope 14 to be wound or unwound, thereby allowing the blade holder 21 to move and the scraper 23 to scrape away the dirt on the electrode plate. The blade holder 21 has a certain weight, and when the steel wire rope 14 is lowered, the blade holder 21 will move downward. When the blade holder 21 moves, the scraper 23 scrapes away the dirt on the electrode plate. The scraper 23 is adjustablely mounted on the blade holder 22, which allows for easy adjustment of the distance between the scraper 23 and the electrode plate, thereby adjusting the scraping depth. The scraper 23 can be fastened to the blade holder 22 with screws, and the blade holder 22 can be fastened to the blade holder 21 with screws. In this embodiment, there are two first motors 11, which move synchronously through motor encoders.

[0032] Preferably, the housing 30 is provided with a first pulley group 13 on both its left and right sides; the tool holder 21 is provided with a second pulley group 27 on both its left and right sides, and the first pulley group 13 and the second pulley group 27 are connected by a steel wire rope 14. With the first pulley group 13 and the second pulley group 27 on both sides, the left and right sides of the tool holder 21 can be simultaneously lifted or lowered by force. This design allows the tool holder 21 to move more smoothly and prevents it from tilting.

[0033] Preferably, the lifting module 10 further includes a slide rail and a slider. The slide rail is disposed inside the housing 30, and the slider is disposed on the tool holder 21, sliding up and down on the slide rail. The cooperation of the slide rail and the slider can prevent the tool holder 21 from deviating and also make the movement of the tool holder 21 more stable.

[0034] Preferably, the scraper 23 has a mounting portion 24 and a cutting edge 25, which are perpendicular to each other. The mounting portion 24 has mounting holes. A first fastener passes through the mounting holes and the blade holder 22. The distance between the cutting edge 25 and the electrode plate is less than 1 mm. In this embodiment, the scraper 23 is L-shaped. The first fastener is a screw, which secures the scraper 23 and the blade holder 22 together. There are several mounting holes; by selecting different mounting holes, the distance between the scrapers 23 can be adjusted. The distance between the cutting edge 25 and the electrode plate is less than 1 mm, which can remove dirt without damaging the electrode plate.

[0035] Preferably, the width of the scraper 23 is greater than the width of the electrode plate, ensuring that the dirt on the electrode plate is thoroughly scraped off. The thickness of the scraper 23 is between 1-2 mm, and the scraper 23 has a certain strength, rigidity, and resistance to deformation.

[0036] Example 2

[0037] Please refer to Figure 1-2 As shown, this application provides an electrochemical descaling system, including the aforementioned electrode plate descaling mechanism, a housing 30, and a sludge discharge module 20 disposed at the bottom of the housing 30. An inlet 31 is located at the high left side of the housing 30, and an outlet 32 ​​is located at the low right side of the housing 30. The electrode plates are spaced apart on a mounting frame 33. The sludge discharge module 20 includes a sludge hopper 34 at the bottom of the housing 30 and a screw 35 disposed in the sludge hopper 34. The screw 35 discharges sludge from the sludge hopper 34 through a drain valve 36. The drain valve 36 is located in the sludge hopper 34. A second motor 28 drives the screw 35 to rotate, and the screw 35 discharges dirt and sludge from the sludge hopper 34 through the drain valve 36. The high-end inlet 31 and the bottom outlet of the housing 30 facilitate the discharge of wastewater under gravity. The electrode plates are preferably powered by direct current, and the current and voltage of the electrode plates are adjusted according to the total electrode area. The electrode plates can be fixed to the mounting bracket 33 with screws or similar fasteners. An insulating pad is placed between the electrode plates and the mounting bracket 33 for insulation. The inlet 31 is located on the upper left side of the electrochemical descaling zone, and the outlet 32 ​​is located on the lower right side. During system operation, the inlet flow rate is adjusted to ensure water covers the entire reaction zone. A water pump drives wastewater from the upper inlet 31 into the tank 30, and then it flows out through the outlet 32. This chemical descaling system requires no downtime and can perform descaling and cleaning simultaneously, allowing for continuous operation and saving downtime maintenance time and costs.

[0038] Preferably, the electrode plates have a perforated structure; an ion exchange membrane 38 is also disposed between the electrode plates. The ion exchange membrane 38 can be a cellulose membrane, anion exchange membrane 38, cation exchange membrane 38, etc. Since the electrode plates are all perforated, water can flow through the perforations, facilitating chemical descaling.

[0039] Preferably, the electrode plate includes a cathode plate 39 and an anode plate 37, and the ion membrane 38 is disposed on the anode plate 37.

[0040] Preferably, the anode plate 37 is a ruthenium electrode plate; the cathode plate 39 is a stainless steel electrode plate. Preferably, there is one more cathode plate 39 than anode plate 37, and the anode plate 37 and cathode plate 39 are arranged alternately, with the outermost one being the cathode plate 39. The number of anode plates 37 and cathode plates 39 are n and n+1 respectively, where n is adjusted according to the influent flow rate and water quality. The anode plate 37 can be a catalytic electrode such as a titanium plate or ruthenium electrode plate, and the cathode plate 39 can be an inert stabilizing electrode such as a stainless steel plate. The anode plate 37 and cathode plate 39 are arranged alternately and fixed inside the housing 30. A cellulose membrane or other ion exchange membrane structure 38 can be placed between the anode plate 37 and the cathode plate 39. In this embodiment, the cathode plate 39 is an inert stabilizing electrode such as a stainless steel plate, which is the main area for descaling. Local alkalinity is generated through water electrolysis, causing hardness ions such as calcium and magnesium in the water to precipitate on the cathode surface. Then, the scraper module 20 in the electrode regeneration zone removes the hydroxide precipitate from the cathode surface. In the anode plate 37 area, the oxidation process generates active free radicals such as hydroxyl and chloric acid radicals, effectively reducing COD in the circulating water and inhibiting algae growth. The electrode plate is a perforated plate, allowing water flow through the perforations. The number of anode plates 37 is one less than the number of cathode plates 39. The power control system provides current to the electrodes in the electrochemical descaling zone, and the current and voltage settings are adjusted according to the total electrode area. The anode is connected to the positive terminal of the power control system. A clearance channel is provided on the tool holder 21, allowing the anode plates 37 to move up and down within it. Therefore, both the anode plates 37 and the cathode plates 39 can move up and down within the tool holder 21.

[0041] Preferably, the sludge hopper 34 has a wide top and a narrow bottom; the screw 35 passes through the bottom of the sludge hopper 34. The dirt on the motor plate is scraped off and then falls into the sludge hopper 34 to settle. The screw 35 passes horizontally through the bottom of the sludge discharge hopper, and is driven to rotate by the second motor, carrying the sludge to the discharge valve 36 for discharge.

[0042] In summary, the key design feature of this invention is that the lifting module 10 uses a combination of a steel wire rope 14 and a pulley system to lift the scraper module 20, which then scrapes away dirt from the electrode plates within the housing 30. When the scraper module 20 is in operation, its working height is not limited, resulting in greater deployment flexibility.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An electrode plate descaling mechanism characterized by: The lifting module comprises a first motor, a gearbox, a first pulley set and a steel wire rope; the first motor is arranged in the box body; the first motor is connected with the gearbox; the first pulley set is arranged at the output end of the gearbox; and the steel wire rope is wound around the first pulley set. The scraper module comprises a knife holder, a knife seat, scrapers and a second pulley set; the scrapers are arranged in the knife seat; and the knife seat is arranged in the knife holder; and the scrapers form a descaling channel. The electrode plates are arranged in the descaling channel; the scrapers remove the dirt on the electrode plates; the second pulley set is arranged in the knife holder; and the steel wire rope is wound around the second pulley set.

2. A mechanism for removing scale from an electrode plate as defined in claim 1, wherein: The left and right sides of the box body are provided with the first pulley sets; the left and right sides of the knife holder are provided with the second pulley sets; and the steel wire rope is connected between the first pulley sets and the second pulley sets.

3. The electrode plate cleaning mechanism of claim 1, wherein: The lifting module further comprises a sliding rail and a sliding block; the sliding rail is arranged in the box body; and the sliding block is arranged in the knife holder; and the sliding block slides up and down on the sliding rail.

4. The electrode plate cleaning mechanism of claim 1, wherein: The scraper has a mounting portion and a blade portion; the blade portion and the mounting portion are perpendicular to each other; the mounting portion is provided with a mounting hole; the first fastener is arranged in the mounting hole and the knife seat; and the distance between the blade portion and the electrode plates is less than 1 mm.

5. A mechanism for removing scale from an electrode plate as claimed in claim 1 or 4, wherein: The width of the scraper is greater than the width of the electrode plates; and the thickness of the scraper is between 1 mm and 2 mm.

6. An electrochemical descaling system characterized by: The electrode plate descaling mechanism comprises the electrode plate descaling mechanism according to any one of claims 1-5, a box body, a sludge discharging module arranged at the bottom of the box body, a water inlet arranged at the left high end of the box body, a water outlet arranged at the right low end of the box body, and electrode plates arranged on the mounting frame at intervals. The sludge discharging module comprises a sludge hopper arranged at the bottom of the box body and a screw arranged in the sludge hopper; the screw can discharge the sludge in the sludge hopper from a sludge discharge valve on the sludge hopper.

7. An electrochemical descaling system according to claim 6, wherein: The electrode plates comprise hollow cathode plates and anode plates; and the anode plates are provided with ion membranes.

8. An electrochemical descaling system according to claim 7, wherein: The anode plates are ruthenium electrode plates; and the cathode plates are stainless steel electrode plates.

9. An electrochemical descaling system according to claim 7 or 8, characterised in that: The cathode plates are more than the anode plates; the anode plates and the cathode plates are arranged alternately; and the outermost cathode plates are arranged at the outermost sides.

10. An electrochemical descaling system according to claim 6, wherein: The sludge hopper is wide at the top and narrow at the bottom; and the screw is arranged at the bottom of the sludge hopper.

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