CN1288258C - Method for preparing silumin and Al-Si-Mn-Fe-Ti alloy by using high-aluminum fly ash - Google Patents
Method for preparing silumin and Al-Si-Mn-Fe-Ti alloy by using high-aluminum fly ash Download PDFInfo
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- CN1288258C CN1288258C CNB2004100090466A CN200410009046A CN1288258C CN 1288258 C CN1288258 C CN 1288258C CN B2004100090466 A CNB2004100090466 A CN B2004100090466A CN 200410009046 A CN200410009046 A CN 200410009046A CN 1288258 C CN1288258 C CN 1288258C
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- alloy
- ash
- aluminium
- aluminous fly
- wilmil
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- 239000010881 fly ash Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 25
- 239000000956 alloy Substances 0.000 title claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 25
- 229910000551 Silumin Inorganic materials 0.000 title abstract description 6
- 229910002593 Fe-Ti Inorganic materials 0.000 title abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 239000011572 manganese Substances 0.000 claims abstract description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 17
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000005453 pelletization Methods 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 239000002802 bituminous coal Substances 0.000 claims description 7
- 239000000571 coke Substances 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 238000013467 fragmentation Methods 0.000 claims description 4
- 238000006062 fragmentation reaction Methods 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 3
- 241001417490 Sillaginidae Species 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000007885 magnetic separation Methods 0.000 claims description 2
- 239000006148 magnetic separator Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 229910001570 bauxite Inorganic materials 0.000 abstract description 7
- 238000003723 Smelting Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 2
- 239000002006 petroleum coke Substances 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000007865 diluting Methods 0.000 abstract 1
- 239000008188 pellet Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- -1 aluminium-silicon-manganese-iron titanium Chemical compound 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a method for producing silumin and Al-Si-Mn-Fe-Ti alloy from high-aluminum fly ash, which belongs to the technical field of non-ferrous metal metallurgy. The method of the present invention comprises the following steps: iron is removed from high-aluminum fly ash as raw material, and high-aluminum bauxite, soft coal as a reducing agent and petroleum coke are crushed respectively; the processed high-aluminum fly ash, the high-aluminum bauxite, the soft coal and the petroleum coke are batched and mixed; an agglomerant and water are added to the mixed material, and the mixed material is balled and dried; a dried pellet is sent to a low shaft electric furnace for smelting at a high temperature to obtain one-time alloy; the one-time alloy is refined and filtered to remove inclusions and gas from the alloy; manganese blocks are added to the refined alloy to remove iron, and the Al-Si-Mn-Fe-Ti alloy is obtained by filtration; aluminum is added to the filtered alloy without iron for diluting and casting an ingot mould to obtain the silumin. The present invention has the advantages of wide source of raw material, low investment, low production cost, short production periodicity and low energy consumption, and can obtain the silumin and the Al-Si-Mn-Fe-Ti alloy of good quality, and produce obvious economic benefit.
Description
Technical field
The present invention relates to the non-ferrous metal metallurgy technical field, particularly prepare the method for wilmil and aluminium-silicon-ferromanganese-titanium alloy with aluminous fly-ash.
Background technology
Wilmil (Silumin) is called aluminum silicon alloy again, is to use structural metallic materials very widely in the modern industry, accounts for about 30% in the total quantity consumed of aluminium, is mainly used in fields such as aerospace, automotive industry, machinofacture, military project and home appliances.At present, wilmil is expanded to frontiers such as construction industry, packing business, vehicles production just rapidly, and is particularly swift and violent at the application development of industrially developed country.
Chinese patent of the prior art, the patent No. are that the patent of invention " novel process is produced silumin " of 01109320.X is to adopt the hot stove in ore deposit to produce wilmil from aluminiferous ore and silica mine, and the raw material that this technology adopts is bauxite, kaolin and silica mine.China's bauxite resource shortage at present, the ore resource increase that causes preparation cost in short supply, and also directly the influence preparation is carried out.The patent No. is the patent of invention " with slag fly-ash Preparation silicon aluminum alloy product and method " of 89108861.X, and its summary of the invention comes down to the preparation technology of fly-ash Preparation Alsimin, rather than wilmil.Contain a certain amount of iron in the Alsimin, as steel making deoxidant and alloying constituent.The preparation producer that China's electric heating process also of no use prepares wilmil, preparing wilmil at present all is to adopt electrolytic aluminum and industrial silicon fusion to mix to make, and the production cycle is long, and power consumption is high, the production cost height.And electrolytic process is produced aluminium and is needed earlier bauxite is made aluminum oxide, electrolytic preparation aluminium again, thereby need to build aluminum oxide and electrolytic aluminium factory, and investment is big, the energy consumption height, and this has just restricted China's aluminium industrial expansion to a certain extent.
Summary of the invention
At above-mentioned deficiency of the prior art, the purpose of this invention is to provide a kind of method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy.Not only raw material sources are wide, investment is little, production cost is low for it, with short production cycle, energy consumption is low, and aluminium content can reach about 85% in the wilmil that makes, the polynary iron alloy of byproduct aluminium-silicon-manganese-iron titanium is a good reductor in the steel-making simultaneously, can produce remarkable economic efficiency.
In order to realize the foregoing invention purpose, technical scheme of the present invention realizes as follows:
Utilize aluminous fly-ash to prepare the method for wilmil and aluminium-silicon-ferromanganese-titanium alloy, the steps include:
1. to the deironing of raw material aluminous fly-ash, Al in the aluminous fly-ash
2O
3Content 〉=45%, SiO
2Content 〉=35%, Fe
2O
3Content≤3%, and respectively with alumine and reductive agent bituminous coal, refinery coke fragmentation;
2. aluminous fly-ash, alumine and bituminous coal, the refinery coke after handling prepared burden and mixed;
3. in compound, add binding agent and water balling-up, drying;
4. dried pelletizing drops into the hot furnace high-temperature in ore deposit and smelts, and makes alloy one time;
5. an alloy is removed inclusion and gas in the alloy through refining and filtration;
6. the deironing of manganese addition piece, filtration in the alloy after the refining makes aluminium-silicon-ferromanganese-titanium alloy;
7. add the aluminium dilution in deironing, the filtered alloy and water ingot mould, make wilmil.
In above-mentioned steps, Al in the described alumine
2O
3Content 〉=70%, Fe
2O
3Content≤0.5%.
In above-mentioned steps, the deferrization process of described aluminous fly-ash adopts high gradient magnetic separator iron removal by magnetic separation, Fe in the aluminous fly-ash after the deironing
2O
3Content be lower than 1.5%.
In above-mentioned steps, the weight proportion Al of described compound
2O
3/ SiO
2Between 1.5～2.0.
In above-mentioned steps, the binding agent that described balling technique adopts is clay or black liquid, and the ratio of clay is 6～8% of a compound, and the ratio of black liquid is 3～6% of a compound.
In above-mentioned steps, described balling-up diameter dimension is 30～80mm.
In above-mentioned steps, described balling-up pelletizing is dried to water content below 3%.
In above-mentioned steps, described aluminium dilution technique adopts and adds aluminium ingot or aluminium water.
In above-mentioned steps, the hot stove in described ore deposit is the power hot stove in three electrodes of the three-phase more than 16500KVA interchange ore deposit at least.
Compared with the prior art, the invention has the advantages that:
(1) Al in the raw material aluminous fly-ash
2O
3Content more than 45%, SiO
2Content is more than 35%, Fe
2O
3Content below 3%, between secondary and three grades of bauxite, can replace bauxite and silica mine raw material as the preparation wilmil, realize the changing waste into resources utilization, reduce production costs greatly.
(2) adopt aluminous fly-ash to make raw material, be powdery, need not fragmentation, reduce broken process;
(3) because the aluminous fly-ash granularity is thinner, add a small amount of alumine in the raw material, form grain composition, can improve balling-up intensity.
(4) because aluminous fly-ash is to form through high temperature sintering in coal-powder boiler, so sintering time is short when smelting in stove, reduction is fast, and is capable of reducing energy consumption;
(5) contain a small amount of TiO in the aluminous fly-ash
2, can generate the polynary iron alloy of byproduct aluminium-silicon-manganese-iron titanium, be good reductor in the steel-making.
Description of drawings
Accompanying drawing is technological process of production figure of the present invention.
Embodiment
Referring to accompanying drawing, the method for utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy among the present invention is:
1. select for use and contain Al
2O
352%, SiO
238% and Fe
2O
32.5% aluminous fly-ash is as main raw material, and adding contains Al
2O
375%, Fe
2O
30.5% alumine and ash content is low, fixed carbon content height, reductive agent bituminous coal and refinery coke that cohesiveness is good.To Fe wherein after the aluminous fly-ash deironing
2O
3Content be lower than 1.5%, simultaneously alumine, bituminous coal and refinery coke are carried out fragmentation.
2. aluminous fly-ash, alumine, bituminous coal and refinery coke after handling are according to weight proportion Al
2O
3/ SiO
2Be 1.8 to prepare burden and mix.
3. the binding agent black liquid and the water of adding 5% in compound mix the back and drop into nodulizer, and becoming spherical diameter is the pelletizing of 30～80mm.Pelletizing is dried to water content below 3%, and pelletizing will have suitable space and keep certain mechanical strength.
4. dried pelletizing drops in the hot stove in three-phase three electrodes interchange ore deposit that power is 16500KVA, and its secondary voltage is 130～150V.Adopt the method for smoldering jetsam that pelletizing is carried out pyrotic smelting, this method requires electrode to stablize buried, few fire, many smolderings.In the hot stove in ore deposit, charge level forms mild cone, the about 200～300mm of cone height around three electrodes.Charge level spreads one deck coal dust, carries out smoldering so that seal charge level, improves the lower furnace portion temperature.In the smelting process, adjust charge level meticulously, avoid thorn fire, the material that collapses, make an alloy that contains aluminium 50%～60%.
During 5. to a refining and modifying, add the refining agent of a weight alloy 3%, the component of refining agent is 18% sodium aluminum fluoride, 66% NaCl and 16% KCl.Alloy after the refining is filtered, remove inclusion and gas in the alloy.
6. add the manganese piece in the alloy after the refining, make aluminium-silicon-ferromanganese-titanium alloy through deironing, filtration.
7. add aluminium water or aluminium ingot dilution in the alloy after the manganese addition deironing is handled, water ingot mould then and make wilmil.
Claims (9)
1, utilizes aluminous fly-ash to prepare the method for wilmil and aluminium-silicon-ferromanganese-titanium alloy, the steps include:
1. to the deironing of raw material aluminous fly-ash, Al in the aluminous fly-ash
2O
3Content 〉=45%, SiO
2Content 〉=35%, Fe
2O
3Content≤3%, and respectively with alumine and reductive agent bituminous coal, refinery coke fragmentation;
2. aluminous fly-ash, alumine and bituminous coal, the refinery coke after handling prepared burden and mixed;
3. in compound, add binding agent and water balling-up, drying;
4. dried pelletizing drops into the hot furnace high-temperature in ore deposit and smelts, and makes alloy one time;
5. an alloy is removed inclusion and gas in the alloy through refining and filtration;
6. the deironing of manganese addition piece, filtration in the alloy after the refining makes aluminium-silicon-ferromanganese-titanium alloy;
7. add the aluminium dilution in deironing, the filtered alloy and water ingot mould, make wilmil.
2, according to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 1, it is characterized in that Al in the described alumine
2O
3Content 〉=70%, Fe
2O
3Content≤0.5%.
3, according to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 1, it is characterized in that the weight proportion Al of described compound
2O
3/ SiO
2Between 1.5～2.0.
According to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 1, it is characterized in that 4, the deferrization process of described aluminous fly-ash adopts high gradient magnetic separator iron removal by magnetic separation, Fe in the aluminous fly-ash after the deironing
2O
3Content be lower than 1.5%.
5, according to claim 1,2, the 3 or 4 described methods of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy, it is characterized in that, the binding agent that described balling technique adopts is clay or black liquid, the ratio of clay is 6～8% of a compound, and the ratio of black liquid is 3～6% of a compound.
According to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 5, it is characterized in that 6, described balling-up diameter dimension is 30～80mm.
According to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 6, it is characterized in that 7, described balling-up pelletizing is dried to water content below 3%.
According to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 7, it is characterized in that 8, described aluminium dilution technique adopts and adds aluminium ingot or aluminium water.
According to the described method of utilizing aluminous fly-ash to prepare wilmil and aluminium-silicon-ferromanganese-titanium alloy of claim 8, it is characterized in that 9, the hot stove in described ore deposit is the power hot stove in three electrodes of the three-phase more than 16500KVA interchange ore deposit at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100090466A CN1288258C (en) | 2004-04-26 | 2004-04-26 | Method for preparing silumin and Al-Si-Mn-Fe-Ti alloy by using high-aluminum fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100090466A CN1288258C (en) | 2004-04-26 | 2004-04-26 | Method for preparing silumin and Al-Si-Mn-Fe-Ti alloy by using high-aluminum fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1690235A CN1690235A (en) | 2005-11-02 |
| CN1288258C true CN1288258C (en) | 2006-12-06 |
Family
ID=35345987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100090466A Expired - Lifetime CN1288258C (en) | 2004-04-26 | 2004-04-26 | Method for preparing silumin and Al-Si-Mn-Fe-Ti alloy by using high-aluminum fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1288258C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425714C (en) * | 2006-12-04 | 2008-10-15 | 山西泰尔钢铁有限公司 | Process of refining aluminium silicon alloy from coal gangue or flyash |
| CN102061412B (en) * | 2011-01-30 | 2013-03-20 | 重庆大学 | Preparation method of manganese-based MnAlSiTi alloy with high titanate content |
| CN109266843A (en) * | 2018-11-12 | 2019-01-25 | 成都先进金属材料产业技术研究院有限公司 | The method of one step production aluminium silicon titanium alloy |
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2004
- 2004-04-26 CN CNB2004100090466A patent/CN1288258C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1690235A (en) | 2005-11-02 |
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