CN208440714U - A kind of protective device of rare earth molten salt electrolytic - Google Patents
A kind of protective device of rare earth molten salt electrolytic Download PDFInfo
- Publication number
- CN208440714U CN208440714U CN201820999798.9U CN201820999798U CN208440714U CN 208440714 U CN208440714 U CN 208440714U CN 201820999798 U CN201820999798 U CN 201820999798U CN 208440714 U CN208440714 U CN 208440714U
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- rare earth
- molten salt
- steel bushing
- steel sleeve
- outer steel
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Abstract
The utility model discloses a kind of protective devices of rare earth molten salt electrolytic; including outer steel sleeve and interior steel bushing; the interior steel bushing is placed in outer steel sleeve; and insulating layer is equipped between outer steel sleeve and interior steel bushing; and the inner wall of interior steel bushing is connected with impervious barrier; the inner wall of the impervious barrier is connected with graphite cuvette; and the inside of graphite cuvette is inserted with cathode bar and anode plate; the lower part of the graphite cuvette, which is equipped with, accepts crucible; the upper end port of the outer steel sleeve is equipped with the insulating barrier being arranged in a ring, and the bottom end of insulating barrier is connected with antioxidation coating.The utility model structure novel, and insulating layer makes it have better heat insulation effect, prevents heat energy dissipation；Impervious barrier makes fused salt leakage prevention strong, and effective solution rare earth electrolysis cell molten salt leakage problem substantially increases the service life of rare earth electrolysis cell；Furnace body upper end is coated with high temperature resistant antioxidation coating, has completely cut off the contact of fused salt steam and flue gas with furnace body, furnace structure is protected not to be damaged by corrosion.
Description
Technical field
The utility model relates to re metal electrolyzing slot attachment device technical field more particularly to a kind of rare earth molten-salt electrolysis
The protective device of slot.
Background technique
Currently, fused salt electrolysis process produces rare earth metal and rare earth alloy, used capital equipment is rare earth molten-salt electrolysis
Slot.In recent years, China's rare earth molten salt electrolytic achieves certain progress, but rare earth electrolysis cell in terms of enlargement, mechanization
Service life it is still very short, reason in addition to high-temperature molten salt have very strong corrosivity other than, also with trough body structure and brickwork
Technique has substantial connection.Currently, domestic list tankage trains rare earth molten salt electrolytic below in Wan An, trough body structure is mainly
The high-temperature molten salt for containing melting as liner by graphite crucible, be close to graphite inner container is smashing of consolidating under the support of interior steel bushing
Paste layer or graphite powder or the ramming bed of material, outside interior steel bushing is insulating layer.This cell construction is simple, quick construction and cost
It is lower, but after a period of time use, electrolytic cell graphite inner container easily occurs and is exposed to the part in air, especially anode gap
Face part graphite inner container is easy to be burnt erosion, and when scaling loss erosion reaches certain degree, electrolytic cell is forced to replace, no
Then molten salt leakage causes furnace body to be scrapped, and electrolytic cell service life is shorter, and the electrolytic cell for producing light rare earth metal or rare earth alloy makes
General only there are three or so moon with the service life, the electrolytic cell service life for producing heavy rare earth alloy only has 70 days or so, electrolytic cell system
This is caused to become the important component of production cost, therefore, in order to solve problems, we have proposed a kind of rare earth molten salts
The protective device of electrolytic cell.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of rare earth molten salt electricity proposed
Solve the protective device of slot.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of protective device of rare earth molten salt electrolytic, including outer steel sleeve and interior steel bushing, the interior steel bushing are placed in outer steel sleeve
It is interior, and insulating layer is equipped between outer steel sleeve and interior steel bushing, and the inner wall of interior steel bushing is connected with impervious barrier, the inner wall of the impervious barrier
It is connected with graphite cuvette, and the inside of graphite cuvette, inserted with cathode bar and anode plate, the lower part of the graphite cuvette, which is equipped with, accepts crucible,
The upper end port of the outer steel sleeve is equipped with the insulating barrier being arranged in a ring, and the bottom end of insulating barrier is connected with antioxidation coating,
And the equal palette in top of the bottom end of antioxidation coating and insulating layer, interior steel bushing, impervious barrier and graphite cuvette, the insulating barrier
Top be connected with stove cover plate, and the inside of stove cover plate is equipped with the cooling water pipe being arranged in a ring, and the top of the cathode bar is worn
The top for crossing stove cover plate extends to the top of stove cover plate.
Preferably, the outer steel sleeve and interior steel bushing are in barrel-shaped setting, and its bottom and surrounding are in that setting is fully sealed.
Preferably, the insulating layer includes fire brick layer and refractory cotton fibrolamellar.
Preferably, the side wall of the stove cover plate is equipped with inlet and outlet.
Preferably, the cathode bar is located at the surface for accepting crucible, the arc-shaped setting of anode plate.
The utility model has the following beneficial effects: the insulating layer that the electrolytic cell of the utility model is arranged makes it have better guarantor
Temp effect prevents heat energy dissipation；Impervious barrier makes fused salt leakage prevention strong, and effective solution rare earth electrolysis cell molten salt leakage is asked
Topic, substantially increases the service life of rare earth electrolysis cell；Furnace body upper end is coated with high temperature resistant antioxidation coating, completely cut off fused salt steam and
Contact of the flue gas with furnace body, protects furnace structure not to be damaged by corrosion；Product quality is improved the design structure of furnace body and energy
Consumption reduces aspect tool and is greatly improved.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of rare earth molten salt electrolytic protective device structural schematic diagram；
Fig. 2 be the utility model proposes a kind of rare earth molten salt electrolytic protective device local structure top view；
Fig. 3 be the utility model proposes a kind of rare earth molten salt electrolytic protective device heat insulation layer structure schematic diagram.
In figure: 1 cathode bar, 2 anode plates, 3 outer steel sleeves, 4 fire brick layers, 5 refractory cotton fibrolamellars, steel bushing, 7 antiseepages in 6
Crucible is accepted in layer, 8 graphite cuvettes, 9 antioxidation coatings, 10 insulating barriers, 11 stove cover plates, 12 cooling water pipes, 13 insulating layers, 14.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of protective device of rare earth molten salt electrolytic, including outer steel sleeve 3 and interior steel bushing 6, interior steel bushing 6 are set
In in outer steel sleeve 3, and insulating layer 13 is equipped between outer steel sleeve 3 and interior steel bushing 6, and the inner wall of interior steel bushing 6 is connected with impervious barrier 7,
The inner wall of the impervious barrier 7 is connected with graphite cuvette 8, and the inside of graphite cuvette 8 is inserted with cathode bar 1 and anode plate 2, the graphite
The lower part of slot 8, which is equipped with, accepts crucible 14, and the upper end port of the outer steel sleeve 3 is equipped with the insulating barrier 10 being arranged in a ring, and absolutely
The bottom end of edge partition 10 is connected with antioxidation coating 9, and the bottom end of antioxidation coating 9 and insulating layer 13, interior steel bushing 6, impervious barrier 7 and
The equal palette in the top of graphite cuvette 8, the top of the insulating barrier 10 is connected with stove cover plate 11, and the inside of stove cover plate 11 is set
There is the cooling water pipe 12 being arranged in a ring, the top that the top of the cathode bar 1 passes through stove cover plate 11 extends to stove cover plate 11
Top, outer steel sleeve 3 and interior steel bushing 6 are in barrel-shaped setting, and its bottom and surrounding, in setting is fully sealed, insulating layer 13 includes
Fire brick layer 4 and refractory cotton fibrolamellar 5, the side wall of stove cover plate 11 are equipped with inlet and outlet, and cathode bar 1, which is located at, accepts earthenware
The surface of crucible 14, the arc-shaped setting of anode plate 2.
Working principle: actual production shows that, when leakage phenomenon occurs for graphite cuvette 8, high-temperature molten salt penetrates the chance of graphite cuvette 8
, can be in impervious barrier 7 Surface Creation, one layer of fine and close glaze layer to impervious barrier 7, the glaze layer of layer densification can hinder the continuation of high-temperature molten salt
Infiltration, protection stove volume surrounding structure are not destroyed, and substantially prolong the service life of graphite cuvette, and average furnace life reaches 6 months, furnace
It is equipped with cooling water pipe 12 in cover board 11, is conducive to radiate, table temperature is made to be unlikely to excessively high, have safer more using operator
It is convenient to carry out table production operation.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of protective device of rare earth molten salt electrolytic, including outer steel sleeve (3) and interior steel bushing (6), which is characterized in that in described
Steel bushing (6) is placed in outer steel sleeve (3), and is equipped with insulating layer (13) between outer steel sleeve (3) and interior steel bushing (6), and interior steel bushing (6)
Inner wall is connected with impervious barrier (7), and the inner wall of the impervious barrier (7) is connected with graphite cuvette (8), and the inside insertion of graphite cuvette (8)
Have a cathode bar (1) and anode plate (2), the lower part of the graphite cuvette (8), which is equipped with, accepts crucible (14), the outer steel sleeve (3) it is upper
End port is equipped with the insulating barrier (10) being arranged in a ring, and the bottom end of insulating barrier (10) is connected with antioxidation coating (9), and anti-
The equal palette in top of the bottom end of oxide layer (9) and insulating layer (13), interior steel bushing (6), impervious barrier (7) and graphite cuvette (8),
The top of the insulating barrier (10) is connected with stove cover plate (11), and the inside of stove cover plate (11) is equipped with the cooling being arranged in a ring
Water pipe (12), the top that the top of the cathode bar (1) passes through stove cover plate (11) extend to the top of stove cover plate (11).
2. a kind of protective device of rare earth molten salt electrolytic according to claim 1, which is characterized in that the outer steel sleeve
It (3) is in barrel-shaped setting with interior steel bushing (6), and its bottom and surrounding are in that setting is fully sealed.
3. a kind of protective device of rare earth molten salt electrolytic according to claim 1, which is characterized in that the insulating layer
It (13) include fire brick layer (4) and refractory cotton fibrolamellar (5).
4. a kind of protective device of rare earth molten salt electrolytic according to claim 1, which is characterized in that the stove cover plate
(11) side wall is equipped with inlet and outlet.
5. a kind of protective device of rare earth molten salt electrolytic according to claim 1, which is characterized in that the cathode bar
(1) it is located at the surface for accepting crucible (14), anode plate (2) arc-shaped setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820999798.9U CN208440714U (en) | 2018-06-27 | 2018-06-27 | A kind of protective device of rare earth molten salt electrolytic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820999798.9U CN208440714U (en) | 2018-06-27 | 2018-06-27 | A kind of protective device of rare earth molten salt electrolytic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208440714U true CN208440714U (en) | 2019-01-29 |
Family
ID=65087077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820999798.9U Expired - Fee Related CN208440714U (en) | 2018-06-27 | 2018-06-27 | A kind of protective device of rare earth molten salt electrolytic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208440714U (en) |
-
2018
- 2018-06-27 CN CN201820999798.9U patent/CN208440714U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 Termination date: 20210627 |