CN104046791B - A kind of metal electroslag refining furnace and electrode centering method thereof - Google Patents
A kind of metal electroslag refining furnace and electrode centering method thereof Download PDFInfo
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- CN104046791B CN104046791B CN201410316405.6A CN201410316405A CN104046791B CN 104046791 B CN104046791 B CN 104046791B CN 201410316405 A CN201410316405 A CN 201410316405A CN 104046791 B CN104046791 B CN 104046791B
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Abstract
The invention discloses a kind of metal electroslag refining furnace, comprise that entirety is the crystallizer of stove shape, pillar, transverse arm and electrode; Also include the Data Control treatment system for electrical control; It is characterized in that, also comprise the testing agency for detection of electrode position, and the actuating unit moving horizontally for promoting crystallizer, described testing agency is connected with Data Control treatment system and for transmitting detection data, and described actuating unit is connected with Data Control treatment system and for receiving instruction. A kind of electrode centering method that adopts above-mentioned metal electroslag refining furnace is also disclosed, when centering, first detect electrode distance size by three position sensors, conversion position coordinates is decomposed into along the distance component of two actuating unit application of force directions again, controls actuating unit and has moved centering. The present invention has can facilitate centering, reduces crystallizer failure phenomenon, extends the crystallizer advantage in service life.
Description
Technical field
The present invention relates to a kind of metal electric slag refusion and smelting technical field; Particularly relate to a kind of metal electroslag refining furnace.
Background technology
Metal electric slag hearth is the resistance heat that produces while utilizing electric current by slag carries out melting a kind of metallurgical equipment as thermal source, its structure mainly comprises that entirety is the crystallizer of stove shape, is positioned at the pillar of crystallizer one side, pillar top is provided with transverse arm, on transverse arm, just crystallizer is provided with to the electrode that extends down into crystallizer; Also include the Data Control treatment system for electrical control.
Wherein, crystallizer is the parts of electroslag remelting most critical, and solidification and crystallization, the ingot casting moulding of the fusing of electrode, the refining of metal and molten metal all complete in crystallizer. Electroslag remelting crystalizer is welded by the shell of mild steel and the inner tube of red copper conventionally, adds water inlet pipe, outlet pipe. Crystallizer plays a part working chamber. Crystallizer is because hardness and the intensity of copper coin itself are lower, and equipment designs and operating personnel's operation factors can cause inefficacy. The failure mode of crystallizer for electroslag furnace is mainly divided into improper the causing of electrode and crystallizer Disalignment gap and beats arc and the crystallizer two kinds of failure modes of uneven distortion of being heated. Beat arc and lost efficacy and be mainly due to electrode and crystallizer Disalignment, gap is improper to cause, distortion is because the crystallizer inequality of being heated causes, these two kinds of failure modes all with electrode and crystallizer centering whether well to ensure that respective clearance exists much relations. Centering is good, can effectively ensure that electrode is consistent with crystallizer relative gap, can prevent that electrode and crystallizer from beating arc in smelting process, can make crystallizer be heated evenly simultaneously, is out of shape little. In existing electroslag smelting operation, the centering of crystallizer and electrode is all to adopt manually to complete, and so not only operating process is loaded down with trivial details, and can introduce human error, and alignment deviation is large. In smelting process, the centering of electrode and crystallizer is adjusted also and is manually completed under operating personnel constantly observe, not only affecting production equipment uses, and seriously reduce production efficiency, this completely by the manually-operated mode of production, due to electrode and crystallizer center corresponding size data message in cannot Dynamic Extraction smelting process, so be difficult to smelting process related data to be controlled in real time, and after there is deviation, operator only goes to regulate electrode and crystallizer centering by rule of thumb, cause unavoidably second accident, therefore do not reach regulating effect. Electrode and crystallizer Disalignment cause again the crystallizer inequality of being heated, thereby cause mould deformation to lose efficacy. Greatly shorten the service life of crystallizer.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how to provide one can facilitate centering, reduce crystallizer failure phenomenon, extend crystallizer metal electroslag refining furnace and the electrode centering method thereof in service life.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of metal electroslag refining furnace, comprises that entirety is the crystallizer of stove shape, is positioned at the pillar of crystallizer one side, and pillar top is provided with transverse arm, on transverse arm, just crystallizer is provided with to the electrode that extends down into crystallizer; Also include the Data Control treatment system for electrical control; It is characterized in that, also comprise the testing agency for detection of electrode position, and the actuating unit moving horizontally for promoting crystallizer, described testing agency is connected with Data Control treatment system and for transmitting detection data, and described actuating unit is connected with Data Control treatment system and for receiving instruction.
In the present invention, be provided with testing agency for detection of electrode position, then judge whether disalignment and calculate offset distance of electrode position, then control actuating unit and promote crystallizer and move, make electrode centering again. The present invention has adopted electrode to maintain static, and promotes the crystallizer mode centering of moving, and the whole-process automatic collection of centering and control, realized centering automation, can facilitate centering, reduces crystallizer failure phenomenon, extends crystallizer service life.
As optimization, described testing agency comprises that three are fixed on the position sensor of crystallizer upper surface along crystallizer axial line arranged in concentric circles and annular evenly arranging, and position sensor is for detection of electrode position.
Its Position Sensor, it can be approach switch, the devices such as photoelectric sensor, like this, three position sensors of setting, can facilitate the distance of detecting electrode, in the time that equating, electrode distance can judge centering, in the time that the electrode distance detecting does not wait, can be judged as disalignment, and can calculate fast electrode offset distance. Therefore have easy to detect fast accurately and reliably and can calculate fast electrode offset distance, to facilitate the advantage of again controlling centering.
As optimization, described crystallizer is arranged on base, and base lower surface is arranged on movably by universal wheel on the support ground of a level, and described actuating unit is two covers, and two cover actuating units are mutually vertical to the application of force direction of crystallizer.
After optimizing like this, Data Control treatment system calculates after deviation electrode, can be converted into the distance displacement on both direction, and then controls two cover actuating unit actions, and mobile crystallizer position makes electrode centering again exactly.
As further optimization, described actuating unit comprises that is fixed on the ground servomotor of support, servomotor output shaft level is just to crystallizer base and be fixedly connected with a screw mandrel, wire rod thread is engaged in a nut being fixed on crystallizer base, and servomotor can drive screw mandrel rotation and promote crystallizer base by nut and move. Wherein, servomotor is connected with Data Control treatment system and for receiving instruction.
After optimizing like this, adopt servomotor by screw nut driven, and then crystallization control device moves, can control the very short displacement of realization, ensure to control accurately and reliable.
The invention also discloses a kind of metal electroslag refining furnace electrode centering method, it is characterized in that, adopt metal electroslag refining furnace as above, when centering, first detect electrode distance size by three position sensors, converse the position coordinates of electrode in the horizontal plane coordinate system taking crystallizer center as initial point, then this position is decomposed into along the distance component of two actuating unit application of force directions to the distance of the origin of coordinates, then according to two actuating units of these two distance component controls, crystallizer is promoted to respective distance, realize centering and adjust.
In sum, the present invention has can facilitate centering, reduces crystallizer failure phenomenon, extends the crystallizer advantage in service life.
Brief description of the drawings
Fig. 1 is the structural representation of metal electroslag refining furnace of the present invention.
Fig. 2 is the top view of independent position sensor position in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
When concrete enforcement: as depicted in figs. 1 and 2, a kind of metal electroslag refining furnace, comprises that entirety is the crystallizer 1 of stove shape, is positioned at the pillar 2 of crystallizer 1 one sides, pillar 2 sides are provided with transverse arm 3, on transverse arm 3, just crystallizer 1 are provided with to the electrode 4 that extends down into crystallizer; Also include the Data Control treatment system 8 for electrical control; Also comprise the testing agency for detection of electrode 4 positions, and the actuating unit 7 moving horizontally for promoting crystallizer, described testing agency is connected with Data Control treatment system 8 and for transmitting detection data, and described actuating unit is connected with Data Control treatment system and for receiving instruction. Described testing agency comprises that three are fixed on the position sensor 5 of crystallizer upper surface along crystallizer axial line arranged in concentric circles and annular evenly arranging, and position sensor 5 is for detection of electrode position. Described crystallizer 1 is arranged on base 6, and base 6 lower surfaces are arranged on movably by universal wheel on the support ground of a level, and described actuating unit 7 is two covers, and two cover actuating units 7 are mutually vertical to the application of force direction of crystallizer 1. When concrete enforcement, described actuating unit 7 can adopt following structure, comprise that is fixed on the ground servomotor of support, servomotor output shaft level is just to crystallizer base and be fixedly connected with a screw mandrel, wire rod thread is engaged in a nut being fixed on crystallizer base, and servomotor can drive screw mandrel rotation and promote crystallizer base by nut and move. Wherein, servomotor is connected with Data Control treatment system and for receiving instruction.
In the present invention, be provided with testing agency for detection of electrode position, then judge whether disalignment and calculate offset distance of electrode position, then control actuating unit and promote crystallizer and move, make electrode centering again. The present invention has adopted electrode to maintain static, and promotes the mode centering that crystallizer moves, and the whole-process automatic collection of centering and control, realized centering automation. The position sensor adopting in testing agency, it can be approach switch, the devices such as photoelectric sensor, like this, three position sensors of setting, can facilitate the distance of detecting electrode, in the time that equating, electrode distance can judge centering, in the time that the electrode distance detecting does not wait, can be judged as disalignment, and can calculate fast the distance in electrode skew crystallizer axle center. Data Control treatment system calculates after deviation electrode, can be converted into the distance displacement on both direction, and then controls two cover actuating unit actions, and mobile crystallizer position makes electrode centering again exactly. Actuating unit adopts servomotor by screw nut driven, and then crystallization control device moves, and can control the very short displacement of realization, ensures to control accurately and reliable.
A kind of metal electroslag refining furnace electrode centering method, adopt metal electroslag refining furnace as above, when centering, first detect electrode distance size by three position sensors, converse the position coordinates of electrode in the horizontal plane coordinate system taking crystallizer center as initial point, then this position is decomposed into along the distance component of two actuating unit application of force directions to the distance of the origin of coordinates, then according to two actuating units of these two distance component controls, crystallizer is promoted to respective distance, realize centering and adjust.
When concrete enforcement, can also adopt the second centering method, in second method, in the time that three position sensors are set, two position sensors wherein need to be arranged on the parallel lines with an actuating unit application of force direction, then when centering, first driving crystallizer to move to the detection data of two position sensors of this correspondence by this actuating unit application of force stops when identical, and then adopt the 3rd position sensor to detect and electrode distance size, calculate distance poor of this numerical value and the 3rd position sensor to a three round heart in position sensor place, drive crystallizer to move respective distances according to second actuating unit of this difference control, realizing centering adjusts.
Above-mentioned the first centering method, can control two actuating units moves simultaneously, carry out consuming time shortlyer, complete and control comparatively fast, but Data Control treatment system self performance is had relatively high expectations, second method, two actuating units are divided into two steps actions, carry out consuming time relatively longly, complete control slower, but lower to the requirement of Data Control treatment system self performance, equipment cost is lower. After two kinds of methods are finished, all can lean on closed loop to detect feedback adjusting, until finally complete centering.
Claims (4)
1. a metal electroslag refining furnace, comprises that entirety is the crystallizer of stove shape, is positioned at the pillar of crystallizer one side, and pillar top is provided with transverse arm, on transverse arm, just crystallizer is provided with to the electrode that extends down into crystallizer; Also include the Data Control treatment system for electrical control; It is characterized in that, also comprise the testing agency for detection of electrode position, and the actuating unit moving horizontally for promoting crystallizer, described testing agency is connected with Data Control treatment system and for transmitting detection data, and described actuating unit is connected with Data Control treatment system and for receiving instruction; Described testing agency comprises that three are fixed on the position sensor of crystallizer upper surface along crystallizer axial line arranged in concentric circles and annular evenly arranging, three position sensors that arrange, for detection of the distance of electrode, in the time that equating, electrode distance judges centering, in the time that the electrode distance detecting does not wait, be judged as disalignment, and calculate electrode offset distance.
2. metal electroslag refining furnace as claimed in claim 1, it is characterized in that, described crystallizer is arranged on base, base lower surface is arranged on movably by universal wheel on the support ground of a level, described actuating unit is two covers, and two cover actuating units are mutually vertical to the application of force direction of crystallizer.
3. metal electroslag refining furnace as claimed in claim 2, it is characterized in that, described actuating unit comprises that is fixed on the ground servomotor of support, servomotor output shaft level is just to crystallizer base and be fixedly connected with a screw mandrel, wire rod thread is engaged in a nut being fixed on crystallizer base, and servomotor can drive screw mandrel rotation and promote crystallizer base by nut and move.
4. a metal electroslag refining furnace electrode centering method, is characterized in that, has adopted metal electroslag refining furnace as claimed in claim 3 to carry out centering.
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| CN201410316405.6A CN104046791B (en) | 2014-07-04 | 2014-07-04 | A kind of metal electroslag refining furnace and electrode centering method thereof |
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| CN201410316405.6A CN104046791B (en) | 2014-07-04 | 2014-07-04 | A kind of metal electroslag refining furnace and electrode centering method thereof |
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| CN109897937A (en) * | 2017-12-07 | 2019-06-18 | 江苏天工工具有限公司 | Process the electroslag remelting mechanism of high-speed steel |
| CN110564974A (en) * | 2019-08-27 | 2019-12-13 | 仇凯 | Electroslag remelting furnace |
| CN111647756B (en) * | 2020-06-22 | 2021-10-15 | 北京钢研高纳科技股份有限公司 | False electrode for electroslag remelting furnace and self-adaptive centering method of false electrode for electroslag remelting furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302260Y (en) * | 1997-06-25 | 1998-12-30 | 北京科技大学 | Direct current electric-arc-slag heating ladle furnace computer controller |
| CN1233385A (en) * | 1996-08-30 | 1999-10-27 | 梅尔特兰公司 | Rotating-translational drive mechanism for positioning devices in a melter |
| CN201459213U (en) * | 2009-09-03 | 2010-05-12 | 重庆文理学院 | Electroslag remelting bottom water tank device capable of adjusting displacement automatically |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233385A (en) * | 1996-08-30 | 1999-10-27 | 梅尔特兰公司 | Rotating-translational drive mechanism for positioning devices in a melter |
| CN2302260Y (en) * | 1997-06-25 | 1998-12-30 | 北京科技大学 | Direct current electric-arc-slag heating ladle furnace computer controller |
| CN201459213U (en) * | 2009-09-03 | 2010-05-12 | 重庆文理学院 | Electroslag remelting bottom water tank device capable of adjusting displacement automatically |
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Effective date of registration: 20210308 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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