CN113802150A - Water-cooled anode current conducting plate device of large-scale rare earth molten salt electrolytic cell - Google Patents
Water-cooled anode current conducting plate device of large-scale rare earth molten salt electrolytic cell Download PDFInfo
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- CN113802150A CN113802150A CN202110223965.7A CN202110223965A CN113802150A CN 113802150 A CN113802150 A CN 113802150A CN 202110223965 A CN202110223965 A CN 202110223965A CN 113802150 A CN113802150 A CN 113802150A
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- conducting plate
- water
- rare earth
- anode
- anode current
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 26
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 25
- 150000003839 salts Chemical class 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract 2
- 238000001816 cooling Methods 0.000 claims description 8
- 238000005868 electrolysis reaction Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 22
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 rare earth compound Chemical class 0.000 description 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
- C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to a water-cooled anode current-conducting plate device of a large-scale rare earth molten salt electrolytic cell, which is characterized in that: the anode current-conducting plate of the large-scale rare earth molten salt electrolytic cell is cooled by circulating water, and the problem of thermal deformation of the anode current-conducting plate is solved by designing a water inlet and outlet mode, a sealing mode and a reinforcing mode in the anode current-conducting plate, so that the service life of the anode current-conducting plate is prolonged; the invention can ensure that the anode conducting plate of the large-scale rare earth electrolytic cell does not deform, resists oxidation, has long service life and ensures that circulating cooling water does not leak; is suitable for industrial application of large rare earth electrolytic cells.
Description
Technical Field
The invention relates to the technical field of rare earth metallurgy, in particular to a control technology for protecting an anode conducting plate of a large rare earth molten salt electrolytic cell, preventing the anode conducting plate from deforming at high temperature and resisting oxidation.
Background
The molten salt electrolysis process is the main process for producing light rare earth metal, and is mainly characterized by that at high temperature the molten rare earth compound is passed through D.C. to make it undergo the process of electrolytic reduction to prepare rare earth metal. In 1984, Baotou rare earth research institute firstly solved the problems of electrolytic cell materials, cell type structures and the like, and developed a fluoride system 3000A metal neodymium industrial electrolytic cell and a production technology. The Baotou rare earth research institute in 2000 completed the development of a ten thousand ampere electrolytic cell, and then the development of technological equipment for electrolyzing metal neodymium by a 25kA villiaumite system was carried out, and the industrial construction of the ten thousand ampere electrolytic cell was completed in 2002. With the continuous progress of the rare earth molten salt electrolysis industrialization technology, a plurality of technologies have been developed to a high degree, but the problem of deformation of the anode conducting plate at the upper part of the large rare earth electrolytic cell is not solved, because the anode conducting plate has larger size and the temperature fluctuates at about 200-500 ℃, the anode conducting plate is easy to deform under the action of thermal stress, the anode conducting plate rises, various process parameters of the electrolytic cell change, the electrolytic cell cannot be normally produced, the production and maintenance are required, and the operation cost of the electrolytic cell is increased.
Disclosure of Invention
The invention solves the technical problem of providing the water-cooled anode conducting plate device of the large-scale rare earth molten salt electrolytic tank, which can ensure that an anode plate of the large-scale rare earth electrolytic tank is not deformed and the anode conducting plate does not rise and is suitable for industrial application of the large-scale rare earth electrolytic tank.
The technical scheme is as follows:
a water-cooled anode current-conducting plate device of a large-scale rare earth molten salt electrolytic cell comprises a water tank, a heat dissipation tower, a water pump and a water-cooled anode current-conducting plate; the cooling water in the water tank is circularly cooled in the anode conductive plate under certain pressure through the water pump, and the temperature of the circulating water in the water tank is reduced through the heat-radiating tower.
Further: the anode current conducting plate is formed by sealing and welding two steel plates, a current guiding plate between the two steel plates, a supporting plate and baffle plates around.
Further: the water circulation is guided by the flow guiding clapboard and flows from the high-temperature area to the low-temperature area of the conductive plate, so that the temperature of the anode conductive plate is reduced.
Further: the pressure of cooling circulating water in the anode conducting plate is ensured by connecting a water pump.
Further: and starting the cooling tower to reduce the temperature of the circulating water.
Compared with the prior art, the invention has the technical effects that:
1. the anode current-conducting plate of the large-scale rare earth molten salt electrolytic cell can be ensured not to deform and not to rise, the anode is well contacted with the anode current-conducting plate, the process parameters of the electrolytic cell are ensured to be stable, and the production is stable and smooth.
2. The temperature of the anode conducting plate is reduced to about 30 ℃, the resistance of the anode conducting plate is reduced, the cell voltage is reduced, and the electric energy is saved; and simultaneously, the operation environment of stokehold workers is improved.
3. The temperature of the furnace mouth is reduced, so that volatile is condensed at the furnace mouth, the graphite lining at the upper part of the electrolytic cell is protected, the oxidation consumption of the cell body is prevented, and the service life of the electrolytic cell is prolonged.
4. When the electrolytic cell is newly opened, the furnace mouth of the electrolytic cell needs to be expanded in time so as to protect the furnace body and improve the height of molten salt, so that the electrolytic cell can timely reach a stable operation state, and the furnace body can be guaranteed to normally and stably operate as soon as possible.
5. The temperature of the upper part of the anode is reduced, the oxidation speed of the upper part of the anode is reduced, and the unit consumption of the graphite anode is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a water-cooled anode conductive plate device of a large rare earth molten salt electrolytic cell.
The reference numerals are explained below:
the electrolytic bath comprises an electrolytic bath body 1, a furnace cover plate 2, a water inlet 3, a water return pipe 4, a circulating water pump 5, a water tank 6 and a cooling tower 7.
Detailed Description
A water-cooled anode current-conducting plate device of a large rare earth molten salt electrolytic cell comprises a water tank, a heat dissipation tower, a water pump and a water-cooled anode current-conducting plate.
The water pump is started, so that cooling water in the water tank enters the water inlet of the anode current-conducting plate through the pipeline under certain pressure, under the guide of the internal current-conducting plate of the anode current-conducting plate, the cooling water flows from the high-temperature area to the low-temperature area of the anode current-conducting plate, so as to reduce the temperature gradient of the anode current-conducting plate, prevent the anode current-conducting plate from generating internal stress deformation, flow into the water tank from the water outlet of the anode current-conducting plate, when the temperature of the water tank internal circulation water is higher than 30 ℃, the heat dissipation tower is automatically started, and the temperature of the water tank internal circulation water is reduced.
Claims (4)
1. The utility model provides a large-scale tombarthite fused salt electrolysis trough water-cooling anode current conducting plate device which characterized in that: the anode current-conducting plate of the large-scale rare earth molten salt electrolytic cell is cooled by circulating water, and a water inlet and outlet mode, a sealing mode and a reinforcing mode in the anode current-conducting plate are designed.
2. The large-scale rare earth molten salt electrolysis cell water-cooling anode conducting plate device of claim 1, which is characterized in that: and water cooling the anode conducting plate.
3. The large-scale rare earth molten salt electrolysis cell water-cooling anode conducting plate device of claim 2, wherein: the water circulation is guided by the flow guiding clapboard and flows from the high-temperature area to the low-temperature area of the conductive plate, so that the temperature of the anode conductive plate is reduced.
4. The large-scale rare earth molten salt electrolysis cell water-cooling anode conducting plate device of claim 1, which is characterized in that: the anode current conducting plate is formed by sealing and welding two steel plates, a current guiding plate between the two steel plates, a supporting plate and baffle plates around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223965.7A CN113802150A (en) | 2021-03-01 | 2021-03-01 | Water-cooled anode current conducting plate device of large-scale rare earth molten salt electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223965.7A CN113802150A (en) | 2021-03-01 | 2021-03-01 | Water-cooled anode current conducting plate device of large-scale rare earth molten salt electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113802150A true CN113802150A (en) | 2021-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110223965.7A Pending CN113802150A (en) | 2021-03-01 | 2021-03-01 | Water-cooled anode current conducting plate device of large-scale rare earth molten salt electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113802150A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645385A (en) * | 2008-08-08 | 2010-02-10 | 乐金电子(天津)电器有限公司 | Water cooling structure of microwave oven magnetron |
| CN201648461U (en) * | 2010-03-09 | 2010-11-24 | 杭州萧山江盛铸锻有限公司 | Circulating water temperature controlling system |
| WO2012075955A1 (en) * | 2010-12-09 | 2012-06-14 | 中国葛洲坝集团股份有限公司 | Method for arranging cooling water pipes in large volume concrete |
| CN202465910U (en) * | 2012-03-14 | 2012-10-03 | 江西南方稀土高技术股份有限公司 | Anode electric conduction frame for 5 KA rare earth fused salt bath |
| CN203976935U (en) * | 2014-05-14 | 2014-12-03 | 遵宝钛业有限公司 | A kind of refrigerating unit of closing down magnesium electrolysis bath graphite anode head |
| CN104811132A (en) * | 2015-03-10 | 2015-07-29 | 上海理工大学 | Solar power generation circulating cooling system and control method thereof |
| CN105441987A (en) * | 2015-12-21 | 2016-03-30 | 江西稀有金属钨业控股集团有限公司 | Rare earth fused-salt electrolysis cell for producing rare earth metals and alloys by using liquid cathode |
| CN208308969U (en) * | 2018-06-26 | 2019-01-01 | 包头市中鑫安泰磁业有限公司 | Stove cover plate, re metal electrolyzing slot and heat-exchanger rig |
| WO2019128826A1 (en) * | 2017-12-29 | 2019-07-04 | 中南大学 | Rare earth metal molten salt electrolytic cell |
-
2021
- 2021-03-01 CN CN202110223965.7A patent/CN113802150A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645385A (en) * | 2008-08-08 | 2010-02-10 | 乐金电子(天津)电器有限公司 | Water cooling structure of microwave oven magnetron |
| CN201648461U (en) * | 2010-03-09 | 2010-11-24 | 杭州萧山江盛铸锻有限公司 | Circulating water temperature controlling system |
| WO2012075955A1 (en) * | 2010-12-09 | 2012-06-14 | 中国葛洲坝集团股份有限公司 | Method for arranging cooling water pipes in large volume concrete |
| CN202465910U (en) * | 2012-03-14 | 2012-10-03 | 江西南方稀土高技术股份有限公司 | Anode electric conduction frame for 5 KA rare earth fused salt bath |
| CN203976935U (en) * | 2014-05-14 | 2014-12-03 | 遵宝钛业有限公司 | A kind of refrigerating unit of closing down magnesium electrolysis bath graphite anode head |
| CN104811132A (en) * | 2015-03-10 | 2015-07-29 | 上海理工大学 | Solar power generation circulating cooling system and control method thereof |
| CN105441987A (en) * | 2015-12-21 | 2016-03-30 | 江西稀有金属钨业控股集团有限公司 | Rare earth fused-salt electrolysis cell for producing rare earth metals and alloys by using liquid cathode |
| WO2019128826A1 (en) * | 2017-12-29 | 2019-07-04 | 中南大学 | Rare earth metal molten salt electrolytic cell |
| CN208308969U (en) * | 2018-06-26 | 2019-01-01 | 包头市中鑫安泰磁业有限公司 | Stove cover plate, re metal electrolyzing slot and heat-exchanger rig |
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