CN212450764U - Titanium anode assembly for oilfield sewage treatment - Google Patents
Titanium anode assembly for oilfield sewage treatment Download PDFInfo
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- CN212450764U CN212450764U CN202020788118.6U CN202020788118U CN212450764U CN 212450764 U CN212450764 U CN 212450764U CN 202020788118 U CN202020788118 U CN 202020788118U CN 212450764 U CN212450764 U CN 212450764U
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Abstract
The utility model discloses an oil field sewage treatment titanium anode assembly comprises a plurality of titanium electrode body interval combination, and every shown titanium electrode body is formed by the titanium electrode base member board of symmetrical arrangement is fixed, is equipped with strutting arrangement between this symmetrical arrangement's titanium electrode base member board the coating has RuO on the titanium electrode base member board in proper order4Coating, IrO2Coating, SnO2Coating and Sb2O3And (4) coating. The electrolysis plate body adopts TiO2Material with RuO coated on the surface4Coating, IrO2Coating, SnO2Coating and Sb2O3Coating, integrally formed titanium anode assemblies not only having high segregationThe overpotential of oxygen can basically and completely degrade COD in the sewage, and has the advantages of low power consumption, high electrolysis speed, high corrosion resistance, small pollution and long service life.
Description
Technical Field
The utility model relates to an electrolysis sewage treatment technical field especially relates to an oil field sewage treatment titanium anode assembly.
Background
Oil-containing wastewater is generated in domestic industrial oil extraction, oil refining and oil storage and transportation extreme petrochemical industries, and the wastewater of oil tanker ballast water, ship washing water, cooling and lubricating liquid in mechanical industry, rolling molten steel, food industry and the like contains a large amount of oil. The existing wastewater treatment adopts an electro-flotation method, wastewater is electrolyzed under the action of a direct current electric field, oxygen is generated at an anode, hydrogen is generated at a cathode, bubbles of the hydrogen and the oxygen are used as carriers, suspended matters generated by coagulation reaction rise to the water surface along with the bubbles to form scum, and the purposes of solid-liquid separation and wastewater purification are achieved. The electrode used in domestic electrolysis is a steel plate, graphite or lead plate electrode. The anode plates used in the electrolytic use process have the defects of large power consumption, unsatisfactory speed, low corrosion resistance, secondary pollution caused by the fact that the electrode plate materials are mixed into electrolyte, high power consumption, high pollution, short service life and the like in different degrees, lead and graphite anodes cannot completely degrade COD in sewage, and the current technological requirements cannot be met, so that the development of novel electrode plates needs to be improved.
Disclosure of Invention
To the problem that above-mentioned exists, the utility model aims at providing an oil field sewage treatment titanium anode assembly comprises a plurality of titanium electrode body interval combination, and every shown titanium electrode body is formed by the titanium electrode base member board of symmetrical arrangement is fixed, has Ru, Ir, Sn and Sb element active coating in the coating in proper order on titanium electrode base member board. Reduce the power consumption of electrolysis, improve the electrolysis speed and the corrosion resistance, and basically can completely degrade COD in the sewage.
In order to achieve the above object, the utility model adopts the following technical scheme: the titanium anode assembly for oilfield sewage treatment is characterized in that: the titanium electrode comprises a plurality of titanium electrode bodies which are combined at intervals, wherein each titanium electrode body is formed by fixing titanium electrode base plates which are symmetrically arranged, a supporting device is arranged between the titanium electrode base plates which are symmetrically arranged, and Ru, Ir, Sn and Sb element active coatings are sequentially coated on the titanium electrode base plates.
Preferably, the titanium electrode substrate plate is TiO2The Ru, Ir, Sn and Sb element active coating sequentially comprises the following components: RuO4Coating, IrO2Coating, SnO2Coating and Sb2O3And (4) coating.
Preferably, the RuO4Coating, IrO2Coating, SnO2Coating and Sb2O3The thickness of the coating is 4-6 μm.
Preferably, the supporting device comprises a connecting plate arranged along the edge of the titanium electrode base plate and a supporting bolt arranged symmetrically, the supporting bolt is supported by the center of the titanium electrode base plate and is sleeved with a supporting sleeve, two ends of the supporting bolt are abutted to the titanium electrode base plates on two sides, a connecting bolt is arranged on the overlapping portion of the titanium electrode base plate and the connecting plate in a penetrating mode, and the connecting plate, the supporting bolt, the supporting sleeve and the connecting bolt are made of polytetrafluoroethylene materials.
Preferably, each connecting plate on the same side is provided with a connecting hole for forming the titanium anode assembly by the plurality of titanium electrode bodies.
Preferably, the top end of the connecting plate extends to form a hoisting part, and the center of the connecting plate is provided with a hoisting hole.
The utility model has the advantages that: the base plate of the electrolytic plate adopts T iO2The plate material is coated with RuO on the surface4Coating, IrO2Coating, SnO2Coating and Sb2O3The titanium anode component integrally formed by the coating not only has higher oxygen evolution overpotential and can basically and completely degrade COD in sewage, but also has the advantages of low power consumption, high electrolysis speed, high corrosion resistance, small pollution and long service life.
Drawings
Fig. 1 is an overall structure diagram of the titanium anode assembly of the present invention.
Fig. 2 is a side view of the titanium electrode body of the present invention.
Fig. 3 is a schematic view of the titanium electrode base plate supported by the supporting bolt of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Referring to the attached drawings 1-3, the titanium anode assembly for oilfield sewage treatment is formed by combining a plurality of titanium electrode bodies 1 at intervals, each titanium electrode body 1 is formed by fixing titanium electrode base plates 1a which are symmetrically arranged, the function of the titanium electrode body is that the whole motor assembly framework and the electric conduction function are achieved, a supporting device is arranged between the titanium electrode base plates 1a which are symmetrically arranged, and Ru, Ir, Sn and Sb element active coatings are sequentially coated on the titanium electrode base plates 1 a. The use of the titanium electrode base plate 1a for the electrolytic plate has the following advantages:
1. the dimension of the titanium electrode is stable, so that the electrolytic operation can be carried out under the condition of stable cell voltage;
2. the titanium electrode has long service life, and the titanium anode has light weight, so that the labor intensity can be reduced;
3. the shape is easy to manufacture, and high precision can be realized;
4. the base metal can be used repeatedly.
The coating of the active coating containing Ru, Ir, Sn and Sb elements on the titanium electrode substrate plate 1a has the following advantages:
1. the working voltage is low, the electrolytic consumption is low, and the electric energy consumption can be saved;
2. the problem of lead anode dissolution is solved, the pollution to electrolyte and cathode products is avoided, and secondary pollution is avoided;
3. the current density can be improved, the diaphragm-free electrolytic cell is adopted, the current density is 1200A/square meter, and the energy consumption is saved; after the source water with the COD of 1597mg/L is electrolyzed for 4 times circularly in the electrolytic bath, the COD value is reduced to be below 100 mg;
4. strong corrosion resistance and works in oil-containing electrolytic medium with special requirements.
Further, in order to optimize the defects of high power consumption, high pollution, short service life and the like of the titanium electrode base plate 1a, the titanium electrode base plate 1a is TiO2The Ru, Ir, Sn and Sb element active coating sequentially comprises the following components: RuO4Coating, IrO2Coating, SnO2Coating and Sb2O3And (4) coating. During electrolysis, two main competing reactions of organic matter oxidation degradation and water decomposition oxygen evolution are carried out on the metal anode, so that the electrode is required to have higher oxygen evolution overpotential and a composite metal oxide coating electrode capable of being loaded on a titanium substrate. Wherein SnO2And TiO2、Ti/SnSbOXHas high oxygen evolution potential, excellent electrocatalytic performance and good conductivityAnd (4) electrical property. The coating process (thermal oxidation temperature and time control) is changed according to the characteristics of each metal, and SnCl is added into the coating liquid containing Ru, Ti and Ir elements4、SbCl3At lower temperature, Sn and Sb are not completely converted, which results in corrosion resistance, influences activity and service life, and at higher temperature, Sb is not completely converted2O3Can volatilize, affect coating components and oxidize into Sb2O5Thereby greatly reducing the conductive performance of the coating. In order to reduce the anodic potential of the oxidized coating and extend the working life, the above coating was investigated for improving the performance by adding platinum group oxide (RuO) to the Sn, Sb coating4、IrO2) Besides the electrode life, the electrode also has the function of degrading organic matters in the wastewater. After electrolysis for 2 hours, the COD removal rate can reach 98%, and the COD of the effluent is lower than 40mg/L, thereby reaching the discharge standard.
Therefore, the titanium electrode base plate 1a is coated with RuO in sequence4Coating, IrO2Coating, SnO2Coating and Sb2O3The coating not only has higher oxygen evolution overpotential, can basically and completely degrade COD in sewage, but also has the advantages of low power consumption, small pollution and long service life.
Further to the coating having an optimal coating thickness, the RuO4Coating, IrO2Coating, SnO2Coating and Sb2O3The thickness of the coating is preferably 4 μm to 6 μm. The coating with the thickness range can effectively increase the current density, has good corrosion resistance, improves the electrocatalysis effect, and prolongs the service life of the anode titanium electrode substrate plate 1 a.
Further in order to facilitate the use of the titanium electrode base plate 1a, the supporting device comprises a connecting plate 2 arranged along the edge of the titanium electrode base plate 1a and a supporting bolt 3 used for symmetrically supporting the center of the titanium electrode base plate 1a, a supporting sleeve 31 is sleeved on the supporting bolt 3, two ends of the supporting bolt are abutted to the titanium electrode base plates 1a on two sides (as shown in fig. 3), a connecting bolt 4 is arranged at the overlapping part of the titanium electrode base plate 1a and the connecting plate 2 in a penetrating mode, and the connecting plate 2, the supporting bolt 3, the supporting sleeve 31 and the connecting bolt 4 are all made of polytetrafluoroethylene materials.
Further in order to facilitate the titanium electrode bodies 1 to form the whole titanium anode assembly, the side wall of each connecting plate 2 at the same side is provided with a connecting hole, preferably, a strip-shaped plate 5 made of polytetrafluoroethylene is used, and a plurality of titanium electrode bodies 1 are formed into the whole titanium anode assembly by using connecting bolts 4.
Further in order to facilitate the integral hoisting of the titanium anode assembly, a hoisting part 21 extends from the top end of the connecting plate 2, and a hoisting hole 201 is formed in the center of the connecting plate.
The principle of the utility model is that: the electrolytic plate body adopts T iO2Material with RuO coated on the surface4Coating, IrO2Coating, SnO2Coating and Sb2O3The titanium anode component integrally formed by the coating not only has higher oxygen evolution overpotential and can basically and completely degrade COD in sewage, but also has the advantages of low power consumption, small pollution and long service life.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The titanium anode assembly for oilfield sewage treatment is characterized in that: the titanium electrode comprises a plurality of titanium electrode bodies (1) which are combined at intervals, wherein each titanium electrode body (1) is formed by fixing titanium electrode base plates (1a) which are symmetrically arranged, a supporting device is arranged between the titanium electrode base plates (1a) which are symmetrically arranged, and Ru, Ir, Sn and Sb element active coatings are sequentially coated on the titanium electrode base plates (1 a).
2. According to claim 1The titanium anode assembly for oilfield sewage treatment is characterized in that: the titanium electrode substrate plate (1a) is TiO2The Ru, Ir, Sn and Sb element active coating sequentially comprises the following components: RuO4Coating, IrO2Coating, SnO2Coating and Sb2O3And (4) coating.
3. The oilfield wastewater treatment titanium anode assembly of claim 2, wherein: the RuO4Coating, IrO2Coating, SnO2Coating and Sb2O3The thickness of the coating is 4-6 μm.
4. The oilfield wastewater treatment titanium anode assembly of claim 3, wherein: the supporting device comprises a connecting plate (2) arranged along the edge of a titanium electrode base plate (1a) and supporting bolts (3) arranged symmetrically, wherein the supporting bolts (3) are supported by the center of the titanium electrode base plate (1a), supporting sleeves (31) are sleeved on the supporting bolts (3), the two ends of the supporting bolts all abut against the titanium electrode base plate (1a) on the two sides, connecting bolts (4) are arranged on the overlapping portions of the titanium electrode base plate (1a) and the connecting plate (2) in a penetrating mode, and the connecting plate (2), the supporting bolts (3), the supporting sleeves (31) and the connecting bolts (4) are all made of polytetrafluoroethylene materials.
5. The oilfield wastewater treatment titanium anode assembly of claim 4, wherein: and each connecting plate (2) at the same side is provided with a connecting hole for forming the titanium anode assembly by a plurality of titanium electrode bodies (1).
6. The oilfield wastewater treatment titanium anode assembly of claim 5, wherein: a hoisting part (21) extends from the top end of the connecting plate (2), and a hoisting hole (201) is formed in the center of the connecting plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020788118.6U CN212450764U (en) | 2020-05-13 | 2020-05-13 | Titanium anode assembly for oilfield sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020788118.6U CN212450764U (en) | 2020-05-13 | 2020-05-13 | Titanium anode assembly for oilfield sewage treatment |
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| CN212450764U true CN212450764U (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368803A (en) * | 2021-12-21 | 2022-04-19 | 西安泰金工业电化学技术有限公司 | Titanium anode with good corrosion resistance for water treatment |
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- 2020-05-13 CN CN202020788118.6U patent/CN212450764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368803A (en) * | 2021-12-21 | 2022-04-19 | 西安泰金工业电化学技术有限公司 | Titanium anode with good corrosion resistance for water treatment |
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