An automatic descaling electrochemical water treatment apparatus

Abstract

The application discloses an automatic descaling electrochemical water treatment equipment, which comprises a box body, a top cover, a lifting driving device, a scraper, an electrolysis device, a protection box, a water outlet pipe and a bottom frame; the box body is fixed on the bottom frame; the top cover is fixed above the box body, and the top cover and the box body form an electrolysis cavity; the electrolysis device comprises an anode assembly and a cathode assembly; the cathode assembly comprises N cathode plates and the inner wall of the box body; the anode assembly comprises N+1 anode plates; the cathode plates and the anode plates are fixed in parallel and equidistantly below the top cover; the left surface of the leftmost anode plate is the inner wall of the box body, and the right surface of the rightmost anode plate is the inner wall of the box body; the part of the cathode plates penetrating through the top cover is provided with a cathode terminal post, and the part of the anode plates penetrating through the top cover is provided with insulation sealing and an anode terminal post. The automatic descaling electrochemical water treatment equipment can realize automatic descaling, has high efficiency and strong electrolysis capacity, and the sewage treated by the equipment can meet the industrial demand.

Description

Technical Field

[0001] This invention relates to the field of electrochemistry, and in particular to an automatic descaling electrochemical water treatment device. Background Technology

[0002] Currently, with the rapid development of my country's economy, the shortage of domestic water resources and the environmental pollution caused by industrial wastewater are becoming increasingly serious. How to save water and reduce the environmental pollution caused by industrial wastewater, and make industrial production green and environmentally friendly, are urgent problems to be solved.

[0003] In terms of water resource usage, industrial water use accounts for more than 90%, and among industrial water use, circulating cooling water accounts for 60% to 90%. Therefore, water conservation is mainly industrial water conservation, and industrial water conservation mainly involves reducing the water consumption of circulating cooling water systems.

[0004] Currently, the main methods for treating circulating cooling water include chemical dosing and electrochemical water treatment.

[0005] The chemical agents used in chemical dosing mainly include corrosion inhibitors, scale inhibitors, and bactericides, which are used to control scaling and corrosion of pipes and equipment in the circulating water system. In addition to the high cost of the agents used for water treatment and the high operating costs, there are also the following problems: (1) The amount of chemical agents used is large, and their transportation and storage will pollute the environment; (2) The agents themselves will form suspended solids and sediments in the circulating water system, polluting the circulating water quality; (3) Adding agents will cause an increase in the conductivity of the circulating water system, accelerating the system's sewage discharge; (4) The sewage contains water treatment agents, which will cause secondary pollution to the environment along with the discharge of industrial wastewater.

[0006] Electrochemical water treatment refers to a technological process in which, under the influence of an external electric field and within specific electrochemical water treatment equipment, a series of designed chemical reactions, electrochemical processes, or physical processes generate a large number of free radicals. These free radicals then utilize their strong oxidizing properties to degrade pollutants in wastewater. As a clean treatment process, electrochemical technology has unparalleled advantages compared to other water treatment technologies and is an important method for addressing the negative problems associated with the use of chemical agents in industrial water treatment. Electrochemical circulating water quality stabilization treatment technology exhibits excellent corrosion inhibition, scale inhibition, sterilization, and algae removal effects. Circulating water using this technology does not require the addition of any chemical agents, and the forced discharge volume is low, saving not only on chemical and makeup water costs but also providing significant energy conservation, emission reduction, and environmental protection benefits.

[0007] Current electrochemical water treatment processes and equipment have the following shortcomings:

[0008] 1. The equipment is not very intelligent, and it needs to be stopped during descaling. The scale needs to be cleaned manually, which is inefficient and will seriously affect the life of the equipment and the operation of the system.

[0009] 2. Equipment that uses a cylindrical reaction chamber and a motor-driven rotating scraper for descaling cannot use the inner wall of the reaction chamber as a cathode. The area ratio of the cathode to the anode is too low, resulting in a lower descaling capacity for equipment with the same anode area.

[0010] 3. Equipment with a horizontally positioned reaction chamber is more troublesome to replace the anode for maintenance, which is not conducive to the long-term stable operation of the equipment.

[0011] There is an urgent need for an automatic descaling electrochemical water treatment device that can automatically remove scale, is highly efficient, has strong electrolysis capabilities, and is easy to maintain, in order to solve the above-mentioned technical problems. Summary of the Invention

[0012] To address the aforementioned problems, this invention provides an automatic descaling electrochemical water treatment device. This device can achieve automatic descaling with high efficiency and strong electrolysis capability. Wastewater treated by this device can meet industrial needs.

[0013] The present invention solves the above-mentioned technical problems through the following technical solution:

[0014] This invention provides an automatic descaling electrochemical water treatment device, comprising a tank, a top cover, a lifting drive device, a scraper, an electrolysis device, a protective box, an outlet pipe, and a base frame; the tank is fixed to the base frame; the top cover is fixed above the tank, and the top cover and the tank form an electrolysis chamber; the electrolysis device includes an anode assembly and a cathode assembly, the cathode assembly includes the inner wall of the tank and N cathode plates, the anode assembly includes N+1 anode plates, the cathode plates and anode plates are fixed parallel and equidistantly below the top cover, the left side of the leftmost anode plate is the inner wall of the tank, and the right side of the rightmost anode plate is the inner wall of the tank; a cathode terminal is provided on the portion of the cathode plate penetrating the top cover, and the anode... The portion of the plate penetrating the top cover is equipped with an insulating seal and an anode terminal. A protective box is installed outside the cathode terminal and the anode terminal, and a cable through hole is provided on the protective box. The lifting drive device is fixed above the top cover, and the telescopic rod of the lifting drive device is fixedly connected to the scraper. The scraper includes a fixed plate and a scraper blade. The fixed plate has several cathode through holes corresponding to the cathode plate, and several anode through holes corresponding to the anode plate. The scraper blade is fixedly connected to the edge of the cathode through holes. The base frame is fixed below the tank. The bottom end of the tank has a circulating water inlet and a scale outlet. The water outlet pipe penetrates the top cover and is connected to the electrolysis chamber.

[0015] In this invention, the housing is used to house an electrolysis device so that the circulating water to be treated is electrolyzed in the electrolysis chamber.

[0016] Preferably, the upper part of the box is a cuboid structure, the lower part of the box is a cone structure, and the lower part of the box is connected to the circulating water inlet and the scale outlet;

[0017] Preferably, the housing and the top cover are connected by a flange.

[0018] In this invention, the top cover is used to install the electrolysis device and to seal the electrolysis chamber;

[0019] Preferably, to facilitate the movement of the top cover, several lifting lugs are provided on the top cover.

[0020] In this invention, the lifting drive device is one of the main components of the invention. It realizes the lifting of the scraper, thereby realizing the descaling of the entire device without disassembly and can achieve descaling without stopping the machine. The drive device can be a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0021] Preferably, the lifting drive device includes four electric cylinders, which are quadrilateral in shape and vertically fixed to the top cover. The ends of the telescopic rods of the electric cylinders are fixed to the upper surface of the scraper.

[0022] In this invention, when the drive device conflicts with the anode plate during placement, the anode plate at the corresponding position can be removed to avoid interference. In this case, the number of anode plates is N-1 or N-2.

[0023] In this invention, the scraper is used to remove scale, and the lifting drive device drives the scraper to move up and down, thereby scraping off the scale attached to the cathode plate.

[0024] Preferably, the fixed plate is a metal plate, and the scraper is a plastic scraper; the cathode plate is a 5-10mm thick carbon steel plate, and the width of the cathode through hole is 15-30mm; when the scraper is installed on the edge of the fixed plate, the scraper and the cathode plate are in very close contact, and when scale is attached to the cathode plate, the downward movement of the scraper will scrape off the scale through the scraper.

[0025] Preferably, the four corners of the fixed plate are also provided with positioning pulleys or balls, which are in contact with the four inner corners of the housing to achieve smooth guidance of the scraper.

[0026] Preferably, the fixed disc is provided with reinforcing ribs inside to further enhance the stability of the scraper.

[0027] In this invention, the electrolysis device is implemented using a conventional cathode plate and anode plate. The cathode plate and anode plate of this invention are fixed on the top cover. When the top cover is removed, the cathode plate and anode plate are also removed from the electrolysis chamber, allowing for thorough cleaning and solving the drawback of requiring complete disassembly for cleaning in the past.

[0028] Preferably, the number of cathode plates is 5 and the number of anode plates is 6.

[0029] In this invention, the circulating water inlet is used to allow circulating water to flow in, the outlet pipe is used to allow circulating water to flow out, and the scale outlet is used to allow the cleaned scale to flow out with the circulating water and enter the subsequent treatment process.

[0030] In this invention, the base frame is used to support the box body;

[0031] Preferably, the base frame includes four support rods, which are fixed to the four bottom corners of the box. The height of the support rods is half the height of the box. The support rods and the bottom of the box are provided with reinforcing ribs to improve the fixation between them.

[0032] In this invention, to facilitate observation of the scale buildup inside the tank;

[0033] Preferably, an observation window is provided on the front of the housing.

[0034] The working principle of the automatic descaling electrochemical water treatment equipment of the present invention is as follows: the circulating water to be treated enters the tank from the circulating water inlet and is electrolyzed under the action of the electrolysis device to produce scale. The scale adheres to the cathode plate and flows out from the outlet pipe on the top cover. When the scale accumulates to a certain extent, the lifting drive device is activated to drive the scraper to move down, scrape off the scale, and let it fall below the electrolysis chamber. It then flows into the post-treatment process from the scale outlet along with the circulating water. When there is a problem with the cathode plate or anode plate, the top cover can be removed for maintenance, which is convenient and quick.

[0035] The automatic descaling electrochemical water treatment equipment of this invention is specifically applied to a circulating water system. The general installation process is as follows: the operation of each component on the tank is realized through the power cabinet and control cabinet. The scale outlet is connected to a three-stage sedimentation tank, wherein tank 1 and tank 2 are sludge tanks, and tank 3 is a clear water tank. Tanks 1 and 2 are equipped with sludge pumps and sludge-water interface instruments to facilitate the transfer of sludge; tank 3 is equipped with a clear water pump and a water level detector to facilitate the pumping of the upper layer of clear water in the clear water tank into the circulating water tank for reuse.

[0036] The positive and progressive effects of this invention are as follows: The automatic descaling electrochemical water treatment equipment of this invention can achieve automatic descaling without the need for shutdown, and is highly efficient; the special design of the electrolysis device achieves a strong electrolysis capacity; the integrated structure of the top cover, cathode plate, and anode plate facilitates the cleaning and maintenance of the device; the wastewater treated by the equipment of this invention can meet industrial needs. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the automatic descaling electrochemical water treatment equipment in Example 1;

[0039] Figure 2 This is a schematic diagram of the top cover and electrolysis device of the automatic descaling electrochemical water treatment equipment in Example 1;

[0040] Figure 3 This is a schematic diagram of the top cover of the replacement structure of the automatic descaling electrochemical water treatment equipment in Example 1;

[0041] Figure 4 This is a schematic diagram of the scraper of the automatic descaling electrochemical water treatment equipment in Example 1.

[0042] 1. Box body;

[0043] 2. Electrolysis chamber;

[0044] 3. Top cover;

[0045] 4. Lifting drive device;

[0046] 5. Telescopic pole;

[0047] 6. Scraping the plate;

[0048] 7. Anode plate;

[0049] 8. Cathode plate;

[0050] 9. Circulating water inlet;

[0051] 10. Water outlet pipe;

[0052] 11. Scale outlet;

[0053] 12. Base frame;

[0054] 13. Protective box;

[0055] 14. Cable through hole;

[0056] 15. Cathode terminal;

[0057] 16. Anode terminal;

[0058] 17. Hanging lugs;

[0059] 18. Anode through hole;

[0060] 19. Cathode through-hole;

[0061] 20. Reinforcing ribs;

[0062] 21. Positioning pulley. Detailed Implementation

[0063] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0064] Example 1

[0065] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment provides an automatic descaling electrochemical water treatment device, including a tank 1, a top cover 3, a lifting drive device 4, a scraper 6, an electrolysis device, a protective box 13, a water outlet pipe 10, and a base frame 12; the tank 1 is fixed on the base frame 12; the top cover 3 is fixed above the tank 1, and the top cover 3 and the tank 1 form an electrolysis chamber 2; the electrolysis device includes an anode assembly and a cathode assembly, the cathode assembly includes the inner wall of the tank 1 and 5 cathode plates 8, the anode assembly includes 4 anode plates 7, the cathode plates 8 and anode plates 7 are parallel and equidistantly fixed below the top cover 3, the left side of the leftmost anode plate 7 is the inner wall of the tank 1, and the right side of the rightmost anode plate 7 is the inner wall of the tank 1; the portion of the cathode plate 8 that penetrates the top cover 3 is provided with a cathode terminal 15, and the portion of the anode plate 7 that penetrates the top cover 3 is provided with a cathode terminal 15. The cover 3 is equipped with an insulating seal (inside the hole, not shown in the figure) and an anode terminal 16. The protective box 13 covers the outside of the cathode terminal 15 and the anode terminal 16. The protective box 13 has a cable through hole 14. The lifting drive device 4 is fixed above the top cover 3. The telescopic rod 5 of the lifting drive device 13 and the scraper 6 are fixedly connected. The scraper 6 includes a fixed plate and a scraper. The fixed plate has a cathode through hole 19 corresponding to the cathode plate 8 and an anode through hole 18 corresponding to the anode plate 7. The scraper is fixedly connected to the edge of the cathode through hole 19. The base frame 12 is fixed below the box body 1. The bottom of the box body 1 has a circulating water inlet 9 and a scale outlet 11 respectively. The water outlet pipe 10 passes through the top cover 3 and is connected to the electrolysis chamber 2.

[0066] In this embodiment, the housing 1 is used to house an electrolysis device so that the circulating water to be treated is electrolyzed in the electrolysis chamber 2; the upper part of the housing 1 is a cuboid structure, the lower part of the housing 1 is a cone structure, and the lower part of the housing 1 is connected to the circulating water inlet 9 and the scale outlet 11; the housing 1 is connected to the top cover 3 by a flange.

[0067] In this embodiment, the top cover 3 is used to install the electrolysis device and to seal the electrolysis chamber 2.

[0068] In this embodiment, the lifting drive device 4 is one of the main components. It enables the scraper 6 to be lifted and lowered, thereby enabling the entire device to remove scale without disassembly and to remove scale without stopping the machine. The drive device is an electric cylinder, which is vertically fixed on the top cover 3. The end of the telescopic rod of the electric cylinder is fixed on the upper surface of the scraper 6.

[0069] In this embodiment, the scraper 6 is used to remove scale. The lifting drive device 4 drives the scraper 6 to move up and down, thereby scraping off the scale attached to the cathode plate 8. The fixed plate is a metal plate, and the scraper is a plastic scraper. The cathode plate 8 is a 5mm carbon steel plate, and the width of the cathode through hole is 18mm. When the scraper is installed on the edge of the fixed plate, the scraper and the cathode plate 8 are in very close contact. When scale is attached to the cathode plate 8, the downward movement of the scraper 6 will scrape off the scale through the scraper.

[0070] In this embodiment, positioning pulleys 21 are provided at the four corners of the fixed plate, and the positioning pulleys 21 are in contact with the four inner corners of the box 1 to achieve smooth guidance of the scraper 6; the interior of the fixed plate is provided with reinforcing ribs 20 to further enhance the firmness of the scraper 6.

[0071] In this embodiment, the electrolysis device is implemented by a conventional combination of cathode plate and anode plate. In this embodiment, the cathode plate 8 and anode plate 7 are fixed on the top cover 3. When the top cover 3 is removed, the cathode plate 8 and anode plate 7 are also removed from the electrolysis chamber 2, which can be thoroughly cleaned, thus solving the drawback of the previous need for complete disassembly for cleaning.

[0072] In this embodiment, the circulating water inlet 9 is used to allow circulating water to flow in, the outlet pipe 10 is used to allow circulating water to flow out, and the scale outlet 11 is used to allow the cleaned scale to flow out with the circulating water and enter the subsequent treatment process.

[0073] In this embodiment, the base frame 12 is used to support the box body 1; the base frame 12 includes four support rods, which are fixed to the four bottom corners of the box body 1, and the height of the support rods is 1 / 2 of the height of the box body 1.

[0074] like Figure 3As shown, the lifting drive device 4 of the automatic descaling electrochemical water treatment equipment in this embodiment can also be configured as 4 electric cylinders. The electric cylinders are square and vertically fixed on the top cover 3. The end of the telescopic rod of the electric cylinder is fixed on the upper surface of the scraper 6. To facilitate the lifting and lowering of the top cover 3, a lifting lug 17 is provided on the top cover 3.

[0075] The working principle of the automatic descaling electrochemical water treatment equipment in this embodiment is as follows: the circulating water to be treated enters the tank from the circulating water inlet and is electrolyzed under the action of the electrolysis device, producing scale. The scale adheres to the cathode plate and flows out from the outlet pipe on the top cover. When the scale accumulates to a certain extent, the lifting drive device is activated, which drives the scraper to move down, scraping off the scale, which falls below the electrolysis chamber and flows into the post-treatment process with the circulating water from the scale outlet. When there is a problem with the cathode plate or anode plate, the top cover can be removed for maintenance, which is convenient and quick.

[0076] The automatic descaling electrochemical water treatment equipment of this embodiment can achieve automatic descaling without shutdown, resulting in high efficiency. The special design of the electrolysis device achieves strong electrolysis capacity. The integrated structure of the top cover, cathode plate, and anode plate facilitates cleaning and maintenance. The equipment of this invention...

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic descaling electrochemical water treatment device, characterized in that, It includes a housing, a top cover, a lifting drive device, a scraper, an electrolysis device, a protective box, a water outlet pipe, and a base frame; the housing is fixed to the base frame; the top cover is fixed above the housing, and the top cover and the housing form an electrolysis chamber; the electrolysis device includes an anode assembly and a cathode assembly, the cathode assembly includes the inner wall of the housing and 5 cathode plates, the anode assembly includes 6 anode plates, the cathode plates and the anode plates are fixed parallel and equidistantly below the top cover, the left side of the leftmost anode plate is the inner wall of the housing, and the right side of the rightmost anode plate is the inner wall of the housing; the portion of the cathode plate penetrating the top cover is provided with a cathode terminal, and the portion of the anode plate penetrating the top cover is provided with... The device includes an insulating seal and an anode terminal. A protective box covers the outside of the cathode and anode terminals, and the protective box has cable through holes. A lifting drive device is fixed above the top cover, and the telescopic rod of the lifting drive device is fixedly connected to the scraper. The scraper includes a fixed plate and a scraper blade. The fixed plate has several cathode through holes corresponding to the cathode plate, and the fixed plate has several anode through holes corresponding to the anode plate. The scraper blade is fixedly connected to the edge of the cathode through holes. A base frame is fixed below the housing. The bottom of the housing has a circulating water inlet and a scale outlet. The water outlet pipe passes through the top cover and is connected to the electrolysis chamber. The upper part of the box is a cuboid structure, and the lower part of the box is a cone structure. The lower part of the box is connected to the circulating water inlet and the scale outlet. The housing and the top cover are connected by a flange; Several lifting lugs are provided on the top of the top cover; The lifting drive device includes four electric cylinders, which are quadrilateral in shape and vertically fixed to the top cover. The ends of the telescopic rods of the electric cylinders are fixed to the upper surface of the scraper. The fixed plate is a metal plate, the scraper is a plastic scraper; the cathode plate is a 5-10mm thick carbon steel plate, and the width of the cathode through hole is 15-30mm. The base frame includes four support rods, which are fixed to the four bottom corners of the box. The height of the support rods is 1 / 2 of the height of the box. The support rods and the bottom of the box are provided with reinforcing ribs. The fixed plate is provided with positioning pulleys or balls at its four corners, and the positioning pulleys or balls are in contact with the four inner corners of the housing; the fixed plate is provided with reinforcing ribs inside.

2. The automatic descaling electrochemical water treatment equipment as described in claim 1, characterized in that, An observation window is provided on the front of the enclosure.

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