CN205681653U - Circular electric furnace and electrode arrangement thereof - Google Patents
Circular electric furnace and electrode arrangement thereof Download PDFInfo
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- CN205681653U CN205681653U CN201620509366.6U CN201620509366U CN205681653U CN 205681653 U CN205681653 U CN 205681653U CN 201620509366 U CN201620509366 U CN 201620509366U CN 205681653 U CN205681653 U CN 205681653U
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Abstract
This utility model provides a kind of circular electric furnace and electrode arrangement thereof, the electrode arrangement of this circle electric furnace includes: 2n electrode and n single-phase transformer, one single-phase transformer includes that two outfans, 2n electrode are connected with the outfan of n single-phase transformer respectively；Wherein, n is integer, and n >=2.The electrode arrangement of the circular electric furnace that this utility model provides, including 2n electrode and n single-phase transformer, and n >=2, i.e. include at least 4 electrodes and 2 single-phase transformers, one single-phase transformer connects two electrodes, thus the quantity of electrode and the quantity of transformator in effectively increasing circular electric furnace, 3 electrodes and the restriction of a transformator can only be set in having broken typical round electric furnace, and then effectively expand the electrical power of circular electric furnace.
Description
Technical field
This utility model relates to smelting equipment technical field, and the electrode in particular to a kind of circular electric furnace arranges knot
Structure and include the circular electric furnace of this electrode arrangement.
Background technology
At present, typical round metallurgy alternating current electric furnace or electric furnace arrangement for producing steel are all to arrange three electrodes, three electrode centers
Line formed an equilateral triangle.This electrode arrangement has the disadvantages that 1) limited by electrode diameter size,
Current intensity has become bottlenecks, and the transformator size of the metallurgical electric furnace of three electrodes is just restricted, it is impossible to expand；2) three
In the circular metallurgical electric furnace of individual electrode, due to the generation of faradism magnetic force, electric arc repels each other, and its position deflection is by center of electric furnace and electricity
Pole center line connecting direction, therefore forms a blossom type molten bath, is unfavorable for the control of charging.
Utility model content
In order to solve at least one above-mentioned technical problem, a purpose of the present utility model is to provide a kind of circular electric furnace
Electrode arrangement.
Another purpose of the present utility model is to provide a kind of circular electric furnace including above-mentioned electrode arrangement.
To achieve these goals, the embodiment of this utility model first aspect provides the electrode cloth of a kind of circular electric furnace
Put structure, including: 2n electrode；With n single-phase transformer, single-phase transformer described in includes two outfans, and 2n described
The outfan of electrode described single-phase transformer individual with n respectively is connected；Wherein, n is integer, and n >=2.
The electrode arrangement of the circular electric furnace that the embodiment of this utility model first aspect provides, including 2n electrode with
N single-phase transformer, and n >=2, i.e. include that at least 4 electrodes and 2 single-phase transformers, a single-phase transformer connect two
Electrode, thus the quantity of electrode and the quantity of transformator in effectively increasing circular electric furnace, broken in typical round electric furnace
3 electrodes and the restriction of a transformator can only be set, and then effectively expand the electrical power of circular electric furnace.
It addition, the electrode arrangement of circular electric furnace in above-described embodiment of providing of this utility model can also have as
Lower additional technical feature:
In technique scheme, n is 3.
N is 3, i.e. the electrode arrangement of this circle electric furnace includes 6 electrodes and 3 single-phase transformers, due to a list
Phase transformer connects two electrodes, therefore two electrodes being connected with same single-phase transformer are in-phase electrodes, and the electric current passed through is
In-phase current, then 6 electrodes and 3 single-phase transformers form the electrode arrangement of 3 phase 6 electrodes, can pass through three-phase alternating current
Power, owing to current intensity and time are sine relations, so three-phase alternating current can average current intensity effectively, make shape
The molten bath become is more uniform.Certainly, it will be understood by those of skill in the art that the size according to circular electric furnace interior space, also
Can be to arrange the electrode arrangement of the form such as 2 single-phase transformers and 4 electrodes, 4 single-phase transformers and 8 electrodes, only
There is enough spaces, it is possible to accommodate these electrodes, all can play the mesh of enlarged rounded electric furnace electrical power in wanting furnace chamber
, and all without departing from design philosophy of the present utility model and objective, the most all in protection domain of the present utility model.
In any of the above-described technical scheme, six described electrodes be arranged in parallel along the circumference of described electric furnace.
In any of the above-described technical scheme, six described electrodes are centrally located on same circle, described round-formed six
The pole heart circle of described electrode.
In any of the above-described technical scheme, the center of circle of described pole heart circle and the center superposition of the furnace chamber of described electric furnace.
Six electrodes be arranged in parallel along the circumferencial direction of electric furnace, then the molten bath that six electrodes are formed also is divided along the circumference of electric furnace
Cloth, so the molten bath in furnace chamber is relatively uniform, then the load that furnace wall is subject to is the most relatively uniform, thus avoids certain position
Because high-temperature melt flow washes away, situation that is serious and that be badly damaged occurs furnace wall, effectively extends the service life of furnace wall, Jin Erti
The safety of high circular electric furnace and durability；Further, six electrodes are centrally located on same circle, form the pole heart
Circle, so makes the shape in molten bath in furnace chamber be more nearly circle, thus molten bath is more uniform, and the load that furnace wall is subject to is the most more
Uniformly；Preferably, the center of circle of pole heart circle and the center superposition of the furnace chamber of electric furnace, so, molten bath can be in the centre of furnace chamber
Formed, thus be further ensured that the uniformity of circular electric furnace furnace wall load, further increase the safety of circular electric furnace and resistance to
Property for a long time.
It is to be understood that in open arc smelting system, electric arc trend has with the safety of molten bath flowing and furnace wall greatly
Relation.In typical round electric furnace, electric arc repels one another, if in order to lower consumption of electrode or significant power operation, it is necessary to
Improve voltage；If but voltage is high, electric arc can be the longest, and electric arc tail can burn out corresponding furnace wall sometimes.The most domestic smelting
Gold stove is the most all avoided using high voltage operation.But, if low voltage operating, the highest electric current can cause strong electric arc to move
Amount, impacts weld pool surface so that the slag of excessive temperature flows to furnace wall towards furnace wall direction；If blanking is uneven, furnace wall easily by
Erosion failure.Therefore the layout of electrode is extremely important, not only affects the formation in molten bath, also affects the trend of electric arc, melts molten bath
The impact of stream is the biggest.
In any of the above-described technical scheme, two the described electrodes being connected with same described single-phase transformer are homophase electricity
Pole, two described electrodes of homophase are disposed adjacent.
Two electrodes making homophase are disposed adjacent, and on the one hand make the electrode arrangement of 3 phase 6 electrodes be equivalent to three solely
Vertical single-phase electricfurnace is close to, and centre is not provided with furnace wall interval, shares molten bath, so effectively increases the electric work of single electric furnace
Rate；On the other hand also avoid the situation causing power factor (PF) to be greatly lowered that causes influencing each other between out-phase electrode arranged in a crossed manner
Occur.If it is to be understood that the two of homophase electrode crossing are arranged, then interacting between each phase, electric arc trend is not
There is certain rule, it is possible to create a large amount of harmonic waves, cause power factor (PF) to be greatly lowered.
In any of the above-described technical scheme, the center of circle that the center of adjacent two described electrodes of out-phase is round with the described pole heart
Angle between line is β.
In any of the above-described technical scheme, the center of circle that the center of adjacent two described electrodes of homophase is round with the described pole heart
Angle between line is α, alpha+beta=120 °.
Owing to enclosing in conglobate six electrodes, two electrodes of homophase are disposed adjacent, and therefore six electrodes define three
To adjacent in-phase electrodes and three to adjacent out-phase electrode, then the center of every pair of adjacent electrode and the line of the round heart of the pole heart
Between be respectively formed an angle, arrange three here to being formed between the center of adjacent out-phase electrode and pole heart circle circle center line connecting
The angle of three angles is β, be due to out-phase electrode between electric arc attracting, and the electric arc between in-phase electrodes repels each other, because of
Three angles between these three pairs of out-phase electrodes are equal, it is possible to make electric arc that six electrodes produce relatively and equably along electric furnace
Circumference moves towards such that it is able to form a uniform circular molten bath.
Further, three to three angles of formation between center and the pole heart circle circle center line connecting of adjacent in-phase electrodes
Angle is α, due to 3 α+3 β=360 °, therefore alpha+beta=120 °, the circle that the center of the most adjacent two electrodes of homophase is round with the pole heart
Angle beta between the line in the center of circle that the angle [alpha] between the line of the heart is round with the center of adjacent two electrodes of out-phase and the pole heart
Sum is 120 °, then 3 phase 6 electrodes are arranged symmetrically with in circular electric furnace, so make interfering between three pairs of in-phase electrodes
Average, and then the electric arc and the molten bath that produce are the most symmetrical, more uniformly, make the melt flow relative to the furnace wall of circumference be all
The same, thus improve the life-span of furnace wall, and then improve safety and the durability of circular electric furnace.
In any of the above-described technical scheme, distance B between the center of adjacent two described electrodes of out-phase is with adjacent
The ratio B/A of distance A between the center of two described electrodes of homophase is not less than 1.
In any of the above-described technical scheme, distance B between the center of adjacent two described electrodes of out-phase is with adjacent
The ratio B/A of distance A between the center of two described electrodes of homophase is more than or equal to 1.1 and less than or equal to 1.3.
Distance A between distance B between the center of adjacent out-phase electrode and the center of adjacent in-phase electrodes is set
Ratio B/A not less than 1, distance B between the center of the most adjacent out-phase electrode more than adjacent in-phase electrodes center it
Between distance A, to avoid the electric arc between out-phase electrode the most attracting, cause district of localized hyperthermia, so electric arc averagely received
Between biphase, uniform circular molten bath can be formed in making circular electric furnace, in order to the control of charging；Meanwhile, electric arc receives two
Between Xiang, additionally it is possible to avoid electric arc tail to sweep and occur to the situation of furnace wall, so that circular electric furnace can be with high voltage operation, with fall
Low electrode is lost, and high-temperature melt flow can also be avoided to flow to furnace wall simultaneously.Preferably, B/A is more than or equal to 1.1 and is less than or equal to 1.3,
So can improve the uniformity of arc-distribution further, and then improve the uniformity coefficient in circular molten bath further.
Ratio d/D in any of the above-described technical scheme, between described pole heart diameter of a circle d and the internal diameter D of described furnace chamber
It is not more than 0.5.
Ratio d/D in any of the above-described technical scheme, between described pole heart diameter of a circle d and the internal diameter D of described furnace chamber
More than or equal to 0.25 and less than or equal to 0.33.
The ratio d/D arranged between the heart diameter of a circle d and the internal diameter D of furnace chamber of pole is not more than 0.5, i.e. pole heart diameter of a circle d
Less than the half of furnace chamber internal diameter D, so on the one hand relatively increase the distance between electrode and furnace wall, thus avoid electric arc tail
Sweep the situation causing furnace wall to burn out to furnace wall to occur, on the other hand molten bath can be efficiently controlled in the middle part of furnace chamber,
Thus avoid high-temperature melt flow and flow to furnace wall and cause furnace wall to wash away impaired situation occurring, this is effectively improved the use of furnace wall
Life-span, and then improve safety and the durability of circular electric furnace.Preferably, d/D is more than or equal to 0.25 and is less than or equal to 0.33,
So can extend the service life of furnace wall further, thus improve safety and the durability of circular electric furnace further.
The embodiment of this utility model second aspect provides a kind of circular electric furnace, including as appointed in first aspect embodiment
The electrode arrangement of one described circular electric furnace.
The circular electric furnace that the embodiment of this utility model second aspect provides, arbitrary because being provided with in first aspect embodiment
The electrode arrangement of the circular electric furnace described in Xiang, thus effectively expand the electrical power of circular electric furnace, and can be formed all
Even circular molten bath, is beneficial to the control of charging, the most also extends the service life of furnace wall, improves the safety of circular electric furnace
Property and durability.
Additional aspect of the present utility model and advantage will become obvious in following description part, or new by this practicality
The practice of type is recognized.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from combining general the accompanying drawings below description to embodiment
Become obvious and easy to understand, wherein:
Fig. 1 is the schematic diagram of the electrode arrangement of circular electric furnace described in the utility model.
Wherein, the corresponding relation between the reference in Fig. 1 and component names is:
No. 11 electrodes, 12 No. two electrodes, 13 No. three electrodes, 14 No. four electrodes, 15 No. five electrodes, 16 No. six electrodes, 20
Pole heart circle, 30 furnace walls, 40 single-phase transformers.
Detailed description of the invention
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
This utility model is further described in detail by body embodiment.It should be noted that in the case of not conflicting, this Shen
Feature in embodiment please and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding this utility model, but, this practicality
Novel can implement to use other to be different from other modes described here, therefore, protection domain of the present utility model is also
Do not limited by following public specific embodiment.
Describe referring to Fig. 1 and arrange knot according to the circular electric furnace described in some embodiments of this utility model and electrode thereof
Structure.
As it is shown in figure 1, the electrode arrangement of the circular electric furnace of the embodiment offer of this utility model first aspect, bag
Include: 2n electrode and n single-phase transformer 40.
Specifically, a single-phase transformer 40 includes two outfans, 2n electrode defeated with n single-phase transformer 40 respectively
Go out end to be connected；Wherein, n is integer, and n >=2.
The electrode arrangement of the circular electric furnace that the embodiment of this utility model first aspect provides, including 2n electrode with
N single-phase transformer 40, and n >=2, i.e. include at least 4 electrodes and 2 single-phase transformers 40, and a single-phase transformer 40 is even
Connect two electrodes, thus the quantity of electrode and the quantity of transformator in effectively increasing circular electric furnace, break typical round
3 electrodes and the restriction of a transformator can only be set in electric furnace, and then effectively expand the electrical power of circular electric furnace.
In embodiments more of the present utility model, as it is shown in figure 1, n is 3.
In the above-described embodiments, n is 3, i.e. the electrode arrangement of this circle electric furnace includes 6 electrodes and 3 single-phase changes
Depressor 40, owing to a single-phase transformer 40 connects two electrodes, therefore two electrodes being connected with same single-phase transformer 40 are
In-phase electrodes, the electric current passed through is in-phase current, then 6 electrodes and 3 single-phase transformers 40 form the electrode cloth of 3 phase 6 electrodes
Put structure, can be powered by three-phase alternating current, owing to current intensity and time are sine relations, so three-phase alternating current can
Average current intensity effectively, the molten bath making formation is more uniform.
Certainly, it will be understood by those of skill in the art that the size according to circular electric furnace interior space, it is also possible to arrange 2
The electrode arrangement of the forms such as individual single-phase transformer 40 and 4 electrodes, 4 single-phase transformers 40 and 8 electrodes, if furnace chamber
Inside there is enough spaces, it is possible to accommodate these electrodes, all can play the purpose of enlarged rounded electric furnace electrical power, and all
Without departing from design philosophy of the present utility model and objective, the most all in protection domain of the present utility model.
Preferably, as it is shown in figure 1, six electrodes be arranged in parallel along the circumference of electric furnace.
It is highly preferred that six electrodes are centrally located on same circle, the pole heart circle 20 of round-formed six electrodes.
It is highly preferred that as it is shown in figure 1, the center superposition of the furnace chamber of the center of circle of pole heart circle 20 and electric furnace.
Six electrodes be arranged in parallel along the circumferencial direction of electric furnace, then the molten bath that six electrodes are formed is also along the circumference side of electric furnace
To distribution, so the molten bath in furnace chamber is relatively uniform, then the load that furnace wall 30 is subject to is the most relatively uniform, thus avoids certain position
Because high-temperature melt flow washes away, situation that is serious and that be badly damaged occurs the furnace wall 30 at the place of putting, and effectively extends the use longevity of furnace wall 30
Life, and then improve safety and the durability of circular electric furnace；Further, six electrodes are centrally located on same circle,
Forming pole heart circle 20, so make the shape in molten bath in furnace chamber be more nearly circle, thus molten bath is more uniform, furnace wall 30 is subject to
Load the most uniform；Preferably, the center superposition of the furnace chamber of the center of circle and the electric furnace of pole heart circle 20, so, molten bath can be
The centre of furnace chamber is formed, thus is further ensured that the uniformity of circular electric furnace furnace wall 30 load, further increases circle
The safety of electric furnace and durability.
It is to be understood that in open arc smelting system, electric arc trend has greatly with the safety of molten bath flowing and furnace wall 30
Relation.In typical round electric furnace, electric arc repels one another, if in order to lower consumption of electrode or significant power operation, and must
Voltage must be improved；If but voltage is high, electric arc can be the longest, and electric arc tail can burn out corresponding furnace wall 30 sometimes.The most domestic
Metallurgical furnace the most all avoid use high voltage operation.But, if low voltage operating, the highest electric current can cause strong electric arc
Momentum, impacts weld pool surface so that the slag of excessive temperature flows to furnace wall 30 towards furnace wall 30 direction；If blanking is uneven, furnace wall
30 are easily washed damage.Therefore the layout of electrode is extremely important, not only affects the formation in molten bath, also affects the trend of electric arc,
Impact on molten bath melt flow is the biggest.
In embodiments more of the present utility model, as it is shown in figure 1, two electrodes being connected with same single-phase transformer 40
For in-phase electrodes, two electrodes of homophase are disposed adjacent.
In the above-described embodiments, make two electrodes of homophase be disposed adjacent, on the one hand the electrode of 3 phase 6 electrodes is arranged
Structure is equivalent to three independent single-phase electricfurnaces and is close to, and centre is not provided with furnace wall 30 and is spaced, and shares molten bath, so effectively increases
Add the electrical power of single electric furnace；On the other hand also avoid and arranged in a crossed manner cause influencing each other between out-phase electrode causing power
The situation that factor is greatly lowered occurs.If it is to be understood that the two of homophase electrode crossing are arranged, then between each phase mutually
Affecting mutually, electric arc trend does not has certain rule, it is possible to create a large amount of harmonic waves, causes power factor (PF) to be greatly lowered.
In the above-described embodiments, further, as it is shown in figure 1, the center of adjacent two electrodes of out-phase justifies 20 with the pole heart
The center of circle line between angle be β.
Further, as it is shown in figure 1, the line in the center of adjacent two electrodes of homophase and the center of circle of pole heart circle 20 it
Between angle be α, alpha+beta=120 °.
Owing to enclosing in conglobate six electrodes, two electrodes of homophase are disposed adjacent, and therefore six electrodes define three
To adjacent in-phase electrodes and three to adjacent out-phase electrode, then the company in 20 centers of circle round with the pole heart, the center of every pair of adjacent electrode
It is respectively formed an angle between line, arranges three here to shape between center and pole heart circle 20 circle center line connectings of adjacent out-phase electrode
The angle of three angles become is β, be due to out-phase electrode between electric arc attracting, and the electric arc phase between in-phase electrodes
Scolding, therefore three angles between three pairs of out-phase electrodes are equal, it is possible to the electric arc making six electrodes produce is relative, and edge equably
Electric furnace circumference moves towards such that it is able to form a uniform circular molten bath.
Further, three three angles to being formed between center and pole heart circle 20 circle center line connectings of adjacent in-phase electrodes
Angle be α, due to 3 α+3 β=360 °, therefore alpha+beta=120 °, the center of the most adjacent two electrodes of homophase and pole heart circle 20
The center of circle line between the center of angle [alpha] and adjacent two electrodes of out-phase and pole heart circle 20 the center of circle line between
Angle beta sum is 120 °, then 3 phase 6 electrodes are arranged symmetrically with in circular electric furnace, and so make between three pairs of in-phase electrodes is mutual
Interference is average, and then the electric arc and the molten bath that produce are the most symmetrical, more uniformly, makes the melt flow furnace wall relative to circumference
30 are just as, thus improve the life-span of furnace wall 30, and then improve safety and the durability of circular electric furnace.
In the above-described embodiments, further, distance B between the center of adjacent two electrodes of out-phase is same with adjacent
The ratio B/A of distance A between the center of two electrodes is not less than 1 mutually.
Preferably, the center of distance B between the center of adjacent two electrodes of out-phase and adjacent two electrodes of homophase
Between the ratio B/A of distance A more than or equal to 1.1 and less than or equal to 1.3.
Distance A between distance B between the center of adjacent out-phase electrode and the center of adjacent in-phase electrodes is set
Ratio B/A not less than 1, distance B between the center of the most adjacent out-phase electrode more than adjacent in-phase electrodes center it
Between distance A, to avoid the electric arc between out-phase electrode the most attracting, cause district of localized hyperthermia, so electric arc averagely received
Between biphase, uniform circular molten bath can be formed in making circular electric furnace, in order to the control of charging；Meanwhile, electric arc receives two
Between Xiang, additionally it is possible to avoid electric arc tail to sweep and occur to the situation of furnace wall 30 so that circular electric furnace can with high voltage operation, with
Reduce export license, high-temperature melt flow can also be avoided to flow to furnace wall 30 simultaneously.Preferably, B/A more than or equal to 1.1 and is less than or equal to
1.3, so can improve the uniformity of arc-distribution further, and then improve the uniformity coefficient in circular molten bath further.
In the above-described embodiments, further, the ratio d/D between the diameter d and the internal diameter D of furnace chamber of pole heart circle 20 is not
More than 0.5.
Preferably, the ratio d/D between the diameter d and the internal diameter D of furnace chamber of pole heart circle 20 more than or equal to 0.25 and is less than
In 0.33.
The ratio d/D arranged between the diameter d and the internal diameter D of furnace chamber of pole heart circle 20 is not more than 0.5, and i.e. pole heart circle 20 is straight
The footpath d half less than furnace chamber internal diameter D, so on the one hand relatively increases the distance between electrode and furnace wall 30, thus avoids
Electric arc tail is swept the situation causing furnace wall 30 to burn out to furnace wall 30 and is occurred, and on the other hand molten bath can be efficiently controlled in furnace chamber
Middle part, thus avoid high-temperature melt flow and flow to furnace wall 30 and cause furnace wall 30 to wash away impaired situation occurring, this carries effectively
The high service life of furnace wall 30, and then improve safety and the durability of circular electric furnace.Preferably, d/D is more than or equal to
0.25 and less than or equal to 0.33, so can extend the service life of furnace wall 30 further, thus improve circular electric furnace further
Safety and durability.
The circular electric furnace that this utility model provides is described in detail below in conjunction with specific embodiments more of the present utility model
Electrode arrangement.
Embodiment one
As it is shown in figure 1, the electrode arrangement of circular electric furnace includes three single-phase transformers 40 and six electrodes；Six electricity
Pole be arranged in parallel along the circumferencial direction of electric furnace；And six electrodes are centrally located on same circle, i.e. it is positioned on pole heart circle 20；Pole
The center of circle of heart circle 20 and the center superposition of electric furnace furnace chamber；Two electrodes of homophase are disposed adjacent, 11, No. two electrodes 12 of an electrode
Forming the first phase, 13, No. four electrodes 14 of No. three electrodes form the second phase, and 15, No. six electrodes 16 of No. five electrodes form third phase；And
Angle between the center of adjacent in-phase electrodes with the line in pole heart circle 20 centers of circle is equal, is designated as α, adjacent out-phase electrode
Angle between center with the line in pole heart circle 20 centers of circle is equal, is designated as β, alpha+beta=120 °；The center of adjacent in-phase electrodes it
Between distance be designated as A, the distance between the center of adjacent out-phase electrode is designated as B.
Wherein, the power of each single-phase transformer 40 is 25MVA；The diameter d of pole heart circle 20 is 3.9 meters, and furnace chamber internal diameter D is
13.6 meters, therefore d/D ≈ 0.29；A is 1.77 meters, and B is 2.13 meters, therefore B/A ≈ 1.2；α is 54 °, and β is 66 °.
Embodiment two
Difference with embodiment one is, the power of each single-phase transformer 40 is 12MVA；The diameter d of pole heart circle 20 is
2.6 meters, furnace chamber internal diameter D is 9.1 meters, therefore d/D ≈ 0.29；A is 1.24 meters, and B is 1.36 meters, therefore B/A ≈ 1.1；α is 57 °, and β is
63°。
Embodiment three
Difference with embodiment one is, the power of each single-phase transformer 40 is 18MVA；The diameter d of pole heart circle 20 is
3.52 meters, furnace chamber internal diameter D is 12.3 meters, therefore d/D ≈ 0.29；A is 1.53 meters, and B is 1.98 meters, therefore B/A ≈ 1.3；α is 51 °, β
It it is 69 °.
Embodiment four
Difference with embodiment one is, the power of each single-phase transformer 40 is 30MVA；The diameter d of pole heart circle 20 is
3.9 meters, furnace chamber internal diameter D is 15.58 meters, therefore d/D ≈ 0.25；A is 1.77 meters, and B is 2.13 meters, therefore B/A ≈ 1.2；α is 54 °, β
It it is 66 °.
Embodiment five
Difference with embodiment one is, the power of each single-phase transformer 40 is 45MVA；The diameter d of pole heart circle 20 is
3.52 meters, furnace chamber internal diameter D is 10.68 meters, therefore d/D ≈ 0.33；A is 1.53 meters, and B is 1.98 meters, therefore B/A ≈ 1.3；α is 51 °, β
It it is 69 °.
Embodiment six
Difference with embodiment one is, the power of each single-phase transformer 40 is 5MVA；The diameter d of pole heart circle 20 is 3
Rice, furnace chamber internal diameter D is 6 meters, therefore d/D ≈ 0.5；A is 1.43 meters, and B is 1.57 meters, therefore B/A ≈ 1.1；α is 57 °, and β is 63 °.
Embodiment seven
Difference with embodiment one is, the power of each single-phase transformer 40 is 5MVA；The diameter d of pole heart circle 20 is 3
Rice, furnace chamber internal diameter D is 6 meters, therefore d/D ≈ 0.5；A is 1.5 meters, and B is 1.5 meters, therefore B/A ≈ 1；α is 60 °, and β is 60 °.
Above-mentioned specific embodiment is respectively provided with following beneficial effect: define uniformly in the centre of circular alternating current electric furnace
Circular molten bath；Owing to having 6 electrodes, therefore, it is possible to use 3 single-phase transformers 40, thus effectively expand the electricity of electric furnace
Power.
The circular electric furnace that the embodiment of this utility model second aspect provides, including as any one of first aspect embodiment
The electrode arrangement of circular electric furnace.
The circular electric furnace that the embodiment of this utility model second aspect provides, arbitrary because being provided with in first aspect embodiment
The electrode arrangement of the circular electric furnace of item, thus effectively expand the electrical power of circular electric furnace, and can be formed uniform
Circular molten bath, is beneficial to the control of charging, the most also extends the service life of furnace wall 30, improves the safety of circular electric furnace
And durability.
In sum, the arrangement of the circular electric furnace that this utility model provides, including 2n electrode and n single-phase transformation
Device, and n >=2, i.e. include that at least 4 electrodes and 2 single-phase transformers, a single-phase transformer connect two electrodes, thus have
Effect ground adds the quantity of electrode and the quantity of transformator in circle electric furnace, can only arrange 3 in having broken typical round electric furnace
Electrode and the restriction of a transformator, and then effectively expand the electrical power of circular electric furnace.
In this utility model, term " first ", " second " are only used for the purpose described, and it is not intended that indicate or dark
Show relative importance；Term " multiple " then refers to two or more, unless otherwise clear and definite restriction.Term " is installed ", " phase
Even ", " connection ", the term such as " fix " all should be interpreted broadly, such as, " connection " can be to fix connection, it is also possible to is removable
Unload connection, or be integrally connected；" being connected " can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.For ability
For the those of ordinary skill in territory, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In the description of this specification, the description of term " embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that the specific features, structure, material or the feature that combine this embodiment or example description are contained in of the present utility model at least one
In individual embodiment or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment
Or example.And, the specific features of description, structure, material or feature can be in any one or more embodiments or examples
In combine in an appropriate manner.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (13)
1. the electrode arrangement of a circular electric furnace, it is characterised in that including:
2n electrode；With
N single-phase transformer, single-phase transformer described in includes two outfans, 2n described electrode described list individual with n respectively
The outfan of phase transformer is connected；
Wherein, n is integer, and n >=2.
The electrode arrangement of circular electric furnace the most according to claim 1, it is characterised in that
N is 3.
The electrode arrangement of circular electric furnace the most according to claim 2, it is characterised in that
Six described electrodes be arranged in parallel along the circumference of described electric furnace.
The electrode arrangement of circular electric furnace the most according to claim 3, it is characterised in that
Six described electrodes are centrally located on same circle, the pole heart circle of described round-formed six described electrodes.
The electrode arrangement of circular electric furnace the most according to claim 4, it is characterised in that
The center of circle of described pole heart circle and the center superposition of the furnace chamber of described electric furnace.
6. according to the electrode arrangement of the circular electric furnace described in claim 4 or 5, it is characterised in that
Two the described electrodes being connected with same described single-phase transformer are in-phase electrodes, and two described electrodes of homophase are adjacent to be set
Put.
The electrode arrangement of circular electric furnace the most according to claim 6, it is characterised in that
Angle between the line in the center of circle of the center of adjacent two described electrodes of out-phase and described pole heart circle is β.
The electrode arrangement of circular electric furnace the most according to claim 7, it is characterised in that
Angle between the line in the center of circle of the center of adjacent two described electrodes of homophase and described pole heart circle is α, and alpha+beta=
120°。
The electrode arrangement of circular electric furnace the most according to claim 8, it is characterised in that
Distance B between the center of adjacent two described electrodes of out-phase with between the center of adjacent two described electrodes of homophase
The ratio B/A of distance A not less than 1.
The electrode arrangement of circular electric furnace the most according to claim 9, it is characterised in that
Distance B between the center of adjacent two described electrodes of out-phase with between the center of adjacent two described electrodes of homophase
The ratio B/A of distance A more than or equal to 1.1 and less than or equal to 1.3.
The electrode arrangement of 11. circular electric furnaces according to claim 5, it is characterised in that
Ratio d/D between described pole heart diameter of a circle d and the internal diameter D of described furnace chamber is not more than 0.5.
The electrode arrangement of 12. circular electric furnaces according to claim 11, it is characterised in that
Ratio d/D between described pole heart diameter of a circle d and the internal diameter D of described furnace chamber is more than or equal to 0.25 and is less than or equal to
0.33。
13. 1 kinds of circular electric furnaces, it is characterised in that include the electricity of circular electric furnace as according to any one of claim 1 to 12
Pole arrangement.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509366.6U CN205681653U (en) | 2016-05-30 | 2016-05-30 | Circular electric furnace and electrode arrangement thereof |
| PCT/CN2017/084281 WO2017206700A1 (en) | 2016-05-30 | 2017-05-15 | Circular electric furnace, and electrode arrangement structure thereof |
| KR1020187036891A KR20190009791A (en) | 2016-05-30 | 2017-05-15 | Circular electric furnace and its electrode arrangement structure |
| CA3025378A CA3025378A1 (en) | 2016-05-30 | 2017-05-15 | Circular electric furnace, and electrode arrangement structure thereof |
| AU2017275056A AU2017275056A1 (en) | 2016-05-30 | 2017-05-15 | Circular electric furnace, and electrode arrangement structure thereof |
| US16/304,650 US20190170443A1 (en) | 2016-05-30 | 2017-05-15 | Circular Electric Furnace, and Electrode Arrangement Structure Thereof |
| EP17805645.3A EP3468302A4 (en) | 2016-05-30 | 2017-05-15 | Circular electric furnace, and electrode arrangement structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509366.6U CN205681653U (en) | 2016-05-30 | 2016-05-30 | Circular electric furnace and electrode arrangement thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205681653U true CN205681653U (en) | 2016-11-09 |
Family
ID=57436607
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620509366.6U Withdrawn - After Issue CN205681653U (en) | 2016-05-30 | 2016-05-30 | Circular electric furnace and electrode arrangement thereof |
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| Country | Link |
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| CN (1) | CN205681653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916229A (en) * | 2016-05-30 | 2016-08-31 | 北京中凯宏德科技有限公司 | Circular electric furnace and electrode arrangement structure thereof |
| WO2017206700A1 (en) * | 2016-05-30 | 2017-12-07 | 北京中凯宏德科技有限公司 | Circular electric furnace, and electrode arrangement structure thereof |
-
2016
- 2016-05-30 CN CN201620509366.6U patent/CN205681653U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916229A (en) * | 2016-05-30 | 2016-08-31 | 北京中凯宏德科技有限公司 | Circular electric furnace and electrode arrangement structure thereof |
| WO2017206700A1 (en) * | 2016-05-30 | 2017-12-07 | 北京中凯宏德科技有限公司 | Circular electric furnace, and electrode arrangement structure thereof |
| CN105916229B (en) * | 2016-05-30 | 2019-03-15 | 北京中凯宏德科技有限公司 | Round electric furnace and its electrode arrangement structure |
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