CN1047803C - Liquid electric slag continuous refining process for composition copper - Google Patents
Liquid electric slag continuous refining process for composition copper Download PDFInfo
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- CN1047803C CN1047803C CN97106866A CN97106866A CN1047803C CN 1047803 C CN1047803 C CN 1047803C CN 97106866 A CN97106866 A CN 97106866A CN 97106866 A CN97106866 A CN 97106866A CN 1047803 C CN1047803 C CN 1047803C
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Abstract
The present invention relates to a technology for continuously refining red copper liquid electric slag, which belongs to a technology for continuously refining metal. The present invention is characterized in that: the technology comprises red copper sorting, extrusion packaging, melting, continuous liquid electric slag refining, copper liquid refining and continuous oxygen-free copper casting. The red copper is melted, continuously refined by liquid electric slag in a non-consumable electrode electric slag furnace, and directly and continuously cast to copper products in the technology. The procedure for fabricating electrolytic copper is omitted; thus, the technology is greatly simplified, and energy resources are saved. The production technology has the advantages of simplicity, fewer procedures, less power consumption, high production rate, high yield, high product quality, low content of non-metal impurities, metal oxide and harmful gas, high metal purity and good crystal structure.
Description
The present invention relates to the continuous refining process and the equipment of a kind of metal continuous refining process and equipment, particularly purple composition brass.
By " books records such as heavy non-ferrous metal materials processing handbook, " smelting non-ferrous metal and ingot casting ", " nonferrous metallurgy ", the continuous refining process of refined matte is: purple composition brass letter sorting, and---the extruding packing---is melted---casting electrode plate---preparation electrolytic solution---electrolysis---electrolytic copper---fusing---continuous casting---oxygen free copper.This complex process, oxygen free copper are raw material with the electrolytic copper, the production cost height; For the structure that realizes the employed smelting furnace of above-mentioned technology is: left has feed opening and feed opening cover plate for bell is arranged at fusing furnace chamber, the top of fusing furnace chamber on the bell; The middle part is a copper liquid transition furnace chamber; Right-hand is the continuous casting furnace chamber, is equipped with on the top of continuous casting furnace chamber and draws casting device, and the crystallizer that draws the casting device bottom is inserted in the continuous casting furnace chamber; In the transition furnace chamber with between fusing furnace chamber and the continuous casting furnace chamber, there is a hole to be communicated with respectively on the dividing plate with two furnace chambers; Bottom at fusing furnace chamber and continuous casting furnace chamber is equipped with electric induction heater.
The objective of the invention is to provide liquid electric slag continuous refining process for composition copper and the equipment that a kind of technology is simple, production cost is low.
The object of the present invention is achieved like this: purple composition brass letter sorting---extruding packing---fusing---the direct continuous refining of liquid electric slag---refined matte liquid---oxygen free copper continuous casting.
The structure that realizes the smelting furnace of above-mentioned technology is: between transition furnace chamber and the fusing furnace chamber on the hole on dividing plate top by the siphon screen pack is housed, at the end in hole along being connected with diversion trench; Hole between transition furnace chamber and the continuous casting furnace chamber on the dividing plate is equipped with closure plate in its underpart on the hole; By metal fluidization tower crushing shell is housed, transition furnace chamber top is equipped with electrode in the transition furnace chamber.
In the such scheme, because direct continuous casting became copper material after purple composition brass fusing was carried out the continuous liquid refining with the permanent electrode electroslag furnace in this technology, save the technological process of making electrolytic copper in the former technology, made this technology greatly simplify, save a large amount of energy, reached purpose of the present invention.This production technique is simple and operation is few, and power consumption is low, productivity and lumber recovery height, and good product quality, nonmetallic impurity and metal oxide and obnoxious flavour content are low, the clarity height of metal, crystal structure is good, remarkable in economical benefits.
Be described further in conjunction with the embodiments with reference to the accompanying drawings below
Fig. 1 is for upwards drawing casting smelting furnace structure iron.
Fig. 2 draws casting smelting furnace structure iron for level.
Fig. 3 upwards draws casting smelting furnace structure iron for coreless armature.
Embodiment 1: among Fig. 1, at first waste and old purple composition brass is sorted, clean, after squeezing the piece packing, send in the fusing furnace chamber of smelting furnace, continuously fusing in the fusing furnace chamber, copper liquid 23 is by the diversion trench 20 on smelting furnace furnace chamber top, under the syphonic effect of poroid or netted siphon screen pack 4, continuously flow in the transition furnace chamber, by electrode 7 heat fused in electroslag 5, when utilizing electric current to pass through liquid slag bath, electric capillary vibration that is produced and liquid metal enter caused slag bath violent stirring behind the slag, molten metal and electroslag 5 contact surfaces are constantly upgraded, metallurgical reaction strengthens, and impels that electroslag 5 constantly filters in the transition furnace chamber, nonmetal inclusion and oxide compound in the absorption molten metal make metal melt obtain purifying, refining.Molten metal after the refining, then the hole by transition furnace chamber bottom continuously flows in the continuous casting furnace chamber, and 15 intercrystallines of the crystallizer in the continuous casting unit, draws by continuous caster and casts high-quality anaerobic copper material 11.
The structure of smelting furnace is: bell 2 is arranged at the top of the fusing furnace chamber of left, and feed opening and feed opening cover plate 3 are arranged on the bell 2; The top of right-hand continuous casting furnace chamber be equipped with draw cover plate 14, make progress draw casting device 12 and thermopair 13, the crystallizer 15 that draws casting device 12 bottoms that makes progress is inserted in the continuous casting furnace chamber; Between transition furnace chamber and the fusing furnace chamber on the hole on dividing plate top by siphon screen pack 4 is housed, at the end in hole along being connected with diversion trench 20; Hole between transition furnace chamber and the continuous casting furnace chamber on the dividing plate is equipped with closure plate 10 in its underpart on the hole; Electroslag adds in velar plate 6, the transition furnace chamber below the diversion trench 20 by being equipped with on transition furnace chamber top, continuous casting furnace chamber cinclides above be connected with metal fluidization tower crushing shell 21, transition furnace chamber top is equipped with electrode 7 and is inserted in the transition furnace chamber, electrode 7 is a permanent electrode, electrode 7 tops are connected with electrode holde 8, connect power supply 9 on the electrode holde 8.In the bottom of smelting furnace electric induction heater 19 is installed.
Embodiment 2: among Fig. 2, draw casting device 12 what draw the level that is connected with on the casting furnace chamber lower sides, other with embodiment 1 with, summary.
Embodiment 3: among Fig. 3, feed opening on left fusing furnace chamber top is equipped with non-consumable coreless armature 26, the top of non-consumable coreless armature 26 is equipped with feeder 27, an electrode 7 is installed on transition furnace chamber top, an electrode 7 is respectively installed in bottom at fusing furnace chamber and transition furnace chamber, pair of electrodes 7 in the fusing furnace chamber and the pair of electrodes 7 in the transition furnace chamber respectively connect one group of power supply 30, and power supply is AC power, direct supply or AC and DC power supply and uses.
Claims (5)
1, a kind of liquid electric slag continuous refining process for composition copper is characterized in that: purple composition brass letter sorting---extruding packing---fusing---the direct continuous refining of liquid electric slag---refined matte liquid---oxygen free copper continuous casting;
Described liquid continuous refining is under syphonic effect, copper liquid is continuously flowed in the transition furnace chamber, be melted in the electroslag by heated by electrodes, electric capillary vibration that is produced when utilizing electric current by liquid slag bath and liquid metal enter caused slag bath violent stirring behind the slag, molten metal and electroslag contact surface are constantly upgraded, metallurgical reaction strengthens, impel electroslag in the transition furnace chamber constantly to filter, adsorb nonmetal inclusion and oxide compound in the molten metal, make that metal melt obtains purifying, refining.
2, a kind of smelting furnace of realizing purple composition brass liquid electric slag continuous refining sweetening process, bell is arranged at the top of the fusing furnace chamber of left, and feed opening and feed opening cover plate are arranged on the bell; The top of right-hand continuous casting furnace chamber be equipped with draw cover plate, make progress draw casting device and thermopair, the crystallizer that draws the casting device bottom that makes progress is inserted in the continuous casting furnace chamber; Bottom at smelting furnace is equipped with electric induction heater, it is characterized in that: on the hole on dividing plate top the siphon screen pack is installed between transition furnace chamber and the fusing furnace chamber, is connected with diversion trench on the edge, the end in hole; Hole between transition furnace chamber and the continuous casting furnace chamber on the dividing plate is equipped with closure plate in its underpart on the hole; Metal fluidization tower crushing shell is installed in the transition furnace chamber, and transition furnace chamber top is equipped with electrode.
3, the smelting furnace of realization liquid electric slag continuous refining process for composition copper according to claim 2 is characterized in that: the described casting device that draws can be that level is drawn casting device.
4, a kind of smelting furnace of realizing liquid electric slag continuous refining process for composition copper, bell is arranged at the top of the fusing furnace chamber of left, and feed opening and feed opening cover plate are arranged on the bell; The top of right-hand continuous casting furnace chamber be equipped with draw cover plate, make progress draw casting device and thermopair, the crystallizer that draws the casting device bottom that makes progress is inserted in the continuous casting furnace chamber; Bottom at smelting furnace is equipped with electric induction heater, it is characterized in that: electrode is the non-consumable coreless armature, be installed on the feed opening on left fusing furnace chamber top, the top of non-consumable coreless armature is equipped with feeder, an electrode is installed on transition furnace chamber top, an electrode is respectively installed in bottom at fusing furnace chamber and transition furnace chamber, and pair of electrodes in the fusing furnace chamber and the pair of electrodes in the transition furnace chamber respectively connect one group of power supply.
5, the smelting furnace of realization liquid electric slag continuous refining process for composition copper according to claim 4 is characterized in that: described power supply is AC power, direct supply or AC and DC power supply and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106866A CN1047803C (en) | 1997-02-28 | 1997-02-28 | Liquid electric slag continuous refining process for composition copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106866A CN1047803C (en) | 1997-02-28 | 1997-02-28 | Liquid electric slag continuous refining process for composition copper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1167834A CN1167834A (en) | 1997-12-17 |
| CN1047803C true CN1047803C (en) | 1999-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97106866A Expired - Fee Related CN1047803C (en) | 1997-02-28 | 1997-02-28 | Liquid electric slag continuous refining process for composition copper |
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| CN (1) | CN1047803C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389214C (en) * | 2003-12-16 | 2008-05-21 | 兰州理工大学 | Apparatus and method for removing non-metallic oxidized impurity in non-ferrous alloy liquid |
| CN100569968C (en) * | 2008-04-16 | 2009-12-16 | 倪如宝 | Production method of high-purity copper and low-oxygen bright copper rod |
| CN103725897B (en) * | 2013-12-27 | 2016-03-30 | 中南大学 | A kind of method of copper scap pyrogenic process continuous refining direct production high-purity oxygen-free copper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162648A (en) * | 1996-04-15 | 1997-10-22 | 邢贵生 | Method and apparatus for producing oxygenless copper from coarse copper |
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1997
- 1997-02-28 CN CN97106866A patent/CN1047803C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162648A (en) * | 1996-04-15 | 1997-10-22 | 邢贵生 | Method and apparatus for producing oxygenless copper from coarse copper |
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| CN1167834A (en) | 1997-12-17 |
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