CN102392135A - Harmful element removal method for green regeneration of aluminum scrap - Google Patents
Harmful element removal method for green regeneration of aluminum scrap Download PDFInfo
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- CN102392135A CN102392135A CN2011103580005A CN201110358000A CN102392135A CN 102392135 A CN102392135 A CN 102392135A CN 2011103580005 A CN2011103580005 A CN 2011103580005A CN 201110358000 A CN201110358000 A CN 201110358000A CN 102392135 A CN102392135 A CN 102392135A
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- aluminium
- aluminum scrap
- scrap
- removal method
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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
Abstract
The invention which provides a harmful element removal method for the green regeneration of aluminum scrap relates to the technical field of aluminum scrap regeneration recovery. The method is characterized in that: the aluminum scrap is smelted to 670-700DEG C for 5-20min, and is subjected to component analysis; a lead removal agent, a zinc removal agent, a magnesium removal agent and a manganese removal agent are added to the aluminum scrap; and the agents and the aluminum scrap are stirred and co-smelted. The method of the invention, which can effectively remove superfluous harmful elements of lead, zinc, magnesium, manganese and the like from aluminum alloy, allows the removal rate to reach above 90%, contents of the harmful elements to be reduced to be lower than international standards, the profit of each ton to be directly improved to 3000-5000yuan, the resource utilization rate to be improved, and environment to be protected.
Description
Technical field
The present invention relates to aluminium scrap renewable resource technical field, be specifically related to a kind of harmfulization of aluminium scrap green regenerating element removal method.
Background technology
Aluminium is the closely-related base mateiral of industrial development and people's lives; Be widely used in all respects of national economy; Because the people's environmental protection meaning and the recycling economy meaning progressively improve, secondary aluminum more and more receives country and payes attention to, but the problem of environmental pollution that aluminium exists in the regeneration link; Harmful element too high levels in the secondary aluminum is seriously restricting the existence of secondary aluminum industry and application widely.Aluminium scrap regeneration is at present generally taked carrying out high melt after the elementary sorting of aluminium scrap at home; Fully claw other damascene parts after the melting; The aluminium ingot of casting then, the regeneration aluminium ingot harmful element too high levels of production, regeneration aluminium ingot per ton only has the profit margin of 500-800 unit.Harmful element wherein mainly contains metallic elements such as lead, zinc, magnesium, manganese, and is difficult to remove, and makes the quality of aluminium ingot not increase.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and can the harmful element in the aluminium ingot be removed, and improves harmfulization of the aluminium scrap green regenerating element removal method of aluminium ingot quality.
Technical problem to be solved by this invention adopts following technical scheme to realize,
A kind of harmfulization of aluminium scrap green regenerating element removal method is characterized in that:, after melting 5-20 minute, through the composition assay, add deleading agent, dezincification agent again, remove magnesia mixture and demanganization agent and aluminium scrap stirring consolute to 670-700 ℃ in Way of Remelting Scrap Aluminium.
Described deleading agent, dezincification agent, remove magnesia mixture and the demanganization agent is a lumphy structure, place aluminium liquid 3/5 depths to get final product with the refining frame.
Described deleading agent, dezincification agent, the addition that removes magnesia mixture and demanganization agent add 2-5kg respectively by aluminium scrap per ton.
The invention has the beneficial effects as follows: the present invention can effectively remove harmful elements such as lead unnecessary in the duraluminum, zinc, magnesium, manganese; Clearance reaches more than 90%, and harmful element is reduced to below the international standard, and profit per ton directly rises to 3000-5000 unit; Improve the utilization ratio of resource, the protection environment.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A kind of harmfulization of aluminium scrap green regenerating element removal method; Send into smelting furnace after at first the aluminium scrap spare after the sorting being prepared burden and carry out melting; In Way of Remelting Scrap Aluminium during to 670-700 ℃; After the melting 15 minutes,, add deleading agent, dezincification agent again, remove magnesia mixture and demanganization agent and aluminium scrap stirring consolute through the composition assay; By aluminium scrap per ton add respectively 3kg deleading agent, dezincification agent, remove magnesia mixture and demanganization agent, and with blocky deleading agent, dezincification agent, remove magnesia mixture and the demanganization agent places aluminium liquid 3/5 depths to get final product with the refining frame.
The present invention adopts low smelting heat when sorting classifying melting aluminium scrap; Temperature is controlled at the above 30-100 of duraluminum liquidus temperature ℃ scope melting; Adding is melted mutually with duraluminum and can be combined with harmful element lead, zinc, magnesium, manganese in fusion process; From duraluminum, separate, thereby make aluminium alloy melt generation qualitative change function, harmful element is reduced to (Pb≤0.09% below the international standard; Zn≤0.08%; Mg≤0.2%; Mn≤0.18%), be applied to the aluminium ingot that the aluminium scrap green regenerating melts out, quality is higher than international standard, and pure profit per ton directly rises to 3000-5000 unit.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification sheets just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. harmfulization of aluminium scrap green regenerating element removal method is characterized in that:, after melting 5-20 minute, through the composition assay, add deleading agent, dezincification agent again, remove magnesia mixture and demanganization agent and aluminium scrap stirring consolute to 670-700 ℃ in Way of Remelting Scrap Aluminium.
2. harmfulization of aluminium scrap green regenerating element removal method according to claim 1 is characterized in that: described deleading agent, dezincification agent, remove magnesia mixture and the demanganization agent is a lumphy structure, place aluminium liquid 3/5 depths to get final product with the refining frame.
3. harmfulization of aluminium scrap green regenerating element removal method according to claim 1 is characterized in that: described deleading agent, dezincification agent, the addition that removes magnesia mixture and demanganization agent add 2-5kg respectively by aluminium scrap per ton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103580005A CN102392135A (en) | 2011-11-11 | 2011-11-11 | Harmful element removal method for green regeneration of aluminum scrap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103580005A CN102392135A (en) | 2011-11-11 | 2011-11-11 | Harmful element removal method for green regeneration of aluminum scrap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102392135A true CN102392135A (en) | 2012-03-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103580005A Pending CN102392135A (en) | 2011-11-11 | 2011-11-11 | Harmful element removal method for green regeneration of aluminum scrap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392135A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725898A (en) * | 2013-12-23 | 2014-04-16 | 安徽省金盈铝业有限公司 | Energy-saving environment-friendly new technique for refining scrap aluminum by direct reutilization |
| CN104674010A (en) * | 2015-01-21 | 2015-06-03 | 界首市金鹰金属科技有限公司 | Method for removing green renewable harmful elements of aluminum scrap |
| CN106011479A (en) * | 2016-06-28 | 2016-10-12 | 安徽华翼金属集团有限公司 | Efficient and energy-saving regenerative refining technology for aluminum scrap |
| CN114231756A (en) * | 2021-12-20 | 2022-03-25 | 四川省有色冶金研究院有限公司 | Method for removing impurities in waste aluminum |
-
2011
- 2011-11-11 CN CN2011103580005A patent/CN102392135A/en active Pending
Non-Patent Citations (4)
| Title |
|---|
| 《中国物资再生》 19921231 蔡艳秀等 "用废杂铝生产优质铸造铝合金" 第17-19页 1-3 , 第5期 * |
| 《冶金丛刊》 20090630 聂铁安 "再生铝合金熔炼工艺技术" 第47-50页 1-3 , 第3期 * |
| 聂铁安: ""再生铝合金熔炼工艺技术"", 《冶金丛刊》 * |
| 蔡艳秀等: ""用废杂铝生产优质铸造铝合金"", 《中国物资再生》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725898A (en) * | 2013-12-23 | 2014-04-16 | 安徽省金盈铝业有限公司 | Energy-saving environment-friendly new technique for refining scrap aluminum by direct reutilization |
| CN104674010A (en) * | 2015-01-21 | 2015-06-03 | 界首市金鹰金属科技有限公司 | Method for removing green renewable harmful elements of aluminum scrap |
| CN106011479A (en) * | 2016-06-28 | 2016-10-12 | 安徽华翼金属集团有限公司 | Efficient and energy-saving regenerative refining technology for aluminum scrap |
| CN106011479B (en) * | 2016-06-28 | 2018-01-12 | 安徽华翼金属集团有限公司 | The energy-efficient regeneration refinery practice of aluminium scrap |
| CN114231756A (en) * | 2021-12-20 | 2022-03-25 | 四川省有色冶金研究院有限公司 | Method for removing impurities in waste aluminum |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120328 |