CN204281827U - A kind of electric slag remelted atmosphere protector driving part structure - Google Patents
A kind of electric slag remelted atmosphere protector driving part structure Download PDFInfo
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- CN204281827U CN204281827U CN201420790135.8U CN201420790135U CN204281827U CN 204281827 U CN204281827 U CN 204281827U CN 201420790135 U CN201420790135 U CN 201420790135U CN 204281827 U CN204281827 U CN 204281827U
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- protector
- horizontal cantilever
- coordinated signals
- column
- driving part
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Abstract
The utility model discloses a kind of electric slag remelted atmosphere protector driving part structure; comprise horizontal cantilever hoisting appliance and coordinated signals mechanism; coordinated signals mechanism is connected to the falling-rising also can leaning on the lifting coordinated signals protector of horizontal cantilever between horizontal cantilever and protector; it is characterized in that; described coordinated signals mechanism comprises steel cable; wireline upper end is fixed on described horizontal cantilever, and the other end is upwards walked around a fixed pulley being arranged on column upper end by fixing support arm and is connected with protector for backward time.The utility model can realize protector and electrode bar interlock, makes protector to rise with liquid level and synchronously rise, ensure that atmosphere protection effect, has the simple and reliable feature that links of structure simultaneously.
Description
Technical field
The utility model relates to a kind of electric slag remelted atmosphere protector, particularly relates to a kind of electric slag remelted atmosphere protector driving part structure.
Background technology
Metal electric slag hearth (having another name called electroslag remelting furnace) is a kind of metallurgical equipment utilizing electric current to be carried out melting as thermal source by the resistance heat that produces during slag, its structure mainly comprises the crystallizer of entirety in oven-like, is positioned at the column of crystallizer side, be provided with horizontal cantilever above column, horizontal cantilever is just 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 the slag bath treating melting, adopt electrode bar chuck to clamp cylindricality electrode bar, and allow electrode bar, slag bath, metal pool, steel ingot, end water tank can form current circuit by short net wire and transformer.When carrying out electroslag smelting, first inserted in slag the end of this electrode bar away from electroslag smelting electrode bar chuck, be energized subsequently to electrode bar, in galvanization, electrode bar and slag bath release joule heating, by the scraps fusing in slag bath.Molten metal pools liquid state, through slag bath, falls into crystallizer and forms metal pool, and simultaneously by water-cooled effect, quick solidification forms steel ingot.Before ingot solidification, the metal pool above it and slag bath, play insulation and feeding effect, ensures the compactness of steel ingot.In smelting process, crystallizer inwall is formed with the thin skull of one deck, not only makes surface of steel ingot bright and clean, also play insulation and heat-blocking action, more heat lower portion is conducted, is conducive to 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 the plasticity under the low temperature of steel alloy, room temperature and high temperature and impelling strength strengthen, and steel extend work-ing life, therefore electroslag smelting technique widely uses in the industry.
But in existing electroslag smelting technique, carry out esr under most employing atmospheric pressure state, under air, remelting easily causes the secondary oxidation of steel ingot, causes the scaling loss of active element, make the oxygen level in steel and inclusion content higher, be difficult to the special steel producing high-cleanness, high.
Atmosphere protection technology is provided with in the existing electroslag smelting device of part; but existing electroslag smelting atmosphere protection technology; all that atmosphere protection device is set on crystallizer; atmosphere protection device is connected (nitrogen or argon gas etc.) with inert protective gas source of the gas, is then injected to by shielding gas in crystallizer and realizes protection.But due in electroslag furnace smelting process; metal bath surface can have one and decline and the process of rising with electrode bar; therefore atmosphere protection device is in order to avoid interfering with rising liquid level; need to be arranged at the higher position of distance liquid level; like this; cause space between tuyere and molten metal comparatively large, be difficult to air to drain, be difficult to good protected effect.For preventing the oxygenation of esr process interalloy, reducing impurity and entering in alloy, being necessary very much should take better gas shield measure when esr, to improve metallurgical effect.
In order to solve the problem, applicant considers to be provided with a kind of electric slag remelted atmosphere protector, wherein be provided with protection portion separation structure and driving part structure, described protection portion separation structure has a protector, protector is positioned at body of heater to be also set in the annular hollow structure of electrode bar outside in compartment of terrain, protector has circumferentially been evenly arranged production well, and protector is connected with noble gas source by tracheae; Described driving part structure, comprises horizontal cantilever hoisting appliance and coordinated signals mechanism, and coordinated signals mechanism is connected to the falling-rising also can leaning on the lifting coordinated signals protector of horizontal cantilever between horizontal cantilever and protector.
Like this; when electric slag refusion and smelting; protector is positioned at ullage adjacent locations; and can link with horizontal cantilever hoisting appliance; electrode bar is declined to be caused in liquid level uphill process, and protector interlock is risen, and is in ullage all the time and closes on liquid level position; therefore drastically increase atmosphere protection effect, and then improve metallurgical effect.
But wherein, when driving part structure is set, also need to consider how to make it have the simple and reliable feature that links of structure.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of structure simple, and the reliable electric slag remelted atmosphere protector driving part structure that links.
In order to solve the problems of the technologies described above, the utility model have employed following technical scheme:
A kind of electric slag remelted atmosphere protector driving part structure; comprise horizontal cantilever hoisting appliance and coordinated signals mechanism; coordinated signals mechanism is connected to the falling-rising also can leaning on the lifting coordinated signals protector of horizontal cantilever between horizontal cantilever and protector; it is characterized in that; described coordinated signals mechanism comprises steel cable; wireline upper end is fixed on described horizontal cantilever, and the other end is upwards walked around a fixed pulley being arranged on column upper end by fixing support arm and is connected with protector for backward time.
Like this; adopt wireline to drive protector and horizontal cantilever interlock to realize controlling by fixed pulley, cause in liquid level uphill process when electrode bar moves downward, protector rises with liquid level and interlock is risen; the linked manner of mechanical structure, has the simple and reliable feature that links of structure.
Further, described horizontal cantilever hoisting appliance comprises described horizontal cantilever, horizontal cantilever coupling end is slidably mounted on column by the slide rail arranged vertical on column, horizontal cantilever hoisting appliance also comprises the lifting motor being positioned at column bottom, lifting motor output terminal to be connected with the screw mandrel being vertically juxtaposed on column side by speed reduction unit and screw mandrel can be driven to rotate, screw mandrel upper end and a nut screw connection formation screw pair be fixed on horizontal cantilever.
Like this, adopt feed screw nut sub-control horizontal cantilever to realize lifting, have structure simple, control reliable, mobile slowly stable and feature at the uniform velocity, can ensure control effects, improve metallurgical effect.
In sum, the utility model can realize the interlock of protector and electrode bar, makes protector to rise with liquid level and synchronously rise, ensure that atmosphere protection effect, has the simple and reliable feature that links of structure simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that have employed the metal electric slag refusion and smelting stove of the utility model structure.In figure, arrow represents direction of motion.
Embodiment
The utility model is described in further detail for the metal electric slag refusion and smelting stove that have employed the utility model structure below in conjunction with a kind of and accompanying drawing thereof.
During concrete enforcement: as shown in Figure 1, a kind of metal electric slag refusion and smelting stove that have employed the utility model structure, comprise entirety and be furnace binding and the crystallizer 14 being positioned at installation step lower, planar 15, also comprise vertically be arranged at crystallizer 14 side installation step above the column 5 of plane 1, horizontal cantilever 4 is provided with above column 5, horizontal cantilever 4 is just provided with by electrode bar chuck the electrode bar 8 extending down into crystallizer to crystallizer 14, wherein, also comprise atmosphere protection device, atmosphere protection device comprises protection portion separation structure and driving part structure, described protection portion separation structure has a protector 13, protector 13 is positioned at body of heater to be also set in the annular hollow structure of electrode bar 8 outside in compartment of terrain, protector 13 has circumferentially been evenly arranged production well 17, protector is connected with noble gas source by tracheae 10, described driving part structure is used for Control protection device and rises with liquid level 18 and the rising that links.
Like this; said apparatus is when electric slag refusion and smelting; protector is positioned at ullage adjacent locations (20-30mm); rare gas element is ejected in ullage from protector production well and forms protective atmosphere; because driving part structure can make protector rise and interlock rising with liquid level; like this, protector is in that ullage adjacent locations is jet to be protected all the time.Therefore drastically increase atmosphere protection effect, and then improve metallurgical effect.
Wherein, described driving part structure, comprises horizontal cantilever hoisting appliance and coordinated signals mechanism, and coordinated signals mechanism is connected to the falling-rising also can leaning on the lifting coordinated signals protector of horizontal cantilever between horizontal cantilever 4 and protector 13.
Like this, in smelting process, can control horizontal cantilever and slowly decline, make electrode bar lower end progressively extend into crystallizer lower inside position, the movement of such electrode bar causes gradually changing of electric current, improves metallurgical effect; Meanwhile, by linkage system by protector and the interlock of horizontal cantilever hoisting appliance, electrode bar is declined and causes in liquid level uphill process, protector interlock is risen, and is in ullage all the time and closes on liquid level position, improves protected effect.
Wherein, described horizontal cantilever hoisting appliance comprises described horizontal cantilever 4, horizontal cantilever 4 coupling end is slidably mounted on column 5 by the slide rail arranged vertical on column 5, horizontal cantilever hoisting appliance also comprises the lifting motor 2 being positioned at column bottom, lifting motor 2 output terminal to be connected with the screw mandrel 3 being vertically juxtaposed on column 5 side by speed reduction unit and screw mandrel 3 can be driven to rotate, and screw mandrel 3 upper end and a nut screw connection be fixed on horizontal cantilever form screw pair.
Like this, adopt feed screw nut sub-control horizontal cantilever to realize lifting, have structure simple, control reliable, mobile slowly stable and feature at the uniform velocity, can ensure control effects, improve metallurgical effect.
Wherein, described coordinated signals mechanism comprises steel cable 7, and wireline 7 upper end is fixed on described horizontal cantilever 4, and the other end is upwards walked around a fixed pulley 6 being arranged on column upper end by fixing support arm and is connected with protector 13 for backward time.
Like this; adopt wireline to drive protector and horizontal cantilever interlock to realize controlling by fixed pulley, cause in liquid level uphill process when electrode bar moves downward, protector rises with liquid level and interlock is risen; the linked manner of mechanical structure, has the simple and reliable feature that links of structure.
Wherein, described protection portion separation structure also comprises the strongback 11 that is set in the annular plate-like outside electrode bar, and strongback 11 is horizontally placed on above body of heater, and described tracheae 10 is steel pipe and protector 13 and strongback 11 is fixed with one.
Like this, strongback, carries out spacing when protector can be made to go downwards to limit position, ensures that enough melt spaces are left in below, also avoids the descending mistake of protector deeply contact with molten metal bath and damage.Meanwhile, tracheae is set to steel pipe and protector and strongback is fixed with one, and has structure simple, the advantage of good integrity.
Wherein, described protection portion separation structure also comprises uniform three the roller legs 16 being arranged on strongback surrounding; roller leg 16 upper end is arranged on strongback marginal position rotationally; lower end is provided with a roller 12; roller 12 is engaged in and is arranged in the vertical chute 9 of furnace body outer wall; also be provided with spring between roller leg 16 and strongback 11, spring action is in roller leg 16 upper end and the roller 12 of roller leg lower end is pressed in vertical chute.
Like this, be clamped on furnace body outer wall by three roller devices and move up and down, decrease frictional force and avoid stressed unbalance and stuck, make the lifting of protector that balance and stability all can be kept smooth.
Wherein, described production well 17 is positioned at protector 13 medial surface and lower surface is respectively provided with a circle, and is positioned at the production well inwardly tiltedly below setting of medial surface.Like this, air originally from the upwards annularly flow more laterally of side-lower in protector, can be squeezed body of heater lower space, improve protected effect after giving vent to anger by production well better.
When said apparatus is used for 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, adopt electrode bar grips live electrode rod again and be located at crystallizer shaft core position, control electrode rod is descending and make the conductive plate of extension electrode lower end and crystalliser feet, now strongback is positioned at body of heater upper surface position, then in body of heater, put into metal electroslag, metal electroslag floods to closing on position, protector lower surface (distance 20-30mm), then Control protection device ejection shielding gas forms protective atmosphere, electrode bar is energized simultaneously, electrode bar forms current circuit by the short net wire of conducting plates and bottom of furnace body, it is made to melt to the heating of metal electroslag, when molten metal liquid level covers metal electroslag surface location, extension electrode lower end melting enters in molten metal, now control electrode rod slowly moves downward, liquid level moves downward with electrode bar and rises gradually, protector rises with liquid level and rises under wireline effect, all the time ullage adjacent locations is in, realize interlock protection, terminate until smelt.
During concrete enforcement, further an elevating control motor can also be set at horizontal cantilever upper surface, by the solderless wrapped connection of wireline upper end on a reel by elevating control motor connection control, again a 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 to detect liquid level position and control elevating control motor to run to slow down or hoisting cable rising or falling speed, guarantee to be in fixing altitude range between protector lower surface and rising liquid level, to overcome the impact of the elevation drop change that may occur difference and bring due to protector lift velocity and liquid level lift velocity further, to realize atmosphere protection to liquid level better.
In sum, the utility model can rise with liquid level and realize slave type atmosphere protection, and have structure simple, stable and reliable operation, the advantage that atmosphere protection is effective, improves metallurgical effect.
Claims (2)
1. an electric slag remelted atmosphere protector driving part structure; comprise horizontal cantilever hoisting appliance and coordinated signals mechanism; coordinated signals mechanism is connected to the falling-rising also can leaning on the lifting coordinated signals protector of horizontal cantilever between horizontal cantilever and protector; it is characterized in that; described coordinated signals mechanism comprises steel cable; wireline upper end is fixed on described horizontal cantilever, and the other end is upwards walked around a fixed pulley being arranged on column upper end by fixing support arm and is connected with protector for backward time.
2. electric slag remelted atmosphere protector driving part structure as claimed in claim 1; it is characterized in that; described horizontal cantilever hoisting appliance comprises described horizontal cantilever; horizontal cantilever coupling end is slidably mounted on column by the slide rail arranged vertical on column; horizontal cantilever hoisting appliance also comprises the lifting motor being positioned at column bottom; lifting motor output terminal to be connected with the screw mandrel being vertically juxtaposed on column side by speed reduction unit and screw mandrel can be driven to rotate, screw mandrel upper end and a nut screw connection formation screw pair be fixed on horizontal cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420790135.8U CN204281827U (en) | 2014-12-15 | 2014-12-15 | A kind of electric slag remelted atmosphere protector driving part structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420790135.8U CN204281827U (en) | 2014-12-15 | 2014-12-15 | A kind of electric slag remelted atmosphere protector driving part structure |
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| CN204281827U true CN204281827U (en) | 2015-04-22 |
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| CN201420790135.8U Expired - Fee Related CN204281827U (en) | 2014-12-15 | 2014-12-15 | A kind of electric slag remelted atmosphere protector driving part structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604174A (en) * | 2017-10-23 | 2018-01-19 | 沈阳真空技术研究所 | Vacuum cold crucible skull crucible electrode transmission system |
-
2014
- 2014-12-15 CN CN201420790135.8U patent/CN204281827U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604174A (en) * | 2017-10-23 | 2018-01-19 | 沈阳真空技术研究所 | Vacuum cold crucible skull crucible electrode transmission system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20201215 |