CN1126822C - Compound purifyier for aluminium and aluminium alloy melt - Google Patents
Compound purifyier for aluminium and aluminium alloy melt Download PDFInfo
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- CN1126822C CN1126822C CN00127938A CN00127938A CN1126822C CN 1126822 C CN1126822 C CN 1126822C CN 00127938 A CN00127938 A CN 00127938A CN 00127938 A CN00127938 A CN 00127938A CN 1126822 C CN1126822 C CN 1126822C
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- filtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The present invention relates to a composite purifying device for aluminium and aluminium alloy melt, which mainly comprises a flow guiding device, a filtering and purifying device, a gas medium purifying device, purifying chambers, a flow discharging device and a furnace body supporting device, wherein the filtering and purifying device is composed of three foamed ceramic filtering plates and two fusing agent filtering layers; the foamed ceramic filtering plates are arranged in passages between the bottom of a partition wall and a furnace body; the upper parts of a front purifying chamber and a rear purifying chamber are respectively provided with the foamed ceramic filtering plates; the fusing agent filtering layer are positioned at lower ends of a front filtering plate and a rear filtering plate; the gas medium purifying device is composed of a pulse gas source inlet and blowing plugs; the blowing plugs are respectively arranged at the bottom parts of the front purifying chamber and the rear purifying chamber.
Description
What the present invention relates to is a kind of alloy melt refining plant, and particularly a kind of aluminium and aluminium alloy melt composite purification device belong to metallurgical class field.
Cleaning molten is the gordian technique that guarantees the aluminum alloy materials metallurgical quality, and the purpose of purifying aluminium alloy melt mainly is to reduce the hydrogen content in the melt and the content of oxide inclusion.In aluminium and purifying aluminium alloy melt, the outer continuous purification technology of stove is the most widely used method.According to the literature search data analysis, as: Xiang Zhijie, Zhou Qing, Mu Daqiang, " exploitation of Aluminum Melt Double Degassing and filtering system (DDF) ", " light alloy processing technology ", 1998.Vol.26, No 10:20-25, and correlation technique is that melt is imported the twin-stage deaerating chamber that rotary nozzle is arranged earlier mostly both at home and abroad, remove the hydrogen in the melt, again its importing is equipped with the twin-stage decontamination chamber of two different apertures foamed ceramic filter plates, remove fine being mingled with in the melt.Such device disperses, and it is big to take up room; The winding-up of use rotor causes that melt liquid level rises and falls, the aggravation oxidation; Double-stage filtering can't be removed being mingled with of most of 10 μ m.
The objective of the invention is to overcome deficiency of the prior art, a kind of aluminium and aluminium alloy melt composite purification device are provided.
Technical scheme of the present invention is as follows: the present invention is a kind of improved refining plant, mainly comprise: guiding device, filtering and purifying, the gaseous media refining plant, the decontamination chamber, release device and body of heater bracing or strutting arrangement, filtering and purifying is made up of three foamed ceramic filter plates and two-layer flux filtration layer, in the bottom of partition wall and the passage between the body of heater screen plate is set, the top of decontamination chamber, front and back all is provided with foamed ceramic filter plate, the lower end of screen plate before and after flux layer is in, form the filtration of three-stage filtration plate with the passage screen plate of bottom, decontamination chamber and add two-stage flux filtering system, ceramic filter plate is caught the classification of nonmetal inclusion, aperture in the screen plate reduces successively, the pore diameter range that ceramic filter plate adopts is 10-50ppi, the flux filtration layer is separately positioned on below the screen plate, the thickness range of flux filtration layer is 5-8mm, the range of frequency of the pulse gas that adopts is 0-100Hz, can be according to the requirement of reality use, with device be designed to purge amount 1-1000 ton/hour, the gaseous media refining plant is by the pulse air source inlet, purge plug is formed, purge plug is all installed by the decontamination chamber, front and back in the bottom, blow the dehydrogenation of pulse gas during cleaning molten.Purge plug is designed to the porous micropore ceramics, can produce diameter at the micron-sized bubble of 0.1-1mm scope.
Be compounded to form housing successively by cast iron shell, insulation material layer and refractory masses, whole device is by bracket supports, in establish two decontamination chambers, separate with a block wall between the decontamination chamber, the front and back of decontamination chamber are chutes, are used for the importing and the derivation of melt.Aluminium and aluminium alloy melt import this refining plant by preceding chute, by first step foamed ceramic filter plate and first step flux filtration layer, thick nonmetal inclusion is hunted down, part hydrogen is adsorbed and fixes, the pulse gas that enters by purge plug slowly rises in preceding decontamination chamber with the form of micro-bubble, with descending melt thorough mixing, collision, hydrogen in the melt diffuses into rising bubble, nonmetal inclusion collision in rising bubble and the melt simultaneously, absorption is also carried come-up with it, pass through coarse filter, arrive the melt top, form slag, melt by preparatory gas freeing and removal of impurities continues to enter the after chamber by coarse filter, and coarse filter has stopped the nonmetal inclusion that omit preceding decontamination chamber, the gas that is blown into by purge plug continues melt is carried out degasification and removal of impurities, and fine filter and two-stage flux filtering layer can be removed the nonmetal inclusion below most 10 μ m in the melt.Therefore by fine filter and enter the melt of back chute, operation through the filtration of three-stage filtration plate, the filtration of two-stage flux layer and two-stage degasification, can obtain to remove fully the above nonmetal inclusion of 10 μ m, remove the following nonmetal inclusion (≤0.02%) of most 10 μ m, hydrogen richness≤0.08ml/100gAl, the molten aluminium that purity is very high satisfies industrial requirement.
The present invention has substantive distinguishing features and marked improvement, can make the bubble that is blown into melt reach 0.1-1mm, promptly reach micron order, can weaken the seething and inhale harmful effects such as hydrogen of merging, melt of bubble, add the solid hydrogen effect of flux, can make the final hydrogen content of molten aluminium can reduce to the following level of 0.08ml/100gAl; And three-stage filtration adds the two-stage filtration of flux, can catch being mingled with and removing the above nonmetal inclusion of 10 μ m in the melt fully in the melt step by step, and make the following nonmetal inclusion content of 10 μ m be lower than 0.02%.
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 structural representation of the present invention
As shown in Figure 1, the present invention is a kind of improved refining plant, mainly comprise: guiding device, filtering and purifying, the gaseous media refining plant, the decontamination chamber, release device and body of heater bracing or strutting arrangement, filtering and purifying is made up of three foamed ceramic filter plates 1 and two-layer flux filtration layer 2, in the bottom of partition wall 3 and the passage 5 between the body of heater 4 foamed ceramic filter plate 1 is set, decontamination chamber 6, front and back, 7 top all is provided with foamed ceramic filter plate 1, the lower end of screen plate 1 before and after flux filtration layer 2 is in, with decontamination chamber 6, the passage screen plate 1 of 7 bottoms is formed the filtration of three-stage filtration plate together and is added two-stage flux filtering system, the classification of 1 pair of nonmetal inclusion of ceramic filter plate is caught, aperture in the screen plate 1 reduces successively, the pore diameter range that ceramic filter plate 1 adopts is 10-50ppi, flux filtration layer 2 is separately positioned on below the screen plate 1, the thickness range of flux filtration layer 2 is 5-8mm, the range of frequency of the pulse gas that adopts is 0-100Hz, the requirement that can use according to reality, with device be designed to purge amount 1-1000 ton/hour.The gaseous media refining plant is made up of pulse air source inlet 8, purge plug 9, and purge plug 9 is all installed by decontamination chamber, front and back 6 in the bottom, blow the dehydrogenation of pulse gas during cleaning molten.Purge plug 9 is designed to the porous micropore ceramics, can produce diameter at the micron-sized bubble of 0.1-1mm scope.
Claims (4)
1, a kind of aluminium and aluminium alloy melt composite purification device mainly comprise: guiding device, filtering and purifying, the gaseous media refining plant, the decontamination chamber, release device and body of heater bracing or strutting arrangement, it is characterized in that filtering and purifying is made up of three foamed ceramic filter plates (1) and two-layer flux filtration layer (2), in the bottom of partition wall (3) and the passage (5) between the body of heater (4) foamed ceramic filter plate (1) is set, decontamination chamber (6), front and back, (7) top all is provided with foamed ceramic filter plate (1), the lower end of screen plate (1) before and after flux filtration layer (2) is in, with decontamination chamber (6), (7) Di Bu passage screen plate (1) is formed the filtration of three-stage filtration plate together and is added two-stage flux filtering system, the gaseous media refining plant is by pulse air source inlet (8), purge plug (9) is formed, and decontamination chamber, front and back (6) all install purge plug (9) in the bottom.
2, this aluminium according to claim 1 and its feature of aluminium alloy melt composite purification device are that also the aperture in the screen plate (1) reduces successively, and the pore diameter range that ceramic filter plate (1) adopts is 10-50ppi.
3, this aluminium according to claim 1 and its feature of aluminium alloy melt composite purification device are that also flux filtration layer (2) is separately positioned on below the screen plate (1), and the thickness range of flux filtration layer (2) is 5-8mm.
4, this aluminium according to claim 1 and its feature of aluminium alloy melt composite purification device are that also purge plug (9) is designed to the porous micropore ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127938A CN1126822C (en) | 2000-12-19 | 2000-12-19 | Compound purifyier for aluminium and aluminium alloy melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127938A CN1126822C (en) | 2000-12-19 | 2000-12-19 | Compound purifyier for aluminium and aluminium alloy melt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1299883A CN1299883A (en) | 2001-06-20 |
| CN1126822C true CN1126822C (en) | 2003-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00127938A Expired - Fee Related CN1126822C (en) | 2000-12-19 | 2000-12-19 | Compound purifyier for aluminium and aluminium alloy melt |
Country Status (1)
| Country | Link |
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| CN (1) | CN1126822C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003038138A1 (en) * | 2001-10-30 | 2003-05-08 | Desheng Huang | Non-ferrous melt refinement and equipment |
| CN101927105B (en) * | 2010-01-28 | 2012-06-27 | 湖南金联星特种材料股份有限公司 | Foamed ceramic aluminum melt filter tube, manufacturing method and filtering device |
| CN102146517A (en) * | 2011-03-14 | 2011-08-10 | 南昌航空大学 | Composite purification method for zinc and zinc alloy |
| CN102154562A (en) * | 2011-03-16 | 2011-08-17 | 南昌航空大学 | Composite purifying box for zinc and zinc alloy melts |
| CN102899506A (en) * | 2012-09-26 | 2013-01-30 | 宜兴市金啸铜业有限公司 | Aluminum liquid purifying device |
| CN103877790A (en) * | 2012-12-21 | 2014-06-25 | 济南圣泉倍进陶瓷过滤器有限公司 | Novel composite ceramic foam filter |
| CN103103362B (en) * | 2013-01-31 | 2015-09-09 | 西南大学 | The reverse double-stage filtering method of aluminium water and filtration unit |
| CN104404266A (en) * | 2014-10-29 | 2015-03-11 | 广西来宾银海铝材股份有限公司 | Smelting furnace apparatus |
| CN105603212B (en) * | 2014-11-19 | 2018-01-05 | 保定安保能冶金设备有限公司 | Secondary aluminium waste gas circulation cleaning system |
| CN108642297A (en) * | 2018-07-06 | 2018-10-12 | 广西科技大学 | A kind of method of the online compounding flux processing of light-alloy |
| CN109652661B (en) * | 2019-01-25 | 2020-06-26 | 焦作大学 | Aluminum alloy melt purification device |
| CN110218875A (en) * | 2019-07-23 | 2019-09-10 | 重庆角鹿机械制造有限公司 | A kind of online argon gas depassing unit of aluminum solutions |
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2000
- 2000-12-19 CN CN00127938A patent/CN1126822C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1299883A (en) | 2001-06-20 |
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