CN106868316A - A kind of polynary impurity element synchronous purification method and device of secondary aluminium - Google Patents
A kind of polynary impurity element synchronous purification method and device of secondary aluminium Download PDFInfo
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- CN106868316A CN106868316A CN201710074079.6A CN201710074079A CN106868316A CN 106868316 A CN106868316 A CN 106868316A CN 201710074079 A CN201710074079 A CN 201710074079A CN 106868316 A CN106868316 A CN 106868316A
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- 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
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- 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
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- 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
- C22B21/06—Obtaining aluminium refining
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Abstract
The invention provides a kind of polynary impurity element synchronous purification method and device of secondary aluminium, including：1：Melting furnace temperature is risen to 680 800 DEG C, aluminium scrap in stove is melted；2：After aluminium liquid insulation in smelting furnace, regeneration aluminium liquid enters chute；3：Regeneration aluminium liquid is cooled down and stirred in convective tank, the diffuser efficiency of the impurity element that liquid phase forward position separates out at reinforcing solid liquid interface；4：When remaining aluminium liquid is 5 65% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is discharged by chute outage, be the Regenerated Aluminium Ingot after purification in chute；5：The Regenerated Aluminium Ingot purified in chute is heated to more than fusing point, after aluminium to be regenerated is completely melt, standing furnace is introduced into by outage, realize prepared by secondary aluminium alloy.Present invention purification processing step is succinct, and impurity element purification efficiency is high, while having production efficiency higher.
Description
Technical field
The present invention relates to metallurgical technology field, specifically, a kind of polynary impurity element of secondary aluminium is referred to synchronous net
Change method and device.
Background technology
At present, impurity element removal is difficult in aluminium scrap, therefore most of aluminium scrap can only produce composition by simple remelting
It is required that loose primary pack alloy ingot.To prepare the aluminium alloy with high added value by aluminium scrap, then need addition big
The Raw Aluminium of amount is diluted to meet aluminium alloy nominal composition.Produce big Raw Aluminium resource consumption, high energy consumption and ring
Border pollution is big, and secondary aluminium actual production energy consumption just corresponds to the 3%-5% of Raw Aluminium energy consumption.If secondary aluminium can be controlled
Composition, removes or is greatly reduced the impurity element concentration in secondary aluminium, and economic benefit and environmental benefit are huge.In secondary aluminium impurity
Element purification aspect, it is main that Ca, Sr, Na, Mg and Li element are removed by flux method.But because aluminium is a kind of active metal, mesh
Preceding flux method cannot remove the element such as Zn, Fe, Si, Mn, Cu in aluminium alloy.Additionally, there are two big major defects in flux method：(1)
Preferable purification result is reached, flux consumption is big；(2) final discarded slag contains substantial amounts of fluoride and chloride,
Poisonous hazardous gas can be produced when processing slag, to environmentally undesirable.
The directional solidification process of metal solidification process especially fine aluminium are controlled using segregation method, so as to influence to be carried
Impurity element distribution in pure aluminium crystal, can obtain high-purity aluminium ingot.Found through the literature search to prior art, Japan is specially
Sharp JP, 56-133434 " Manufacture of high purity aluminum " are mainly oriented by ultrasound interference fine aluminium liquid
Liquid-solid boundary in process of setting, so as to control the impurity element of purified aluminium ingot to be distributed, is obtained rafifinal.The invention is mainly
Ultrasonication is introduced by ultrasonic amplitude transformer near liquid-solid boundary, while the strictly temperature of control heating zone and cooling zone.Should
Invention ultrasonication mode is simple, and ultrasonication is limited in scope, and is limited to interface viscous layer influence so that refining effect is limited.
Additionally, Chinese invention patent ZL20110443361.X " a kind of preparation method of rafifinal ", leads under vacuum conditions
Cross temperature of aluminum liquid in control crucible so that freezing interface advances from the circumferential center of crucible four, from crucible top to bottom, realizes
Segregation is purified, and eventually through repeatedly purifying repeatedly, obtains rafifinal.The whole purification process of the invention is carried out in vacuum environment,
The device manipulation that crucible bottom is used to discharge remaining aluminium liquid is complicated, low production efficiency；Due to using single-unit furnace purification, it is impossible to realize
Continuous production.
The segregation that above-mentioned existing method cannot be applied to secondary aluminium field is purified, at present still for discovery is led for secondary aluminium
The segregation purification technique in domain.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of polynary impurity element synchronous purification of secondary aluminium
Method, purification processing step is succinct, and impurity element purification efficiency is high, while having production efficiency higher.
According to the first aspect of the invention, there is provided a kind of polynary impurity element synchronous purification method of secondary aluminium, it is including as follows
Step：
Step 1：Melting furnace temperature is risen to 680-800 DEG C, aluminium scrap in stove is melted；
Step 2：After by aluminium liquid insulation more than 10min in smelting furnace, chute is entered by aluminium liquid is regenerated in smelting furnace, will regenerated
Temperature of aluminum liquid is controlled at least 5 DEG C more than aluminium scrap melting temperature；
Step 3：Regeneration aluminium liquid is cooled down and stirred in convective tank, the impurity that liquid phase forward position separates out at reinforcing solid liquid interface
The diffuser efficiency of element, reduces influence of the constitutional supercooling to plane interface growth；
Step 4：When remaining aluminium liquid is 5-65% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is passed through
Chute outage is discharged, and is the Regenerated Aluminium Ingot after purification in chute；
Step 5：The Regenerated Aluminium Ingot purified in chute is heated to more than fusing point, after aluminium to be regenerated is completely melt, is passed through
Outage is introduced into standing furnace, realizes prepared by secondary aluminium alloy.
Preferably, in step 2, after aluminium liquid in smelting furnace is incubated into 10-30min, aluminium liquid will be regenerated in smelting furnace and will enter stream
Groove.
Preferably, in step 2, will regeneration temperature of aluminum liquid control in 5-30 DEG C of the aluminium scrap melting temperature above.
Preferably, in step 3, the cooling and stirring are realized by air-cooling apparatus, agitating device respectively.It is highly preferred that
Regeneration aluminium liquid is cooled down and stirred in the air-cooling apparatus and agitating device convective tank, based on regeneration aluminium liquid Composition Control chute
Temperature and middle part cooling gas air-flow, make the both sides of chute and bottom form thermograde with middle and upper part, so as to realize aluminium liquid from
It is middle to be solidified to both sides, from top to bottom, by component segregation, make impurity element rich in the aluminium liquid of chute both sides and bottom
Collect, aluminium liquid convection current is produced using agitating device during regeneration aluminium liquid consecutive solidification, the precipitation of liquid phase forward position is miscellaneous at reinforcing solid liquid interface
The diffuser efficiency of prime element, reduces influence of the constitutional supercooling to plane interface growth.
The present invention is a kind of secondary aluminium impurity element synchronous purification method, secondary aluminium segregation purification and fine aluminium segregation purification
Differ primarily in that：(1) impurity element concentration is high in secondary aluminium, and freezing interface forward position has constitutional supercooling, therefore in solid-liquid circle
Realize that plane interface growth is more difficult to control at face；(2) consider from economic factor, compared with purification prepares rafifinal, secondary aluminium segregation
Purification requires production efficiency higher.The present invention solves these technical problems by using above-mentioned step.
According to the second aspect of the invention, there is provided a kind of polynary impurity element synchronous purification device of secondary aluminium, including：Melting
Furnace body, flow control plug, chute, agitating device, body of heater heating element heater, air-cooling apparatus；Wherein：
Body of heater heating element heater is provided with the smelting furnace body, the body of heater heating element heater is by the smelting furnace body
Intend the aluminium waste fusing of purification, form regeneration aluminium liquid；
The bottom side of the smelting furnace body of heater is provided with flow control plug, for controlling the regeneration in the smelting furnace body
The flow of aluminium liquid, and chute is introduced directly into by aluminium liquid is regenerated by flow control plug；
The chute is provided with air-cooling apparatus and agitating device, for regeneration aluminium liquid in the chute to be cooled down and stirred
Mix, the diffuser efficiency of the impurity element that liquid phase forward position separates out at reinforcing solid liquid interface forms remaining aluminium liquid and purifying regeneration aluminium
The liquid-solid mixture of ingot, remaining aluminium liquid is discharged from the chute, is the Regenerated Aluminium Ingot after purification in the chute.
Further, the chute is provided with chute heating element heater, by the chute heating element heater to the regeneration after purification
Aluminium ingot carries out heating fusing, and aluminium liquid introduces standing furnace after the purification of formation, realizes prepared by secondary aluminium alloy.
Further, the chute is provided with aluminium liquid outage after dirty aluminium liquid outage, purification, is respectively used to discharge remaining dirty
Aluminium liquid after aluminium liquid, purification, aluminium liquid after the purification is introduced standing furnace by aluminium liquid outage after the purification.
Further, the chute is located at the smelting furnace body of heater side, and height is less than the smelting furnace
Body, chute is introduced in order to the regeneration aluminium liquid.
The present invention realizes the synchronous purification of polynary impurity element based on directional solidification technique, by temperature in precise control chute
Degree field, realizes that freezing interface order is advanced, and final residual aluminium liquid is retained in chute top both sides and is discharged by chute outage,
Using the solid phase secondary aluminium waste heat for having purified, by chute calandria to be heated fusing again compared with low energy consumption, aluminium liquid passes through
Chute outage realizes that secondary aluminium alloy is cast into standing furnace.In directional solidification process, stirred by effective machinery (electromagnetism)
Mixing carries out forced convertion to freezing interface viscous layer, thermograde near control freezing interface, accelerates liquid in directional solidification process
The mixing and diffusion of impurity element are separated out at liquid/solid interface, purification efficiency is farthest improved.
Compared with prior art, the present invention has following beneficial effect：
Secondary aluminium purification processing step of the present invention is succinct, and impurity element purification efficiency is excellent, while having production higher
Efficiency, greatly reduces the technique primary aluminum consumption needed for dilution concentration of element when prepared by high-quality secondary aluminium, and energy saving subtracts simultaneously
Waste gas and red mud discharge caused by few aluminum production.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the purifier structural representation that the embodiment of the present invention is used；
Fig. 2 is A-A sectional views shown in Fig. 1；
In figure, 1- bodies of heater, 2- flow control plugs, 3- chutes, 4- agitating devices, the dirty aluminium liquid outages of 5-, aluminium after 6- purifications
Liquid outage, 7- body of heater heating element heaters, 8- purifying regeneration aluminium ingots, 9- regeneration aluminium liquids, 10- air-cooling apparatus, 11- chute heating units
Part.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
As shown in Figure 1-2, it is a kind of polynary impurity element synchronous purification device of secondary aluminium, the device includes：Smelting furnace
Body 1, flow control plug 2, chute 3, agitating device 4, body of heater heating element heater 7, air-cooling apparatus 10, chute heating element heater 11；Wherein：
It is provided with body of heater heating element heater 7 in the smelting furnace body of heater 1, the body of heater heating element heater 7 is by the smelting furnace body of heater 1
The aluminium waste fusing of interior plan purification, forms regeneration aluminium liquid 9, and the melt temperature control of regeneration aluminium liquid is more than fusing point；
The bottom side of the smelting furnace body of heater 1 is provided with flow control plug 2, for controlling in the smelting furnace body of heater 1
The flow of aluminium liquid 9 is regenerated, and chute 3 is introduced directly into by aluminium liquid is regenerated by flow control plug 2；
The chute 3 is provided with air-cooling apparatus 10 and agitating device 4, cold for being carried out to regeneration aluminium liquid 9 in the chute 3
But and stirring, the diffuser efficiency of the impurity element that liquid phase forward position separates out at reinforcing solid liquid interface, form remaining aluminium liquid and purified
The liquid-solid mixture of Regenerated Aluminium Ingot, is the Regenerated Aluminium Ingot after purification by the discharge of remaining aluminium liquid, in the chute 3；The chute 3 sets
There is chute heating element heater 11, then heating fusing is carried out by the Regenerated Aluminium Ingot after 11 pairs of purifications of the chute heating element heater, formed
Purification after aluminium liquid introduce standing furnace.
The chute 3 is provided with aluminium liquid outage 6 after dirty aluminium liquid outage 5, purification, be respectively used to the remaining dirty aluminium liquid of discharge,
Aluminium liquid after purification, aluminium liquid after the purification is introduced standing furnace by aluminium liquid outage 6 after the purification.
The chute 3 is located at the side of smelting furnace body of heater 1, and height is less than the smelting furnace body of heater 1, so as to
Chute 3 is introduced in the regeneration aluminium liquid 9.
The agitating device 4, air-cooling apparatus 10 are located at the upper center of the chute 3, and the chute heating element heater 11 is located at
The both sides and surrounding bottom of the chute 3, so as to form thermograde in the both sides and bottom of the chute and middle and upper part.
Specifically, in the embodiment of a concrete application, the polynary impurity element synchronization of secondary aluminium is carried out using said apparatus
Purify, specific operation process is：
The aluminium waste for intending purification is put into smelting furnace body of heater 1, body of heater heating element heater 7 is opened, furnace temperature is risen into 680-800
DEG C, by the aluminium scrap fusing in body of heater 1,10-30min is incubated after aluminium waste is completely melt and realizes that regeneration aluminium liquid composition and temperature are equal
Even distribution, the temperature of aluminium liquid in body of heater 1 is controlled in aluminium scrap melting temperature above 5-30 by the control system of body of heater heating element heater 7
DEG C, chute 3 is then introduced directly into by aluminium liquid 9 is regenerated by the flow control plug 2 on smelting furnace 1；
After aluminium liquid to be regenerated enters chute 3, opening regeneration aluminium liquid 9 in air-cooling apparatus 10 and the convective tank 3 of agitating device 4 is carried out
Cooling and stirring, based on regeneration aluminium liquid Composition Control chute temperature and middle part cooling gas (compressed air) air-flow, make chute 3
Both sides and bottom form thermograde with middle and upper part, so as to realize that aluminium liquid solidifies from centre to both sides, from top to bottom, pass through
Component segregation, makes impurity element be enriched with the aluminium liquid of chute both sides and bottom, is filled using stirring during regeneration aluminium liquid consecutive solidification
Generation aluminium liquid convection current is put, the diffuser efficiency of the impurity element that liquid phase forward position separates out, reduces constitutional supercooling pair at reinforcing solid liquid interface
The influence of plane interface growth；
When residual regeneration aluminium liquid 9 is 5-65% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot 8, by remaining dirty liquid (again
Cast alumin(i)um liquid) discharged by chute outage 5, the Regenerated Aluminium Ingot 8 after being purified in chute 3, the unit such as Fe, Si, Mg, Cu, Zn, Mn
Then plain purification efficiency is arranged in the temperature-controlling system of heating element heater 11 of the bottom of chute 3 and surrounding by chute up to 40%-80%
The Regenerated Aluminium Ingot purified in 3 is heated to 5-30 DEG C of the fusing point above, and solid waste heat purified again when reheating will be greatly lowered
Energy consumption needed for cast alumin(i)um fusing；
After aluminium to be regenerated is completely melt, standing furnace is introduced into by aluminium liquid outage 6 after purification, for secondary aluminium alloy
It is prepared by ingot casting.
Embodiment 2
The present embodiment provides a kind of polynary impurity element synchronous purification method of secondary aluminium, specially：
5kg aluminium scraps are put into smelting furnace, furnace temperature rises to 680 DEG C by the aluminium scrap fusing in body of heater, and aluminium scrap will after being completely melt
Temperature of aluminum liquid is controlled 15 DEG C more than aluminium scrap melting temperature, and flow control plug is opened after insulation 10min by secondary aluminium in smelting furnace
Liquid enters chute, opens regeneration aluminium liquid in air-cooling apparatus and agitating device convective tank and is cooled down and stirred；Treat residual regeneration aluminium
When liquid is 15% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is discharged by chute outage, be purified
Regenerated Aluminium Ingot afterwards, Fe, Si, Mg, Cu, Zn, Mn element purification efficiency is respectively：68%th, 50%, 64%, 75%, 63%, 46%.
The present embodiment realizes that freezing interface order is advanced, final residual aluminium by controlling temperature field in secondary aluminium spout
Liquid is retained in chute top both sides and is discharged by chute outage, using the solid phase secondary aluminium waste heat for having purified, by chute
To be heated fusing again compared with low energy consumption, aluminium liquid realizes that secondary aluminium alloy is poured to calandria by chute outage into standing furnace
Casting.In directional solidification process, forced convertion is carried out to freezing interface viscous layer by effective mechanical agitation, control freezing interface
Neighbouring thermograde, separates out the mixing and diffusion of impurity element, farthest at liquid-solid boundary in quickening directional solidification process
Improve purification efficiency.
Embodiment 3
The present embodiment provides a kind of polynary impurity element synchronous purification method of secondary aluminium, specially：
5kg aluminium scraps are put into smelting furnace, furnace temperature rises to 740 DEG C by the aluminium scrap fusing in body of heater, and aluminium scrap will after being completely melt
Temperature of aluminum liquid is controlled 5 DEG C more than aluminium scrap melting temperature, and opening flow control plug after insulation 20min will regenerate aluminium liquid in smelting furnace
Into chute, open regeneration aluminium liquid in air-cooling apparatus and agitating device convective tank and cooled down and stirred；Treat residual regeneration aluminium liquid
When mass ratio is 30% admittedly with the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is discharged by chute outage, after being purified
Regenerated Aluminium Ingot, Fe, Si, Mg, Cu, Zn, Mn element purification efficiency is respectively：66%th, 45%, 62%, 72%, 60%, 45%.
Embodiment 4
The present embodiment provides a kind of polynary impurity element synchronous purification method of secondary aluminium, specially：
5kg aluminium scraps are put into smelting furnace, furnace temperature rises to 800 DEG C by the aluminium scrap fusing in body of heater, and aluminium scrap will after being completely melt
Temperature of aluminum liquid is controlled 30 DEG C more than aluminium scrap melting temperature, and flow control plug is opened after insulation 30min by secondary aluminium in smelting furnace
Liquid enters chute, opens regeneration aluminium liquid in air-cooling apparatus and agitating device convective tank and is cooled down and stirred；Treat residual regeneration aluminium
When liquid is 5% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is discharged by chute outage, after being purified
Regenerated Aluminium Ingot, Fe, Si, Mg, Cu, Zn, Mn element purification efficiency is respectively：58%th, 45%, 55%, 65%, 60%, 40%.
Embodiment 5
The present embodiment provides a kind of polynary impurity element synchronous purification method of secondary aluminium, specially：
5kg aluminium scraps are put into smelting furnace, furnace temperature rises to 800 DEG C by the aluminium scrap fusing in body of heater, aluminium scrap be completely melt after simultaneously
By temperature of aluminum liquid control 5 DEG C more than aluminium scrap melting temperature, flow control plug is opened after insulation 30min by secondary aluminium in smelting furnace
Liquid enters chute, opens regeneration aluminium liquid in air-cooling apparatus and agitating device convective tank and is cooled down and stirred；Treat residual regeneration aluminium
When liquid is 65% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is discharged by chute outage, be purified
Regenerated Aluminium Ingot afterwards, Fe, Si, Mg, Cu, Zn, Mn element purification efficiency is respectively：80%th, 52%, 66%, 78%, 68%, 50%.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (10)
1. a kind of polynary impurity element synchronous purification method of secondary aluminium, it is characterised in that comprise the following steps：
Step 1：Melting furnace temperature is risen to 680-800 DEG C, aluminium scrap in stove is melted；
Step 2：After by aluminium liquid insulation more than 10min in smelting furnace, by regeneration temperature of aluminum liquid control more than aluminium scrap melting temperature
At least 5 DEG C, chute is entered by aluminium liquid is regenerated in smelting furnace；
Step 3：Regeneration aluminium liquid is cooled down and stirred in convective tank, the impurity element that liquid phase forward position separates out at reinforcing solid liquid interface
Diffuser efficiency, reduce influence of the constitutional supercooling to plane interface growth；
Step 4：When remaining aluminium liquid is 5-65% with the solid mass ratio of the liquid of purifying regeneration aluminium ingot, remaining dirty liquid is passed through into chute
Outage is discharged, and is the Regenerated Aluminium Ingot after purification in chute；
Step 5：The Regenerated Aluminium Ingot purified in chute is heated to more than fusing point, after aluminium to be regenerated is completely melt, by discharge opeing
Hole is introduced into standing furnace, is prepared for secondary aluminium alloy ingot casting.
2. the polynary impurity element synchronous purification method of secondary aluminium according to claim 1, it is characterised in that in step 2, will
In smelting furnace flow control plug is opened after aluminium liquid insulation 10-30min.
3. the polynary impurity element synchronous purification method of secondary aluminium according to claim 1, it is characterised in that in step 2, will
Regeneration temperature of aluminum liquid control is in 5-30 DEG C of the aluminium scrap melting temperature above.
4. the polynary impurity element synchronous purification method of secondary aluminium according to claim any one of 1-3, it is characterised in that step
In rapid 3, the cooling and stirring are realized by air-cooling apparatus, agitating device respectively.
5. the polynary impurity element synchronous purification method of secondary aluminium according to claim 4, it is characterised in that the air cooling dress
Put and cooled down and stirred with regeneration aluminium liquid in agitating device convective tank, based on regeneration aluminium liquid Composition Control chute temperature and middle part
Cooling gas air-flow, makes the both sides of chute and bottom form thermograde with middle and upper part, so as to realize aluminium liquid from centre to both sides,
Solidified from top to bottom, by component segregation, impurity element is enriched with the aluminium liquid of chute both sides and bottom, regenerate aluminium liquid
Aluminium liquid convection current is produced using agitating device during consecutive solidification, the diffusion of the impurity element that liquid phase forward position separates out at reinforcing solid liquid interface
Efficiency, reduces influence of the constitutional supercooling to plane interface growth.
6. the polynary impurity element synchronous purification device of a kind of secondary aluminium, it is characterised in that including：Smelting furnace body of heater, flow control
Plug, chute, agitating device, body of heater heating element heater, air-cooling apparatus；Wherein：
Body of heater heating element heater is provided with the smelting furnace body, the body of heater heating element heater is net by the plan in the smelting furnace body
The aluminium waste fusing of change, forms regeneration aluminium liquid；
The bottom side of the smelting furnace body of heater is provided with flow control plug, for controlling the regeneration aluminium liquid in the smelting furnace body
Flow, and by flow control plug by regenerate aluminium liquid be introduced directly into chute；
The chute is provided with air-cooling apparatus and agitating device, for regeneration aluminium liquid in the chute to be cooled down and stirred,
The diffuser efficiency of the impurity element that liquid phase forward position separates out at reinforcing solid liquid interface, forms remaining aluminium liquid and purifying regeneration aluminium ingot
Liquid-solid mixture, remaining aluminium liquid is discharged from the chute, is the Regenerated Aluminium Ingot after purification in the chute.
7. the polynary impurity element synchronous purification device of secondary aluminium according to claim 6, it is characterised in that the chute sets
There is chute heating element heater, heating fusing, the purification of formation are carried out to the Regenerated Aluminium Ingot after purification by the chute heating element heater
Aluminium liquid introduces standing furnace afterwards, realizes prepared by secondary aluminium alloy.
8. the polynary impurity element synchronous purification device of secondary aluminium according to claim 7, it is characterised in that the chute sets
There is aluminium liquid outage after dirty aluminium liquid outage, purification, aluminium liquid after the remaining dirty aluminium liquid of discharge, purification is respectively used to, after the purification
Aluminium liquid after the purification is introduced standing furnace by aluminium liquid outage.
9. the polynary impurity element synchronous purification device of secondary aluminium according to claim any one of 6-8, it is characterised in that institute
Chute is stated positioned at the smelting furnace body of heater side, and height is less than the smelting furnace body of heater, draws in order to the regeneration aluminium liquid
Enter chute.
10. the polynary impurity element synchronous purification device of secondary aluminium according to claim any one of 6-8, it is characterised in that
The agitating device, air-cooling apparatus are located at the chute upper center, and the chute heating element heater is located at the bottom of the chute
And surrounding bottom, so as to form thermograde in the both sides and bottom of the chute and middle and upper part.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110278713A (en) * | 2018-01-17 | 2019-09-24 | 株式会社恩凯金属 | Aluminium melting system and its method of operation |
| CN113151702A (en) * | 2020-12-30 | 2021-07-23 | 福建省金瑞高科有限公司 | Preparation method of aluminum alloy material for semi-solid die casting of 5G radiating shell |
| CN113699383A (en) * | 2021-09-09 | 2021-11-26 | 中国兵器工业第五九研究所 | Method for purifying aluminum alloy melt based on thermal buoyancy |
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| CN113151702A (en) * | 2020-12-30 | 2021-07-23 | 福建省金瑞高科有限公司 | Preparation method of aluminum alloy material for semi-solid die casting of 5G radiating shell |
| CN113699383A (en) * | 2021-09-09 | 2021-11-26 | 中国兵器工业第五九研究所 | Method for purifying aluminum alloy melt based on thermal buoyancy |
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