CN104831082B - A kind of electroslag smelting electric furnace system - Google Patents
A kind of electroslag smelting electric furnace system Download PDFInfo
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- CN104831082B CN104831082B CN201510273257.9A CN201510273257A CN104831082B CN 104831082 B CN104831082 B CN 104831082B CN 201510273257 A CN201510273257 A CN 201510273257A CN 104831082 B CN104831082 B CN 104831082B
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Abstract
The invention discloses a kind of electroslag smelting electric furnace system, including the overall crystallizer in oven-like, electrode assembly positioned at crystallizer side, wherein crystallizer lower end is provided with the bottom water tank of cooling, electrode assembly includes pillar, movable sleeve is provided with transverse arm on pillar, electrode is installed on transverse arm, it is characterized in that, the electrode assembly is two sets and is correspondingly arranged at crystallizer both sides, also include electrode preheating device, electrode preheating device has vertically arranged and upper end open a heating chamber for being capable of the insertion of power pole lower end, also there is the heater that can be used in the heated by electrodes of insertion.The present invention has preheating function, and efficiency is high, and security is good, and metallurgical effect is excellent, has the advantages that safe efficient energy-conservation, improves electroslag ingot smelting quality；The very convenient maintenance of bottom water tank simultaneously is changed, and is reduced maintenance cost, is improved cooling effectiveness.
Description
Technical field
The present invention relates to a kind of electroslag smelting stove, more particularly to a kind of electroslag smelting electric furnace system.
Background technology
Electroslag smelting stove is a kind of equipment of electric slag refusion and smelting.It is in oven-like that its structure of electroslag smelting stove, which mainly includes overall,
Crystallizer, the electrode assembly positioned at crystallizer side, wherein crystallizer lower end is provided with the bottom water tank of cooling, electrode assembly
Including pillar, movable sleeve is provided with the electrode just installed on transverse arm, transverse arm to crystallizer and extend down into crystallizer, electricity on pillar
The fixed part and hypomere that pole includes epimere and is used to be connected with transverse arm are used for the Smelting Part being dissolved into when smelting in electroslag；Also wrap
Include for controlling elevating mechanism that transverse arm lifts along pillar and rotating mechanism for controlling transverse arm to be rotated around column axle center.
Set during electroslag smelting above water mold and fill slag bath to be melted, clamped using terminal clamp
Cylindrical electrode, and allow electrode, slag bath, metal bath, steel ingot, bottom water tank to form electric current time by short net wire and transformer
Road.When carrying out electroslag smelting, end of the electrode away from electroslag smelting terminal clamp is inserted in slag first, then to electrode
It is powered, in galvanization, electrode and slag bath release Joule heat, and the regulus in slag bath is melted, molten metal convergence
Into liquid, through slag bath, fall into and metal bath is formed in crystallizer, and acted on simultaneously by water cooling, be quickly solidified to form steel ingot.Steel
Before ingot solidification, metal bath and slag bath in its top play insulation and feeding, it is ensured that the compactness of steel ingot.Smelted
One layer of thin skull is formed with Cheng Zhong, crystallizer inwall, not only makes surface of steel ingot bright and clean, insulation and heat-blocking action is also played, makes more
Many heats are conducive to the crystallographic orientation of steel ingot from bottom to top to lower conduction.Based on above reason, produced by electroslag smelting
The ingot quality that goes out is good, performance is excellent, and plasticity and impact flexibility enhancing under low temperature, room temperature and the high temperature of steel alloy, steel are used
Life, therefore electroslag smelting technique is widely popularized uses in this industry.
But, there is following defect in this existing electroslag smelting stove：1st, electroslag smelting is usually the process that batch is smelted, but
Existing electroslag smelting stove, during single set system work, needs to take, the electroslag before smelting loads, electrode dress except smelting process
Folder preparation etc. is required to take so that overall smelting production efficiency is more low.2nd, electrode is inserted after electroslag again in smelting process
Be powered heating, and electrode blank replaces and there are problems that huge between stylish blank and molten bath, and new electrode is located if do not done
Reason be put into blank termination behind molten bath burst because steep temperature rise is likely to occur or chip off-falling phenomenon；Fall into the crystallizer of lower section and melt
Change in molten steel, gently then influence production, bring operation dangerous to electroslag smelting production.More serious influence is that new electrode blank enters
Enter behind molten bath, because blank termination and molten bath excessive temperature differentials inevitably caused by crystallizer bath temperature reduce suddenly, break
Normal smelting environment.So that ESR ingot occur strangling shell, slag runner, composition it is uneven, containing the mass defect such as miscellaneous, had a strong impact on electroslag
Ingot smelting quality.3rd, in addition, the bottom cisten mechanism of existing crystallizer, is also unfavorable for the defect of maintenance in the presence of dismounting inconvenience.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：A kind of smelt how is provided to imitate
Rate is high, can have preheating function and make its security good, the excellent electroslag smelting electric furnace system of metallurgical effect makes it have peace
Entirely, energy-efficient advantage, does not increase under the premise of electrode blank alt time, can reduce and avoid electroslag smelting process electrode billet
The temperature difference is on smelting the destruction and influence of environment, improving electroslag ingot smelting quality during material alternating.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of electroslag smelting electric furnace system, including overall crystallizer, the electrode assembly positioned at crystallizer side in oven-like,
Wherein crystallizer lower end is provided with the bottom water tank of cooling, and electrode assembly includes movable sleeve on pillar, pillar and is provided with transverse arm, transverse arm
On just crystallizer installed extending down into the electrode of crystallizer, electrode includes the fixed part that epimere is used to be connected with transverse arm
The Smelting Part in electroslag is dissolved into when being used for and smelting with hypomere, electrode assembly also includes being used to control what transverse arm was lifted along pillar
Elevating mechanism and the rotating mechanism for controlling transverse arm to be rotated around column axle center；Characterized in that, the electrode assembly is two
Cover and be correspondingly arranged at crystallizer both sides, in addition to electrode preheating device, electrode preheating device have one it is vertically arranged and on
End opening be capable of power pole lower end insertion heating chamber, also with can be used in the heating to the heated by electrodes of insertion dress
Put.
So, two sets electrode assemblies are provided with the present invention and are total to same crystallizer, while there is provided electrode preheating device,
So when a set of electrode assembly is being smelted in use, another set of electrode assembly can not only carry out installing the work such as electrode, also
Mounted electrode can be inserted into electrode preheating device, mounted electrode is preheated, in coil high-frequency electromagnetic
Under the sensing of field, the electrode blank termination fast heating of burner hearth is stretched into, quick heating, thermal loss is small, temperature homogeneity is high.Work as smelting
Refine the Electrode used to finish and remove, feed and arranged after crystallizer again, preheated electrode can be moved into
Smelted in crystallizer.So circulation.Both the time is saved, efficiency is improved, while carrying out remelting in metal electrode blank
Electrode blank termination is preheated before, can prevent metal electrode enter slag after, electrode blank termination steep temperature rise and
Occur burst or chip off-falling phenomenon；Enter prevented also from electrode blank behind molten bath, ESR ingot is gone out because bath temperature rapid drawdown is low
Now strangle shell, slag runner, composition it is uneven, containing the mass defect such as miscellaneous.Therefore improve security and metallurgical effect.
As optimization, the electrode preheating device is one, and two electrodes are in respective transverse arm in two sets of electrode assemblies
On rotating path where circle with two intersecting intersection points, crystallizer and the electrode preheating device is each arranged in two friendships
Point position.
After being so laid out, two electrodes can share an electrode preheating device, dexterously be saved using layout structure
Equipment cost.
As optimization, the electrode preheating device includes housing, and enclosure interior is provided with refractory insulating material and at middle part
Form heating chamber, be embedded with the refractory insulating material around heating chamber lift spiral setting induction coil formation plus
Thermal.
So, refractory insulating material can be formed good protective layer, increased the service life with thermal insulation and insulation.Heating dress
The non-contact thermal using induction coil is put, under the sensing of coil electromagnetic field of high frequency, makes the electrode billet for stretching into heating chamber
Expect termination fast heating, quick heating, thermal loss is small, temperature homogeneity is high, can have good heating effect and efficiency, together
When induction coil be laid in fireproof high-temperature resistant insulating materials protective layer and avoid and electrode contact, damaged to prevent practical operation is improper
The clamping of electrode blank termination not just or telescopic location is improper, makes it collide or contact with induction coil in bad induction coil, such as use
The problems such as arc damages induction coil is beaten, security hidden trouble present in its technology is solved.It, which can be used for a long time, is not required to change,
Service life is long, safe efficient, energy-conservation.
Further, it is additionally provided with and coil in induction coil inner hollow formation coil cooling-water duct, housing side
Coil cooling water inlet and coil coolant outlet that the two ends of cooling-water duct short transverse are connected.
So, coil prevents that coil own temperature is too high using cooling water cooling, improves to coil protecting effect, extension
Service life.Coil cooling-water duct can also connect crystallizer bottom water tank cooling recirculation system in, do not increase extra
Cool down facility cost.
As optimization, protective gas passage is additionally provided with the housing, protective gas passage the inner gas outlet, which is located at, to be added
Hot cavity bottom, outer end air inlet is used for external protection source of the gas.
So, inert gas shielding can be provided during preheating, it is to avoid electrode blank termination oxygen present in warm
Change phenomenon, prevent the scaling loss of active element, prevent the oxygen content in steel from increasing, it is ensured that metallurgical effect.
Further, the protective gas passage is the annular channel structure set higher than heating chamber inner bottom surface, described
Gas outlet is circumferentially equally distributed multiple and be circumferentially communicated to heating obliquely along identical incline direction around circular passage
Cavity bottom.
So, can cause after venthole outlet can the upward annularly flow of side-lower out of protection device, can be more preferable
Air in script furnace chamber is expelled from furnace chamber inner space by ground, improves protecting effect,
As optimization, the housing is in integrally drum-shaped, and heating chamber is the cylinder being coaxially disposed, and case top lid is set
It is fixed with the middle part of the cap of matching, cap and is provided with the via coaxial with heating chamber, via diameter is more than electrode external diameter and small
In heating chamber diameter.
So, housing and heating chamber cross section are circle, can save the device space, improve the efficiency of heating surface, are set
Cap can limit the position of electrode insertion, prevent electrode and heating chamber inwall from contacting and produce destruction, while cap can
It is excessive to limit protective gas, gas shield effect is improved, is improved to electrode protection effect.In addition, cap is detachable
Lid, which is set, to be fixedly installed, and can facilitate the installation settings and repair and maintenance of housing interior structure.
As optimization, temperature sensor is additionally provided with positioned at induction coil top position in the heating chamber, temperature is passed
Sensor is non-contact temperature sensor and is connected with an alarm outside housing.
So, can accurately measuring electrode blank termination preheat when actual temperature.So that electrode blank termination reaches ten
Divide good pre-heat effect.When detecting temperature overheating, alarm can be sent by alarm, prevent overheat, improved to electrode
Protecting effect.Using non-contact temperature sensor avoid with electrode contact and cause destruction, alarm can use buzzer
Or warning lamp.
As optimization, the housing bottom is additionally provided with cooling water chamber, and cooling water chamber side is provided with inlet channel,
Opposite side is provided with outlet conduit.So, cooling water chamber can further cooling protection electrode preheating device, extension fixture longevity
Life.
As optimization, the bottom cisten mechanism of crystallizer lower end, including casing, body side are provided with and communicated with water inlet pipe and gone out
Water pipe, casing upper end open and at opening to the horizontal-extending bottom water tank panel for being formed with rectangle frame plate structure of surrounding, bottom water
Case panel upper surface correspondence, which is equipped with to cover again above the rubber gasket of rectangle frame plate structure, rubber gasket, is provided with flat board
The copper coin of shape；Be additionally provided with above copper coin be fixed mechanism be used for realize copper coin and rubber gasket are fixed, institute
State and be fixed mechanism and include a compression connector, compress connector lower end and be connected with casing and load, compress connector
Upper end correspondence rubber gasket top position has correspondence on the installing plate of the horizontal rectangular frame structure of a matching, installing plate
Rubber gasket is vertically provided with a circle screwed hole, screwed hole and hold-down bolt is connected with, and hold-down bolt lower end is connected to
Realize and copper coin and rubber gasket are fixed in copper coin upper surface.
So, using mechanism is fixed, from top, realization is fixed to copper coin, and existing use turnbuckle
Realize that fixed frame mode is compared through copper coin, rubber gasket and bottom water tank panel, will not produce because bolt is through more
The problem of causing to be difficult to dismounting after the layer deformation of member, it is easy to remove and repair.Copper coin surface is without setting excessive high accuracy will simultaneously
The bolt hole asked, reduce to component set precision requirement, copper coin be whole board structure after, not only required precision reduce, and
The increase of itself non-deformability, copper coin can realize that turning over conversion surface is continuing with, and reduces cost during repair and replacement.It is fixed
Mechanism can be achieved to be fixed in use, need to only rotatably compress bolt and push against its lower surface and copper coin, with simple in construction,
Advantage convenient to use.When it is implemented, screwed hole each uniform intervals arrangement of four sides on connector installing plate is compressed,
It is convenient to compress force balance.The screw thread of screwed hole and hold-down bolt is preferred to use closely-pitched design during specific implementation, improves load effect
Really.
As optimization, the installing plate two ends are folded to after extending downwardly to be extended inwardly to form articulated end and constitutes the compression
Connector, articulated end is used for and water tank panel lower surface mounting in bottom coordinates fixation.So, connector is compressed from as individually removable
The structure type unloaded, facilitates itself repair and maintenance and replacing.
A locking nut is also arranged with as optimization, on the hold-down bolt above the installing plate.So, hold-down bolt
After being fixed, locking nut can be leaned on the locked fixation of hold-down bolt, water tank copper coin can be further prevented in use
Heated inequality causes hold-down bolt to loosen.
As optimization, the felt pad of hard is provided between hold-down bolt lower end head and copper coin upper surface.So,
It can further prevent bottom water tank from producing with hold-down bolt end in use to beat arc in the case where ensureing thrust, and
Box-like body compressing structure part upper screwed hole tooth line is damaged, is increased the service life.When it is implemented, felt pad can be bonded directly admittedly
It is scheduled on hold-down bolt lower surface, convenient use.
As optimization, the bottom water tank panel, rubber gasket and copper coin phase the same side are hung down close to side edge along along the side
Line is symmetrically arranged with two groups of vertically communicated positioning holes, positioning hole and is combined with pilot pin（Realize the positioning to three）.So,
During installation, positioning hole and pilot pin can be first leaned on to realize the positioning to bottom water tank panel, rubber gasket and copper coin three, then
Again it is pressured fasten mechanism realize be fixed.Make it more convenient for assembly.Positioning hole is symmetrically arranged two groups, facilitates copper coin
It is secondary after turn-over to use.
So, above-mentioned technical proposal, can be achieved the two-sided utilization of positive and negative of bottom water tank consumable accessory copper coin, improves copper coin
Utilization rate, the structure for having a processing mating holes about more than 30 compared to traditional copper coin periphery design greatly reduces the machining accuracy of copper coin
It is required that and process time, the tension-type fastening structure of the novel relatively conventional water tank of bolt presses fastening structure is even more to significantly facilitate
The replacement operation of bottom water tank copper coin.
Compared with the existing technology compared with the present invention is simple and reasonable, safe and reliable, solves phase present in prior art
Answer problem.In the case where reaching traditional electroslag remelting bottom water tank coolant seal and conductive effect, bottom water tank consumable accessory copper coin is realized
The two-sided utilization of positive and negative, greatly improves the utilization rate of copper coin, and greatly reduces requirement on machining accuracy and the processing of copper coin
Time, the tension-type fastening structure of the novel relatively conventional water tank of bolt presses fastening structure is even more to greatly facilitate bottom water tank copper
The replacement operation of plate, makes it safeguard more simple and fast, reduces the influence to the production time.The present invention has larger economic valency
Value and social value, are particularly suitable for use in being widely popularized in electroslag smelting industry and use.
In summary, the present invention has preheating function, and efficiency is high, and security is good, and metallurgical effect is excellent, with peace
Entirely, energy-efficient advantage, improves electroslag ingot smelting quality；The very convenient maintenance of bottom water tank simultaneously is changed, and reduces maintenance
Cost, improves cooling effectiveness.
Brief description of the drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the structural representation of single electrode preheating device in Fig. 1.
Fig. 3 is the schematic layout pattern of the specific embodiment of the invention.
Fig. 4 is the structural representation of the bottom water tank of crystallizer in the specific embodiment of the invention.
Fig. 5 is Fig. 4 structural blast schematic diagram.
Fig. 6 is the structural representation of independent box portion in Fig. 4.
Embodiment
With reference to optimal embodiment and its accompanying drawing, the present invention is described in further detail.
As Figure 1-3, a kind of electroslag smelting electric furnace system, including it is overall in the crystallizer 1 ' of oven-like, positioned at crystallizer
The electrode assembly of 1 ' side, the wherein lower end of crystallizer 1 ' are provided with the bottom water tank of cooling, and electrode assembly includes pillar 2 ', pillar
Upper movable sleeve is provided with the electrode 4 ' just installed on transverse arm 3 ', transverse arm 3 ' to crystallizer and extend down into crystallizer, and electrode 4 ' is wrapped
The fixed part and hypomere that including epimere is used to be connected with transverse arm are used for the Smelting Part being dissolved into when smelting in electroslag, electrode assembly
Also include being used for controlling elevating mechanism that transverse arm lifts along pillar and the whirler for controlling transverse arm to be rotated around column axle center
Structure；Wherein, the electrode assembly is two sets and is correspondingly arranged at the both sides of crystallizer 1 ', in addition to electrode preheating device, and electrode is pre-
Thermal has vertically arranged and upper end open a heating chamber for being capable of the insertion of power pole lower end, also with can be used in
To the heater of the heated by electrodes of insertion.
So it is provided with two sets electrode assemblies and is total to same crystallizer, while there is provided electrode preheating device, so when one
Set electrode assembly is being smelted in use, another set of electrode assembly can not only carry out installing the work such as electrode, will can also pacify
The electrode installed is inserted into electrode preheating device, and mounted electrode is preheated, the sensing in coil electromagnetic field of high frequency
Under, the electrode blank termination fast heating of burner hearth is stretched into, quick heating, thermal loss is small, temperature homogeneity is high.Used when smelting
Electrode is finished and removed, and is fed and is arranged after crystallizer again, and preheated electrode can be moved into crystallizer
Smelt.So circulation.Both the time is saved, efficiency is improved, while to electricity before metal electrode blank carries out remelting
Pole blank termination is preheated, can prevent metal electrode enter slag after, electrode blank termination steep temperature rise and burst
Or the phenomenon of chip off-falling；Enter prevented also from electrode blank behind molten bath, make ESR ingot occur strangling shell, slag because bath temperature rapid drawdown is low
Ditch, composition be uneven, containing the mass defect such as miscellaneous.Therefore improve security and metallurgical effect.
Wherein, elevating mechanism includes the leading screw 5 ' that one and column are vertically installed side by side, and the one end of transverse arm 3 ' is fixedly installed
Coordinate the nut on leading screw 5 ', the lower end of leading screw 5 ' is connected with a lifting motor 6 ' and it can be leaned on to drive rotation；The column
2 ' include column shell and column inner core, and column inner core is fixed on ground, and column shell is rotatably coaxially set in column
Outside core, column shell lower end is fixedly connected with a bottom plate 19 ', and the lifting motor 6 ' and leading screw 5 ' are fixedly mounted on bottom relatively
On plate 19 ', it is additionally provided with electric rotating machine 7 ' and is connected with column shell composition rotating mechanism, electric rotating machine 7 ' can be driven outside column
Shell rotates around column inner core.It is so simple in construction, and the lifting and rotation control to transverse arm are very convenient quick.
Wherein, the electrode preheating device is one, and two electrodes are on respective transverse arm in two sets of electrode assemblies
Circle is each arranged in two intersection points with two intersecting intersection points, the crystallizer 1 ' and electrode preheating device where rotating path
Position.After being so laid out, two electrodes can share an electrode preheating device, dexterously save equipment using layout structure
Cost.
Wherein, the electrode preheating device includes housing 8 ', and housing 8 ' is internally provided with refractory insulating material 9 ' and in
Portion forms heating chamber, the interior induction coil for being embedded with setting of being spiraled around heating chamber lift of the refractory insulating material 9 '
10 ' form heater.
So, refractory insulating material can be formed good protective layer, increased the service life with thermal insulation and insulation.Heating dress
The non-contact thermal using induction coil is put, under the sensing of coil electromagnetic field of high frequency, makes the electrode billet for stretching into heating chamber
Expect termination fast heating, quick heating, thermal loss is small, temperature homogeneity is high, can have good heating effect and efficiency, together
When induction coil be laid in fireproof high-temperature resistant insulating materials protective layer and avoid and electrode contact, damaged to prevent practical operation is improper
The clamping of electrode blank termination not just or telescopic location is improper, makes it collide or contact with induction coil in bad induction coil, such as use
The problems such as arc damages induction coil is beaten, security hidden trouble present in its technology is solved.It, which can be used for a long time, is not required to change,
Service life is long, safe efficient, energy-conservation.
Wherein, it is additionally provided with and coil on the inner hollow of induction coil 10 ' formation coil cooling-water duct, the side of housing 8 '
Coil cooling water inlet 11 ' and coil coolant outlet 12 ' that the two ends of cooling-water duct short transverse are connected.So, coil
Using cooling water cooling, prevent that coil own temperature is too high, improve to coil protecting effect, increase the service life.Coil is cooled down
Aquaporin can also connect crystallizer bottom water tank cooling recirculation system in, do not increase extra cooling facility cost.
Wherein, protective gas passage 13 ' is additionally provided with the housing, the inner gas outlet of protective gas passage 13 ' is located at
Heating chamber bottom, outer end air inlet is used for external protection source of the gas.So, inert gas shielding can be provided during preheating, it is to avoid
Electrode blank termination oxidative phenomena present in warm, prevents the scaling loss of active element, prevents the oxygen content in steel from increasing
It is high, it is ensured that metallurgical effect.
Wherein, the protective gas passage 13 ' be higher than heating chamber inner bottom surface set annular channel structure, it is described go out
Gas port is circumferentially equally distributed multiple and be circumferentially communicated to heating chamber obliquely along identical incline direction around circular passage
Room bottom.So, can cause after venthole outlet can the upward annularly flow of side-lower out of protection device, can be preferably
Air in script furnace chamber is expelled from furnace chamber inner space, protecting effect is improved,
Wherein, it is in drum-shaped that the housing 8 ' is overall, and heating chamber is the cylinder being coaxially disposed, and case top lid sets solid
Surely there is the cap 14 ' of matching, the middle part of cap 14 ' is provided with the via coaxial with heating chamber, and via diameter is more than electrode external diameter
And less than heating chamber diameter.So, housing and heating chamber cross section are circle, can save the device space, improve plus
The thermal efficiency, the cap of setting can limit the position of electrode insertion, prevent electrode and heating chamber inwall from contacting and producing destruction,
While cap can be limited, protective gas is excessive, and raising gas shield effect is improved to electrode protection effect.In addition, cap is
Detachable lid, which is set, to be fixedly installed, and can facilitate the installation settings and repair and maintenance of housing interior structure.
Wherein, temperature sensor 15 ', TEMP are additionally provided with positioned at induction coil top position in the heating chamber
Device 15 ' is non-contact temperature sensor and is connected with an alarm outside housing.So, can accurate measuring electrode blank
Actual temperature when termination is preheated.So that electrode blank termination reaches very good pre-heat effect.When detecting temperature mistake
When hot, alarm can be sent by alarm, prevent overheat, improved to electrode protection effect.Using non-contact temperature sensor
Avoid with electrode contact and cause destruction, alarm can use buzzer or warning lamp.
Wherein, the bottom of housing 8 ' is additionally provided with cooling water chamber 16 ', and the side of cooling water chamber 16 ' is provided with into water
Pipeline 17 ', opposite side is provided with outlet conduit 18 '.So, cooling water chamber can the further pre- hot charging of cooling protection electrode
Put, the extension fixture life-span.Cooling water chamber can also connect crystallizer bottom water tank cooling recirculation system in, do not increase extra
Cooling facility cost.
In present embodiment, the bottom cisten mechanism of crystallizer as Figure 4-Figure 6, including casing 2, the side of casing 2 connects
It is logical to be provided with water inlet pipe 4 and outlet pipe 5, the upper end open of casing 2 and it is formed with rectangle deckle board to surrounding is horizontal-extending at opening
The bottom water tank panel 8 of structure, the upper surface of bottom water tank panel 8 correspondence is equipped with the rubber gasket 6 of rectangle frame plate structure, and rubber is close
The top of packing 6 is covered again is provided with flat copper coin 3；Wherein, cooling water flow-guiding structure is additionally provided with inside casing 2 to be used to make
Vortex flow of the cooling water formation from casing center to surrounding, cooling water flow-guiding structure includes vertically setting positioned at casing inner bottom surface
Put and spiral spiral deflector 9, leave water supply stream above the upper surface of spiral deflector 9 and casing between copper coin lower surface
The space of flowing, spiral deflector 9 is centrally located at the inner bottom surface medium position of casing 2 and water inlet tube end extends to spiral stream guidance
Plate center.
So, spiral deflector can guide helical flow of the current formation to both sides in the middle part of water tank, current well
Water inlet and flow direction produce thermal temperature Region Matching with copper coin, produce preferably heat transfer effect, improve water tank cooling effectiveness
With the cooling uniformity, it is better protected from the heated inequality of copper coin and deforms.
Wherein, water fender is fixedly installed along itself extending spirally direction uniform intervals on the side wall of spiral deflector 9
10, the upper end of water fender 10 is obliquely installed to flow reversal direction, and water fender side is fixed on spiral deflector 9, opposite side and
The space for flowing of supplying water is left between corresponding spiral deflector.So water fender, which can cause, streams and is formed local vortex,
Preferably improve heat exchanger effectiveness.It is made, on the one hand can prevents when it is implemented, spiral deflector and water fender are stainless steel
Corrosion, generates incrustation scale, can also extend water tank service life.
Wherein, the top of copper coin 3 be additionally provided be fixed mechanism be used for realize it is solid to the compression of copper coin and rubber gasket
It is fixed.
So, using mechanism is fixed, from top, realization is fixed to copper coin, and existing use turnbuckle
Realize that fixed frame mode is compared through copper coin, rubber gasket and bottom water tank panel, will not produce because bolt is through more
The problem of causing to be difficult to dismounting after the layer deformation of member, it is easy to remove and repair.Copper coin surface is without setting excessive high accuracy will simultaneously
The bolt hole asked, reduce to component set precision requirement, copper coin be whole board structure after, not only required precision reduce, and
The increase of itself non-deformability, copper coin can realize that turning over conversion surface is continuing with, and reduces cost during repair and replacement.
Wherein, the mechanism that is fixed includes a compression connector 1, compresses the lower end of connector 1 and is connected with casing 2
And load, compress horizontal rectangular frame structure of the upper end of connector 1 correspondence rubber gasket 6 top position with a matching
Correspondence rubber gasket is vertically provided with a circle screwed hole 7, screwed hole on installing plate, installing plate is connected with hold-down bolt under
13, the lower end of hold-down bolt 13 is connected to the upper surface of copper coin 3 and realizes being fixed to copper coin 3 and rubber gasket 6.
So, it can be achieved to be fixed, have in use, need to only rotatably compress bolt and push against its lower surface and copper coin
Advantage simple in construction, convenient to use.When it is implemented, the screwed hole for compressing four sides on connector installing plate is each uniform
It is intervally arranged, it is convenient to compress force balance.The screw thread of screwed hole and hold-down bolt is preferred to use closely-pitched design during specific implementation, carries
High load effect.
Wherein, the installing plate two ends are folded to extend inwardly to form articulated end and constitute described compress after extending downwardly and connected
Part 1, articulated end is used for and water tank panel lower surface mounting in bottom coordinates fixation.So, connector is compressed from as individually detachable
Structure type, facilitate itself repair and maintenance and replacing.
Wherein, also it is arranged with a locking nut on the hold-down bolt 13 above the installing plate（Do not shown in figure）.This
Sample, after hold-down bolt is fixed, can lean on locking nut by the locked fixation of hold-down bolt, can further prevent water tank copper coin from existing
Inequality of being heated during use causes hold-down bolt to loosen.
Wherein, the felt pad of hard is provided between the lower end head of hold-down bolt 13 and the upper surface of copper coin 3.So,
It can further prevent bottom water tank from producing with hold-down bolt end in use to beat arc in the case where ensureing thrust, and
Box-like body compressing structure part upper screwed hole tooth line is damaged, is increased the service life.When it is implemented, felt pad can be bonded directly admittedly
It is scheduled on hold-down bolt lower surface, convenient use.
Wherein, the bottom water tank panel, rubber gasket and copper coin phase the same side close to side edge along the side perpendicular bisector pair
Claim to be provided with the positioning that pilot pin realization is combined with two groups of vertically communicated positioning holes 14, positioning hole to three（Do not show in figure
Show）.So, during installation, positioning hole and pilot pin can be first leaned on to realize to bottom water tank panel, rubber gasket and copper coin three
Positioning, then again it is pressured fasten mechanism realize be fixed.Make it more convenient for assembly.Positioning hole is symmetrically arranged two
Group, facilitates secondary after copper coin turn-over use.
When it is implemented, can also further improve on the basis of the above, for example, one can be set in the bottom water tank
The temperature sensor being connected with warning device signal, so, after the water tank cooling water temperature exception of bottom, or in water tank copper coin use
When beating that arc is thinning to cause the local rapid abnormal change of coolant water temperature, temperature sensor detects temperature change can be in time by signal
Pass to warning device alarm.Preferably to avoid causing production accident and loss by arc through copper coin, further lifting is pacified
Full reliability.
Compared with the existing technology compared with bottom water tank for electric slag resmelting of the present invention is simple and reasonable, safe and reliable, solves
Corresponding problem present in prior art.It is real in the case of traditional electroslag remelting bottom water tank coolant seal and conductive effect is reached
Show the two-sided utilization of positive and negative of bottom water tank consumable accessory copper coin, greatly improve the utilization rate of copper coin, and greatly reduce copper
The requirement on machining accuracy of plate and process time, the tension-type fastening structure of the novel relatively conventional water tank of bolt presses fastening structure
The replacement operation of bottom water tank copper coin is even more greatly facilitated, it is safeguarded more simple and fast, reduces the influence to the production time.
The present invention has larger economic value and social value, is particularly suitable for use in being widely popularized in electroslag smelting industry and uses.
Claims (9)
1. a kind of electroslag smelting electric furnace system, including overall crystallizer, the electrode assembly positioned at crystallizer side in oven-like, its
Middle crystallizer lower end is provided with the bottom water tank of cooling, and electrode assembly includes movable sleeve on pillar, pillar and is provided with transverse arm, transverse arm
Just crystallizer is installed and is extending down into the electrode of crystallizer, electrode include epimere be used for the fixed part that is connected with transverse arm with
Hypomere is used for the Smelting Part being dissolved into when smelting in electroslag, and electrode assembly also includes being used to control the liter that transverse arm is lifted along pillar
Descending mechanism and the rotating mechanism for controlling transverse arm to be rotated around column axle center；Characterized in that, the electrode assembly is two sets
And crystallizer both sides, in addition to electrode preheating device are correspondingly arranged at, electrode preheating device has a vertically arranged and upper end
The heating chamber for being capable of the insertion of power pole lower end of opening, also with the heater that can be used in the heated by electrodes of insertion；
The electrode preheating device is rotating path institute of two electrodes on respective transverse arm in one, two sets of electrode assemblies
In circle with two intersecting intersection points, crystallizer and the electrode preheating device is each arranged in two position of intersecting point, make its two
Individual electrode shares an electrode preheating device and preheated, and shares a crystallizer and is crystallized.
2. electroslag smelting electric furnace system as claimed in claim 1, it is characterised in that the electrode preheating device includes housing,
Enclosure interior is provided with refractory insulating material and formed at middle part and is embedded with heating chamber, the refractory insulating material around heating
Chamber lift spiral setting induction coil formation heater.
3. electroslag smelting electric furnace system as claimed in claim 2, it is characterised in that induction coil inner hollow formation coil is cold
But the coil cooling water inlet connected with the two ends of coil cooling-water duct short transverse is additionally provided with aquaporin, housing side
With coil coolant outlet.
4. electroslag smelting electric furnace system as claimed in claim 2, it is characterised in that be additionally provided with protective gas in the housing
Passage, protective gas passage the inner gas outlet is located at heating chamber bottom, and outer end air inlet is used for external protection source of the gas.
5. electroslag smelting electric furnace system as claimed in claim 4, it is characterised in that the protective gas passage is higher than heating
The annular channel structure that chamber inner bottom surface is set, the gas outlet is circumferentially equally distributed multiple and circumferentially around circular passage
Heating chamber bottom is communicated to obliquely along identical incline direction.
6. electroslag smelting electric furnace system as claimed in claim 2, it is characterised in that the housing is in integrally drum-shaped, heating
Chamber is the cylinder being coaxially disposed, and case top lid sets and is provided with and heating chamber in the middle part of the cap for being fixed with matching, cap
Coaxial via, via diameter is more than electrode external diameter and less than heating chamber diameter.
7. electroslag smelting electric furnace system as claimed in claim 2, it is characterised in that be located at induction coil in the heating chamber
Top position is additionally provided with temperature sensor, and temperature sensor is non-contact temperature sensor and is located at the report outside housing with one
Alert device is connected.
8. electroslag smelting electric furnace system as claimed in claim 2, it is characterised in that the housing bottom is additionally provided with cooling water
Chamber, cooling water chamber side is provided with inlet channel, and opposite side is provided with outlet conduit.
9. electroslag smelting electric furnace system as claimed in claim 1, it is characterised in that the bottom cisten mechanism of crystallizer lower end, bag
Include casing, body side is provided with and communicated with water inlet pipe and outlet pipe, casing upper end open and horizontal-extending to surrounding at opening
The bottom water tank panel of rectangle frame plate structure is formed with, the rubber that bottom water tank panel upper surface correspondence is equipped with rectangle frame plate structure is close
Covered again above packing, rubber gasket and be provided with flat copper coin；It is additionally provided with above copper coin and is fixed mechanism and is used for
Realization is fixed to copper coin and rubber gasket, and the mechanism that is fixed includes a compression connector, compresses connection
Part lower end is connected and load with casing, and compressing connector upper end correspondence rubber gasket top position has the water of a matching
Correspondence rubber gasket is vertically provided with a circle screwed hole on the installing plate of flat rectangular frame structure, installing plate, in screwed hole to
Under be connected with hold-down bolt, hold-down bolt lower end is connected to copper coin upper surface and realized to be consolidated to the compression of copper coin and rubber gasket
It is fixed.
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| CN101457297A (en) * | 2009-01-07 | 2009-06-17 | 朱兴发 | Double-station high efficiency electroslag furnace |
| CN104451177A (en) * | 2014-12-15 | 2015-03-25 | 重庆钢铁(集团)有限责任公司 | Metal electroslag remelting smelting atmosphere protection method |
| CN104515398A (en) * | 2013-10-04 | 2015-04-15 | 韩国水力原子力株式会社 | Tapping device and method using induction heat for melt |
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| CN101570828B (en) * | 2009-05-15 | 2011-01-19 | 南昌大学 | Energy saving two-stage electroslag refining system capable of outputting molten metal |
| RU2533579C1 (en) * | 2013-03-28 | 2014-11-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Electroslag furnace for production of hollow ingot |
| CN103409640A (en) * | 2013-08-07 | 2013-11-27 | 武汉重工铸锻有限责任公司 | Gantry frame type dual-furnace-end three-station interchangeable smelting electric slag furnace with driven-out crystallizer vehicle |
| DE102013016192B3 (en) * | 2013-09-28 | 2015-01-15 | Messer Austria Gmbh | Apparatus and method for electroslag remelting |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457297A (en) * | 2009-01-07 | 2009-06-17 | 朱兴发 | Double-station high efficiency electroslag furnace |
| CN104515398A (en) * | 2013-10-04 | 2015-04-15 | 韩国水力原子力株式会社 | Tapping device and method using induction heat for melt |
| CN104451177A (en) * | 2014-12-15 | 2015-03-25 | 重庆钢铁(集团)有限责任公司 | Metal electroslag remelting smelting atmosphere protection method |
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