CN104404264B - A kind of electric slag remelted atmosphere protection device - Google Patents
A kind of electric slag remelted atmosphere protection device Download PDFInfo
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- CN104404264B CN104404264B CN201410770661.2A CN201410770661A CN104404264B CN 104404264 B CN104404264 B CN 104404264B CN 201410770661 A CN201410770661 A CN 201410770661A CN 104404264 B CN104404264 B CN 104404264B
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Abstract
The invention discloses a kind of electric slag remelted atmosphere protection device; it is characterized in that; including protection portion separation structure and running part structure; described protection portion separation structure has a protector; protector is in body of heater and compartment of terrain is set in the annular hollow-core construction outside electrode bar; circumferentially being evenly arranged venthole on protector, protector is connected with noble gas source by trachea；Described running part structure, including horizontal cantilever elevating mechanism and coordinated signals mechanism, coordinated signals mechanism is connected between horizontal cantilever and protector and can lean on the falling-rising lifting coordinated signals protector of horizontal cantilever.When the present invention enables to metal electric slag refusion and smelting, protective atmosphere protection realizes trailing type atmosphere protection with liquid level rising, has simple in construction, stable and reliable operation, the advantage that atmosphere protection is effective, improves metallurgical effect.
Description
Technical field
The present invention relates to a kind of metal smelt technology, particularly relate to a kind of electric slag remelted atmosphere protection device.
Background technology
The resistance heat that metal electroslag furnace (having another name called electroslag refining furnace) produces when being and utilize electric current by slag carries out a kind of metallurgical equipment of melting as thermal source, its structure mainly includes the entirety crystallizer in oven-like, is positioned at the column of crystallizer side, column is provided above horizontal cantilever, and horizontal cantilever is just being provided with, by electrode bar chuck, the electrode bar extending down into crystallizer to crystallizer.
During electroslag furnace smelting work, electroslag puts into crystallizer, and above crystallizer, form slag bath to be melted, use electrode bar chuck to clamp cylindricality electrode bar, and allow electrode bar, slag bath, metal bath, steel ingot, bottom water case can form current loop by short net wire and transformator.When carrying out electroslag smelting, first being inserted in slag away from the end of electroslag smelting electrode bar chuck by this electrode bar, be energized electrode bar subsequently, in galvanization, electrode bar and slag bath release Joule heat, are melted by the regulus in slag bath.Motlten metal pools liquid, through slag bath, falls into formation metal bath in crystallizer, and simultaneously by water-cooled effect, is quickly solidified to form steel ingot.Before ingot solidification, the metal bath above it and slag bath, play insulation and feeding effect, it is ensured that the compactness of steel ingot.In smelting process, crystallizer inwall is formed with one layer of thin skull, not only makes surface of steel ingot bright and clean, also play insulation and heat-blocking action, make more heat to lower conduction, beneficially steel ingot crystallographic orientation from bottom to top.Based on above reason, the ingot quality produced by electroslag smelting is good, performance is excellent, and plasticity and impact flexibility under the low temperature of steel alloy, room temperature and high temperature strengthen, and steel extend service life, therefore electroslag smelting technique is widely used in this industry.
But in existing electroslag smelting technique, mostly using under atmospheric pressure state and carry out electroslag remelting, under air, remelting easily causes the secondary oxidation of steel ingot,
Cause the scaling loss of active element so that oxygen content and inclusion content in steel are higher, are difficult to produce the special steel of high-cleanness, high.
Part existing electroslag smelting device is provided with atmosphere protection technology; but existing electroslag smelting atmosphere protection technology; it is all that atmosphere protection device is set on crystallizer; atmosphere protection device and inert protective gas source of the gas connect (nitrogen or argon etc.), realize protection in then protective gas is injected to crystallizer.But due in electroslag furnace smelting process; metal bath surface can have a process declined and rise with electrode bar; therefore atmosphere protection device is in order to avoid interfering with rising liquid level; need to be arranged at the position that distance liquid level is higher; so; cause space between puff prot and molten metal relatively big, be difficult to drain air, it is difficult to good protected effect.For preventing the oxygen supplement of alloy in esr process, reduce impurity and enter in alloy,
It is highly desirable to when electroslag remelting to take more preferable gas shield measure, to improve metallurgical effect.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved is: how to provide a kind of simple in construction, atmosphere protection is effective, and then improves the electric slag remelted atmosphere protection device of metallurgical effect.
In order to solve above-mentioned technical problem, present invention employs following technical scheme:
A kind of electric slag remelted atmosphere protection device; it is characterized in that; including protection portion separation structure and running part structure; described protection portion separation structure has a protector; protector is in body of heater and compartment of terrain is set in the annular hollow-core construction outside electrode bar; circumferentially being evenly arranged venthole on protector, protector is connected with noble gas source by trachea；Described running part structure, including horizontal cantilever elevating mechanism and coordinated signals mechanism, coordinated signals mechanism is connected between horizontal cantilever and protector and can lean on the falling-rising lifting coordinated signals protector of horizontal cantilever.
So; after electroslag refining furnace installs this device; when electric slag refusion and smelting; protector is positioned at ullage adjacent locations; noble gas is ejected in ullage from protector venthole and forms protective atmosphere; owing to running part structure can lean on linkage protector and horizontal cantilever elevating mechanism to be linked; electrode bar is declined and causes in liquid level uphill process; protector linkage rises; all the time it is in ullage and closes on liquid level position; therefore drastically increase atmosphere protection effect, and then improve metallurgical effect.
Further, described horizontal cantilever elevating mechanism includes described horizontal cantilever, horizontal cantilever is connected end and is slidably mounted on column by slide rail vertically arranged on column, horizontal cantilever elevating mechanism also includes the lifting motor being positioned at column bottom, lifting motor outfan is connected with the screw mandrel being vertically juxtaposed on column side by decelerator and screw mandrel can be driven to rotate, and screw mandrel upper end and a nut screw connection being fixed on horizontal cantilever form screw pair.
So, employing feed screw nut sub-control horizontal cantilever realizes lifting, has simple in construction, controls reliable, moves the most stable and at the uniform velocity feature, it is possible to ensure to control effect, raising metallurgical effect.
As optimization, described coordinated signals mechanism includes that steel cable, steel wire rope upper end are fixed on described horizontal cantilever, and the other end is arranged on by fixing support arm up around one that a fixed pulley of column upper end is backward lower to be connected with protector.
So; using steel wire rope to drive protector and horizontal cantilever linkage to realize controlling by fixed pulley, cause in liquid level uphill process when electrode bar moves downward, protector rises and the rising that links with liquid level; the linked manner of mechanical structure, has simple in construction and the reliable feature that links.
As optimization, described protection portion separation structure also includes the location-plate of an annular plate-like being set in outside electrode bar, and location-plate is horizontally placed on above body of heater, and described trachea is steel pipe and protector and location-plate is fixed with one.
So, location-plate, so that protector goes downwards to carry out during extreme position spacing, it is ensured that enough melt spaces are left in lower section, also avoid the descending mistake of protector deeply to contact with molten metal bath and damage.Meanwhile, trachea is set to steel pipe and protector and location-plate is fixed with one, and has simple in construction, the advantage of good integrity.
As optimization; described protection portion separation structure also includes uniform three the roller legs being arranged on location-plate surrounding; roller leg upper end is rotatably arranged in location-plate marginal position; lower end is provided with a roller; roller coordinates in the vertical chute being arranged on furnace body outer wall; being additionally provided with spring between roller leg and location-plate, spring acts on roller leg upper end and makes the roller compression of roller leg lower end in vertical chute.
So, it is clamped on furnace body outer wall up and down motion by three roller devices, decreases frictional force and to avoid stress unbalance and stuck, make the lifting of protector that balance and stability all can be kept smooth.
As optimization, described venthole is positioned at protector medial surface and lower surface is each provided with a circle, and the inside obliquely downward of venthole being positioned at medial surface is arranged.So, can side the most upwards annularly flow outward below inside protector after venthole is given vent to anger, it is possible to preferably air originally is expelled from lower portion of furnace body space, improve protected effect.
In sum, when the present invention enables to metal electric slag refusion and smelting, protective atmosphere protection realizes trailing type atmosphere protection with liquid level rising, has simple in construction, stable and reliable operation, the advantage that atmosphere protection is effective, improves metallurgical effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of metal electric slag refusion and smelting stove that have employed present configuration.In figure, arrow represents the direction of motion.
Detailed description of the invention
Below in conjunction with a kind of metal electric slag refusion and smelting stove that have employed present configuration and accompanying drawing thereof, the present invention is described in further detail.
nullWhen being embodied as: as shown in Figure 1，A kind of metal electric slag refusion and smelting stove that have employed present configuration，Including overall in furnace binding and be positioned at the crystallizer 14 of installation step lower, planar 15，Also include the column 5 being vertically arranged to plane 1 above the installation step of crystallizer 14 side，Column 5 is provided above horizontal cantilever 4，By electrode bar chuck, just crystallizer 14 is being provided with the electrode bar 8 extending down into crystallizer on horizontal cantilever 4，Wherein，Also include atmosphere protection device，Atmosphere protection device includes protection portion separation structure and running part structure，Described protection portion separation structure has a protector 13，Protector 13 is in body of heater and compartment of terrain is set in the annular hollow-core construction outside electrode bar 8，Venthole 17 circumferentially it has been evenly arranged on protector 13，Protector is connected with noble gas source by trachea 10，Described running part structure be used for controlling protector rise with liquid level 18 and the rising that links.
So; said apparatus is when electric slag refusion and smelting; protector is positioned at ullage adjacent locations (20-30mm); noble gas is ejected in ullage from protector venthole and forms protective atmosphere; due to running part structure so that protector rises and the rising that links with liquid level; so, protector is in ullage adjacent locations jet all the time and protects.Therefore drastically increase atmosphere protection effect, and then improve metallurgical effect.
Wherein, described running part structure, including horizontal cantilever elevating mechanism and coordinated signals mechanism, coordinated signals mechanism is connected between horizontal cantilever 4 and protector 13 and can lean on the falling-rising lifting coordinated signals protector of horizontal cantilever.
So, in smelting process, can control horizontal cantilever and slowly decline so that electrode bar lower end progressively extends into crystallizer lower inside position, the movement of such electrode bar causes gradually changing of electric current, improves metallurgical effect；Meanwhile, protector and horizontal cantilever elevating mechanism being linked by linkage so that electrode bar decline causes in liquid level uphill process, protector linkage rises, and is in ullage all the time and closes on liquid level position, improves protected effect.
Wherein, described horizontal cantilever elevating mechanism includes described horizontal cantilever 4, horizontal cantilever 4 is connected end and is slidably mounted on column 5 by slide rail vertically arranged on column 5, horizontal cantilever elevating mechanism also includes the lifting motor 2 being positioned at column bottom, lifting motor 2 outfan is connected with the screw mandrel 3 being vertically juxtaposed on column 5 side by decelerator and screw mandrel 3 can be driven to rotate, and screw mandrel 3 upper end and a nut screw connection being fixed on horizontal cantilever form screw pair.
So, employing feed screw nut sub-control horizontal cantilever realizes lifting, has simple in construction, controls reliable, moves the most stable and at the uniform velocity feature, it is possible to ensure to control effect, raising metallurgical effect.
Wherein, described coordinated signals mechanism includes that steel cable 7, steel wire rope 7 upper end are fixed on described horizontal cantilever 4, and the other end is arranged on by fixing support arm up around one that a fixed pulley 6 of column upper end is backward lower to be connected with protector 13.
So; using steel wire rope to drive protector and horizontal cantilever linkage to realize controlling by fixed pulley, cause in liquid level uphill process when electrode bar moves downward, protector rises and the rising that links with liquid level; the linked manner of mechanical structure, has simple in construction and the reliable feature that links.
Wherein, described protection portion separation structure also includes the location-plate 11 of an annular plate-like being set in outside electrode bar, and location-plate 11 is horizontally placed on above body of heater, and protector 13 and location-plate 11 for steel pipe and are fixed with one by described trachea 10.
So, location-plate, so that protector goes downwards to carry out during extreme position spacing, it is ensured that enough melt spaces are left in lower section, also avoid the descending mistake of protector deeply to contact with molten metal bath and damage.Meanwhile, trachea is set to steel pipe and protector and location-plate is fixed with one, and has simple in construction, the advantage of good integrity.
Wherein, described protection portion separation structure also includes uniform three the roller legs 16 being arranged on location-plate surrounding; roller leg 16 upper end is rotatably arranged in location-plate marginal position; lower end is provided with a roller 12; roller 12 coordinates in the vertical chute 9 being arranged on furnace body outer wall; being additionally provided with spring between roller leg 16 and location-plate 11, spring acts on roller leg 16 upper end and the roller 12 of roller leg lower end is pressed in vertical chute.
So, it is clamped on furnace body outer wall up and down motion by three roller devices, decreases frictional force and to avoid stress unbalance and stuck, make the lifting of protector that balance and stability all can be kept smooth.
Wherein, described venthole 17 is positioned at protector 13 medial surface and lower surface is each provided with a circle, and the inside obliquely downward of venthole being positioned at medial surface is arranged.So, can side the most upwards annularly flow outward below inside protector after venthole is given vent to anger, it is possible to preferably air originally is expelled from lower portion of furnace body space, improve protected effect.
Said apparatus is when metal electric slag refusion and smelting; first electrode bar lower end is welded and fixed the extension electrode that the preceding paragraph needs to be molten in molten metal; use electrode bar grips live electrode rod again and be located at crystallizer shaft core position; control electrode bar is descending and extension electrode lower end is contacted with the conductive plate of crystalliser feet; now location-plate is positioned at body of heater upper surface location; then putting into metal electroslag in body of heater, metal electroslag floods to closing on position, protector lower surface (distance 20-30mm)；Then control protector ejection protective gas and form protective atmosphere, electrode bar is energized simultaneously, electrode bar forms current loop by the short net wire of conductive plate and bottom of furnace body, it is made to melt the heating of metal electroslag, when molten metal liquid level covers metal electroslag surface location, extension electrode lower end molten enter in molten metal, now control electrode bar slowly to move downward, liquid level moves downward with electrode bar and is gradually increasing, protector rises with liquid level under steel wire rope effect and rises, all the time ullage adjacent locations it is in, realize linkage protection, terminate until smelting.
When being embodied as, further one elevating control motor can also be set at horizontal cantilever upper surface, steel wire rope upper end is connected on the reel controlled around being connected on one by elevating control motor, again one liquid level detection probe is set at protector lower surface, liquid level detection probe switch is connected with elevating control motor, make liquid level detection probe can detect liquid level position and control the operation of elevating control motor to slow down or boom hoist cable rising or falling speed, guarantee to be in fixing altitude range between protector lower surface and rising liquid level, with the impact overcoming the elevation drop being likely to occur difference due to the protector rate of climb and the liquid level rate of climb and bringing to change further, preferably liquid level is realized atmosphere protection.
In sum, the present invention can realize trailing type atmosphere protection with liquid level rising, has simple in construction, stable and reliable operation, the advantage that atmosphere protection is effective, improves metallurgical effect.
Claims (5)
1. an electric slag remelted atmosphere protection device; it is characterized in that; including protection portion separation structure and running part structure; described protection portion separation structure has a protector; protector is in body of heater and compartment of terrain is set in the annular hollow-core construction outside electrode bar; circumferentially being evenly arranged venthole on protector, protector is connected with noble gas source by trachea；Described running part structure, including horizontal cantilever elevating mechanism and coordinated signals mechanism, coordinated signals mechanism is connected between horizontal cantilever and protector and can lean on the falling-rising lifting coordinated signals protector of horizontal cantilever；
Described coordinated signals mechanism includes that steel cable, steel wire rope upper end are fixed on described horizontal cantilever, and the other end is arranged on by fixing support arm up around one that a fixed pulley of column upper end is backward lower to be connected with protector.
2. electric slag remelted atmosphere protection device as claimed in claim 1; it is characterized in that; described horizontal cantilever elevating mechanism includes described horizontal cantilever; horizontal cantilever is connected end and is slidably mounted on column by slide rail vertically arranged on column; horizontal cantilever elevating mechanism also includes the lifting motor being positioned at column bottom; lifting motor outfan is connected with the screw mandrel being vertically juxtaposed on column side by decelerator and screw mandrel can be driven to rotate, and screw mandrel upper end and a nut screw connection being fixed on horizontal cantilever form screw pair.
3. electric slag remelted atmosphere protection device as claimed in claim 1; it is characterized in that; described protection portion separation structure also includes the location-plate of an annular plate-like being set in outside electrode bar, and location-plate is horizontally placed on above body of heater, and described trachea is steel pipe and protector and location-plate is fixed with one.
4. electric slag remelted atmosphere protection device as claimed in claim 3; it is characterized in that; described protection portion separation structure also includes uniform three the roller legs being arranged on location-plate surrounding; roller leg upper end is rotatably arranged in location-plate marginal position; lower end is provided with a roller; roller coordinates in the vertical chute being arranged on furnace body outer wall; being additionally provided with spring between roller leg and location-plate, spring acts on roller leg upper end and makes the roller compression of roller leg lower end in vertical chute.
5. electric slag remelted atmosphere protection device as claimed in claim 1, it is characterised in that described venthole is positioned at protector medial surface and lower surface is each provided with a circle, and the inside obliquely downward of venthole being positioned at medial surface is arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410770661.2A CN104404264B (en) | 2014-12-15 | 2014-12-15 | A kind of electric slag remelted atmosphere protection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410770661.2A CN104404264B (en) | 2014-12-15 | 2014-12-15 | A kind of electric slag remelted atmosphere protection device |
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| CN104404264A CN104404264A (en) | 2015-03-11 |
| CN104404264B true CN104404264B (en) | 2016-08-24 |
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| CN110373553B (en) * | 2019-08-26 | 2021-03-23 | 东北大学 | A kind of anti-oxidation device and method for consumable electrode of electroslag furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6540012B1 (en) * | 1999-05-07 | 2003-04-01 | Ald Vacuum Technologies Ag | Electroslag remelting plant with a mould and a hood |
| CN2570301Y (en) * | 2002-09-26 | 2003-09-03 | 宝钢集团上海五钢有限公司 | Gas-phase closed type protecting equipment of electroslag remelting furnace |
| CN101691634A (en) * | 2009-09-08 | 2010-04-07 | 沈阳华盛冶金技术与装备有限责任公司 | Protective atmosphere electro-slag continuous casting furnace |
| CN202482405U (en) * | 2012-01-20 | 2012-10-10 | 苏州振吴电炉有限公司 | Electroslag furnace lifting vessel hood device |
| CN103508653A (en) * | 2013-09-25 | 2014-01-15 | 马钢(集团)控股有限公司 | Device and method for homogenizing high-temperature melt |
-
2014
- 2014-12-15 CN CN201410770661.2A patent/CN104404264B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6540012B1 (en) * | 1999-05-07 | 2003-04-01 | Ald Vacuum Technologies Ag | Electroslag remelting plant with a mould and a hood |
| CN2570301Y (en) * | 2002-09-26 | 2003-09-03 | 宝钢集团上海五钢有限公司 | Gas-phase closed type protecting equipment of electroslag remelting furnace |
| CN101691634A (en) * | 2009-09-08 | 2010-04-07 | 沈阳华盛冶金技术与装备有限责任公司 | Protective atmosphere electro-slag continuous casting furnace |
| CN202482405U (en) * | 2012-01-20 | 2012-10-10 | 苏州振吴电炉有限公司 | Electroslag furnace lifting vessel hood device |
| CN103508653A (en) * | 2013-09-25 | 2014-01-15 | 马钢(集团)控股有限公司 | Device and method for homogenizing high-temperature melt |
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Effective date of registration: 20210309 Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee after: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd. Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee before: CHONGQING IRON & STEEL (Group) Co.,Ltd. |
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