CN102022911B - Double-molten channel three-body alloy smelting furnace with boosted stirring of liquid level - Google Patents
Double-molten channel three-body alloy smelting furnace with boosted stirring of liquid level Download PDFInfo
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- CN102022911B CN102022911B CN 201010559194 CN201010559194A CN102022911B CN 102022911 B CN102022911 B CN 102022911B CN 201010559194 CN201010559194 CN 201010559194 CN 201010559194 A CN201010559194 A CN 201010559194A CN 102022911 B CN102022911 B CN 102022911B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/16—Furnaces having endless cores
- H05B6/20—Furnaces having endless cores having melting channel only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
- F27B14/061—Induction furnaces
- F27B14/065—Channel type
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Abstract
The invention relates to a double-molten-channel three-body alloy smelting furnace with boosted stirring of liquid level, comprising a furnace body (8). The three-body alloy smelting furnace is characterized in that the furnace body (8) is divided into three zones in total from front to back, namely, a smelting zone (6), a diffusion zone (18) and an insulating zone (4), wherein the smelting zone (6) and the diffusion zone (18) are connected by a molten channel I (9) arranged in a sensing chamber 1 (13) at the bottom of the furnace body (8), and the diffusion zone (18) and the insulating zone (4) are connected by a melting channel II (21) arranged in a sensing chamber 2 (13) at the bottom of the furnace body (8); the diffusion zone (18) is divided into a front zone and a rear zone by a partitioning plate (17) with a intercommunicating pore in the middle, the tops of the front zone and the back zone are respectively provided with a liquid level booster 1 (16) and a liquid level booster 2 (19); and the top of the insulating zone (4) is provided with a crystallizer (3), and also is provided with a liquid level control device (14) with a floating block. By utilizing the double-molten-channel three-body alloy smelting furnace, the blocking of the molten channels can be prevented, and alloy elements are uniformly diffused.
Description
Technical field
The present invention relates to a kind of alloy melting stove.Belong to the alloy melting equipment technical field.
Background technology
Development along with electronic information technology; Comprehensive serviceability to the copper alloy conductive material requires increasingly high; Require it when keeping high strength (hardness), toughness, wearability, still keep characteristics such as higher electric conductivity, thermal conductivity, cold resistance, no ferromagnetism.These excellent characteristic make copper alloy become the important meals material that uses in the high-tech areas such as electric power, information, traffic, the energy, light industry and space flight and aviation gradually.A lot of occasions are seldom used with the form of fine copper, and this is the intensity lower (230～300 MPa) because of fine copper, though can reach 400 MPa after the cold working, percentage elongation is merely 2%, and when under heating or uniform temperature, using, its strengthening effect is easy to disappear.So fine copper only can be applied to electric conductor, radiator, decoration of stressed little electric power, electrical equipment, electronics etc.Under the prerequisite of some premium properties that keep fine copper, improve the intensity (hardness) and the wearability of copper as far as possible, high-strength high-conductive copper alloy is developed out gradually immediately.
For conductor material; Length conductive material particularly; With contact wire, carrier cable etc., it is global formations that these fields require products such as electric wire, electric railway, must not have mode such as welding to connect; Therefore require to cast out the oxygenless copper alloy bar base of length, generally adopt continuous up-casting copper bar unit to produce.Commercial production uses the smelting furnace in the continuous up-casting copper bar unit to be mostly single channel binary smelting furnace at present, and these cover unit smelting part branch characteristics are: integrate melting, be incubated, and compact conformation, maintenance and production operation are convenient.Structure is as shown in Figure 1.Adopting mode of heating is the cored electric induction furnace of power frequency, and it is equivalent to the transformer of a ribbon core, and the induction coil of stove is equivalent to the primary winding of transformer, and the copper metal in the smelting furnace is equivalent to the secondary coil of transformer.Industrial-frequency alternating current in the primary winding induces very big electric current in the channel metal, make the copper metal heating fusing in the channel, melts the copper metal in smelting zone and the heat preservation zone then.Crystallizer is inserted in the copper liquid in heat preservation zone, copper liquid cools off in crystallizer and solidifies, and can obtain continuous copper or copper alloy casting bar through upwards drawing continuously.Adopt charcoal or graphite to cover in whole melting simultaneously and the casting process, secluding air contacts with copper liquid, prevents the copper liquid oxidation.The copper bar that this smelting furnace is produced, oxygen content is desirable conductive material less than 20ppm.
But the smelting furnace of this structure exists slag to stop up phenomenons such as channel, promptly so-called disconnected ditch phenomenon.Particularly for the alloying element that is prone to oxidation, such as magnesium etc., often be used as deoxidier in the production, these elements are produced oxides and are bonded in easily on the channel, and the smelting furnace life-span is shortened dramatically.Simultaneously for copper alloy production; It is inhomogeneous that this smelting furnace also exists alloying element to stir; There is the alloying component segregation in the product of producing; And the content of alloying element is the deciding factor of ingot quality, therefore, research be applicable to large-scale production, long-life and the uniform continuous casting equipment of alloying component become hot issue gradually.
Summary of the invention
The present invention is directed to and draw problems such as the easily broken ditch of smelting furnace, alloying element diffusion be inhomogeneous on current, provide a kind of and can prevent that channel from blocking and the alloy melting stove of alloying element even diffused.
The objective of the invention is to realize like this: trisome alloy melting stove is stirred in a kind of pair of lapies liquid level supercharging; Comprise body of heater; Be separated into smelting zone, diffusion region and heat preservation zone totally three districts from A-P by two partition walls in the said body of heater; Wherein connect through the channel I in the 1# nernst cell that is arranged at bottom of furnace body between smelting zone and the diffusion region, connect through the channel II in the 2# nernst cell that is arranged at bottom of furnace body between diffusion region and the heat preservation zone; Said diffusion region is had the dividing plate of intercommunicating pore to be separated into former and later two zones by the middle part, and former and later two regional tops are equipped with 1# liquid level booster and 2# liquid level booster respectively, and said heat preservation zone also increases the leveling device that has floating block except that crystallizer is equipped with at the top.
The present invention is in order to make the alloying element even diffused, and except that smelting zone and heat preservation zone, between has increased the diffusion region.The middle part has the dividing plate of intercommunicating pore that the diffusion region is divided into two, and forms linker, installs the liquid level pressure charging system respectively at two regional tops that are separated.The alternation of two liquid level pressure charging systems, the pressure through compressed nitrogen presses down liquid level; Partly copper liquid flows out through intercommunicating pore and channel, and the formation of this turbulent flow has increased the stirring of copper liquid, impels the diffusion of alloying element; Make simultaneously that slag is washed in the channel, prevented the channel obstruction.Because the existence of diffusion region dividing plate has further increased the distance of flow of alloying component in copper liquid, helps the diffusion of alloying element so more.If can not remove this dividing plate to the alloy uniformity requirement is high, form the supercharging of single chamber list or remove a booster, form the single supercharging in two chambers.Increased leveling device in heat preservation zone, this device can be monitored copper liquid height in real time, control cathode copper addition and liquid level supercharging work.
The invention has the beneficial effects as follows:
Compact conformation of the present invention is reasonable, increases the diffusion region, and makes alloy distinguish even diffused at this through stirring; Simultaneously can accurately control liquid-level controller and monitor liquid level in real time; The alternation of liquid level booster makes copper liquid turbulization, and increase copper liquid and stir, and slag in the cleaning channel.Whole system is safe in utilization, and is easy to operate, and the alloy solution component segregation after the processing is little, and being fit to copper alloy processing needs.
To sum up, the present invention makes alloy even through adopting two channels through liquid level supercharging stirring, and prevents that channel from blocking.
Description of drawings
Fig. 1 is single channel binary smelting furnace structural representation in the past.
Fig. 2 stirs trisome alloy melting furnace structure sketch map for the two lapies liquid level superchargings of the present invention.
Fig. 3 is a liquid level boost controller workflow diagram of the present invention.
Reference numeral among the figure:
The specific embodiment
Referring to Fig. 2, Fig. 2 stirs trisome alloy melting furnace structure sketch map for the two lapies liquid level superchargings of the present invention.Can find out by Fig. 2; Alloy melting stove of the present invention; Comprise body of heater 8; Be separated into smelting zone 6, diffusion region 18 and heat preservation zone 4 totally three districts from A-P by two partition walls 5 in the body of heater 8, wherein connect through the channel I in the 1# nernst cell 13 that is arranged at body of heater 8 bottoms 9 between smelting zone 6 and the diffusion region 18, connect through the channel II in the 2# nernst cell 20 that is arranged at body of heater 8 bottoms 21 between diffusion region 18 and the heat preservation zone 4; Diffusion region 18 is had the dividing plate 17 of intercommunicating pore to be separated into former and later two zones by the middle part; Former and later two regional tops are equipped with 1# liquid level booster 16 and 2# liquid level booster 19 respectively, and 1# liquid level booster 16 closely is connected with body of heater 8 with 2# liquid level booster 19, seals air tight.Said heat preservation zone 4 also increases the leveling device 14 that has floating block except that crystallizer 3 is equipped with at the top, the leveling device 14 that has floating block is connected with liquid-level controller (PLC) 15, monitors liquid level in real time through PLC.
With the production of copper magnesium alloy is example; The electrolysis copper coin is added smelting zone 6; Treat that electrolysis copper coin fusing back adds magnesium ingot or copper magnesium intermediate alloy is smelted into a certain proportion of copper magnesium alloy copper liquid, copper liquid is sent to diffusion region 18, because the alloying elements distribution in this moment copper liquid is inhomogeneous through channel I 9; If this copper liquid directly is passed to heat preservation zone 4, must there be component segregation in the copper bar that continuous up-casting comes out.Therefore in diffusion region 18, there is the dividing plate 17 of intercommunicating pore that copper liquid is separated, increased the distance of flow of copper liquid like this, make the alloying element diffusion more abundant through the middle part.Through the alternately supercharging of 1# liquid level booster 16 and 2# liquid level booster 19, make copper liquid produce fluctuation up and down, impel the alloying element fully diffusion once more in the copper liquid.Fully the copper liquid after the even diffused is circulated to heat preservation zone 4 through channel II 21; In heat preservation zone except crystallizer 3; Increase the leveling device 14 that a cover has floating block, actual height that can current liquid level is adjusted the addition of electrolysis copper coin and alloying element immediately; Through the alternately supercharging of 1# liquid level booster 16 and 2# liquid level booster 19, make the alloying element diffusion in the copper liquid abundant.Because slag in channel I 9 and the channel II 21 can be in time cleared up in the fluctuation of copper liquid, guarantee that slag does not stop up channel simultaneously, prolong the service life of smelting furnace.
The setting of copper liquid height is directly connected in the copper liquid whether even diffused of alloying element; Whether simultaneously also be related to crystallizer in proper working order; Suppose that ablation zone is of a size of 800 * 400 * 1100mm in the smelting furnace; Two are separated area size and are 800 * 300 * 1100mm in the diffusion region, and the linker maximum height is 500mm, and heat preservation zone is of a size of 800 * 500 * 1000mm.Therefore because crystallizer generally inserts copper liquid 100～200mm, copper fluid wave dynamic height being set is 100mm, and then being pressurized district's height change is 400mm, and the minimum working depth of copper liquid is 900mm, and the high workload height of copper liquid is 1000mm.
Liquid level boost controller workflow such as Fig. 3: can know by flow chart; When two liquid level pressure charging systems are not all worked; The heat preservation zone liquid level is minimum, adjusts the addition of electrolysis copper coin immediately according to the liquid level minimum altitude, and alloying component is added according to the stokehold detection case.Start working when liquid level booster of controller control, the liquid level in this district is descended, other regional liquid level rises; When the copper liquid in heat preservation zone reached specified altitude, this liquid level booster of controller control quit work, and unloads pressurization gas simultaneously; The heat preservation zone liquid level is fallen after rise to minimum; Another liquid level booster of controller control this moment begins same work, and the effect of being stressed of copper liquid is back and forth flowed, and has not only washed away channel and intercommunicating pore; Copper liquid in the diffusion region is fully stirred, and alloying element is effectively spread.The setting of copper liquid minimum altitude should be taken into account the position of diffusion region intermediate membrane intercommunicating pore, and each regional size of smelting furnace, copper fluid wave dynamic height and crystallizer sheath sizes can be confirmed according to actual needs.
Claims (1)
1. trisome alloy melting stove is stirred in two lapies liquid level superchargings; Comprise body of heater (8); It is characterized in that: be separated into smelting zone (6), diffusion region (18) and heat preservation zone (4) totally three districts from A-P by two partition walls (5) in the said body of heater (8); Wherein connect through the channel I (9) in the 1# nernst cell (13) that is arranged at body of heater (8) bottom between smelting zone (6) and diffusion region (18), connect through the channel II (21) in the 2# nernst cell (20) that is arranged at body of heater (8) bottom between diffusion region (18) and the heat preservation zone (4); Said diffusion region (18) is had the dividing plate (17) of intercommunicating pore to be separated into former and later two zones by the middle part; Former and later two regional tops are equipped with 1# liquid level booster (16) and 2# liquid level booster (19) respectively; Said heat preservation zone (4) also increases the leveling device (14) that has floating block except that crystallizer (3) is equipped with at the top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010559194 CN102022911B (en) | 2010-11-25 | 2010-11-25 | Double-molten channel three-body alloy smelting furnace with boosted stirring of liquid level |
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| CN 201010559194 CN102022911B (en) | 2010-11-25 | 2010-11-25 | Double-molten channel three-body alloy smelting furnace with boosted stirring of liquid level |
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| CN102022911A CN102022911A (en) | 2011-04-20 |
| CN102022911B true CN102022911B (en) | 2012-04-04 |
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| CN108504880B (en) * | 2018-04-11 | 2020-02-14 | 中铁建电气化局集团康远新材料有限公司 | Production process of copper-tellurium alloy contact wire for high-speed railway |
| CN111471876B (en) * | 2020-05-07 | 2021-02-09 | 广州湘龙高新材料科技股份有限公司 | Preparation method of zinc alloy |
| CN111829342B (en) * | 2020-07-07 | 2024-09-13 | 中铁建电气化局集团康远新材料有限公司 | Self-filtering upward smelting furnace and self-filtering upward smelting method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3618917A (en) * | 1969-02-20 | 1971-11-09 | Asea Ab | Channel-type induction furnace |
| US4170713A (en) * | 1977-04-07 | 1979-10-09 | Butseniex Imant E | Channel-type induction furnace |
| CN2101203U (en) * | 1991-06-29 | 1992-04-08 | 广州市番禺县电缆厂 | Symmertry industry frequency induction combined smelting furnace |
| CN1065327A (en) * | 1991-03-27 | 1992-10-14 | 徐志毅 | Integrated stove |
| CN201062921Y (en) * | 2007-06-07 | 2008-05-21 | 泰兴市圣达铜业有限公司 | Energy-saving undercurrent type up-leading continuous casting power frequency influence combined electric furnace |
| CN201392095Y (en) * | 2009-03-27 | 2010-01-27 | 云南通变电磁线有限公司 | Pressure gradient type thermostatic electromagnetic melting furnace |
| CN201885564U (en) * | 2010-11-25 | 2011-06-29 | 中铁建电气化局集团康远新材料有限公司 | Triple alloy smelting furnace with double molten channels for pressurizing and stirring liquid level |
-
2010
- 2010-11-25 CN CN 201010559194 patent/CN102022911B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3618917A (en) * | 1969-02-20 | 1971-11-09 | Asea Ab | Channel-type induction furnace |
| US4170713A (en) * | 1977-04-07 | 1979-10-09 | Butseniex Imant E | Channel-type induction furnace |
| CN1065327A (en) * | 1991-03-27 | 1992-10-14 | 徐志毅 | Integrated stove |
| CN2101203U (en) * | 1991-06-29 | 1992-04-08 | 广州市番禺县电缆厂 | Symmertry industry frequency induction combined smelting furnace |
| CN201062921Y (en) * | 2007-06-07 | 2008-05-21 | 泰兴市圣达铜业有限公司 | Energy-saving undercurrent type up-leading continuous casting power frequency influence combined electric furnace |
| CN201392095Y (en) * | 2009-03-27 | 2010-01-27 | 云南通变电磁线有限公司 | Pressure gradient type thermostatic electromagnetic melting furnace |
| CN201885564U (en) * | 2010-11-25 | 2011-06-29 | 中铁建电气化局集团康远新材料有限公司 | Triple alloy smelting furnace with double molten channels for pressurizing and stirring liquid level |
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