CN106323011A - Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system - Google Patents

Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system Download PDF

Info

Publication number
CN106323011A
CN106323011A CN201610834301.3A CN201610834301A CN106323011A CN 106323011 A CN106323011 A CN 106323011A CN 201610834301 A CN201610834301 A CN 201610834301A CN 106323011 A CN106323011 A CN 106323011A
Authority
CN
China
Prior art keywords
graphite electrode
phase
extruded anisotropic
ferro
anisotropic graphite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610834301.3A
Other languages
Chinese (zh)
Inventor
冯建国
丁洁彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610834301.3A priority Critical patent/CN106323011A/en
Publication of CN106323011A publication Critical patent/CN106323011A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • F27D11/10—Disposition of electrodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0021—Arc heating

Abstract

The invention discloses a three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and a system. Each phase of a transformer secondary-side three-phase wiring terminal is divided into at least two electrode wiring terminals connected in parallel; each electrode wiring terminal is connected with a high-quality extrusion graphite electrode; all high-quality extrusion graphite electrodes penetrate into a furnace from the top part of a furnace cover of a ferroalloy furnace; each two adjacent high-quality extrusion graphite electrodes has different phases; three high-quality extrusion graphite electrodes with different phases are uniformly distributed in an equilateral triangle way; and three-phase multiple high-quality extrusion graphite electrodes are uniformly and reasonably distributed in the furnace to transmit power for working, so that a high-temperature melting area in the furnace and an area for producing ferroalloy liquid through reduction reaction are enlarged, coverage areas are mutually crossed, overlapped and connected, the ferroalloy liquid can be discharged easily, the electric energy and the electrode consumption are greatly saved, and the safety accidents caused by the product quality problem of conductive electrodes are completely eradicated.

Description

Three-phase Duo Gen extruded anisotropic graphite electrode lay-out's ferro-alloy furnace power transmission smelting process and system
Technical field:
The present invention relates to a kind of graphite electrode application Large Copacity ferroalloy burried arc furnace smelting process, particularly relate to a kind of three-phase many Root graphite electrode layout Large Copacity ferro-alloy furnace power transmission smelting process and system.
Background technology:
Ferroalloy smelting industry also major part uses self-baking electrode power supply mode at present, and self-baking electrode electrode paste belongs to charcoal element primary and produces Product.Reducing discharging policy guidance according to national energy-saving, this production technology should belong to control developmental pattern, and self-baking electrode there will be aborning Soft disconnected, stream oil, segregation, hard disconnected, crackle, fall the accidents such as block, burning, hanging, the softest disconnected and oily fire hazard of stream and quick-fried Fried, directly threaten operator and equipment safety.Past due to extruding big specification φ of high-quality 600～φ 800mm graphite electrode because of Technology complexity causes expensive, and everybody merely desires to promote and uses low side major diameter carbon electrode φ 1020～φ 1400mm to answer It is used on high efficiency, Large Copacity 20000KVA～40000KVA ferro-alloy furnace application.Present domestic employing more than 30MN is large-scale to be squeezed Press, large-scale LWG be serial graphitized and machining system produce high-quality φ 600～φ 800mm graphite electrode technology the most not Restricted and moderate.This kind of electrode relative to the had even structure of other electrode, good conductivity, high-density high-strength, bear The high and low ash of electric current density grades feature performance benefit.If the three-phase six roots of sensation or many of three-phase extruding φ 600～φ 800mm Gao Pin can be used Matter extruded anisotropic graphite electrode is applied on Large Fe alloying furnace, not only can thoroughly stop the safety responsibility caused because of product quality problem Accident, also can meet ferroalloy smelting to Large Copacity, efficiently, energy-saving and emission-reduction, safety and environmental protection direction develop.
Summary of the invention:
The technical problem to be solved is: overcome the deficiencies in the prior art, it is provided that a kind of reasonable in design, energising cross section increasing Greatly, very big saves energy and consumption of electrode, conduct electricity very well and safety is high three-phase Duo Gen extruded anisotropic graphite electrode lay-out ferrum closes Gold stove power transmission smelting process and system.
The technical scheme is that
A kind of three-phase Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting process, comprises the following steps:
A, each phase of Circuit Fault on Secondary Transformer three-phase terminal is divided at least two electrode terminal parallel with one another, Mei Yisuo State electrode terminal to be connected with a post high-quality extruded anisotropic graphite electrode respectively；Or, by Circuit Fault on Secondary Transformer three-phase terminal phase Same polarity be divided at least two groups, each group is connected with a post high-quality extruded anisotropic graphite electrode respectively；
B, according to the diameter of high-quality extruded anisotropic graphite electrode described in the Capacity Selection of ferro-alloy furnace and quantity, by all of described height Quality extruded anisotropic graphite electrode pierces in stove from the bell top of ferro-alloy furnace, and, adjacent described high-quality extruded anisotropic graphite electricity Pole not homophase, three out of phase described high-quality extruded anisotropic graphite electrodes use equilateral triangle to be uniformly distributed setting；
Many of c, three-phase described high-quality extruded anisotropic graphite electrode is uniform rational deployment transmission of electricity acting in stove, expands the high temperature in stove Fusion zone and reduction reaction produce the region of ferroalloy liquid, melting kettle under many electrodes, and the area of coverage overlap that intersects is passed through Logical, ferroalloy liquid is easily discharged, very big saves energy and consumption of electrode.
Described high-quality extruded anisotropic graphite electrode uses a whole set of big specification ultra high power graphite electrode manufacturing process system processing Forming, its critical process point is selected raw material, die mould technique and graphitization technique, and described die mould technique uses four-part form siccative to add Heat, kneading, cool material, samming process system enter back into more than 30MN extruder operation and carry out extruding production；Described graphite chemical industry Skill uses power transmission electric current density >=30A/cm2The serial graphitized production method of large-scale LWG.
The technical target of the product of described high-quality extruded anisotropic graphite electrode GHP-I is: resistivity 7～9 Ω m, bulk density 1.62～1.70 g/cm3, rupture strength 6～9 MPa, elastic modelling quantity 6～10 GPa, thermal coefficient of expansion CTE(0～600 DEG C) 1.5～2.4 × 10-6/ DEG C, ash≤0.3%, it is allowed to electric current density ＜ 12 A/cm2；Or, described high-quality extruded anisotropic graphite electricity The technical target of the product of pole GHP-II is: resistivity 5～7 Ω m, bulk density 1.70～1.77 g/cm3, rupture strength 9 ～14 MPa, elastic modelling quantity 8～14 GPa, thermal coefficient of expansion CTE(0～600 DEG C) 1.2～2.0 × 10-6/ DEG C, ash≤ 0.15%, it is allowed to electric current density ＜ 20 A/cm2；When described ferro-alloy furnace capacity is 20000～30000KVA, described high-quality is squeezed A diameter of Φ 600～φ 700mm and the quantity of pressure graphite electrode are 6；Described ferro-alloy furnace capacity is 30000～40000KVA Time, a diameter of Φ 700～φ 800mm and the quantity of described high-quality extruded anisotropic graphite electrode are 6；Described ferro-alloy furnace capacity is When 40000～60000KVA, a diameter of Φ 600～φ 800mm and the quantity of described high-quality extruded anisotropic graphite electrode are 9.
Each phase of described Circuit Fault on Secondary Transformer three-phase terminal is divided into two, three, four or five parallel with one another Electrode terminal, in the stove of described ferro-alloy furnace, shape is circular, tetragon or the limit number polygon more than four.
Three-phase six roots of sensation graphite electrode lays respectively on the summit of two equilateral triangles varied in size, and, little positive three The summit of dihedral is positioned on three midpoints, limit of big equilateral triangle, or, three-phase six roots of sensation graphite electrode is uniformly distributed along the circumference and meta On the summit of two equilateral triangles；Three-phase nine root graphite electrode is uniformly distributed along the circumference and is positioned at the summit of three equilateral triangles On, or, three-phase nine root graphite electrode uses the circle that waits of two mutual handing-over to arrange, and one of them circle is evenly equipped with six graphite Electrode；Three-phase 12 root graphite electrode uses the circle that waits of three mutual handing-over to arrange, and each circle is evenly equipped with six graphite electricity Pole.
A kind of three-phase Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting system, including ferro-alloy furnace, described ferrum Being provided with bell on alloying furnace, each phase of Circuit Fault on Secondary Transformer three-phase terminal is divided at least two electrodes parallel with one another to connect Line end, each described electrode terminal is connected with a post high-quality extruded anisotropic graphite electrode respectively；Or, by Circuit Fault on Secondary Transformer three Connect at least two groups that are divided into of line end identical polar, and each group is connected with a post high-quality extruded anisotropic graphite electrode respectively；According to ferrum The diameter of high-quality extruded anisotropic graphite electrode described in the Capacity Selection of alloying furnace and quantity, all of described high-quality extruded anisotropic graphite electricity Pole is pierced in stove from the bell top of ferro-alloy furnace, and, adjacent described high-quality extruded anisotropic graphite electrode not homophase, three are not The described high-quality extruded anisotropic graphite electrode of homophase uses equilateral triangle to be uniformly distributed setting；Many described high-quality extruding of three-phase Graphite electrode is uniform rational deployment transmission of electricity acting in stove, expands the high temperature melting district in stove and reduction reaction produces ferroalloy liquid The region of body, melting kettle under many electrodes, the area of coverage intersects overlapping through, and ferroalloy liquid is easily discharged, and greatly saves About electric energy and consumption of electrode.
The invention has the beneficial effects as follows:
1, due to the fact that the electric furnace power delivery structure of many high-quality extruded anisotropic graphite electrodes of employing, energising cross section increase, Large Copacity The region that production easily makes the high temperature melting district in smelting furnace and reduction reaction produce ferroalloy liquid is expanded, many electrodes Lower melting kettle, the area of coverage intersects overlapping through, and ferroalloy liquid is easily discharged, and can greatly saves energy and electrode disappear Consumption, and protect electric furnace stable, high yield in a long time, low consumption, increase substantially economic benefit.
2, the present invention is because using high-quality extruded anisotropic graphite electrode, and High anti bending strength couples advantages such as conducting electricity very well, also has Easily use the various power supply parameters change in stove of automatization's regulation electrode, be prevented effectively from material accident of collapsing and occur, can thoroughly shut out The industrial accident caused because of product quality absolutely.
3, high-quality extruded anisotropic graphite electrode of the present invention uses a whole set of big specification ultra high power graphite electrode manufacturing process system Process, its critical process point: selected raw material, die mould technique and graphitization technique.Die mould technique uses four-part form siccative to add Heat, kneading, cool material, samming process system enter back into more than 30MN extruder operation and carry out extruding production；Graphitization technique is adopted With power transmission electric current density >=30A/cm2The serial graphitized production method of large-scale LWG, thus high-quality extruded anisotropic graphite electrode is relative In the had even structure of other electrode, good conductivity, high-density high-strength, bear the high and low ash of electric current density and grade feature performance benefit.
4, the present invention selects diameter and the quantity of high-quality extruded anisotropic graphite electrode according to ferro-alloy furnace capacity, can be abundant Utilize effect of high-quality extruded anisotropic graphite electrode, again can energy efficient.
5, the present invention uses the three-phase six roots of sensation or many of three-phase extruding φ 600～φ 800mm high-quality extruded anisotropic graphite electrode to exist On Large Fe alloying furnace apply, not only can thoroughly stop because of product quality produce fracture, ftracture, fall block, oxidation etc. safety duty Having a job former, also can meet ferroalloy smelting and develop to Large Copacity, high-efficiency low energy consumption, energy-saving and emission-reduction direction, it is applied widely, easily In promotion and implementation, economic benefit is obvious.
Accompanying drawing illustrates:
Fig. 1 is one of the three-phase six roots of sensation of the present invention extruding large-size graphite electrode plane arrangement structure figure；
Fig. 2 is the two of the three-phase six roots of sensation of the present invention extruding large-size graphite electrode plane arrangement structure figure；
Fig. 3 is one of three-phase of the present invention nine extruding large-size graphite electrode plane arrangement structure figure；
Fig. 4 is the two of three-phase of the present invention nine extruding large-size graphite electrode plane arrangement structure figure；
Fig. 5 is that three-phase of the present invention 12 extrudes large-size graphite electrode plane arrangement structure figure.
Detailed description of the invention:
Embodiment: see Fig. 1 Fig. 5, in figure, A, B, C represents the three-phase of transformator, and A1-A4 represents the different graphite electricity of A phase Pole, B1-B4 represents the different graphite electrodes of B phase, and C1-C4 represents the different graphite electrodes of C phase.
Three-phase Duo Gen extruded anisotropic graphite electrode lay-out's ferro-alloy furnace power transmission smelting process and system, its technical scheme is:
A, each phase of Circuit Fault on Secondary Transformer three-phase terminal is divided at least two electrode terminal parallel with one another, Mei Yi electricity Pole terminals are connected with a high-quality extruded anisotropic graphite electrode (abbreviation graphite electrode) respectively；Or, by Circuit Fault on Secondary Transformer three Connect at least two groups that are divided into of line end identical polar, and each group is connected with a post high-quality extruded anisotropic graphite electrode respectively；
B, according to the diameter of high-quality extruded anisotropic graphite electrode described in the Capacity Selection of ferro-alloy furnace and quantity, by all of high-quality Extruded anisotropic graphite electrode pierces in stove from the bell top of ferro-alloy furnace, and, adjacent high-quality extruded anisotropic graphite electrode not homophase, Three out of phase high-quality extruded anisotropic graphite electrodes use equilateral triangle to be uniformly distributed setting；
Many high-quality extruded anisotropic graphite electrodes of c, three-phase are uniform rational deployment transmission of electricity acting in stove, expands the high temperature melting in stove District and reduction reaction produce the region of ferroalloy liquid, melting kettle under many electrodes, and the area of coverage intersects overlapping through, ferrum Alloy liquid is easily discharged, very big saves energy and consumption of electrode.
High-quality extruded anisotropic graphite electrode uses a whole set of big specification ultra high power graphite electrode manufacturing process system to process, Its critical process point is selected raw material, die mould technique and graphitization technique, die mould technique use the heating of four-part form siccative, kneading, Cool material, samming process system enter back into more than 30MN extruder operation and carry out extruding production；Graphitization technique uses power transmission electricity Current density >=30A/cm2The serial graphitized production method of large-scale LWG.
Each phase of Circuit Fault on Secondary Transformer three-phase terminal is divided into two, three, four or five electrodes parallel with one another Terminals, in the stove of ferro-alloy furnace, shape is circular, tetragon or the limit number polygon more than four.
Three-phase six roots of sensation graphite electrode lays respectively on the summit of two equilateral triangles varied in size, and, little positive three The summit of dihedral is positioned on three midpoints, limit of big equilateral triangle, or, three-phase six roots of sensation graphite electrode is uniformly distributed along the circumference and meta On the summit of two equilateral triangles；Three-phase nine root graphite electrode is uniformly distributed along the circumference and is positioned at the summit of three equilateral triangles On, or, three-phase nine root graphite electrode uses the circle that waits of two mutual handing-over to arrange, and one of them circle is evenly equipped with six graphite Electrode；Three-phase 12 root graphite electrode uses the circle that waits of three mutual handing-over to arrange, and each circle is evenly equipped with six graphite electricity Pole.
Many high-quality extruded anisotropic graphite electrodes of three-phase of the present invention are uniform rational deployment transmission of electricity acting in stove, expands in stove High temperature melting district and reduction reaction produce the region of ferroalloy liquid, melting kettle under many electrodes, and the area of coverage intersects heavily Folded through, ferroalloy liquid is easily discharged, very big saves energy and consumption of electrode, and ensures that ferro-alloy furnace is the most steady Fixed, high yield, low consumption, increase substantially economic benefit.
Ferro-alloy furnace uses Different electrodes power supply mode unit consumption, power consumption comparison sheet as shown in table 1:
Table 1
Project Unit consumption (Kg/ ton ferrosilicon) Power consumption (degree electricity/ton ferrosilicon)
Electrode paste 45～60 8000～9000
Big specification carbon electrode Less than 20 7000～8000
Graphite electrode of the present invention 6～12 6000～7000
Ferro-alloy furnace capacity is as shown in table 2 with the corresponding relation of graphite electrode diameter of the present invention and quantity:
Table 2
In The Sub-mergedfurnace of The Ferroalloys (KVA) 20000～30000 30000～40000 40000～60000 60000～100000
Graphite electrode of the present invention (mm) Φ 600～φ 700/6 Φ 700～φ 800/6 Φ 600～φ 800/9 Φ 700～φ 800/12
The technical target of the product of high-quality extruded anisotropic graphite electrode (GHP) of the present invention is as shown in table 3:
Table 3
To old enterprise, when power supply transformator is constant, can use stove Circuit Fault on Secondary Transformer three-phase terminal one phase divide two, Three or four terminals in parallel, in connection stove, three-phase 6,9 or 12 root graphite electrodes are that equilateral triangle galvanic circle is put down Face layout, makes the uniform rational deployment transmission of electricity acting in stove of the many root graphite electrodes of three-phase.
To newly-built In The Sub-mergedfurnace of The Ferroalloys, new upper power supply transformator is also designed to being divided into of secondary connection end identical polar Two groups, three groups or four groups, in connection stove, three-phase 6,9 or 12 root graphite electrodes are equilateral triangle galvanic circle planar cloth Office, makes the uniform rational deployment transmission of electricity acting in stove of the many root graphite electrodes of three-phase.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, all It is based on any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, all still falls within In the range of technical solution of the present invention.

Claims (10)

1. a three-phase Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting process, comprises the following steps:
A, each phase of Circuit Fault on Secondary Transformer three-phase terminal is divided at least two electrode terminal parallel with one another, Mei Yisuo State electrode terminal to be connected with a post high-quality extruded anisotropic graphite electrode respectively；Or, by Circuit Fault on Secondary Transformer three-phase terminal phase Same polarity be divided at least two groups, each group is connected with a post high-quality extruded anisotropic graphite electrode respectively；
B, according to the diameter of high-quality extruded anisotropic graphite electrode described in the Capacity Selection of ferro-alloy furnace and quantity, by all of described height Quality extruded anisotropic graphite electrode pierces in stove from the bell top of ferro-alloy furnace, and, adjacent described high-quality extruded anisotropic graphite electricity Pole not homophase, three out of phase described high-quality extruded anisotropic graphite electrodes use equilateral triangle to be uniformly distributed setting；
Many of c, three-phase described high-quality extruded anisotropic graphite electrode is uniform rational deployment transmission of electricity acting in stove, expands the high temperature in stove Fusion zone and reduction reaction produce the region of ferroalloy liquid, melting kettle under many electrodes, and the area of coverage overlap that intersects is passed through Logical, ferroalloy liquid is easily discharged, very big saves energy and consumption of electrode.
Three-phase the most according to claim 1 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting process, its feature It is: described high-quality extruded anisotropic graphite electrode uses a whole set of big specification ultra high power graphite electrode manufacturing process system to process, Its critical process point is selected raw material, die mould technique and graphitization technique, and described die mould technique uses the heating of four-part form siccative, mixes Pinch, cool material, samming process system enter back into more than 30MN extruder operation and carry out extruding production；Described graphitization technique uses Power transmission electric current density >=30A/cm2The serial graphitized production method of large-scale LWG.
Three-phase the most according to claim 1 and 2 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting process, it is special Levy and be: the technical target of the product of described high-quality extruded anisotropic graphite electrode GHP-I is: resistivity 7～9 Ω m, bulk density 1.62～1.70 g/cm3, rupture strength 6～9 MPa, elastic modelling quantity 6～10 GPa, thermal coefficient of expansion CTE(0～600 DEG C) 1.5～2.4 × 10-6/ DEG C, ash≤0.3%, it is allowed to electric current density ＜ 12 A/cm2；Or, described high-quality extruded anisotropic graphite electricity The technical target of the product of pole GHP-II is: resistivity 5～7 Ω m, bulk density 1.70～1.77 g/cm3, rupture strength 9 ～14 MPa, elastic modelling quantity 8～14 GPa, thermal coefficient of expansion CTE(0～600 DEG C) 1.2～2.0 × 10-6/ DEG C, ash≤ 0.15%, it is allowed to electric current density ＜ 20 A/cm2；When described ferro-alloy furnace capacity is 20000～30000KVA, described high-quality is squeezed A diameter of Φ 600～φ 700mm and the quantity of pressure graphite electrode are 6；Described ferro-alloy furnace capacity is 30000～40000KVA Time, a diameter of Φ 700～φ 800mm and the quantity of described high-quality extruded anisotropic graphite electrode are 6；Described ferro-alloy furnace capacity is When 40000～60000KVA, a diameter of Φ 600～φ 800mm and the quantity of described high-quality extruded anisotropic graphite electrode are 9.
Three-phase the most according to claim 1 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting process, its feature It is: each phase of described Circuit Fault on Secondary Transformer three-phase terminal is divided into two, three, four or five electrodes parallel with one another to connect Line end, in the stove of described ferro-alloy furnace, shape is circular, tetragon or the limit number polygon more than four.
Three-phase the most according to claim 4 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting process, its feature It is: three-phase six roots of sensation graphite electrode lays respectively on the summit of two equilateral triangles varied in size, and, little equilateral triangle Summit is positioned on three midpoints, limit of big equilateral triangle, or, three-phase six roots of sensation graphite electrode is uniformly distributed along the circumference and is positioned at two On the summit of equilateral triangle；Three-phase nine root graphite electrode is uniformly distributed along the circumference and is positioned on the summit of three equilateral triangles, or, Three-phase nine root graphite electrode uses the circle that waits of two mutual handing-over to arrange, and one of them circle is evenly equipped with six graphite electrodes；Three 12 root graphite electrodes use the circle that waits of three mutual handing-over to arrange mutually, and each circle is evenly equipped with six graphite electrodes.
6. a three-phase Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting system, including ferro-alloy furnace, described ferrum closes Gold stove on be provided with bell, it is characterized in that: each phase of Circuit Fault on Secondary Transformer three-phase terminal be divided at least two parallel with one another Electrode terminal, each described electrode terminal is connected with a post high-quality extruded anisotropic graphite electrode respectively；Or, by transformator Secondary side three-phase terminal identical polar be divided at least two groups, each group is respectively with a post high-quality extruded anisotropic graphite electrode even Connect；Diameter according to high-quality extruded anisotropic graphite electrode described in the Capacity Selection of ferro-alloy furnace and quantity, all of described high-quality Extruded anisotropic graphite electrode pierces in stove from the bell top of ferro-alloy furnace, and, adjacent described high-quality extruded anisotropic graphite electrode is not Homophase, three out of phase described high-quality extruded anisotropic graphite electrodes use equilateral triangle to be uniformly distributed setting；Many institutes of three-phase State the uniform rational deployment transmission of electricity acting in stove of high-quality extruded anisotropic graphite electrode, expand the high temperature melting district in stove and reduction reaction Producing the region of ferroalloy liquid, melting kettle under many electrodes, the area of coverage intersects overlapping through, and ferroalloy liquid is easily Discharge, very big saves energy and consumption of electrode.
Three-phase the most according to claim 6 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting system, its feature It is: described high-quality extruded anisotropic graphite electrode uses a whole set of big specification ultra high power graphite electrode manufacturing process system to process, Its critical process point is selected raw material, die mould technique and graphitization technique, and described die mould technique uses the heating of four-part form siccative, mixes Pinch, cool material, samming process system enter back into more than 30MN extruder operation and carry out extruding production；Described graphitization technique uses Power transmission electric current density >=30A/cm2The serial graphitized production method of large-scale LWG.
8., according to the three-phase Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting system described in claim 6 or 7, it is special Levy and be: the technical target of the product of described high-quality extruded anisotropic graphite electrode GHP-I is: resistivity 7～9 Ω m, bulk density 1.62～1.70 g/cm3, rupture strength 6～9 MPa, elastic modelling quantity 6～10 GPa, thermal coefficient of expansion CTE(0～600 DEG C) 1.5～2.4 × 10-6/ DEG C, ash≤0.3%, it is allowed to electric current density ＜ 12 A/cm2；Or, described high-quality extruded anisotropic graphite electricity The technical target of the product of pole GHP-II is: resistivity 5～7 Ω m, bulk density 1.70～1.77 g/cm3, rupture strength 9 ～14 MPa, elastic modelling quantity 8～14 GPa, thermal coefficient of expansion CTE(0～600 DEG C) 1.2～2.0 × 10-6/ DEG C, ash≤ 0.15%, it is allowed to electric current density ＜ 20 A/cm2；When described ferro-alloy furnace capacity is 20000～30000KVA, described high-quality is squeezed A diameter of Φ 600～φ 700mm and the quantity of pressure graphite electrode are 6；Described ferro-alloy furnace capacity is 30000～40000KVA Time, a diameter of Φ 700～φ 800mm and the quantity of described high-quality extruded anisotropic graphite electrode are 6；Described ferro-alloy furnace capacity is When 40000～60000KVA, a diameter of Φ 600～φ 800mm and the quantity of described high-quality extruded anisotropic graphite electrode are 9.
Three-phase the most according to claim 6 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting system, its feature It is: each phase of described Circuit Fault on Secondary Transformer three-phase terminal is divided into two, three, four or five electrodes parallel with one another to connect Line end, in the stove of described ferro-alloy furnace, shape is circular, tetragon or the limit number polygon more than four.
Three-phase the most according to claim 9 Duo Gen extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting system, its feature It is: three-phase six roots of sensation graphite electrode lays respectively on the summit of two equilateral triangles varied in size, and, little equilateral triangle Summit is positioned on three midpoints, limit of big equilateral triangle, or, three-phase six roots of sensation graphite electrode is uniformly distributed along the circumference and is positioned at two On the summit of equilateral triangle；Three-phase nine root graphite electrode is uniformly distributed along the circumference and is positioned on the summit of three equilateral triangles, or, Three-phase nine root graphite electrode uses the circle that waits of two mutual handing-over to arrange, and one of them circle is evenly equipped with six graphite electrodes；Three 12 root graphite electrodes use the circle that waits of three mutual handing-over to arrange mutually, and each circle is evenly equipped with six graphite electrodes.
CN201610834301.3A 2016-09-21 2016-09-21 Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system Pending CN106323011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610834301.3A CN106323011A (en) 2016-09-21 2016-09-21 Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610834301.3A CN106323011A (en) 2016-09-21 2016-09-21 Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system

Publications (1)

Publication Number Publication Date
CN106323011A true CN106323011A (en) 2017-01-11

Family

ID=57787745

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610834301.3A Pending CN106323011A (en) 2016-09-21 2016-09-21 Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system

Country Status (1)

Country Link
CN (1) CN106323011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578708A (en) * 2020-05-07 2020-08-25 许昌开炭炭素有限公司 Ring type roasting furnace for roasting graphite electrode

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1278592A (en) * 2000-06-16 2001-01-03 王维民 Power-saving electric smelting furnace with six electrodes
CN2607712Y (en) * 2003-02-11 2004-03-24 王敏忠 Three-phase seven-set electrode device for yellow phosphorus electric furnace
CN102310463A (en) * 2011-06-03 2012-01-11 河南三力炭素制品有限公司 System and method for producing graphite electrode pressed four-process temperature equalized paste
CN203719425U (en) * 2014-01-10 2014-07-16 嵩明县汇成冶金设备制造厂 Multi-electrode submerged arc furnace
CN206430573U (en) * 2016-09-21 2017-08-22 冯建国 Many extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting systems of three-phase

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1278592A (en) * 2000-06-16 2001-01-03 王维民 Power-saving electric smelting furnace with six electrodes
CN2607712Y (en) * 2003-02-11 2004-03-24 王敏忠 Three-phase seven-set electrode device for yellow phosphorus electric furnace
CN102310463A (en) * 2011-06-03 2012-01-11 河南三力炭素制品有限公司 System and method for producing graphite electrode pressed four-process temperature equalized paste
CN203719425U (en) * 2014-01-10 2014-07-16 嵩明县汇成冶金设备制造厂 Multi-electrode submerged arc furnace
CN206430573U (en) * 2016-09-21 2017-08-22 冯建国 Many extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting systems of three-phase

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
冯建国: "适用于电弧炉炼钢的UHP石墨电极生产技术路径分析", 《炭素技术》 *
彭元洪: "三相六根石墨电极在7500t／a和10000 t／a黄磷电炉装置的研究与应用", 《湖北化学化工学会2006年年会暨循环经济专家论坛论文集》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578708A (en) * 2020-05-07 2020-08-25 许昌开炭炭素有限公司 Ring type roasting furnace for roasting graphite electrode
CN111578708B (en) * 2020-05-07 2021-09-24 河南福兴新材料科技有限公司 Ring type roasting furnace for roasting graphite electrode

Similar Documents

Publication Publication Date Title
CN102162055B (en) Method for preparing a tungsten-copper composite material with high arc ablation resistance
CN103352136B (en) Copper-base contact material and manufacture craft
CN104129788B (en) A kind of start up system of polycrystalline silicon reducing furnace
CN106323011A (en) Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system
CN102078994B (en) Tin soldering heater for superconducting conductor joint
CN203132321U (en) Six-electrode alternating-current submerged arc furnace
CN206430573U (en) Many extruded anisotropic graphite electrode lay-out ferro-alloy furnace power transmission smelting systems of three-phase
CN206430572U (en) Many extruding large-size graphite electrode layout furnace of calcium carbide power transmission smelting systems of three-phase
CN106231714A (en) Three-phase Duo Gen extruded anisotropic graphite electrode lay-out's furnace of calcium carbide power transmission smelting process and system
CN106312252B (en) Overcome method of the magnetic field to arc magnetic blow
CN202955987U (en) Direct current (DC) ore-smelting electric furnace with changeable return circuit
CN101746761B (en) Method for welding silicon cores
CN106197037A (en) Many extruded anisotropic graphite electrode metal-silicon furnace power transmission smelting processes of three-phase and system
CN207320365U (en) Copper-Aluminum compound welds wire connection terminal
CN206590901U (en) Many extruding large-size graphite electrode layout Large Copacity Yellow phosphorus furnace smelting systems of three-phase
CN203794770U (en) Electrode cooler of bottom plugging type electrode melting furnace
CN103922562A (en) Electrode cooler for bottom-plug electrode melting furnace
CN210321181U (en) Energy-saving efficient carbon tube furnace
CN106350692A (en) Method for preparing silver nickel oxides by silver-nickel alloy waste materials
CN2414063Y (en) Interlinked inner heating graphitizing furnace
CN103105053B (en) Six phase electrode alternating submerged arc furnace
CN208190948U (en) A kind of graphene unsteady flow Electric radiant Heating Film
CN103896261A (en) Processing method of graphite electrodes
CN1846923B (en) Single-phase energy-saving DC electric welder
CN2555488Y (en) Yellow phosphorus electric furnace

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170111

RJ01 Rejection of invention patent application after publication