CN105916229B - Round electric furnace and its electrode arrangement structure - Google Patents
Round electric furnace and its electrode arrangement structure Download PDFInfo
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- CN105916229B CN105916229B CN201610371588.0A CN201610371588A CN105916229B CN 105916229 B CN105916229 B CN 105916229B CN 201610371588 A CN201610371588 A CN 201610371588A CN 105916229 B CN105916229 B CN 105916229B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
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Abstract
The present invention provides a kind of round electric furnace and its electrode arrangement structures, the electrode arrangement structure of the circle electric furnace includes: 2n electrode and n single-phase transformer, one single-phase transformer includes two output ends, and 2n electrode is connected with the output end of n single-phase transformer respectively；Wherein, n is integer, and n >=2.The electrode arrangement structure of circle electric furnace provided by the invention, including 2n electrode and n single-phase transformer, and n >=2, it include at least four electrode and 2 single-phase transformers, one single-phase transformer connects two electrodes, to effectively increase the quantity of the quantity of electrode and transformer in round electric furnace, the limitation that 3 electrodes and a transformer can only be set in typical round electric furnace is broken, and then effectively expand the electrical power of round electric furnace.
Description
Technical field
The present invention relates to smelting equipment technical field, a kind of electrode arrangement structure in particular to round electric furnace and
Round electric furnace including the electrode arrangement structure.
Background technique
Currently, typical round metallurgy alternating current electric furnace or electric furnace arrangement for producing steel are all three electrodes of setting, three electrode centers
Line formed an equilateral triangle.This electrode arrangement structure has the disadvantages that and 1) limited by electrode diameter size,
Current strength is just restricted, can not expand at bottlenecks, the transformer size of the metallurgical electric furnace of three electrodes；2) three
In the round metallurgical electric furnace of a electrode, due to the generation of induced electricity magnetic force, electric arc repels each other, and position is biased to by center of electric furnace and electricity
Pole center line connecting direction, therefore a blossom type molten bath is formed, it is unfavorable for the control of charging.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of electricity of round electric furnace
Pole arragement construction.
It is another object of the present invention to provide a kind of round electric furnaces including above-mentioned electrode arrangement structure.
To achieve the goals above, the embodiment of first aspect present invention provides a kind of electrode arrangement knot of round electric furnace
Structure, comprising: 2n electrode；With n single-phase transformer, a single-phase transformer includes two output ends, the 2n electrodes
It is connected respectively with the output end of the n single-phase transformers；Wherein, n is integer, and n >=2.
The electrode arrangement structure for the round electric furnace that the embodiment of first aspect present invention provides, including 2n electrode and n
Single-phase transformer, and n >=2, that is, include at least four electrode and 2 single-phase transformers, and a single-phase transformer connects two electricity
Break in typical round electric furnace only to effectively increase the quantity of the quantity of electrode and transformer in round electric furnace pole
The limitation of 3 electrodes and a transformer can be set, and then effectively expand the electrical power of round electric furnace.
In addition, the electrode arrangement structure of the round electric furnace in above-described embodiment provided by the invention can also have it is following attached
Add technical characteristic:
In the above-mentioned technical solutions, 3 n.
N is 3, i.e., the electrode arrangement structure of the circle electric furnace includes 6 electrodes and 3 single-phase transformers, due to a list
Phase transformer connect two electrodes, therefore two electrodes being connected with same single-phase transformer be in-phase electrodes, by electric current be
In-phase current, then 6 electrodes and 3 single-phase transformers form the electrode arrangement structure of 3 phase, 6 electrode, can pass through three-phase alternating current
Power, since current strength and time are sine relations, so three-phase alternating current can effectively average current intensity, make shape
At molten bath it is more uniform.Certainly, it will be understood by those of skill in the art that according to the size in circular electric furnace interior space,
The electrode arrangement structure of the forms such as 2 single-phase transformers and 4 electrodes, 4 single-phase transformers and 8 electrodes can be set, only
It wants that there is enough spaces in furnace chamber, these electrodes can be accommodated, can play the mesh of enlarged rounded electric furnace electrical power
, and all without departing from design philosophy and objective of the invention, therefore be within the scope of the invention.
In any of the above-described technical solution, six electrodes are arranged in parallel along the circumference of the electric furnace.
In any of the above-described technical solution, the center of six electrodes is located on the same circle, and the circle forms six
The pole heart circle of the electrode.
In any of the above-described technical solution, the center of circle of the pole heart circle is overlapped with the center of the furnace chamber of the electric furnace.
Six electrodes are arranged in parallel along the circumferencial direction of electric furnace, then the molten bath that six electrodes are formed is also along the circumferential direction of electric furnace point
Cloth, so the molten bath in furnace chamber is relatively uniform, then the load that furnace wall is subject to is also relatively uniform, at some position
Furnace wall because high-temperature melt flow washes away it is serious due to be badly damaged the case where, effectively extend the service life of furnace wall, Jin Erti
The safety of high round electric furnace and durability；Further, the center of six electrodes is located on the same circle, forms the pole heart
Circle, so that the shape in molten bath is more nearly circle in furnace chamber, thus molten bath is more uniform, and the load that furnace wall is subject to is also more
Uniformly；Preferably, the center of circle of pole heart circle is overlapped with the center of the furnace chamber of electric furnace, in this way, molten bath can be in the centre of furnace chamber
It is formed, to be further ensured that the uniformity of round electric furnace furnace wall load, further improves the safety of round electric furnace and resistance to
Long property.
It is to be understood that electric arc trend and the safety of molten bath flowing and furnace wall have greatly in open arc smelting system
Relationship.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；But if voltage is high, electric arc can be very long, and electric arc tail can burn out corresponding furnace wall sometimes.Therefore domestic smelting
Golden furnace is usually all avoided using high voltage operation.But if low voltage operating, it is dynamic that high current will cause strong electric arc
Amount impacts weld pool surface towards furnace wall direction, so that the slag of excessive temperature flows to furnace wall；If blanking is uneven, furnace wall easily by
Erosion failure.Therefore the arrangement of electrode is extremely important, not only influences the formation in molten bath, also influences the trend of electric arc, molten to molten bath
The influence of stream is very big.
In any of the above-described technical solution, two electrodes being connected with the same single-phase transformer are with mutually electricity
Pole, two electrodes with phase are disposed adjacent.
Two electrodes of same phase are disposed adjacent, the electrode arrangement structure of 3 phase, 6 electrode is on the one hand made to be equivalent to three solely
Vertical single-phase electricfurnace is close to, and centre is not provided with furnace wall interval, is shared molten bath, is effectively increased the electric work of single electric furnace in this way
Rate；On the other hand the case where causing power factor (PF) to be greatly lowered arranged in a crossed manner of causing to influence each other between out-phase electrode is also avoided
Occur.It is to be understood that interacting between each phase if two electrodes with phase are arranged in a crossed manner, electric arc trend does not have
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 solution, the center of circle of the center of adjacent two electrodes of out-phase and pole heart circle
Angle between line is β.
In any of the above-described technical solution, the center of circle of the center of adjacent two electrodes of same phase and pole heart circle
Angle between line is α, alpha+beta=120 °.
Due to surrounding in circular six electrodes, two electrodes with phase are disposed adjacent, therefore six electrodes form three
The out-phase electrode adjacent to adjacent in-phase electrodes and three pairs, the then line at the center of each pair of adjacent electrode and the round heart of the pole heart
Between be respectively formed an angle, be arranged formed between the center of three pairs of adjacent out-phase electrodes and pole heart circle circle center line connecting here
The angle of three angles is β, is since the electric arc between out-phase electrode is attracting, and the electric arc between in-phase electrodes repels each other, because
Three angles between this three pairs of out-phase electrodes are equal, and the electric arc that six electrodes can be made to generate is opposite and equably along electric furnace
Circumference trend, so as to form a uniform round molten bath.
Further, three angles formed between the center and pole heart circle circle center line connecting of three pairs of adjacent in-phase electrodes
Angle is α, due to+3 β=360 ° 3 α, therefore alpha+beta=120 °, i.e., the circle at the center of adjacent two electrodes of same phase and pole heart circle
Angle beta between the center of angle [alpha] and adjacent two electrodes of out-phase between the line of the heart and the line in the center of circle of pole heart circle
The sum of be 120 °, then 3 phase, 6 electrode is arranged symmetrically in round electric furnace, so that interfering with each other between three pairs of in-phase electrodes
Also more average, and then the electric arc generated and molten bath are also more symmetrical, it is more uniform, make the furnace wall of melt flow with respect to the circumferential direction all be
The same, to improve the service life of furnace wall, and then improve safety and the durability of round electric furnace.
In any of the above-described technical solution, the distance between adjacent center of two electrodes of out-phase B and adjacent
The ratio B/A of the distance between center with two electrodes of phase A is not less than 1.
In any of the above-described technical solution, the distance between adjacent center of two electrodes of out-phase B and adjacent
The ratio B/A of the distance between center with two electrodes of phase A is more than or equal to 1.1 and is less than or equal to 1.3.
The distance between adjacent center of out-phase electrode the distance between B and the adjacent center of in-phase electrodes A is set
Ratio B/A be not less than 1, i.e., the distance between adjacent center of out-phase electrode B be greater than adjacent in-phase electrodes center it
Between distance A, it is excessively attracting to avoid the electric arc between out-phase electrode, cause local high temperature zone, electric arc averagely received in this way
Between two-phase, make to be capable of forming uniform round molten bath in round electric furnace, in order to the control of charging；Meanwhile electric arc receives two
Between phase, additionally it is possible to the case where avoiding electric arc tail from sweeping to furnace wall generation, so that round electric furnace can be with high voltage operation, with drop
Low electrode loss, while high-temperature melt flow can also be avoided to flow to furnace wall.Preferably, B/A is more than or equal to 1.1 and less than or equal to 1.3,
The uniformity of arc-distribution can be further increased in this way, and then further increases the uniformity coefficient in round molten bath.
Ratio d/D in any of the above-described technical solution, between the pole heart diameter of a circle d and the internal diameter D of the furnace chamber
No more than 0.5.
Ratio d/D in any of the above-described technical solution, between the pole heart diameter of a circle d and the internal diameter D of the furnace chamber
More than or equal to 0.25 and it is less than or equal to 0.33.
The ratio d/D being arranged between pole heart diameter of a circle d and the internal diameter D of furnace chamber 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, the distance between electrode and furnace wall are on the one hand relatively increased in this way, so as to avoid electric arc tail
The case where causing furnace wall to burn out to furnace wall is swept, the intermediate position of furnace chamber on the other hand molten bath can be efficiently controlled in,
It thus avoids high-temperature melt flow and flows to furnace wall furnace wall is caused to wash away impaired situation and occur, this effectively improves the use of furnace wall
Service life, and then improve safety and the durability of round electric furnace.Preferably, d/D is more than or equal to 0.25 and less than or equal to 0.33,
The service life of furnace wall can further be extended in this way, to further increase safety and the durability of round electric furnace.
The embodiment of second aspect of the present invention provides a kind of round electric furnace, including such as any one of first aspect embodiment
The electrode arrangement structure of the round electric furnace.
The round electric furnace that the embodiment of second aspect of the present invention provides, because being provided with any one of first aspect embodiment institute
The electrode arrangement structure for the round electric furnace stated, thus the electrical power of round electric furnace is effectively expanded, and be capable of forming uniform
Round molten bath in favor of the control of charging, while also extending the service life of furnace wall, improve round electric furnace safety and
Durability.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of the electrode arrangement structure of round electric furnace of the present invention.
Wherein, the appended drawing reference in Fig. 1 and the corresponding relationship between component names are as follows:
11 No.1 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.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to round electric furnace and its electrode arrangement structure described in Fig. 1 description according to some embodiments of the invention.
As shown in Figure 1, the electrode arrangement structure for the round electric furnace that the embodiment of first aspect present invention provides, comprising: 2n
A electrode and n single-phase transformer 40.
Specifically, a single-phase transformer 40 includes two output ends, and 2n electrode is defeated with n single-phase transformer 40 respectively
Outlet is connected；Wherein, n is integer, and n >=2.
The electrode arrangement structure for the round electric furnace that the embodiment of first aspect present invention provides, including 2n electrode and n
Single-phase transformer 40, and n >=2 include at least four electrode and 2 single-phase transformers 40, a connection of single-phase transformer 40 two
A electrode has broken typical round electric furnace to effectively increase the quantity of the quantity of electrode and transformer in round electric furnace
The interior limitation that 3 electrodes and a transformer can only be set, and then effectively expand the electrical power of round electric furnace.
In some embodiments of the invention, as shown in Figure 1, n is 3.
In the above-described embodiments, 3 n, i.e. the electrode arrangement structure of the circle electric furnace include 6 electrodes and 3 single-phase changes
Depressor 40, since a single-phase transformer 40 connects two electrodes, therefore two electrodes being connected with same single-phase transformer 40 are
In-phase electrodes, by electric current be electrode cloth that in-phase current, then 6 electrodes and 3 single-phase transformers 40 form 3 phase, 6 electrode
Structure is set, can be powered by three-phase alternating current, since current strength and time are sine relations, so three-phase alternating current can
Effectively average current intensity keeps the molten bath to be formed more uniform.
Certainly, it will be understood by those of skill in the art that also can be set 2 according to the size in circular electric furnace interior space
The electrode arrangement structure of the forms such as a single-phase transformer 40 and 4 electrode, 4 single-phase transformer 40 and 8 electrodes, as long as furnace chamber
It is interior that there is enough spaces, these electrodes can be accommodated, can play the purpose of enlarged rounded electric furnace electrical power, and
Without departing from design philosophy and objective of the invention, therefore it is within the scope of the invention.
Preferably, as shown in Figure 1, six electrodes are arranged in parallel along the circumference of electric furnace.
It is highly preferred that the center of six electrodes is located on the same circle, circle forms the pole heart circle 20 of six electrodes.
It is highly preferred that as shown in Figure 1, the center of circle of pole heart circle 20 is overlapped with the center of the furnace chamber of electric furnace.
Six electrodes are 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 also relatively uniform, so as to avoid some position
The furnace wall 30 at the place of setting because high-temperature melt flow washes away it is serious due to be badly damaged the case where, effectively extend furnace wall 30 uses the longevity
Life, and then improve safety and the durability of round electric furnace；Further, the center of six electrodes is located on the same circle,
Formed the pole heart circle 20, so that the shape in molten bath is more nearly circle in furnace chamber, thus molten bath is more uniform, furnace wall 30 by
Load it is also more uniform；Preferably, the center of circle of pole heart circle 20 is overlapped with the center of the furnace chamber of electric furnace, in this way, molten bath can be
The centre of furnace chamber is formed, to be further ensured that the uniformity of round 30 load of electric furnace furnace wall, further improves circle
The safety of electric furnace and durability.
It is to be understood that electric arc trend and the safety of molten bath flowing and furnace wall 30 have greatly in open arc smelting system
Relationship.In typical round electric furnace, electric arc repels one another, if in order to lower consumption of electrode or significant power operation, it must
Voltage must be improved；But if voltage is high, electric arc can be very long, and electric arc tail can burn out corresponding furnace wall 30 sometimes.Therefore domestic
Metallurgical furnace usually all avoid using high voltage operation.But if low voltage operating, high current will cause strong electric arc
Momentum impacts weld pool surface towards 30 direction of furnace wall, so that the slag of excessive temperature flows to furnace wall 30；If blanking is uneven, furnace wall
30 are easily washed damage.Therefore the arrangement of electrode is extremely important, not only influences the formation in molten bath, also influences the trend of electric arc,
Influence to molten bath melt flow is very big.
In some embodiments of the invention, as shown in Figure 1, two electrodes being connected with same single-phase transformer 40 are same
Phase electrode, two electrodes with phase are disposed adjacent.
In the above-described embodiments, two electrodes of same phase are disposed adjacent, the electrode arrangement of 3 phase, 6 electrode is on the one hand made
Structure is equivalent to three independent single-phase electricfurnaces and is close to, and centre is not provided with the interval of furnace wall 30, shares molten bath, effectively increases in this way
The electrical power of single electric furnace is added；On the other hand also avoid it is arranged in a crossed manner cause to influence each other between out-phase electrode cause power
The case where factor is greatly lowered.It is to be understood that if two electrodes with phase are arranged in a crossed manner, between each phase mutually
It mutually influences, electric arc moves towards no certain rule, it is possible to create a large amount of harmonic waves cause power factor (PF) to be greatly lowered.
In the above-described embodiments, further, as shown in Figure 1, the center of adjacent two electrodes of out-phase and pole heart circle 20
The center of circle line between angle be β.
Further, as shown in Figure 1, the center of adjacent two electrodes of same phase and the pole heart circle 20 the center of circle line it
Between angle be α, alpha+beta=120 °.
Due to surrounding in circular six electrodes, two electrodes with phase are disposed adjacent, therefore six electrodes form three
The out-phase electrode adjacent to adjacent in-phase electrodes and three pairs, then the center of each pair of adjacent electrode and the pole heart justify the company in 20 centers of circle
It is respectively formed an angle between line, shape between the center of three pairs of adjacent out-phase electrodes and the pole heart 20 circle center line connectings of circle is set here
At the angles of three angles be β, be and the electric arc phase between in-phase electrodes since the electric arc between out-phase electrode is attracting
Reprimand, therefore three angles between three pairs of out-phase electrodes are equal, the electric arc that six electrodes can be made to generate is opposite, and equably edge
Electric furnace circumference trend, so as to form a uniform round molten bath.
Further, three angles formed between the center and the pole heart 20 circle center line connectings of circle of three pairs of adjacent in-phase electrodes
Angle be α, due to+3 β=360 ° 3 α, therefore alpha+beta=120 °, i.e., the center of adjacent two electrodes of same phase and pole heart circle 20
The center of circle line between angle [alpha] and adjacent two electrodes of out-phase center and the pole heart circle 20 the center of circle line between
The sum of angle beta is 120 °, then 3 phase, 6 electrode is arranged symmetrically in round electric furnace, so that mutual between three pairs of in-phase electrodes
Interference is also more average, and then the electric arc generated and molten bath are also more symmetrical, more uniform, makes the furnace wall of melt flow with respect to the circumferential direction
30 are the same, to improve the service life of furnace wall 30, and then improve safety and the durability of round electric furnace.
In the above-described embodiments, further, the distance between adjacent center of two electrodes of out-phase B with it is adjacent same
The ratio B/A of the distance between the center of two electrodes of phase A is not less than 1.
Preferably, the center of the distance between adjacent center of two electrodes of out-phase B and adjacent two electrodes of same phase
The distance between A ratio B/A be more than or equal to 1.1 and be less than or equal to 1.3.
The distance between adjacent center of out-phase electrode the distance between B and the adjacent center of in-phase electrodes A is set
Ratio B/A be not less than 1, i.e., the distance between adjacent center of out-phase electrode B be greater than adjacent in-phase electrodes center it
Between distance A, it is excessively attracting to avoid the electric arc between out-phase electrode, cause local high temperature zone, electric arc averagely received in this way
Between two-phase, make to be capable of forming uniform round molten bath in round electric furnace, in order to the control of charging；Meanwhile electric arc receives two
Between phase, additionally it is possible to the case where avoiding electric arc tail from sweeping to furnace wall 30 generation so that round electric furnace can with high voltage operation, with
Export license is reduced, while high-temperature melt flow can also be avoided to flow to furnace wall 30.Preferably, B/A is more than or equal to 1.1 and is less than or equal to
1.3, the uniformity of arc-distribution can be further increased in this way, and then further increases the uniformity coefficient in round molten bath.
In the above-described embodiments, further, the pole heart justifies the ratio d/D between 20 diameter d and the internal diameter D of furnace chamber not
Greater than 0.5.
Preferably, the pole heart circle 20 diameter d and furnace chamber internal diameter D between ratio d/D be more than or equal to 0.25 and be less than etc.
In 0.33.
Ratio d/D between the diameter d of pole heart circle 20 and the internal diameter D of furnace chamber is set no more than 0.5, i.e., pole heart circle 20 is straight
Diameter d is less than the half of furnace chamber internal diameter D, on the one hand relatively increases the distance between electrode and furnace wall 30 in this way, so as to avoid
Electric arc tail sweeps the case where causing furnace wall 30 to burn out to furnace wall 30, on the other hand molten bath can be efficiently controlled in furnace chamber
Intermediate position, thus avoid high-temperature melt flow and flow to furnace wall 30 furnace wall 30 is caused to wash away impaired situation and occur, this is effectively mentioned
The high service life of furnace wall 30, and then improve safety and the durability of round electric furnace.Preferably, d/D is more than or equal to
0.25 and be less than or equal to 0.33, can further extend the service life of furnace wall 30 in this way, to further increase round electric furnace
Safety and durability.
The electrode cloth of the round electric furnace of the present invention is described in detail offer is provided below with reference to some specific embodiments of the present invention
Set structure.
Embodiment one
As shown in Figure 1, the electrode arrangement structure of round electric furnace includes three single-phase transformers 40 and six electrodes；Six electricity
Pole is arranged in parallel along the circumferencial direction of electric furnace；And the center of six electrodes is located on the same circle, that is, is located on pole heart circle 20；Pole
The center of circle of heart circle 20 is overlapped with the center of electric furnace furnace chamber；Two electrodes with phase are disposed adjacent, 11, No. two electrodes 12 of No.1 electrode
The first phase is formed, 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 and the line in 20 centers of circle of pole heart circle is equal, is denoted as α, adjacent out-phase electrode
Angle between center and the line in 20 centers of circle of pole heart circle is equal, is denoted as β, alpha+beta=120 °；The center of adjacent in-phase electrodes it
Between distance be denoted as A, the distance between the center of adjacent out-phase electrode is denoted 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 that the power of each single-phase transformer 40 is 12MVA；The pole heart circle 20 diameter d be
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 that the power of each single-phase transformer 40 is 18MVA；The pole heart circle 20 diameter d be
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 is 69 °.
Example IV
Difference with embodiment one is that the power of each single-phase transformer 40 is 30MVA；The pole heart circle 20 diameter d be
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 is 66 °.
Embodiment five
Difference with embodiment one is that the power of each single-phase transformer 40 is 45MVA；The pole heart circle 20 diameter d be
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 is 69 °.
Embodiment six
Difference with embodiment one is that 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 that 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 all has following the utility model has the advantages that foring uniformly in the centre of round alternating current electric furnace
Round molten bath；Due to having 6 electrodes, 3 single-phase transformers 40 are able to use, to effectively expand the electricity of electric furnace
Power.
The round electric furnace that the embodiment of second aspect of the present invention provides, the circle including any one of such as first aspect embodiment
The electrode arrangement structure of shape electric furnace.
The round electric furnace that the embodiment of second aspect of the present invention provides, because being provided with any one of first aspect embodiment
The electrode arrangement structure of round electric furnace, thus the electrical power of round electric furnace is effectively expanded, and be capable of forming uniform circle
Molten bath in favor of the control of charging, while also extending the service life of furnace wall 30, improves the safety of round electric furnace and resistance to
Long property.
In conclusion the arragement construction of circle electric furnace provided by the invention, including 2n electrode and n single-phase transformer,
And n >=2, that is, it include at least four electrode and 2 single-phase transformers, a single-phase transformer connects two electrodes, thus effectively
The quantity for increasing the quantity of electrode and transformer in round electric furnace, 3 electrodes can only be arranged by having broken in typical round electric furnace
With the limitation of a transformer, and then the electrical power of round electric furnace is effectively expanded.
In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase
To importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, be also possible to detachably connect
It connects, or is integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of electrode arrangement structure of circle electric furnace characterized by comprising
2n electrode；With
N single-phase transformer, a single-phase transformer include two output ends, 2n electrodes respectively with the n lists
The output end of phase transformer is connected；
Wherein, n is integer, and n >=2；
Two electrodes being connected with the same single-phase transformer are in-phase electrodes, adjacent with two electrodes of phase to set
It sets.
2. the electrode arrangement structure of circle electric furnace according to claim 1, which is characterized in that
N is 3.
3. the electrode arrangement structure of circle electric furnace according to claim 2, which is characterized in that
Six electrodes are arranged in parallel along the circumference of the electric furnace.
4. the electrode arrangement structure of circle electric furnace according to claim 3, which is characterized in that
The center of six electrodes is located on the same circle, and the circle forms the pole heart circle of six electrodes.
5. the electrode arrangement structure of circle electric furnace according to claim 4, which is characterized in that
The center of circle of the pole heart circle is overlapped with the center of the furnace chamber of the electric furnace.
6. the electrode arrangement structure of circle electric furnace according to claim 4, which is characterized in that
Angle between the center of adjacent two electrodes of out-phase and the line in the center of circle of pole heart circle is β.
7. the electrode arrangement structure of circle electric furnace according to claim 6, which is characterized in that
Angle between the center of adjacent two electrodes of same phase and the line in the center of circle of pole heart circle is α, and alpha+beta=
120°。
8. the electrode arrangement structure of circle electric furnace according to claim 7, which is characterized in that
Between the distance between the adjacent center of two electrodes of out-phase B and the center of adjacent two electrodes of same phase
Distance A ratio B/A be not less than 1.
9. the electrode arrangement structure of circle electric furnace according to claim 8, which is characterized in that
Between the distance between the adjacent center of two electrodes of out-phase B and the center of adjacent two electrodes of same phase
Distance A ratio B/A be more than or equal to 1.1 and be less than or equal to 1.3.
10. the electrode arrangement structure of circle electric furnace according to claim 5, which is characterized in that
Ratio d/D between the pole heart diameter of a circle d and the internal diameter D of the furnace chamber is not more than 0.5.
11. the electrode arrangement structure of circle electric furnace according to claim 10, which is characterized in that
Ratio d/D between the pole heart diameter of a circle d and the internal diameter D of the furnace chamber is more than or equal to 0.25 and is less than or equal to
0.33。
12. a kind of circle electric furnace, which is characterized in that the electricity including the round electric furnace as described in any one of claims 1 to 11
Pole arragement construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610371588.0A CN105916229B (en) | 2016-05-30 | 2016-05-30 | Round electric furnace and its electrode arrangement structure |
| 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 |
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| CN201610371588.0A CN105916229B (en) | 2016-05-30 | 2016-05-30 | Round electric furnace and its electrode arrangement structure |
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| CN202013104U (en) * | 2011-04-22 | 2011-10-19 | 广西新振锰业集团有限公司 | Double-triangle long circular DC (direct current) submerged arc furnace with six electrodes |
| CN203132321U (en) * | 2013-02-25 | 2013-08-14 | 成都高威节能科技有限公司 | Six-electrode alternating-current submerged arc furnace |
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| CN205681653U (en) * | 2016-05-30 | 2016-11-09 | 北京中凯宏德科技有限公司 | Circular electric furnace and electrode arrangement thereof |
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| CN204425697U (en) * | 2014-12-31 | 2015-06-24 | 云南澄江盘虎化工有限公司 | The just hexagonal distribution of electrode and 180 degree access cables yellow phosphorus furnace short network device |
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| CN202013104U (en) * | 2011-04-22 | 2011-10-19 | 广西新振锰业集团有限公司 | Double-triangle long circular DC (direct current) submerged arc furnace with six electrodes |
| CN203132321U (en) * | 2013-02-25 | 2013-08-14 | 成都高威节能科技有限公司 | Six-electrode alternating-current submerged arc furnace |
| CN203561217U (en) * | 2013-11-26 | 2014-04-23 | 佛山市顺德区万缔福电器有限公司 | Multi-electrode direct current corundum smelting furnace |
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