CN216303350U - Hollow cathode tube type electrocatalytic oxidation cathode device - Google Patents
Hollow cathode tube type electrocatalytic oxidation cathode device Download PDFInfo
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- CN216303350U CN216303350U CN202122560224.6U CN202122560224U CN216303350U CN 216303350 U CN216303350 U CN 216303350U CN 202122560224 U CN202122560224 U CN 202122560224U CN 216303350 U CN216303350 U CN 216303350U
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Abstract
The utility model discloses a hollow cathode tube type electrocatalytic oxidation cathode device, which comprises a hollow tube cathode, wherein the hollow tube cathode is provided with a matched anode, the hollow tube cathode and the anode are connected by a direct-current power supply, a tank body is arranged outside the hollow tube cathode and the anode, the top of the hollow tube cathode is provided with an aeration component, the aeration component comprises an air inlet pipe fixedly arranged at the top of the hollow tube cathode, the air inlet pipe is connected with an aeration pipe inserted into the hollow tube cathode, the surface of the middle lower part of the aeration pipe is provided with aeration holes, the aeration holes incline downwards when being arranged, the bottom of the tank body is provided with a sludge collection component corresponding to the bottom of the aeration pipe, the sludge collection component comprises a funnel-shaped sludge hopper, and the bottom of the hollow tube cathode is movably provided with a gas collection component. The utility model increases the contact effect between the sewage and the hollow tube cathode through aeration, and simultaneously reduces the negative effect caused by the deposition of impurities on the hollow tube cathode due to the arrangement of the gas collection assembly.
Description
Technical Field
The utility model relates to the technical field of electrocatalytic oxidation equipment, in particular to a hollow cathode tube type electrocatalytic oxidation cathode device.
Background
The electrocatalytic oxidation method is that organic pollutants are subjected to direct electrochemical reaction on an electrode or strong oxidation active substances are generated on the surface of the electrode to enable the pollutants to be subjected to redox conversion. The oxidation method has the realization mechanism of direct oxidation and indirect oxidation, the direct oxidation is the oxidation generated by-OH groups in the solution, the direct oxidation is generated by water through electrochemical action, the group has strong oxidation activity, and the action substance has no selectivity. Under suitable electrode material and operating condition, to some highly difficult waste water, to its pollutant kind, after adding suitable electrolyte, can effectively promote waste water electrolytic treatment effect. The electrocatalytic oxidation method has the advantages of strong adaptability, high controllability and the like, can not increase additional environmental pollutants while treating wastewater pollutants, and is a novel environment-safe treatment method.
The existing device for treating sewage by an electrocatalytic oxidation method often neglects the problem that the catalytic efficiency is influenced by the impurities attached to the surface of the electrode after long-time treatment when in use, thereby reducing the efficiency of sewage treatment; when the reaction speed is increased by aeration, fine bubbles generated after aeration have a weak stirring effect and are easy to generate cavitation, and when the problem of gathering fine bubbles is solved, the problem of unstable contact of the treatment surface also exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical defects and provides a hollow cathode tube type electrocatalytic oxidation cathode device.
The utility model discloses a hollow cathode tube type electrocatalytic oxidation cathode device, which comprises a hollow tube cathode, wherein the hollow tube cathode is provided with a matched anode, the hollow tube cathode and the anode are connected by a direct current power supply, a tank body is arranged outside the hollow tube cathode and the anode, a water inlet pipe and a water outlet pipe are arranged on the tank body, an aeration component is arranged at the top of the hollow tube cathode, the aeration component comprises an air inlet pipe fixedly arranged at the top of the hollow tube cathode, the air inlet pipe is connected with an aeration pipe inserted into the hollow tube cathode, aeration holes are formed in the surface of the middle lower part of the aeration pipe, the aeration holes incline downwards when being formed, a gas collection component is movably arranged at the bottom of the hollow tube cathode, the gas collection component comprises a gas collection plate and hourglass-shaped gas collection holes formed in the gas collection plate, and further comprises elastic mechanisms supporting the gas collection plate at two sides, the gas collecting plate is provided with a mounting groove matched with the hollow pipe cathode, and the bottom of the pool body corresponding to the bottom of the aeration pipe is provided with a mud collecting component.
Furthermore, the mud collecting assembly comprises a funnel-shaped mud bucket, and a filter plate is arranged at the top of the mud bucket.
Furthermore, funnel-shaped filter holes are formed in the filter plate, namely the diameters of the filter holes are sequentially reduced from top to bottom.
Furthermore, the number of the mud buckets is two, and the bottom of each mud bucket is connected with a mud discharging pipe.
Furthermore, the top of the tank body is provided with a clamping groove for installing the cathode and the anode of the hollow tube.
Furthermore, elastic mechanism includes the activity and pegs graft in the spacing post of the installation of both ends about the movable rod and the movable rod at gas collection board both ends, still including installing in the spring of installing between the spacing post of gas collection board bottom and bottom.
According to the hollow cathode tube type electrocatalytic oxidation cathode device, gas is rapidly discharged from the aeration holes through the aeration effect of the aeration tubes in the hollow tube cathodes, peripheral sewage is driven to move violently, water mist can be generated by controlling the aeration intensity, the contact effect between the sewage and the hollow tube cathodes is increased, and therefore the reaction efficiency is increased; the gas collection assembly enables fine bubbles to be gathered to form large bubbles after the action of the aeration pipe, the large bubbles move upwards from the bottom of the tank body to stir liquid in the tank body, so that the treatment efficiency is improved, and meanwhile, the corrosion effect of gas on parts is reduced;
according to the hollow cathode tube type electrocatalytic oxidation cathode device, the arranged elastic mechanism acts on the gas collecting plate upwards, the hollow tube cathode is installed and then elastically contacts with the gas collecting plate, stable contact is guaranteed, and the hollow tube cathode is opposite to the gas collecting hole.
According to the hollow cathode tube type electrocatalytic oxidation cathode device, when the sludge collection assembly is arranged, precipitates are discharged under the action of aeration in the hollow tube cathode and pass through the filter plate to reach the interior of the sludge hopper, and at the moment, the precipitates are not easy to return to the upper part from the sludge hopper due to the arrangement of the filter holes with the diameters sequentially reduced from top to bottom on the filter plate, so that the sludge collection effect is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1;
FIG. 2 is an enlarged sectional view of the aeration tube at A in FIG. 1;
FIG. 3 is a schematic view of a part of the structure in a plan view of embodiment 1;
FIG. 4 is a schematic view of a part of the structure at the filter plate of example 1;
fig. 5 is a schematic partial sectional view of the gas collection assembly of embodiment 1.
In the figure: 1. a water inlet pipe; 2. a sludge discharge pipe; 3. a mud bucket; 4. a hollow tube cathode; 5. an aeration pipe; 6. a tank body; 7. an air inlet pipe; 8. a direct current power supply; 9. an anode; 10. an aeration hole; 11. a water outlet pipe; 12. a card slot; 13. a filter plate; 14. filtering holes; 15. a limiting column; 16. a movable rod; 17. a spring; 18. a gas collecting plate; 19. mounting grooves; 20. and a gas collecting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Example 1:
as shown in fig. 1-5, the hollow cathode tube type electrocatalytic oxidation cathode device described in this embodiment includes a hollow tube cathode 4, the hollow tube cathode 4 is provided with a matched anode 9, the hollow tube cathode 4 and the anode 9 are provided with a dc power supply 8 for connection, a cell body 6 is disposed outside the hollow tube cathode 4 and the anode 9, the cell body 6 is provided with a water inlet tube 1 and a water outlet tube 11, when in operation, sewage is introduced from the water inlet tube 1, and through the electrocatalytic oxidation after the hollow tube cathode 4 and the anode 9 are connected electrically, a direct electrochemical reaction occurs on the electrodes or a strong oxidation active substance is generated on the surfaces of the electrodes to cause oxidation-reduction conversion of pollutants, hydroxyl radicals are generated to act on a part of metal ions in the sewage to cause flocculation to adsorb impurities in the sewage, and the treated sewage is discharged from the water outlet tube 11;
specifically, the top of the hollow tube cathode 4 is provided with an aeration component, the aeration component comprises an air inlet pipe 7 fixedly installed at the top of the hollow tube cathode 4, the air inlet pipe 7 is connected with an aeration pipe 5 inserted in the hollow tube cathode 4, the surface of the middle lower part of the aeration pipe 5 is provided with aeration holes 10, the direction is inclined downwards when the aeration holes 10 are arranged, the bottom of the hollow tube cathode is movably provided with a gas collecting component, the gas collecting component comprises a gas collecting plate 18 and hourglass-shaped gas collecting holes 20 formed in the gas collecting plate 18, the gas collecting component further comprises an elastic mechanism supporting the gas collecting plate 18 at two sides, the gas collecting plate 18 is provided with a mounting groove 19 matched with the hollow tube cathode 4, the bottom of the pool body 6 is provided with a mud collecting component corresponding to the bottom of the aeration pipe 5, in the arranged hollow tube cathode 4, gas is rapidly discharged from the aeration holes 10 due to the aeration effect of the aeration pipe 5 and simultaneously drives surrounding sewage to move, the aeration intensity is controlled to generate water mist, the contact action between the sewage and the hollow tube cathode 4 is increased, the sewage is brought out from the bottom of the hollow tube cathode 4 by gas, meanwhile, the surrounding water is replenished again, and the reaction treatment is continuously carried out, so that the reaction efficiency is increased, meanwhile, the precipitated impurities generated in the treatment process are sprayed out under the aeration action and finally fall into the sludge collecting component for treatment through the precipitation action in the tank body 6, the negative influence caused by the precipitated impurities attached to the hollow tube cathode 4 is reduced, and the service life of the hollow tube cathode 4 is prolonged; the gas collecting component is arranged at the bottom of the hollow tube cathode 4 through the mounting groove 19, the outlet hole at the bottom of the hollow tube cathode 4 and the gas collecting hole 20 on the gas collecting plate 18 are in hourglass-shaped design, namely, the two ends of the hole diameter are large and the middle is small, after aeration is carried out by the aeration tube 5, fine bubbles are sprayed out through the outlet hole at the bottom of the hollow tube cathode 4 and are guided through the gas collecting hole 20, and are collected when reaching the middle part of the gas collecting hole 20, so that fine bubbles are collected to form large bubbles, the large bubbles move upwards from the bottom of the tank body 6 to stir liquid in the tank body 6, so that the treatment efficiency is increased, meanwhile, the interaction between the fine bubbles and the outside of the hollow tube cathode 4 is reduced after the fine bubbles are treated into the large bubbles, and the corrosion effect of gas on parts is reduced; in the process of mounting the gas collecting assembly, the hollow tube cathode 4 is fitted and connected with the mounting groove 19 of the gas collecting plate 18 under the action of the elastic mechanism and clamped by the elastic mechanism after mounting, so that the gas collecting hole 20 and the bottom of the hollow tube cathode 4 are ensured to be contacted and sealed relatively.
According to the utility model, the sludge collection assembly comprises the funnel-shaped sludge bucket 3, the top of the sludge bucket 3 is provided with the filter plate 13, the filter plate 13 is provided with the funnel-shaped filter holes 14, namely the diameters of the filter holes 14 are sequentially reduced from top to bottom, the number of the sludge buckets 3 is two, and the bottom of the sludge bucket 3 is connected with the sludge discharge pipe 2, when the sludge collection assembly is used, the sediment is brought under the aeration action belt in the hollow tube cathode 4 and reaches the inside of the sludge bucket 3 through the filter plate 13, at the moment, the sediment is not easy to return to the upper part from the sludge bucket 3 again due to the arrangement of the filter holes 14 with the diameters sequentially reduced from top to bottom on the filter plate 13, so that the sludge collection effect is ensured.
In the utility model, the water inlet pipe 1 is arranged at the bottom of the tank body 6, the water outlet pipe 11 is arranged at the middle upper part of the tank body 6, and sewage is introduced from the bottom and is discharged from the upper water outlet pipe 11 after being treated from bottom to top, thereby increasing the treatment effect.
In the utility model, the top of the tank body 6 is provided with a clamping groove 12 for installing the hollow tube cathode 4 and the hollow tube anode 9, and the hollow tube cathode 4 and the hollow tube anode 9 are convenient to disassemble and assemble through the installation of the clamping groove 12, thereby facilitating the maintenance and inspection.
In the utility model, the elastic mechanism comprises a movable rod 16 movably inserted at two ends of the gas collecting plate 18 and limiting columns 15 arranged at the upper end and the lower end of the movable rod 16, and further comprises a spring 17 arranged between the bottom of the gas collecting plate 18 and the limiting columns 15 at the bottom, wherein the spring 17 is made of a material which does not participate in an electrocoagulation reaction, and when the device is used, the elastic mechanism acts on the gas collecting plate 18 upwards, and is in elastic contact with the gas collecting plate 18 after the hollow tube cathode 4 is arranged, so that the stable contact is ensured.
In the embodiment, sewage is introduced from the water inlet pipe 1, and subjected to electrocatalytic oxidation after being connected with electricity through the hollow pipe cathode 4 and the anode 9, direct electrochemical reaction is generated on the electrode or strong oxidation active substances are generated on the surface of the electrode to enable pollutants to be subjected to redox conversion, hydroxide radicals are generated to act on part of metal ions in the sewage to generate flocculation to adsorb impurities in the sewage, and the treated sewage is discharged from the water outlet pipe 11; sewage is introduced from the bottom, treated from bottom to top and then discharged from the upper water outlet pipe 2, so that the treatment effect is improved; in the inside of the hollow tube cathode 4, due to the aeration effect of the aeration pipe 5, gas is rapidly discharged from the aeration holes 10, and meanwhile, surrounding sewage is driven to move violently, the aeration intensity is controlled to generate water mist, the contact effect between the sewage and the hollow tube cathode 4 is increased, the sewage is taken out from the bottom of the hollow tube cathode 4 by the gas, meanwhile, the surrounding water is replenished again, and reaction treatment is continuously carried out, so that the reaction efficiency is increased, meanwhile, precipitated impurities generated in the treatment process are sprayed out under the aeration effect, and finally fall into the mud collection assembly for treatment through the precipitation effect in the inside of the tank body 6, so that the negative effects caused by the precipitated impurities attached to the hollow tube cathode 4 are reduced, and the service life of the hollow tube cathode 4 is prolonged; the gas collecting component is arranged at the bottom of the hollow tube cathode 4 through the mounting groove 19, the outlet hole at the bottom of the hollow tube cathode 4 and the gas collecting hole 20 on the gas collecting plate 18 are in hourglass-shaped design, namely, the two ends of the hole diameter are large and the middle is small, after aeration is carried out by the aeration tube 5, fine bubbles are sprayed out through the outlet hole at the bottom of the hollow tube cathode 4 and are guided through the gas collecting hole 20, and are collected when reaching the middle part of the gas collecting hole 20, so that fine bubbles are collected to form large bubbles, the large bubbles move upwards from the bottom of the tank body 6 to stir liquid in the tank body 6, so that the treatment efficiency is increased, meanwhile, the interaction between the fine bubbles and the outside of the hollow tube cathode 4 is reduced after the fine bubbles are treated into the large bubbles, and the corrosion effect of gas on parts is reduced; in the process of mounting the gas collecting assembly, under the action of the elastic mechanism, the hollow tube cathode 4 is fitted and connected with the mounting groove 19 of the gas collecting plate 18 after mounting and is clamped by the elastic mechanism, so that the gas collecting hole 20 and the bottom of the hollow tube cathode 4 are ensured to be contacted and sealed relatively; when the sludge collecting component is used, the sediment is carried by the aeration zone in the hollow tube cathode 4 and reaches the interior of the sludge hopper 3 through the filter plate 13, and at the moment, the sediment is not easy to return to the upper part from the sludge hopper 3 again due to the arrangement of the filter holes 14 with the diameters sequentially reduced from top to bottom on the filter plate 13, so that the sludge collecting effect is ensured; the elastic mechanism acts on the gas collecting plate 18 upwards, and the hollow tube cathode 4 is installed and then elastically contacted with the gas collecting plate 18 to ensure stable contact.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (7)
1. A hollow cathode tube type electrocatalytic oxidation cathode device comprises a hollow tube cathode (4), wherein a matched anode (9) is arranged on the hollow tube cathode (4), the hollow tube cathode (4) and the anode (9) are provided with a direct current power supply (8) to be connected, a pool body (6) is arranged outside the hollow tube cathode (4) and the anode (9), a water inlet tube (1) and a water outlet tube (11) are arranged on the pool body (6), the hollow tube cathode (4) is provided with an aeration component which comprises an air inlet tube (7) fixedly arranged at the top of the hollow tube cathode (4), the air inlet tube (7) is connected with an aeration tube (5) inserted into the hollow tube cathode (4), aeration holes (10) are formed in the surface of the middle lower part of the aeration tube (5), the aeration holes (10) are inclined downwards when being formed, and a gas collection component is movably arranged at the bottom of the hollow tube cathode (4), and the gas collection assembly comprises a gas collection plate (18) and a hourglass-shaped gas collection hole (20) formed in the gas collection plate (18), the gas collection assembly further comprises an elastic mechanism supporting the gas collection plate (18) at two sides, the gas collection plate (18) is provided with a mounting groove (19) matched with the hollow tube cathode (4), and a mud collection assembly is arranged at the bottom of the pool body (6) corresponding to the bottom of the aeration tube (5).
2. The electrocatalytic oxidation cathode assembly as set forth in claim 1, wherein said sludge collection assembly comprises a funnel-shaped hopper (3), and a filter plate (13) is provided on top of said hopper (3).
3. The electrocatalytic oxidation cathode assembly as set forth in claim 2, wherein said filter plates (13) are provided with funnel-shaped filter holes (14), i.e., the diameter of the filter holes (14) decreases from top to bottom.
4. The hollow cathode tube type electrocatalytic oxidation cathode device according to claim 3, wherein the number of the mud bucket (3) is two, and the bottom of the mud bucket (3) is connected with the mud discharging tube (2).
5. The hollow cathode tube type electrocatalytic oxidation cathode device as set forth in claim 1, wherein the water inlet tube (1) is installed at the bottom of the cell body (6), and the water outlet tube (11) is disposed at the middle upper portion of the cell body (6).
6. The hollow cathode tube type electrocatalytic oxidation cathode device according to claim 1, wherein the top of the cell body (6) is provided with a clamping groove (12) for mounting the hollow tube cathode (4) and the anode (9).
7. The hollow cathode tube type electrocatalytic oxidation cathode device as claimed in claim 1, wherein the elastic mechanism comprises a movable rod (16) movably inserted at both ends of the gas collecting plate (18) and limiting columns (15) installed at upper and lower ends of the movable rod (16), and further comprises a spring (17) installed between the bottom of the gas collecting plate (18) and the limiting columns (15) at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122560224.6U CN216303350U (en) | 2021-10-22 | 2021-10-22 | Hollow cathode tube type electrocatalytic oxidation cathode device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122560224.6U CN216303350U (en) | 2021-10-22 | 2021-10-22 | Hollow cathode tube type electrocatalytic oxidation cathode device |
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| Publication Number | Publication Date |
|---|---|
| CN216303350U true CN216303350U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122560224.6U Active CN216303350U (en) | 2021-10-22 | 2021-10-22 | Hollow cathode tube type electrocatalytic oxidation cathode device |
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| CN (1) | CN216303350U (en) |
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2021
- 2021-10-22 CN CN202122560224.6U patent/CN216303350U/en active Active
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