CN1362530A - Filter for eliminating non-metallic foreign impurity in aluminium melt - Google Patents
Filter for eliminating non-metallic foreign impurity in aluminium melt Download PDFInfo
- Publication number
- CN1362530A CN1362530A CN01139250A CN01139250A CN1362530A CN 1362530 A CN1362530 A CN 1362530A CN 01139250 A CN01139250 A CN 01139250A CN 01139250 A CN01139250 A CN 01139250A CN 1362530 A CN1362530 A CN 1362530A
- Authority
- CN
- China
- Prior art keywords
- resistance furnace
- furnace
- flux
- aluminium
- crucible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- Manufacture And Refinement Of Metals (AREA)
Abstract
The equipment for filtering and cleaning non-metal inclusion in aluminium melt mainly comprises resistance furnace, crucible, stirrer, heat-insulating cover, steel cylinder and lifting device whose height is adjustable, the exterior of the crucible is covered with steel cylinder, then is placed in the resistance furnace, and fixed by refractory material, the heat-insulating cover is connected with resistance furnace by means of screw, the lifting device whose height is adjustable can be inserted from inserting hole of the heat-insualting cover. Said resistance furnace mainly includes heating element and heat-insulating furnace shell, the heating element is placed in furnace cavity of resistance furance, and between the furnace cavity and furnace shell the ceramic cotton of packaged. Its structure is simple, and its impurity-removing efficiency can be up to 84%.
Description
Technical scheme: what the present invention relates to is a kind of device of purification to elimiante foreign impurity from aluminium melt, and particularly a kind of device of filtration, purification nonmetallic inclusions from aluminum melts belongs to casting field.
Background technology: aluminium is a kind of very active metal, and easy and steam reaction generates hydrogen and oxide inclusion (Al in fusion process
2O
3).These non-metallic inclusions are very big to the aluminum products performance hazards, and therefore, aluminium melt purifying is one of main path that improves the aluminium quality.Flux method remove be mingled with gas be a kind of aluminium melt purifying means commonly used, have advantages such as technology is easy, expense is cheap, therefore, it is necessary to research and develop novel degasification, impurity removing technology.The general content of inclusion in the commercial-purity aluminium is all more than 0.1%, and the size major part of inclusion all is greater than 10 microns.The international level of removing inclusion, the inclusion content in the molten aluminium is 0.02%, the size of inclusion is less than 7 microns.Flux method is a kind of comparatively easy and effective means, and its decontamination effect improving depends primarily on flux and forms and corresponding treatment process.By literature search, people such as Fu Gaosheng " Special Processes of Metal Castings and non-ferrous alloy " the 1st phase in 1998, write articles " being used for efficient flux and the effect research thereof that purifies of fine aluminium ", description is placed on aluminium ingot above the fused salt mixt, when when aluminium ingot melts, passing the molten flux layer, contact inclusion on aluminium melt surface to be removed the equipment that purifies molten aluminium easily mainly be resistance furnace and plumbago crucible with flux, the shortcoming of this equipment is when purifying, molten aluminium passes the molten flux layer with large-size, molten aluminium can not fully contact with flux, drip the intermediary inclusion and can not contact with molten flux and be rolled in aluminium, impurity-eliminating effect is not fine.
Summary of the invention: the present invention is directed to the deficiencies in the prior art and defective, a kind of device of filtration, purification nonmetallic inclusions from aluminum melts is provided, flux is fully contacted with molten aluminium, thereby make molten flux reach the efficient impurity removal effect.Of the present inventionly mainly comprise: resistance furnace, crucible, agitator, insulation cover, steel drum and adjustable for height lifting device, at first steel drum is enclosed within the crucible outside, be arranged in the resistance furnace then, fix with refractory materials, with screw rod insulation cover and resistance furnace are coupled together, adjustable for height lifting device is inserted from the insertion mouth of insulation cover, resistance furnace mainly comprises: heating unit, insulation furnace shell, heating unit is arranged on resistance furnace burner hearth inboard, clogs with ceramic wool between resistance furnace burner hearth and insulation furnace shell.Steel drum is enclosed within the plumbago crucible outside closely, then steel drum and plumbago crucible are placed in the resistance furnace burner hearth, the runner of both direction is set at two plumbago crucible places, with refractory materials runner and plumbago crucible is connected together, agitator and adjustable for height lifting device connect together with screw rod.Crucible is two plumbago crucibles; because the flux that has melted can penetrate plumbago crucible; so the outside at crucible is provided with steel drum; as protector, control flux infiltrate crucible touches heating unit, causes the damage of process furnace; the runner of both direction is set between two crucibles; can conveniently shift molten aluminium, but not open bell again as far as possible, avoid the too fast of furnace temperature decline like this.The rotating speed of agitator can be regulated rotating speed according to practical situation, and the height of agitator can regulate, and makes impeller be in flux layer all the time.Molten aluminium is poured in the active flux of rotation, molten aluminium is rotated shearing force that flux produces and is dispersed into tiny aluminium and drips, flux can be contacted fully with molten aluminium, aluminium drips the flux that the aluminium film of lip-deep inclusion is rotated easily and washes away, inclusion enters into flux easily like this, thereby reaches efficient impurity removal.
Principle of work of the present invention is: at first put into flux and aluminium ingot respectively in two crucibles, and put into insulating covering agent in the crucible of aluminium ingot is housed.Next connects the process furnace power supply, after flux and aluminium ingot all melt, again agitator is put into molten flux, with spoon molten aluminium adorn, divides batch to pour runner into and enters and rotate in the molten flux.Wait until that at last the molten aluminium transfer is over, and takes out agitator again.Earlier active flux and aluminium ingot are put into two plumbago crucibles of stove respectively when device is specifically worked, in the plumbago crucible of aluminium ingot is housed, also will put covering flux (composition is the same with the active flux that filters usefulness).After flux and aluminium ingot all melt, agitator is put into the flux plumbago crucible, and then molten aluminium is poured in the flux of rotation.Because in agitation and filtration molten aluminium process, the liquid level of flux can and raise along with the molten aluminium adding.Therefore, the support of regulating the agitator height is arranged, the impeller of agitator is in the flux layer all the time.After molten aluminium is all transferred to the flux crucible, again promoting agent is put into the molten aluminium plumbago crucible that has been transferred, by the time after flux melts, again agitator is put into the plumbago crucible that flux is housed from the agitator inlet, and then molten aluminium is poured in the flux of rotation.Filtration each time all is the operation above the repetition, can make in the molten aluminium inclusion constantly be distributed to aluminium to drip on the surface by purifying repeatedly, simultaneously aluminium drops in and also can redistribute the inclusion of aluminium in dripping in the flux of rotation, thereby also is that inclusion during aluminium drips is also had an opportunity to be distributed to aluminium and dripped on the surface.Aluminium drips lip-deep inclusion and can pass aluminium film-flux interface and enter in the flux layer like this, with 50%NaCL-50%KCl (wt%) flux refining molten aluminium, when the filtration number of times reaches 4 times, dust removal rate reaches 84%, can remove the inclusion more than 7 microns effectively, therefore stir the flux filtration molten aluminium improves the flux removal of impurities from kinetics effect.
The present invention has substantive distinguishing features and marked improvement, because the density of molten aluminium is greater than the density of flux, when using this equipment stirring active flux aluminum filtration melt, aluminium drips and can sink to below the molten flux, and flux layer have enough thickness avoid below rotation above molten aluminium translates into, avoid oxygen and steam reaction in molten aluminium and the air like this and generation secondary inclusion thing.Stir the flux filtration molten aluminium, can make in the molten aluminium inclusion fully touch molten flux and with reaction, reaction product is dissolved in the molten flux, avoids turning back in the molten aluminium again.Dust removal rate can reach 84% in this way.Structural device of the present invention is simple, easy to operate, dust removal rate is high and low cost and other advantages.
Description of drawings: Fig. 1 structural representation of the present invention
Embodiment: as shown in Figure 1, the present invention mainly comprises: resistance furnace 1, crucible 2, agitator 3, insulation cover 4, steel drum 5 and adjustable for height lifting device 6, at first steel drum 5 is enclosed within crucible 2 outsides, be arranged on then in the resistance furnace 1, fix with refractory materials, with screw rod insulation cover 4 and resistance furnace 1 are coupled together, adjustable for height lifting device 6 is inserted from the insertion mouth of insulation cover 4, resistance furnace 1 mainly comprises: heating unit 7, insulation furnace shell 8, heating unit 7 is arranged on resistance furnace 1 burner hearth inboard, clogs with ceramic wool between resistance furnace 1 burner hearth and insulation furnace shell 2.Steel drum 5 is enclosed within plumbago crucible 2 outsides closely, then steel drum 5 and plumbago crucible 2 are placed in resistance furnace 1 burner hearth, the runner of both direction is set at two plumbago crucible 2 places, with refractory materials runner and plumbago crucible 2 are connected together, agitator 3 connects together with adjustable for height lifting device 6 usefulness screw rods.
Claims (2)
1, a kind of device of filtration, purification nonmetallic inclusions from aluminum melts, mainly comprise: resistance furnace (1), crucible (2), agitator (3), insulation cover (4), it is characterized in that also comprising: steel drum (5) and adjustable for height lifting device (6), at first steel drum (5) is enclosed within crucible (2) outside, be arranged on then in the resistance furnace (1), fix with refractory materials, with screw rod insulation cover (4) and resistance furnace (1) are coupled together, adjustable for height lifting device (6) is inserted from the insertion mouth of insulation cover (4), resistance furnace (1) mainly comprises: heating unit (7), insulation furnace shell (8), heating unit (7) is arranged on resistance furnace (1) burner hearth inboard, clogs with ceramic wool between resistance furnace (1) burner hearth and insulation furnace shell (2).
2, the device of this filtration, purification nonmetallic inclusions from aluminum melts according to claim 1, it is characterized in that steel drum (5) is enclosed within plumbago crucible (2) outside closely, then steel drum (5) and plumbago crucible (2) are placed in resistance furnace (1) burner hearth, locate to be provided with the runner of both direction at two plumbago crucibles (2), with refractory materials runner and plumbago crucible (2) are connected together, agitator (3) connects together with screw rod with adjustable for height lifting device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011392509A CN1161481C (en) | 2001-12-27 | 2001-12-27 | Filter for eliminating non-metallic foreign impurity in aluminium melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011392509A CN1161481C (en) | 2001-12-27 | 2001-12-27 | Filter for eliminating non-metallic foreign impurity in aluminium melt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1362530A true CN1362530A (en) | 2002-08-07 |
| CN1161481C CN1161481C (en) | 2004-08-11 |
Family
ID=4675172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011392509A Expired - Fee Related CN1161481C (en) | 2001-12-27 | 2001-12-27 | Filter for eliminating non-metallic foreign impurity in aluminium melt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161481C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030289A (en) * | 2013-03-04 | 2014-09-10 | 青海黄河上游水电开发有限责任公司新能源分公司 | Graphite part purifying device |
| US9284622B2 (en) | 2011-03-23 | 2016-03-15 | Guangxi University | Device and method for removing impurities in aluminum melt |
| CN107460342A (en) * | 2016-06-02 | 2017-12-12 | 百色学院 | A kind of use for laboratory purifies aluminium liquid smelting furnace |
| CN109827428A (en) * | 2019-02-22 | 2019-05-31 | 赵佳乐 | A kind of manufacture of iron and steel by melting furnace |
-
2001
- 2001-12-27 CN CNB011392509A patent/CN1161481C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9284622B2 (en) | 2011-03-23 | 2016-03-15 | Guangxi University | Device and method for removing impurities in aluminum melt |
| CN104030289A (en) * | 2013-03-04 | 2014-09-10 | 青海黄河上游水电开发有限责任公司新能源分公司 | Graphite part purifying device |
| CN104030289B (en) * | 2013-03-04 | 2015-09-02 | 青海黄河上游水电开发有限责任公司新能源分公司 | A kind of graphite member refining plant |
| CN107460342A (en) * | 2016-06-02 | 2017-12-12 | 百色学院 | A kind of use for laboratory purifies aluminium liquid smelting furnace |
| CN109827428A (en) * | 2019-02-22 | 2019-05-31 | 赵佳乐 | A kind of manufacture of iron and steel by melting furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1161481C (en) | 2004-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102181658B (en) | Device and method for removing impurities in aluminum melt | |
| CN110280746B (en) | Method for single-source high-intensity ultrasonic-assisted casting of large-specification 2XXX series aluminum alloy round ingot | |
| CN107574322B (en) | A kind of method that electron-beam smelting technology High Purity prepares nickel base superalloy | |
| JP4433610B2 (en) | Method and apparatus for purifying silicon | |
| CN102492852B (en) | Alloy melt purifier and its method | |
| CN101239384B (en) | Separation method of casting residue and molten steel | |
| CN109022826B (en) | Reduction and refining integrated smelting system | |
| CN108568514A (en) | A kind of devices and methods therefor controlling vacuum induction melting field trash and slag inclusion | |
| CN105886809B (en) | A kind of high-strength heat-resistant magnesium alloy method of smelting and melting structure | |
| CN1161481C (en) | Filter for eliminating non-metallic foreign impurity in aluminium melt | |
| JPWO2008149985A1 (en) | Solidification method of metallic silicon | |
| CN110317923A (en) | A kind of method for making steel | |
| CN202081152U (en) | Flux jet device for removing impurities from molten aluminum | |
| CN201003067Y (en) | Highly pure aluminium extraction apparatus | |
| US4349381A (en) | Recovery of heavy metals from spent alumina | |
| CN107699646B (en) | Stainless steel slag granulating device and method | |
| CN111496242A (en) | Turbulent flow type aluminum alloy melt deslagging and filtering device and using method thereof | |
| CN214327828U (en) | Hierarchical purification device of silicon-aluminum-iron alloy | |
| CN110004257A (en) | Molten iron purification technology is used in a kind of casting of short route | |
| CN1139666C (en) | Stirring active flux for filtering purification to elimiante foreign impurity from aluminium melt | |
| CN109702153A (en) | Wind-power spherulitic graphite cast iron wheel hub is poured control method and improves technique | |
| CN219824316U (en) | Online fuse-element of aluminium ingot purifies dross removal mechanism | |
| CN116179905B (en) | Large-specification high-performance Al-Mg-Zn aluminum alloy round ingot and casting method thereof | |
| CN114835125A (en) | Method for preparing high-purity silicon/silicon alloy by induction smelting of high-silicon waste and induction smelting furnace | |
| CN1362531A (en) | Filtering process of eliminating non-metallic foreign impurity ion aluminium melt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |