Electrochemical treatment device for desulfurization wastewater

Abstract

The utility model discloses an electrochemical treatment device for desulfurization wastewater, and belongs to the technical field of wastewater treatment. The device mainly comprises a shell; the processing assembly is arranged on the shell; the slag removal assembly is arranged on the shell, and the slag removal assembly is provided with a top frame suitable for installation; the cleaning assembly is arranged on the slag removal assembly and comprises a collecting box, and the collecting box is installed on the top frame; the limiting plates are mounted at the two ends of the collecting box; the water spraying pipes are arranged on the collecting box, and at least two groups of nozzles are arranged on the water spraying pipes; and the flow dividing pipe is arranged at one ends of the at least two groups of water spraying pipes. According to the electrochemical treatment device for the desulfurization wastewater, through the arrangement of the cleaning assembly, suspended solids can be cleaned in time after being scraped by the scraping plate, the suspended solids are prevented from remaining on the scraping plate, and the effect of cleaning the scraping net plate is achieved.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, specifically to an electrochemical treatment device for desulfurization wastewater. Background Technology

[0002] Desulfurization wastewater is a special type of wastewater generated when wet desulfurization processes are used in industrial sites such as coal-fired power plants. It has a complex composition and is difficult to treat. In the field of industrial wastewater treatment, traditional physicochemical treatment processes face technical bottlenecks due to the high salinity, high corrosivity, and coexistence of complex pollutants in desulfurization wastewater. In contrast, electrochemical treatment technology, with its environmentally friendly, mild reaction conditions, and directional controllability, is gradually becoming the mainstream solution to this problem.

[0003] For example, the patent with announcement number CN218025540U discloses an electrochemical treatment device for desulfurization wastewater. The device introduces desulfurization wastewater into an electrocoagulation tank from the wastewater inlet. Two motor blocks are energized to perform electrolytic flocculation, generating floating suspended solids and precipitated sludge in the wastewater. At this time, the hydraulic rod controls the scraper to be lowered, driving the scraper to scrape the sludge into the sediment collection tank for collection. Afterwards, it can be centrally cleaned by the sludge discharge pump. At the same time, the floating suspended solids are concentrated into the scum removal tank with the water flow. The reduction motor starts and drives the conveyor belt to rotate, driving several scum removal nets to pick up the floating solids. When passing the upper side of the scum collection tank, the floating solids are thrown into the scum collection tank under the action of gravity, thus completing the removal and recycling of the floating solids.

[0004] Although the aforementioned patent can collect scum, it does not include a component for cleaning the scraping screen. Scum may adhere to the scraping screen, and the uncleaned scum may return to the electrocoagulation tank with the water flow, leading to an increase in suspended solids concentration and increasing the processing burden. Furthermore, some corrosive substances in the scum, if attached to the scraping screen for a long time, can cause corrosion of metal components.

[0005] Therefore, it is necessary to provide an electrochemical treatment device for desulfurization wastewater to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an electrochemical treatment device for desulfurization wastewater, which can achieve the effect of cleaning the scraping screen.

[0008] The technical solution adopted by this application to solve its technical problem is: an electrochemical treatment device for desulfurization wastewater, including a shell; a treatment component disposed on the shell; a slag removal component disposed on the shell, the slag removal component having a top frame suitable for installation; a cleaning component disposed on the slag removal component, the cleaning component including: a collection box disposed on the top frame; two sets of limiting plates disposed at both ends of the collection box; at least two sets of water spray pipes disposed on the collection box, the water spray pipes being provided with at least two sets of nozzles; and a diversion pipe disposed at one end of the at least two sets of water spray pipes.

[0009] Furthermore, the processing component includes a water inlet pipe installed on the housing, and a water storage tank and a processing tank are provided inside the housing. A through hole is provided through the water storage tank, and a receiving box is installed on the inner wall of one end of the processing tank. The receiving box is located above the through hole, and the upper end face of the receiving box is inclined.

[0010] Furthermore, the treatment tank is equipped with at least two sets of electrode plates, which are connected to an external power source. The tank is also equipped with a drainage pool located on one side of the treatment tank, and a drainage pipe is installed in the drainage pool.

[0011] Furthermore, the slag removal assembly includes a motor mounted on the top frame, and two sets of rotating rods are mounted on the bearings of the top frame. One end of one set of rotating rods and the output end of the motor are connected to a belt drive assembly.

[0012] Furthermore, two sets of sprockets are fixedly mounted on the two sets of rotating rods, and chains are driven on both sets of sprockets. At least two scrapers are mounted on the two sets of chains. The scrapers are made of elastic metal, and the collection box passes between the inner rings of the two sets of chains.

[0013] Furthermore, a water pump is installed on the casing, with a pumping pipe at the output end and an outlet pipe at the input end. One end of the pumping pipe extends into the inside of the collection box, and the other end of the outlet pipe extends into the inside of the receiving box.

[0014] The beneficial effects of this application are: the electrochemical treatment device for desulfurization wastewater provided by this application, through the setting of the cleaning component, enables the scraper to clean the suspended solids in a timely manner after scraping them, avoiding the suspension solids remaining on the scraper, and achieving the effect of cleaning the scraping screen.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall schematic diagram of an electrochemical treatment device for desulfurization wastewater according to this application;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 for Figure 1 A cross-sectional view from another perspective;

[0022] The following are the labeling elements in the figure:

[0023] 1. Shell;

[0024] 2. Processing components; 21. Water inlet pipe; 22. Water storage tank; 23. Material receiving box; 231. Inclined end; 24. Electrode plate; 25. Processing tank; 26. Drainage tank; 27. Partition plate;

[0025] 3. Slag removal assembly; 31. Motor; 301. Top frame; 32. Belt drive assembly; 33. Rotating rod; 34. Chain; 35. Sprocket assembly; 36. Scraper;

[0026] 4. Cleaning components; 41. Collection box; 42. Diverter pipe; 43. Spray pipe; 44. Limiting plate; 45. Pumping pipe; 46. Water pump; 47. Outlet pipe. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] like Figures 1-3As shown, this application provides an electrochemical treatment device for desulfurization wastewater, including a housing 1, on which a treatment component 2 is disposed. The treatment component 2 is used for the electrochemical treatment of wastewater, specifically:

[0030] The treatment component 2 includes an inlet pipe 21 installed on the housing 1 for introducing wastewater. Inside the housing 1, there is a water storage tank 22 and a treatment tank 25. The water storage tank 22 is used to receive the introduced wastewater, and a partition 27 is installed between the water storage tank 22 and the treatment tank 25. A through hole (not shown in the figure) is provided through the partition 27. The through hole has a certain height so that the water in the water storage tank 22 can gradually flow into the treatment tank 25 after reaching a certain height.

[0031] Multiple sets of electrode plates 24 are installed inside the treatment tank 25. These electrode plates 24 are connected to an external power source to start the power supply and energize the multiple sets of electrode plates 24, thereby electrolyzing and flocculating the wastewater in the treatment tank 25. At this time, floating suspended solids and precipitated sludge are generated in the wastewater. The sludge settles at the bottom of the treatment tank 25, and a discharge port is provided at the bottom of the treatment tank 25 to facilitate the discharge of sludge.

[0032] A drainage pool 26 is provided inside the housing 1. The drainage pool 26 is located on one side of the treatment pool 25 so that after the water in the treatment pool 25 is filled with electrolyzed water, it can overflow into the drainage pool 26. A drain pipe (not shown in the figure) is provided in the drainage pool 26 so that the treated water can be discharged to the subsequent process through the drain pipe.

[0033] A slag removal component 3 is provided on the shell 1. The slag removal component 3 is used to scrape off suspended solids generated during wastewater electrolysis.

[0034] like Figure 1 and Figure 3 As shown, the slag removal assembly 3 includes a top frame 301 fixedly installed on the housing 1. A motor 31 is fixedly installed on the top frame 301, and two sets of rotating rods 33 are mounted on the top frame 301 with bearings. One end of one set of rotating rods 33 and the output end of the motor 31 are provided with a belt drive group 32 so that the rotating rods 33 can be driven to rotate by the belt drive group 32 under the drive of the motor 31.

[0035] Two sets of sprocket sets 35 are fixedly sleeved on the two sets of rotating rods 33. Both sets of sprocket sets 35 are equipped with chains 34 for transmission. Multiple sets of scrapers 36 are provided on the two sets of chains 34 so that the scrapers 36 can be driven to move cyclically along the forward direction of the chains 34 in cooperation with the sprocket sets 35 and chains 34.

[0036] It should be noted that the two sprockets form a sprocket group 35, and when the scraper 36 moves from above to below the chain 34 as the chain 34 rotates, the lower surface of the scraper 36 contacts the water surface after the treatment tank 25 is filled, thereby scraping off the suspended matter on the water surface.

[0037] A receiving box 23 is fixedly installed on the inner wall of one end of the treatment tank 25. The receiving box 23 is located above the through hole of the partition 27. The upper end of the receiving box 23 has an inclined end 231, which is slightly higher than the water surface after the treatment tank 25 is filled. The scraper 36 is made of elastic metal, and the inclined surface of the inclined end 231 of the receiving box 23 is narrow at the top and wide at the bottom.

[0038] So that after the scraper 36 scrapes the suspended matter to the inclined end 231, the lower end of the scraper 36 contacts its inclined surface and moves cyclically along the forward direction of the chain 34. The scraper 36 gradually moves from below the inclined surface to above it. At this time, the scraper 36 will be squeezed by its inclined surface, causing it to deform adaptively until the scraper 36 moves to the top of the inclined surface of the inclined end 231 and scrapes the suspended matter into the collection box 23. After the scraper 36 separates from the material, it can return to its original shape.

[0039] A cleaning component 4 is provided on the slag removal component 3, which is used to clean the slag removal component 3.

[0040] like Figures 1-2 and Figure 4 As shown, the cleaning component 4 includes a collection box 41 fixedly installed on the top frame 301. The collection box 41 passes through the gap between the inner rings of the two sets of chains 34. Multiple sets of water spray pipes 43 are provided on the collection box 41. Multiple sets of nozzles are provided on the water spray pipes 43. The water spray pipes 43 are located above the scraper 36. A diversion pipe 42 is provided at one end of the multiple sets of water spray pipes 43.

[0041] It should be noted that the end of the diversion pipe 42 away from the spray pipe 43 is connected to an external water tank through a drive device. The drive device can be a liquid pump. Under the drive of the drive device, water in the water tank is introduced into the spray pipe 43 and sprayed out through the nozzle, thereby spraying and rinsing the water passing through the nozzle scraper 36.

[0042] Limiting plates 44 are fixedly installed at both ends of the collection box 41. The limiting plates 44 are located between the inner rings of the chain 34 to block and collect the water after spraying.

[0043] A water pump 46 is fixedly installed on the housing 1. The input end of the water pump 46 is provided with a water suction pipe 45, one end of which extends into the interior of the collection box 41. The output end of the water pump 46 is provided with a water outlet pipe 47, one end of which extends into the interior of the receiving box 23. The receiving box 23 is provided with a discharge port (not shown in the figure) so that the water in the collection box 41 can be introduced into the receiving box 23 under the drive of the water pump 46, thereby rinsing the suspended matter in the receiving box 23 and discharging it through the discharge port.

[0044] In summary, during use, wastewater is introduced into the storage tank 22 through the inlet pipe 21 until it overflows and flows into the treatment tank 25. Multiple sets of electrode plates 24 are energized to electrolyze and flocculate the wastewater. At this time, floating suspended solids and settled sludge are generated in the wastewater. The sludge removal component 3 is activated to scrape off the suspended solids and collect them in the collection box 23. The cleaning component 4 is activated to clean the sludge removal component 3. At the same time, the wastewater after cleaning washes and discharges the suspended solids in the collection box 23.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electrochemical treatment device for desulfurization wastewater, characterized in that: include: Shell (1); Processing component (2) is disposed on the housing (1); A slag removal assembly (3) is disposed on the housing (1) and has a top frame (301) suitable for installation. A cleaning component (4) is disposed on the slag removal component (3), the cleaning component (4) comprising: A collection box (41) is mounted on the top frame (301); Two sets of limiting plates (44) are installed at both ends of the collection box (41); At least two sets of water spray pipes (43) are provided on the collection box (41), and at least two sets of nozzles are provided on the water spray pipes (43); Diverter pipe (42) is disposed at one end of at least two sets of spray pipes (43).

2. The electrochemical treatment device for desulfurization wastewater according to claim 1, characterized in that: The processing component (2) includes a water inlet pipe (21) disposed on the housing (1). The housing (1) is provided with a water storage tank (22) and a processing tank (25). A partition (27) is provided between the water storage tank (22) and the processing tank (25). A through hole is provided through the partition (27). A receiving box (23) is installed on the inner wall of one end of the processing tank (25). The receiving box (23) is located above the through hole. The upper end face of the receiving box (23) is inclined.

3. The electrochemical treatment device for desulfurization wastewater according to claim 2, characterized in that: The processing pool (25) is provided with at least two sets of electrode plates (24), which are connected to an external power source. The housing (1) is provided with a drainage pool (26), which is located on one side of the processing pool (25) and is provided with a drainage pipe.

4. The electrochemical treatment device for desulfurization wastewater according to claim 2, characterized in that: The slag removal assembly (3) includes a motor (31) installed on the top frame (301). Two sets of rotating rods (33) are mounted on the bearings of the top frame (301). One end of one set of rotating rods (33) and the output end of the motor (31) are provided with a belt drive assembly (32).

5. The electrochemical treatment device for desulfurization wastewater according to claim 4, characterized in that: Two sets of sprocket sets (35) are fixedly sleeved on the two sets of rotating rods (33). Chains (34) are driven on both sets of sprocket sets (35). At least two sets of scrapers (36) are provided on both sets of chains (34). The scrapers (36) are made of elastic metal. Part of the collection box (41) passes through the inner ring of the two sets of chains (34).

6. The electrochemical treatment device for desulfurization wastewater according to claim 5, characterized in that: A water pump (46) is installed on the housing (1). The output end of the water pump (46) is provided with a water suction pipe (45), and the input end of the water pump (46) is provided with a water outlet pipe (47). One end of the water suction pipe (45) extends into the interior of the collection box (41), and one end of the water outlet pipe (47) extends into the interior of the receiving box (23).

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