CN104328458A - High-yield and energy-saving electrolytic furnace for rare-earth metals - Google Patents
High-yield and energy-saving electrolytic furnace for rare-earth metals Download PDFInfo
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- CN104328458A CN104328458A CN201410658625.7A CN201410658625A CN104328458A CN 104328458 A CN104328458 A CN 104328458A CN 201410658625 A CN201410658625 A CN 201410658625A CN 104328458 A CN104328458 A CN 104328458A
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- graphite
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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
- 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
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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
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a high-yield and energy-saving electrolytic furnace for rare-earth metals. The high-yield and energy-saving electrolytic furnace comprises a cathode, a graphite anode, electrolyte, a graphite groove, a crucible, an inner steel sleeve, an outer steel sleeve, a filler layer, diamantane and a furnace panel. The high-yield and energy-saving electrolytic furnace has the characteristics that the furnace building cost is low, the service life is long, the heat balance is good, the content of impurities in a product is less, the yield is high, the energy is saved and the operation is convenient and the like.
Description
Technical field
The present invention relates to a kind of high yield and saving energy re metal electrolyzing stove.
Background technology
Soil electrolytic furnace is the major equipment that re metal electrolyzing method adopts.Current oxide electrolyte electrolytic process produces the electrolytic furnace of rare earth metal and alloy thereof, says the electrolytic furnace of 4000A, 6000A, 10000A, 25000A, 30000A electric current from scale.The no matter electrolytic furnace of which kind of scale, its furnace binding is nothing more than there being two kinds of ways.One is be processed into plumbago crucible by Graphite Electrodes, and outside graphite bisque, steel bushing, thermal insulation layer wrap up formation layer by layer, and 4000A, 6000A type of furnace adopts this way mostly.Two is build by laying bricks or stones with graphite cake, and lower portion of furnace body carbonaceous or carbonaceous compound carry out entirety knotting, prevent seepage.The mixture knottings such as upper of furnace body rare earth oxide, fluorochemical prevent graphite oxidation, additional thermal insulation layer, and Wan An training type of furnace adopts this way mostly.
The first brickwork method is fairly simple and cost is lower, but the life-span in furnace life is too short, generally only has three or four months, causes production cost to remain high.Prior shortcoming is that furnace temperature is higher, and quality product fluctuates with workman's production operation level height, and carbon content is higher.On the other hand, because furnace temperature is higher, cause Faradaic current to be opened to get on, the electrolytic furnace electric current of 6000A can only reach about 4200A, and therefore output is on the low side.The second brickwork method comparatively the first brickwork is compared, furnace life improves a lot, but method is complicated and the expensive cost of the furnace building material used is high, also there is body of heater thermal equilibrium bad simultaneously, furnace temperature is higher, carbon and other non-rare earth impurity content higher, affect quality product and improve further, in order to make electrolysis temperature maintain optimum range, Faradaic current does not often reach the rated current of electrolytic furnace itself yet.Having a common weak point with the electrolytic furnace manufactured by these two kinds of brickwork methods, is exactly that body of heater thermal equilibrium is bad, and during production, furnace temperature is difficult to control to and is in harmony benefit, so product carbon content is difficult to control.
Summary of the invention
The present invention, in order to solve the above-mentioned deficiency of prior art, proposes a kind of high yield and saving energy re metal electrolyzing stove.
In order to solve the problems of the technologies described above, the present invention is by the following technical solutions: a kind of high yield and saving energy re metal electrolyzing stove, comprise barrel-shaped outer steel sleeve and interior steel bushing, described interior steel bushing is inserted in described outer steel sleeve, and the gap between interior steel bushing outer wall and outer steel sleeve inwall fills packing layer; The inside of described interior steel bushing is provided with a graphite cuvette, and the inside of this graphite cuvette has an electrolytical accommodation space of collecting, and bottom closing in place of this accommodation space is provided with the crucible for collecting the rare earth metal that electrolysis generates; The port, upper end of described outer steel sleeve is provided with a stove cover plate, the middle part of described stove cover plate is provided with the circular fire door corresponding to described graphite cuvette notch, described circular fire door internal fixtion the four pieces of graphite anodes stretched in graphite cuvette, four pieces of described graphite anodes surround hollow posts structure, and the centre of this graphite anode is provided with electrolysis cathode.
Further, described packing layer comprises the lower floor adopting the loose placement of clay brick to build up and the upper strata adopting concrete placement to be formed, and the surface adhesion on described upper strata stove cover plate.
Further, the white fused alumina layer for insulated heat is provided with between the upper end end face of described stove cover plate and described graphite cuvette.
Further, the upper end end face of described stove cover plate is also fixed wtih the water-cooled tube of annular, this water-cooled tube is provided with water-in and water outlet.
Compared with prior art, packing layer of the present invention adopts clay brick and concrete, and cost is low, quick detachable, and furnace life, only need change graphite cuvette and concrete, all the other materials were all reusable to after date.Inside and outside steel bushing, concrete, furnace panel seal graphite cuvette periphery jointly, avoid graphite cuvette and hot air, extend the work-ing life of graphite cuvette, adopt the better material of heat conductivility and the annular cooling water pipes such as clay brick simultaneously, be conducive to heat radiation, in-furnace temperature can not rise so high and cause product rejection, and project organization improves product volume and product quality greatly, energy-conserving and environment-protective, handled easily personnel production operation, practical, be worthy to be popularized.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention;
Fig. 2 is that furnace panel of the present invention overlooks installation plan.
Embodiment
Below in conjunction with drawings and Examples, invention is described in detail.
As shown in Figure 1, 2, the high yield and saving energy re metal electrolyzing stove that the present invention proposes, comprise barrel-shaped outer steel sleeve 8 and interior steel bushing 7, interior steel bushing 7, outer steel sleeve 8 are barrel-shaped, and bottom and surrounding seal completely, and wall thickness is 5-10mm.Interior steel bushing 7 is inserted in outer steel sleeve 8, and the gap between interior steel bushing 7 outer wall and outer steel sleeve 8 inwall fills packing layer; Packing layer comprises the lower floor 10 adopting the loose placement of clay brick to build up and the upper strata 9 adopting concrete placement to be formed, and the surface adhesion on upper strata stove cover plate 12.
The inside of interior steel bushing 7 is provided with a graphite cuvette 4, and the external diameter of graphite cuvette 4 is more smaller than the internal diameter of interior steel bushing, filled stone ink powder between graphite cuvette 4 and interior steel bushing 7, and packing layer plays high temperature resistant, anti-oxidant, fixing interior steel bushing 7 and graphite cuvette 4.The inside of this graphite cuvette has the accommodation space of a collecting ionogen 3, and bottom closing in place of this accommodation space is provided with the crucible 5 for collecting the rare earth metal 6 that electrolysis generates; The port, upper end of outer steel sleeve 8 is provided with a stove cover plate 12, the middle part of stove cover plate 12 is provided with the circular fire door 13 corresponding to described graphite cuvette 4 notch, circular fire door 13 internal fixtion the 4 pieces of graphite anodes 2 stretched in graphite cuvette 4, graphite anode 2 is fixed on stove cover plate 12 by stationary installation 17, and 4 pieces of graphite anodes 2 surround hollow posts structure, the centre of hollow posts structure is unsettled is provided with electrolysis cathode 1, and the position alignment of crucible 5, in the below of graphite anode 2, can collect the rare-earth products of electrolysis.
The white fused alumina layer 11 for insulated heat is provided with, white fused alumina layer 11 heat insulation and insulating effect between the upper end end face of stove cover plate 12 and graphite cuvette 4.The upper end end face of stove cover plate 12 is also fixed wtih the water-cooled tube 14 of annular, this water-cooled tube 14 is provided with water-in 15 and water outlet 16, and water-cooled tube 14 pours circulating water and cools whole stove cover plate 12.
Adopt clay brick and concrete at packing layer, cost is low, quick detachable.Furnace life, only need change graphite cuvette and concrete, all the other materials were all reusable to after date.Inside and outside steel bushing, concrete, furnace panel seal graphite cuvette periphery jointly, avoid graphite cuvette and hot air, extend the work-ing life of graphite cuvette, and on average reach 5 wheat harvesting periods, work-ing life improves more than 50%.Adopt thinner graphite cuvette and graphite anode, improve anode surface area, can Faradaic current be strengthened, adopt the better material of heat conductivility and the square water-cooled tubes such as clay brick simultaneously, be conducive to heat radiation, even if electric current is increased to 6000A, in-furnace temperature also can not rise so high and cause product rejection.Electrolytic furnace has good thermal equilibrium, electrolysis temperature is easy to control in optimum range, there will not be the problem that electrolysis temperature rises and fall sharply and quickly, thus the impurity element of furnace building material or the impact of machine equipment material is subject in product, content as iron, carbon, copper, molybdenum, tungsten etc. can reduce greatly, thus can improve the quality of products, and analysis shows, total amount of rare earth can reach more than 99.5%, and carbon content is usually at below 100ppm.Actual use shows, output improves more than 35% than original.Amplitude due to output increased is greater than the lost amplitude of heat, embodies energy-conservation effect, and energy consumption of unit product declines more than 5%.Lower part of body of heater is positioned at underground, handled easily personnel production operation.
Above-described embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, patent of the present invention and protection domain should be as the criterion with appended claims.
Claims (4)
1. a high yield and saving energy re metal electrolyzing stove, it is characterized in that: comprise barrel-shaped outer steel sleeve (8) and interior steel bushing (7), described interior steel bushing (7) is inserted in described outer steel sleeve (8), and the gap between interior steel bushing (7) outer wall and outer steel sleeve (8) inwall fills packing layer; The inside of described interior steel bushing (7) is provided with a graphite cuvette (4), and the inside of this graphite cuvette has the accommodation space of collecting ionogen (3), and bottom closing in place of this accommodation space is provided with the crucible (5) for collecting the rare earth metal (6) that electrolysis generates; The port, upper end of described outer steel sleeve (8) is provided with a stove cover plate (12), the middle part of described stove cover plate (12) is provided with the circular fire door (13) corresponding to described graphite cuvette (4) notch, described circular fire door (13) internal fixtion the four pieces of graphite anodes (2) stretched in graphite cuvette (4), four pieces of graphite anodes (2) surround a hollow posts structure, and the centre of this hollow posts structure is provided with electrolysis cathode (1).
2. high yield and saving energy re metal electrolyzing stove as claimed in claim 1, it is characterized in that: described packing layer comprises the lower floor (10) adopting the loose placement of clay brick to build up and the upper strata (9) adopting concrete placement to be formed, and the surface adhesion on described upper strata stove cover plate (12).
3. high yield and saving energy re metal electrolyzing stove as claimed in claim 1, is characterized in that: be provided with the white fused alumina layer (11) for insulated heat between the upper end end face of described stove cover plate (12) and described graphite cuvette (4).
4. high yield and saving energy re metal electrolyzing stove as claimed in claim 1, it is characterized in that: the water-cooled tube (14) the upper end end face of described stove cover plate (12) being also fixed wtih annular, this water-cooled tube (14) is provided with water-in (15) and water outlet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410658625.7A CN104328458B (en) | 2014-11-19 | 2014-11-19 | A kind of high yield and saving energy re metal electrolyzing stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410658625.7A CN104328458B (en) | 2014-11-19 | 2014-11-19 | A kind of high yield and saving energy re metal electrolyzing stove |
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| CN104328458A true CN104328458A (en) | 2015-02-04 |
| CN104328458B CN104328458B (en) | 2018-05-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674307A (en) * | 2015-03-17 | 2015-06-03 | 赣州晨光稀土新材料股份有限公司 | Rare earth molten salt electrolytic furnace |
| CN108374184A (en) * | 2017-12-28 | 2018-08-07 | 龙南县中利再生资源开发有限公司 | A kind of high yield and saving energy re metal electrolyzing stove |
| WO2019128826A1 (en) * | 2017-12-29 | 2019-07-04 | 中南大学 | Rare earth metal molten salt electrolytic cell |
| CN115852446A (en) * | 2022-12-09 | 2023-03-28 | 四川源莱顺稀土新材料有限公司 | Manufacturing method of electrolytic furnace |
| CN117385419A (en) * | 2023-12-13 | 2024-01-12 | 赣州晨光稀土新材料有限公司 | Automatic tapping device for rare earth crucible |
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| JPH04176889A (en) * | 1990-11-13 | 1992-06-24 | Nikko Kyodo Co Ltd | Apparatus for producing high-purity y |
| CN1198482A (en) * | 1997-05-05 | 1998-11-11 | 包钢稀土三厂 | Preparation of battery grade mixed rareearth metal by rareearth chloride molten-salt electrolysis and its equipment |
| CN101368282A (en) * | 2007-08-14 | 2009-02-18 | 北京有色金属研究总院 | Lower cathode rare earth metal electrolytic tank and electrolysis technique adopting the same |
| CN202415703U (en) * | 2011-12-28 | 2012-09-05 | 赣州科力稀土新材料有限公司 | Electrolytic cell for producing rare earth metals |
| CN103614747A (en) * | 2013-12-17 | 2014-03-05 | 包头市玺骏稀土有限责任公司 | Large combined rare earth fused salt electrolytic bath system |
| CN204198869U (en) * | 2014-11-19 | 2015-03-11 | 赣州三友稀土新材料有限公司 | A kind of high yield and saving energy re metal electrolyzing stove |
-
2014
- 2014-11-19 CN CN201410658625.7A patent/CN104328458B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04176889A (en) * | 1990-11-13 | 1992-06-24 | Nikko Kyodo Co Ltd | Apparatus for producing high-purity y |
| CN1198482A (en) * | 1997-05-05 | 1998-11-11 | 包钢稀土三厂 | Preparation of battery grade mixed rareearth metal by rareearth chloride molten-salt electrolysis and its equipment |
| CN101368282A (en) * | 2007-08-14 | 2009-02-18 | 北京有色金属研究总院 | Lower cathode rare earth metal electrolytic tank and electrolysis technique adopting the same |
| CN202415703U (en) * | 2011-12-28 | 2012-09-05 | 赣州科力稀土新材料有限公司 | Electrolytic cell for producing rare earth metals |
| CN103614747A (en) * | 2013-12-17 | 2014-03-05 | 包头市玺骏稀土有限责任公司 | Large combined rare earth fused salt electrolytic bath system |
| CN204198869U (en) * | 2014-11-19 | 2015-03-11 | 赣州三友稀土新材料有限公司 | A kind of high yield and saving energy re metal electrolyzing stove |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674307A (en) * | 2015-03-17 | 2015-06-03 | 赣州晨光稀土新材料股份有限公司 | Rare earth molten salt electrolytic furnace |
| CN108374184A (en) * | 2017-12-28 | 2018-08-07 | 龙南县中利再生资源开发有限公司 | A kind of high yield and saving energy re metal electrolyzing stove |
| WO2019128826A1 (en) * | 2017-12-29 | 2019-07-04 | 中南大学 | Rare earth metal molten salt electrolytic cell |
| CN115852446A (en) * | 2022-12-09 | 2023-03-28 | 四川源莱顺稀土新材料有限公司 | Manufacturing method of electrolytic furnace |
| CN117385419A (en) * | 2023-12-13 | 2024-01-12 | 赣州晨光稀土新材料有限公司 | Automatic tapping device for rare earth crucible |
| CN117385419B (en) * | 2023-12-13 | 2024-03-08 | 赣州晨光稀土新材料有限公司 | Automatic tapping device for rare earth crucible |
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| Publication number | Publication date |
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| CN104328458B (en) | 2018-05-04 |
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