Electrocatalytic oxidation wastewater treatment device

Abstract

The utility model discloses an electrocatalytic oxidation wastewater treatment device which comprises a box body, a mixing pipe, a mixing box, an electrolysis mechanism and a filtering assembly, partition plates are arranged in the box body at left and right intervals, and the interior of the box body is sequentially divided into a mixing cavity, an electrolysis cavity and a filtering cavity from left to right through the partition plates; a water inlet pipe is arranged on the left side of the box body, a feeding pipe is arranged on the upper surface of the box body opposite to the mixing cavity, and a mixing box is arranged on the inner bottom surface of the box body opposite to the mixing cavity; a mixing pipe is vertically arranged in the mixing cavity in a winding shape, the upper end of the mixing pipe is communicated with the lower end of the feeding pipe, the lower end of the mixing pipe is communicated with the mixing box, and the water inlet pipe is communicated with the mixing pipe; an electrolysis mechanism is arranged in the electrolysis cavity, and the mixed wastewater is conveyed to the electrolysis cavity for oxidation treatment through a water conveying assembly I; a filtering assembly is arranged in the filtering cavity, and oxidized wastewater is conveyed to the filtering cavity for filtering treatment through a water conveying assembly II. According to the utility model, the oxidation effect of wastewater after electro-catalysis is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an electrocatalytic oxidation wastewater treatment device. Background Technology

[0002] Electrocatalytic oxidation technology uses electricity as a catalyst and hydrogen peroxide, oxygen, ozone, etc. as oxidants for oxidation reactions. It has stable catalytic efficiency and oxidant utilization rate of over 95%, so electrocatalytic oxidation devices have been widely used in the field of wastewater treatment.

[0003] However, existing electrocatalytic oxidation wastewater treatment devices often suffer from incomplete mixing of wastewater and hydrogen peroxide before electrocatalytic oxidation, leading to a significant decrease in the oxidation effect after electrocatalysis. Furthermore, electrode maintenance and treatment are inconvenient. Therefore, these problems urgently need to be addressed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electrocatalytic oxidation wastewater treatment device. By setting up a meandering mixing pipe, wastewater and hydrogen peroxide can be effectively mixed in the mixing tank, thereby improving the wastewater oxidation effect after electrocatalysis.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: The innovative feature of this utility model is that it includes a tank, partitions, an inlet pipe, a feed pipe, a mixing pipe, a mixing tank, a water conveying assembly I, an electrolysis mechanism, a water conveying assembly II, and a filtration assembly; partitions are vertically spaced at intervals on the left and right sides of the horizontally arranged tank, dividing the interior of the tank from left to right into a non-communicating mixing chamber, an electrolysis chamber, and a filtration chamber; an inlet pipe is connected to the upper left side of the tank, and a feed pipe is also connected to its upper surface relative to the mixing chamber. A mixing chamber is also provided on its inner bottom surface relative to the mixing cavity; a mixing pipe is also provided vertically in a meandering shape above the mixing chamber in the mixing cavity. The upper end of the mixing pipe is sealed and connected to the lower end of the feed pipe, and its lower end is connected to the mixing chamber. The water inlet pipe is sealed and connected to the mixing pipe near its upper end, so that wastewater and hydrogen peroxide are mixed in the mixing chamber through the mixing pipe; an electrolysis mechanism is provided in the electrolysis cavity, and the mixed wastewater is sent to the electrolysis cavity for oxidation treatment through water supply component I; a filtration component is provided in the filtration cavity, and the oxidized wastewater is sent to the filtration cavity for filtration treatment through water supply component II.

[0006] The electrolysis mechanism includes a gantry frame, a lifting assembly, a lifting plate, a positive electrode plate, a negative electrode plate, and a fixing assembly. A gantry frame is also provided on the upper surface of the housing relative to the electrolysis chamber. The opening slot of the gantry frame is arranged horizontally longitudinally, and its two opening ends are respectively fixedly connected to corresponding positions on the upper surface of the housing, and are spaced apart on the right side of the feed pipe. Inside the gantry frame, a matching lifting plate is horizontally arranged relative to the top of the housing, and the lifting plate is positioned within the gantry frame relative to the top of the housing via the lifting assembly. The field moves vertically up and down; on the lower surface of the lifting plate, positive and negative plates are vertically symmetrically arranged at intervals on the left and right, and the vertical length of the positive and negative plates must be greater than half the depth of the electrolysis chamber, and their upper ends are fixedly connected to the lower surface of the lifting plate by fixing components; on the upper surface of the box, corresponding to the positions of the positive and negative plates, through holes are vertically embedded and opened, matching the positive plates, and under the drive of the electric push rod, the positive and negative plates move vertically downward with the lifting plate and are inserted into the electrolysis chamber through the through holes.

[0007] Preferably, it also includes solenoid valve I and solenoid valve II; the water inlet pipe is inclinedly arranged at the upper left side of the tank, and its lower end extends downward into the mixing chamber and is sealed and connected to the mixing pipe near its upper end, thereby sending wastewater into the mixing pipe through the water inlet pipe; solenoid valve I is also connected to the upper end of the water inlet pipe, and the opening and closing of the water inlet pipe is controlled by solenoid valve I; the lower end of the feed pipe extends vertically downward into the mixing chamber and is sealed and connected to the upper end of the mixing pipe, and solenoid valve II is also connected to the upper end of the feed pipe, thereby sending hydrogen peroxide into the mixing pipe through the feed pipe, and the opening and closing of the feed pipe is controlled by solenoid valve II.

[0008] Preferably, the water conveying assembly I includes a pump I, a pipe I, and stiffening plates I; a pump I is also provided on the inner bottom surface of the tank relative to the right side of the mixing tank and located in the mixing chamber. The inlet of the pump I is sealed and connected to the mixing tank, and its outlet is sealed and connected to the lower end of the vertically arranged pipe I; the pipe I is vertically arranged in the mixing chamber near the corresponding partition, and its upper end extends vertically upward along the corresponding partition to the top surface of the tank, and then horizontally and vertically penetrates the corresponding partition, thereby pumping the mixed wastewater into the electrolysis chamber through the pump I; the pipe I does not interfere with the operation of the electrolysis mechanism, and several stiffening plates I are arranged sequentially along its length between the left side of the pipe I and the corresponding partition, thereby fixing and reinforcing the pipe I.

[0009] Preferably, the lifting assembly includes an electric push rod, a slide rail, a slider, and a limiting plate II. An electric push rod is vertically positioned at the center of the upper surface of the portal frame, with its pushing end extending vertically downwards into the interior of the portal frame and screwed to the corresponding position on the upper surface of the lifting plate, thus driving the lifting plate to move vertically up and down. Slide rails are vertically positioned at intervals on the left and right inner sides of the portal frame relative to the lifting plate, and sliders matching the slide rails are provided on the left and right end faces of the lifting plate relative to each slide rail position. The cooperation between the slide rails and sliders ensures the stability of the vertical movement of the lifting plate. Limiting plates II are provided at the upper and lower ends of each slide rail, and each limiting plate II is fixedly connected to the corresponding position on the left and right inner sides of the portal frame, thereby limiting the vertical movement of the lifting plate.

[0010] Preferably, the upper limit position of the lifting plate should ensure that the lower ends of both the positive and negative plates are directly above the casing, and its lower limit position should ensure that the lower half of both the positive and negative plates are below the liquid surface in the electrolysis chamber, thereby ensuring the oxidation effect.

[0011] Preferably, each of the fixing components includes a limiting protrusion, a fixing plate, and a countersunk bolt; a limiting protrusion is also provided at the upper end of the positive and negative electrode plates, and each limiting protrusion is integrally formed with the corresponding positive and negative electrode plates to form a T-shape; a T-shaped groove is vertically embedded in the middle position of each horizontally arranged fixing plate, the small diameter end of each T-shaped groove matches the upper end of the corresponding positive or negative electrode plate, and extends vertically downward from the middle position of the lower surface of the corresponding fixing plate; the large diameter end of each T-shaped groove matches each limiting protrusion. The positive and negative plates extend vertically upwards to the middle position of the upper surface of the corresponding fixed plate, and it is necessary to ensure that when the positive or negative plate is engaged with the corresponding fixed plate through the cooperation of the limiting protrusion and the limiting groove, the upper surface of each limiting protrusion is in the same horizontal plane as the upper surface of the corresponding fixed plate; the lower ends of the positive and negative plates extend downwards through the corresponding T-grooves to the corresponding fixed plates, and then the two fixed plates are screwed and fixed to the corresponding positions of the lower surface of the lifting plate by countersunk bolts, thereby installing the positive and negative plates on the left and right sides of the lower surface of the lifting plate respectively.

[0012] Preferably, the water conveying component II includes a pump II, a pipe II, a reinforcing plate II, a diversion cavity, and diversion holes; a matching diversion cavity is also horizontally arranged in the filter chamber relative to the top of the filter component, the diversion cavity being a hollow cavity, and several diversion holes are evenly spaced and matrix-distributed on its lower surface; a pump II is also arranged on the right side of the partition plate relative to the top of the diversion cavity, and the outlet of the pump II is sealed and connected to the diversion cavity; the pipe II is vertically arranged in the electrolysis chamber at the position of the right partition plate, and is perpendicular to the vertical of the negative electrode plate. The vertical movement does not cause interference; the lower end of the pipe II extends vertically downward to the inner bottom surface of the box, and its upper end extends vertically upward along the corresponding partition to the inner top surface of the box, then horizontally and vertically penetrates the partition on the right side and connects with the inlet of the pump II, thereby pumping the oxidized wastewater into the diversion chamber through the pump II, and then evenly falling onto the filter assembly for filtration through the diversion hole; several stiffening plates II are also arranged sequentially along the length direction between the left side of the pipe II and the corresponding partition, and the pipe II is fixed and reinforced by the stiffening plates II.

[0013] Preferably, the filter assembly includes a filter plate, a pull plate, a limiting plate I, a pin, and a handle; a matching filter plate is horizontally arranged in the middle of the interior of the housing relative to the filter chamber, and the filter plate is horizontally slidably connected to the housing; the left side of the filter plate abuts against the corresponding right side of the partition plate on the right side, and a matching pull plate is horizontally fixed on its right side, the right side of the pull plate extends horizontally and vertically out of the right side of the housing, and limiting plates I are horizontally symmetrically arranged on the upper and lower sides of the pull plate extending beyond the housing, each limiting plate I is fixedly connected to the right side of the housing, and a pin is vertically arranged in the middle of the upper surface of the upper limiting plate I, the lower end of the pin vertically downwards through the upper limiting plate I, the pull plate, and the lower limiting plate I, and horizontally limiting the filter plate; a handle is vertically arranged on the right side of the pull plate, and the handle is not interfered with by the two limiting plates I, so that the filter plate can be pulled out by the handle.

[0014] Preferably, it also includes a guide plate, a drain pipe, and a solenoid valve III; a drain pipe is horizontally arranged on the right side of the housing near its bottom, and the left end of the drain pipe extends horizontally and vertically into the interior of the housing. A solenoid valve III is connected to the right end of the drain pipe, and the solenoid valve III controls the opening and closing of the drain pipe; a guide plate is horizontally inclined and matched to the filter plate in the filter chamber, and the upper end of the guide plate is abutted and fixed to the right side of the partition plate on the right side, without interfering with the horizontal sliding of the filter plate; the lower end of the guide plate is abutted and contacted with the lower edge of the left end of the drain pipe, and the filtered wastewater is collected into the drain pipe and then discharged through the drain pipe.

[0015] The beneficial effects of this utility model are:

[0016] (1) By setting up a meandering mixing pipe, the present invention can effectively mix wastewater and hydrogen peroxide in the mixing tank, thereby improving the wastewater oxidation effect after electrocatalysis;

[0017] (2) This utility model facilitates the quick installation and disassembly of the positive and negative plates by using the lifting assembly, fixing plate, limiting protrusion and countersunk bolt together, thereby facilitating electrode maintenance.

[0018] (3) This utility model facilitates the quick installation and disassembly of the filter plate by using the pull plate, limit plate I, pin shaft and handle together, thereby facilitating the maintenance and replacement of the filter plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the structure of an electrocatalytic oxidation wastewater treatment device according to the present invention.

[0020] Figure 2 This is a schematic diagram showing the usage state of this utility model.

[0021] The components are as follows: 1-box body; 2-partition plate; 3-mixing chamber; 4-electrolysis chamber; 5-filtration chamber; 6-water inlet pipe; 7-solenoid valve I; 8-feed pipe; 9-solenoid valve II; 10-mixing pipe; 11-mixing box; 12-pump I; 13-pipe I; 14-positive electrode plate; 15-negative electrode plate; 16-gantry frame; 17-electric push rod; 18-lifting plate; 19-slide rail; 20-limiting protrusion; 21-fixing plate; 22-pipe II; 23-pump II; 24-diversion chamber; 25-diversion hole; 26-filter plate; 27-pull plate; 28-limiting plate I; 29-pin shaft; 30-handle; 31-guide plate; 32-drain pipe; 33-solenoid valve III. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0023] This utility model discloses an electrocatalytic oxidation wastewater treatment device, comprising a housing 1, a partition 2, an inlet pipe 6, a feed pipe 8, a mixing pipe 10, a mixing tank 11, a water conveying assembly I, an electrolysis mechanism, a water conveying assembly II, and a filtration assembly; the specific structure is as follows. Figure 1 , Figure 2As shown, the interior of the horizontally arranged box 1 is vertically spaced with partitions 2, which divide the interior of the box 1 from left to right into a non-interconnected mixing chamber 3, an electrolysis chamber 4, and a filtration chamber 5. A water inlet pipe 6 is connected to the upper left side of the box 1, and a feed pipe 8 is connected to its upper surface relative to the mixing chamber 3. A mixing box 11 is also provided on its inner bottom surface relative to the mixing chamber 3. A mixing pipe 10 is vertically arranged in a meandering shape inside the mixing chamber 3, directly above the mixing box 11. The upper end of the mixing pipe 10 is sealed to the lower end of the feed pipe 8, and its lower end is connected to the mixing box 11. The water inlet pipe 6 and the mixing pipe 10 are sealed to each other near their upper ends, so that wastewater and hydrogen peroxide are mixed in the mixing box 11 through the mixing pipe 10.

[0024] like Figure 1 , Figure 2 As shown, the inlet pipe 6 is inclinedly positioned on the upper left side of the housing 1, with its lower end extending downwards into the mixing chamber 3 and sealingly connected to the mixing pipe 10 near its upper end, thereby sending wastewater through the inlet pipe 6 into the mixing pipe 10; a solenoid valve I7 is also connected to the upper end of the inlet pipe 6, and the opening and closing of the inlet pipe 6 is controlled by the solenoid valve I7; the lower end of the feed pipe 8 extends vertically downwards into the mixing chamber 3 and is sealingly connected to the upper end of the mixing pipe 10, and a solenoid valve II9 is ​​also connected to the upper end of the feed pipe 8, thereby sending hydrogen peroxide through the feed pipe 8 into the mixing pipe 10, and the opening and closing of the feed pipe 8 is controlled by the solenoid valve II9.

[0025] This invention includes an electrolysis mechanism within the electrolysis chamber 4, and a water conveying assembly I to deliver the mixed wastewater to the electrolysis chamber 4 for oxidation treatment; wherein, the water conveying assembly I includes a pump I12, a pipe I13, and a reinforcing plate I; as Figure 1 , Figure 2 As shown, a pump I 12 is also provided on the inner bottom surface of the box 1 relative to the right side of the mixing box 11 and located in the mixing chamber 3. The inlet of the pump I 12 is sealed and connected to the mixing box 11, and its outlet is sealed and connected to the lower end of the vertically arranged pipe I 13. The pipe I 13 is vertically arranged in the mixing chamber 3 near the corresponding partition 2, and its upper end extends vertically upward along the corresponding partition 2 to the inner top surface of the box 1, and then horizontally and vertically penetrates the corresponding partition 2, thereby pumping the mixed wastewater into the electrolysis chamber 4 through the pump I 12. The pipe I 13 does not interfere with the operation of the electrolysis mechanism, and several stiffening plates I are arranged sequentially along its length between the left side of the pipe I 13 and the corresponding partition 2, thereby fixing and reinforcing the pipe I 13 through the stiffening plates I.

[0026] The electrolysis mechanism of this utility model includes a gantry frame 16, a lifting assembly, a lifting plate 18, a positive electrode plate 14, a negative electrode plate 15, and a fixing assembly; such as Figure 1 , Figure 2As shown, a portal frame 16 is provided on the upper surface of the housing 1 relative to the electrolysis chamber 4. The opening slot of the portal frame 16 is arranged horizontally and longitudinally, and its two opening ends are fixedly connected to the corresponding positions on the upper surface of the housing 1, and are spaced apart on the right side of the feed pipe 8. Inside the portal frame 16, a matching lifting plate 18 is horizontally provided above the housing 1, and the lifting plate 18 moves vertically up and down inside the portal frame 16 relative to the area above the housing 1 via a lifting assembly. On the lower surface of the lifting plate 18, there are also spaced left and right. A positive electrode plate 14 and a negative electrode plate 15 are arranged vertically and symmetrically. The vertical length of the positive electrode plate 14 and the negative electrode plate 15 must be greater than half the depth of the electrolysis chamber 4. Their upper ends are fixedly connected to the lower surface of the lifting plate 18 through fixing components. On the upper surface of the housing 1, a through hole matching the positive electrode plate 14 is vertically embedded and opened at the position of the positive electrode plate 14 and the negative electrode plate 15. Under the drive of the electric push rod 17, the positive electrode plate 14 and the negative electrode plate 15 move vertically downward with the lifting plate 18 and are inserted into the electrolysis chamber 4 through the through hole.

[0027] The lifting assembly includes an electric push rod 17, a slide rail 19, a slider, and a limit plate II; such as Figure 1 , Figure 2 As shown, an electric push rod 17 is vertically installed in the middle of the upper surface of the portal frame 16. The pushing end of the electric push rod 17 extends vertically downward into the interior of the portal frame 16 and is screwed and fixed to the corresponding position of the upper surface of the lifting plate 18, thereby driving the lifting plate 18 to move vertically up and down. Slide rails 19 are vertically installed at intervals on the left and right inner sides of the portal frame 16 relative to the position of the lifting plate 18. Slider blocks matching the slide rails 19 are also installed on the left and right end faces of the lifting plate 18 relative to the position of each slide rail 19. The stability of the vertical up and down movement of the lifting plate 18 is ensured by the cooperation of the slide rails 19 and the sliders. Limiting plates II are installed at the upper and lower ends of each slide rail 19. Each limiting plate II is fixedly connected to the corresponding position of the left and right inner sides of the portal frame 16 and limits the vertical movement of the lifting plate 18 by the limiting plates II. The upper limit position of the lifting plate 18 must ensure that the lower ends of the positive electrode plate 14 and the negative electrode plate 15 are directly above the box 1, and its lower limit position must ensure that the lower half of the positive electrode plate 14 and the negative electrode plate 15 are below the liquid surface in the electrolysis chamber 4, thereby ensuring the oxidation effect.

[0028] Each fixing component includes a limiting protrusion 20, a fixing plate 21, and a countersunk bolt; such as Figure 1 , Figure 2As shown, limiting protrusions 20 are respectively provided at the upper ends of the positive electrode plate 14 and the negative electrode plate 15, and each limiting protrusion 20 is integrally formed with the corresponding positive electrode plate 14 and the corresponding negative electrode plate 15 to form a T-shape; a T-shaped groove is also vertically embedded in the middle position of each horizontally arranged fixing plate 21, the small diameter end of each T-shaped groove matches the upper end of the corresponding positive electrode plate 14 or negative electrode plate 15, and extends vertically downward from the middle position of the lower surface of the corresponding fixing plate 21; the large diameter end of each T-shaped groove matches each limiting protrusion 20, and extends vertically upward from the middle position of the corresponding fixing plate 21. The upper surface of the fixing plate 21 is positioned at the middle position, and it must be ensured that when the positive electrode plate 14 or the negative electrode plate 15 is engaged with the corresponding fixing plate 21 through the cooperation of the limiting protrusion 20 and the limiting groove, the upper surface of each limiting protrusion 20 is set in the same horizontal plane as the upper surface of the corresponding fixing plate 21; after the lower ends of the positive electrode plate 14 and the negative electrode plate 15 extend downward from the corresponding fixing plate 21 through the corresponding T-shaped groove, the two fixing plates 21 are then screwed and fixed to the corresponding positions on the lower surface of the lifting plate 18 by countersunk bolts, thereby installing the positive electrode plate 14 and the negative electrode plate 15 on the left and right sides of the lower surface of the lifting plate 18 respectively.

[0029] This utility model includes a filter assembly within the filter chamber 5, and the oxidized wastewater is delivered to the filter chamber 5 for filtration via a water conveying assembly II; wherein, the water conveying assembly II includes a pump II 23, a pipe II 22, a rib plate II, a diversion chamber 24, and a diversion hole 25; as shown Figure 1 , Figure 2 As shown, a matching diversion cavity 24 is horizontally arranged in the filter chamber 5, directly above the filter assembly. The diversion cavity 24 is a hollow cavity, and several diversion holes 25 are evenly spaced and matrix-distributed on its lower surface. A pump II 23 is also arranged on the right side of the right-side partition 2, above the diversion cavity 24, and the outlet of pump II 23 is sealed and connected to the diversion cavity 24. Pipe II 22 is vertically arranged in the electrolysis chamber 4, near the right-side partition 2, and does not interfere with the vertical movement of the negative electrode plate 15. The lower part of pipe II 22... The end extends vertically downward to the inner bottom surface of the box 1, and its upper end extends vertically upward along the corresponding partition 2 to the inner top surface of the box 1. Then it passes horizontally and vertically through the right partition 2 and connects with the inlet of pump II 23. The oxidized wastewater is then pumped into the diversion chamber 24 by pump II 23, and then evenly falls onto the filter assembly for filtration through the diversion hole 25. Several stiffening plates II are also arranged at intervals along the length direction between the left side of the pipe II 22 and the corresponding partition 2, and the pipe II 22 is fixed and reinforced by the stiffening plates II.

[0030] The filter assembly of this utility model includes a filter plate 26, a pull plate 27, a limiting plate I 28, a pin 29, and a handle 30; as shown Figure 1 , Figure 2As shown, a filter plate 26 is horizontally positioned in the middle of the interior of the housing 1, relative to the filter chamber 5, and is horizontally slidably connected to the housing 1. The left side of the filter plate 26 abuts against the corresponding right side of the right-side partition 2, and a matching pull plate 27 is horizontally fixed on its right side. The right side of the pull plate 27 extends horizontally and vertically out of the right side of the housing 1, and symmetrically positioned limiting plates I 28 are horizontally positioned on the upper and lower sides of the part of the pull plate 27 that extends beyond the housing 1. Each limiting plate I 28 has a specific positioning function. Plate I 28 is fixedly connected to the right side of the housing 1. A pin 29 is vertically provided in the middle of the upper surface of the upper limiting plate I 28. The lower end of the pin 29 passes vertically downward through the upper limiting plate I 28, the pull plate 27 and the lower limiting plate I 28 in sequence, and limits the filter plate 26 in the horizontal direction. A handle 30 is also vertically provided on the right side of the pull plate 27. The handle 30 is not interfered with by the two limiting plates I 28, so that the filter plate 26 can be pulled out by the handle 30.

[0031] like Figure 1 , Figure 2 As shown, a drain pipe 32 is horizontally installed on the right side of the box 1 near its bottom, and the left end of the drain pipe 32 extends horizontally and vertically into the interior of the box 1. A solenoid valve III 33 is connected to the right end of the drain pipe 32, and the opening and closing of the drain pipe 32 is controlled by the solenoid valve III 33. A guide plate 31 is horizontally inclined and matched to the filter plate 26 directly below it in the filter chamber 5. The upper end of the guide plate 31 is abutted and fixed to the right side of the partition plate 2 on the right side, and does not interfere with the horizontal sliding of the filter plate 26. The lower end of the guide plate 31 is in close contact with the lower edge of the left end of the drain pipe 32, and collects the filtered wastewater into the drain pipe 32, and then discharges it through the drain pipe 32.

[0032] The working principle of this utility model is as follows: First, wastewater is added to the mixing pipe 10 through the inlet pipe 6, and hydrogen peroxide is added to the mixing pipe 10 through the feed pipe 8. The mixture is thoroughly mixed through the meandering mixing pipe 10 and finally stored in the mixing tank 11. Then, the mixed wastewater in the mixing tank 11 is pumped into the electrolysis chamber 4 by pump I 12. Under the action of the positive electrode plate 14 and the negative electrode plate 15, the wastewater is subjected to electrocatalytic oxidation treatment. Then, pump II 23 pumps the electrocatalytically oxidized wastewater into the diversion chamber 24. The wastewater then falls evenly onto the filter plate 26 through the diversion hole 25 for filtration treatment. The filtered wastewater is collected into the drain pipe 32 through the guide plate 31 and then discharged through the drain pipe 32.

[0033] When maintenance is required on the positive electrode plate 14 or the negative electrode plate 15, the positive electrode plate 14 and the negative electrode plate 15 are raised to the limit position by the lifting plate 18 under the drive of the electric push rod 17. Then, the countersunk bolts are removed, and the positive electrode plate 14 or the negative electrode plate 15 can be removed for maintenance.

[0034] The beneficial effects of this utility model are:

[0035] (1) By setting up a meandering mixing pipe 10, the present invention can effectively mix wastewater and hydrogen peroxide in the mixing tank 11, thereby improving the wastewater oxidation effect after electrocatalysis;

[0036] (2) This utility model facilitates the quick installation and disassembly of the positive electrode plate 14 and the negative electrode plate 15 by using the lifting assembly, the fixing plate 21, the limiting protrusion 20 and the countersunk bolt together, thereby facilitating the maintenance of the electrodes.

[0037] (3) The present invention facilitates the quick installation and disassembly of the filter plate 26 by using the pull plate 27, the limiting plate I 28, the pin 29 and the handle 30 together, thereby facilitating the maintenance and replacement of the filter plate 26.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. An electro-catalytic oxidation wastewater treatment device, characterized by: The utility model provides a kind of waste water treatment device, including box, partition, water inlet pipe, feed pipe, mixing pipe, mixing box, water delivery assembly I, electrolytic mechanism, water delivery assembly II and filter assembly;The inside of the box that is horizontally transversely arranged is vertically longitudinally arranged with partition left and right, and the inside of the box is sequentially divided into mixing chamber, electrolytic chamber and filter chamber by two partitions from left to right, and they are not communicated;Water inlet pipe is communicated and arranged in the left side of the box, and feed pipe is communicated and arranged on the upper surface of the box relative to the position of mixing chamber, and mixing box is further arranged on the inner bottom surface of the box relative to the position of mixing chamber;Mixing pipe is further vertically arranged in the mixing chamber relative to the position of mixing box, and the upper end of the mixing pipe is sealed and communicated with the lower end of the feed pipe, and the lower end of the mixing pipe is communicated with the mixing box, and water inlet pipe is sealed and communicated with mixing pipe by its upper end position, and waste water and hydrogen peroxide are mixed in mixing box through mixing pipe;Electrolytic mechanism is arranged in the electrolytic chamber, and waste water after mixing is sent to electrolytic chamber for oxidation treatment through water delivery assembly I;Filter assembly is arranged in the filter chamber, and waste water after oxidation is sent to filter chamber for filtration treatment through water delivery assembly II. The electrolytic mechanism includes door-shaped frame, lifting assembly, lifting plate, positive plate, negative plate and fixing assembly;Door-shaped frame is further arranged on the upper surface of the box relative to the position of electrolytic chamber, and the opening groove of the door-shaped frame is arranged along horizontal longitudinal direction, and the two opening ends of the door-shaped frame are respectively fixedly connected with the corresponding positions of the upper surface of the box, and are arranged at the right side of the feed pipe;Lifting plate is further horizontally arranged in the door-shaped frame relative to the upper side of the box, and the lifting plate moves vertically up and down in the door-shaped frame relative to the upper side of the box through lifting assembly;Positive plate and negative plate are vertically and symmetrically arranged on the lower surface of the lifting plate, and the vertical length of the positive plate and the negative plate is greater than half of the depth of the electrolytic chamber, and the upper end of the positive plate and the negative plate is fixedly connected with the lower surface of the lifting plate through fixing assembly;Through hole matched with the positive plate is vertically embedded in the upper surface of the box relative to the position of the positive plate and the negative plate, and the positive plate and the negative plate move vertically downward with the lifting plate under the drive of the electric push rod, and are inserted into the electrolytic chamber through the through hole.

2. An electro-catalytic oxidation wastewater treatment device according to claim 1, characterized in that: Further including electromagnetic valve I and electromagnetic valve II;Water inlet pipe is obliquely arranged in the left side of the box, and the lower end of the water inlet pipe obliquely extends into the mixing chamber, and is sealed and communicated with the upper end of the mixing pipe, and waste water is sent into the mixing pipe through the water inlet pipe;Electromagnetic valve I is further communicated and arranged on the upper end of the water inlet pipe, and the on-off of the water inlet pipe is controlled through electromagnetic valve I;The lower end of the feed pipe vertically extends into the mixing chamber, and is sealed and communicated with the upper end of the mixing pipe, and electromagnetic valve II is further communicated and arranged on the upper end of the feed pipe, and hydrogen peroxide is sent into the mixing pipe through the feed pipe, and the on-off of the feed pipe is controlled through electromagnetic valve II.

3. The electro-catalytic oxidation wastewater treatment device according to claim 1, characterized in that: The water delivery assembly I comprises a pump I, a pipe I and a rib plate I; the pump I is arranged on the inner bottom surface of the box body relative to the right side of the mixing box and in the mixing cavity; the inlet of the pump I is in sealed communication with the mixing box, and the outlet is in sealed communication with the lower end of the vertically arranged pipe I; the pipe I is vertically arranged in the mixing cavity at the position corresponding to the partition plate, and the upper end thereof extends vertically upward along the corresponding partition plate to the inner top surface of the box body, and then penetrates the corresponding partition plate horizontally and vertically, so that the mixed wastewater is pumped into the electrolysis cavity through the pump I; the action of the electrolysis mechanism does not interfere with the pipe I, and a plurality of rib plates I are arranged in the length direction of the pipe I between the pipe I and the left side of the corresponding partition plate, so that the pipe I is fixed and strengthened by the rib plates I.

4. The electro-catalytic oxidation wastewater treatment device according to claim 1, characterized in that: The lifting assembly comprises an electric push rod, a sliding rail, a sliding block and a limiting plate II; the electric push rod is vertically arranged at the middle position of the upper surface of the door-shaped frame, the pushing end of the electric push rod extends vertically downward to the inside of the door-shaped frame, and is fixedly connected with the upper surface of the lifting plate at the corresponding position by screwing, and drives the lifting plate to move vertically up and down; the sliding rails are vertically arranged at the front and back positions of the left and right inner sides of the door-shaped frame relative to the position of the lifting plate, and the sliding blocks matched with the sliding rails are arranged at the left and right end surfaces of the lifting plate relative to each sliding rail, and the stability of the vertical up-and-down movement of the lifting plate is ensured by the cooperation of the sliding rails and the sliding blocks; the limiting plates II are arranged at the upper and lower ends of each sliding rail, and each limiting plate II is fixedly connected with the corresponding position of the left and right inner sides of the door-shaped frame, and the vertical movement of the lifting plate is limited upward and downward by the limiting plates II.

5. An electro-catalytic oxidation wastewater treatment device according to claim 4, characterized in that: The upper limit position of the lifting plate needs to ensure that the lower ends of the positive plate and the negative plate are located above the box body, and the lower limit position needs to ensure that the lower half of the positive plate and the negative plate are below the liquid level in the electrolysis cavity, so as to ensure the oxidation effect.

6. An electro-catalytic oxidation wastewater treatment device according to claim 1, characterized in that: Each fixing assembly comprises a limiting protrusion, a fixing plate and a countersunk bolt; the limiting protrusions are arranged at the upper ends of the positive plate and the negative plate, and each limiting protrusion is integrally formed with the corresponding positive plate and negative plate to form a T-shaped structure; a T-shaped groove is vertically embedded in the middle position of each horizontally arranged fixing plate, the small-diameter end of each T-shaped groove is matched with the upper end of the corresponding positive plate or negative plate, and extends vertically downward from the middle position of the lower surface of the corresponding fixing plate; the large-diameter end of each T-shaped groove is matched with each limiting protrusion, and extends vertically upward from the middle position of the upper surface of the corresponding fixing plate, and when the positive plate or negative plate is clamped with the corresponding fixing plate through the cooperation of the limiting protrusions and the limiting grooves, the upper surface of each limiting protrusion is arranged on the same horizontal plane as the upper surface of the corresponding fixing plate; the lower ends of the positive plate and the negative plate extend downward from the corresponding T-shaped groove to the corresponding fixing plate, and then the two fixing plates are fixedly connected with the corresponding positions of the lower surface of the lifting plate by the countersunk bolts, so as to install the positive plate and the negative plate on the left and right sides of the lower surface of the lifting plate.

7. An electro-catalytic oxidation wastewater treatment device according to claim 1, characterized in that: The water delivery assembly II comprises a pump II, a pipe II, a rib plate II, a shunt cavity and a shunt hole; a shunt cavity matched with the filter assembly is horizontally arranged above the filter assembly in the filter cavity; the shunt cavity is a hollow cavity, and a plurality of shunt holes are arranged in the lower surface of the shunt cavity in a matrix distribution; a pump II is arranged on the right side of the right side surface of the partition plate above the shunt cavity; the outlet of the pump II is in sealed communication with the shunt cavity; the pipe II is vertically arranged at the right side partition plate in the electrolytic cavity and does not interfere with the vertical up-down movement of the negative plate; the lower end of the pipe II vertically extends to the inner bottom surface of the box, and the upper end of the pipe II vertically extends to the inner top surface of the box along the corresponding partition plate, then horizontally penetrates through the right side partition plate, and is in communication with the inlet of the pump II, so that the wastewater after oxidation treatment is pumped into the shunt cavity by the pump II, then uniformly falls on the filter assembly through the shunt hole for filtration treatment; a plurality of rib plates II are arranged between the pipe II and the left side surface of the corresponding partition plate in sequence along the length direction of the pipe II, and the pipe II is fixed and strengthened by the rib plates II.

8. An electro-catalytic oxidation wastewater treatment device according to claim 7, characterized in that: The filter assembly comprises a filter plate, a pull plate, a limiting plate I, a pin shaft and a handle; a filter plate matched with the filter cavity is horizontally arranged in the middle of the inside of the box; the filter plate is horizontally and transversely connected with the box; the left side surface of the filter plate abuts against the corresponding position of the right side surface of the right side partition plate, and a pull plate matched with the filter plate is horizontally arranged on the right side surface of the filter plate; the right side surface of the pull plate horizontally and vertically extends out of the right side surface of the box; limiting plates I are horizontally and symmetrically arranged on the upper and lower sides of the part of the pull plate beyond the box; each limiting plate I is fixedly connected with the right side surface of the box; a pin shaft is vertically arranged on the upper surface of the middle of the upper limiting plate I; the lower end of the pin shaft vertically and sequentially penetrates through the upper limiting plate I, the pull plate and the lower limiting plate I, and the filter plate is horizontally positioned; a handle is vertically arranged on the right side surface of the pull plate; the handle is arranged without interfering with the two limiting plates I; the filter plate is pulled by the handle.

9. An electro-catalytic oxidation wastewater treatment device according to claim 8, characterized in that: A flow guide plate, a drain pipe and an electromagnetic valve III are further arranged; a drain pipe is horizontally arranged on the right side surface of the box near the bottom end; the left end of the drain pipe horizontally and vertically extends to the inside of the box; an electromagnetic valve III is arranged on the right end of the drain pipe in communication; the electromagnetic valve III controls the opening and closing of the drain pipe; a flow guide plate matched with the filter plate is horizontally and obliquely arranged below the filter plate in the filter cavity; the upper end of the flow guide plate abuts against and is fixed on the corresponding position of the right side surface of the right side partition plate, and does not interfere with the horizontal transverse sliding of the filter plate; the lower end of the flow guide plate abuts against and contacts the lower edge of the left end of the drain pipe, and collects the filtered wastewater into the drain pipe, and then discharges the wastewater through the drain pipe.

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