CN101418374A - Conductive and continuous casting type electroslag remelting furnace for crystallizer - Google Patents
Conductive and continuous casting type electroslag remelting furnace for crystallizer Download PDFInfo
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- CN101418374A CN101418374A CNA2008102354950A CN200810235495A CN101418374A CN 101418374 A CN101418374 A CN 101418374A CN A2008102354950 A CNA2008102354950 A CN A2008102354950A CN 200810235495 A CN200810235495 A CN 200810235495A CN 101418374 A CN101418374 A CN 101418374A
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Abstract
The invention relates to a crystallizer conducting continuous casting type electroslag remelting furnace which comprises a stripping system, a crystallizer system, an electrode, an electrode elevating system and a power supply system. The stripping system comprises a stripping upright column (7), a stripping platform (8) and a bottom water tank (10). The crystallizer system comprises a crystallizer platform (6) and a crystallizer (5). The electrode elevating system adopts two independent cross arm upright columns (2) and cross arms (3). The power supply system comprises a transformer (1), a short network (13), a cross arm cable (12), a crystallizer cable (11) and a bottom water tank cable (9), wherein one end of the cross arm cable (12) is connected with an electrode holder (14) through the short network (13), the other end of the cross arm cable (12) is connected with the transformer (1) through the short network (13), one end of the crystallizer cable (11) and one end of the bottom water tank cable (9) are connected with the crystallizer (5) and the bottom water tank (11) respectively, and the other end of the crystallizer cable (11) and the other end of the bottom water tank cable (9) are connected with the transformer (1). The crystallizer conducting continuous casting type electroslag remelting furnace has the advantages of low production electricity consumption, high production efficiency, simple production process, and higher yield than that of a continuous casting billet.
Description
(1) technical field
The present invention relates to a kind of crystallizer conduction, continuous casting type electroslag remelting furnace.Belong to steelmaking technical field.
(2) background technology
Esr is the resistance heat that produces when utilizing electric current by slag carries out melting as thermal source a method.Its purpose is mainly purified metals, and obtains the steel ingot of crystal structure even compact.Through the steel of esr, the purity height, sulphur content is low, and non-metallic inclusion is few, and surface of steel ingot is smooth, the crystallization even compact, metallographic structure and chemical ingredients are even.
Electroslag furnace structure in the past is as shown in Figure 1: be made up of transformer, transverse arm column, transverse arm, crystallizer, cable, Steel ingot transport cart etc.Because of adopting fixed long barrel shape crystallizer, ESR ingot length is generally in 2.5 meters.Produce the power consumption height by traditional way, production efficiency is low, and will be by forging or roughing cogging, the production process complexity, and lumber recovery is low than continuously cast bloom, thereby the production cost height.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of production power consumption low, production efficiency height, production process are simple, crystallizer conduction, continuous casting type electroslag remelting furnace that lumber recovery is high than continuously cast bloom.
The object of the present invention is achieved like this: a kind of crystallizer conduction, continuous casting type electroslag remelting furnace, it is characterized in that described remelting furnace comprises stripping system, crystallizer system, electrode, rise fall of electrodes system and power supply system,
Described stripping system comprises stripping column, stripping platform and end water tank, and the stripping platform is socketed on the stripping column, and end cistern device is on the stripping platform;
Described crystallizer system comprises crystallizer platform and crystallizer, and crystallizer platform stationary installation is in described stripping column top, and crystallizer is fixedly installed on the crystallizer platform, and crystallizer places directly over the water tank of the described end;
Described rise fall of electrodes system adopts two independently transverse arm column and transverse arms, on one side described transverse arm is socketed on the transverse arm column, the transverse arm the other side links to each other with the electrode upper end by electrode holde, and the electrode lower end is inserted in the described crystallizer;
Described power supply system comprises transformer, short net, transverse arm cable, crystallizer cable and end water tank cable, transverse arm cable one end is connected to electrode holde by short net, the other end is connected to transformer by short net, crystallizer cable and end water tank cable one end are connected to crystallizer and end water tank respectively, and the other end is connected to transformer by short net.
Principle of work:
1, conduction formula crystallizer
In the copper water mold, add solid-state slag, adopt the Graphite Electrodes slag making earlier, exchange electrode after having made slag, the end of consumable electrode is inserted wherein.When consumable electrode, slag and end water tank form current supply circuit by short net and transformer, just there is electric current to export from transformer, pass through molten slag, because in the above-mentioned current supply circuit, the resistance of slag is relatively large, occupied most of pressure drop of transformer secondary voltage, thereby in slag bath, produced a large amount of joule heatings, made it be in high temperature fused state.Because the temperature of slag bath is much larger than the fusing point of metal, thereby the end that makes consumable electrode is by heat fused gradually, molten metal is gathered into drop, metal drop comes off from electrode tip under the effect of gravity, pass slag bath and enter metal pool, because the pressure of water mold cooling, liquid metal is frozen into steel ingot gradually.When slag fully melts and reach certain temperature, after steel ingot reach a certain height in crystallizer, end water tank cable is disconnected, the crystallizer cable is connected, and at this moment consumable electrode, slag and crystallizer form current supply circuit by short net and transformer, and current circuit is the shortest.The power of transformer consumption is mainly used in the heating of liquid slag, compare on ESR ingot with traditional electroslag road part watt consumption to have tangible power savings advantages, and fluctuation of power is little, and the ESR ingot surface quality is better.
2, stripping
Begin stripping after liquid steel level reach a certain height, the burn-off rate of stripping speed and consumable electrode is complementary, and the molten steel in mold liquid level position is monitored by molten steel liquid level detection device, and controls stripping speed automatically.
Electroslag remelting furnace of the present invention adopts the electroslag remelting process of Alternating Current Power Supply, the startup of solid-state slag, single electrode remelting, fixed current-conductive mold, stripping mode.Adopt barrel-shaped current-conductive mold of fixed and stripping formula esr mode to produce, use Graphite Electrodes at crystallizer internalization slag.Form current supply circuit by communication power supply, electrode, slag and crystallizer conducting ring, it has changed heat distribution in the crystallizer, make steel-slag interface away from the consumable electrode termination, deposite metal drop temperature converges in the metal pool to drip near liquidus temperature, and the relational degree between the metal pool degree of depth and power input and the electrode melting speed is significantly reduced.Increasing substantially electrode melting speed like this, promptly under the condition that correspondingly increases substantially stripping speed, the crystalline quality of strand still can keep the level of traditional electroslag ingot.Obviously, this mode has reduced power consumption significantly, has improved production efficiency, low production cost.
The present invention has following characteristics:
1, can the big section ESR ingot of High-efficient Production
Electroslag remelting furnace of the present invention can satisfy the demand of some particular clients, and traditional electroslag remelting furnace will be produced the big ingot of same size, and then its production process equipment is comparatively complicated, and the production cycle is very long, cost is higher.By contrast, adopt the big section ESR ingot of invention production then comparatively convenient, be beneficial in enormous quantities and continuous production especially, thereby can reduce production costs.
2, the bottom pumping type electroslag ingot has tangible length advantage
According to the technology of present grasp, the longest 6m that reaches of electroslag ingot length, this just is better than the length of traditional ESR ingot greatly.Because length increases, its direct advantage is exactly to change the lumber recovery that rolls or change forging significantly to improve, and secondly is exactly that finished product length significantly improves the requirement (as big specification thick-walled seamless steel pipes) that can satisfy specialty products.
3, energy consumption is lower
According to the production practice of novel electroslag furnace, crystallizer conduction electroslag steel power consumption is about 1300 degree, a little less than the power consumption of common electrical slag hearth.Newly-increased electroslag furnace is by technological improvement and strengthen operational administrative, is expected to make the power consumption level further to reduce.
4, electroslag ingot is to roll the superiority condition of generation forging
φ 600mm * 6m ESR ingot that novel electroslag furnace is produced can the rolling large-size bar, compares with traditional ESR ingot forging large circular steel, and its lumber recovery can improve about 8 percentage points, and process cost can reduce nearly 1000 yuan/ton, and its advantage is fairly obvious.
(4) description of drawings
Fig. 1 is an electroslag furnace structural representation in the past.
Fig. 2 is for crystallizer of the present invention conducts electricity, the overall structure synoptic diagram of continuous casting type electroslag remelting furnace.
Reference numeral among the figure:
Electrode 4
Crystallizer 5
Crystallizer platform 6
Stripping column 7
End water tank cable 9
Crystallizer cable 11
Electrode holde 14
Steel ingot transport cart 15
Screw mandrel 16
Drive unit 17
Building-out capacitor cabinet 18
Switching cabinet 19.
(5) embodiment
Referring to Fig. 1, crystallizer conduction, the continuous casting type electroslag remelting furnace that the present invention relates to mainly are made up of stripping system, crystallizer system, electrode, rise fall of electrodes system, power supply system, Controlling System and water coolant etc.
Described stripping system mainly is made up of stripping column 7, stripping platform 8 and end water tank 10.Stripping platform 8 is socketed on the stripping column 7, and water tank 10 devices in the end are on stripping platform 8.
Described crystallizer system mainly is made up of crystallizer platform 6 and crystallizer 5.Crystallizer platform 6 stationary installations are in described stripping column 7 tops, and crystallizer 5 is fixedly installed on the crystallizer platform 6, and crystallizer 5 places directly over the water tank of the described end 10.Crystallizer 5 adopts water-cooled bucket formula current-conductive mold.
Described rise fall of electrodes system adopts two independently transverse arm column 2 and transverse arms 3.Described transverse arm 3 is socketed on the transverse arm column 2 on one side, and transverse arm 3 the other sides link to each other with electrode 4 upper ends by electrode holde 14, and electrode 4 lower ends are inserted in the described crystallizer 5.Transverse arm 3 is also rotatable.Rise fall of electrodes is the ball-screw transmission.Single melting station, the remelting of exchange electrode mode.
Described power supply system mainly is made of high-tension switch cabinet, transformer 1, short net 13, transverse arm cable 12, crystallizer cable 11 and end water tank cable 9.Form of power is a single phase ac.
Claims (3)
1, a kind of crystallizer conduction, continuous casting type electroslag remelting furnace is characterized in that described remelting furnace comprises stripping system, crystallizer system, electrode, rise fall of electrodes system and power supply system,
Described stripping system comprises stripping column (7), stripping platform (8) and end water tank (10), and stripping platform (8) is socketed on the stripping column (7), and end water tank (10) installs on stripping platform (8);
Described crystallizer system comprises crystallizer platform (6) and crystallizer (5), crystallizer platform (6) stationary installation is in described stripping column (7) top, crystallizer (5) is fixedly installed on the crystallizer platform (6), and crystallizer (5) places directly over the water tank of the described end (10);
Described rise fall of electrodes system adopts two independently transverse arm column (2) and transverse arms (3), described transverse arm (3) is socketed on the transverse arm column (2) on one side, transverse arm (3) the other side links to each other with electrode (4) upper end by electrode holde (14), and electrode (4) lower end is inserted in the described crystallizer (5);
Described power supply system comprises transformer (1), short net (13), transverse arm cable (12), crystallizer cable (11) and end water tank cable (9), transverse arm cable (12) one ends are connected to electrode holde (14) by short net (13), the other end is connected to transformer (1) by short net (13), crystallizer cable (11) and end water tank cable (9) one ends are connected to crystallizer (5) and end water tank (11) respectively, and the other end is connected to transformer (1) by short net (13).
2, a kind of crystallizer conduction according to claim 1, continuous casting type electroslag remelting furnace is characterized in that described short net (13) is made of copper bar and copper pipe.
3, a kind of crystallizer conduction according to claim 1 and 2, continuous casting type electroslag remelting furnace is characterized in that described crystallizer (5) adopts water-cooled bucket formula current-conductive mold.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102354950A CN101418374A (en) | 2008-11-24 | 2008-11-24 | Conductive and continuous casting type electroslag remelting furnace for crystallizer |
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| CNA2008102354950A CN101418374A (en) | 2008-11-24 | 2008-11-24 | Conductive and continuous casting type electroslag remelting furnace for crystallizer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818257B (en) * | 2010-05-13 | 2011-08-03 | 应达工业（上海）有限公司 | Conductive connecting device for electroslag refining furnace |
| CN102031388B (en) * | 2009-09-29 | 2012-12-12 | 上海重型机器厂有限公司 | 450-ton electroslag remelting furnace |
| CN103066608A (en) * | 2012-12-21 | 2013-04-24 | 苏州振吴电炉有限公司 | Three-phase equilibrium single-double pole electric slag furnace |
| CN103088220A (en) * | 2013-01-30 | 2013-05-08 | 东南大学 | Three-phase-equilibrium electroslag refining furnace |
| CN103173630A (en) * | 2013-03-06 | 2013-06-26 | 浙江电渣核材有限公司 | Electroslag remelting furnace |
| CN104152709A (en) * | 2014-08-18 | 2014-11-19 | 洛阳双瑞特种装备有限公司 | Production process for corrosion resistant alloy electroslag remelting slab with thickness smaller than 200 mm and equipment |
| CN105648229A (en) * | 2016-04-12 | 2016-06-08 | 潍坊亚东冶金设备有限公司 | Energy-saving multi-coaxial heavy-current conducting short network |
| CN107287436A (en) * | 2016-04-13 | 2017-10-24 | 覃远信 | Single upright column and double conductive cross arm stripping formula electroslag remelting furnace apparatus and remelting method |
| CN108251654A (en) * | 2018-03-19 | 2018-07-06 | 武汉科技大学 | A kind of electroslag remelting device and method for being used to refine old metal particle |
| CN109112318A (en) * | 2018-10-19 | 2019-01-01 | 武汉科技大学 | It is a kind of for recycling the remelting method of unqualified electrolytic metal |
-
2008
- 2008-11-24 CN CNA2008102354950A patent/CN101418374A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031388B (en) * | 2009-09-29 | 2012-12-12 | 上海重型机器厂有限公司 | 450-ton electroslag remelting furnace |
| CN101818257B (en) * | 2010-05-13 | 2011-08-03 | 应达工业（上海）有限公司 | Conductive connecting device for electroslag refining furnace |
| CN103066608A (en) * | 2012-12-21 | 2013-04-24 | 苏州振吴电炉有限公司 | Three-phase equilibrium single-double pole electric slag furnace |
| CN103088220A (en) * | 2013-01-30 | 2013-05-08 | 东南大学 | Three-phase-equilibrium electroslag refining furnace |
| CN103173630A (en) * | 2013-03-06 | 2013-06-26 | 浙江电渣核材有限公司 | Electroslag remelting furnace |
| CN103173630B (en) * | 2013-03-06 | 2014-07-02 | 浙江电渣核材有限公司 | Electroslag remelting furnace |
| CN104152709A (en) * | 2014-08-18 | 2014-11-19 | 洛阳双瑞特种装备有限公司 | Production process for corrosion resistant alloy electroslag remelting slab with thickness smaller than 200 mm and equipment |
| CN104152709B (en) * | 2014-08-18 | 2016-03-23 | 洛阳双瑞特种装备有限公司 | A kind of thickness is less than the non-corrosive metal electroslag remelting plate blank production technology and equipments of 200mm |
| CN105648229A (en) * | 2016-04-12 | 2016-06-08 | 潍坊亚东冶金设备有限公司 | Energy-saving multi-coaxial heavy-current conducting short network |
| CN105648229B (en) * | 2016-04-12 | 2017-07-04 | 潍坊亚东冶金设备有限公司 | The short net of energy-saving many coaxial conducting heavy currents |
| CN107287436A (en) * | 2016-04-13 | 2017-10-24 | 覃远信 | Single upright column and double conductive cross arm stripping formula electroslag remelting furnace apparatus and remelting method |
| CN108251654A (en) * | 2018-03-19 | 2018-07-06 | 武汉科技大学 | A kind of electroslag remelting device and method for being used to refine old metal particle |
| CN109112318A (en) * | 2018-10-19 | 2019-01-01 | 武汉科技大学 | It is a kind of for recycling the remelting method of unqualified electrolytic metal |
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Open date: 20090429 |