CN105202915A - Large aluminum refining segregation furnace - Google Patents
Large aluminum refining segregation furnace Download PDFInfo
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- CN105202915A CN105202915A CN201410229139.3A CN201410229139A CN105202915A CN 105202915 A CN105202915 A CN 105202915A CN 201410229139 A CN201410229139 A CN 201410229139A CN 105202915 A CN105202915 A CN 105202915A
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Abstract
The invention discloses a large aluminum refining segregation furnace. A heat preservation lining (3) is laid in the inner side of a steel furnace shell (1), a graphite crucible (2) is placed in the heat preservation lining (3), a heating element set (4) is inlaid between the inner side of the heat preservation lining (3) and the graphite crucible (2), a bead pressing graphite cone (5) is installed over the graphite crucible (2), and the upper portion of the bead pressing graphite cone (5) is connected with a graphite shaft rod (14) and an electromotor and worm and worm gear mechanism (10); the outer side of the steel furnace shell (1) is provided with a support (13), the upper end of the support (13) is connected with a moving trolley (9), vertical beams (16) on the inner side of the frame of the moving trolley (9) are provided with limit switches (11), and the electromotor and worm and worm gear mechanism (1) is connected with a counter (12). The frame of the moving trolley comprises a lower cross beam (15), the vertical beams (16) and an upper cross beam (17); an aluminum crystal ring scraping plate (8) is installed on the cross beam (15). The large aluminum refining segregation furnace is used for producing high-purity refined aluminum and can improve the equipment production capacity and significantly reduce construction investment, production energy consumption and maintenance cost of an enterprise.
Description
Technical field
The present invention relates to a kind of Large size Aluminium refining segregation furnace of producing for rafifinal.
Background technology
Along with the raising of aluminium purity, the performances such as its corrosion resistance, plasticity, electric conductivity, reflective are all greatly improved; Because high-purity refined aluminium function admirable, make its range of application more and more wider.In recent years along with the stable development of China's economic, the needs of the high-purity refined aluminium as purer in contrast primary aluminum such as electronics industry, electrolytic capacitor, integrated circuit wiring material, computer memory disc, superconductor, magnetic magma material, sprayed on material, low temperature electromagnetic component, space flight and aviation and auto industrys in many fields of modern industry increase rapidly, and the large-scale refined aluminium segregation furnace technology thus developing suitable for China is that gesture become.At present, purification refined aluminium (AL >=99.998%) although though three-layer aluminum electrolysis only have a few countries such as China, Japan, Germany, France, the U.S., Norway to have in the world, but three layers of liquid aluminium electroloysis purifying method ubiquity that series investment is large, energy consumption is high, maintenance expense is high and can not the shortcoming such as intermitten service, the segregation furnace capacity that Japan uses at present only has 1.5 ton per day production capacities.Along with China encourages Resources for construction economizing type, environmentally friendly " amphitypy " society, traditional aluminium electroloysis refining techniques has been not suitable for the demand to China's industrialization, scale process.
At present, the patented technology of domestic existing aluminium refining equipment technology mainly comprises: 1. waited quietly by Northeastern University Huo Xiu " raw aluminium purifying device by orient crystallization " invented, 2. " high-purity single-layer aluminium crystal solidifying purifier " invented by Shanghai Communications University grandson Powerleader etc., " directional crystallizer for production of finished aluminium " 3. invented by Xinjiang Zhonghe Co. Ltd. Liu Zong Ren etc.The shortcoming of this several aluminium refining equipment is mainly equipped huge, and single devices is complicated, be unfavorable for the flexible topology of produced in series segregation furnace, and single devices production capacity is less, is unfavorable for that enterprise scale is produced.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of structure work efficiency high, invest little, energy consumption is low, be convenient to the Large size Aluminium refining segregation furnace of automated job, and overcomes existing aluminium refining segregation furnace ubiquity capacity and the deficiency such as the size of capacity is little, uneconomical.
The technical solution adopted for the present invention to solve the technical problems is as follows: inside steel furnace shell, be provided with insulating lining, graphite crucible is had in insulating lining, heating element heater group is had at insulating lining innermost insert, above graphite crucible, be provided with briquetting graphite cone, briquetting graphite cone top is connected with motor and turbine and worm mechanism; Have support in steel furnace shell arranged outside, pedestal upper end is connected with travelling car, inside the vehicle frame vertical beam of travelling car, be provided with limit switch, and counter is equipped with in the motor on entablature and turbine and worm mechanism.
Briquetting graphite cone is connected with motor and turbine and worm mechanism by insulating connector with graphite axostylus axostyle.
The vehicle frame of travelling car comprises sill, vertical beam and entablature; Crossbeam is provided with aluminium crystal and scrapes girth sheets.
The internal diameter of graphite crucible is at φ 1250 ± 250mm, and inside depth is 2000 ± 150mm.
Graphite crucible and axostylus axostyle adopt high purity graphite material (fixed carbon content>=99.99%, density>=1.8kg/m
3) make.
Motor and turbine and worm organization establishes are on entablature.
Briquetting graphite cone adopts high purity graphite material to make, and the garden pyramidal portion diameter of briquetting graphite cone 5 is about φ 1200 ± 250mm, vertebra angle about 45 ± 5, and the cone surrounding of briquetting graphite vertebra 5 is furnished with the hole that aluminium liquid can be allowed to float; The diameter of graphite axostylus axostyle 14 is about 20 ~ 35% of graphite crucible internal diameter.
Insulating lining is inlaid with heating element heater group (as resistance wire);
Graphite crucible and axostylus axostyle adopt high purity graphite material to make, and object does not pollute rafifinal product as far as possible.The internal diameter of graphite crucible can at φ 1250 ± 250mm, and inside depth is at 2000 ± 150mm, and the day production capacity of the Large size Aluminium refining segregation furnace of design like this can reach about 2.0 ± 0.5 tons.
After adopting the present invention, if 24 large-scale segregation furnace series are equipped by the aluminium refinery being 10,000 tons for annual capacity, the ton aluminium investment only 0.4 ten thousand yuan/ton of the large-scale segregation furnace of general the present invention, the ton aluminium of 66 60kA, tri-layers of liquid electrolysis refined aluminum groove series is adopted to invest compared with height about 10,000 yuan/ton with the aluminium refinery of same size, construction investment 0.6 hundred million yuan can be saved, simultaneously, the power consumption of large-scale segregation furnace is lower than 1000kWh/t-Al, far below the direct current consumption 15000kWh/t-Al of three layers of liquid aluminum refining electrolyzing cell, annual production 1.4 hundred million degree of (kWh) power consumptions capable of reducing energy consumption, be equivalent to year economize energy 1720.6 ten thousand tons of standard coals, enterprise can save energy synergy 0.56 hundred million yuan year, direct productivity effect is fairly obvious, in addition the effect of energy-saving and emission-reduction, its social efficiency is also very remarkable
.
The displacement volume of Large size Aluminium refining segregation furnace of the present invention is 2.0 ± 0.5 ton per days, is applicable to the big-and-middle-sized aluminium refinery building production capacity scale more than 5000 tons/year.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of Large size Aluminium refining segregation furnace of the present invention.
In figure: 1---steel furnace shell, 2---graphite crucible, 3---insulating lining, 4---heating element heater group, 5---briquetting graphite cone with holes, 6---high-purity aluminium ingot, 7---impure raw aluminum liquid, 8---aluminium crystal scrapes girth sheets, and 9---travelling car, 10---motor and turbine and worm, 11---limit switch, 12---counter, 13---support, 14---graphite axostylus axostyle, 15---sill, 16---vertical beam, 17---entablature, 18---insulating connector.
Detailed description of the invention:
Embodiments of the present invention are exemplified below: Large size Aluminium refining segregation furnace of the present invention scrape girth sheets 8, travelling car 9, motor and turbine and worm 10, the compositions such as limit switch 11, counter 12, support 13, graphite axostylus axostyle 14, sill 15, vertical beam 16, entablature 17, insulating connector 18 by steel furnace shell 1, graphite crucible 2, insulating lining 3, heating element heater group 4, briquetting graphite cone 5 with holes, aluminium crystal.Insulating lining 3 has been built by laying bricks or stones inside steel furnace shell 1, graphite crucible 2 is mounted with in insulating lining 3, heating element heater group 4 is had at insulating lining 3 innermost insert, be provided with briquetting graphite cone 5 above in graphite crucible 2, briquetting graphite cone 5 is connected with upper motor and turbine and worm mechanism 10 by insulating connector 18 with graphite axostylus axostyle 14; Have support 13 in steel furnace shell 1 arranged outside, the track upper end of support 13 is provided with travelling car 9, inside the vertical beam 16 of travelling car 9, be provided with limit switch 11, and motor and turbine and worm mechanism 10 are connected with counter 12.
The internal diameter of graphite crucible 2 is at φ 1250 ± 250mm, and inside depth is 2000 ± 150mm.
Briquetting graphite cone 5 is connected with upper motor and turbine and worm mechanism 10 by insulating connector 18 with graphite axostylus axostyle 14.
Graphite crucible 2 and axostylus axostyle 14 adopt high purity graphite material to make, and the garden pyramidal portion diameter of briquetting graphite cone 5 is about φ 1200 ± 250mm, vertebra angle about 45 ± 5, and the cone surrounding of briquetting graphite vertebra 5 is furnished with the hole that aluminium liquid can be allowed to float; The diameter of graphite axostylus axostyle 14 is about 20 ~ 35% of graphite crucible internal diameter.
The vehicle frame of travelling car 9 comprises sill 15, vertical beam 16 and entablature 17; In the middle part of crossbeam 15, be provided with aluminium crystal scrape girth sheets 8.
Motor and turbine and worm mechanism 10 are arranged on entablature 17.
The key operation process of Large size Aluminium refining segregation furnace of the present invention is as follows:
Process 1: produce the initial stage, first inject to graphite crucible 2 treat the impure raw aluminum liquid 7 of the high temperature of refining from aluminium melting furnace or aluminium liquid middle air-driven chute of two-maing ladle, then the heating power of the heating element heater group 4 in steel furnace shell 1 is regulated and controled, each spot temperature of the impure primary aluminum liquid 7 in graphite crucible is slowly reduced, raw aluminum liquid is made progressively to cool generation segregation phenomena by cooling, in segregation process, solvable eutectic impurity in raw aluminum liquid is (as Fe, Si, Cu etc.) segregation enters liquid phase, only have as Ti, V, the micro-peritectoid element impurity such as Zr enters solid phase with metallic aluminium, a large amount of metallic aluminium then crystallization enters solidifying phase and purified and generate high-purity aluminium ingot 6 in the bottom being deposited to graphite crucible 2 because of gravity,
The middle and lower part of travelling car 9 is provided with briquetting graphite cone 5 with holes and graphite bearing 14, motor and turbine and worm 10 and counter 12 etc., and motor drives turbine and worm 10 that briquetting graphite cone 5 with holes and graphite bearing 14 can be made to do oscilaltion campaign.
Process 2: horizontal slip travelling car 9, the briquetting graphite cone 5 with holes making it subsidiary is placed in directly over graphite crucible 2, after segregation process continues for some time (about 40 ~ 60 seconds), primary aluminum liquid in graphite crucible is the rafifinal crystalline solid of part at crucible bottom segregated solidification, subsequently, starter motor drives turbine and worm 10 to drive briquetting graphite cone 5 with holes decline to enter among the aluminium liquid of graphite crucible bottom, and compress high-purity aluminium ingot 6 that the rafifinal crystalline solid (about 15 ~ 20 seconds time) solidified bottom graphite crucible makes it to be formed a certain height, the crush pad of high-purity aluminium ingot
h t change in time also can be measured by the counter 12 that turbine and worm on travelling car 10 is installed, when briquetting graphite cone 5 with holes compresses high-purity aluminium ingot bottom graphite crucible 2, liquid aluminium residual in coagulum can be extruded and float up to top through the cavity of briquetting graphite cone 5 periphery with holes and do not continue segregation process among fine aluminium liquid in compaction process,
Briquetting graphite cone 5 with holes declines and compresses the height of high-purity aluminium ingot
h t the data-signal measured by counter 12 can be fed back to control room and calculate out, in order to control the lifting travel of briquetting graphite cone 5 with holes, (total kilometres are about about 1950mm, updating speed is about 200mm/s), the limit switch (11) of several groups of preset height is installed inside the vertical beam 16 of travelling car top lifting guide plate, to avoid damaging the equipment such as graphite crucible or travelling car in lift work process by controlling adjustable height.
Process 3: after briquetting graphite cone 5 with holes compresses high-purity aluminium ingot 6 certain hour (about 15 ~ 20 seconds time), promote briquetting graphite cone and make it to rise to (each hoisting depth about 5 ~ 20mm of certain altitude above raw aluminum liquid, promote about 25 ~ 40 seconds retention times), in briquetting graphite cone 5 uphill process with holes, on graphite axostylus axostyle 14 because graphite material heat radiation better and attachment portion crystalline aluminium will be scraped girth sheets 8 by aluminium crystal and scrapes and be deposited to bottom graphite crucible;
Segregation production cycle cycle first time is after above-mentioned 1 ~ 3 process completes.
When the segregation cycle starts for the second time, first according to the crush pad of the rafifinal solidifying body of first time segregation production cycle period measurement
h t value determines the heating power of graphite crucible and the temperature of aluminum liquid adjusted in crucible, again carries out the second time cooling segregation production cycle.
Process 4: the heating general power in heating element heater group 4 cycle of segregation each time
w t it is high-purity aluminium ingot 7 crush pad
h t function, generally have following empirical equation (empirical coefficient by test regression equation obtain):
W t ＝
∫﹛
k 1 ·
（h t －
h 0 ）＋
k 2 ·（
h i －
h 0 ）／
△t﹜
In formula:
w t for the heating general power that heater element group in the cycle of segregation is each time preset;
k 1 , k 2 for empirical coefficient (empirical coefficient obtains by Orthogonal Rotational Regressive Tests);
h 0 for high-purity aluminium ingot crush pad that the circulation of segregation is each time preset;
h t for the actual crush pad of high-purity aluminium ingot that last segregation circulation is measured;
△ tfor the segregation time of segregation cycle period each time.
Repeatedly repeat the segregation process (about 15 times) of above-mentioned 1 ~ 5 until the impurities accumulation in impure primary aluminum liquid residual in sample analysis graphite crucible is after saturation state.Promote briquetting graphite cone 5 with holes and get back to rising original position;
Remove the operation that travelling car 9(can continue on for other segregation furnace), the graphite crucible 2 in steel furnace shell 1 is hung out with the crane gear in workshop, pour out the residual impure primary aluminum liquid (aluminium scrap) in graphite crucible 2 middle and upper part and bottom compresses the high-purity aluminium ingot 6 solidified, again after high-purity aluminium ingot 6 cools, get the defective of a certain height in its top according to aluminium purity demand saw and solidify part (about 100mm), remaining lower junction crystal is exactly qualified products---the high-purity aluminium ingot (aluminium purity can reach more than Al99.998%) needed for aluminium refining is produced.
Claims (7)
1. a Large size Aluminium refining segregation furnace, it is characterized in that: steel furnace shell (1) inner side is provided with insulating lining (3), graphite crucible (2) is mounted with in insulating lining (3), heating element heater group (4) is had at insulating lining (3) innermost insert, be provided with briquetting graphite cone (5) in graphite crucible (2) top, briquetting graphite cone (5) is connected with upper motor and turbine and worm mechanism (10) by insulating connector (18) with graphite axostylus axostyle (14); Support (13) is had in steel furnace shell (1) arranged outside, support (13) upper end is connected with travelling car (9), vertical beam (16) inner side on the vehicle frame of travelling car (9) is provided with limit switch (11), and motor and turbine and worm mechanism (10) are connected with counter (12).
2. Large size Aluminium refining segregation furnace according to claim 1, is characterized in that: briquetting graphite cone (5) is connected with upper motor and turbine and worm mechanism (10) by insulating connector (18) with graphite axostylus axostyle (14).
3. Large size Aluminium refining segregation furnace according to claim 1, is characterized in that: the vehicle frame of travelling car (9) comprises sill (15), vertical beam (16) and entablature (17); Crossbeam (15) is provided with aluminium crystal and scrapes girth sheets (8).
4. Large size Aluminium refining segregation furnace according to claim 1, is characterized in that: the internal diameter of graphite crucible (2) is about φ 1250 ± 250mm, and inside depth is 2000 ± 150mm about.
5. Large size Aluminium refining segregation furnace according to claim 1, is characterized in that: graphite crucible (2) and axostylus axostyle (14) adopt high purity graphite material to make.
6. Large size Aluminium refining segregation furnace according to claim 3, is characterized in that: motor and turbine and worm mechanism (10) are arranged on entablature (17).
7. Large size Aluminium refining segregation furnace according to claim 1, it is characterized in that: briquetting graphite cone (5) and graphite axostylus axostyle adopt high purity graphite material to make, the garden pyramidal portion diameter of briquetting graphite cone 5 is about φ 1200 ± 250mm, vertebra angle about 45 ± 5, the cone surrounding of briquetting graphite vertebra 5 is furnished with hole; The diameter of graphite axostylus axostyle 14 is about 20 ~ 35% of graphite crucible internal diameter.
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| CN201410229139.3A CN105202915A (en) | 2014-05-28 | 2014-05-28 | Large aluminum refining segregation furnace |
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| CN201410229139.3A CN105202915A (en) | 2014-05-28 | 2014-05-28 | Large aluminum refining segregation furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440949A (en) * | 2020-04-08 | 2020-07-24 | 陈雨 | High-efficient electrolytic aluminum waste purification processingequipment |
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| US4734127A (en) * | 1984-10-02 | 1988-03-29 | Nippon Light Metal Co., Ltd. | Process and apparatus for refining aluminum |
| CN1335894A (en) * | 1999-01-08 | 2002-02-13 | 皮奇尼铝公司 | Method and device for purifying aluminium by segregation |
| CN101473053A (en) * | 2006-06-23 | 2009-07-01 | 爱尔康何纳吕公司 | Process for recycling aluminium alloy scrap coming from the aeronautical industry |
| CN101775504A (en) * | 2010-03-10 | 2010-07-14 | 抚顺东工冶金材料技术有限公司 | Method for preparing clean fine-grained aluminium alloy wire rod |
| CN102534246A (en) * | 2011-12-27 | 2012-07-04 | 昆明冶金研究院 | Preparation method of high-purity aluminum |
| CN203869502U (en) * | 2014-05-28 | 2014-10-08 | 贵阳铝镁设计研究院有限公司 | Segregation furnace |
-
2014
- 2014-05-28 CN CN201410229139.3A patent/CN105202915A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734127A (en) * | 1984-10-02 | 1988-03-29 | Nippon Light Metal Co., Ltd. | Process and apparatus for refining aluminum |
| CN1335894A (en) * | 1999-01-08 | 2002-02-13 | 皮奇尼铝公司 | Method and device for purifying aluminium by segregation |
| CN101473053A (en) * | 2006-06-23 | 2009-07-01 | 爱尔康何纳吕公司 | Process for recycling aluminium alloy scrap coming from the aeronautical industry |
| CN101775504A (en) * | 2010-03-10 | 2010-07-14 | 抚顺东工冶金材料技术有限公司 | Method for preparing clean fine-grained aluminium alloy wire rod |
| CN102534246A (en) * | 2011-12-27 | 2012-07-04 | 昆明冶金研究院 | Preparation method of high-purity aluminum |
| CN203869502U (en) * | 2014-05-28 | 2014-10-08 | 贵阳铝镁设计研究院有限公司 | Segregation furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440949A (en) * | 2020-04-08 | 2020-07-24 | 陈雨 | High-efficient electrolytic aluminum waste purification processingequipment |
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Application publication date: 20151230 |
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