CN103223481A - Method and device for preparing high-purity and high-activity aluminium shots - Google Patents
Method and device for preparing high-purity and high-activity aluminium shots Download PDFInfo
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- CN103223481A CN103223481A CN2013101199573A CN201310119957A CN103223481A CN 103223481 A CN103223481 A CN 103223481A CN 2013101199573 A CN2013101199573 A CN 2013101199573A CN 201310119957 A CN201310119957 A CN 201310119957A CN 103223481 A CN103223481 A CN 103223481A
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Abstract
The invention relates to a method and device for preparing high-purity and high-activity aluminium shots. The method comprises the steps of the fusion of an aluminium ingot, the preparation of aluminium shots, and the collection of the aluminium shots. The device for preparing the high-purity and high-activity aluminium shots comprises an aluminum melting furnace and a diversion trench for connecting the aluminum melting furnace with the device for preparing the high-purity and high-activity aluminium shots, and is characterized in that a liquid outlet of the diversion trench is mounted at the upper part of an aluminium shot preparation mould; uniformly distributed holes are formed in the bottom part of the aluminium shots preparation mould; a rotatable cooling rotary disc is mounted at the lower part of the aluminium shots preparation mould; and the cooling rotary disc is filled with cooling liquid. The method and device have the characteristics of simple process, high production efficiency, short process chain of the aluminium shots, simple device , low production cost, effectively guaranteed purity of the aluminium shots, and the like.
Description
Technical field
The present invention relates to a kind of preparation method and equipment of aluminium shot, particularly a kind of high-purity high activity aluminium shot preparation method and equipment.
Background technology
Aluminium shot is meant the alumina particles product that is shaped as go stone.High-purity high activity aluminium shot is widely used in high Purity Rare Metals oxide aluminothermic reduction aspect, as the preparation of metals such as High-purity Tantalum, niobium, titanium as a kind of high-efficient metallurgical reducing agent.The granularity of aluminium shot and activity are the important parameters of reduction removal of impurity effect in the meticulous metallurgical process of decision.Particle mean size is more little, high more the carrying out that helps reduction reaction more of surface-active, and the effect of removal of impurities is good more, finally can obtain highly purified reactive metal.
The method for preparing at present aluminium shot mainly is a Mechanical Method, is that aluminium ingot is rolled into diameter is aluminium wire about 12mm, is cut into the aluminium section then.This method is being rolled into aluminium ingot in the process of aluminium wire, because aluminium and oxygen have very strong affinity, along with attenuating of aluminium wire diameter, oxidation very easily takes place on the aluminium wire surface, forms stable oxide, thereby reduces its activity.
Summary of the invention
The objective of the invention is to solve the defective that prior art exists, provide a kind of with aluminium ingot directly fusing make the technology of beans is simple, aluminium shot epigranular, high-purity high activity aluminium shot preparation method and equipment that surface-active is high.
Technical scheme of the present invention is: a kind of high-purity high activity aluminium shot preparation method, and this method comprises:
1) aluminium ingot fusing: aluminium ingot is melted by the aluminium melting furnace, and keep temperature of aluminum liquid between 780 ℃～860 ℃;
2) preparation of aluminium shot: the aluminium liquid that melts in the aluminium melting furnace is introduced the uniform porose aluminium shot in bottom by guiding gutter prepare in the mould, aluminium liquid prepares hole on the mould by aluminium shot and falls into and be installed in the cooling rotating disc that cooling fluid is housed that aluminium shot prepares the mould bottom;
3) collection of aluminium shot: after will cooling off the aluminium shot collection in the rotating disc, both be the finished product aluminium shot.
Cooling fluid in the above-mentioned cooling rotating disc is that water or other have the cold oil or the cooling fluid of refrigerating function.
The rotary speed of above-mentioned cooling rotating disc is 1～4 rev/min.
The diameter that above-mentioned aluminium shot prepares the uniform hole of mold bottom is 0.2～0.5mm, and aluminium shot prepares that the distance between the cooling fluid is 50～200mm in mould bottom surface and the cooling rotating disc.
Aluminium liquid the cooling velocity of cooling in the rotating disc be 100～1000 degree/minute.
A kind of equipment for preparing high-purity high activity aluminium shot, comprise the aluminium melting furnace and connect guiding gutter between aluminium melting furnace and the equipment for preparing high-purity high activity aluminium shot, the liquid outlet that it is characterized in that guiding gutter is installed in the uniform porose aluminium shot in bottom and prepares mould top, the bottom for preparing mould at aluminium shot is equipped with the cooling rotating disc, cooling rotating disc lower end links to each other with motor by driving-chain, in the cooling rotating disc cooling fluid is housed.
The rotary speed of above-mentioned cooling rotating disc is 1～4 rev/min.
Cooling fluid in the above-mentioned cooling rotating disc is by the circulating pump cooling that circulates.
Prepare mould and cooling is equipped with seal closure between the rotating disc at above-mentioned aluminium shot, in seal closure, be connected with inert gas.
The present invention has following characteristics: 1, because the aluminium liquid after the fusing prepares the uniform hole of mold bottom by aluminium shot, form discrete droplet and directly fall into cooling fluid, protection by inert gas simultaneously, reduced contacting of aluminium liquid and air, can effectively guarantee the granularity and the surface-active of aluminium shot, have characteristics such as technology is simple, efficient height; Characteristics such as the aluminium shot technology chain of 2, producing is short, equipment is simple, production cost is low, the purity of aluminium shot can effectively guarantee.Because the production craft step of aluminium shot has only fusing and system beans two step process, the material that aluminium shot can be prepared simultaneously mould is designed to the alloy material with aluminium shot reducing metal homogeneity, as reduce the alloy material of metals such as tantalum, niobium or titanium, can effectively control aluminum solutions aluminium shot is prepared mould when corrosion, the impurity content in the aluminium shot.Processes and apparatus of the present invention can be used for suitability for industrialized production high Purity Rare Metals oxide aluminothermic reduction aluminium shot.
Description of drawings
Accompanying drawing 1 is the present device structural representation;
The aluminium shot photo that accompanying drawing 2 is produced for the present invention.
The specific embodiment
Embodiment 1:
As shown in Figure 1, with the temperature after the aluminium melting furnace fusing is aluminium liquid about 780 ℃, introducing uniform porose 2 the aluminium shot in bottom by guiding gutter 6 prepares in the mould 1, aluminium liquid is the 0.2mm hole by the diameter that aluminium shot prepares on the mould, fall into and be installed in the cooling rotating disc 3 that aluminium shot prepares the mould bottom, high temperature aluminum liquid cools off rapidly by the water that is contained in the cooling usefulness in the cooling rotating disc, cooling velocity be 1000 the degree/minute, cooling off rotating disc simultaneously rotates with 2 rev/mins speed, the average grain diameter that high temperature aluminum liquid is formed as shown in Figure 2 is 10mm, ratio of height to diameter is the aluminium shot about 1:1.5, after the aluminium shot collection in the cooling rotating disc, both be the finished product aluminium shot; Above-mentioned is in the example, and it is 50mm that aluminium shot prepares the distance of cooling off between the liquid level in mould bottom surface and the cooling rotating disc.
Embodiment 2:
As shown in Figure 1, with the temperature after the aluminium melting furnace fusing is aluminium liquid about 820 ℃, introducing uniform porose 2 the aluminium shot in bottom by guiding gutter 6 prepares in the mould 1, aluminium liquid is the 0.4mm hole by the diameter that aluminium shot prepares on the mould, fall into and be installed in the cooling rotating disc 3 that aluminium shot prepares the mould bottom, it is 100mm that aluminium shot prepares the distance of cooling off between the liquid level in mould bottom surface and the cooling rotating disc; High temperature aluminum liquid cools off rapidly by the water that is contained in the cooling usefulness in the cooling rotating disc, cooling velocity be 600 the degree/minute, cooling off rotating disc simultaneously rotates with 4 rev/mins speed, the average grain diameter that high temperature aluminum liquid is formed as shown in Figure 2 is that 11mm, ratio of height to diameter are the aluminium shot about 1:1.8, after the aluminium shot collection in the cooling rotating disc, both be the finished product aluminium shot.
Implement 3:
As shown in Figure 1, with the temperature after the aluminium melting furnace fusing is aluminium liquid about 860 ℃, introducing uniform porose 2 the aluminium shot in bottom by guiding gutter 6 prepares in the mould 1, aluminium liquid is the 0.5mm hole by the diameter that aluminium shot prepares on the mould, fall into and be installed in the cooling rotating disc 3 that aluminium shot prepares the mould bottom, it is 200mm that aluminium shot prepares the distance of cooling off between the liquid level in mould bottom surface and the cooling rotating disc; High temperature aluminum liquid cools off rapidly by the water that is contained in the cooling usefulness in the cooling rotating disc, cooling velocity be 100 the degree/minute, cooling off rotating disc simultaneously rotates with 3 rev/mins speed, the average grain diameter that high temperature aluminum liquid is formed as shown in Figure 2 is that 15mm, ratio of height to diameter are the aluminium shot about 1:3, after the aluminium shot collection in the cooling rotating disc, both be the finished product aluminium shot.
In the above-described embodiments, seal closure 5 is installed, in seal closure, is connected with inert gas for reducing contacting of high temperature aluminum liquid and air, preparing mould 1 and cool off between the rotating disc 3 at aluminium shot.Cooling rotating disc lower end links to each other with motor 4 by driving-chains such as belt or cog belts, and by the rotation of driven by motor cooling rotating disc, motor selects for use adjustable speed motor to adjust the rotary speed of cooling rotating disc.
Claims (9)
1. high-purity high activity aluminium shot preparation method, this method comprises:
1) aluminium ingot fusing: aluminium ingot is melted by the aluminium melting furnace, and keep temperature of aluminum liquid between 780 ℃～860 ℃;
2) preparation of aluminium shot: the aluminium shot that the aluminium liquid that melts in the aluminium melting furnace is introduced bottom uniform porose (2) by guiding gutter (6) prepares in the mould (1), and aluminium liquid prepares hole on the mould by aluminium shot and falls into and be installed in the cooling rotating disc (3) that cooling fluid is housed that aluminium shot prepares the mould bottom;
3) collection of aluminium shot: after will cooling off the aluminium shot collection in the rotating disc (3), both be the finished product aluminium shot.
2. high-purity high activity aluminium shot preparation method according to claim 1 is characterized in that cooling fluid in the above-mentioned cooling rotating disc (3) is that water or other have the cold oil or the cooling fluid of refrigerating function.
3. high-purity high activity aluminium shot preparation method according to claim 2, the rotary speed that it is characterized in that above-mentioned cooling rotating disc (3) is 1～4 rev/min.
4. high-purity high activity aluminium shot preparation method according to claim 3, it is characterized in that the diameter that above-mentioned aluminium shot prepares uniform hole (2), mould (1) bottom is 0.2～0.5mm, it is 50～200mm that aluminium shot prepares the distance of cooling off between the liquid level in mould bottom surface and the cooling rotating disc (3).
5. high-purity high activity aluminium shot preparation method according to claim 4, it is characterized in that the cooling velocity of aluminium liquid in cooling rotating disc (3) be 100～1000 degree/minute.
6. equipment for preparing high-purity high activity aluminium shot, comprise the aluminium melting furnace and connect guiding gutter between aluminium melting furnace and the equipment for preparing high-purity high activity aluminium shot, the aluminium shot that the liquid outlet that it is characterized in that guiding gutter (6) is installed in bottom uniform porose (2) prepares mould (1) top, the bottom for preparing mould at aluminium shot is equipped with cooling rotating disc (3), cooling rotating disc lower end links to each other with motor by driving-chain, in the cooling rotating disc cooling fluid is housed.
7. the equipment of the high-purity high activity aluminium shot of preparation according to claim 6, the rotary speed that it is characterized in that above-mentioned cooling rotating disc (3) is 1～4 rev/min.
8. the equipment of the high-purity high activity aluminium shot of preparation according to claim 7 is characterized in that cooling fluid in the above-mentioned cooling rotating disc (3) is by the circulating pump cooling that circulates.
9. the equipment of the high-purity high activity aluminium shot of preparation according to claim 8 is characterized in that preparing between mould (1) and cooling rotating disc (3) at above-mentioned aluminium shot seal closure (5) is installed, and is connected with inert gas in seal closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101199573A CN103223481A (en) | 2013-04-09 | 2013-04-09 | Method and device for preparing high-purity and high-activity aluminium shots |
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| CN2013101199573A CN103223481A (en) | 2013-04-09 | 2013-04-09 | Method and device for preparing high-purity and high-activity aluminium shots |
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| CN103223481A true CN103223481A (en) | 2013-07-31 |
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| CN2013101199573A Pending CN103223481A (en) | 2013-04-09 | 2013-04-09 | Method and device for preparing high-purity and high-activity aluminium shots |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500403A (en) * | 2018-12-14 | 2019-03-22 | 新疆众和股份有限公司 | A kind of preparation method of high-purity aluminum shot |
| CN115533108A (en) * | 2022-10-18 | 2022-12-30 | 西安交通大学 | Method and device for preparing metal particles by continuous dripping |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06218524A (en) * | 1993-01-25 | 1994-08-09 | Nippon Steel Corp | Method for casting molten steel refined in vacuum induction melting furnace |
| CN1817502A (en) * | 2006-03-24 | 2006-08-16 | 西南铝业（集团）有限责任公司 | Production of aluminum bean and mould thereof |
| JP2007105768A (en) * | 2005-10-14 | 2007-04-26 | Toho Titanium Co Ltd | Vacuum arc melting method for high melting point metal |
| CN101396727A (en) * | 2008-11-11 | 2009-04-01 | 河南省西保冶材集团有限公司 | Aluminium shot production technique and special device thereof |
-
2013
- 2013-04-09 CN CN2013101199573A patent/CN103223481A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06218524A (en) * | 1993-01-25 | 1994-08-09 | Nippon Steel Corp | Method for casting molten steel refined in vacuum induction melting furnace |
| JP2007105768A (en) * | 2005-10-14 | 2007-04-26 | Toho Titanium Co Ltd | Vacuum arc melting method for high melting point metal |
| CN1817502A (en) * | 2006-03-24 | 2006-08-16 | 西南铝业（集团）有限责任公司 | Production of aluminum bean and mould thereof |
| CN101396727A (en) * | 2008-11-11 | 2009-04-01 | 河南省西保冶材集团有限公司 | Aluminium shot production technique and special device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500403A (en) * | 2018-12-14 | 2019-03-22 | 新疆众和股份有限公司 | A kind of preparation method of high-purity aluminum shot |
| CN115533108A (en) * | 2022-10-18 | 2022-12-30 | 西安交通大学 | Method and device for preparing metal particles by continuous dripping |
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Application publication date: 20130731 |