An electrochemical oxidation device for treating coking wastewater

Abstract

The present invention belongs to the technical field of water treatment, and specifically relates to an electrochemical oxidation coking wastewater treatment device, which includes: a body component, a protection component, and an adjustment component; wherein, the body component includes an oxidation tank, a tank cover assembled on the top of the oxidation tank, an exhaust valve installed on the inner bottom surface of the oxidation tank, an exhaust pipe connected to the exhaust valve, an aeration device installed in the oxidation tank and connected to the exhaust pipe, a lifting ring fixed in the middle of the tank cover, and a water inlet pipe and a drain pipe arranged on the oxidation tank; the protection component is arranged in the oxidation tank, and the protection component includes a fixed seat placed in the oxidation tank and a plate electrode inserted into the fixed seat. Through the protection component, the present invention can protect the plate electrode, and at the same time, use the filter layer to preliminarily filter the sewage, prevent various sundries in the sewage from contacting the plate electrode, and at the same time do not affect the passage of the sewage, effectively reducing the loss efficiency of the plate electrode.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, in particular to an electrochemical oxidation coking wastewater treatment device. Background Art

[0002] With the development of modern industry, the volume of industrial wastewater is increasing, and its composition is becoming increasingly complex. The treatment of industrial wastewater containing high concentrations of recalcitrant organic pollutants has long been a vexing challenge. Electrocatalytic oxidation technology involves the oxidative decomposition of organic matter through the action of free radicals generated by an electric field or an electrode surface. Recently, the use of electrocatalytic oxidation technology to treat recalcitrant organic wastewater has been gaining increasing attention.

[0003] Existing electrochemical oxidation equipment generally fixes the positive and negative plates used for oxidation directly in the treatment tank. However, the electrode materials are generally expensive, easy to wear and tear, and have high usage costs. This leads to various impurities in the sewage accompanied by the impact of the water flow, which will accelerate the wear of the electrodes and increase the treatment cost. Therefore, we propose an electrochemical oxidation coking wastewater treatment device that can protect the electrodes while ensuring their normal oxidation operation. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in the present invention is:

[0006] An electrochemical oxidation coking wastewater treatment device, comprising: a body component, a protection component and an adjustment component; wherein, the body component includes an oxidation tank, a tank cover assembled on the top of the oxidation tank, an exhaust valve installed on the inner bottom surface of the oxidation tank, an exhaust pipe connected to the exhaust valve, an aeration device installed in the oxidation tank and connected to the exhaust pipe, a lifting ring fixed in the middle of the tank cover, and a water inlet pipe and a drain pipe arranged on the oxidation tank; the protection component is arranged in the oxidation tank, and the protection component includes a fixed seat placed in the oxidation tank, a plate electrode inserted into the fixed seat, protection frames clamped on both sides of the plate electrode and located in the fixed seat, positioning blocks arranged on the inner side of the protection frames and inserted on the fixed seat, a filtering port opened in the middle of the protection frames, a grid plate arranged on the inner side of the filtering port, a net cover plate installed on the outer side of the filtering port, a filtering layer stacked in the grid plate, and a connection block fixed on the top of the protection frame; the adjustment component is arranged on the tank cover, and the adjustment component includes an electric push rod installed on the top of the tank cover, a pressing plate fixed on the driving end of the electric push rod, an adjustment groove opened in the middle of the tank cover, a clamping groove opened on the inner side of the adjustment groove, a positioning plate clamped in the clamping groove for the connection block to connect, an electric connection head fixed in the positioning plate for inserting and fixing the plate electrode, an adjustment plate installed on the positioning plate and passing through the adjustment groove, and an electric control box installed on the tank cover and electrically connected to the electric connection head.

[0007] In a preferred example of the present invention, it can be further configured that: a sealing edge is provided on the side of the tank cover, and a protective cover for protection is also provided on the tank cover.

[0008] In a preferred example of the present invention, it can be further configured that: both sides of the bottom of the fixed seat are shovel-shaped structures.

[0009] In a preferred example of the present invention, it can be further configured that: the filtering layer is composed of multiple groups of filtering membranes with different pore diameters, and the pore diameter values of the multiple groups of filtering membranes gradually decrease from outside to inside.

[0010] In a preferred example of the present invention, it can be further configured that: a guiding block clamped on the side surface of the clamping groove is provided on the side surface of the positioning plate.

[0011] In a preferred example of the present invention, it can be further configured that: a pressing pad is fixed on the pressing plate.

[0012] In a preferred example of the present invention, it can be further configured that: grooves adapted to the plate electrode are respectively opened at the bottom of the electric connection head and the middle of the fixed seat.

[0013] In a preferred example of the present invention, it can be further configured that: the connection block adopts a hard rubber connection structure.

[0014] The above technical solution of the present invention has the following beneficial technical effects:

[0015] 1. Through the protection component, the present invention can protect the electrode plates. At the same time, the filter layer is used to preliminarily filter the sewage, preventing various sundries in the sewage from contacting the electrode plates, and at the same time not affecting the passage of the sewage, effectively reducing the loss efficiency of the electrode plates.

[0016] 2. Through the adjustment component, the present invention can adjust the position of the electrode plates as needed, and at the same time can increase or decrease the electrode plates according to the treatment specifications, with high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of a wastewater treatment device according to an embodiment of the present invention;

[0018] Figure 2 is an enlarged view of part A of the wastewater treatment device according to an embodiment of the present invention;

[0019] Figure 3 is an enlarged view of part B of the wastewater treatment device according to an embodiment of the present invention;

[0020] Figure 4 is a top view of a wastewater treatment device according to an embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of the inner structure of the pool cover according to an embodiment of the present invention.

[0022] REFERENCE SIGNS:

[0023] 100, body assembly; 110, oxidation tank; 120, pool cover; 121, sealing edge; 122, protective cover; 130, exhaust valve; 140, exhaust pipe; 150, aeration equipment; 160, lifting ring; 170, water inlet pipe; 180, drain pipe;

[0024] 200, protection component; 210, fixed seat; 220, electrode plate; 230, protection frame; 240, positioning block; 250, filter port; 260, grid plate; 270, net cover plate; 280, filter layer; 290, connecting block;

[0025] 300, adjustment component; 310, electric push rod; 320, pressing plate; 321, pressing pad; 330, adjustment groove; 340, clamping groove; 350, positioning plate; 351, guiding block; 360, electrical connector; 370, adjustment plate; 380, electric control box. DETAILED DESCRIPTION OF THE INVENTION

[0026] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] The following describes a device for treating coking wastewater by electrochemical oxidation provided by some embodiments of the present invention with reference to the accompanying drawings.

[0028] Embodiment 1:

[0029] Combined Figures 1-5 As shown, a device for treating coking wastewater by electrochemical oxidation provided by the present invention includes: a body assembly 100, a protection assembly 200, and an adjustment assembly 300;

[0030] Among them, the body assembly 100 includes an oxidation tank 110, a tank cover 120 assembled on the top of the oxidation tank 110, an exhaust valve 130 installed on the inner bottom surface of the oxidation tank 110, an exhaust pipe 140 connected to the exhaust valve 130, an aeration device 150 installed in the oxidation tank 110 and connected to the exhaust pipe 140, a lifting ring 160 fixed in the middle of the tank cover 120, and a water inlet pipe 170 and a drain pipe 180 provided on the oxidation tank 110.

[0031] Specifically, the aeration device 150 can fill oxygen along the exhaust pipe 140, so that the oxygen is ejected from the exhaust valve 130 into the sewage, and the sewage is oxidized in cooperation with the energized electrode plate 220. The sewage enters through the water inlet pipe 170 and is discharged through the drain pipe 180, which is convenient to use.

[0032] Furthermore, a sealing edge 121 is provided on the side of the tank cover 120, and a protective cover 122 for protection is also provided on the tank cover 120. The sealing edge 121 improves the sealing performance between the tank cover 120 and the oxidation tank 110, and the protective cover 122 can protect the internal structure and ensure the sealing performance, which is more reasonable.

[0033] Among them, the protection component 200 is arranged in the oxidation tank 110. The protection component 200 includes a fixed seat 210 placed in the oxidation tank 110, a plate electrode 220 inserted into the fixed seat 210, protection frames 230 clamped to the fixed seat 210 and located on both sides of the plate electrode 220, positioning blocks 240 arranged on the inner side of the protection frames 230 and inserted on the fixed seat 210, a filtering port 250 opened in the middle of the protection frames 230, a grid plate 260 arranged on the inner side of the filtering port 250, a net cover plate 270 installed on the outer side of the filtering port 250, a filtering layer 280 stacked in the grid plate 260, and a connecting block 290 fixed to the top of the protection frames 230. The plate electrode 220 can be protected by the protection component 200. At the same time, the filtering layer 280 is used to preliminarily filter the sewage, preventing various sundries in the sewage from contacting the plate electrode 220, and not affecting the passage of the sewage, effectively reducing the loss efficiency of the plate electrode 220.

[0034] Specifically, both sides of the bottom of the fixed seat 210 are shovel-shaped structures. When the plate electrode 220 is adjusted to drive the fixed seat 210 to move, the sundries precipitated at the bottom of the oxidation tank 110 can be shoveled up. First, it prevents the sundries from remaining at the bottom of the fixed seat 210 and affecting the plate electrode 220 from maintaining verticality. Second, it can clean up the sundries and discharge them from the drain pipe 180.

[0035] Furthermore, the connecting block 290 adopts a hard rubber connection structure, which can play a role in shock absorption and buffering, preventing the protection frames 230 from being damaged by impact.

[0036] Among them, the adjustment component 300 is arranged on the pool cover 120. The adjustment component 300 includes an electric push rod 310 installed on the top of the pool cover 120, a pressing plate 320 fixed to the driving end of the electric push rod 310, an adjustment groove 330 opened in the middle of the pool cover 120, a clamping groove 340 opened on the inner side of the adjustment groove 330, a positioning plate 350 clamped in the clamping groove 340 for connecting the connecting block 290, an electric connector 360 fixed in the positioning plate 350 for inserting and fixing the plate electrode 220, an adjustment plate 370 installed on the positioning plate 350 and passing through the adjustment groove 330, and an electric control box 380 installed on the pool cover 120 and electrically connected to the electric connector 360. The position of the plate electrode 220 can be adjusted as needed through the adjustment component 300. At the same time, the plate electrode 220 can be increased or decreased according to the treatment specifications, with high practicability. In addition, grooves adapted to the plate electrode 220 are respectively opened at the bottom of the electric connector 360 and the middle of the fixed seat 210, and the plate electrode 220 can be fixed from the upper and lower sides, with a good fixing effect.

[0037] Specifically, a guiding block 351 is provided on the side of the positioning plate 350 and is clamped on the side of the clamping groove 340. The guiding block 351 enables the positioning plate 350 to move left and right in the clamping groove 340 to adjust the position, thereby adjusting the distance between the electrode plates 220 for use as required.

[0038] Furthermore, a pressing pad 321 is fixed on the pressing plate 320. The pressing pad 321 is made of soft rubber structure and can adaptively deform after the pressing plate 320 presses the adjusting plate 370, improving the fixing effect on the adjusting plate 370.

[0039] Embodiment 2:

[0040] Combined with Figures 1-2 As shown, on the basis of Embodiment 1, the filtering layer 280 is composed of multiple groups of filter membranes with different pore diameters, and the pore diameter values of the multiple groups of filter membranes gradually decrease from the outside to the inside. Composed of multiple groups of filter membranes with different pore diameters, sundries of different sizes can be filtered, and then the sewage can pass through and flow through the electrode plates 220, with a better protection effect.

[0041] The process of an electrochemical oxidation coking wastewater treatment device in the present invention is as follows: First, place the fixed seat 210 at the bottom of the oxidation tank 110, then insert the electrode plates 220 into the fixed seat 210. After placement, use a crane facility to lift the tank cover 120 through the lifting ring 160. After moving above the oxidation tank 110, lower the tank cover 120 so that the two protection frames 230 of the same group are located on both sides of the electrode plates 220 until the protection frames 230 reach the bottom completely. At this time, the positioning blocks 240 are inserted and fixed on the fixed seat 210, the tank cover 120 covers the oxidation tank 110, then open the protective cover 122, drive the positioning plate 350 to move in the clamping groove 340 by moving the adjusting plate 370, thereby adjusting the position of the electrode plates 220. After adjustment, introduce the wastewater to be cleaned through the water inlet pipe 170, then energize the electrode plates 220 below the electrical connectors 360 through the electrical control box 380, and the oxygen discharged by the aeration device 150 is discharged from the exhaust valve 130 through the exhaust pipe 140. When the wastewater is filtered, it flows through the electrode plates 220 towards the drain pipe 180 for oxidation.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electrochemical oxidation device for treating coking wastewater, characterized in that, Comprising: A body assembly (100), including an oxidation tank (110), a tank cover (120) assembled on the top of the oxidation tank (110), an exhaust valve (130) installed on the inner bottom surface of the oxidation tank (110), an exhaust pipe (140) connected to the exhaust valve (130), an aeration device (150) installed on the oxidation tank (110) and connected to the exhaust pipe (140), a lifting ring (160) fixed in the middle of the tank cover (120), and a water inlet pipe (170) and a drain pipe (180) arranged on the oxidation tank (110); A protection assembly (200), arranged inside the oxidation tank (110), the protection assembly (200) includes a fixed seat (210) placed inside the oxidation tank (110), a plate electrode (220) inserted into the fixed seat (210), protection frames (230) clamped on the fixed seat (210) and located on both sides of the plate electrode (220), positioning blocks (240) arranged on the inner side of the protection frames (230) and inserted on the fixed seat (210), a filtering port (250) opened in the middle of the protection frames (230), a grid plate (260) arranged on the inner side of the filtering port (250), a net cover plate (270) installed on the outer side of the filtering port (250), a filtering layer (280) stacked inside the grid plate (260), and a connecting block (290) fixed on the top of the protection frames (230); An adjustment assembly (300), arranged on the tank cover (120), the adjustment assembly (300) includes an electric push rod (310) installed on the top of the tank cover (120), a pressing plate (320) fixed on the driving end of the electric push rod (310), an adjustment groove (330) opened in the middle of the tank cover (120), a clamping groove (340) opened on the inner side of the adjustment groove (330), a positioning plate (350) clamped in the clamping groove (340) for connecting the connecting block (290), an electrical connector (360) fixed inside the positioning plate (350) for inserting and fixing the plate electrode (220), an adjustment plate (370) installed on the positioning plate (350) and passing through the adjustment groove (330), and an electric control box (380) installed on the tank cover (120) and electrically connected to the electrical connector (360).

2. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, A sealing edge (121) is arranged on the side of the tank cover (120), and a protective cover (122) for protection is also arranged on the tank cover (120).

3. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, Both sides of the bottom of the fixed seat (210) are in a shovel-shaped structure.

4. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, The filtering layer (280) is composed of multiple groups of filtering membranes with different pore diameters, and the pore diameter values of the multiple groups of filtering membranes gradually decrease from outside to inside.

5. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, A guiding block (351) clamped on the side of the clamping groove (340) is arranged on the side of the positioning plate (350).

6. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, A pressing pad (321) is fixed on the pressing plate (320).

7. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, Grooves adapted to the plate electrode (220) are respectively opened at the bottom of the electrical connector (360) and the middle of the fixed seat (210).

8. An electrochemical oxidation coking wastewater treatment device according to claim 1, characterized in that, The connecting block (290) adopts a hard rubber connection structure.

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