CN104313342A - Metal electroslag remelting and smelting equipment - Google Patents
Metal electroslag remelting and smelting equipment Download PDFInfo
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- CN104313342A CN104313342A CN201410596239.XA CN201410596239A CN104313342A CN 104313342 A CN104313342 A CN 104313342A CN 201410596239 A CN201410596239 A CN 201410596239A CN 104313342 A CN104313342 A CN 104313342A
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Abstract
The invention discloses metal electroslag remelting and smelting equipment comprising a crystallizer and an upright post, wherein the whole crystallizer is furnace-shaped and is located in a crystallizer mounting groove; and the upright post is located at one side of the crystallizer mounting groove, a horizontal cantilever is arranged above the upright post and is provided with an electrode dead against the crystallizer by virtue of an electrode holder, and the electrode downwards extends to enter the crystallizer. The metal electroslag remelting and smelting equipment is characterized by also comprising an automatic auxiliary material feeding device located at the side of the crystallizer, wherein the automatic auxiliary material feeding device comprises a discharging part structure and a power control part structure. The metal electroslag remelting and smelting equipment has the advantages that the structure is simple, auxiliary materials can be automatically fed during smelting, the auxiliary material feeding control process is stable and reliable, and the smelting effect is good.
Description
Technical field
The present invention relates to a kind of Metal smelting technology, particularly relate to a kind of metal electric slag refusion and smelting equipment.
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 terminal clamp the electrode 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 terminal clamp to clamp cylindrical electrode, and allow electrode, 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 away from electroslag smelting terminal clamp, be energized subsequently to electrode, in galvanization, electrode 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, the increase of steel oxygen level, plasticity, the toughness of steel reduce, and another oxide compound also makes the reduction such as wear resistance, erosion resistance of steel.Therefore the auxiliary material adding trace in esr process at regular time and quantity continuously has vital role as aluminum shot etc. carries out diffusive deoxidation, can suppress the oxygen level in metal pool as it, thus the final oxygen level reduced in steel.Steel ingot pore, loose and segregation generation can be reduced simultaneously.Add the scaling loss that appropriate auxiliary material also can reduce silicon in steel, the spot segregation of favourable minimizing steel.And effectively make the sulphur content of steel reduce, improve the purity etc. of steel.At present, in electroslag smelting process, auxiliary material adds multiplex artificial iron spoon interpolation, working temperature is high, and dust is many, is harmful to health, and it is reinforced uneven, discontinuous or feeding quantity is wayward, often cause electroslag smelting product qualified rate low, and special electroslag smelting auxiliary material feeding device is also little, thus good effect be can not reach to the deoxidation etc. that process aspect specifies, composition and the smelting quality of ESR ingot greatly affected.
China's number of patent application 201320175064.6 was once disclosed a kind of electroslag furnace aluminum shot charging machine controller, belonged to electroslag furnace and to feed in raw material technical field of automatic control.Technical scheme is: feed often leaves node strings and is connected on feed vibration electro-magnet loop, discharge often leaves node strings and is connected on discharge vibration electro-magnet loop, cylinder is often opened node strings and is connected on discharging cylinder loop, and feed often leaves node coil, discharge and often opens the gentle cylinder of node coil and often open node coil and be connected with programmable logic controller respectively.So this patent is only disclose a kind of technology controlled aluminum shot discharge quantity, still cannot solve how to realize automatic blanking by machinery, and then the problem of all disadvantageous effects avoiding manual operation to bring.
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 a kind of structure simple, metallurgical effect is good, can realize the metal electric slag refusion and smelting equipment automatically adding auxiliary material when smelting.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of metal electric slag refusion and smelting equipment, comprise overall crystallizer in oven-like, crystallizer is positioned at a crystallizer mounting groove, also comprise the column being positioned at crystallizer mounting groove side, horizontal cantilever is provided with above column, horizontal cantilever is just provided with by terminal clamp the electrode extending down into crystallizer to crystallizer, it is characterized in that, also comprise the auxiliary material automatic adding device being positioned at crystallizer side, described auxiliary material automatic adding device comprises discharge portion structure and force control section separation structure.
Be provided with auxiliary material automatic adding device in the present invention, when may be used for smelting, the automatic interpolation of the auxiliary material such as aluminum shot, can reduce the scaling loss of silicon in steel, the spot segregation of favourable minimizing steel after adding appropriate auxiliary material.And effectively make the sulphur content of steel reduce, improve the purity etc. of steel, make metallurgical effect better.
As optimization, described discharge portion structure comprises the frame being arranged at crystallizer side, frame upper end edge horizontal direction is provided with a pair belt pulley, and belt pulley upper ring cap is provided with conveying belt, and conveying belt one end is positioned at above crystallizer and the other end is arranged away from crystallizer direction.
Like this, the mode of belt wheel case conveying belt is adopted to add auxiliary material, the auxiliary material that can be added by needs before smelting proportionally size is laid on the conveyor belt equably, feeding intake of auxiliary material is realized by controlling conveying belt rotation during smelting, complete electroslag smelting self-feeding, structure is simple and make reinforced process continuous uniform, ensures metallurgical effect.
Further, described frame comprises the base plate being horizontally placed on bottom, be positioned horizontally in the top board at top, support and connection become the support of inverted trapezoidal in base plate and its monnolithic case of chien shih of top board, top board extends support formation elongated end towards the side of crystallizer and arranges a belt pulley at elongated end, and top board opposite side arranges another belt pulley.
It is simple that such frame has structure, and support reliable and stable advantage, the belt pulley of one end extends the interpolation that frame arranges convenient auxiliary material.
Further, base plate corner location is also to being arranged with universal wheel.Like this, facilitate mobile universal wheel, frame is pushed into correct position and feeds in raw material.
Further, described top board elongated end bottom has the extended loading board of forward downward, and loading board upper surface is just provided with intake chute to conveying belt.Like this, further ensure reinforced accuracy, auxiliary material can be made to make an addition to crystallizer medium position, be beneficial to auxiliary material and fully participate in reaction, improve metallurgical effect better.
As optimization, described force control section separation structure comprises horizontal cantilever hoisting appliance and coordinated signals mechanism, and coordinated signals mechanism is connected to the lifting coordinated signals discharge portion structure discharge also by horizontal cantilever between horizontal cantilever and discharge portion structure.
Like this, in smelting process, horizontal cantilever can be controlled slowly decline, electrode lower end is made progressively to extend into crystallizer lower inside position, the movement of such electrode causes gradually changing of electric current, improve metallurgical effect, interlock adds auxiliary material step by step in this process simultaneously, just drastically increases Metal smelting effect.
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 is connected with the screw mandrel being vertically juxtaposed on column side and screw mandrel can be driven to rotate, and screw mandrel 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.
Further, described coordinated signals mechanism, comprise the first traction rope and the second traction rope, first traction rope one end is fixed on horizontal cantilever, the other end extends solderless wrapped connection on the conveyor belt along conveying belt lower surface toward away from crystallizer direction after walking around the conveying belt of one end above crystallizer downwards, described second traction rope one end is positioned at crystallizer side faced by frame and fixes and is connected with a balancing weight downwards, after the second traction rope the other end upwards walks around a guide deflection sheave be arranged on crystallizer side outer wall faced by frame frame, upwards walk around the conveying belt of one end above crystallizer and extend solderless wrapped connection on the conveyor belt along conveying belt upper surface toward away from crystallizer direction.
Like this, when horizontal cantilever maintains static, on the second traction rope, the gravity of balancing weight is offseted by the pulling force of the first traction rope by conveying belt, and conveying belt maintains static.When in smelting process, when horizontal cantilever moves down, first traction rope moves down gradually, and the second traction rope draws conveying belt upper surface gradually and moves toward crystallizer direction under configuration block effect, and then is added in crystallizer by the auxiliary material that conveying belt has laid in advance.Have structure simple, it is convenient to control, and interlock effect such as can be guaranteed at the advantage.
In sum, it is simple that the present invention has structure, can realize automatically adding auxiliary material when smelting, and it is reliable and stable that auxiliary material adds control process, makes the advantages such as metallurgical effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment for the present invention structure.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
During concrete enforcement: as shown in Figure 1, a kind of metal electric slag refusion and smelting equipment, comprise overall crystallizer 14 in oven-like, crystallizer 14 is positioned at a crystallizer mounting groove, also comprise the column 5 being positioned at crystallizer mounting groove side, horizontal cantilever 4 is provided with above column 5, horizontal cantilever 4 is just provided with by terminal clamp the electrode 7 extending down into crystallizer to crystallizer 14, wherein, also comprise the auxiliary material automatic adding device being positioned at crystallizer side, described auxiliary material automatic adding device comprises discharge portion structure and force control section separation structure.
Wherein, described discharge portion structure comprises the frame 12 being arranged at crystallizer side, frame 12 upper end edge horizontal direction is provided with a pair belt pulley 8, and belt pulley upper ring cap is provided with conveying belt 9, and conveying belt 9 one end is positioned at above crystallizer 14 and the other end is arranged away from crystallizer 14 direction.Like this, rotating and realize feeding intake of auxiliary material, completing electroslag smelting self-feeding during smelting by controlling conveying belt, structure is simple and make reinforced process continuous uniform, ensures metallurgical effect.
Wherein, described frame 12 comprises the base plate 10 being horizontally placed on bottom, be positioned horizontally in the top board 11 at top, support and connection become the support of inverted trapezoidal in base plate 10 and its monnolithic case of chien shih of top board 11, top board 11 extends support formation elongated end towards the side of crystallizer 14 and arranges a belt pulley at elongated end, and top board 11 opposite side arranges another belt pulley.It is simple that such frame has structure, and support reliable and stable advantage, the belt pulley of one end extends the interpolation that frame arranges convenient auxiliary material.
Wherein, base plate 10 corner location is also to being arranged with universal wheel 13.Like this, facilitate mobile universal wheel, frame is pushed into correct position and feeds in raw material.
Wherein, described top board 11 elongated end bottom has the extended loading board of forward downward 15, and loading board 15 upper surface is just provided with intake chute to conveying belt.Like this, further ensure reinforced accuracy, auxiliary material can be made to make an addition to crystallizer medium position, be beneficial to auxiliary material and fully participate in reaction, improve metallurgical effect better.
Wherein, described force control section separation structure comprises horizontal cantilever hoisting appliance and coordinated signals mechanism, and coordinated signals mechanism is connected to the lifting coordinated signals discharge portion structure discharge also by horizontal cantilever between horizontal cantilever and discharge portion structure.Like this, in smelting process, horizontal cantilever can be controlled slowly decline, electrode lower end is made progressively to extend into crystallizer lower inside position, the movement of such electrode causes gradually changing of electric current, improve metallurgical effect, interlock adds auxiliary material step by step in this process simultaneously, just drastically increases Metal smelting effect.
Wherein, described horizontal cantilever hoisting appliance comprises described horizontal cantilever 4, horizontal cantilever 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 be positioned on the base plate 1 of column bottom, lifting motor output terminal is connected with the screw mandrel 3 being vertically juxtaposed on column side 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 4 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, comprise the first traction rope 6 and the second traction rope 18, first traction rope 6 one end is fixed on horizontal cantilever 4, solderless wrapped connection is extended along conveying belt 9 lower surface on conveying belt 9 toward away from crystallizer 14 direction after the other end walks around the conveying belt of one end above crystallizer 14 downwards, described second traction rope 18 one end is positioned at crystallizer 14 side faced by frame and fixes and is connected with a balancing weight 16 downwards, after second traction rope 18 the other end upwards walks around a guide deflection sheave 17 be arranged on crystallizer side outer wall faced by frame frame, upwards walk around the conveying belt of one end above crystallizer 14 and extend solderless wrapped connection along conveying belt 14 upper surface on conveying belt 14 toward away from crystallizer direction.Like this, when horizontal cantilever maintains static, on the second traction rope, the gravity of balancing weight is offseted by the pulling force of the first traction rope by conveying belt, and conveying belt maintains static.When in smelting process, when horizontal cantilever moves down, first traction rope moves down gradually, and the second traction rope draws conveying belt upper surface gradually and moves toward crystallizer direction under configuration block effect, and then is added in crystallizer by the auxiliary material that conveying belt has laid in advance.Have structure simple, it is convenient to control, and interlock effect such as can be guaranteed at the advantage.
During aforesaid device work, first metal electroslag is added crystallizer, electrode to be inserted in crystallizer and and metal electroslag upper contact, by the auxiliary material needing to add first proportionally size lay equably on the conveyor belt, frame is pushed to intake chute lower end and exports just to crystallizer central position; Then starting electrode starts to smelt, after for some time, start lifting motor work, move horizontal cantilever by screw nut driven subband evenly to move down lentamente, and then make conveying belt lose the tractive force of the first traction rope, under balancing weight action of gravity, second traction rope lower end moves down, and then conveying belt upper surface is at the uniform velocity moved toward crystallizer direction, material on conveying belt slides in the middle part of crystallizer slowly through the intake chute on loading board continuously, until horizontal cantilever downward storke is covered, complete auxiliary material and add action.During smelting, horizontal cantilever can repeat upper and lower stroke, and auxiliary material is added by artificial continuing in conveying belt one end, can horizontal cantilever each descending time realize the continuous interpolation of auxiliary material.Like this, rotating and realize feeding intake of auxiliary material, completing electroslag smelting self-feeding during smelting by controlling conveying belt, structure is simple and make reinforced process continuous uniform, ensures metallurgical effect.
Wherein, when specifically implementing, two guide deflection sheave spacing X are more than or equal to primary smelting stroke Y(and horizontal cantilever Bottom Runby), balancing weight can be more than or equal to above-mentioned Y by descending stroke Z; Hang the frictional force f that weight gravity G is greater than conveying belt and guide deflection sheave.Above-mentioned working process can be completed smoothly.
Be provided with auxiliary material automatic adding device in the present invention, when may be used for smelting, the automatic interpolation of the auxiliary material such as aluminum shot, can reduce the scaling loss of silicon in steel, the spot segregation of favourable minimizing steel after adding appropriate auxiliary material.And effectively make the sulphur content of steel reduce, improve the purity etc. of steel, make metallurgical effect better.Compared with the existing technology comparatively, the design repeatedly can recycle with the lifting of cantilever, solves and achieves the automatization that in electroslag smelting, auxiliary material is reinforced, effectively improves electroslag smelting automatization, have simple and reasonable, save energy, simple to operate, safe and reliable, easy maintenance, the advantages such as maintenance cost is low, long service life, make product qualified rate increase substantially and reach 98%.Be specially adapted to widely use in electroslag smelting industry.
Claims (8)
1. a metal electric slag refusion and smelting equipment, comprise overall crystallizer in oven-like, crystallizer is positioned at a crystallizer mounting groove, also comprise the column being positioned at crystallizer mounting groove side, horizontal cantilever is provided with above column, horizontal cantilever is just provided with by terminal clamp the electrode extending down into crystallizer to crystallizer, it is characterized in that, also comprise the auxiliary material automatic adding device being positioned at crystallizer side, described auxiliary material automatic adding device comprises discharge portion structure and force control section separation structure.
2. metal electric slag refusion and smelting equipment as claimed in claim 1, it is characterized in that, described discharge portion structure comprises the frame being arranged at crystallizer side, frame upper end edge horizontal direction is provided with a pair belt pulley, belt pulley upper ring cap is provided with conveying belt, and conveying belt one end is positioned at above crystallizer and the other end is arranged away from crystallizer direction.
3. metal electric slag refusion and smelting equipment as claimed in claim 2, it is characterized in that, described frame comprises the base plate being horizontally placed on bottom, be positioned horizontally in the top board at top, support and connection become the support of inverted trapezoidal in base plate and its monnolithic case of chien shih of top board, top board extends support formation elongated end towards the side of crystallizer and arranges a belt pulley at elongated end, and top board opposite side arranges another belt pulley.
4. metal electric slag refusion and smelting equipment as claimed in claim 3, it is characterized in that, base plate corner location is also to being arranged with universal wheel.
5. metal electric slag refusion and smelting equipment as claimed in claim 3, it is characterized in that, described top board elongated end bottom has the extended loading board of forward downward, and loading board upper surface is just provided with intake chute to conveying belt.
6. metal electric slag refusion and smelting equipment as claimed in claim 2, it is characterized in that, described force control section separation structure comprises horizontal cantilever hoisting appliance and coordinated signals mechanism, and coordinated signals mechanism is connected to the lifting coordinated signals discharge portion structure discharge also by horizontal cantilever between horizontal cantilever and discharge portion structure.
7. metal electric slag refusion and smelting equipment as claimed in claim 6, 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 is connected with the screw mandrel being vertically juxtaposed on column side and screw mandrel can be driven to rotate, and screw mandrel upper end and a nut screw connection be fixed on horizontal cantilever form screw pair.
8. metal electric slag refusion and smelting equipment as claimed in claim 6, it is characterized in that, described coordinated signals mechanism, comprise the first traction rope and the second traction rope, first traction rope one end is fixed on horizontal cantilever, the other end extends solderless wrapped connection on the conveyor belt along conveying belt lower surface toward away from crystallizer direction after walking around the conveying belt of one end above crystallizer downwards, described second traction rope one end is positioned at crystallizer side faced by frame and fixes and is connected with a balancing weight downwards, after the second traction rope the other end upwards walks around a guide deflection sheave be arranged on crystallizer side outer wall faced by frame frame, upwards walk around the conveying belt of one end above crystallizer and extend solderless wrapped connection on the conveyor belt along conveying belt upper surface toward away from crystallizer direction.
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| CN201410596239.XA CN104313342B (en) | 2014-10-30 | 2014-10-30 | A kind of metal electric slag refusion and smelting equipment |
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| CN201410596239.XA CN104313342B (en) | 2014-10-30 | 2014-10-30 | A kind of metal electric slag refusion and smelting equipment |
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| CN104313342B CN104313342B (en) | 2016-05-11 |
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Cited By (3)
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| CN105861849A (en) * | 2016-06-13 | 2016-08-17 | 重庆钢铁(集团)有限责任公司 | Electroslag remelting furnace |
| CN106435092A (en) * | 2016-11-02 | 2017-02-22 | 四川六合锻造股份有限公司 | Aluminum powder adding method for electroslag remelting process |
| CN113210881A (en) * | 2021-03-16 | 2021-08-06 | 南京鑫东金属材料有限公司 | Laser cutting is with having waste recycling's equipment |
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| CN203112903U (en) * | 2013-03-22 | 2013-08-07 | 安丘市明达重工机械制造有限公司 | Lifting device for current conducting arm of electroslag remelting furnace |
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| CN105861849A (en) * | 2016-06-13 | 2016-08-17 | 重庆钢铁(集团)有限责任公司 | Electroslag remelting furnace |
| CN106435092A (en) * | 2016-11-02 | 2017-02-22 | 四川六合锻造股份有限公司 | Aluminum powder adding method for electroslag remelting process |
| CN113210881A (en) * | 2021-03-16 | 2021-08-06 | 南京鑫东金属材料有限公司 | Laser cutting is with having waste recycling's equipment |
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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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