Electrocatalytic oxidation sewage treatment device

Abstract

The utility model relates to an electro-catalytic oxidation sewage treatment device, and relates to the technical field of sewage treatment, in order to solve the problem that floating objects affect electro-catalytic reaction, the electro-catalytic oxidation sewage treatment device comprises a flocculation basin, a sedimentation and filtration basin and an electro-catalytic box, the flocculation basin, the sedimentation and filtration basin and the electro-catalytic box are sequentially communicated, one side of the flocculation basin is communicated with a flocculation agent box, and the other side of the flocculation basin is communicated with a water tank. A stirring mechanism is arranged in the flocculation basin and comprises a stirring motor, a stirring rod and stirring blades, the stirring motor is arranged at the top of the flocculation basin, the stirring rod is vertically arranged in the flocculation basin, the output end of the stirring motor is connected to the stirring rod, and the stirring blades are sequentially arranged in the length direction of the stirring rod. A grating mechanism is arranged in the sedimentation and filtration tank, the grating mechanism comprises a grating frame body and a plurality of grating filter screens, the grating frame body is arranged in the sedimentation and filtration tank, and the plurality of grating filter screens are sequentially arranged in the grating frame body at intervals. The method has the effect of improving the electro-catalytic reaction efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to an electrocatalytic oxidation sewage treatment device. Background Art

[0002] As an efficient and environmentally friendly sewage treatment method, electrocatalytic oxidation technology has attracted more and more attention. This technology uses strong oxidants such as hydroxyl radicals (·OH) produced by electrocatalytic reactions to react with organic pollutants in sewage in a rapid chain reaction, thereby achieving rapid degradation of organic matter. This technology can not only significantly improve sewage treatment efficiency, but also effectively avoid secondary pollution, providing strong support for environmental protection.

[0003] In the related technology, when applying electrocatalytic oxidation sewage treatment equipment, floating materials such as grease and foam often contained in sewage become a technical challenge that cannot be ignored. These floating materials are adhesive and easily cover the surface of the electrode catalytic equipment to form a barrier layer, which not only hinders the electrocatalytic reaction and reduces the treatment efficiency, but also may cause scaling and passivation on the electrode surface, further affecting the performance and life of the equipment, so it needs to be improved. Utility Model Content

[0004] In order to solve the problem that floating matter in sewage affects the electrocatalytic reaction, the present application provides an electrocatalytic oxidation sewage treatment device.

[0005] The electrocatalytic oxidation sewage treatment device provided in this application adopts the following technical solution:

[0006] An electrocatalytic oxidation sewage treatment device comprises a flocculation tank, a sedimentation and filtration tank and an electrocatalytic box, wherein the flocculation tank, the sedimentation and filtration tank and the electrocatalytic box are connected in sequence, one side of the flocculation tank is connected to a flocculation agent box, a stirring mechanism is arranged in the flocculation tank, the stirring mechanism comprises a stirring motor, a stirring rod and stirring blades, the stirring motor is arranged at the top of the flocculation tank, the stirring rod is vertically arranged in the flocculation tank, the output end of the stirring motor is connected to the stirring rod, a plurality of the stirring blades are arranged in sequence along the length direction of the stirring rod, a grid mechanism is arranged in the sedimentation and filtration tank, the grid mechanism comprises a grid frame and a plurality of grid filters, the grid frame is arranged in the sedimentation and filtration tank, and a plurality of the grid filters are arranged in sequence and at intervals in the grid frame.

[0007] When applying electrocatalytic oxidation sewage treatment equipment, floating objects such as grease and foam often contained in sewage become a technical challenge that cannot be ignored. These floating objects are adhesive and easily cover the surface of the electrode catalytic equipment to form a barrier layer, which not only hinders the electrocatalytic reaction and reduces the treatment efficiency, but also may cause scaling and passivation on the electrode surface, further affecting the performance and life of the equipment. By adopting the above technical scheme, the flocculation tank, the sedimentation and filtration tank and the electrocatalytic box are connected in sequence, the stirring mechanism is installed in the flocculation tank, and the grid mechanism is installed in the sedimentation and filtration tank. When sewage is treated, the sewage to be treated is introduced into the flocculation tank, and at the same time, an appropriate amount of flocculant is added to the flocculation tank, the stirring mechanism starts to work, the stirring motor starts, and the stirring rod drives the stirring blades to rotate, so as to fully mix and stir the sewage and the flocculant in the tank, so that the flocculant can effectively play a role and form flocs in the suspended matter in the sewage. Subsequently, The sewage that has undergone preliminary treatment flows into the sedimentation and filtration tank, and the grid filter in the grid frame intercepts and removes large particles of impurities and floccules in the sewage. Finally, the sewage that has undergone sedimentation and filtration enters the electrocatalytic box, where the organic pollutants in the sewage are further degraded through electrocatalytic oxidation reactions to complete the sewage treatment. Through the setting of the flocculation agent box, the stirring mechanism and the grid mechanism, the addition of the flocculation agent and the mixing action of the stirring mechanism can rapidly form floccules from the suspended matter and floating objects such as grease and foam in the sewage, which are easier to be removed in the subsequent sedimentation and filtration process, greatly reducing the coverage of the electrode surface in the electrocatalytic box, improving the efficiency of the electrocatalytic reaction, reducing the possibility of scaling and passivation on the electrode surface, extending the service life of the electrocatalytic equipment, reducing the maintenance cost of the equipment, and at the same time improving the treatment effect of the entire sewage treatment device, making the effluent water quality more in line with environmental protection standards and reducing adverse effects on the environment.

[0008] Optionally, the grille frame is provided with a plurality of lifting ears for lifting, and the plurality of lifting ears are symmetrically arranged on the top of the grille frame, and the grille frame is provided with a plurality of grooves for installing the grille filter.

[0009] By adopting the above technical solution, a number of lifting ears are welded on the grille frame, and the grille filter is installed in the grille frame through the groove; through the setting of the lifting ears and the groove, the design of the lifting ears enables the grille frame to be conveniently lifted and carried, and at the same time the groove provides a stable installation position for the grille filter, which is convenient for removing the grille filter for cleaning, and is easy to disassemble and assemble, thereby improving the cleaning efficiency.

[0010] Optionally, the mesh sizes of the plurality of grid filters increase in sequence from the flocculation tank toward the electrocatalytic box.

[0011] By adopting the above technical solution, the mesh number of the grille filter increases successively; by setting the mesh number of the grille filter, the step-by-step filtration method can ensure that impurities in the sewage are effectively removed before entering the electrocatalytic box, reducing the damage of large particles to the electrocatalytic equipment, helping to further purify the sewage, reduce the content of harmful substances in the sewage, and create better conditions for subsequent electrocatalytic oxidation reactions.

[0012] Optionally, the sedimentation and filtration tank is provided with a cleaning door for personnel to enter and exit the tank body, and the cleaning door is arranged on the side wall of the sedimentation and filtration tank.

[0013] By adopting the above technical solution, the cleaning door is installed on the flocculation tank; through the setting of the cleaning door, the cleaning door provides a convenient passage in and out of the flocculation tank, allowing workers to easily enter the tank body to perform operations, which helps to keep the tank body clean.

[0014] Optionally, a bracket is provided on the top of the flocculation tank, the stirring motor is arranged on the bracket, a linear cylinder for controlling the stirring depth is provided on the flocculation tank, the linear cylinder is vertically arranged along the length direction of the stirring rod, and the linear cylinder is connected to the bracket.

[0015] By adopting the above technical solution, the stirring motor is installed on the bracket, and the linear cylinder is hingedly installed on the bracket; through the setting of the bracket and the linear cylinder, the bracket provides a solid support for the stirring motor to ensure its stability during operation and prevent damage caused by vibration or external force. The linear cylinder can accurately control the depth of the stirring motor and the stirring rod in the flocculation tank through its telescopic function, thereby adjusting the stirring effect, ensuring that floccules of different heights can be fully stirred, optimizing the stirring effect, and improving the flocculation efficiency.

[0016] Optionally, a conveying mechanism for conveying sewage is provided between the flocculation tank and the sedimentation and filtration tank and between the sedimentation and filtration tank and the electrocatalytic box, the conveying mechanism comprising a conveying pipe, a conveying pump and an output pipe, the water inlet end of the conveying pump is connected to the conveying pipe, the water outlet end of the conveying pump is connected to the output pipe, one of the conveying pipes is connected to the flocculation tank, and the corresponding output pipe is connected to the sedimentation and filtration tank, the other conveying pipe is connected to the sedimentation and filtration tank, and the corresponding output pipe is connected to the electrocatalytic box.

[0017] By adopting the above technical solution, the conveying mechanism includes a conveying pipe, a conveying pump and an output pipe; when the sewage needs to enter the next tank body for treatment, the conveying pump works, the sewage enters the conveying pump through the conveying pipe, and is then sent into another tank body through the output pipe; through the arrangement of the conveying pipe, the conveying pump and the output pipe, the continuous flow and treatment of the sewage are ensured, the system instability and efficiency reduction caused by sewage retention or interruption of treatment are reduced, and the stability and flexibility of the entire sewage treatment system are improved.

[0018] Optionally, each of the output pipes is provided with a flow meter for detecting the water flow rate.

[0019] By adopting the above technical solution, the flow meter is installed on the delivery pipe; through the setting of the flow meter, it is possible to monitor and record the water flow through the output pipe in real time, provide continuous and real-time data feedback, and timely adjust the working status of the delivery pump to control the flow rate, thereby ensuring the stability and efficiency of the sewage treatment process.

[0020] Optionally, the flocculation tank, the sedimentation and filtration tank and the electrocatalytic box are jointly provided with a platform, the platform is provided with a fence, the fence is arranged around the circumference of the platform, and a ladder is provided on one side of the platform.

[0021] By adopting the above technical solution, the flocculation tank, sedimentation filtration tank and electrocatalytic box are installed on the platform, and the fence and ladder are installed on the platform; through the setting of the platform, fence and ladder, multiple treatment tanks are installed on one platform, which is convenient for centralized management and monitoring. The operating status of each tank can be inspected on the platform, and problems can be discovered and solved in time. At the same time, the ladder and fence can provide workers with access to and from the platform, and can reduce the risk of accidental falls of workers, thereby ensuring their safety.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] Through the setting of the flocculation agent box, the stirring mechanism and the grid mechanism, the addition of the flocculation agent and the mixing effect of the stirring mechanism can make the suspended matter and floating matter such as grease, foam, etc. in the sewage quickly form flocs, which are easier to be removed in the subsequent sedimentation and filtration process, greatly reducing the coverage of the electrode surface in the electrocatalytic box, improving the efficiency of the electrocatalytic reaction, reducing the possibility of scaling and passivation on the electrode surface, extending the service life of the electrocatalytic equipment, reducing the maintenance cost of the equipment, and at the same time improving the treatment effect of the entire sewage treatment device, so that the effluent water quality is more in line with environmental protection standards, reducing adverse effects on the environment;

[0024] Through the setting of the bracket and the linear cylinder, the bracket provides a solid support for the stirring motor to ensure its stability during operation and prevent damage caused by vibration or external force. The linear cylinder can accurately control the depth of the stirring motor and the stirring rod in the flocculation tank through its telescopic function, thereby adjusting the stirring effect, ensuring that floccules at different heights can be fully stirred, optimizing the stirring effect and improving the flocculation efficiency.

[0025] Through the setting of platforms, fences and ladders, multiple treatment tanks are installed on one platform, which is convenient for centralized management and monitoring. The operating status of each tank can be inspected on the platform, and problems can be discovered and solved in time. At the same time, ladders and fences can provide workers with access to and from the platform, and can reduce the risk of accidental falls of workers, thereby ensuring their safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an electrocatalytic oxidation sewage treatment device in an embodiment of the present application.

[0027] Figure 2 This is a front view of an electrocatalytic oxidation sewage treatment device in an embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view of an electrocatalytic oxidation sewage treatment device in an embodiment of the present application.

[0029] Figure 4 It is a rear view of an electrocatalytic oxidation sewage treatment device in an embodiment of the present application.

[0030] Explanation of the reference numerals: 1. flocculation tank; 2. sedimentation and filtration tank; 3. electrocatalytic box; 4. flocculation agent box; 5. stirring mechanism; 51. stirring motor; 52. stirring rod; 53. stirring blade; 6. grille mechanism; 61. grille frame; 611. groove; 612. lifting ear; 62. grille filter; 7. cleaning door; 8. bracket; 81. linear cylinder; 9. conveying mechanism; 91. conveying pipe; 92. conveying pump; 93. output pipe; 10. flow meter; 11. platform; 12. fence; 13. ladder. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application discloses an electrocatalytic oxidation sewage treatment device. Figure 1The electrocatalytic oxidation sewage treatment device includes a flocculation tank 1, a sedimentation filter tank 2 and an electrocatalytic box 3. The flocculation tank 1, the sedimentation filter tank 2 and the electrocatalytic box 3 are connected in sequence. A conveying mechanism 9 for conveying sewage is installed between the flocculation tank 1 and the sedimentation filter tank 2 and between the sedimentation filter tank 2 and the electrocatalytic box 3. In this embodiment, the electrocatalytic box 3 is mainly composed of some existing devices such as a power control cabinet, a pre-catalytic reactor, a catalytic oxidation reactor and a dosing device.

[0033] Reference Figure 1 The flocculation tank 1, the sedimentation and filtration tank 2 and the electrocatalytic box 3 are jointly installed with a platform 11, and a fence 12 is welded and fixed on the upper surface of the platform 11. The fence 12 is installed around the circumference of the platform 11, and a ladder 13 is installed on one side of the platform 11. The ladder 13 is installed inclined toward the platform 11. Multiple treatment tanks are centrally installed on one platform 11, which is convenient for centralized management and monitoring. The operating status of each tank can be inspected on the platform 11, and problems can be discovered and solved in time. At the same time, the ladder 13 and the fence 12 can provide a passage for the staff to go up and down the platform 11, and can reduce the risk of accidental falls of the staff, thereby ensuring the safety of the staff.

[0034] Reference Figure 1 The conveying mechanism 9 includes a conveying pipe 91, a conveying pump 92 and an output pipe 93. In this embodiment, the conveying mechanism 9 is a plurality of groups, and the plurality of conveying mechanisms 9 are responsible for the transmission of sewage in the tank body. The conveying mechanism 9 includes a conveying pipe 91, a conveying pump 92 and an output pipe 93. The conveying pump 92 is installed at the bottom of the platform 11. The water inlet end of the conveying pump 92 is connected to the conveying pipe 91, and the water outlet end of the conveying pump 92 is connected to the output pipe 93. In this embodiment, one of the conveying pipes 91 is connected to the flocculation tank 1, and the corresponding output pipe 93 is connected to the sedimentation and filtration tank 2. Another conveying pipe 91 is connected to the sedimentation and filtration tank 2, and the corresponding output pipe 93 is connected to the electrocatalytic box 3, which ensures the continuous flow and treatment of sewage, reduces the system instability and efficiency reduction caused by sewage retention or interruption of treatment, and improves the stability and flexibility of the entire sewage treatment system.

[0035] Reference Figure 1 and Figure 2 A flow meter 10 is installed on each output pipe 93. The flow meter 10 is used to monitor and record the water flow through the output pipe 93 in real time, provide continuous and real-time data feedback, and can timely adjust the working state of the delivery pump 92 to control the flow rate and ensure the stability and efficiency of the sewage treatment process.

[0036] Reference Figure 1The flocculation tank 1 is equipped with a pipeline for the sewage to be treated. A flocculation agent box 4 is installed on one side of the flocculation tank 1. The flocculation agent box 4 is placed on the platform 11. The flocculation agent box 4 is connected to the flocculation tank 1 through a pipeline. The flocculation agent used in this embodiment needs to be fully tested and evaluated to ensure that the selected flocculation agent will not have an adverse effect on the subsequent electrocatalytic oxidation process.

[0037] Reference Figure 2 and Figure 3 A stirring mechanism 5 is installed on the top of the flocculation tank 1. The stirring mechanism 5 includes a stirring motor 51, a stirring rod 52 and a stirring blade 53. The stirring rod 52 is vertically installed in the flocculation tank 1. A plurality of stirring blades 53 are installed in sequence along the length direction of the stirring rod 52. The stirring rod 52 is installed on the output end of the stirring motor 51. The stirring mechanism 5 can make the suspended matter and floating matters such as grease and foam in the sewage fully react with the flocculation agent to quickly form flocs.

[0038] Reference Figure 2 and Figure 3 The stirring motor 51 is located at the top of the flocculation tank 1. A bracket 8 is installed on the top of the flocculation tank 1. The stirring motor 51 is installed on the bracket 8. Linear cylinders 81 are installed on both sides of the flocculation tank 1 respectively. The two linear cylinders 81 are symmetrically installed on both sides of the bracket 8. The linear cylinders 81 are vertically installed toward the stirring rod 52, and the output end of the linear cylinder 81 is hingedly installed on the bracket 8; the bracket 8 provides a stable support for the stirring motor 51 to ensure its stability during operation and prevent damage caused by vibration or external force. The linear cylinder 81 can accurately control the depth of the stirring motor 51 and the stirring rod 52 in the flocculation tank 1 through its telescopic function, thereby adjusting the stirring effect to ensure that floccules of different heights can be fully stirred, optimize the stirring effect, and improve the flocculation efficiency.

[0039] Reference Figure 3 A grid mechanism 6 is installed in the sedimentation and filtration tank 2. The grid mechanism 6 includes a grid frame 61 and a plurality of grid filters 62. The grid frame 61 is placed in the sedimentation and filtration tank 2. A plurality of lifting ears 612 are welded and fixed on the top of the grid frame 61. The plurality of lifting ears 612 are symmetrically installed on the grid frame 61. The design of the lifting ears 612 enables the grid frame 61 to be conveniently hoisted and carried.

[0040] Reference Figure 3, a plurality of grille filters 62 are installed in the grille frame 61 at intervals in sequence, and a groove 611 for installing the grille filter 62 is opened in the grille frame 61. In this embodiment, the mesh size of the plurality of grille filters 62 increases in sequence from the flocculation tank 1 toward the electrocatalytic box 3. The step-by-step filtration method can ensure that impurities in the sewage are effectively removed before entering the electrocatalytic box 3, reducing the damage of large particles to the electrocatalytic equipment, helping to further purify the sewage, reduce the content of harmful substances in the sewage, and create better conditions for subsequent electrocatalytic oxidation reactions.

[0041] Reference Figure 4 A notch communicating with the interior is provided on the sedimentation and filtration tank 2, and a cleaning door 7 is installed at the notch of the sedimentation and filtration tank 2. The cleaning door 7 provides a convenient passage for entering and exiting the flocculation tank 1, so that the staff can easily enter the tank body to perform operations, which helps to keep the tank body clean.

[0042] The implementation principle of an electrocatalytic oxidation sewage treatment device in the embodiment of the present application is as follows: when sewage is treated, the sewage to be treated is introduced into the flocculation tank 1, and at the same time, an appropriate amount of flocculating agent is added to the flocculation tank 1, the stirring mechanism 5 starts to work, the stirring motor 51 starts, and the stirring rod 52 drives the stirring blade 53 to rotate, so that the sewage and the flocculating agent in the tank are fully mixed and stirred, so that the flocculating agent can effectively play a role, so that the suspended matter in the sewage forms flocs, and then the sewage after preliminary treatment flows into the sedimentation and filtration tank 2, and the grid filter 62 in the grid frame 61 intercepts and removes large particles of impurities and flocs in the sewage. Finally, the sewage after sedimentation and filtration enters the electrocatalytic box 3, and the organic pollutants in the sewage are further degraded through the electrocatalytic oxidation reaction in the electrocatalytic box 3 to complete the sewage treatment; through the flocculation agent box 4. The setting of the stirring mechanism 5 and the grid mechanism 6, the addition of the flocculating agent and the mixing effect of the stirring mechanism 5 can make the suspended matter and floating matter such as grease, foam, etc. in the sewage quickly form flocs, which are easier to be removed in the subsequent sedimentation and filtration process, greatly reducing the coverage of the electrode surface in the electrocatalytic box 3, improving the efficiency of the electrocatalytic reaction, reducing the possibility of scaling and passivation on the electrode surface, extending the service life of the electrocatalytic equipment, reducing the maintenance cost of the equipment, and at the same time improving the treatment effect of the entire sewage treatment device, so that the effluent water quality is more in line with environmental protection standards, and reducing adverse effects on the environment. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electrocatalytic oxidation sewage treatment device, characterized in that: The invention comprises a flocculation tank (1), a sedimentation and filtration tank (2) and an electrocatalytic box (3), wherein the flocculation tank (1), the sedimentation and filtration tank (2) and the electrocatalytic box (3) are sequentially connected, one side of the flocculation tank (1) is connected to a flocculation agent box (4), a stirring mechanism (5) is arranged in the flocculation tank (1), and the stirring mechanism (5) comprises a stirring motor (51), a stirring rod (52) and a stirring blade (53), the stirring motor (51) is arranged at the top of the flocculation tank (1), and the stirring rod (52) is vertically connected to the flocculation tank (1). Arranged in a flocculation tank (1), the output end of the stirring motor (51) is connected to a stirring rod (52), a plurality of stirring blades (53) are arranged in sequence along the length direction of the stirring rod (52), a grid mechanism (6) is arranged in the sedimentation and filtration tank (2), the grid mechanism (6) comprises a grid frame (61) and a plurality of grid filters (62), the grid frame (61) is arranged in the sedimentation and filtration tank (2), and a plurality of grid filters (62) are arranged in sequence in the grid frame (61) at intervals.

2. The electrocatalytic oxidation sewage treatment device according to claim 1, characterized in that: The grille frame (61) is provided with a plurality of lifting ears (612) for lifting, and the plurality of lifting ears (612) are symmetrically arranged on the top of the grille frame (61). The grille frame (61) is provided with a plurality of grooves (611) for installing the grille filter (62).

3. The electrocatalytic oxidation sewage treatment device according to claim 2 is characterized in that: The mesh sizes of the plurality of grid filters (62) increase in sequence from the flocculation tank (1) toward the electrocatalytic box (3).

4. The electrocatalytic oxidation sewage treatment device according to claim 2, characterized in that: The sedimentation and filtration tank (2) is provided with a cleaning door (7) for personnel to enter and exit the tank body, and the cleaning door (7) is arranged on the side wall of the sedimentation and filtration tank (2).

5. The electrocatalytic oxidation sewage treatment device according to claim 1, characterized in that: A bracket (8) is provided on the top of the flocculation tank (1), the stirring motor (51) is arranged on the bracket (8), and a linear cylinder (81) for controlling the stirring depth is provided on the flocculation tank (1), the linear cylinder (81) is arranged vertically along the length direction of the stirring rod (52), and the linear cylinder (81) is connected to the bracket (8).

6. The electrocatalytic oxidation sewage treatment device according to claim 1, characterized in that: A conveying mechanism (9) for conveying sewage is provided between the flocculation tank (1) and the sedimentation and filtration tank (2) and between the sedimentation and filtration tank (2) and the electrocatalytic box (3). The conveying mechanism (9) comprises a conveying pipe (91), a conveying pump (92) and an output pipe (93). The conveying mechanism (9) comprises a conveying pipe (91), a conveying pump (92) and an output pipe (93). The water inlet end of the conveying pump (92) is connected to the conveying pipe (91), and the water outlet end of the conveying pump (92) is connected to the output pipe (93). One of the conveying pipes (91) is connected to the flocculation tank (1), and the corresponding output pipe (93) is connected to the sedimentation and filtration tank (2). The other of the conveying pipes (91) is connected to the sedimentation and filtration tank (2), and the corresponding output pipe (93) is connected to the electrocatalytic box (3).

7. The electrocatalytic oxidation sewage treatment device according to claim 6, characterized in that: Each of the output pipes (93) is provided with a flow meter (10) for detecting the flow rate of water.

8. The electrocatalytic oxidation sewage treatment device according to claim 1, characterized in that: The flocculation tank (1), the sedimentation and filtration tank (2) and the electrocatalytic box (3) are jointly provided with a platform (11), a fence (12) is provided on the platform (11), the fence (12) is arranged around the circumference of the platform (11), and a ladder (13) is provided on one side of the platform (11).

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