CN1031629C - Metal refinery and continuous casting complex device - Google Patents
Metal refinery and continuous casting complex device Download PDFInfo
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- CN1031629C CN1031629C CN 94105778 CN94105778A CN1031629C CN 1031629 C CN1031629 C CN 1031629C CN 94105778 CN94105778 CN 94105778 CN 94105778 A CN94105778 A CN 94105778A CN 1031629 C CN1031629 C CN 1031629C
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- refining
- crystallizer
- refining furnace
- continuous casting
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Abstract
The present invention provides a metal refining and continuous casting complex device which belongs to the technical field of smelting and continuous casting. The present invention is characterized in that a refining furnace and a continuous casting machine are combined into integration, and a crystallizer of the continuous casting machine is directly connected with the refining furnace; the crystallizer is installed below the refining furnace or below the side surface of the refining furnace; a furnace chamber area of the refining furnace, which is adjacent to the crystallizer, is lower than the furnace bottom; the refining furnace is built by fireproofing materials. When the present invention is used, refined metal molten mass is directly injected into the crystallizer, casting blanks with high purity and high quality can be obtained, and the present invention has the advantages of short technological processes, little device investment and little energy consumption.
Description
The invention belongs to the smelting and the continuous casting field of metal, mainly be applicable to strands such as square billet, slab, circle base, the casting of producing the high-quality high cleanliness are excellent, casting silk.
Usually produce high clean metal strand, must in refining furnace, carry out refining earlier.In the production process of the metal strand of prior art, refining and continuous casting separately carry out, i.e. after the motlten metal process refining furnace refining, enter in the pans of conticaster, be cast into strand (atallurgical Plant and Technology, 1983 again, May, 44).Sometimes in casting light section size strand process in order to keep in the pans temperature of melt metal stable, adopt the pans eddy-current heating, or mode (JP58125345) such as plasma heating.Because motlten metal retention period when entering pans and in pans, can produce secondary oxidation, be difficult to obtain the motlten metal of high cleanliness, therefore for require to have high cleanliness, high-quality metal or alloy steel grade, adopt common refining and continuous casting to separate the technology of carrying out and be difficult to meet the demands.
The object of the present invention is to provide a kind of high-quality, high cleanliness strand of obtaining, refining of metal-continuous casting set composite that refining and continuous casting two procedures are combined as a whole.
Principle of the present invention is that refining of metal and continuous casting two procedures are combined into one, and promptly refining furnace and conticaster are combined as a whole, and the crystallizer of conticaster directly communicates with the burner hearth of refining furnace, makes the motlten metal of refining directly enter continuous cast mold.The metal that solidifies in crystallizer is pulled straight by Blank drawing machine, thereby casts continuously immediately when being implemented in refining or after the refining.
Refining furnace of the present invention is built by laying bricks or stones by refractory material and is formed.Crystallizer is installed on the below or the below, side of refining furnace.The eseparation ring that has special refractory to make between crystallizer and the refining furnace.Be coated with the silicate slag that shields on refining furnace motlten metal liquid level, slag is isolated from each other motlten metal and air, thus avoided motlten metal secondary oxidation, inhale nitrogen, inhale adverse effects such as hydrogen.When motlten metal reached uniform temperature in the molten bath, motlten metal flowed into the crystallizer of band water collar, and with after coagulation.This moment, the metal base that solidifies in the crystallizer was pulled out in the Blank drawing machine running, and meanwhile, the interior motlten metal of refining furnace continues to flow in the crystallizer and solidifies.Like this, along with the continuous running of Blank drawing machine, motlten metal solidifies, pulls out by crystallizer continuously, realizes continuous casting.
Compared with prior art, the present invention has following advantage:
1. can guarantee to obtain the strand of high cleanliness.
2. shortened technological process, equipment investment is little, and the construction period is short.
3. improve recovery rate of iron, reduced energy consumption and production cost.
Now the invention will be further described in conjunction with the accompanying drawings and embodiments.Accompanying drawing is to be refining furnace with the electroslag refining furnace, with the structural representation of electroslag remelting as the refining of metal-continuous casting set composite of refining mode.Among the figure, 1 is electrode, and 2 is refining furnace, and 3 is slag, and 4 is crystallizer, and 5 is motlten metal, and 6 is Blank drawing machine, and 7 is strand, and 8 is the crystallizer cooling water inlet, and 9 is the crystallizer coolant outlet.10 is eseparation ring, and 11 is the mouth of a river.Crystallizer directly is embedded on the furnace wall of refining furnace, and the head of its mouth of a river, eseparation ring and crystallizer is in the furnace lining of refining furnace, carries out tight fit.The refining furnace burner hearth zone adjacent with crystallizer is than furnace bottom negative area.
Electrode 1 is from the consumption electrode, and its material is consistent with molten metals.Refining furnace 2 is built by laying bricks or stones or is tied a knot for refractory material and forms.Slag 3 has electric conductivity, when powered electrode 1 inserted slag 3, the heat that produces by means of slag resistance made consumbuble-electrode melting change into motlten metal, and the molten metal drop passes slag blanket in dropping process, field trash in the drop is absorbed by slag, and motlten metal is purified.In refining furnace 2 bottoms or side crystallizer 4 is housed, after motlten metal flowed into crystallizer, superficial layer solidified rapidly, and under the drive of Blank drawing machine 6, the strand 7 that gradually superficial layer is solidified is pulled out in crystallizer.
In refining-casting process, control the burn-off rate and the temperature of melt metal of resmelting electrode by cross dimensions, supply voltage and the electric current of adjusting resmelting electrode 1, running speed by control Blank drawing machine 6 is adjusted casting speed, make metal molten speed identical, thereby keep the stable of the interior motlten metal liquid level of refining furnace with the frozen metal pulling rate.
To the metal and the alloy thereof of some kind, in order to keep the even of bath temperature, the motlten metal in the refining furnace adopts the mode that is blown into inert gas or electromagnetic induction to stir.
Electrode in the accompanying drawing also can use non-consumable electrode.After the motlten metal that slightly refined in this case enters refining furnace, carry out refining treatment earlier.In the refining process, contact temperature of melt metal in the electric arc heated that produces and the stabilised bath with motlten metal 5 by electrode 1.After refining finishes, start drive motors 6, strand 7 is pulled straight in crystallizer.
Adopt Processes and apparatus of the present invention since after the motlten metal refining without falling stove even cast base, so non-metallic inclusion is few in the strand.This refining-continuous cast method is suitable for producing high cleanliness metal and alloy.
Claims (4)
1, a kind of refining of metal-continuous casting set composite is characterized in that refining furnace and conticaster are combined as a whole, and the crystallizer of conticaster directly communicates with the burner hearth of refining furnace.
2, device according to claim 1 is characterized in that crystallizer is installed on the below or the below, side of refining furnace.
3, device according to claim 1 is characterized in that refining furnace is built by laying bricks or stones by refractory material to form.
4, device according to claim 1 is characterized in that the refining furnace burner hearth zone adjacent with crystallizer is than the recessed part of furnace bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105778 CN1031629C (en) | 1994-05-26 | 1994-05-26 | Metal refinery and continuous casting complex device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105778 CN1031629C (en) | 1994-05-26 | 1994-05-26 | Metal refinery and continuous casting complex device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1097664A CN1097664A (en) | 1995-01-25 |
| CN1031629C true CN1031629C (en) | 1996-04-24 |
Family
ID=5032186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94105778 Expired - Fee Related CN1031629C (en) | 1994-05-26 | 1994-05-26 | Metal refinery and continuous casting complex device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031629C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990027B (en) * | 2012-12-31 | 2015-07-01 | 上海大学 | Low-energy-consumption electromagnetic stirring method for continuous casting and metal continuous casting device |
| CN105506557A (en) * | 2015-12-18 | 2016-04-20 | 有研亿金新材料有限公司 | High-purity precious metal evaporation material and preparation method thereof |
-
1994
- 1994-05-26 CN CN 94105778 patent/CN1031629C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1097664A (en) | 1995-01-25 |
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