CN108844371A - Closed furnace door of electric arc furnace - Google Patents

Closed furnace door of electric arc furnace Download PDF

Info

Publication number
CN108844371A
CN108844371A CN201811060349.9A CN201811060349A CN108844371A CN 108844371 A CN108844371 A CN 108844371A CN 201811060349 A CN201811060349 A CN 201811060349A CN 108844371 A CN108844371 A CN 108844371A
Authority
CN
China
Prior art keywords
electric arc
resistance
furnace
plume
fire door
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
CN201811060349.9A
Other languages
Chinese (zh)
Inventor
潘宏涛
于灏
邱明罡
戈义彬
陈卫强
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 CN201811060349.9A priority Critical patent/CN108844371A/en
Publication of CN108844371A publication Critical patent/CN108844371A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/18Door frames; Doors, lids, removable covers
    • F27D1/1858Doors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10Details, accessories, or equipment peculiar to hearth-type furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The invention provides a closed furnace door of an electric arc furnace, which relates to the field of electric arc furnace steelmaking and comprises a furnace door body arranged outside a furnace opening of the electric arc furnace, wherein the top end and two side edges of the furnace door body are hermetically matched with a furnace shell of the electric arc furnace, the closed furnace door of the electric arc furnace also comprises a first heat-resisting part and a second heat-resisting part which can resist the temperature of slag in the electric arc furnace, the first heat-resisting part is fixedly arranged on the inner side wall of the furnace door body and protrudes out of the furnace door body downwards, the second heat-resisting part is arranged on the lower edge of the furnace opening and is fixedly connected with the outer wall of the furnace shell, and a slag sliding gap can be formed between the first heat-resisting part and the. The invention provides a closed furnace door of an electric arc furnace, which can meet the process requirements of smelting while slag sliding of the electric arc furnace and can prevent air outside the furnace from entering the furnace.

Description

A kind of closed fire door of electric arc furnaces
Technical field
The present invention relates to electric-arc furnace steelmaking field, in particular to the closed fire door of a kind of electric arc furnaces.
Background technique
Electric arc furnaces door upper part is made of water cooling coil pipe at present, and such fire door can bear the high temperature from molten steel and clinker Radiation, but cannot directly be contacted with high temperature furnace slag, otherwise have the danger burnt and exploded.Therefore, it is refined in existing electric furnace During steel, in order to meet the process requirements for slipping slag when smelting, fire door must open wide and must keep certain with high temperature furnace slag Gap.
But the gap of fire door and high temperature furnace slag can allow the air outside furnace that can enter in furnace.The outer air of furnace enters in furnace, in band A large amount of nitrogen and other inert gases are also brought while entering 21% oxygen into.Oxygen enters in furnace the oxygen that will increase electrode Change and consumption, other gases in addition to oxygen enter in electric furnace the operating load that then will increase dust pelletizing system, nitrogen enters It is cracked under high-temperature electric arc again after in furnace, will cause molten steel nitrogen pick-up, reduction Molten Steel Cleanliness.
But if fire door and furnace shell are fully sealed, then fire door just loses the function of slipping slag, is not also able to satisfy electric arc The needs that furnace is smelted.
Summary of the invention
The purpose of the present invention is to provide a kind of closed fire doors of electric arc furnaces, have both been able to satisfy electric arc furnaces and have slipped slag when smelting Process requirements, and can prevent the outer air of furnace from entering in furnace simultaneously.
In order to achieve the above objectives, the present invention proposes a kind of closed fire door of electric arc furnaces, the furnace including being mounted on electric arc furnaces Oven door body outside mouthful, wherein the top and two sides of the oven door body, which are sealed with the furnace shell of the electric arc furnaces, to be cooperated, institute The closed fire door for stating electric arc furnaces further includes being resistant to the first refractory sections of slag temperature in the electric arc furnaces and second heat-resisting Portion, first refractory sections are installed on the inner sidewall of the oven door body and downwardly projecting in the oven door body, and described Two refractory sections are located at the lower edge of the fire door and are fixedly connected with the outer wall of the furnace shell, first refractory sections and described second It is capable of forming between refractory sections and slips slag gap.
The closed fire door of electric arc furnaces as described above, wherein first refractory sections include more than two first resistance to Plume, the first resistance to plume are horizontally disposed column and are installed on the inner sidewall of the oven door body, described first The both ends of resistance to plume are flushed with the two sides of the oven door body, more than two first resistance to plumes along the vertical direction sequence Close-packed arrays, the described first resistance to plume positioned at bottom are downwardly projecting in the oven door body.
The closed fire door of electric arc furnaces as described above, wherein one end of second refractory sections is arranged in the fire door Lower edge, the other end of second refractory sections tilts down setting.
The closed fire door of electric arc furnaces as described above, wherein second refractory sections include more than two second resistance to Plume, the second resistance to plume are horizontally disposed column, and more than two second resistance to plumes are along second refractory sections Inclined direction sequence close-packed arrays.
The closed fire door of electric arc furnaces as described above, wherein more than two second resistance to plumes are successively fixed to be connected It connects, the described second resistance to plume positioned at the top is fixedly connected on the outer wall of the furnace shell.
The closed fire door of electric arc furnaces as described above, wherein the first resistance to plume and the second resistance to plume are The resistance to plume of graphite.
The closed fire door of electric arc furnaces as described above, wherein the first resistance to plume and the second resistance to plume are The resistance to plume of aluminum.
The closed fire door of electric arc furnaces as described above, wherein the cast iron plate that the oven door body is vertically arranged, it is described First refractory sections are fixedly connected on the inner sidewall of the cast iron plate.
The closed fire door of electric arc furnaces as described above, wherein the closed fire door of the electric arc furnaces further includes fire door liter Falling unit, the furnace door lifting device be connected with the outer wall of the oven door body and drive the oven door body rise and under Drop.
The closed fire door of electric arc furnaces as described above, wherein the closed fire door of the electric arc furnaces further includes that fire door is clear Device is managed, the fire door cleaning plant includes appendix and nozzle, and one end of the appendix is connected with gas source, the gas transmission The other end ecto-entad of pipe runs through the oven door body, and the nozzle is mounted on the other end of the appendix, the nozzle Gas outlet towards first refractory sections.
Compared with prior art, the invention has the characteristics that and advantage:
The closed fire door of electric arc furnaces proposed by the present invention is arranged in the first refractory sections in oven door body and is arranged in furnace It is formed between the second refractory sections at mouth lower edge and slips slag gap, generate high temperature furnace during electric arc furnaces is powered and smelts in this way Slag can be flowed out from slipping in slag gap, meanwhile, the high temperature furnace slag continuously outflowed will slip the sealing of slag gap filling again, prevent outer The air on boundary is entered inside electric arc furnaces by slipping slag gap, realizes oven door sealing;First refractory sections and the second refractory sections can It prevents high temperature furnace slag from contacting with the direct of oven door body, oven door body is avoided to be burnt or exploded.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, limits the scope of the present disclosure without in any way.Separately Outside, shape and proportional sizes of each component in figure etc. are only schematical, are used to help the understanding of the present invention, are not tool Body limits the shape and proportional sizes of each component of the present invention.Those skilled in the art under the teachings of the present invention, can basis Concrete condition selects various possible shapes and proportional sizes to implement the present invention.
Fig. 1 is the structural schematic diagram of the closed fire door of electric arc furnaces proposed by the present invention;
Fig. 2 is the use schematic diagram of the closed fire door of electric arc furnaces proposed by the present invention.
Description of symbols:
100, fire door;110, oven door body;
120, the first refractory sections;121, the first resistance to plume;
130, the second refractory sections;131, the second resistance to plume;
140, lifting device;150, fire door cleaning plant;
160, slag gap is slipped;170, water cooling plant;
400, high temperature furnace slag;200, fire door;
300, furnace shell.
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 and Figure 2, the present invention proposes a kind of closed fire door 100 of electric arc furnaces, is mounted on the fire door of electric arc furnaces Outside 200, the closed fire door 100 of the electric arc furnaces includes at least oven door body 110, the first refractory sections 120 and the second refractory sections 130, the first refractory sections 120 and the second refractory sections 130 are resistant to the temperature of high temperature furnace slag 400 in electric arc furnaces, oven door body 110 top and two sides, which are sealed with the furnace shell of electric arc furnaces 300, to be cooperated, and the first refractory sections 120 are installed in oven door body 110 On inner sidewall and downwardly projecting in oven door body 110, the second refractory sections 130 are located at the lower edge of fire door 200 and outer with furnace shell 300 Wall is fixedly connected, and is capable of forming between the first refractory sections 120 and the second refractory sections 130 and is slipped slag gap 160.
The first refractory sections 120 in oven door body 110 are arranged in the closed fire door 100 of electric arc furnaces proposed by the present invention It is formed between the second refractory sections 130 being arranged at 200 lower edge of fire door and slips slag gap 160, in this way in electric arc furnaces energization smelting High temperature furnace slag 400 is generated during refining to flow out from slipping in slag gap 160, meanwhile, the high temperature furnace slag 400 continuously outflowed The filling sealing of slag gap 160 will be slipped again, be prevented extraneous air to enter inside electric arc furnaces by slipping slag gap 160, be realized Oven door sealing;First refractory sections 120 and the second refractory sections 130 can prevent high temperature furnace slag from contacting with the direct of oven door body 110, Oven door body 110 is avoided to be burnt or exploded.
The closed fire door 100 of electric arc furnaces proposed by the present invention, which had both been able to satisfy electric arc furnaces and slips the technique of slag when smelting, to be wanted It asks, while being able to achieve oven door sealing again, prevent the outer air of furnace from being entered in furnace by fire door 200, to reduce electric arc furnaces generation Exhaust gas volumn reduces the load and energy consumption of electric stove dust;It also can be reduced the red-hot electrode of furnace high-temperature by the oxygen in air simultaneously Oxidation, to reduce consumption.Also, since the air entered in furnace is greatly decreased, decrease the reproducibility gas produced in furnace The oxygen of body brought by air carries out secondary oxidation or burning, to improve the content of reducing gas in flue gas (CO), favorably In the further recycling and utilization of the reducibility gas generated in furnace;In addition, since the air entered in furnace is greatly decreased, accordingly Reduce nitrogen to enter in furnace, reduces the content of nitrogen in molten steel, be obviously improved Molten Steel Cleanliness.
In the present invention, the first refractory sections 120 and the second refractory sections 130 are made of heat-resisting material, heat-resisting material Refer to the material for being resistant to 1650 DEG C or more high temperature.
In an optional example of the invention, the first refractory sections 120 include the more than two first resistance to plumes 121, the One resistance to plume 121 is horizontally disposed column and is installed on the inner sidewall of oven door body 110, the two of the first resistance to plume 121 End is flushed with the two sides of oven door body 110, more than two first resistance to plumes 121 sequence close-packed arrays along the vertical direction, position It is downwardly projecting in oven door body 110 in the first resistance to plume 121 of bottom.More than two compact arranged first resistance to plumes 121 The first refractory sections 120 are constituted, prevent oven door body 110 from directly contacting with high temperature furnace slag 400.
In an optional example of the invention, the both ends of the first resistance to plume 121 are respectively equipped with fixation kit, fixation kit Including support arm and mounting pin, one end of mounting pin is fixed on the end face of the first resistance to plume 121, and the other end of mounting pin is along The axis evagination of one resistance to plume 121, support arm is horizontally disposed, and one end of support arm is fixed in oven door body, and mounting pin is set up On the upper surface of support arm, and the other end of support arm is equipped with the occlusion part upwarped, to prevent falling off for mounting pin.It blocks Portion is set as at a distance from oven door body, after mounting pin rides upon the upper surface of support arm, the side wall top of the first resistance to plume 121 It is against on the inner sidewall of oven door body, the side wall contact of mounting pin is on occlusion part.
In an optional example of the invention, one end of the second refractory sections 130 is arranged in the lower edge of fire door 200, and second The other end of refractory sections 130 tilts down setting.In this way, high temperature furnace slag 400 is after slipping the outflow of slag gap 160, it is just resistance to along second The upper surface in hot portion 130 flows down, and is discharged in time.
In an optional example of the invention, the second refractory sections 130 include the more than two second resistance to plumes 131, the Two resistance to plumes 131 are horizontally disposed column, and more than two second resistance to plumes 131 are along the inclination side of the second refractory sections 130 To sequence close-packed arrays.
In an optional example of the invention, multiple second resistance to plumes 131 are fixedly connected sequentially, positioned at the of the top Two resistance to plumes 131 are fixedly connected on the outer wall of furnace shell 300.
In an optional example of the invention, it can also be provided in the lower section of the more than two second resistance to plumes 131 Mounting plate, mounting plate are equipped with more than two installation steps, and the second resistance to plume 131 is installed on its corresponding installation step.
In an optional example of the invention, the length of the second resistance to plume 131 is greater than or equal to the length of the first resistance to plume Degree, the i.e. width of the second refractory sections 130 are greater than the width of the first refractory sections 120, to prevent from the high temperature for slipping the outflow of slag gap 160 Clinker does not overflow, and guarantees to smelt production safety.
In an optional example of the invention, the second refractory sections 130 are installed on the outer wall of lower furnace shell of electric arc furnaces.
In an optional example of the invention, the first resistance to plume 121 and the second resistance to plume 131 are the resistance to plume of graphite. The resistance to plume of graphite can use the graphite electrode used when electric arc furnace smelting, be resistant to 1700 DEG C or more of high temperature.
In an optional example of the invention, the first resistance to plume 121 and the second resistance to plume 131 are the resistance to plume of aluminum. The resistance to plume of aluminum is made of High-Alumina heat proof material, is resistant to high temperature.
In an optional example of the invention, the first resistance to plume 121 and the second resistance to plume 131 are cylindrical body, so as to In deslagging.Certain first resistance to plume 121 and the second resistance to plume 131 or prism.
In an optional example of the invention, the cast iron plate that oven door body 110 is vertically arranged, the first refractory sections 120 It is fixedly connected on the inner sidewall of cast iron plate.In this way, oven door body 110 has enough mechanical strengths, convenient for it is first heat-resisting The installation in portion 120 is also convenient for being used cooperatively with other equipment of electric arc furnaces.
In an optional example of the invention, the closed fire door 100 of electric arc furnaces further includes furnace door lifting device 140, Furnace door lifting device 140 is connected with the outer wall of oven door body 110 and drives 110 raising and lowering of oven door body.In this way, passing through The height of the adjustable oven door body 110 of furnace door lifting device 140 and the first refractory sections 120, and then adjust and slip slag gap 160 Width (i.e. the aperture of fire door), slag gap 160 will be slipped while guaranteeing that high temperature furnace slag 400 can be flowed out from slag gap 160 is slipped Sealing.
In an optional example of the invention, furnace door lifting device can use existing furnace door lifting device.
In an optional example of the invention, the closed fire door 100 of electric arc furnaces further includes fire door cleaning plant 150, Fire door cleaning plant 150 includes appendix and nozzle, and one end of appendix is connected with gas source, and the other end of appendix is by extroversion Interior to run through oven door body 110, nozzle is mounted on the other end of appendix, gas outlet the first refractory sections 120 of direction of nozzle.Work as furnace Door dry slag when needing to clear up the first refractory sections 120, is sprayed by appendix and nozzle to the surface of the first refractory sections 120 Oxygen blast gas.
In an optional example of the invention, the top of oven door body 110 is equipped with water cooling plant 170.Water cooling plant packet Installation liner plate and water cooling coil pipe are included, installation liner plate is L-shaped to have vertical part and the horizontal part, and one end of horizontal part and oven door body connect It connects, the other end of horizontal part is connect with vertical portion, and the furnace shell outer wall above vertical portion and fire door, which seals, to be cooperated, the setting of water cooling coil pipe In the upper surface of horizontal part.
In an optional example of the invention, it is separately installed with baffle in the two sides of fire door, baffle is installed in furnace shell It is vertically arranged on outer wall and with oven door body 110, the two sides of oven door body 110 cooperate with ipsilateral guard seal respectively, peace The two sides of the horizontal part of fitted lining plate also cooperate with ipsilateral guard seal respectively.
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 (10)

1. the closed fire door of a kind of electric arc furnaces, including the oven door body being mounted on outside the fire door of electric arc furnaces, which is characterized in that institute The top and two sides for stating oven door body, which are sealed with the furnace shell of the electric arc furnaces, to be cooperated, and the closed fire door of the electric arc furnaces is also The first refractory sections and the second refractory sections including being resistant to slag temperature in the electric arc furnaces, first refractory sections are installed in On the inner sidewall of the oven door body and downwardly projecting in the oven door body, second refractory sections are located under the fire door Edge is simultaneously fixedly connected with the outer wall of the furnace shell, is capable of forming between slipping slag between first refractory sections and second refractory sections Gap.
2. the closed fire door of electric arc furnaces as described in claim 1, which is characterized in that first refractory sections include two with On the first resistance to plume, the first resistance to plume is horizontally disposed column and is installed in the inner sidewall of the oven door body On, the both ends of the first resistance to plume are flushed with the two sides of the oven door body, more than two first resistance to plume edges Vertical direction sequence close-packed arrays, the described first resistance to plume positioned at bottom are downwardly projecting in the oven door body.
3. the closed fire door of electric arc furnaces as claimed in claim 2, which is characterized in that one end of second refractory sections is arranged Setting is tilted down in the other end of the lower edge of the fire door, second refractory sections.
4. the closed fire door of electric arc furnaces as claimed in claim 3, which is characterized in that second refractory sections include two with On the second resistance to plume, the second resistance to plume is horizontally disposed column, and more than two second resistance to plumes are along described the The inclined direction sequence close-packed arrays of two refractory sections.
5. the closed fire door of electric arc furnaces as claimed in claim 4, which is characterized in that more than two second resistance to plumes It is fixedly connected sequentially, the described second resistance to plume positioned at the top is fixedly connected on the outer wall of the furnace shell.
6. the closed fire door of electric arc furnaces as claimed in claim 4, which is characterized in that the first resistance to plume and described second Resistance to plume is the resistance to plume of graphite.
7. the closed fire door of electric arc furnaces as claimed in claim 4, which is characterized in that the first resistance to plume and described second Resistance to plume is the resistance to plume of aluminum.
8. the closed fire door of electric arc furnaces as described in claim 1, which is characterized in that the oven door body was vertically arranged Cast iron plate, first refractory sections are fixedly connected on the inner sidewall of the cast iron plate.
9. the closed fire door of electric arc furnaces as described in claim 1, which is characterized in that the closed fire door of the electric arc furnaces is also Including furnace door lifting device, the furnace door lifting device is connected with the outer wall of the oven door body and drives the oven door body Raising and lowering.
10. the closed fire door of electric arc furnaces as described in claim 1, which is characterized in that the closed fire door of the electric arc furnaces It further include fire door cleaning plant, the fire door cleaning plant includes appendix and nozzle, one end and the gas source phase of the appendix The other end ecto-entad of connection, the appendix runs through the oven door body, and the nozzle is mounted on the another of the appendix One end, the gas outlet of the nozzle is towards first refractory sections.
CN201811060349.9A 2018-09-12 2018-09-12 Closed furnace door of electric arc furnace Pending CN108844371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811060349.9A CN108844371A (en) 2018-09-12 2018-09-12 Closed furnace door of electric arc furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811060349.9A CN108844371A (en) 2018-09-12 2018-09-12 Closed furnace door of electric arc furnace

Publications (1)

Publication Number Publication Date
CN108844371A true CN108844371A (en) 2018-11-20

Family

ID=64188189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811060349.9A Pending CN108844371A (en) 2018-09-12 2018-09-12 Closed furnace door of electric arc furnace

Country Status (1)

Country Link
CN (1) CN108844371A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750673A (en) * 2019-03-29 2020-10-09 达涅利机械设备股份公司 Slag door for melting furnace

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870655A (en) * 1987-11-16 1989-09-26 Ward Vincent C Apparatus for recovery of metallics and non-metallics from spent catalysts
JPH09133475A (en) * 1995-11-08 1997-05-20 Ishikawajima Harima Heavy Ind Co Ltd Slag-off opening door device of steel making arc furnace
CN102326045A (en) * 2009-02-19 2012-01-18 Sms康卡斯特意大利股份公司 Arc metallurgic furnace slagging door
JP2013112883A (en) * 2011-11-30 2013-06-10 Jfe Steel Corp Sealing mechanism for opening part in heating furnace
CN103328913A (en) * 2010-11-29 2013-09-25 现代制铁株式会社 Slag discharge door device for an electric furnace
CN103727779A (en) * 2014-01-06 2014-04-16 攀枝花钢城集团瑞钢工业有限公司 Steel-making electric-arc furnace door opening building method
CN208805053U (en) * 2018-09-12 2019-04-30 中冶京诚工程技术有限公司 Closed furnace door of electric arc furnace

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870655A (en) * 1987-11-16 1989-09-26 Ward Vincent C Apparatus for recovery of metallics and non-metallics from spent catalysts
JPH09133475A (en) * 1995-11-08 1997-05-20 Ishikawajima Harima Heavy Ind Co Ltd Slag-off opening door device of steel making arc furnace
CN102326045A (en) * 2009-02-19 2012-01-18 Sms康卡斯特意大利股份公司 Arc metallurgic furnace slagging door
CN103328913A (en) * 2010-11-29 2013-09-25 现代制铁株式会社 Slag discharge door device for an electric furnace
JP2013112883A (en) * 2011-11-30 2013-06-10 Jfe Steel Corp Sealing mechanism for opening part in heating furnace
CN103727779A (en) * 2014-01-06 2014-04-16 攀枝花钢城集团瑞钢工业有限公司 Steel-making electric-arc furnace door opening building method
CN208805053U (en) * 2018-09-12 2019-04-30 中冶京诚工程技术有限公司 Closed furnace door of electric arc furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750673A (en) * 2019-03-29 2020-10-09 达涅利机械设备股份公司 Slag door for melting furnace
CN111750673B (en) * 2019-03-29 2022-07-22 达涅利机械设备股份公司 Slag door for melting furnace

Similar Documents

Publication Publication Date Title
JP3972266B2 (en) Method and apparatus for operating a double vessel arc furnace
US4353532A (en) Aluminum melting furnace
MX2008000424A (en) Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process.
CN208805053U (en) Closed furnace door of electric arc furnace
CN108844371A (en) Closed furnace door of electric arc furnace
CN108624739B (en) Steelmaking equipment and smelting method for steelmaking by using scrap steel
CN206321061U (en) A kind of hood-opening device
US3880648A (en) Method for producing steel in an electric arc furnace
US4696013A (en) Vessel of a metallurgical furnace, especially of an arc furnace
CN210802038U (en) Furnace door structure capable of realizing real-time check
US5590151A (en) Process for melting scrap iron in an electric furnace and installation for implementing the process
US3849586A (en) Electric arc furnaces and refractory shapes therefor
CN209214316U (en) A kind of steel plate building concentration heated by gas reverberatory furnace
JP7215224B2 (en) Method for slag removal in electric arc furnace and method for producing molten metal
EP3645181B1 (en) Melting apparatus for the production of steel
CN208475953U (en) Electric stove
US3771775A (en) Refractory-lined container for scrap
EP2107327B1 (en) Thermal gas flow control system in the electric arc furnace
CN108662854B (en) Method for heating alloy by using high-temperature flue gas of converter
JPS6160261A (en) Ladle heating device
Saboohi et al. Additional slag doors for increased eaf efficiency: a conceptual study
RU2734885C1 (en) Shaft-conveyor arc steel-smelting furnace
US3930786A (en) Apparatus for heating steel scrap
CN216694480U (en) Quick adjustable blanking mouth of hot stove feeding in ore deposit
CN214361570U (en) Door opening and closing mechanism of stepping heat treatment furnace

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