Electrocatalytic oxidation device for chemical wastewater

Abstract

The utility model discloses an electrocatalytic oxidation device for chemical wastewater, which relates to the technical field of chemical wastewater treatment, and is characterized in that an electrocatalytic mechanism is circumferentially arranged in a pool body of a catalytic pool and comprises a plurality of groups of electrocatalytic converters arranged at the bottom of the catalytic pool along the circumferential direction of the catalytic pool; the liquid inlet end of each set of electro-catalytic converter communicates with the supply pipeline, and the liquid outlet end of each set of electro-catalytic converter communicates with a flow guide pipeline. According to the design, on the basis of circumferential arrangement of the electro-catalysis mechanisms, to-be-treated chemical wastewater is subjected to divided-flow type electro-catalysis treatment, so that the electro-catalysis oxidation comprehensiveness of the chemical wastewater is ensured, and when the catalyzed chemical wastewater is subjected to confluence discharge, the water flow impact force can also serve as braking thrust to push the water flow braking mechanism to run automatically, so that the water flow braking effect is improved. Then the material stirring paddle is pushed to rotate, the treated foam floating on the water surface is scraped and cleaned, and the situation that indissolvable foam is mixed with waste water and adheres to a pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the field of chemical wastewater treatment, in particular to an electrocatalytic oxidation device for chemical wastewater. Background Art

[0002] Electrocatalytic oxidation technology involves causing pollutants to undergo direct electrochemical reactions at electrodes or utilizing highly oxidizing active species generated on the electrode surface to cause redox reactions in pollutants. Anodic oxidation can convert organic and some inorganic pollutants into harmless substances, while cathode oxidation can remove heavy metal ions from water. It is widely used in the purification of chemical wastewater. For example, a device for electrocatalytic oxidation deep treatment of chemical wastewater (publication number CN219217667U) disclosed on the China Patent Network demonstrates that, during operation, this type of device incorporates an agitator to ensure more uniform mixing of the wastewater within the inner kettle, more comprehensive contact with the electrodes, and a good electrolysis effect, resulting in thorough wastewater treatment.

[0003] However, the electrocatalytic oxidation device for chemical wastewater adopted in the above-mentioned patent disclosure and the existing market still has some shortcomings: the existing method of using a stirring component to drive the chemical wastewater to stir and drive, and to carry out a catalytic reaction with the electrode, the stirring of the chemical wastewater is relatively limited, and the catalytic reaction with the electrode is not comprehensive, which easily leads to an incomplete catalytic reaction, resulting in a relatively low catalytic reaction efficiency of the chemical wastewater. To this end, those skilled in the art provide an electrocatalytic oxidation device for chemical wastewater to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides an electrocatalytic oxidation device for chemical wastewater, which solves the problem of relatively low electrocatalytic effect of the existing chemical wastewater electrocatalytic oxidation device proposed in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electrocatalytic oxidation device for chemical wastewater, comprising a catalytic pool and a bubble collecting pool installed at the outlet of the catalytic pool;

[0006] An electrocatalytic mechanism is circumferentially arranged inside the catalytic pool;

[0007] A supporting stand is provided in the middle of the catalytic pool, and a water flow brake mechanism is provided at the top of the support of the supporting stand. The rotating disk of the water flow brake mechanism is provided with a material paddle horizontally opposite to the pool mouth of the bubble collecting pool along its circumference.

[0008] The electrocatalytic mechanism includes a plurality of electrocatalysts arranged along the circumference of the catalytic pool and arranged at the bottom of the pool, wherein the liquid inlet end of each group of electrocatalysts is connected to the supply pipeline, and the liquid discharge end of each group of electrocatalysts is connected to the diversion pipeline;

[0009] The water flow brake mechanism includes a brake cylinder mounted on the upper end of the support frame, a brake impeller is rotatably connected inside the cylinder sleeve of the brake cylinder, and a differential transmission component is provided on the top of the cylinder sleeve of the brake cylinder along the central axis of the brake impeller, and the differential transmission component is fixedly connected to the material paddle.

[0010] As a further technical solution of the present invention: a plurality of groups of the electrocatalysts are arranged in a ring-shaped symmetrical pattern relative to the center of the catalytic pool.

[0011] As a further technical solution of the present invention: the supply pipeline includes a supply ring pipe, one side of the pipeline of the supply ring pipe is connected to a liquid injection valve, and the inner tube of the supply ring pipe is connected along its circumference to a multi-component flow pipe that is connected to the electrocatalyst.

[0012] As a further technical solution of the present invention: the differential transmission component includes a rotating seat installed on the upper end of the brake cylinder sleeve and a brake gear installed on the top of the central axis of the brake impeller. The internal rotation of the rotating seat is connected to a transmission gear plate fixedly connected to the feed paddle, and the transmission gear plate and the brake gear are meshed and transmitted through circumferentially arranged differential gears.

[0013] As a further technical solution of the present invention: the number of the material-prying paddles is three groups, and the three groups of material-prying paddles are arranged symmetrically in a star-triangle shape relative to the axis of the transmission gear disc.

[0014] As a further technical solution of the present invention: a drain valve is installed on one side of the bottom of the catalytic pool, and a discharge valve is installed on one side of the bottom of the bubble collecting pool.

[0015] The utility model provides an electrocatalytic oxidation device for chemical wastewater, which has the following beneficial effects compared with the prior art:

[0016] The electrocatalytic oxidation device for chemical wastewater of this design is based on the circumferential arrangement of the electrocatalytic mechanism, and performs diversion-type electrocatalytic treatment on the chemical wastewater to be treated, so as to ensure the comprehensiveness of the electrocatalytic oxidation of the chemical wastewater and improve the catalytic effect of the chemical wastewater. Moreover, when the chemical wastewater after catalysis is discharged in a convergent manner, the impact force of the water flow can also serve as a braking thrust, driving the water flow braking mechanism to self-operate, and then driving the paddle to rotate, scraping and cleaning the foam floating on the water surface after treatment, so as to avoid the insoluble foam from mixing with the wastewater, causing adhesion to the pipe and blockage due to long-term accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an electrocatalytic oxidation device for chemical wastewater;

[0018] Figure 2It is a partial cross-sectional view of an electrocatalytic oxidation device for chemical wastewater;

[0019] Figure 3 This is a schematic diagram of the structure of an electrocatalytic mechanism in an electrocatalytic oxidation device for chemical wastewater;

[0020] Figure 4 This is a structural schematic diagram of a water flow braking mechanism in an electrocatalytic oxidation device for chemical wastewater.

[0021] In the figure: 1. Catalytic tank; 2. Drain valve; 3. Bubble collecting tank; 4. Discharge valve; 5. Brake cylinder; 6. Material paddle; 7. Support stand; 8. Supply pipeline; 81. Supply ring pipe; 82. Liquid injection valve; 83. Diverter pipe; 9. Electrocatalyst; 10. Diversion pipeline; 11. Brake impeller; 12. Rotating seat; 13. Transmission gear plate; 14. Differential gear; 15. Brake gear. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution for an electrocatalytic oxidation device for chemical wastewater: an electrocatalytic oxidation device for chemical wastewater, comprising a catalytic pool 1 and a bubble collecting pool 3 installed at the pool mouth of the catalytic pool 1, an electrocatalytic mechanism is circumferentially arranged inside the pool body of the catalytic pool 1, the electrocatalytic mechanism comprises a plurality of groups of electrocatalysts 9 arranged at the bottom of the pool along the circumference of the catalytic pool 1, the liquid inlet end of each group of electrocatalysts 9 is connected to a supply pipeline 8, the supply pipeline 8 comprises a supply ring pipe 81, a liquid injection valve 82 is installed on one side of the pipeline of the supply ring pipe 81, and the inner tube of the supply ring pipe 81 is connected to a plurality of groups of shunt pipes 83 connected to the electrocatalyst 9 along its circumference, based on the combination of the supply ring pipe 81 and the shunt pipe 83 in the supply pipeline 8, the chemical wastewater to be treated is transported to the electrocatalyst 9 in a shunt manner for electrocatalytic oxidation, thereby ensuring the comprehensiveness of the electrocatalytic oxidation of the chemical wastewater.

[0024] The discharge end of each group of electrocatalysts 9 is connected to a diversion pipe 10, and multiple groups of electrocatalysts 9 are arranged in a ring-shaped symmetrical manner relative to the center of the catalytic pool 1. The chemical wastewater catalyzed by the electrocatalysts 9 is guided by the diversion pipe 10 and converges into the brake cylinder 5. As a braking thrust, it drives the brake impeller 11 to rotate and then flows into the catalytic pool 1 for discharge.

[0025] A support stand 7 is provided in the middle of the catalytic tank 1, and a water flow brake mechanism is provided at the top of the support stand 7. The water flow brake mechanism includes a brake cylinder 5 mounted on the top of the support stand 7. The cylinder sleeve of the brake cylinder 5 is rotatably connected to the brake impeller 11, and a differential transmission component is provided on the top of the cylinder sleeve of the brake cylinder 5 along the central axis of the brake impeller 11. The differential transmission component is fixedly connected to the material paddle 6. The differential transmission component includes a rotating seat 12 installed on the upper end of the cylinder sleeve of the brake cylinder 5 and a rotating seat 12 installed on the brake impeller 11. The brake gear 15 at the top of the central axis of the impeller 11 and the internal rotation of the rotating seat 12 are connected to the transmission gear plate 13 fixedly connected to the material paddle 6, and the transmission gear plate 13 and the brake gear 15 are engaged and transmitted through the circumferentially arranged differential gears 14. When the brake impeller 11 rotates, it drives the brake gear 15 at the top of its central axis to rotate, and then uses the engagement transmission of the differential gear 14 to drive the transmission gear plate 13 to operate smoothly at a differential speed, thereby pushing the material paddle 6 to rotate and scraping off the foam floating on the water surface.

[0026] The rotating disk of the water flow braking mechanism is provided with a paddle 6 along its circumference, which is horizontally opposite to the mouth of the bubble collecting pool 3. There are three groups of paddles 6, and the three groups of paddles 6 are arranged symmetrically in a star-triangle shape relative to the axis of the transmission gear disk 13. The rotation braking of the paddle 6 is utilized to circulate and scrape the insoluble foam floating on the surface of the chemical wastewater into the bubble collecting pool 3, separate and collect it from the chemical wastewater, and prevent the insoluble foam from adhering to the circulation pipeline.

[0027] A drain valve 2 is installed on one side of the bottom of the catalytic pool 1, and a discharge valve 4 is installed on one side of the bottom of the bubble collecting pool 3. By opening the drain valve 2, the wastewater after electrocatalytic oxidation is discharged, and by opening the discharge valve 4, the insoluble foam collected by scraping is diverted and discharged, thereby realizing the diversion of bubbles and water flow, and preventing bubbles from entraining water flow and mixing, adhering to or clogging the circulation pipe.

[0028] The working principle of the present invention is as follows: when the electrocatalytic oxidation device is used to treat chemical wastewater, the chemical wastewater to be treated is pumped into the supply pipeline 8 by using external pumping equipment. Based on the combination of the supply ring pipe 81 and the diversion pipe 83 in the supply pipeline 8, the chemical wastewater to be treated is diverted to the electrocatalyst 9 for electrocatalytic oxidation to ensure the comprehensive electrocatalytic oxidation of the chemical wastewater. After being catalyzed by the electrocatalyst 9, the chemical wastewater is guided by the diversion pipe 10 and converges into the brake cylinder 5. As a braking thrust, it drives the brake impeller 11 to rotate, and then flows into the catalytic tank 1 for discharge.

[0029] While the brake impeller 11 rotates, it drives the brake gear 15 at the top of its central axis to rotate, and then utilizes the meshing transmission of the differential gear 14 to drive the transmission gear plate 13 to operate smoothly at a differential speed, pushing the paddle 6 to rotate, scraping off the foam floating on the water surface, and circulate the insoluble foam floating on the surface of the chemical wastewater into the bubble collecting tank 3, separate and collect it from the chemical wastewater, and avoid the insoluble foam from adhering to the circulation pipeline. Then, in this way, the chemical wastewater is subjected to an electrocatalytic treatment process in a non-stop form, and its catalysis is more comprehensive and the catalytic efficiency is more efficient.

[0030] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An electrocatalytic oxidation device for chemical wastewater, characterized in that: It comprises a catalytic pool (1) and a bubble collecting pool (3) installed at the pool opening of the catalytic pool (1); The catalytic pool (1) has an electrocatalytic mechanism arranged circumferentially inside the pool body; A supporting stand (7) is provided in the middle of the catalytic pool (1), and a water flow brake mechanism is provided at the top of the bracket of the supporting stand (7), and a rotating disk of the water flow brake mechanism is provided with a material paddle (6) along its circumference and horizontally opposite to the pool opening of the bubble pool (3); The electrocatalytic mechanism comprises a plurality of groups of electrocatalysts (9) arranged along the circumference of the catalyst pool (1) and arranged at the bottom of the pool, wherein the liquid inlet end of each group of electrocatalysts (9) is connected to the supply pipeline (8), and the liquid discharge end of each group of electrocatalysts (9) is connected to the diversion pipeline (10); The water flow brake mechanism comprises a brake cylinder (5) mounted on the upper end of a support frame (7), a brake impeller (11) being rotatably connected to the inner portion of a cylinder sleeve of the brake cylinder (5), and a differential transmission component being provided at the top of the cylinder sleeve of the brake cylinder (5) along the central axis of the brake impeller (11), and the differential transmission component being fixedly connected to a paddle (6).

2. The electrocatalytic oxidation device for chemical wastewater according to claim 1, characterized in that: The plurality of groups of electrocatalysts (9) are arranged in a ring-shaped symmetrical arrangement relative to the center of the catalytic pool (1).

3. The electrocatalytic oxidation device for chemical wastewater according to claim 1, characterized in that: The supply pipeline (8) comprises a supply ring pipe (81), one side of which is connected to a liquid injection valve (82), and the inner pipe of the supply ring pipe (81) is connected to a multi-component flow pipe (83) connected to the electrocatalyst (9) along its circumferential direction.

4. The electrocatalytic oxidation device for chemical wastewater according to claim 1, characterized in that: The differential transmission component comprises a rotating seat (12) mounted on the upper end of the cylinder sleeve of the brake cylinder (5) and a brake gear (15) mounted on the top end of the central axis of the brake impeller (11); the rotating seat (12) is internally rotatably connected to a transmission toothed disc (13) fixedly connected to the paddle (6); and the transmission toothed disc (13) and the brake gear (15) are meshed and transmitted via circumferentially arranged differential gears (14).

5. The electrocatalytic oxidation device for chemical wastewater according to claim 4, characterized in that: The number of the material-moving paddles (6) is three groups, and the three groups of material-moving paddles (6) are arranged symmetrically in a star-triangle pattern relative to the axis of the transmission gear disc (13).

6. The electrocatalytic oxidation device for chemical wastewater according to claim 1, characterized in that: A liquid discharge valve (2) is installed on one side of the bottom of the catalytic pool (1), and a flow relief valve (4) is installed on one side of the bottom of the bubble collecting pool (3).

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