CN109112321A - A kind of Way of Remelting Scrap Aluminium method - Google Patents
A kind of Way of Remelting Scrap Aluminium method Download PDFInfo
- Publication number
- CN109112321A CN109112321A CN201810956623.4A CN201810956623A CN109112321A CN 109112321 A CN109112321 A CN 109112321A CN 201810956623 A CN201810956623 A CN 201810956623A CN 109112321 A CN109112321 A CN 109112321A
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- aluminium
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- remelting
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 225
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 225
- 239000004411 aluminium Substances 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 32
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 157
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 238000003723 Smelting Methods 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000004575 stone Substances 0.000 claims abstract description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000007885 magnetic separation Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 230000037237 body shape Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052742 iron Inorganic materials 0.000 abstract description 11
- 238000012216 screening Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0084—Obtaining aluminium melting and handling molten aluminium
- C22B21/0092—Remelting scrap, skimmings or any secondary source aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/001—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag comprising breaking tools, e.g. hammers, drills, scrapers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to Way of Remelting Scrap Aluminium technical field, specifically a kind of Way of Remelting Scrap Aluminium method, this method comprises the following steps: aluminium scrap being cleaned and is air-dried, the sandy soil and stone of adhesion in aluminium scrap are removed；Magnetic separation is carried out to aluminium scrap, the ferrous material screening for being mixed with scattered in aluminium scrap is separated；Aluminium scrap cutting is fragmentated, and is placed under the sun heating of being exposed to the sun；Aluminium scrap is put into melting in waste aluminum smelting furnace, and the impurity in aluminium scrap is sorted out；The present invention improves Way of Remelting Scrap Aluminium method by waste aluminum smelting furnace, and the high impurity removal of the aluminium oxide and other fusing points generated when by Way of Remelting Scrap Aluminium improves the quality of molten aluminum after Way of Remelting Scrap Aluminium；By removing sandy soil, stone and the iron filings etc. in aluminium scrap before Way of Remelting Scrap Aluminium, the quality of molten aluminum after Way of Remelting Scrap Aluminium is improved.
Description
Technical field
The invention belongs to Way of Remelting Scrap Aluminium technical field, specifically a kind of Way of Remelting Scrap Aluminium method.
Background technique
In order to improve recovery utilization rate, the aluminium scrap that general aluminum profile manufacturer processing left behind can all pass through recycling,
The producer to aluminium scrap processing aluminium bar is uniformly sent to carry out melting double teeming.During entire waste aluminum recovery processes aluminium bar, there are three
Big procedure: waste aluminum recovery, melting, double teeming.Wherein second operation work needs aluminium scrap to be dosed to progress melting in smelting furnace.
Iron class impurity be for the smelting of aluminium scrap it is extremely harmful, brittle metal knot can be formed when irony is excessive in aluminium
Crystal to reduce its mechanical performance, and weakens its resistance to corrosion.Iron-content should generally control below 1.2%.For iron content
The aluminium scrap 1.5% or more is measured, can be used for the deoxidier of steel and iron industry, it is molten that the high aluminium scrap of iron-content is rarely employed in business aluminium alloy
Refining.Currently, there are no very successful methods can satisfactorily remove excessive iron in aluminium scrap in aluminum i ndustry, especially with stainless steel
Iron existing for form.
During Way of Remelting Scrap Aluminium, if not removing the impurity such as the sandy soil in aluminium scrap in advance, it will seriously affect in aluminium scrap and melt
The quality of refining, meanwhile, aluminium scrap can generate aluminium oxide in fusion process, and the fusing point of aluminium oxide is higher, be not easy melting, therefore molten
Alumina impurities should be rejected when refining aluminium scrap, improve the quality of Way of Remelting Scrap Aluminium.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of Way of Remelting Scrap Aluminium method proposed by the present invention, it is an object of the invention to
The quality of molten aluminum after raising Way of Remelting Scrap Aluminium.The present invention improves Way of Remelting Scrap Aluminium method by waste aluminum smelting furnace, when by Way of Remelting Scrap Aluminium
The aluminium oxide of generation and other fusing points it is high impurity removal, improve the quality of molten aluminum after Way of Remelting Scrap Aluminium；By in Way of Remelting Scrap Aluminium
The removal such as the preceding sandy soil by aluminium scrap, stone and iron filings, improves the quality of molten aluminum after Way of Remelting Scrap Aluminium.
The technical solution adopted by the present invention to solve the technical problems is: a kind of Way of Remelting Scrap Aluminium method of the present invention,
This method comprises the following steps:
Step 1: aluminium scrap being put into blender and stirs wash clean, removes the sandy soil and stone of adhesion in aluminium scrap, later will
Aluminium scrap air-dries；
Step 2: after step 1 by aluminium scrap clean dry in the air air-dry after, to aluminium scrap carry out magnetic separation, scattered iron will be mixed in aluminium scrap
Material screening is separated；
Step 3: after step 2 screens the scattered ferrous material in aluminium scrap, aluminium scrap cutting is fragmentated, makes to give up
Aluminium is easy to be smelted, and improves the smelting efficiency of aluminium scrap, and aluminium scrap is placed under the sun heating of being exposed to the sun, and can reduce aluminium scrap energy in melting
The consumption in source, energy conservation and environmental protection；
Step 4: after aluminium scrap is cut into fragment by step 3 and heating of being exposed to the sun is placed under the sun, aluminium scrap is put into aluminium scrap
Melting is heated in smelting furnace, and will be sorted out in aluminium scrap with impurity such as aluminium scrap impurity with different melting points such as aluminium oxide, copper oxide；
Waste aluminum smelting furnace in the step 4 includes furnace body, outer furnace, bearing one, interior furnace, drive module, one and of heater
Spiral scraper, the outer furnace are fixed in furnace body, and step is arranged in the upper end of outer furnace, and water tank, outer furnace are arranged between outer furnace and furnace body
Waste residue channel is provided between furnace body；The water tank is located at outer furnace top, is provided with water inlet pipe on water tank；The interior furnace passes through
Bearing one is fastened on the step of outer furnace, multiple leakage aluminium holes is equipped on the furnace wall of interior furnace, the upper end of interior furnace is provided with lifting lug, interior
A circle gear ring is provided on the outer wall of furnace；The drive module is installed on water tank upper end, and drive module is steamed by the water that water tank evaporates
Stripping is for power, and drive module is for driving interior furnace to rotate；The heater one between furnace body and outer furnace, use by heater one
In external stove heating；In on the outer wall of interior furnace, spiral scraper is used for the aluminium oxide in outer furnace the spiral scraper screw arrangement
It scrapes and passes through waste residue channel and send out outside furnace body.When work, aluminium scrap is put into interior furnace, is added with the external furnace of heater one
Heat controls the temperature of outer furnace within 1200 DEG C, and the temperature of interior furnace controls within 1100 DEG C, and outer furnace contacts the heat to interior furnace
Melt the aluminium scrap in interior furnace, when the aluminium scrap of interior furnace just starts to melt, the surface of aluminium scrap will generate one layer of aluminium oxide, part oxygen
Change aluminium to enter in outer furnace by leakage aluminium hole, the molten aluminum of partial liquefaction also enters in outer furnace, and generates one layer of aluminium oxide in outer furnace；
During one external stove heating of heater, the water in water tank gradually boils and generates water vapour, and water vapour passes through drive module
Drive module is set to generate movement, drive module drives interior furnace to rotate on outer furnace, and spiral scraper follows interior furnace to rotate, spiral scraper
The inner wall of external furnace scrapes, and saves bit by bit the aluminium oxide that can not be melted in outer furnace gradually under the rotation of spiral scraper together,
And molten aluminum then flows down on spiral scraper, aluminium oxide is then turned as spiral scraper is rotated by centrifugation, when aluminium oxide is centrifuged to
When at waste residue channel, aluminium oxide is fallen on outside furnace body along waste residue channel, and the molten aluminum in interior furnace gradually flows in outer furnace, interior furnace and outer
The liquid level of molten aluminum maintains an equal level in furnace；In the case where spiral scraper constantly rotates, the aluminium oxide in outer furnace is all rejected, will be interior by loop wheel machine
The lifting lug of furnace triggers, and interior furnace is slowly risen and is lifted, and the molten aluminum liquid level drop of the molten aluminum liquid level for making interior furnace and outer furnace is at two centimetres
It is interior, until by remaining in interior furnace and the oxidation residue of aluminum that can not be leak into outer furnace inclines after the molten aluminum in interior furnace is leak into completely in outer furnace
Oxidation residue of aluminum in is toppled over, and the aluminium scrap to which the molten aluminum in outer furnace after use, to be carried out to next round melts.
It is described aluminium scrap is cleaned in step 1 air-dry before, also need the rubber that will be wrapped up on aluminium scrap or plastics to remove, it is difficult to remove
The rubber or plastics gone stays subsequent melting aluminium scrap to be flared off.By the protective layer of aluminium scrap outer surface as far as possible before Way of Remelting Scrap Aluminium, such as
Elastomeric skin layer or plastics remove, and reduce aluminium scrap to the greatest extent and generate impurity in melting and influence Way of Remelting Scrap Aluminium.
The spiral scraper includes fixing body, blade and spring one, and the fixing body is the spiral shell to match with interior furnace outer wall
Shape is revolved, is provided with slot one compatible with blade sections on fixing body；The blade be provided with it is multiple, multiple blades press fixing body
The hand of spiral is installed on side by side in slot one, and the end and one bottom end of slot of blade are connected by spring one；On the inner wall of the outer furnace
It is provided with convex ribs one.When work, the end of blade is resisted against on the inner wall of outer furnace, and interior furnace rotate driving spiral scraper, which follows, to be turned
Dynamic, blade scrapes on the inner wall of outer furnace, and the aluminium oxide in outer furnace is scraped, when blade encounters a period of time of the convex ribs on outer furnace, knife
Piece is compressed in slot one, and the aluminium oxide adhered on blade is scraped by the notch of slot one, so that aluminium oxide is not bonded on blade, side
Blade be easier to scrape the aluminium oxide on outer furnace inner wall.
Venthole is provided on the fixing body, and venthole is concordant with one bottom end of slot and is connected to.When work, venthole is used
In keeping one inside of slot identical as external pressure, avoid when blade is overhanging, pressure reduces and molten aluminum is made to be inhaled into slot in slot one
In one, slot one is caused to block.
The shape of the blade is rectangular-shape, and the convex ribs two of arc-shaped are provided in the middle part of the side of blade.On the one hand,
Convex ribs two can be such that blade is more easily sliding on slot one, have guiding role to blade, on the other hand, convex ribs two can reinforce blade
Intensity, be not easily broken blade.
The drive module includes impeller, axis one, bearing two and gear one, and the impeller is set in bearing two, impeller
It is connected with two inner ring of bearing, impeller is fixed on the water tank between furnace body and outer furnace by bearing two；The impeller and gear one
It is connected by axis one, the impeller of rotation drives gear one by axis one；The gear one is engaged with gear ring.When work, in water tank
Water be heated boiling, vapor overflows from water tank and passes through impeller, and the vapor of rising generates thrust, vapor band to impeller
Dynamic wheel rotation, impeller is by one driven gear ring of gear, so that drive module is able to be successfully driven interior furnace rotation.
Having heaters two is arranged in the furnace body upper end, and heater two is used to heat melting to aluminium scrap from interior furnace upper end.In furnace
Heater two is arranged in body upper end, the speed of interior furnace melting aluminium scrap can be improved, at the same time it can also the impurity that will can be burned in aluminium scrap
It burns.
Beneficial effects of the present invention are as follows:
1. a kind of Way of Remelting Scrap Aluminium method proposed by the present invention, the present invention improve Way of Remelting Scrap Aluminium side by waste aluminum smelting furnace
Method, the aluminium oxide generated when by Way of Remelting Scrap Aluminium and other fusing points it is high impurity removal, improve the quality of molten aluminum after Way of Remelting Scrap Aluminium；
By removing sandy soil, stone and the iron filings etc. in aluminium scrap before Way of Remelting Scrap Aluminium, the quality of molten aluminum after Way of Remelting Scrap Aluminium is improved.
2. a kind of Way of Remelting Scrap Aluminium method proposed by the present invention, the present invention is easy to aluminium scrap by the way that aluminium scrap cutting fragmentates
It is smelted, improves the smelting efficiency of aluminium scrap, by the way that aluminium scrap is placed under the sun heating of being exposed to the sun, aluminium scrap energy in melting can be reduced
Consumption, energy conservation and environmental protection.
3. a kind of Way of Remelting Scrap Aluminium method proposed by the present invention, the present invention are made by the way that water tank is arranged between outer furnace and furnace body
Water tank generates vapor to push drive module, so that drive module is driven interior furnace rotation, so that the heat between outer furnace and furnace body
It is utilized, reduces the waste of the energy.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is waste aluminum smelting furnace overall structure diagram of the invention；
Fig. 3 is that spiral scraper of the invention dries curved preceding structural schematic diagram；
Fig. 4 is the bottom view about Fig. 3；
Fig. 5 is the schematic diagram that spiral scraper of the invention strikes off aluminium oxide on outer furnace inner wall；
Fig. 6 is outer furnace inner wall structure diagram of the invention；
In figure: furnace body 1, waste residue channel 11, water tank 12, water inlet pipe 13, outer furnace 2, convex ribs 1, bearing 1, interior furnace 3,
Lifting lug 31, leakage aluminium hole 33, spring 2 34, drive module 4, impeller 41, axis 1, bearing 2 43, gear 1, adds gear ring 32
Hot device 5, spiral scraper 6, fixing body 61, slot 1, venthole 612, blade 62, convex ribs 2 621, spring 1, aluminium oxide 7.
Specific embodiment
It is carried out using a kind of Way of Remelting Scrap Aluminium method of the Fig. 1 to Fig. 6 to an embodiment of the present invention as described below.
As shown in Fig. 1 to Fig. 3 and Fig. 5, a kind of Way of Remelting Scrap Aluminium method of the present invention, this method comprises the following steps:
Step 1: aluminium scrap being put into blender and stirs wash clean, removes the sandy soil and stone of adhesion in aluminium scrap, later will
Aluminium scrap air-dries；
Step 2: after step 1 by aluminium scrap clean dry in the air air-dry after, to aluminium scrap carry out magnetic separation, scattered iron will be mixed in aluminium scrap
Material screening is separated；
Step 3: after step 2 screens the scattered ferrous material in aluminium scrap, aluminium scrap cutting is fragmentated, makes to give up
Aluminium is easy to be smelted, and improves the smelting efficiency of aluminium scrap, and aluminium scrap is placed under the sun heating of being exposed to the sun, and can reduce aluminium scrap energy in melting
The consumption in source, energy conservation and environmental protection；
Step 4: after aluminium scrap is cut into fragment by step 3 and heating of being exposed to the sun is placed under the sun, aluminium scrap is put into aluminium scrap
Melting is heated in smelting furnace, and will be sub-elected in aluminium scrap with impurity such as aluminium scrap impurity with different melting points such as aluminium oxide 7, copper oxide
Come；
Waste aluminum smelting furnace in the step 4 includes furnace body 1, outer furnace 2, bearing 1, interior furnace 3, drive module 4, heating
Device 1 and spiral scraper 6, the outer furnace 2 are fixed in furnace body 1, and step is arranged in the upper end of outer furnace 2, between outer furnace 2 and furnace body 1
Water tank 12 is set, is provided with waste residue channel 11 between outer furnace 2 and furnace body 1；The water tank 12 is located at outer 2 top of furnace, on water tank 12
It is provided with water inlet pipe 13；The interior furnace 3 is fastened on the step of outer furnace 2 by bearing 1, is equipped on the furnace wall of interior furnace 3 more
A leakage aluminium hole 33, the upper end of interior furnace 3 are provided with lifting lug 31, a circle gear ring 32 are provided on the outer wall of interior furnace 3；The drive module
4 are installed on 12 upper end of water tank, and drive module 4 provides power by the water vapour that water tank 12 evaporates, and drive module 4 is for driving interior furnace
3 rotations；Between furnace body 1 and outer furnace 2, heater 1 heats the heater 1 for external furnace 2；The spiral scraper
In on the outer wall of interior furnace 3, spiral scraper 6 is used to scrape the aluminium oxide 7 in outer furnace 2 and by waste residue channel 11 6 screw arrangements
It sends out outside furnace body 1.When work, aluminium scrap is put into interior furnace 3, is heated with the external furnace 2 of heater 1, makes the temperature of outer furnace 2
Control is within 1200 DEG C, and the temperature of interior furnace 3 controls within 1100 DEG C, and outer furnace 2, which contacts the heat to interior furnace 3, to be made in interior furnace 3
Aluminium scrap melts, and when the aluminium scrap of interior furnace 3 just starts to melt, the surface of aluminium scrap will generate one layer of aluminium oxide 7, and partial oxidation aluminium 7 is logical
It crosses leakage aluminium hole 33 to enter in outer furnace 2, the molten aluminum of partial liquefaction also enters in outer furnace 2, and generates one layer of aluminium oxide 7 in outer furnace 2；
In external 2 heating process of furnace of heater 1, the water in water tank 12 gradually boils and generates water vapour, and water vapour passes through driving
Module 4 makes drive module 4 generate movement, and drive module 4 drives interior furnace 3 to rotate on outer furnace 2, and spiral scraper 6 follows 3 turns of interior furnace
Dynamic, the inner wall of the external furnace 2 of spiral scraper 6 scrapes, and makes the aluminium oxide 7 that can not be melted in outer furnace 2 under the rotation of spiral scraper 6
It gradually saves bit by bit together, and molten aluminum then flows down on spiral scraper 6, aluminium oxide 7 is then turned as spiral scraper 6 is rotated by centrifugation
It rises, when aluminium oxide 7 is centrifuged at waste residue channel 11, aluminium oxide 7 is fallen on outside furnace body 1 along waste residue channel 11, in interior furnace 3
Molten aluminum gradually flows in outer furnace 2, and interior furnace 3 and the liquid level of molten aluminum in outer furnace 2 maintain an equal level；Under spiral scraper 6 constantly rotation, outer furnace 2
In aluminium oxide 7 all rejected, the lifting lug 31 of interior furnace 3 is triggered by loop wheel machine, interior furnace 3 is slowly risen and is lifted, interior furnace 3 is made
Molten aluminum liquid level and outer furnace 2 molten aluminum liquid level drop in two centimetres, to after the molten aluminum in interior furnace 3 is leak into completely in outer furnace 2, general
7 residue of aluminium oxide that remaining and 7 residue of aluminium oxide that can not leak into outer furnace 2 are toppled in 2 in interior furnace 3 is toppled over, to will be in outer furnace 2
Molten aluminum after use, carry out next round aluminium scrap melt.
It is described aluminium scrap is cleaned in step 1 air-dry before, also need the rubber that will be wrapped up on aluminium scrap or plastics to remove, it is difficult to remove
The rubber or plastics gone stays subsequent melting aluminium scrap to be flared off.By the protective layer of aluminium scrap outer surface as far as possible before Way of Remelting Scrap Aluminium, such as
Elastomeric skin layer or plastics remove, and reduce aluminium scrap to the greatest extent and generate impurity in melting and influence Way of Remelting Scrap Aluminium.
As shown in Figures 3 to 6, the spiral scraper 6 includes fixing body 61, blade 62 and spring 1, the fixing body
61 be the helical form to match with interior 3 outer wall of furnace, is provided with slot 1 compatible with 62 section of blade on fixing body 61；Institute
It states blade 62 and is provided with multiple, multiple blades 62 are installed in slot 1 side by side by 61 hand of spiral of fixing body, the end of blade 62
Portion and one 611 bottom end of slot are connected by spring 1；Convex ribs 1 are provided on the inner wall of the outer furnace 2.When work, blade 62
End be resisted against on the inner wall of outer furnace 2, interior 3 rotate driving spiral scraper 6 of furnace follows rotation, inner wall of the blade 62 in outer furnace 2
On scrape, the aluminium oxide 7 in outer furnace 2 is scraped, when blade 62 encounters convex ribs 1 on outer furnace 2, blade 62 is compressed to
In slot 1, the aluminium oxide 7 adhered on blade 62 is scraped by the notch of slot 1, so that aluminium oxide 7 is not bonded on blade 62,
Blade 62 is facilitated to be easier to scrape the aluminium oxide 7 on outer 2 inner wall of furnace.
As shown in Fig. 2, being provided with venthole 612 on the fixing body 61, and venthole 612 is concordant with one 611 bottom end of slot
And it is connected to.When work, venthole 612 is used to keep one 611 inside of slot identical as external pressure, avoids when blade 62 is overhanging,
Pressure reduces and is inhaled into molten aluminum in slot 1 in slot 1, and slot 1 is caused to block.
As shown in Figures 3 to 5, the shape of the blade 62 is rectangular-shape, and is provided with circle in the middle part of the side of blade 62
The convex ribs 2 621 of arcuation.On the one hand, convex ribs 2 621 can be such that blade 62 is more easily sliding on slot 1, have to blade 62
Guiding role, on the other hand, convex ribs 2 621 can reinforce the intensity of blade 62, be not easily broken blade 62.
As shown in Fig. 2, the drive module 4 includes impeller 41, axis 1, bearing 2 43 and gear 1, the impeller
41 are set in bearing 2 43, and impeller 41 and 2 43 inner ring of bearing are connected, and impeller 41 is fixed on furnace body 1 and outer by bearing 2 43
On water tank 12 between furnace 2；The impeller 41 is connected with gear 1 by axis 1, and the impeller 41 of rotation is driven by axis 1
Moving gear 1；The gear 1 is engaged with gear ring 32.When work, the water in water tank 12 is heated boiling, and vapor is from water
Case 12 overflows and by impeller 41, and the vapor of rising generates thrust to impeller 41, and vapor impeller 41 rotates, impeller 41
By one 44 driven gear ring 32 of gear, so that drive module 4 is able to be successfully driven the interior rotation of furnace 3.
As shown in Fig. 2, having heaters 2 51 is arranged in 1 upper end of furnace body, heater 2 51 is used for from interior 3 upper end of furnace to useless
Aluminium heats melting.Heater 2 51 is set in 1 upper end of furnace body, the speed of interior 3 melting aluminium scrap of furnace can be improved, at the same time it can also incite somebody to action
The burn impurities that can be burned in aluminium scrap fall.
Specifically used process is as follows:
In use, by aluminium scrap put into furnace 3, heated with the external furnace 2 of heater 1, with heater 2 51 from interior
Aluminium scrap in the internal furnace 3 in 3 upper end of furnace is heated, and controls the temperature of outer furnace 2 within 1200 DEG C, and the temperature of interior furnace 3 controls
Within 1100 DEG C, so that the aluminium oxide 7 and iron in aluminium scrap will not melt, outer furnace 2, which contacts the heat to interior furnace 3, to be made in interior furnace 3
Aluminium scrap melts, and when the aluminium scrap of interior furnace 3 just starts to melt, the surface of aluminium scrap will generate one layer of aluminium oxide 7, and partial oxidation aluminium 7 is logical
It crosses leakage aluminium hole 33 to enter in outer furnace 2, the molten aluminum of partial liquefaction also enters in outer furnace 2, and generates one layer of aluminium oxide 7 in outer furnace 2；
In external 2 heating process of furnace of heater 1, the water in water tank 12 gradually boils and generates water vapour, the water quilt in water tank 12
Ebuillition of heated, vapor overflow from water tank 12 and by impellers 41, and vapor impeller 41 rotates, and impeller 41 passes through gear one
The rotation of 44 driven gear rings 32, so that drive module 4 is able to be successfully driven the interior rotation of furnace 3, drive module 4 drives interior furnace 3 in outer furnace 2
Upper rotation, spiral scraper 6 follow interior furnace 3 to rotate, and the end of blade 62 is resisted against on the inner wall of outer furnace 2, interior 3 rotate driving spiral shell of furnace
Skiving cutter 6 follows rotation, and blade 62 scrapes on the inner wall of outer furnace 2, and the aluminium oxide 7 in outer furnace 2 is scraped, when blade 62 is encountered
When convex ribs 1 on outer furnace 2, blade 62 is compressed in slot 1, and the aluminium oxide 7 adhered on blade 62 is by slot 1
Notch scrapes, so that not being bonded aluminium oxide 7 on blade 62, facilitates blade 62 and is easier to scrape the aluminium oxide 7 on outer 2 inner wall of furnace,
Save bit by bit the aluminium oxide 7 that can not be melted in outer furnace 2 gradually together under the rotation of spiral scraper 6, and molten aluminum is then in spiral
It flows down, is flowed in outer furnace 2 on scraper 6, aluminium oxide 7 is then turned as spiral scraper 6 is rotated by centrifugation, when aluminium oxide 7 is centrifuged
When at waste residue channel 11, aluminium oxide 7 is fallen on outside furnace body 1 along waste residue channel 11, and the molten aluminum in interior furnace 3 gradually flows to outer furnace 2
In, interior furnace 3 and the liquid level of molten aluminum in outer furnace 2 maintain an equal level；Under spiral scraper 6 constantly rotation, the aluminium oxide 7 in outer furnace 2 is by whole
It rejects, after aluminium scrap all liquefies in interior furnace 3, the lifting lug 31 of interior furnace 3 is triggered by loop wheel machine, interior furnace 3 is slowly risen and is lifted,
The molten aluminum liquid level drop of the molten aluminum liquid level and outer furnace 2 that make interior furnace 3 is in two centimetres, until the molten aluminum in interior furnace 3 leaks into outer furnace 2 completely
In after, avoid molten aluminum from being oxidized to aluminium oxide 7, by remaining in interior furnace 3 and 7 residue of aluminium oxide that can not leak into outer furnace 2 topples over 2
In 7 residue of aluminium oxide topple over, to the molten aluminum in outer furnace 2 after use, is carried out next round aluminium scrap melt.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, not
Various changes are able to carry out in the range of disengaging present subject matter.
(A) in the above-described embodiment, the smelting scrap aluminum of interior furnace is made by the heating of external furnace exterior, but not limited to this, also
Directly aluminium scrap can be heated in interior furnace with heater.
Industrial applicibility
According to the present invention, Way of Remelting Scrap Aluminium method is improved by waste aluminum smelting furnace, the aluminium oxide generated when by Way of Remelting Scrap Aluminium
And the impurity removal that other fusing points are high, improve the quality of molten aluminum after Way of Remelting Scrap Aluminium；By will be in aluminium scrap before Way of Remelting Scrap Aluminium
The removal such as sandy soil, stone and iron filings, improves the quality of molten aluminum after Way of Remelting Scrap Aluminium；Therefore the Way of Remelting Scrap Aluminium method is molten in aluminium scrap
It is useful for refining technical field.
Claims (7)
1. a kind of Way of Remelting Scrap Aluminium method, it is characterised in that: this method comprises the following steps:
Step 1: aluminium scrap being cleaned and is air-dried, and removes the sandy soil and stone of adhesion in aluminium scrap；
Step 2: after step 1 by aluminium scrap clean dry in the air air-dry after, to aluminium scrap carry out magnetic separation, scattered irony material will be mixed in aluminium scrap
Material screen choosing is separated；
Step 3: after step 2 screens the scattered ferrous material in aluminium scrap, aluminium scrap cutting is fragmentated, and is placed on too
It is exposed to the sun under sun heating；
Step 4: after aluminium scrap is cut into fragment by step 3 and heating of being exposed to the sun is placed under the sun, aluminium scrap is put into Way of Remelting Scrap Aluminium
Melting in furnace, and the impurity in aluminium scrap is sorted out；
Waste aluminum smelting furnace in the step 4 includes furnace body (1), outer furnace (2), bearing one (22), interior furnace (3), drive module
(4), heater one by one be fixed in furnace body (1) by (5) and spiral scraper (6), the outer furnace (2), the upper end setting table of outer furnace (2)
Rank is arranged water tank (12) between outer furnace (2) and furnace body (1), is provided with waste residue channel (11) between outer furnace (2) and furnace body (1)；Institute
It states water tank (12) and is located at outer furnace (2) top, be provided with water inlet pipe (13) on water tank (12)；The interior furnace (3) passes through bearing one
(22) it is fastened on the step of outer furnace (2), multiple leakage aluminium holes (33) is equipped on the furnace wall of interior furnace (3), the upper end of interior furnace (3) is set
It is equipped with lifting lug (31), a circle gear ring (32) is provided on the outer wall of interior furnace (3)；The drive module (4) is installed on water tank (12)
Upper end, drive module (4) provide power by the water vapour that water tank (12) evaporates, and drive module (4) is for driving interior furnace (3) to turn
It is dynamic；The heater is located between furnace body (1) and outer furnace (2) one by one (5), and heater is heated for external furnace (2) one by one (5)；
In on the outer wall of interior furnace (3), spiral scraper (6) is used for the aluminium oxide in outer furnace (2) spiral scraper (6) screw arrangement
(7) it scrapes and sends out furnace body (1) outside by waste residue channel (11).
2. a kind of Way of Remelting Scrap Aluminium method according to claim 1, it is characterised in that: described that aluminium scrap is cleaned wind in step 1
Before dry, the rubber that will be wrapped up on aluminium scrap or plastics is also needed to remove, it is difficult to which the rubber or plastics of removing stay subsequent melting aluminium scrap to burn
It removes.
3. a kind of Way of Remelting Scrap Aluminium method according to claim 1, it is characterised in that: the spiral scraper (6) includes installation
Body (61), blade (62) and spring one (63), the fixing body (61) are the helical form to match with interior furnace (3) outer wall, installation
Slot one (611) compatible with blade (62) section is provided on body (61)；The blade (62) is provided with multiple, multiple blades
(62) it is installed in slot one (611) side by side by fixing body (61) hand of spiral, the end and slot one (611) bottom end of blade (62) are logical
Spring one (63) is crossed to be connected；Convex ribs one (21) are provided on the inner wall of the outer furnace (2).
4. a kind of Way of Remelting Scrap Aluminium method according to claim 3, it is characterised in that: be provided on the fixing body (61) logical
Stomata (612), and venthole (612) is concordant with slot one (611) bottom end and is connected to.
5. a kind of Way of Remelting Scrap Aluminium method according to claim 3, it is characterised in that: the shape of the blade (62) is rectangular
Body shape, and the convex ribs two (621) of arc-shaped are provided in the middle part of the side of blade (62).
6. a kind of Way of Remelting Scrap Aluminium method according to claim 1, it is characterised in that: the drive module (4) includes impeller
(41), axis one (42), bearing two (43) and gear one (44), the impeller (41) are set in bearing two (43), impeller (41)
It is connected with bearing two (43) inner ring, impeller (41) is fixed on the water tank between furnace body (1) and outer furnace (2) by bearing two (43)
(12) on；The impeller (41) and gear one (44) are connected by axis one (42), and the impeller (41) of rotation is driven by axis one (42)
Moving gear one (44)；The gear one (44) is engaged with gear ring (32).
7. a kind of Way of Remelting Scrap Aluminium method according to claim 1, it is characterised in that: furnace body (1) upper end, which is provided with, to be added
Hot device two (51), heater two (51) are used to heat melting to aluminium scrap from interior furnace (3) upper end.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235408A (en) * | 2020-03-28 | 2020-06-05 | 吴兵来 | Aluminum scrap treatment and recovery equipment |
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| CN109112321B (en) | 2020-10-20 |
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