CN102021349A - Secondary aluminum production process - Google Patents
Secondary aluminum production process Download PDFInfo
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- CN102021349A CN102021349A CN2010105709497A CN201010570949A CN102021349A CN 102021349 A CN102021349 A CN 102021349A CN 2010105709497 A CN2010105709497 A CN 2010105709497A CN 201010570949 A CN201010570949 A CN 201010570949A CN 102021349 A CN102021349 A CN 102021349A
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- aluminium
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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 secondary aluminum production process, relating to the waste aluminum smelting process field. The secondary aluminum production process is characterized in that the specific process flows are as follows: prefabricating a waste aluminum material, namely performing primary classification and disassembly on waste aluminum and removing other non-ferrous metal parts; selecting minor ingredients and calculating the dosages of various materials according to demands; smelting, namely sending the prepared waste aluminum material in a smelting furnace to smelt; introducing the smelted aluminum melt in a refining purification furnace to refine; detecting aluminum melt with a spectrograph, analyzing the contents of various chemical elements; using the refined aluminum melt to perform casting moulding; inspecting the finished products to ensure that the chemical element contents of the products all meet the national standard; and bundling up the qualified products, packaging and warehousing. The invention has the following beneficial effects: the secondary aluminum production process has the advantages of low energy consumption, fewer emissions and is resource-saving, and waste aluminum can be used to synthesize aluminum alloy ingots in one step which meet the national standards and are used for pressure casting and casting.
Description
Technical field:
The present invention relates to Way of Remelting Scrap Aluminium complete processing field, specifically is a kind of secondary aluminum production technique.
Background technology:
Aluminium is the present metal of consumption maximum except that iron and steel in the world.Since China's reform and opening-up, aluminium industry has obtained development at full speed.
The use range of aluminium is very extensive, and aluminium, aluminium alloy genus almost do not have can't be obtained in all trades and professions.Along with the increase of aluminium output, usage quantity, discarded aluminum products amount is also increasing, and many aluminum products are disposable uses, and it is shorter to use the time ratio that loses use value from product.Therefore, these discarded aluminum products, the assorted material of aluminium just may become the source of pollution.How discarded aluminium utilizes the regeneration problem to become very urgent.Aluminium to becoming metal, arrives the cost of goods manufactured height from ore again, power consumption is big.Only electrolysis one procedure is produced one ton of metallic aluminium and is just needed the 13000-15000 degree.And by discarded metal aluminium regeneration, again with energy consumption, supplementary product onsumption are reduced greatly, economize on resources, cost.Therefore, the recovery of discarded aluminium, utilize again, no matter from economize on resources, energy efficient and cost, shorten the production cycle, still, all be significant from environmental protection, aspect such as improve the ecological environment.
The melting equipment of secondary aluminum is similar to primary aluminium.Molten aluminium stove has reverberatory furnace, induction furnace, resistance furnace etc.In recent years, developed country has constantly released a series of new technological innovation behaves aborning, as continuous smelting cheaply and treatment process, can make low-grade useless assorted aluminium upgrading, is used to make for casting, die casting, regeneration aluminium ingot rolling and that use as mother alloy.
From present production technique, in the regenerative process of aluminium scrap, be to guarantee secondary aluminum metallurgical quality critical process for the melting of secondary aluminum and the processing of melt.Rotten and the refining of molten aluminium purifies, and not only can change the form of silicon in the aluminum silicon alloy, has purified molten aluminium, and can improve the performance of aluminium alloy greatly.
Summary of the invention:
The present invention is in order to realize comprehensive utilization of resources, provide a kind of consume energy low, discharge capacity is few, the secondary aluminum production technique that economizes on resources.
Technical scheme of the present invention is as follows:
The secondary aluminum production technique is characterized in that, may further comprise the steps:
A. the aluminium scrap material is prefabricated, at first aluminium scrap is carried out preliminary classification, and classification is stacked, and for the aluminium scrap goods, should disassemble, and removes the iron and steel and other non-ferrous metal pieces that are connected with the aluminium material, makes the aluminium scrap material through operations such as cleaning, fragmentation, magnetic separation, oven dry again;
B. batching according to preparing and quality condition of aluminium scrap material, according to the technical requirements of reconstituted product, is selected the consumption of arranging in pairs or groups and calculating all kinds of material for use;
C. slightly refining is sent the aluminium scrap material that matches into melting in the smelting furnace;
D. refining is introduced refining with the aluminum solutions in the smelting furnace by diversion trench and is purified the stove refining, realizes the rotten of molten aluminium and purifies, and removes dissolved hydrogen, oxide inclusion and nonmetal inclusion in the aluminium liquid;
E. chemical examination utilizes spectrograph that aluminum solutions is detected, and analyzes the content of each chemical element, for the chemical ingredients that guarantees alloy material meets the arts demand of technical requirements and press working, and in case of necessity can be with addition of the primary aluminium ingot of a part;
F. cast is with the aluminium liquid casting after the refining;
G. inspection after construction utilizes spectrometer analysis to detect the content of each chemical element of moulding aluminium ingot, guarantees that the chemical element content of product all is up to state standards;
H. the packing warehouse-in is tied up product after the assay was approved, the packing warehouse-in.
Often contain organic non-metal impurity such as paint, oils, plastics, rubber in the described aluminium scrap, before melting down smelting, must manage to be removed.
Described batching should be considered the oxidization burning loss degree of metal, and the oxidization burning loss of silicon, magnesium wants big than other alloying elements, and the burn out rate of various alloying elements should be determined by experiment in advance.
Described refining is to adopt the gas refinement method, feeds the nitrogen gas generation bubble in aluminium liquid, utilizes these bubbles in floating-upward process dissolved hydrogen and inclusion to be adsorbed.
The invention has the beneficial effects as follows to have the advantage that power consumption is low, discharge capacity is few, economize on resources, can be with once synthetic die casting, the casting aluminum alloy ingot that meets national standard of aluminium scrap.
Description of drawings:
Fig. 1 is a process flow diagram of the present invention.
Embodiment:
For technique means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1,
The secondary aluminum production technique, concrete technical process is:
A. the aluminium scrap material is prefabricated 1, at first aluminium scrap is carried out preliminary classification, and classification is stacked, and for the aluminium scrap goods, should disassemble, and removes the iron and steel and other non-ferrous metal pieces that are connected with the aluminium material, makes the aluminium scrap material through operations such as cleaning, fragmentation, magnetic separation, oven dry again; Often contain organic non-metal impurity such as paint, oils, plastics, rubber in the aluminium scrap, before melting down smelting, must manage to be removed.
B. prepare burden 2,,, select the consumption of arranging in pairs or groups and calculating all kinds of material for use according to the technical requirements of reconstituted product according to preparing and quality condition of aluminium scrap material; Batching should be considered the oxidization burning loss degree of metal, and the oxidization burning loss of silicon, magnesium wants big than other alloying elements, and the burn out rate of various alloying elements should be determined by experiment in advance.
C. slightly refine 3, the aluminium scrap material that matches is sent into melting in the smelting furnace;
D. refining 4, the aluminum solutions in the smelting furnace is introduced refining by diversion trench purify the stove refining, realize the rotten of molten aluminium and purify; In aluminium liquid, feed the nitrogen gas generation bubble, utilize these bubbles in floating-upward process, dissolved hydrogen and inclusion to be adsorbed, remove dissolved hydrogen, oxide inclusion and nonmetal inclusion in the aluminium liquid; Melt in the liquid at aluminium and to add the ternary alterant and carry out melting, improve the mechanical property of aluminium alloy.
E. chemically examine 5, utilize spectrograph that aluminum solutions is detected, analyze the content of each chemical element, for the chemical ingredients that guarantees alloy material meets the arts demand of technical requirements and press working, in case of necessity can be with addition of the primary aluminium ingot of a part;
F. pour into a mould 6, with the aluminium liquid casting after the refining;
G. inspection after construction 7, utilize spectrometer analysis to detect the content of each chemical element of moulding aluminium ingot, guarantee that the chemical element content of product all is up to state standards;
H. the packing warehouse-in 8, product after the assay was approved tied up the packing warehouse-in.
More than show and described technical process 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 illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the secondary aluminum production technique is characterized in that,
May further comprise the steps:
A. the aluminium scrap material is prefabricated, at first aluminium scrap is carried out preliminary classification, and classification is stacked, and for the aluminium scrap goods, should disassemble, and removes the iron and steel and other non-ferrous metal pieces that are connected with the aluminium material, makes the aluminium scrap material through operations such as cleaning, fragmentation, magnetic separation, oven dry again;
B. batching according to preparing and quality condition of aluminium scrap material, according to the technical requirements of reconstituted product, is selected the consumption of arranging in pairs or groups and calculating all kinds of material for use;
C. slightly refining is sent the aluminium scrap material that matches into melting in the smelting furnace;
D. refining is introduced refining with the aluminum solutions in the smelting furnace by diversion trench and is purified the stove refining, removes dissolved hydrogen, oxide inclusion and nonmetal inclusion in the aluminium liquid;
E. chemical examination utilizes spectrograph that aluminum solutions is detected, and analyzes the content of each chemical element, for the chemical ingredients that guarantees alloy material meets the arts demand of technical requirements and press working, and in case of necessity can be with addition of the primary aluminium ingot of a part;
F. cast is with the aluminium liquid casting after the refining;
G. inspection after construction utilizes spectrometer analysis to detect the content of each chemical element of moulding aluminium ingot, guarantees that the chemical element content of product all is up to state standards;
H. the packing warehouse-in is tied up product after the assay was approved, the packing warehouse-in.
2. secondary aluminum production technique according to claim 1 is characterized in that: often contain organic non-metal impurity such as paint, oils, plastics, rubber in the described aluminium scrap, before melting down smelting, must manage to be removed.
3. secondary aluminum production technique according to claim 1 is characterized in that: described batching should be considered the oxidization burning loss degree of metal, and the oxidization burning loss of silicon, magnesium wants big than other alloying elements, and the burn out rate of various alloying elements should be determined by experiment in advance.
4. secondary aluminum production technique according to claim 1 is characterized in that: described refining is to adopt the gas refinement method, feeds the nitrogen gas generation bubble in aluminium liquid, utilizes these bubbles in floating-upward process dissolved hydrogen and inclusion to be adsorbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105709497A CN102021349A (en) | 2010-12-02 | 2010-12-02 | Secondary aluminum production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105709497A CN102021349A (en) | 2010-12-02 | 2010-12-02 | Secondary aluminum production process |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417997A (en) * | 2011-12-08 | 2012-04-18 | 东北大学 | Preparation method of reclaimed 7075 aluminum alloy containing rare earth |
| CN103088365A (en) * | 2013-02-01 | 2013-05-08 | 贵阳冶金机电工艺有限公司 | Clean production process of electrolytic aluminum |
| CN103146924A (en) * | 2013-03-18 | 2013-06-12 | 天津立中合金集团有限公司 | Multi-stage impurity removing and refining method in production process of secondary aluminum |
| 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 |
| CN103397188A (en) * | 2013-07-22 | 2013-11-20 | 南南铝业股份有限公司 | Organic scrap-containing aluminum regeneration method |
| WO2014015539A1 (en) * | 2012-07-26 | 2014-01-30 | 北京科技大学 | Method of recycling of waste easy-open aluminum cans |
| CN103572077A (en) * | 2013-11-20 | 2014-02-12 | 江苏江旭铸造集团有限公司 | Production method for recycled cast aluminum alloy |
| CN103602817A (en) * | 2013-11-13 | 2014-02-26 | 安徽省金盈铝业有限公司 | High/low two-furnace low-temperature pre-impurity-removal process for secondary aluminium |
| 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 |
| CN103938001A (en) * | 2013-01-17 | 2014-07-23 | 兰溪市博远金属有限公司 | Production process for recycled aluminum |
| CN104178643A (en) * | 2014-08-01 | 2014-12-03 | 江阴迪新金属工业有限公司 | Method for recycling scrap aluminum to machine aluminum bar |
| CN104232901A (en) * | 2014-08-28 | 2014-12-24 | 安徽永昌金属制品有限公司 | Method for casting aluminum part from recovered scrap aluminum cuttings |
| CN105033189A (en) * | 2015-07-07 | 2015-11-11 | 安徽华胤家具有限公司 | Casting process for aluminum chair armrest |
| CN105274340A (en) * | 2015-10-31 | 2016-01-27 | 林州市林丰铝电有限责任公司 | Method for recycling waste aluminum material to manufacture aluminum casting |
| CN105695753A (en) * | 2016-04-20 | 2016-06-22 | 兰溪市博远金属有限公司 | Secondary aluminum production technology and drying device thereof |
| CN105803210A (en) * | 2016-04-25 | 2016-07-27 | 铜陵百锐设备配件有限公司 | Process for recycling aluminum from waste machine parts |
| CN104004932B (en) * | 2014-06-03 | 2016-08-24 | 芜湖永达科技有限公司 | A kind of aluminium bits application process in aluminum alloy cylinder cover casts |
| CN107674996A (en) * | 2017-09-26 | 2018-02-09 | 太湖县光华铝业有限公司 | Regeneration aluminium production process based on Vibratory Mixing technique |
| CN108165750A (en) * | 2017-12-29 | 2018-06-15 | 河南明泰科技发展有限公司 | Aluminium and aluminium alloy scrap recovery and treatment method and application |
| CN109136569A (en) * | 2018-09-26 | 2019-01-04 | 广东华劲金属型材有限公司 | A kind of aluminium alloy particle recycling technology |
| CN109518020A (en) * | 2018-12-29 | 2019-03-26 | 江苏兴甬铝业科技有限公司 | A kind of production technology of aluminium alloy clast complexification melting and casting finished product |
| WO2019201070A1 (en) * | 2018-04-20 | 2019-10-24 | 东深金属燃料动力实验室有限责任公司 | Method for producing aluminum hydroxide from aluminum waste material |
| CN110643820A (en) * | 2019-10-21 | 2020-01-03 | 湖北华力科技有限公司 | Environment-friendly smelting method of regenerated aluminum alloy |
| CN111051545A (en) * | 2017-03-23 | 2020-04-21 | 诺维尔里斯公司 | Casting recycled aluminum scrap |
| CN114657382A (en) * | 2022-03-18 | 2022-06-24 | 镇江市金华铝业有限公司 | Recycling production process of aluminum die-casting waste |
-
2010
- 2010-12-02 CN CN2010105709497A patent/CN102021349A/en active Pending
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417997A (en) * | 2011-12-08 | 2012-04-18 | 东北大学 | Preparation method of reclaimed 7075 aluminum alloy containing rare earth |
| WO2014015539A1 (en) * | 2012-07-26 | 2014-01-30 | 北京科技大学 | Method of recycling of waste easy-open aluminum cans |
| CN103938001A (en) * | 2013-01-17 | 2014-07-23 | 兰溪市博远金属有限公司 | Production process for recycled aluminum |
| CN103088365B (en) * | 2013-02-01 | 2017-07-25 | 贵阳冶金机电工艺有限公司 | A kind of electrolytic aluminium process for cleanly preparing |
| CN103088365A (en) * | 2013-02-01 | 2013-05-08 | 贵阳冶金机电工艺有限公司 | Clean production process of electrolytic aluminum |
| CN103146924A (en) * | 2013-03-18 | 2013-06-12 | 天津立中合金集团有限公司 | Multi-stage impurity removing and refining method in production process of secondary aluminum |
| CN103146924B (en) * | 2013-03-18 | 2014-05-28 | 天津立中合金集团有限公司 | Multi-stage impurity removing and refining method in production process of secondary 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 |
| CN103397188A (en) * | 2013-07-22 | 2013-11-20 | 南南铝业股份有限公司 | Organic scrap-containing aluminum regeneration method |
| CN103361487A (en) * | 2013-07-22 | 2013-10-23 | 南南铝业股份有限公司 | Production method of recycled aluminum |
| CN103397188B (en) * | 2013-07-22 | 2015-01-21 | 南南铝业股份有限公司 | Organic scrap-containing aluminum regeneration method |
| CN103361487B (en) * | 2013-07-22 | 2015-04-22 | 南南铝业股份有限公司 | Production method of recycled aluminum |
| CN103602817A (en) * | 2013-11-13 | 2014-02-26 | 安徽省金盈铝业有限公司 | High/low two-furnace low-temperature pre-impurity-removal process for secondary aluminium |
| CN103572077A (en) * | 2013-11-20 | 2014-02-12 | 江苏江旭铸造集团有限公司 | Production method for recycled cast aluminum alloy |
| 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 |
| CN104004932B (en) * | 2014-06-03 | 2016-08-24 | 芜湖永达科技有限公司 | A kind of aluminium bits application process in aluminum alloy cylinder cover casts |
| CN104178643A (en) * | 2014-08-01 | 2014-12-03 | 江阴迪新金属工业有限公司 | Method for recycling scrap aluminum to machine aluminum bar |
| CN104178643B (en) * | 2014-08-01 | 2016-06-29 | 江阴迪新金属工业有限公司 | A kind of method of waste aluminum recovery processing aluminium bar |
| CN104232901A (en) * | 2014-08-28 | 2014-12-24 | 安徽永昌金属制品有限公司 | Method for casting aluminum part from recovered scrap aluminum cuttings |
| CN105033189A (en) * | 2015-07-07 | 2015-11-11 | 安徽华胤家具有限公司 | Casting process for aluminum chair armrest |
| CN105274340A (en) * | 2015-10-31 | 2016-01-27 | 林州市林丰铝电有限责任公司 | Method for recycling waste aluminum material to manufacture aluminum casting |
| CN105695753A (en) * | 2016-04-20 | 2016-06-22 | 兰溪市博远金属有限公司 | Secondary aluminum production technology and drying device thereof |
| CN105803210A (en) * | 2016-04-25 | 2016-07-27 | 铜陵百锐设备配件有限公司 | Process for recycling aluminum from waste machine parts |
| CN111051545A (en) * | 2017-03-23 | 2020-04-21 | 诺维尔里斯公司 | Casting recycled aluminum scrap |
| CN107674996A (en) * | 2017-09-26 | 2018-02-09 | 太湖县光华铝业有限公司 | Regeneration aluminium production process based on Vibratory Mixing technique |
| CN108165750A (en) * | 2017-12-29 | 2018-06-15 | 河南明泰科技发展有限公司 | Aluminium and aluminium alloy scrap recovery and treatment method and application |
| WO2019201070A1 (en) * | 2018-04-20 | 2019-10-24 | 东深金属燃料动力实验室有限责任公司 | Method for producing aluminum hydroxide from aluminum waste material |
| CN109136569A (en) * | 2018-09-26 | 2019-01-04 | 广东华劲金属型材有限公司 | A kind of aluminium alloy particle recycling technology |
| CN109518020A (en) * | 2018-12-29 | 2019-03-26 | 江苏兴甬铝业科技有限公司 | A kind of production technology of aluminium alloy clast complexification melting and casting finished product |
| CN110643820A (en) * | 2019-10-21 | 2020-01-03 | 湖北华力科技有限公司 | Environment-friendly smelting method of regenerated aluminum alloy |
| CN114657382A (en) * | 2022-03-18 | 2022-06-24 | 镇江市金华铝业有限公司 | Recycling production process of aluminum die-casting waste |
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Application publication date: 20110420 |