CN2841683Y - Electrolytic oxidation column - Google Patents
Electrolytic oxidation column Download PDFInfo
- Publication number
- CN2841683Y CN2841683Y CN 200520127449 CN200520127449U CN2841683Y CN 2841683 Y CN2841683 Y CN 2841683Y CN 200520127449 CN200520127449 CN 200520127449 CN 200520127449 U CN200520127449 U CN 200520127449U CN 2841683 Y CN2841683 Y CN 2841683Y
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- CN
- China
- Prior art keywords
- anode
- plate
- electrolytic oxidation
- column
- cathode
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- 230000003647 oxidation Effects 0.000 title claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 abstract description 17
- 238000005868 electrolysis reaction Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000012857 radioactive material Substances 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002915 spent fuel radioactive waste Substances 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- UUWCBFKLGFQDME-UHFFFAOYSA-N platinum titanium Chemical compound [Ti].[Pt] UUWCBFKLGFQDME-UHFFFAOYSA-N 0.000 description 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses an electrolytic oxidation column used for the post-treatment of radioactive materials. The electrolytic oxidation column comprises an outer shell column body, a cathode and an anode which are arranged in the outer shell column body, an upper seal head and a lower seal head. Cathode plates and anode plates are arranged in the outer shell column body, and are in parallel and alternate cascade stage arrangement. The cathode plates and the anode plates are in net plate shapes, are fixed on the outer shell column body and are simultaneously insulative with the outer shell column body. A cathode column and an anode column which are connected with an external connection DC power supply separately pass through electrode connection holes which are arranged on the cathode plates and the anode plates, and are vertically connected with the cathode plates and the anode plates. The mutual insulation is existed between the cathode column and the anode plates and between the anode column and the cathode plates. The upper seal head of the electrolytic oxidation column is provided with an overflow port, the lower seal head is provided with a flow distribution plate and flow guiding holes are evenly arranged on the flow distribution plate. The utility model has the advantages of uniform and sufficient electrolysis and lower energy consumption, and the utility model is practical for the effect of the value regulation for the oxidation of Pu in the process of the post-treatment of spent fuels.
Description
Technical field
The utility model belongs to the radio active material after-treatment device, specifically discloses the electrolytic oxidation post that a kind of spent fuel aftertreatment is used.
Background technology
In the spent fuel last handling process, utilize Pu (III) plutonium can be separated with other element, so need in the process Pu is readjusted prices repeatedly with the difference of Pu (IV) on extraction ability.Representative method had NaNO in the oxidation price modification process of Pu in the past
2Method, N
2O
4Method, electrolytic oxidation.In these methods, NaNO
2Method will be introduced salt in system, increase the liquid waste disposal amount, and this method is replaced by other salt-free methods at present.N
2O
4Though method is not introduced salt, can in exhaust emissions, produce a large amount of radioaerosols, bring very big burden for the exhaust gas emission purification system, and this method economy is relatively poor.Adopt electrolytic oxidation technology instead of chemical reagent that the advantage of following several respects is arranged: the one, simple and compact device is easy to safety operation; The 2nd, do not introduce external salt basically, can reduce the refuse volume; The 3rd, economical, its processing costs is about N
2O
41/100 of method.So electrolytic oxidation is subjected to the attention of various countries day by day.
The U.S. and preceding West Germany are from the sixties application of electrochemical techniques the spent fuel last handling process that begin one's study, and two countries scientist has developed electrolytic oxidation post and electrolytic oxidation groove respectively, are used for the electrolytic oxidation price modification of Pu (III).The basic structure of electrolytic oxidation post and electrolytic oxidation groove is to adopt groove (post) housing to make negative electrode, and arranged type plate or ring are made anode, and the Flow of Goods and Materials direction is parallel with the arrangement of electrode.There are following problem in the electrolytic oxidation post and the electrolytic oxidation groove of this structure:
(1) the anodic reaction distribution of current is inhomogeneous.Because adopt groove (post) housing to make negative electrode, arranged type plate or ring are made anode, its electric force lines distribution homogeneity is very poor.With the electrolytic oxidation groove is example, and to constant-current electrolysis, though be continuous current to solution integral body, concerning the solution part, apart from anodes centre distance place far away more, its current density is more little.
(2) in the electrolytic oxidation groove of this structure, the reaction current major part concentrates on anode and the near part of cathode distance, and side reaction takes place the electrolysis under high current density of this part solution easily; And little owing to reaction current apart from cathode distance solution far away, reaction does not exclusively even react.In fluid, produce the concentration gradient of the moving cross-sectional distribution of longshore current thus.If stir insufficiently, or the fluid flow distance falls short of, and causes whole solution reaction incomplete easily, and this must cause current efficiency to reduce, and energy consumption increases.
(3) configuration of electrodes is unreasonable.In the electrooxidation equipment of U.S., moral, the Flow of Goods and Materials direction is parallel with electrode array, make between material and electrode and can not form cross motion, and the electrode pair material does not have barrier effect, cause the contact area of short, material of material residence time in the electrolysis post and electrode little, probability of collision is low, makes electrolysis very insufficient.
Summary of the invention
The purpose of this utility model is to provide a kind of electrolysis evenly, fully, and energy consumption is lower, and the electrolytic oxidation post that is useful for the spent fuel aftertreatment that can be easy to regulate according to the needs of processing power.
The technical solution of the utility model is: a kind of electrolytic oxidation post comprises the shell cylinder, be located at intravital negative electrode of shell post and anode, upper cover and lower cover, it is provided with negative plate and positive plate that parallel alternately tandem is arranged in described shell cylinder, negative plate and positive plate are the web plate shape and all are fixed on the shell cylinder and insulate with the shell cylinder simultaneously, the cathode column that links to each other with external direct current power supply and anode posts are passed the electrode connecting hole of offering on negative plate and the positive plate respectively and are connected with negative plate and positive plate are vertical, cathode column with between the positive plate and anode posts with insulation mutually between the negative plate.
Above-described electrolytic oxidation post, it is provided with overflow port at upper cover.
Above-described electrolytic oxidation post, it is provided with spreader plate at lower cover, has pod apertures on the spreader plate, and pod apertures is evenly distributed on the spreader plate.
The layout structure that the utility model adopted, make electric force lines distribution even, liquid flow direction is vertical with electrode surface, dynamic logistics could flow out by behind the reaction intervals at different levels successively, meet the hydromeehanics requirement of chemical unit equipment, can reach electrolysis evenly, fully, and the lower effect of energy consumption, be useful for the oxidation price modification of Pu in the spent fuel last handling process.
Description of drawings
Fig. 1 is the structural representation of electrolytic oxidation post.
Among the figure: 1. cathode column; 2. anode posts; 3. upper cover; 4. overflow port; 5. positive plate; 6. shell cylinder; 7. spreader plate; 8. pod apertures; 9. lower cover; 10. feed-pipe; 11. negative plate.
Embodiment
Below in conjunction with accompanying drawing the utility model is described specifically:
As shown in Figure 1, its inside at cylindric stainless steel casing cylinder 6 of electrolytic oxidation post described in the utility model is provided with negative plate 11 and the positive plate 5 that parallel alternately tandem is arranged, and negative plate 11 is vertical with the Flow of Goods and Materials direction with positive plate 5 arrangement modes.Negative plate 11 is a titanium metal, and positive plate 5 is a titanium platinum plating material, and negative plate 11 and positive plate 5 are the web plate shape, thereby have increased the electrode reaction area, help passing through of reaction soln and generated reactive gas.Negative plate 11 and positive plate 5 all are fixed on the shell cylinder 6 and with shell cylinder 6 and insulate.On negative plate 11 and positive plate 5, all have the electrode connecting hole, the cathode column 1 that links to each other with external direct current power supply passes the electrode connecting hole respectively with negative plate 11 and 5 vertical connections of positive plate with anode posts 2, cathode column 1 with between the positive plate 5 and anode posts 2 with insulating mutually between the negative plate 11.Shell cylinder 6 links to each other with upper cover 3, lower cover 9 respectively by upper and lower flange.In order to prevent that material from because of the mist that reacts violent generation sprays material taking place and flowing out from gas outlet pipe, be provided with overflow port 4 at upper cover 3, upper cover 3 also is provided with streams outlet, prevention liquid flooding overflow port, inlet mouth, venting port, measurement thief hole, temperature-measuring port etc. simultaneously.For feed stream is flowed evenly, be provided with spreader plate 7 at lower cover 9, have pod apertures 8 on the spreader plate 7, pod apertures 8 is evenly distributed on the spreader plate 7.Feed-pipe 10 passes lower cover 9 and is connected with fresh feed pump.
The pod apertures 8 of passing spreader plate 7 after material enters lower cover 9 by feed-pipe 10 successively by web plate shape negative plate 11 and positive plate 5, fully contacts the back with battery lead plate and flows out the electrolytic oxidation post.The feature geometries coefficient Ω value (S/V) of this kind electrolytic oxidation post ratio of reaction soln volume (electrode area with) is very high, can reach 1.2-1.5, and processing power can satisfy the needs of spent fuel aftertreatment.
Claims (4)
1. electrolytic oxidation post, comprise shell cylinder (6), be located at negative electrode and anode in the shell cylinder (6), upper cover (3) and lower cover (9), it is characterized in that: in described shell cylinder (6), be provided with negative plate (11) and positive plate (5) that parallel alternately tandem is arranged, negative plate (11) and positive plate (5) are the web plate shape and all are fixed on shell cylinder (6) to be gone up and to insulate with shell cylinder (6) simultaneously, cathode column (1) that links to each other with external direct current power supply and anode posts (2) are passed the same negative plate of offering on negative plate (11) and the positive plate (5) of electrode connecting hole (11) and vertical connection of positive plate (5) respectively, insulate mutually between the same positive plate of cathode column (1) (5) and between the same negative plate of anode posts (2) (11).
2. electrolytic oxidation post according to claim 1 is characterized in that: be provided with overflow port (4) at upper cover (3).
3. electrolytic oxidation post according to claim 1 and 2 is characterized in that: be provided with spreader plate (7) at lower cover (9), have pod apertures (8) on the spreader plate (7).
4. electrolytic oxidation post according to claim 3 is characterized in that: pod apertures (8) is evenly distributed on the spreader plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127449 CN2841683Y (en) | 2005-10-14 | 2005-10-14 | Electrolytic oxidation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127449 CN2841683Y (en) | 2005-10-14 | 2005-10-14 | Electrolytic oxidation column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2841683Y true CN2841683Y (en) | 2006-11-29 |
Family
ID=37445573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520127449 Expired - Fee Related CN2841683Y (en) | 2005-10-14 | 2005-10-14 | Electrolytic oxidation column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2841683Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451683A (en) * | 2012-05-28 | 2013-12-18 | 中国原子能科学研究院 | On-line electrolytic mixing clarifying tank |
| CN109264906A (en) * | 2018-10-26 | 2019-01-25 | 江苏全给净化科技有限公司 | A kind of combination unit for Wastewater from Organic Chemistry Laboratory processing |
| WO2019050387A1 (en) * | 2017-09-07 | 2019-03-14 | Diaz Barrenechea Oskar Humberto | Device for improving the efficiency of the fuel used in self-propelled vehicles |
| CN109502840A (en) * | 2018-11-19 | 2019-03-22 | 江苏全给净化科技有限公司 | A kind of pretreatment unit of industrial wastewater |
-
2005
- 2005-10-14 CN CN 200520127449 patent/CN2841683Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451683A (en) * | 2012-05-28 | 2013-12-18 | 中国原子能科学研究院 | On-line electrolytic mixing clarifying tank |
| CN103451683B (en) * | 2012-05-28 | 2016-03-30 | 中国原子能科学研究院 | A kind of On-line electrolytic dissolution mixer-settler |
| WO2019050387A1 (en) * | 2017-09-07 | 2019-03-14 | Diaz Barrenechea Oskar Humberto | Device for improving the efficiency of the fuel used in self-propelled vehicles |
| CN109264906A (en) * | 2018-10-26 | 2019-01-25 | 江苏全给净化科技有限公司 | A kind of combination unit for Wastewater from Organic Chemistry Laboratory processing |
| CN109502840A (en) * | 2018-11-19 | 2019-03-22 | 江苏全给净化科技有限公司 | A kind of pretreatment unit of industrial wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20121014 |