CN109136464A - Double-station electric arc furnace - Google Patents

Double-station electric arc furnace Download PDF

Info

Publication number
CN109136464A
CN109136464A CN201811273561.3A CN201811273561A CN109136464A CN 109136464 A CN109136464 A CN 109136464A CN 201811273561 A CN201811273561 A CN 201811273561A CN 109136464 A CN109136464 A CN 109136464A
Authority
CN
China
Prior art keywords
electrode
electric arc
double
smelting
bell
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
CN201811273561.3A
Other languages
Chinese (zh)
Inventor
于灏
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.)
Capital Engineering & Research Inc Ltd
Original Assignee
Capital Engineering & Research Inc Ltd
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 Capital Engineering & Research Inc Ltd filed Critical Capital Engineering & Research Inc Ltd
Priority to CN201811273561.3A priority Critical patent/CN109136464A/en
Publication of CN109136464A publication Critical patent/CN109136464A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52Manufacture of steel in electric furnaces
    • C21C5/5252Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52Manufacture of steel in electric furnaces
    • C21C5/527Charging of the electric furnace
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The invention provides a double-station electric arc furnace, which relates to the field of electric arc furnace steelmaking and comprises a flue gas pipeline, an electrode unit and two furnace body units, wherein each furnace body unit is provided with a smelting chamber with an upward opening; the flue gas pipeline is arranged between the two furnace body units and communicated with the two smelting chambers; the electrode unit comprises an electrode moving device and an electrode arranged on the electrode moving device, the electrode moving device comprises an electrode lifting mechanism and an electrode rotating mechanism, the electrode rotating mechanism drives the electrode to reciprocate between the two furnace body units, the electrode lifting mechanism drives the electrode to ascend and descend, and the descended electrode is inserted into a smelting chamber of the furnace body unit below the electrode lifting mechanism. The double-station electric arc furnace provided by the invention has the advantages of small floor area and low investment, and can effectively preheat the scrap steel.

Description

A kind of double-station electric arc furnaces
Technical field
The present invention relates to electric-arc furnace steelmaking field, in particular to a kind of double-station electric arc furnaces.
Background technique
Arc furnace steeling process is quickly grown in recent years, and electric arc furnaces is also more more and more universal in major iron and steel enterprise.For electricity For the steel-making of arc furnace, energy-saving is always the topic that iron and steel enterprise and metallargist are keen to.Energy-saving means are various, Mainly there are electrode automatic adjustment technology, foamed slag smelting technique, reinforcing oxygen technology, electric arc furnace bottom blowing technology, steel scrap pre- at present Thermal technology etc..
Wherein scrap steel preheating technology mainly utilizes high-temperature flue gas preheating scrap, at present more popular scrap steel preheating technology There are mainly two types of forms, and one is Consteel electric furnace (also referred to as Kang Sidi electric arc furnaces), another kind is vertical shaft type electric arc furnaces.
Consteel electric furnace is fed using horizontal continuity, flue gas reverse flow preheating scrap.Consteel feeding section one As be located at the opposite side of transformer, be a longer scrap steel preheating charging band, can use overhead traveling crane that steel scrap is added at its end, lean on Nearly electric furnace part is preheating section, and electric furnace high-temperature flue gas passes through reverse with steel scrap direction of travel when preheating section, high-temperature flue gas and room temperature Steel scrap contact achieve the purpose that scrap steel preheating to save consumption reduction.
The shortcomings that Consteel electric furnace, is also apparent from.To meet normal smelting demand, Consteel charging band need to constantly add Enter steel scrap, this make for the overhead traveling crane operating rate of Consteel electric furnace charging it is excessively high, it is easy to delay normal production;Consteel electricity The flue gas of furnace is from preheating section back through, flue gas and steel scrap time of contact section and insufficient, therefore scrap steel preheating effect is poor, energy conservation The effect that lowers consumption is limited;In addition Consteel electric furnace charging preheating section is generally longer, takes up a large area, and technology arrangement is limited.
The silo system of vertical shaft type electric arc furnaces is located at the top of electric arc furnace body, and steel scrap is charged first in silo system, gives up The high-temperature flue gas generated during steel smelting first passes through the steel scrap in silo system, then scrap steel preheating to higher temperature exists It is discharged by exhaust treatment system.The finger valve that steel scrap in silo system is water cooled is held, after the tapping of previous heat, finger Valve is opened, and the steel scrap in silo system is fallen into electric arc furnaces molten bath.Vertical shaft type electric arc furnaces high-temperature flue gas is from the gap between steel scrap It passes through, flue gas contacts sufficiently with steel scrap, and energy conservation and consumption reduction effects are obvious.
But there are also defects for electric shaft furnace.Electric shaft furnace since silo system is located above electric arc furnace body, This causes device height high, and equipment is excessively huge, and factory building height is high, and equipment investment is big.The finger valve of silo system is used to support Steel scrap, each steel scrap fall into silo system, and finger valve is absorbed impact greatly, is easily damaged, and finger valve uses water cooling, once hair Raw leak, be easy to cause safety accident.
Summary of the invention
The purpose of the present invention is to provide a kind of double-station electric arc furnaces, occupied area is small, investment is low, can effectively preheat useless Steel.
In order to achieve the above objectives, the present invention proposes a kind of double-station electric arc furnaces, wherein the double-station electric arc furnaces includes:
Two shaft units, each shaft unit all have the smelting room of opening upwards;
Flue is arranged between two shaft units and is connected to two smelting rooms;
Electrode unit, including electrode movement device and the electrode being mounted on the electrode movement device, the electrode is moved Dynamic device includes electrode lifting mechanism and electrode rotary mechanism, and the electrode rotary mechanism drives the electrode in two furnaces It is moved back and forth between body unit, the electrode lifting mechanism drives the electrode raising and lowering, and the electrode after decline is inserted The smelting for entering the shaft unit being disposed below is indoor.
Double-station electric arc furnaces as described above, wherein the shaft unit includes furnace shell and furnace bottom, and the furnace shell is vertical The cylindrical body of setting, the furnace bottom are installed in the furnace shell bottom end and are enclosed the smelting of opening upwards with the furnace shell Room.
Double-station electric arc furnaces as described above, wherein the both ends of the flue are respectively fixedly connected in corresponding institute It states on the outer wall of furnace shell, the air through hole with the flue corresponding matching is offered on the furnace shell, the smelting is indoor Flue gas by the air through hole enter the flue.
Double-station electric arc furnaces as described above, wherein control valve, the control valve are also equipped on the flue Door controls the connection and partition of the flue.
Double-station electric arc furnaces as described above, wherein exhaust hole is also provided on the furnace shell, the smelting is indoor Flue gas is discharged by the exhaust hole.
Double-station electric arc furnaces as described above, wherein exhaust pipe is provided with outside the exhaust hole, the smelting room is logical The exhaust pipe is crossed to be connected with off-gas recovery processing unit.
Double-station electric arc furnaces as described above, wherein the shaft unit includes bell, and the bell lid is located at the furnace The smelting room is simultaneously closed in the top of shell, and mounting hole up and down is offered on the bell, and the electrode can be through described Mounting hole.
Double-station electric arc furnaces as described above, wherein the shaft unit further includes bell mobile device, the bell peace In the bell mobile device, it is separate that the bell mobile device drives the bell to be moved to by the top of the furnace shell The holding fix of the furnace shell.
Compared with prior art, the invention has the characteristics that and advantage:
Its electrode of double-station electric arc furnaces proposed by the present invention can move back and forth between two shaft units, in this way, two A shaft unit can work alternatively (alternately smelting operation).Meanwhile flue is again by the smelting room of two shaft units It is connected, in this way, the high-temperature flue gas smelted in room for smelting operation can enter another by flue and smelt room It is interior that wherein steel scrap is preheated, achieve the purpose that energy-saving.
Two shaft unit of double-station electric arc furnaces proposed by the present invention alternately can be smelted and be preheated, in this way, At the end of one of shaft unit tapping, for another shaft unit by scrap steel preheating, electrode movement device moves electrode Moving another shaft unit can start to smelt, and shorten smelting cycle, improve production efficiency.
Compared with existing scrap steel preheating formula electric arc furnaces, double-station electric arc furnaces occupied area proposed by the present invention is small, equipment It is highly low, space and land occupation are saved, cost and investment are also reduced.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is the structural schematic diagram of double-station electric arc furnaces 100 proposed by the present invention;
Fig. 2 is the structural schematic diagram (down position) of electrode movement device in the present invention;
Fig. 3 is the structural schematic diagram (lifting position) of electrode movement device in the present invention;
Fig. 4 is the structural schematic diagram (down position) of bell mobile device in the present invention;
Fig. 5 is the structural schematic diagram (lifting position) of bell mobile device in the present invention.
Description of symbols:
100, double-station electric arc furnaces;10, flue;
20, electrode unit;21, electrode movement device;
211, electrode lifting mechanism;212, electrode rotary mechanism;
30, shaft unit;
31, room is smelted;32, furnace shell;
33, furnace bottom;34, air through hole;
35, bell;36, bell mobile device.
X, the first station;Y, second station.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, details of the invention can clearly be understood.But It is the specific embodiment of invention described herein, purpose for explaining only the invention, and cannot understand in any way At being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention Shape, these are regarded as belonging to the scope of the present invention.
As shown in Figure 1, double-station electric arc furnaces 100 proposed by the present invention includes flue 10, electrode unit 20 and two Shaft unit 30, each shaft unit 30 all have the smelting room 31 of opening upwards, and flue 10 is arranged in two shaft lists Between member 30 and two smelting rooms 31 are connected to, electrode unit 20 includes electrode movement device 21 and is mounted on electrode movement device 21 On electrode (not shown), electrode movement device 21 include electrode lifting mechanism 211 and electrode rotary mechanism 212, electrode Rotating mechanism 212 moves back and forth between two shaft units 30 with moving electrode, 211 driving electrodes of electrode lifting mechanism rise and Decline, the electrode after decline are inserted into the smelting room 31 for the shaft unit 30 being disposed below.
Its electrode of double-station electric arc furnaces 100 proposed by the present invention can move back and forth between two shaft units 30, this Sample, two shaft units 30 can work alternatively (alternately smelting operation).Meanwhile flue 10 is again by two shaft units 30 smelting room 31 is connected, in this way, the high-temperature flue gas smelted in the smelting room 31 of operation can be by flue 10 It is smelted in room 31 into another and wherein steel scrap is preheated, achieved the purpose that energy-saving.
Two shaft unit 30 of double-station electric arc furnaces 100 proposed by the present invention alternately can be smelted and be preheated, this Sample, at the end of wherein a shaft unit 30 is tapped, another shaft unit 30 is by scrap steel preheating, electrode movement device Electrode movement can be started to smelt by 21 to another shaft unit, shortened smelting cycle, improved production efficiency.
Compared with existing scrap steel preheating formula electric arc furnaces, 100 occupied area of double-station electric arc furnaces proposed by the present invention is small, if Standby height is low, saves space and land occupation, also reduces cost and investment.
In an optional example of the invention, shaft unit 30 includes furnace shell 32 and furnace bottom 33, and furnace shell 32 is to set vertically The cylindrical body set, furnace bottom 33 are installed in 32 bottom end of furnace shell and are enclosed the smelting room 31 of opening upwards with furnace shell 32.
In an optional example of the invention, the both ends of flue 10 are respectively fixedly connected in corresponding furnace shell 32 On outer wall, the air through hole 34 being connected to flue 10 is offered on furnace shell 32, smelts the flue gas in room 31 by air through hole 34 enter flue 10.
In an optional example, control valve is also equipped on flue 10, control valve can control flue gas The connection and partition of pipeline 10.In this way, operator can control two shaft units according to production needs in smelting production Whether it is connected between 30, tapping, charging etc. is facilitated to operate.
In an optional example of the invention, it is also provided with exhaust hole (not shown) on furnace shell 32, smelts room Flue gas in 31 is discharged by exhaust hole.
In an optional example, it is provided with exhaust pipe outside exhaust hole, smelts room and passes through exhaust pipe and flue gas Recycling and processing device is connected.
In an optional example of the invention, shaft unit 30 includes bell 35, and bell 35 covers the top for being located at furnace shell 32 It holds and closes and smelt room 31, mounting hole up and down, electrode energy penetrating mounting holes are offered on bell 35.Electrode is revolved by electrode The rotation of rotation mechanism 212 is to 30 top of shaft unit, and the decline of 211 driving electrodes of electrode lifting mechanism, the electrode after decline is through bell In the smelting room 31 of the mounting hole side of being inserted under on 35.
In an optional example of the invention, shaft unit 30 further includes bell mobile device 36, and bell 35 is mounted on In bell mobile device 36, bell mobile device 36 drives bell 35 to be moved to the waiting far from furnace shell 32 by the top of furnace shell 32 Position.When needing to tap or feed, drive the unscrewing of bell 35 to holding fix using bell mobile device 36, when smelting need to be carried out When refining or preheating, recycle bell mobile device 36 that bell 35 is rotated back to 32 top of furnace shell to close and smelt room 31.In this way, just The opening and closing of bell 35 are realized by bell mobile device 36 with can be convenient, tapping, charging convenient for shaft unit 30 Deng operation.It should be noted that bell 35 is both needed in pass during shaft unit 30 is carried out in warm and smelted Closed state.
In the present invention, as shown in Figures 2 to 5, electrode rotary mechanism 212 passes through electrode lifting hydraulic cylinder for electrode lifting Or decline, electrode lifting mechanism 211 drive electrode rotary, electrode rotary mechanism 212, electrode positioning mechanism by rotation gear assembly Specific structure those skilled in the art of structure 211 and bell mobile device 36 can use the prior art according to production needs, herein Without repeating.
Now in conjunction with Fig. 1, the specific work process for the double-station electric arc furnaces 100 that the present invention will be described in detail proposes.Such as Fig. 1 institute Show, two shaft units 30 are located in No.1 station X and No. two station Y, in the present embodiment, double-station electric arc furnaces 100 The course of work be located at the tapping of shaft unit 30 of No. two station Y and terminate to start to illustrate.
After shaft unit 30 at No. two station Y is tapped, the unscrewing of bell 35 at No.1 station X extremely waits position, Electrode movement device 21 is by above the shaft unit 30 electrode rotary to No.1 station X at simultaneously, so far shaft at No.1 station X High-temperature flue gas when steel scrap in unit 30 is smelted by shaft unit 30 at No. two station Y of a upper heat preheats, and at this time one 21 driving electrodes of electrode movement device at number station X decline and wait smelting to be energised.
Steel scrap is added into the shaft unit 30 at No. two station Y in the material of overhead traveling crane handling at this time basket, No. two works after charging Bell 35 at the Y of position screws in its corresponding 32 top of furnace shell (working position).
After bell 35 at No. two station Y is closed, the electrode at No.1 station X is initially powered up smelting, smelting process In high-temperature flue gas entered in the smelting room 31 (burner hearth) at the place No. two station X by flue 10, high-temperature flue gas passes through smelting Steel scrap in room 31 realizes scrap steel preheating, then is discharged from the gas vent smelted on room 31.
Shaft unit 30 at No.1 station X is smelted after terminating tapping, at No. two station Y in shaft unit 30 Steel scrap, which has been warmed up, to be finished, and the unscrewing of bell 35 at No.1 station X is to waiting position, while electrode movement device 21 is by electrode rotary 30 top of shaft unit to No. two station Y, later, 21 driving electrodes of electrode movement device decline and wait smelting to be energised.
Steel scrap is added into the shaft unit 30 at No.1 station X for the material of overhead traveling crane handling at this time basket, No.1 work after charging Bell 35 at the X of position screws in working position.
The shaft unit 30 at No. two station Y can start to smelt at this time, and the high-temperature flue gas generated in smelting passes through flue gas Preheating scrap in the smelting room 31 (burner hearth) of shaft unit 30 at the entrance of pipeline 10 No.1 station X.
The rest may be inferred, and the shaft unit 30 at No.1 station X is used alternatingly with the shaft unit 30 at No. two station Y, this Invention can achieve the purpose that improving efficiency reduces production cost with scrap steel preheating, shortening smelting cycle.
For explaining in detail for the respective embodiments described above, purpose, which is only that, explains the present invention, in order to be able to More fully understand the present invention, still, these descriptions cannot with any explanation at being limitation of the present invention, in particular, Each feature described in different embodiments can also mutual any combination, so that other embodiments are formed, in addition to having Opposite description is specified, these features should be understood to can be applied in any one embodiment, and be not limited merely to Described embodiment.

Claims (8)

1. a kind of double-station electric arc furnaces, which is characterized in that the double-station electric arc furnaces includes:
Two shaft units, each shaft unit all have the smelting room of opening upwards;
Flue is arranged between two shaft units and is connected to two smelting rooms;
Electrode unit, including electrode movement device and the electrode being mounted on the electrode movement device, the electrode movement dress It sets including electrode lifting mechanism and electrode rotary mechanism, the electrode rotary mechanism drives the electrode in two shaft lists It is moved back and forth between member, the electrode lifting mechanism drives the electrode raising and lowering, and the electrode after decline is inserted into position It is indoor in the smelting of the shaft unit below.
2. double-station electric arc furnaces as described in claim 1, which is characterized in that the shaft unit includes furnace shell and furnace bottom, institute State the cylindrical body that furnace shell is vertically arranged, the furnace bottom be installed in the furnace shell bottom end and with the furnace shell be enclosed opening to On the smelting room.
3. double-station electric arc furnaces as claimed in claim 2, which is characterized in that the both ends of the flue are respectively fixedly connected with On the outer wall of the corresponding furnace shell, the air through hole with the flue corresponding matching, institute are offered on the furnace shell It states smelting indoor flue gas and the flue is entered by the air through hole.
4. double-station electric arc furnaces as claimed in claim 3, which is characterized in that be also equipped with control valve on the flue Door, the control valve control the connection and partition of the flue.
5. double-station electric arc furnaces as claimed in claim 2, which is characterized in that be also provided with exhaust hole, institute on the furnace shell The indoor flue gas of smelting is stated to be discharged by the exhaust hole.
6. double-station electric arc furnaces as claimed in claim 5, which is characterized in that it is provided with exhaust pipe outside the exhaust hole, The smelting room is connected by the exhaust pipe with off-gas recovery processing unit.
7. double-station electric arc furnaces as claimed in claim 2, which is characterized in that the shaft unit includes bell, the bell Lid is located at the top of the furnace shell and closes the smelting room, and mounting hole up and down, the electricity are offered on the bell Pole can run through the mounting hole.
8. double-station electric arc furnaces as claimed in claim 7, which is characterized in that the shaft unit further includes the mobile dress of bell It sets, the bell is mounted in the bell mobile device, and the bell mobile device drives the bell by the furnace shell Top is moved to the holding fix far from the furnace shell.
CN201811273561.3A 2018-10-30 2018-10-30 Double-station electric arc furnace Pending CN109136464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811273561.3A CN109136464A (en) 2018-10-30 2018-10-30 Double-station electric arc furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811273561.3A CN109136464A (en) 2018-10-30 2018-10-30 Double-station electric arc furnace

Publications (1)

Publication Number Publication Date
CN109136464A true CN109136464A (en) 2019-01-04

Family

ID=64806424

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811273561.3A Pending CN109136464A (en) 2018-10-30 2018-10-30 Double-station electric arc furnace

Country Status (1)

Country Link
CN (1) CN109136464A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112094977A (en) * 2020-08-26 2020-12-18 北京科技大学 Process and system for efficient smelting of double-furnace electric-converter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727481A (en) * 1993-07-08 1995-01-27 Nippon Steel Corp Two-chamber type arc furnace
JPH09113150A (en) * 1995-10-18 1997-05-02 Ishikawajima Harima Heavy Ind Co Ltd Air discharging device for arc furnace
CN201358268Y (en) * 2009-02-27 2009-12-09 鞍山创新实业有限公司 Novel ladle fining furnace
CN103361465A (en) * 2012-03-27 2013-10-23 山西太钢不锈钢股份有限公司 Steel-making method for electric arc furnace and steel-making device thereof
CN108396101A (en) * 2018-04-25 2018-08-14 中冶京诚工程技术有限公司 Electric arc furnace with cross-sliding furnace body
CN209024583U (en) * 2018-10-30 2019-06-25 中冶京诚工程技术有限公司 Double-station electric arc furnace

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727481A (en) * 1993-07-08 1995-01-27 Nippon Steel Corp Two-chamber type arc furnace
JPH09113150A (en) * 1995-10-18 1997-05-02 Ishikawajima Harima Heavy Ind Co Ltd Air discharging device for arc furnace
CN201358268Y (en) * 2009-02-27 2009-12-09 鞍山创新实业有限公司 Novel ladle fining furnace
CN103361465A (en) * 2012-03-27 2013-10-23 山西太钢不锈钢股份有限公司 Steel-making method for electric arc furnace and steel-making device thereof
CN108396101A (en) * 2018-04-25 2018-08-14 中冶京诚工程技术有限公司 Electric arc furnace with cross-sliding furnace body
CN209024583U (en) * 2018-10-30 2019-06-25 中冶京诚工程技术有限公司 Double-station electric arc furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112094977A (en) * 2020-08-26 2020-12-18 北京科技大学 Process and system for efficient smelting of double-furnace electric-converter

Similar Documents

Publication Publication Date Title
CN100463980C (en) Double layer roller bottom type continuous spheroidizing annealing furnace
CN200940153Y (en) Double layered roller bottom type continuous spheroidizing furnace
CN108624740A (en) Steelmaking equipment and smelting method for steelmaking by using scrap steel
CN209024583U (en) Double-station electric arc furnace
CN108624739B (en) Steelmaking equipment and smelting method for steelmaking by using scrap steel
CN109136464A (en) Double-station electric arc furnace
CN201201962Y (en) Composite type annealing furnace
CN202401104U (en) Box-type protective atmosphere heat treatment furnace
CN208879671U (en) A kind of energy-efficient molten metal, which stores, gives soup system
CN102534147B (en) Furnace door sealing device of box type protective atmosphere thermal treatment furnace
CN201434601Y (en) Two-phase electric arc furnace
CN203498453U (en) Hot-charging blast furnace slag carbonization electric furnace
CN109945646A (en) A kind of converter covering/uncovering device and method
CN206803764U (en) A kind of long-life, the kiln drawing mechanism of regulating flow quantity
CN101825394B (en) Structure for bell-type and well-type mixed furnace
CN207760380U (en) Rotary open type electric arc furnace door
CN211005475U (en) Oxygen lance fixing device in steel smelting process
CN211782710U (en) Converter with good stability for metal smelting
CN207515556U (en) Tunnel induced air type aluminium smelting furnace group
CN207881469U (en) Tunnel type aluminium smelting furnace group with illumination monitoring equipment
CN113957201A (en) Method for preheating magnetic suspension scrap steel and electric arc furnace steelmaking device capable of preheating magnetic suspension scrap steel
CN208116750U (en) A kind of capping attemperator of hot-metal bottle
CN102373319B (en) Energy-saving dehydrogenation furnace
CN202141331U (en) Movable bell-shield full-fiber resistance furnace
CN2405174Y (en) Equipment for preheating waste steel using flue gas from vertical kiln-electric furnace combination

Legal Events

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

Application publication date: 20190104