CN102602971A - Electric furnace structure used for fluoridated salt production and manufacturing method of electric furnace - Google Patents
Electric furnace structure used for fluoridated salt production and manufacturing method of electric furnace Download PDFInfo
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- CN102602971A CN102602971A CN2012100999990A CN201210099999A CN102602971A CN 102602971 A CN102602971 A CN 102602971A CN 2012100999990 A CN2012100999990 A CN 2012100999990A CN 201210099999 A CN201210099999 A CN 201210099999A CN 102602971 A CN102602971 A CN 102602971A
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- heater
- electric furnace
- fluoride salt
- induction line
- production
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 150000003839 salts Chemical class 0.000 title abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 230000006698 induction Effects 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 34
- 150000004673 fluoride salts Chemical class 0.000 claims description 34
- 239000004568 cement Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 17
- 239000000292 calcium oxide Substances 0.000 abstract description 10
- 239000010439 graphite Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 229910002804 graphite Inorganic materials 0.000 abstract description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 description 9
- 235000012255 calcium oxide Nutrition 0.000 description 7
- 241000209456 Plumbago Species 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- LRTTZMZPZHBOPO-UHFFFAOYSA-N [B].[B].[Hf] Chemical compound [B].[B].[Hf] LRTTZMZPZHBOPO-UHFFFAOYSA-N 0.000 description 1
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- MMXSKTNPRXHINM-UHFFFAOYSA-N cerium(3+);trisulfide Chemical class [S-2].[S-2].[S-2].[Ce+3].[Ce+3] MMXSKTNPRXHINM-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 229910021343 molybdenum disilicide Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- -1 sodium aluminum fluoride Chemical compound 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- YJIBHPVNTVUEPU-UHFFFAOYSA-N thorium(iv) sulfide Chemical compound S=[Th]=S YJIBHPVNTVUEPU-UHFFFAOYSA-N 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
The invention discloses an electric furnace structure used for fluoridated salt production and a manufacturing method of the electric furnace. The electric furnace structure comprises a furnace body (1) and is characterized in that an induction coil layer (2) is arranged on the furnace body (1), a graphite crucible (3) is arranged in the middle of the furnace body (1), and a calcium oxide layer (4) is arranged between the induction coil layer (2) and the graphite crucible (3). An applicant of the invention does a large number of experiments, and screens and compares various fireproof materials, and finds that if calcium oxide is taken as the fireproof material, the fluoridate salt can not leak in the production process, and the service life of the crucible can be prolonged to be more than 10 days. Simultaneously, calcium oxide is wide in source and low in cost, and is the optimal fireproof material for the industrial production of the electric furnace provided by the invention. Compared with the prior art, the electric furnace structure has the advantages that the leakage amount of the fluoridate salt is reduced, the service life of the graphite crucible is prolonged, the production effect is improved, the production cost is lowered, and the like.
Description
Technical field
The present invention relates to a kind of fluoride salt production with electric cooker structure and making method, belong to fluoride salt and reclaim production technical field.
Background technology
Chinese patent CN101818253 discloses a kind of separation and purification method of electrolytic aluminum scraps, can the fluoride salt in the electrolytic aluminum scraps be separated, through obtaining highly purified fluoride salt (sodium aluminum fluoride) after the electric furnace frit reaction.The contriver finds that in test when existing middle frequency furnace heated fluoride salt, fluoride salt can seepage be gone out from carbon crucible; And the characteristic of fluorine element be can with other substance reaction, generate fluorochemical, reduce its fusing point; Therefore conventional refractory materials is with after the fluoride salt that leaks out contacts; Fusing point reduces, also can liquefy, can't stop the fluoride salt seepage of molten state.Therefore common electric furnace exists the easy seepage of fluoride salt, and carbon crucible and refractory materials damage easily, change frequently, even molten fluoride and ruhmkorff coil that seepage occurs comes in contact, and causes problems such as blast.
Summary of the invention
The objective of the invention is to, provide a kind of fluoride salt production with electric cooker structure and making method.Reduce the seepage of fluoride salt, improve production effect, reduce production costs.
Technical scheme of the present invention.Electric cooker structure is used in fluoride salt production, and structure comprises that body of heater, body of heater are provided with the induction line ring layer, in the middle of body of heater, is provided with carbon crucible, between induction line ring layer and carbon crucible, is provided with cao layers.
Said induction line ring layer comprises the ruhmkorff coil that refractory cements supports.
Said ruhmkorff coil exposes outside refractory cements in the one side in the body of heater outside.
Said bottom of furnace body is provided with the carbon dust layer.
The induction line ring layer is installed on body of heater, carbon crucible is placed in the middle of the body of heater, between induction line ring layer and carbon crucible, put into cao layers.
When the induction line ring layer is installed, build ruhmkorff coil by laying bricks or stones the outside, and the one side that ruhmkorff coil is in the body of heater outside is reserved, expose outside refractory cements at refractory cements.
Said bottom of furnace body is laid the carbon dust layer earlier, carries out the installation of induction line ring layer, carbon crucible and cao layers again.
Key problem of the present invention is, seeks a kind of refractory materials that can keep out fluoride salt reduction melting point substance characteristic, can be when the electric furnace pyroreaction; Delay the speed of fluoride salt seepage from carbon crucible; Improve the work-ing life of carbon crucible, reduce production costs, and make production safer.Therefore; The applicant has carried out lot of test; Various refractory materialss are screened and contrast, comprise (thorium sulfide, cerium sulphides etc.) such as aluminum oxide (corundum), Natural manganese dioxide (magnesia brick), silicon oxide (silica brick), carbide (silit, titanium carbide, tantalum carbide etc.), nitride (SP 1, silicon nitride etc.), boride (zirconium boride 99.5004323A8ure, titanium boride, hafnium boride etc.), silicide (molybdenum disilicide etc.) and sulfide.Find that through test in the above material, carbide itself can generate heat through magnetic field; Can not use as the refractory materials of graphite electric furnace, and other refractory materials, after fluoride salt contacts; The fluorochemical temperature of fusion that reaction generates all is lower than the temperature that fluoride salt production needs, and production technique of the present invention, because the characteristic of fluoride salt; The scaling loss of plumbago crucible is serious, changes frequently, and some refractory materials uses trouble; Replacement cycle is long, also can't carry out suitability for industrialized production, and the applicant tests the contrast back and finds; The fusing point of quicklime is at 2572 ℃, but because therefore easy the and airborne water contact reacts generation of quicklime calcium hydroxide be not a kind of good refractory materials.But in technology of the present invention because plumbago crucible is in the condition of high temperature all the time, quicklime can't with the water contact reacts; Influence its fire resistant heat preserving effect, and the more important thing is, quicklime is with after fluoride salt contacts; The calcium fluoride melting point that generates is more than 1400 ℃; Can resist the Heating temperature of electric furnace preferably, compare with other fluorochemicals, fire performance is better.Through applicant test, electric furnace of the present invention adopts common when containing silicon fire resistive material, and the fluoride salt seepage in the plumbago crucible is serious; Even can leak into electric furnace ruhmkorff coil position, and set off an explosion, can't ordinary production; Aluminum oxide is during as refractory materials, and the fluoride salt in the plumbago crucible can leak in process of production, and every crucible can only use 3-5 days; Use quicklime as refractory materials, fluoride salt can not leak in process of production, and crucible can extend to more than ten days work-ing life.The wide material sources of simultaneous oxidation calcium, cheap concerning suitability for industrialized production of the present invention, are a kind of refractory materialss of the best.Compare with prior art, the present invention has the seepage that reduces fluoride salt, improves plumbago crucible work-ing life, improves production effect, and advantage such as reduce production costs.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Embodiment
Embodiments of the invention.Fluoride salt production of the present invention is installed induction line ring layer 2 with the making method of electric cooker structure on body of heater 1, carbon crucible 3 is placed on body of heater 1 centre, between induction line ring layer 2 and carbon crucible 3, puts into cao layers 4.Cao layers 4 is selected just to bake no moisture, the unslaked lime that purity is high.
When induction line ring layer 2 is installed; Ruhmkorff coil 6 is built by laying bricks or stones in the outside of refractory cements 5, and the one side that ruhmkorff coil 6 is in body of heater 1 outside is reserved, expose outside refractory cements 5; Like this behind fused fluorochemical contact induction coil 6; Fluorochemical can flow out from ruhmkorff coil 6 outsides, rather than is deposited in ruhmkorff coil 6 places, causes blast at last.
Said body of heater 1 bottom is laid carbon dust layer 7 earlier, carries out the installation of induction line ring layer 2, carbon crucible 3 and cao layers 4 again.Carbon dust layer 7 can prevent the erosion of seepage fluoride salt as bottom, avoids the bottom to burn, and the problem that carbon crucible 3 drops takes place.The laying quicklime also can play the effect of carbon dust layer 7, but the anti-erosion better effects if of carbon dust layer 7.
As shown in Figure 1, electric cooker structure is used in fluoride salt production, and structure comprises body of heater 1, and induction line ring layer 2 is installed on the body of heater 1, and carbon crucible 3 is installed in the middle of body of heater 1, between induction line ring layer 2 and carbon crucible 3, lays cao layers 4.
Induction line ring layer 2 comprises the ruhmkorff coil 6 that refractory cements 5 supports, and during installation, ruhmkorff coil 6 exposes outside refractory cements 5 in the one side in body of heater 1 outside.
During use, after carbon crucible 3 installed, join raw material in the carbon crucible 3, ruhmkorff coil 6 energisings of body of heater 1 to carbon crucible 3 heating, make the raw material of carbon crucible 3 reach molten state, and fluoride salt is promptly separable with other impurity.After carbon crucible 3 scaling loss were serious, carbon crucible 3 and cao layers 4 were changed in the blowing out maintenance, produce again again.
Claims (7)
1. electric cooker structure is used in a fluoride salt production; Structure comprises body of heater (1); It is characterized in that: body of heater (1) is provided with induction line ring layer (2), in the middle of body of heater (1), is provided with carbon crucible (3), between induction line ring layer (2) and carbon crucible (3), is provided with cao layers (4).
2. electric cooker structure is used in fluoride salt production according to claim 1, it is characterized in that: said induction line ring layer (2) comprises the ruhmkorff coil (6) that refractory cements (5) supports.
3. electric cooker structure is used in fluoride salt production according to claim 2, it is characterized in that: said ruhmkorff coil (6) exposes outside refractory cements (5) in the one side in body of heater (1) outside.
4. electric cooker structure is used in fluoride salt production according to claim 1, it is characterized in that: said body of heater (1) bottom is provided with carbon dust layer (7).
5. according to the making method of each described fluoride salt production of claim 1-4 with electric cooker structure; It is characterized in that: go up at body of heater (1) induction line ring layer (2) is installed; Carbon crucible (3) is placed on body of heater (1) centre, between induction line ring layer (2) and carbon crucible (3), puts into cao layers (4).
6. fluoride salt production according to claim 5 is with the making method of electric cooker structure; It is characterized in that: when induction line ring layer (2) is installed; Build ruhmkorff coil (6) by laying bricks or stones the outside in refractory cements (5); And the one side that ruhmkorff coil (6) is in body of heater (1) outside reserved, expose outside refractory cements (5).
7. fluoride salt production according to claim 5 is characterized in that with the making method of electric cooker structure: said body of heater (1) bottom is laid carbon dust layer (7) earlier, carries out the installation of induction line ring layer (2), carbon crucible (3) and cao layers (4) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100999990A CN102602971A (en) | 2012-04-06 | 2012-04-06 | Electric furnace structure used for fluoridated salt production and manufacturing method of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100999990A CN102602971A (en) | 2012-04-06 | 2012-04-06 | Electric furnace structure used for fluoridated salt production and manufacturing method of electric furnace |
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| Publication Number | Publication Date |
|---|---|
| CN102602971A true CN102602971A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100999990A Pending CN102602971A (en) | 2012-04-06 | 2012-04-06 | Electric furnace structure used for fluoridated salt production and manufacturing method of electric furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN102602971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506308A (en) * | 2016-01-07 | 2016-04-20 | 阮正华 | Electrolytic aluminum waste purifying furnace structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605561A (en) * | 2003-10-10 | 2005-04-13 | 曹文兴 | Production equipment and method of silicon used for solar battery |
| CN202499721U (en) * | 2012-04-06 | 2012-10-24 | 邹建明 | Electric furnace structure for fluoride salt production |
-
2012
- 2012-04-06 CN CN2012100999990A patent/CN102602971A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605561A (en) * | 2003-10-10 | 2005-04-13 | 曹文兴 | Production equipment and method of silicon used for solar battery |
| CN202499721U (en) * | 2012-04-06 | 2012-10-24 | 邹建明 | Electric furnace structure for fluoride salt production |
Non-Patent Citations (2)
| Title |
|---|
| 胡宝玉 等: "《特种耐火材料实用技术手册》", 30 June 2004 * |
| 马世昌: "《基础化学反应》", 31 January 2003, 陕西科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506308A (en) * | 2016-01-07 | 2016-04-20 | 阮正华 | Electrolytic aluminum waste purifying furnace structure |
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Effective date of registration: 20151009 Address after: 550004, hawthorn alley, Yunyan District, Guizhou, Guiyang 40 Applicant after: Zhou Junhe Applicant after: Du Yanhua Address before: 1, unit 3, building 99, 550014 Yucai Road, Baiyun District, Guizhou, Guiyang, 601 Applicant before: Zou Jianming Applicant before: Du Yanhua |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120725 |
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| RJ01 | Rejection of invention patent application after publication |