CN201296773Y - Conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer - Google Patents
Conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer Download PDFInfo
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- CN201296773Y CN201296773Y CNU2008202176412U CN200820217641U CN201296773Y CN 201296773 Y CN201296773 Y CN 201296773Y CN U2008202176412 U CNU2008202176412 U CN U2008202176412U CN 200820217641 U CN200820217641 U CN 200820217641U CN 201296773 Y CN201296773 Y CN 201296773Y
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Abstract
The utility model relates to a conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer which includes a stripping system, a crystallizer system, an electrode, an electrode lifting system and an electrical power supply system. The stripping system includes a stripping upright post (7), a stripping platform (8) and a bottom water tank (10); the crystallizer system includes a crystallizer platform (6) and the crystallizer (5); the electrode lifting system uses two independent horizontal arm upright posts (2) and the horizontal arm (3); the electrical power supply system includes a transformer (1), a short network (13), a horizontal arm cable (12), a crystallizer cable (11) and a bottom water tank cable (9), one end of the horizontal arm cable (12) connects with an electrode holder (14) through the short network, another end connects with the transformer through the short network (13), the crystallizer cable (11) and one end of the bottom water tank cable (9) connect with the crystallizer (5) and the bottom water tank (11) respectively, another end connects with the transformer (1) through the short network (13). The conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer has advantages of low producing electrical consumption, high producing efficiency, simple producing procedure and high yield than continuous casting.
Description
(1) technical field
The utility model relates to a kind of novel crystallization device 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 purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of production power consumption low, and production efficiency height, production process are simple, novel crystallization device conduction, continuous casting type electroslag remelting furnace that lumber recovery is high than continuously cast bloom.
The purpose of this utility model is achieved in that a kind of novel crystallization device 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.
The utility model electroslag remelting furnace 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 utlity model has following characteristics:
1, can the big section ESR ingot of High-efficient Production
The utility model electroslag remelting furnace 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, it is then comparatively convenient to adopt utility model to produce big section ESR ingot, is beneficial in enormous quantities and continuous production especially, thereby can reduces 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 the overall structure synoptic diagram of the utility model novel crystallization device conduction, continuous casting type electroslag remelting furnace.
Reference numeral among the figure:
Electrode 4
Crystallizer 5
Crystallizer platform 6
End water tank cable 9
Crystallizer cable 11
Electrode holde 14
Steel ingot transport cart 15
Screw mandrel 16
Building-out capacitor cabinet 18
Switching cabinet 19.
(5) embodiment
Referring to Fig. 1, novel crystallization device conduction, continuous casting type electroslag remelting furnace that the utility model 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 novel crystallization device 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 novel crystallization device 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 novel crystallization device 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202176412U CN201296773Y (en) | 2008-11-24 | 2008-11-24 | Conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202176412U CN201296773Y (en) | 2008-11-24 | 2008-11-24 | Conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer |
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| Publication Number | Publication Date |
|---|---|
| CN201296773Y true CN201296773Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202176412U Expired - Lifetime CN201296773Y (en) | 2008-11-24 | 2008-11-24 | Conduct electricity, continuous casting type electroslag refining furnace of new type crystallizer |
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| CN (1) | CN201296773Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604564A (en) * | 2019-01-11 | 2019-04-12 | 潍坊市众诚佳合环保科技股份有限公司 | A kind of roll repair welding technique based on electroslag remelting |
| CN115710640A (en) * | 2022-12-08 | 2023-02-24 | 东北大学 | Split conductive crystallizer and electroslag remelting device and method for improving molten pool distribution |
-
2008
- 2008-11-24 CN CNU2008202176412U patent/CN201296773Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604564A (en) * | 2019-01-11 | 2019-04-12 | 潍坊市众诚佳合环保科技股份有限公司 | A kind of roll repair welding technique based on electroslag remelting |
| CN115710640A (en) * | 2022-12-08 | 2023-02-24 | 东北大学 | Split conductive crystallizer and electroslag remelting device and method for improving molten pool distribution |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |
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| CX01 | Expiry of patent term |