CN103255293A - Recycling method of aluminum slags generated during aluminum alloy melting process, recycled molten aluminum and application thereof - Google Patents
Recycling method of aluminum slags generated during aluminum alloy melting process, recycled molten aluminum and application thereof Download PDFInfo
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- CN103255293A CN103255293A CN2013101546827A CN201310154682A CN103255293A CN 103255293 A CN103255293 A CN 103255293A CN 2013101546827 A CN2013101546827 A CN 2013101546827A CN 201310154682 A CN201310154682 A CN 201310154682A CN 103255293 A CN103255293 A CN 103255293A
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- 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 discloses a recycling method of aluminum slags generated during an aluminum alloy melting process. The method comprises the following steps of: pretreatment; refining; modification and refinement; ingredient proportioning; degassing; and slag removing and ash eliminating. According to the method, by performing the pretreatment, the refining, the modification and refinement the ingredient proportioning, the degassing, the slag removing and the ash eliminating and the like on the aluminum slags, the deterioration and refinement functions are performed effectively, so that the purity degree of the recycled molten aluminum slag melt is improved; and by performing the ingredient proportioning, the obvious refinement effect is obtained, i.e., the air absorption by the alloy is reduced, so that the liquidity of the aluminum alloy melt is improved. Therefore, the quality of a down-stream product is improved. The invention further relates to a recycled molten aluminum and an application thereof.
Description
Technical field
The invention belongs to novel material-field of metallurgy, be specifically related to the aluminium slag recovery method that produces in a kind of aluminum alloy melting process, use aluminium liquid that this method reclaims and the application of this recovery aluminium liquid.
Background technology
Along with the fast development of aluminium alloy deep processing enterprise, aluminium alloy processing enterprise has produced a large amount of aluminum dross in the aluminium alloy smelting process, and these aluminum dross are used as the industrial refuse processing by enterprise usually, have not only polluted environment but also resource has been caused great waste.Even there is part enterprise that aluminum dross is reclaimed, also immature because of its technology, the rate of recovery is low and cause a series of problems such as secondary pollution.
Summary of the invention
The present invention is intended to solve the problems of the technologies described above at least to a certain extent.
First goal of the invention of the present invention provides the aluminium slag smelting technique that produces in a kind of quick recovery aluminum alloy melting process, it not only can effectively play deslagging and outgassing, improve the purity that reclaims the aluminum dross liquation, and carry out rotten after the proportioning components, thinning effect is remarkable, it is air-breathing to reduce alloy, can improve the flowability of molten aluminium alloy, improve the quality of derived product.
Second goal of the invention of the present invention is to provide a kind of recovery aluminium liquid that utilizes aforesaid method to reclaim the aluminium slag.
The 3rd goal of the invention of the present invention is to provide a kind of application of above-mentioned recovery aluminium liquid.
For realizing first goal of the invention of the present invention, the present invention adopts following technical scheme, and the aluminium slag recovery method that produces in a kind of aluminum alloy melting process may further comprise the steps:
S1. pre-treatment: with the aluminium slag that produces in the aluminum alloy melting process carry out impurity elimination, ball milling successively, beat sieve, screening, magneticseparation handle;
S2. refining: with pretreated aluminium slag fusing, when temperature arrives 720-750 ℃, in aluminium liquid, add refining agent, carry out refining by 99.9% nitrogen;
S3. rotten and refinement: add al-sr alloy in the aluminium liquid after the refining, aluminium liquid go bad reaches thinning processing;
S4. proportioning components: analysis of components is carried out in sampling to the aluminium liquid after rotten and the refinement, adds A00 aluminium ingot, 75 titanium additives, magnesium ingot at temperature of aluminum liquid during at 730-750 ℃, meets the requirements until aluminium liquid composition;
S5. degasification: be blown into nitrogen by porous plug in the aluminium liquid and carry out degasification;
S6. slagging-off is scratched in the ashes: add slagging agent and carry out slag hitting in aluminium liquid, and the slag of getting is pulled out, the static back of aluminium liquid insulation is stand-by.
The present invention with the aluminium slag through pre-treatment, refining, rotten and refinement, proportioning components, degasification, slagging-off a series of processes such as scratch in the ashes, effectively play deslagging and outgassing, improve the purity that reclaims the aluminum dross liquation, and carry out rotten after the proportioning components, thinning effect is remarkable, it is air-breathing to reduce alloy, can improve the flowability of molten aluminium alloy, improve the quality of derived product.
Preferred version of the present invention, in step S4, finish composition proportion after each components contents for by weight: Mg content is 0.25-0.45%; Titanium content is 0.10-0.20%; Silicone content is 6.5-7.5%; The content of strontium is the 0.005-0.015% of aluminium liquid weight.
Preferred version of the present invention is the rotation porous plug at porous plug described in the step S5.
The present invention further improves and is, refining temperature is 700-720 ℃ during degasification in step S5, and nitrogen flow is 0.8-1.12 cubic meters/hour, and the control of rotation porous plug rotating speed is at 450 ± 50 rev/mins, and nitrogen bubble is controlled at diameter 1-3mm.
For realizing second goal of the invention of the present invention, the invention provides a kind of aluminium liquid that aforesaid method reclaims of using.
For realizing the 3rd goal of the invention of the present invention, described aluminium liquid the best is used in 30-45 minute after recovery is finished.
The invention has the beneficial effects as follows, can effectively remove impurity and obnoxious flavour in the aluminum dross, improve the purity that aluminium alloy reclaims liquation, and through after modifying-refining and the degasification, improved the mechanical property of molten aluminium alloy cast article.
Embodiment
Describe working process of the present invention and principle of work below in detail.
The refining agent that adopts among the present invention, A00 aluminium ingot, 75 titanium additives, magnesium ingot are on the market the conventional product of selling and get final product.What specifically adopt is refining agent, 75 titanium additives that the permanent good melt material products factory in Wendeng City, Shandong is produced.The magnesium ingot that the A00 aluminium ingot of Guizhou Aluminum Factory production and Wenxi County, Shanxi silver light magnesium are already produced.
Embodiment 1
Handle according to the following steps:
S1. pre-treatment: with 10 kilograms of the aluminium slags that produce in the aluminum alloy melting process carry out impurity elimination, ball milling successively, beat sieve, screening, magneticseparation handle;
S2. refining: pretreated aluminium slag is dropped into crucible melting, when temperature reaches 720 ° in stove, in aluminium liquid, add 1 kilogram of refining agent, feed 99.9% nitrogen and carry out refining;
S3. rotten and refinement: add 1.1 kilograms on 10% al-sr alloy ingot in the aluminium liquid after the refining, aluminium liquid go bad reaches thinning processing;
S4. proportioning components: analysis of components is carried out in sampling to the aluminium liquid after rotten and the refinement, and aluminium content is 91.3%; Mg content is 0.005%; Titanium content is 0.18%; Silicone content is 8.0%; In aluminium liquid, add 90 kilograms of A00 aluminium ingots, 2.7 kilograms of magnesium ingots; Detect: aluminium content is 92.05% again; Mg content is 0.26%; Titanium content is 0.10%; Content of strontium is 0.005%; Silicone content is 7.2%.
S5. degasification: be blown into nitrogen by rotation porous plug (Guangdong Wanfeng Motorcycle Wheel Co., Ltd.'s production) in the aluminium liquid and carry out degasification; Refining temperature is 700 ℃ during degasification, and nitrogen flow is 0.8 cubic meters/hour, and the control of rotation porous plug rotating speed is at 420 rev/mins, and nitrogen bubble is controlled at diameter 1-3mm.
S6. slagging-off is scratched in the ashes: add slagging agent and carry out slag hitting for 1 kilogram in aluminium liquid, and the slag of getting is pulled out.
Utilize above-mentioned aluminium liquid casting hub of motorcycle, after testing, the mechanical performance index of wheel hub is tensile strength 279.3Mpa, and unit elongation 7.6% meets hub of motorcycle and makes requirement.
Embodiment 2
Handle according to the following steps:
S1. pre-treatment: with 10 kilograms of the aluminium slags that produce in the aluminum alloy melting process carry out impurity elimination, ball milling successively, beat sieve, screening, magneticseparation handle;
S2. refining: pretreated aluminium slag is dropped into crucible melting, and temperature is to add 1 kilogram of refining agent in the 730 degree aluminium liquid in stove, feeds 99.9% nitrogen and carries out refining;
S3. rotten and refinement: add 1.3 kilograms on 10% al-sr alloy ingot in the aluminium liquid after the refining, aluminium liquid go bad reaches thinning processing;
S4. proportioning components: analysis of components is carried out in sampling to the aluminium liquid after rotten and the refinement, and aluminium content is 91.1%; Mg content is 0.004%; Titanium content is 0.19%; Silicone content is 8.1%; In aluminium liquid, add 90 kilograms of A00 aluminium ingots, 0.02 kilogram of 75 titanium additives; 3 kilograms of magnesium ingots; Detect: aluminium content is 92.05% again; Mg content is 0.32%; Titanium content is 0.17%; Content of strontium is 0.011%; Silicone content is 7.0%.
S5. degasification: be blown into nitrogen by rotation porous plug (Guangdong Wanfeng Motorcycle Wheel Co., Ltd.'s production) in the aluminium liquid and carry out degasification; Refining temperature is 710 ℃ during degasification, and nitrogen flow is 1 cubic meters/hour, and the control of rotation porous plug rotating speed is at 450 rev/mins, and nitrogen bubble is controlled at diameter 1-3mm.
S6. slagging-off is scratched in the ashes: add slagging agent and carry out slag hitting for 1 kilogram in aluminium liquid, and the slag of getting is pulled out.
Utilize above-mentioned aluminium liquid casting hub of motorcycle, after testing, the mechanical performance index of wheel hub is tensile strength 279.3Mpa, and unit elongation 7.6% meets hub of motorcycle and makes requirement.
Embodiment 3
Handle according to the following steps:
S1. pre-treatment: with 10 kilograms of the aluminium slags that produce in the aluminum alloy melting process carry out impurity elimination, ball milling successively, beat sieve, screening, magneticseparation handle;
S2. refining: pretreated aluminium slag is dropped into crucible melting, and temperature is to add 1 kilogram of refining agent in the 750 aluminium liquid in stove, feeds 99.9% nitrogen and carries out refining;
S3. rotten and refinement: add 1.33 kilograms on 10% al-sr alloy ingot in the aluminium liquid after the refining, aluminium liquid go bad reaches thinning processing;
S4. proportioning components: analysis of components is carried out in sampling to the aluminium liquid after rotten and the refinement, and aluminium content is 91.5%; Mg content is 0.003%; Titanium content is 0.16%; Silicone content is 7.9%; In aluminium liquid, add 90 kilograms of A00 aluminium ingots, 0.05 kilogram of 75 titanium additives; 3.2 kilograms of magnesium ingots; Detect: aluminium content is 92.05% again; Mg content is 0.41%; Titanium content is 0.19%; Content of strontium is 0.015%; Silicone content is 6.6%.
S5. degasification: be blown into nitrogen by rotation porous plug (Guangdong Wanfeng Motorcycle Wheel Co., Ltd.'s production) in the aluminium liquid and carry out degasification; Refining temperature is 720 ℃ during degasification, and nitrogen flow is 1.1 cubic meters/hours, and the control of rotation porous plug rotating speed is at 500 rev/mins, and nitrogen bubble is controlled at diameter 1-3mm.
S6. slagging-off is scratched in the ashes: add slagging agent and carry out slag hitting for 1 kilogram in aluminium liquid, and the slag of getting is pulled out.
Utilize above-mentioned aluminium liquid casting hub of motorcycle, after testing, the mechanical performance index of wheel hub is tensile strength 279.3Mpa, and unit elongation 7.6% meets hub of motorcycle and makes requirement.
Claims (7)
1. the recovery method of the aluminium slag that produces in the aluminum alloy melting process is characterized in that, may further comprise the steps:
S1. pre-treatment: with the aluminium slag that produces in the aluminum alloy melting process carry out impurity elimination, ball milling successively, beat sieve, screening, magneticseparation handle;
S2. refining: with pretreated aluminium slag fusing, when temperature arrives 720-750 ℃, in aluminium liquid, add refining agent, feed nitrogen and carry out refining;
S3. rotten and refinement: add al-sr alloy in the aluminium liquid after the refining, aluminium liquid go bad reaches thinning processing;
S4. proportioning components: analysis of components is carried out in sampling to the aluminium liquid after rotten and the refinement, adds A00 aluminium ingot, 75 titanium additives, magnesium ingot during at 730-750 ℃ at temperature of aluminum liquid;
S5. degasification: be blown into nitrogen by porous plug in the aluminium liquid and carry out degasification;
S6. slagging-off is scratched in the ashes: add slagging agent and carry out slag hitting in aluminium liquid, and the slag of getting is pulled out, the static back of aluminium liquid insulation is stand-by.
2. the recovery method of the aluminium slag that produces in the aluminum alloy melting process according to claim 1 is characterized in that, is 99.9% in the concentration of nitrogen described in the step S2.
3. the recovery method of the aluminium slag that produces in the aluminum alloy melting process according to claim 1 is characterized in that, in step S4, finish composition proportion after each components contents for by weight: Mg content is 0.25-0.45%; Titanium content is 0.10-0.20%; Silicone content is 6.5-7.5%; The content of strontium is the 0.005-0.015% of aluminium liquid weight.
4. the recovery method of the aluminium slag that produces in the aluminum alloy melting process according to claim 1 is characterized in that, is the rotation porous plug at porous plug described in the step S5.
5. the recovery method of the aluminium slag that produces in the aluminum alloy melting process according to claim 4, it is characterized in that, the temperature of aluminium liquid is 700-720 ℃ during degasification in step S5, nitrogen flow is 0.8-1.12 cubic meters/hour, the control of rotation porous plug rotating speed is at 450 ± 50 rev/mins, and the nitrogen bubble diameter is 1-3mm.
6. an application rights requires the aluminium liquid that the arbitrary described recovery method of 1-5 reclaims.
7. the application of aluminium liquid according to claim 6 is characterized in that, described aluminium liquid the best is used in 30-45 minute after recovery is finished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310154682.7A CN103255293B (en) | 2013-04-28 | 2013-04-28 | Recycling method of aluminum slags generated during aluminum alloy melting process, recycled molten aluminum and application thereof |
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| CN201310154682.7A CN103255293B (en) | 2013-04-28 | 2013-04-28 | Recycling method of aluminum slags generated during aluminum alloy melting process, recycled molten aluminum and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484684A (en) * | 2013-10-16 | 2014-01-01 | 普曦峻 | No-pollution treatment method of electrolytic aluminum smelting aluminum slag |
| CN108624789A (en) * | 2017-03-17 | 2018-10-09 | 天津金鹏铝材制造有限公司 | A kind of production technology of aluminium alloy ingots |
| CN109457133A (en) * | 2018-11-22 | 2019-03-12 | 昆山市超群金属制品有限公司 | A kind of and grain refining efficiency high-efficiency refining agent and its manufacturing method |
| CN111074079A (en) * | 2020-02-26 | 2020-04-28 | 佛山市和阳精密金属制品有限公司 | Preparation method of aluminum melt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653825A (en) * | 2011-03-01 | 2012-09-05 | 赵凯志 | Aluminum alloy wheel hub cutting scrap recycling and smelting process |
| CN102703739A (en) * | 2012-07-03 | 2012-10-03 | 遂宁市新华西铝业有限公司 | Production process of recycled aluminum |
| CN102912140A (en) * | 2012-07-26 | 2013-02-06 | 北京科技大学 | Method for recycling waste aluminum ring-pull cans in green circular relegation way |
| CN102925763A (en) * | 2011-08-11 | 2013-02-13 | 赵凯志 | Aluminum alloy automobile wheel hub composite reinforcement technology |
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2013
- 2013-04-28 CN CN201310154682.7A patent/CN103255293B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653825A (en) * | 2011-03-01 | 2012-09-05 | 赵凯志 | Aluminum alloy wheel hub cutting scrap recycling and smelting process |
| CN102925763A (en) * | 2011-08-11 | 2013-02-13 | 赵凯志 | Aluminum alloy automobile wheel hub composite reinforcement technology |
| CN102703739A (en) * | 2012-07-03 | 2012-10-03 | 遂宁市新华西铝业有限公司 | Production process of recycled aluminum |
| CN102912140A (en) * | 2012-07-26 | 2013-02-06 | 北京科技大学 | Method for recycling waste aluminum ring-pull cans in green circular relegation way |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484684A (en) * | 2013-10-16 | 2014-01-01 | 普曦峻 | No-pollution treatment method of electrolytic aluminum smelting aluminum slag |
| CN103484684B (en) * | 2013-10-16 | 2015-03-25 | 普曦峻 | No-pollution treatment method of electrolytic aluminum smelting aluminum slag |
| CN108624789A (en) * | 2017-03-17 | 2018-10-09 | 天津金鹏铝材制造有限公司 | A kind of production technology of aluminium alloy ingots |
| CN109457133A (en) * | 2018-11-22 | 2019-03-12 | 昆山市超群金属制品有限公司 | A kind of and grain refining efficiency high-efficiency refining agent and its manufacturing method |
| CN111074079A (en) * | 2020-02-26 | 2020-04-28 | 佛山市和阳精密金属制品有限公司 | Preparation method of aluminum melt |
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| CN103255293B (en) | 2015-06-03 |
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