CN203229566U - Aluminum magnesium alloy joint refining device - Google Patents
Aluminum magnesium alloy joint refining device Download PDFInfo
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- CN203229566U CN203229566U CN2013201885018U CN201320188501U CN203229566U CN 203229566 U CN203229566 U CN 203229566U CN 2013201885018 U CN2013201885018 U CN 2013201885018U CN 201320188501 U CN201320188501 U CN 201320188501U CN 203229566 U CN203229566 U CN 203229566U
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- magnesium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses an aluminum magnesium alloy joint refining device, belonging to the field of nonferrous metal smelting. The device is formed in such a manner that the inner side and the outer side of a magnesium reducing tank are connected with the inner sides and the outer sides of an aluminum electrolysis bath and an aluminum magnesium alloy smelting tank through pipelines, wherein the inner side of the magnesium reducing tank is communicated with the inner sides of the aluminum electrolysis bath and the aluminum magnesium alloy smelting tank through pipelines respectively to form a fluid material flow passage; three pipelines, connected with the aluminum electrolysis bath, of the flow passage are respectively connected to spaces between the cathodes at the bottom part of the magnesium reducing tank and at the bottom part of the electrolysis bath, between the bottom part of the reducing tank and anode electrolyte at the middle part of the electrolysis bath and between the upper part of the reducing tank and the upper part of the electrolysis bath, and pipelines at the inner side of the alloy smelting tank are connected to spaces between upper gas exits and lower liquid exists of the reducing tank and the smelting tank respectively. The device provides the flow passages for fluid materials and heating media utilized in an alloy smelting process, and is capable of fully utilizing products and heat generated in an aluminum electrolysis process and fully recycling alumina slag generated in a magnesium reduction process.
Description
Technical field
The utility model relates to a kind of metal smelting device, particularly relates to a kind of aluminum magnesium alloy associating refining plant.
Background technology
Magnesium alloy has that density is little, shock absorbing good, stability is high, electromagnetic wave shielding is good, good heat dissipation and advantage such as renewable, it is outstanding structure and function material, be used widely in fields such as national defence, Aeronautics and Astronautics, oil, chemical industry, using the widest magnesium alloy at present is magnalium.
Existing MAGNESIUM METAL thermal reduction jar all is the reduction reaction design admittedly of Pidgeon process magnesium oxide-reductive agent, the heat energy consumption that temperature too high (1200 ℃) causes that responds of the solid reduction method of Pi Jianggu is big, reduction jar work-ing life short (a reduction jar replacement cost accounts for total cost 1/4), and shortcoming such as crude magnesium purity is low; The speed of response and the raw material availability that have solid-solid reaction to cause are low, and the transmission of reaction process temperature is slow, need establish the pressure ball workshop in addition with the shortcomings such as raw material heat waste that obtain under the hot conditions in raw material pressure ball and the pressure ball process; There is the reduction reaction slag not to be reproduced and utilizes the problem of environmental pollution (one ton of magnesium of every production produces slag 6-7 ton) that brings; And can not produce problems such as the output of bringing is little continuously.The consumption of metal current magnesium only is 1% of metallic aluminium, one of them important reasons be exactly the refining MAGNESIUM METAL cost too high, output is too small.Magnesium alloy and upstream product MAGNESIUM METAL thereof, metallic aluminium all need be refined under higher temperature, and the alloy refining plant that uses at present fails effectively to utilize the waste heat that produces in the metal refining process of upstream.
Summary of the invention
The purpose of this utility model is to provide a kind of aluminum magnesium alloy associating refining plant, the utility model connects into an organic whole with aluminium cell, magnesium reducing furnace and magnalium smelting furnace by pipeline, and the gentle body of high-temp liquid that the upstream is produced can directly be utilized in the downstream.
The purpose of this utility model is achieved through the following technical solutions:
A kind of aluminum magnesium alloy associating refining plant, inboard and the outside is connected to form by pipeline and aluminium cell and magnalium smelting pot medial and lateral its described device by the magnesium reduction jar, magnesium reduction jar inboard communicates with aluminium cell and magnalium smelting pot inboard by pipeline respectively, constitutes the fluid foods circulation passage; Three pipelines that circulation passage is connected with aluminium cell are connected between magnesium reduction pot bottom and the bottom of electrolytic tank negative electrode place, reduction pot bottom and electrolyzer middle part anolyte, and reduction jar top and upper part of the electrolytic cell, between the pipeline of alloy melting jar inboard is connected to reduction jar and the smelting pot upper gas is imported and exported and lower liquid imports and exports.
Described a kind of aluminum magnesium alloy associating refining plant, thermal insulation layer interior the generation between gas enrichment place and the magnalium smelting pot outside thermal insulation layer by pipeline and aluminium cell in the described magnesium reduction jar outside is communicated with into the UTILIZATION OF VESIDUAL HEAT IN passage.
Described a kind of aluminum magnesium alloy associating refining plant, the pipeline between described connection aluminium cell, magnesium reduction jar and the magnalium smelting pot is provided with valve, filter screen and surge tank.
Advantage of the present utility model and effect are:
1. the utility model has reduced the reduction temperature of refining MAGNESIUM METAL, thereby has reduced the heat exhaustion in the magnesium reduction process, has prolonged the work-ing life of reduction jar, has improved the purity of gaseous state crude magnesium.
2. the utility model reclaims and has used the aluminum oxide slag that produces in the MAGNESIUM METAL refining process, has namely saved raw materials cost and has alleviated environmental pollution again.
3. the utility model has increased temperature transmission speed and speed of response by liquid phase reaction, has improved raw material availability.
4. the utility model can be realized the continuous production of magnesium metal and magnalium, utilization ratio of raw materials can fully utilize MAGNESIUM METAL near 100%, waste heat in metallic aluminium and the magnalium refining process and protection condition have been saved the cost of whole alloy refining process greatly.
Description of drawings
Fig. 1 is single unit system synoptic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment the utility model is elaborated.
The utility model comprises the refining of metallic aluminium, the refining of MAGNESIUM METAL, melting three parts of magnalium.Among the figure: 1: the graphite cathode of electrolytic aluminum; 2: the insulation groove of electrolytic aluminum; 3: graphite anode; 4: reduction jar outside pipe connecting; 5: reduction jar inboard pipe connecting; 6: aluminium liquid path pipe; 7: the alumina recovery pipe; 8: reduction jar insulation groove; 9: the vacuum feed groove; 10: magnalium liquid path pipe; 11: alloy melting jar insulation groove; 12: the outlet of magnalium liquid; 13: the MAGNESIUM METAL outlet; 14: insulation groove pipe connecting; 15 magnesium gas path pipe; 16 vacuum feed grooves.
The temperature of reaction of aluminium cell is at 950-970 ℃, and the high-temperature gas that reaction produces is connected in the magnesium reducing furnace by the pipeline of two groups of built-in filter screens and valve.Wherein one group of pipeline is connected on a reduction jar outside and is used for the reduction jar is carried out preheating, and it is jar inboard that another group pipeline connects reduction, uses when reflux oxidation aluminium slag.At electrolytic aluminum device cathode terminal the pipeline that is connected with the magnesium reduction pot bottom is arranged, the liquid level of the liquid metal aluminium that produces in electrolysis exceeds the outlet upper edge 1cm of electrolyzer end of pipe connecting when above, open pipe valve two reactors are coupled together, so that the high temperature aluminum liquid that electrolysis produces can enter the magnesium reduction jar.
The bottom of magnesium metal reduction jar will be higher than the last liquid level of Cryolite-alumina Melt in the electrolytic aluminum reaction, so that the aluminum oxide slag that refining produces during magnesium can be refluxed and use, the vacuum tightness of the height that specifically exceeds and reduction jar and electrolyzer, enter that to reduce the factors such as aluminium flow quantity of jar relevant.When needs high temperature aluminum liquid enters the magnesium reduction jar and carries out reduction reaction, the magnesium reduction jar is vacuumized, liquid aluminium flows into reduction jar under the pressure difference of two reactors.The raw material magnesia powder adds from the vacuum feeding device of reduction upper end before reaction.The magnesian temperature of reaction of liquid aluminium vacuum reducing can be hanged down to 700 ℃ in theory, and actual temperature according to circumstances can be selected between 700-1000 ℃, keeps with the heat that the liquid aluminium that produces in the aluminium metallurgy process and high-temperature gas are brought the magnesium reduction jar into.And the preheating of magnesium reduction jar and the type of heating when carrying out heat supplement in order to accelerate reduction rate are taked the resistive heating of temperature controllable, to save heat energy consumption.Liquid aluminium carries out reduction reaction with magnesium oxide under 700-1000 ℃ of temperature and 1-20000Pa pressure, generate gaseous metal magnesium and solid oxide aluminium, gaseous metal magnesium flows out from a reduction jar top magnesium vacuum outlet, and the liquid aluminium that reduction reaction does not take place is extracted out from a reduction jar lower part outlet vacuum.Carry out the intermittence that is recovered in twice restoring operation of solid alumina slag: after the magnesium oxide more than 95% is reduced in the reduction jar, close aluminium liquid feeding pipe, the MAGNESIUM METAL that reduction is obtained with powerful lobe pump and the aluminium liquid that do not have reduction are pacified required ratio and are closed smelting pot from the reduction jar collector of suction MAGNESIUM METAL respectively and U.S. aluminium then, close then that MAGNESIUM METAL, aluminium flow out pipeline in the reduction jar; Open the valve of the pipeline that is connected anode electrolytic cell end and magnesium reduction pot bottom, make the Cryolite-alumina Melt of low alumina concentration enter the magnesium reduction jar from aluminium cell, the aluminum oxide slag that the dissolving and reducing reaction produces, obtain the Cryolite-alumina Melt of high-alumina concentration, then open electrolysis of aluminum product gas and the reduction jar inboard pipeline that links to each other, the gas that electrolysis is produced flows into the magnesium reduction jar, to increase the pressure in the reduction jar, make the Cryolite-alumina Melt of high-alumina concentration flow back to aluminium cell, operation can make aluminum oxide by total reflux several times repeatedly; After the aluminum oxide reflux operation is finished, close the aluminum oxide return line, open electrolytic aluminum and generate gas and extract pipeline out, the gas in will reduce jar with vacuum pump is drawn back in the reduction jar outer heating pipe line, then closes a ventpipe that connects electrolyzer and reduction jar inboard; Reopen the metallic aluminium feed-pipe in the reduction jar at last, begin restoring operation next time.
The smelting temperature of magnalium vacuum melting jar is at 700-750 ℃, can be kept the same resistive heating of selecting to use rly.-thermopair control temperature with magnesium reducing furnace of the type of heating of alloy melting stove self by the heat that the high-temperature product that flows out in the heat gas that flows out in the magnesium reducing furnace and the magnesium reduction jar carries.Partial liquefaction makes gaseous magnesium obtain further refining to the gaseous metal magnesium of extracting out from magnesium reduction jar top vacuum with the temperature reduction the alloy melting stove, and the MAGNESIUM METAL of liquefaction is carried out alloy melting with the metallic aluminium liquation that is dissolved with little metal magnesium that reduction jar underflow goes out, and can add required solvent and the refining agent of refining and modifying from smelting furnace top vacuum feed mouth and carry out synchronous refining and modifying in the alloy melting process.
Embodiment 1:
It in the electrolyzer of a 300KA is 98% aluminum oxide with the speed electrolysis content of 4.4 tons of every days, it is that 93% weight is that 3.2 tons magnesium oxide reacts that the metallic aluminium liquation that generates is sucked two standard magnesium reduction jars and purity, obtain 1.79 tons of MAGNESIUM METAL every day in the reduction jar, and the metallic aluminium of not participating in reduction reaction is 0.29 ton.Can refine 1.98 tons in AZ91 magnesium alloy, 0.11 ton of metallic aluminium.
Embodiment 2:
It in the electrolyzer of a 300KA is 98% aluminum oxide with the speed electrolysis content of 4.4 tons of every days, it is that 93% weight is that 3.6 tons magnesium oxide reacts that the metallic aluminium liquation that generates is sucked two standard magnesium reduction jars and purity, obtain 2.01 tons of MAGNESIUM METAL every day in the reduction jar, and the metallic aluminium of not participating in reduction reaction is 0.04 ton.Can refine 0.45 ton in AZ91 magnesium alloy, 1.61 tons of MAGNESIUM METAL.
Claims (3)
1. an aluminum magnesium alloy is united refining plant, it is characterized in that, inboard and the outside is connected to form by pipeline and aluminium cell and magnalium smelting pot medial and lateral described device by the magnesium reduction jar, magnesium reduction jar inboard communicates with aluminium cell and magnalium smelting pot inboard by pipeline respectively, constitutes the fluid foods circulation passage; Three pipelines that circulation passage is connected with aluminium cell are connected between magnesium reduction pot bottom and the bottom of electrolytic tank negative electrode place, reduction pot bottom and electrolyzer middle part anolyte, and reduction jar top and upper part of the electrolytic cell, between the pipeline of alloy melting jar inboard is connected to reduction jar and the smelting pot upper gas is imported and exported and lower liquid imports and exports.
2. a kind of aluminum magnesium alloy according to claim 1 is united refining plant, it is characterized in that thermal insulation layer interior the generation between gas enrichment place and the magnalium smelting pot outside thermal insulation layer by pipeline and aluminium cell in the described magnesium reduction jar outside is communicated with into the UTILIZATION OF VESIDUAL HEAT IN passage.
3. a kind of aluminum magnesium alloy associating refining plant according to claim 1 is characterized in that the pipeline between described connection aluminium cell, magnesium reduction jar and the magnalium smelting pot is provided with valve, filter screen and surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201885018U CN203229566U (en) | 2013-04-16 | 2013-04-16 | Aluminum magnesium alloy joint refining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201885018U CN203229566U (en) | 2013-04-16 | 2013-04-16 | Aluminum magnesium alloy joint refining device |
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| Publication Number | Publication Date |
|---|---|
| CN203229566U true CN203229566U (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013201885018U Withdrawn - After Issue CN203229566U (en) | 2013-04-16 | 2013-04-16 | Aluminum magnesium alloy joint refining device |
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| CN (1) | CN203229566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103173635A (en) * | 2013-04-16 | 2013-06-26 | 沈阳化工大学 | Device for joint refining of aluminum-magnesium alloy |
| CN108707928A (en) * | 2018-05-18 | 2018-10-26 | 湖南科技大学 | A kind of almag joint refining plant |
| CN112210792A (en) * | 2020-09-18 | 2021-01-12 | 苏州泰凯闻机电科技有限公司 | Circulating aluminum product recycling electrolytic tank |
-
2013
- 2013-04-16 CN CN2013201885018U patent/CN203229566U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103173635A (en) * | 2013-04-16 | 2013-06-26 | 沈阳化工大学 | Device for joint refining of aluminum-magnesium alloy |
| CN103173635B (en) * | 2013-04-16 | 2014-04-09 | 沈阳化工大学 | Device for joint refining of aluminum-magnesium alloy |
| CN108707928A (en) * | 2018-05-18 | 2018-10-26 | 湖南科技大学 | A kind of almag joint refining plant |
| CN108707928B (en) * | 2018-05-18 | 2020-07-28 | 湖南科技大学 | Aluminum-magnesium alloy combined refining device |
| CN112210792A (en) * | 2020-09-18 | 2021-01-12 | 苏州泰凯闻机电科技有限公司 | Circulating aluminum product recycling electrolytic tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131009 Effective date of abandoning: 20140409 |
|
| RGAV | Abandon patent right to avoid regrant |