CN105200237A - Process method for regenerating and recycling aluminum scrap resources - Google Patents
Process method for regenerating and recycling aluminum scrap resources Download PDFInfo
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- CN105200237A CN105200237A CN201510631834.7A CN201510631834A CN105200237A CN 105200237 A CN105200237 A CN 105200237A CN 201510631834 A CN201510631834 A CN 201510631834A CN 105200237 A CN105200237 A CN 105200237A
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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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Abstract
The invention relates to a process method for regenerating and recycling aluminum scrap resources, which belongs to the treatment field of waste materials, and comprises steps of screen of waste materials, iron removing and refinement treatment and the like. The process method for regenerating and recycling aluminum scrap resources can improve utilization value of aluminum scrap materials, and reprocesses aluminum materials to obtain aluminum deoxidized (AD) powder after being decomposed and purified. Molten aluminum is formed to be aluminum ingots to recycle after being purified.
Description
Technical field
The present invention relates to a kind of scrap aluminum resources recycling utilization processing method, belong to waste disposal field.
Background technology
Aluminium is a kind of chemical element.Its chemical symbol is Al, and its ordination number is 13.The content of aluminium element in the earth's crust is only second to oxygen and silicon, and occupying the 3rd, is the metallic element that in the earth's crust, content is the abundantest.In metal species, being only second to iron and steel, is second largest metalloid.To 19 end of the centurys, aluminium is just shown up prominently, and becomes competitive metal in engineer applied, and voguish.The application of aluminium is very extensive, and the development of aviation, building, the large essential industry of automobile three, requires that material behavior has the peculiar property of Aluminum-aluminum alloy, and this is just conducive to production and the regeneration application of this new metallic aluminium greatly.
For aluminium scrap goods, must disassemble, remove the iron and steel and other non-ferrous metal pieces that are connected with aluminium material, then make aluminium scrap material through operations such as cleaning, fragmentation, magnetic separation, oven dry.For the waste and old aluminum component of frivolous loose sheet, as the locking arm on automobile, gear axle sleeve and aluminium bits etc., suppress into bag with hydraulic pressure metal wrapping machine.For Aluminium Cable Steel Reinforced, first should be separated steel core, then aluminum steel is coiled into volume.
Existing process aluminium scrap processing and utilizing is worth not high, the complex process of aluminium scrap process.Aluminium scrap can not be reduced into aluminium block, can only be provided as AD powder etc.
Summary of the invention
The present invention is directed to a kind of scrap aluminum resources recycling utilization processing method that above-mentioned deficiency provides.
The present invention adopts following technical scheme:
A kind of scrap aluminum resources recycling utilization processing method of the present invention, step is as follows:
1) sifting machine of, being visited Japan by aluminium slag raw material screens; Filter out fines and coarse fodder;
2), by fines in step 1) enter sifting machine and carry out dusting cover, coarse fodder enters crusher to carry out fragmentation and obtains Lu, iron material;
3), step 2) in fines after dusting cover carry out deironing process, obtain converter raw material;
4), the converter raw material that Lu, iron material and step 3) after the fragmentation in step 2 obtain is not entered rotary kiln and carry out melting;
5) aluminium liquid and hot aluminium slag, is obtained after step 4) melting;
6), the aluminium liquid in step 5) is added Pure Silicon Metal carries out refining, ingot casting warehouse-in after refining again;
7), by the hot aluminium slag in step 4) carry out cooling process, cooled hot aluminium slag adds batching and carries out homogenizing process, obtains AD powder.
Scrap aluminum resources recycling utilization processing method of the present invention, described step 2) in dusting cover after adopt ball mill to carry out ball-milling technology process, then send to magnetic separator de-ironing in step 3) and carry out deironing process.
Scrap aluminum resources recycling utilization processing method of the present invention, ball mill again enters sifting machine and screens after carrying out ball-milling technology process, the aluminium ash obtained after screening obtains AD powder after adding batching homogenizing.
Scrap aluminum resources recycling utilization processing method of the present invention, the fines after described dusting cover carries out deironing process and obtains iron powder, pack warehouse-in.
Scrap aluminum resources recycling utilization processing method of the present invention, described refining employing heat accumulating type holding furnace, adds refining agent in refining process and nitrogen carries out refinery process.
Beneficial effect
The scrap aluminum resources recycling utilization processing method that the present invention adopts, can improve the utility value of aluminium scrap material, and the aluminium material after decomposing refining is carried out reprocessing acquisition AD powder.It is recycling that aluminium liquid after refining is shaped to aluminium ingot.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Specifically to have a try mode
For making the object of the embodiment of the present invention and technical scheme clearly, below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention:
A kind of scrap aluminum resources recycling utilization processing method, step is as follows:
1) sifting machine of, being visited Japan by aluminium slag raw material screens; Filter out fines and coarse fodder;
2), by fines in step 1) enter sifting machine and carry out dusting cover, coarse fodder enters crusher to carry out fragmentation and obtains Lu, iron material;
3), step 2) in fines after dusting cover carry out deironing process, obtain converter raw material;
4), the converter raw material that Lu, iron material and step 3) after the fragmentation in step 2 obtain is not entered rotary kiln and carry out melting;
5) aluminium liquid and hot aluminium slag, is obtained after step 4) melting;
6), the aluminium liquid in step 5) is added Pure Silicon Metal carries out refining, ingot casting warehouse-in after refining again;
7), by the hot aluminium slag in step 4) carry out cooling process, cooled hot aluminium slag adds batching and carries out homogenizing process, obtains AD powder.
Preferred version as scrap aluminum resources recycling utilization processing method of the present invention: described step 2) in dusting cover after adopt ball mill to carry out ball-milling technology process, then send to magnetic separator de-ironing in step 3) and carry out deironing process.
Preferred version as scrap aluminum resources recycling utilization processing method of the present invention: ball mill again enters sifting machine and screens after carrying out ball-milling technology process, the aluminium ash obtained after screening obtains AD powder after adding batching homogenizing.
Preferred version as scrap aluminum resources recycling utilization processing method of the present invention: the fines after described dusting cover carries out deironing process and obtains iron powder, pack warehouse-in.
Preferred version as scrap aluminum resources recycling utilization processing method of the present invention: described refining adopts heat accumulating type holding furnace, adds refining agent in refining process and nitrogen carries out refinery process.
AD powder has pure metallic aluminum, and AD powder uses and can replace SiC and part aluminium wire on refining furnace, and AD powder also can use when converter tapping, and oxygen can take off below 40ppm.
AD powder is in refining process, and AD powder can foam in one minute; The components such as CaO, Al2O3 and MgO can keep suitable temperature flowing and surface tension, and therefore submerged arc performance is good, heat-up rate fast, electrode power consumption significantly reduces.There is reduction reaction and generate the bubbles such as CO in the foaming mechanism of AD powder FeO, MnO, SiO2 etc. mainly in the carbon of high temperature lower electrode and AD powder in a small amount of carbon and slag.And add carbonate, as CaCO3, BaCO3 etc., because they just decompose completely at about 900 DEG C, under the refining temperature more than 1600 DEG C, by the limited time that carbonate decomposition foaming maintains.
AD powder removes steel inclusion.There is reductibility, slag system based on calcium aluminate, due to the viscosity under refining high temperature and surface tension, calcium oxide in easy absorption steel, particularly а-Al2O3 etc. are mixed in LF refining process, along with the stirring of bottom argon gas, steel inclusion float and adsorbed by AD powder.According to the difference of refining time, the inclusion total amount in steel generally can be made to decline more than 50%, and purify hot metal effect clearly, is applicable to the production of high-quality steel.In addition, to make the effect of white slag also good especially for AD powder.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1. a scrap aluminum resources recycling utilization processing method, is characterized in that: step is as follows:
1) sifting machine of, being visited Japan by aluminium slag raw material screens; Filter out fines and coarse fodder;
2), by fines in step 1) enter sifting machine and carry out dusting cover, coarse fodder enters crusher to carry out fragmentation and obtains Lu, iron material;
3), step 2) in fines after dusting cover carry out deironing process, obtain converter raw material;
4), the converter raw material that Lu, iron material and step 3) after the fragmentation in step 2 obtain is not entered rotary kiln and carry out melting;
5) aluminium liquid and hot aluminium slag, is obtained after step 4) melting;
6), the aluminium liquid in step 5) is added Pure Silicon Metal carries out refining, ingot casting warehouse-in after refining again;
7), by the hot aluminium slag in step 4) carry out cooling process, cooled hot aluminium slag adds batching and carries out homogenizing process, obtains AD powder.
2. the scrap aluminum resources recycling utilization processing method according to claims 1, is characterized in that: described step 2) in dusting cover after adopt ball mill to carry out ball-milling technology process, then send to magnetic separator de-ironing in step 3) and carry out deironing process.
3. the scrap aluminum resources recycling utilization processing method according to claims 1 or 2, is characterized in that: ball mill again enters sifting machine and screens after carrying out ball-milling technology process, and the aluminium ash obtained after screening obtains AD powder after adding batching homogenizing.
4. the scrap aluminum resources recycling utilization processing method according to claims 1, is characterized in that: the fines after described dusting cover carries out deironing process and obtains iron powder, pack warehouse-in.
5. the scrap aluminum resources recycling utilization processing method according to claims 1, is characterized in that: described refining adopts heat accumulating type holding furnace, adds refining agent and nitrogen carries out refinery process in refining process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510631834.7A CN105200237A (en) | 2015-09-29 | 2015-09-29 | Process method for regenerating and recycling aluminum scrap resources |
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| CN201510631834.7A CN105200237A (en) | 2015-09-29 | 2015-09-29 | Process method for regenerating and recycling aluminum scrap resources |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723475A (en) * | 2017-09-18 | 2018-02-23 | 湖北金洋资源股份公司 | Improve the method that aluminium recovery is regenerated in aluminium slag |
| CN108285949A (en) * | 2018-03-16 | 2018-07-17 | 青海源通工贸有限公司 | A kind of metal aluminium deoxidizer and preparation method thereof |
| CN108411167A (en) * | 2018-04-11 | 2018-08-17 | 江西万泰铝业有限公司 | A kind of technique using the miscellaneous aluminum material founding high-quality motorcar engine ingot casting of regenerated |
| CN110863112A (en) * | 2019-10-15 | 2020-03-06 | 东北大学 | Resource utilization method of aluminum slag generated in aluminum refining process |
Citations (4)
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|---|---|---|---|---|
| JPH0790346A (en) * | 1993-09-20 | 1995-04-04 | Oosuga Alum Kk | Manufacture of aluminum deoxidizer |
| CN103361487A (en) * | 2013-07-22 | 2013-10-23 | 南南铝业股份有限公司 | Production method of recycled aluminum |
| CN103382524A (en) * | 2013-07-22 | 2013-11-06 | 南南铝业股份有限公司 | Regenerating method of waste aluminum foil containing organic matters |
| CN103484684A (en) * | 2013-10-16 | 2014-01-01 | 普曦峻 | No-pollution treatment method of electrolytic aluminum smelting aluminum slag |
-
2015
- 2015-09-29 CN CN201510631834.7A patent/CN105200237A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790346A (en) * | 1993-09-20 | 1995-04-04 | Oosuga Alum Kk | Manufacture of aluminum deoxidizer |
| CN103361487A (en) * | 2013-07-22 | 2013-10-23 | 南南铝业股份有限公司 | Production method of recycled aluminum |
| CN103382524A (en) * | 2013-07-22 | 2013-11-06 | 南南铝业股份有限公司 | Regenerating method of waste aluminum foil containing organic matters |
| CN103484684A (en) * | 2013-10-16 | 2014-01-01 | 普曦峻 | No-pollution treatment method of electrolytic aluminum smelting aluminum slag |
Non-Patent Citations (1)
| Title |
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| 刘贤能等: ""铝炉渣处理技术的进展"", 《轻合金加工技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723475A (en) * | 2017-09-18 | 2018-02-23 | 湖北金洋资源股份公司 | Improve the method that aluminium recovery is regenerated in aluminium slag |
| CN108285949A (en) * | 2018-03-16 | 2018-07-17 | 青海源通工贸有限公司 | A kind of metal aluminium deoxidizer and preparation method thereof |
| CN108411167A (en) * | 2018-04-11 | 2018-08-17 | 江西万泰铝业有限公司 | A kind of technique using the miscellaneous aluminum material founding high-quality motorcar engine ingot casting of regenerated |
| CN110863112A (en) * | 2019-10-15 | 2020-03-06 | 东北大学 | Resource utilization method of aluminum slag generated in aluminum refining process |
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Application publication date: 20151230 |