CN103614561A - Energy-saving and cost-reducing technology for directly utilizing smelting of aluminium scraps - Google Patents
Energy-saving and cost-reducing technology for directly utilizing smelting of aluminium scraps Download PDFInfo
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- CN103614561A CN103614561A CN201310644811.0A CN201310644811A CN103614561A CN 103614561 A CN103614561 A CN 103614561A CN 201310644811 A CN201310644811 A CN 201310644811A CN 103614561 A CN103614561 A CN 103614561A
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to the field of waste metal recovery, and particularly relates to an energy-saving and cost-reducing technology for directly utilizing smelting of aluminium scraps. Two smelting procedures of smelting and utilizing secondary aluminium are replaced by one smelting procedure by virtue of changing the traditional secondary aluminium smelting technology, so as to finish the overall process from smelting to utilizing. Energy conservation and consumption reduction are greatly achieved by reducing two smelting procedures, and purifying and adding alloying components. The method provided by the invention not only is simple in flow, but also can be used for saving energy source, and reducing emission of wastes.
Description
Technical field
The present invention relates to waste metal and reclaim field, be specifically related to a kind of aluminium scrap and smelt the energy-saving and cost-reducing technique being directly used.
Background technology
Stage is in rapid economic development now, the overexploitation of resource and the exhaustion of resource become the bottleneck of containment development, and the annual a large amount of waste metals that produce are not if recycled, can cause serious pollution, the exhaustion of aggravation resource, so the recycling of waste metal now is more and more subject to the attention of various countries.Fact proved: the smelting of secondary smelting and traditional ore is compared, and energy-saving effect is obvious, the smelting process of steel scrap can be saved 74% the energy, reduces by 86% atmospheric pollution; The smelting of copper scrap can be saved 85% the energy; The smelting of aluminium scrap can reduce by 95% energy consumption; The smelting of scrap lead can reduce by 65% energy consumption.And the recovery of the aluminium scrap of reality, all often first Way of Remelting Scrap Aluminium to be removed to all impurity components, obtain comparatively pure aluminium and carry out ingot casting, the aluminium ingot of regeneration is sold to down-stream enterprise, according to product requirement, carry out secondary fusion and add alloying constituent, product is made in casting, and this twice fusing first removes alloy and supplement alloy prior again, waste energy serious, many alloying constituent resources are not rationally utilized.
Summary of the invention
For solving existing aluminium scrap, smelt the above-mentioned defect of recovery process, the invention provides a kind of aluminium scrap and smelt the energy-saving and cost-reducing technique being directly used.
The present invention is achieved through the following technical solutions:
Aluminium scrap is smelted the energy-saving and cost-reducing technique being directly used, and comprises the following steps:
Step 1: the aluminium scrap of collecting is dropped into magnet separator with conveying belt, carry out simple physical method deironing;
Step 2: aluminium scrap is carried out to artificial separation by different varieties, substantially the identical similar class of returning into;
Step 3: the aluminium scrap of sorting and grouping is dropped into smelting furnace fusing;
Step 4: utilize high temperature resistant (interior external cavity water cycle) calutron to carry out secondary removing to simple substance composition in aluminium scrap liquation by absorption;
Step 5: the aluminium scrap liquation sampling in smelting furnace is carried out to composition first and detect;
Step 6: according to detected result and the finished product recycling object, retain the alloying constituent that can improve secondary aluminum performance in aluminium scrap liquation, carry out chemical process removal of impurities to having a strong impact on the impurity component of end prod performance;
Step 7: sample secondary component and detect from the molten aluminum liquid chemical process removal of impurities, according to detected result, ask poor and fill a vacancy, by adding fine aluminium or alloying constituent, make secondary aluminum composition reach end prod requirement;
Step 8: the secondary aluminum liquation direct pouring product that adjusting is prepared.
A kind of aluminium scrap of the present invention is smelted the energy-saving and cost-reducing technique being directly used, it is characterized in that, the difference of asking in described step 7 is filled a vacancy, according to detected result, if crucial alloying constituent is too high, by adding fine aluminium, reduce associated alloys component content, if crucial alloying constituent is not enough, by adding alloy, improve content, on directly not affecting other alloying constituent height of end product performance, do not adjust.
Beneficial effect of the present invention: method provided by the invention not only flow process is simple, removes impurity iron to greatest extent, improves secondary aluminum quality, repeatedly melting changes melting once into, and it is abundant to make full use of alloy, reduced the discharge of refuse, energy conservation and consumption reduction effects is obvious.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
Aluminium scrap is smelted the energy-saving and cost-reducing technique being directly used, and comprises the following steps:
Aluminium scrap is smelted the energy-saving and cost-reducing technique being directly used, and comprises the following steps:
Step 1: the aluminium scrap of collecting is dropped into magnet separator with conveying belt, carry out simple physical method deironing;
Step 2: aluminium scrap is carried out to artificial separation by different varieties, substantially the identical similar class of returning into;
Step 3: the aluminium scrap of sorting and grouping is dropped into smelting furnace fusing;
Step 4: utilize high temperature resistant (interior external cavity water cycle) calutron to carry out secondary removing to simple substance composition in aluminium scrap liquation by absorption;
Step 5: the aluminium scrap liquation sampling in smelting furnace is carried out to composition first and detect;
Step 6: according to detected result and the finished product recycling object, retain the alloying constituent that can improve secondary aluminum performance in aluminium scrap liquation, carry out chemical process removal of impurities to having a strong impact on the impurity component of end prod performance;
Step 7: sample secondary component and detect from the molten aluminum liquid chemical process removal of impurities, according to detected result, ask poor and fill a vacancy, by adding fine aluminium or alloying constituent, make secondary aluminum composition reach end prod requirement;
Step 8: the secondary aluminum liquation direct pouring product that adjusting is prepared.
A kind of aluminium scrap of the present invention is smelted the energy-saving and cost-reducing technique being directly used, it is characterized in that, the difference of asking in described step 7 is filled a vacancy, according to detected result, if crucial alloying constituent is too high, by adding fine aluminium, reduce associated alloys component content, if crucial alloying constituent is not enough, by adding alloy, improve content, on directly not affecting other alloying constituent height of end product performance, do not adjust.
The secondary aluminum product of for example casting for electric vehicle hub, because impurity iron fragility is large, so product requirement impurity iron composition can not be higher than 1%, to wheel hub product performance, not only negative impact is less as magnesium, zinc, manganese, titanium etc. for other alloying constituents, and can enhance product performance, and manganese can improve hardness, titanium can improve tensile strength, magnesium can reduce proportion, thus need not carry out again numerous and diverse processing that removes, thus realize energy-saving and cost-reducing.
Claims (2)
1. aluminium scrap is smelted the energy-saving and cost-reducing technique being directly used, and it is characterized in that, comprises the following steps:
Step 1: the aluminium scrap of collecting is dropped into magnet separator with conveying belt, carry out simple physical method deironing;
Step 2: aluminium scrap is carried out to artificial separation by different varieties, substantially the identical similar class of returning into;
Step 3: the aluminium scrap of sorting and grouping is dropped into smelting furnace fusing;
Step 4: utilize high temperature resistant (interior external cavity water cycle) calutron to carry out secondary removing to simple substance composition in aluminium scrap liquation by absorption;
Step 5: the aluminium scrap liquation sampling in smelting furnace is carried out to composition first and detect;
Step 6: according to detected result and the finished product recycling object, retain the alloying constituent that can improve secondary aluminum performance in aluminium scrap liquation, carry out chemical process removal of impurities to having a strong impact on the impurity component of end prod performance;
Step 7: sample secondary component and detect from the molten aluminum liquid chemical process removal of impurities, according to detected result, ask poor and fill a vacancy, by adding fine aluminium or alloying constituent, make secondary aluminum composition reach end prod requirement;
Step 8: the secondary aluminum liquation direct pouring product that adjusting is prepared.
2. a kind of aluminium scrap according to claim 1 is smelted the energy-saving and cost-reducing technique being directly used, it is characterized in that, the difference of asking in described step 7 is filled a vacancy, according to detected result, if crucial alloying constituent is too high, by adding fine aluminium, reduce associated alloys component content, if crucial alloying constituent is not enough, by adding alloy, improve content, on directly not affecting other alloying constituent height of end product performance, do not adjust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310644811.0A CN103614561A (en) | 2013-12-05 | 2013-12-05 | Energy-saving and cost-reducing technology for directly utilizing smelting of aluminium scraps |
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| CN201310644811.0A CN103614561A (en) | 2013-12-05 | 2013-12-05 | Energy-saving and cost-reducing technology for directly utilizing smelting of aluminium scraps |
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| CN103614561A true CN103614561A (en) | 2014-03-05 |
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| CN201310644811.0A Pending CN103614561A (en) | 2013-12-05 | 2013-12-05 | Energy-saving and cost-reducing technology for directly utilizing smelting of aluminium scraps |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108615960A (en) * | 2018-04-20 | 2018-10-02 | 东深金属燃料动力实验室有限责任公司 | The method that aluminium hydroxide is produced using discarded aluminium |
Citations (6)
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|---|---|---|---|---|
| JPH04224638A (en) * | 1990-12-26 | 1992-08-13 | Nippon Steel Corp | Method for utilizing organic waste as heat source for producing molten iron |
| US5286274A (en) * | 1991-11-07 | 1994-02-15 | Elkem Technology A/S | Method for treatment of potlining residue from primary aluminium smelters |
| CN101381814A (en) * | 2008-09-28 | 2009-03-11 | 姚仁祥 | Method for preparing rare-earth aluminum silicon alloy by waste aluminum recovery and rare-earth aluminum silicon alloy thereof |
| CN102094120A (en) * | 2011-03-16 | 2011-06-15 | 湖南江滨机器（集团）有限责任公司 | Process for recovering aluminum scraps |
| CN102304619A (en) * | 2011-08-26 | 2012-01-04 | 刘济华 | Method for producing directly-molten aluminum by using aluminum scraps |
| CN103361487A (en) * | 2013-07-22 | 2013-10-23 | 南南铝业股份有限公司 | Production method of recycled aluminum |
-
2013
- 2013-12-05 CN CN201310644811.0A patent/CN103614561A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04224638A (en) * | 1990-12-26 | 1992-08-13 | Nippon Steel Corp | Method for utilizing organic waste as heat source for producing molten iron |
| US5286274A (en) * | 1991-11-07 | 1994-02-15 | Elkem Technology A/S | Method for treatment of potlining residue from primary aluminium smelters |
| CN101381814A (en) * | 2008-09-28 | 2009-03-11 | 姚仁祥 | Method for preparing rare-earth aluminum silicon alloy by waste aluminum recovery and rare-earth aluminum silicon alloy thereof |
| CN102094120A (en) * | 2011-03-16 | 2011-06-15 | 湖南江滨机器（集团）有限责任公司 | Process for recovering aluminum scraps |
| CN102304619A (en) * | 2011-08-26 | 2012-01-04 | 刘济华 | Method for producing directly-molten aluminum by using aluminum scraps |
| CN103361487A (en) * | 2013-07-22 | 2013-10-23 | 南南铝业股份有限公司 | Production method of recycled aluminum |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108615960A (en) * | 2018-04-20 | 2018-10-02 | 东深金属燃料动力实验室有限责任公司 | The method that aluminium hydroxide is produced using discarded aluminium |
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Application publication date: 20140305 |