EP0048007B1 - Appareil métallurgique de fusion ayant une buse ou un brûleur pivotable - Google Patents

Appareil métallurgique de fusion ayant une buse ou un brûleur pivotable Download PDF

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Publication number
EP0048007B1
EP0048007B1 EP81107214A EP81107214A EP0048007B1 EP 0048007 B1 EP0048007 B1 EP 0048007B1 EP 81107214 A EP81107214 A EP 81107214A EP 81107214 A EP81107214 A EP 81107214A EP 0048007 B1 EP0048007 B1 EP 0048007B1
Authority
EP
European Patent Office
Prior art keywords
melting apparatus
nozzle
metallurgical melting
burner
annular
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.)
Expired
Application number
EP81107214A
Other languages
German (de)
English (en)
Other versions
EP0048007A1 (fr
Inventor
Ralph Weber
Bernt Rollinger
Michael Nagl
Bernhard Rinner
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.)
Voestalpine AG
Deutsche Voest Alpine Industrieanlagenbau GmbH
Original Assignee
Voestalpine AG
Deutsche Voest Alpine Industrieanlagenbau GmbH
Korf Engineering GmbH
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 Voestalpine AG, Deutsche Voest Alpine Industrieanlagenbau GmbH, Korf Engineering GmbH filed Critical Voestalpine AG
Priority to AT81107214T priority Critical patent/ATE10649T1/de
Publication of EP0048007A1 publication Critical patent/EP0048007A1/fr
Application granted granted Critical
Publication of EP0048007B1 publication Critical patent/EP0048007B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • F23C5/06—Provision for adjustment of burner position during operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/16—Arrangements of tuyeres

Definitions

  • the invention relates to a metallurgical melting unit according to the preamble of claim 1. It also relates to a pivotable nozzle or a swiveling burner according to the preamble of claim 12.
  • melter gasifiers such as are known for example from DE-A-28 43 303, i.e. for smelter units in which at the same time hot reducing gas is generated during the melting process, cannot be used.
  • DE-U-7 711 990 describes an oxygen lance for SM, electric furnaces or the like for freshening the molten steel with a device for introducing and removing the lance into or out of the furnace through a furnace wall opening and a device for adjusting the Lance inflation angle to the melt level became known.
  • the device for inserting and removing the lance is designed as a swivel device which has a swivel arm which can be swiveled about an essentially horizontal hinge axis arranged on the furnace wall in the region of the insertion opening and to the free end of which the oxygen lance is fastened.
  • a pressure medium cylinder articulated on the furnace wall is provided for actuating the swivel arm.
  • the lance shaft is attached to a closed hemisphere element with connections for the cooling water supply and return as well as the oxygen supply and the hemisphere element is pivotally articulated in the middle on a connection piece arranged at the free end of the swivel arm.
  • the hemisphere element In the operating position of the oxygen lance, the hemisphere element is seated in a cooled box inserted into the insertion opening with a conical receptacle for the hemisphere element, as a result of which an annular seat is formed for it.
  • the hemisphere element is pressed against this ring seat by means of the swivel arm.
  • the lance can only be pivoted in one plane, but not on all sides.
  • a shaft furnace for melting steel scrap with the help of burners has become known, in which burners are provided in the lower third of the shaft wall, which can be pivoted in the vertical direction about an axis.
  • the outermost tube of the burner in the region of the nozzle mouth is designed in the form of a spherical section and is mounted in a bowl adapted to the spherical surface.
  • the aim of the invention is a metallurgical melting unit of the type mentioned, in which a nozzle or a pivotable burner which can be pivoted on all sides can be inserted into the side wall of the melting unit in such a way that an essentially tight seal is ensured.
  • a nozzle or a pivotable burner which can be pivoted on all sides can be inserted into the side wall of the melting unit in such a way that an essentially tight seal is ensured.
  • Claim 12 characterizes the structure of a pivotable nozzle or a pivotable burner according to the invention.
  • the invention is explained in more detail by an embodiment with reference to a figure.
  • the figure shows the sectional view of a section from the side wall of a melter gasifier, in particular a melter gasifier according to EP-A1-10 627.
  • an opening 2 is provided above the bath level, through which an oxygen blowing nozzle 3 opens into the melter gasifier in order to generate the heat required for melting and the reducing gas on the one hand with the coal present in the melter gasifier.
  • the nozzle 3 comprises three tubes 4, 5 and 6, whereby a central channel and two ring channels are formed, as well as a head part 12 connecting the central tube 4 with the outer tube 6.
  • the central channel is connected to the central tube 4 attached gas inlet 7, the process gas, in the present case oxygen-containing gas, supplied, the ring channels are intended for liquid cooling of the nozzle.
  • Cooling water is introduced through a nozzle 8 attached to the outermost tube 6, passed forward through the outer annular gap to the nozzle tip 9, via a connecting channel to the inner annular gap and through this to a nozzle 10 also attached to the tube 6 and directed backwards to exit there.
  • the central tube 4 is closed at the rear by a screw cap 11. This is made possible by insertion another pipe, to which oil is fed, for example, a quick changeover to a burner.
  • the nozzle 3 is formed in the area of the passage through the side wall 1 of the melting unit in the form of a spherical section.
  • the head part 12 is expanded in the form of a spherical section 13 and this is resiliently clamped between two ring seats 14 and 15.
  • the first ring seat 14 is anchored in the side wall 1 of the melting unit and lies on the side of the curved surface of the spherical section 13 facing the nozzle tip 9, the second ring seat 15 has a position coaxial with the first ring seat 14 and lies on the side facing away from the nozzle tip 9 Side of the curved surface of the ball portion 13 and is pressed by spring force in the direction of the first ring seat 14. This provides an elastic clamping of the spherical section, which at the same time ensures a separation of the gas atmosphere in the interior of the melting unit from the outside atmosphere by the first ring seat 14.
  • the gas-tight seal can be improved by an annular gas seal 16 which bears against the curved surface of the spherical section in the region of its apex plane 17.
  • the seal at this point is not as thermally and mechanically stressed compared to the ring seat 14 and thus ensures a permanent gas-tight seal.
  • the first ring seat 14 is preferably designed as a liquid-cooled hollow ring 18.
  • the hollow ring 18 is part of a first conical tube section 19 which, in addition to the ring channel 20 of the hollow ring 18, has a further ring channel 21 for a cooling liquid.
  • the cooling liquid is guided through a tube 22 in the underside of the conical tube section 19 to the ring channel 20, which has a partition wall (not shown) in addition to the entry point into this channel, runs in the ring channel 20 to a connection point located on the other side of the partition wall in the annular channel 21 and leaves it via a tube 34 in the upper part of the conical tube section 19.
  • the first conical tube section 19, which carries the first ring seat 14, is made of copper with regard to good thermal conductivity, just like the tip of the nozzle, and is pressed into the conical seat of an annular flange 24 made of steel, which at several points on its circumference rests on a sheet metal jacket of the melting unit attached mounting flange 25 is attached.
  • three bolts 26 with elongated holes attached to the circumference of the ring flange 24 are used, by means of which pressing bolts 28 can be pressed by wedges 27 against the end face of the conical tube section 19.
  • the second ring seat 15 is formed on a second conical tube section 29 which is fastened to the ring flange 24 by means of screws 30 via three fastening tabs 31 stiffened along the circumference.
  • a defined contact pressure is generated by compression springs 33 and hat-shaped pressure disks 32.
  • the compression spring 33 becomes effective and the ring seat 15 is pressed resiliently against the curved surface of the ball section 13.
  • the elastic seat can be selected so that the angle can be continuously adjusted. If this is not necessary, the screws 30 can be tightened after the optimum angle has been set and the ball section can thus be firmly clamped.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Continuous Casting (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Combustion Of Fluid Fuel (AREA)

Claims (12)

1. Appareil métallurgique de fusion, en particulier cornue de fusion dans la paroi latérale (1) de laquelle est disposée, au-dessus du niveau du bain de fusion, au moins une buse pivotable (3) ou un brûleur pivotable constitué par au moins un tube (4, 5, 6), le tube (6) situé le plus éloigné à l'extérieur, ou la pièce de tête (12) de la buse (3) ou du brûleur qui y est reliée, étant réalisée en un emplacement sous la forme d'une calotte sphérique (13) et la surface galbée de cette calotte sphérique (13) portant, au niveau du côté voisin de la pointe (9) de la buse ou du brûleur, contre un siège annulaire (14) ancré dans la paroi latérale (1) de l'appareil de fusion, caractérisé par le fait que la calotte sphérique (13) est appliquée contre le premier siège annulaire (14) par l'intermédiaire d'un second siège annulaire (15) qui porte contre le côté de la surface galbée de la calotte sphérique, qui est éloigné de la pointe (9) de la buse ou du brûleur.
2. Appareil métallurgique de fusion selon la revendication 1, caractérisé par le fait que les deux sièges annulaires (14, 15) sont disposés coaxiale- ment l'un par rapport à l'autre.
3. Appareil métallurgique de fusion selon la revendication 1 ou 2, caractérisé par le fait qu'entre les deux sièges annulaires (14, 15) et contre la surface de la calotte sphérique (13), un moyen d'étanchéité annulaire au gaz porte contre la partie du plan sommital (17) de ladite colotte.
4. Appareil métallurgique de fusion selon l'une des revendications 1 à 3, caractérisé par le fait que le premier siège annulaire (14) est réalisé sous la forme d'une partie d'une bague creuse (18) à refroidissement par un liquide.
5. Appareil métallurgique de fusion selon l'une des revendications 1 à 4, caractérisé par le fait que le premier siège annulaire (14) est formé sur le côté intérieur d'une première section tubulaire conique (19), à l'extrémité de plus petit diamètre.
6. Appareil métallurgique de fusion selon la revendication 5, caractérisé par le fait que la première section tubulaire conique (19) comporte un canal annulaire (21) pour un liquide de refroidissement.
7. Appareil métallurgique de fusion selon la revendication 4 et 6, caractérisé par le fait que les canaux annulaires (20, 21) de l'anneau creux (18) et de la première section tubulaire conique (19) sont reliés par au moins une ouverture.
8. Appareil métallurgique de fusion selon l'une des revendications 1 à 7, caractérisé par le fait que le second siège annulaire (15) est formé sur une seconde section tubulaire conique (29), à l'extrémité ayant le plus petit diamètre.
9. Appareil métallurgique de fusion selon la revendication 8, caractérisé par le fait que la seconde section tubulaire conique (29) est pressée, à l'aide d'un élément élastique (33), contre la première section tubulaire conique (19).
10. Appareil métallurgique de fusion selon l'une des revendications 5 à 9, caractérisé par le fait que la première section tubulaire conique (19) est faite avec du cuivre et est pressée, da façon détachable, dans le siège conique d'un flasque annulaire (24) en acier.
11. Appareil métallurgique de fusion selon l'une des revendications 1 à 10, caractérisé par le fait que la buse (3) ou le brûleur est refroidie par un liquide.
12. Buse pivotable (3) ou brûleur pivotable constituée par au moins un tube (4, 5, 6) pour être montée dans la paroi latérale (1) d'un appareil métallurgique de fusion, au-dessus du niveau du bain de fusion, caractérisée par le fait que le tube (6) le plus extérieur, ou un élément de tête (12) de la buse ou du brûleur, qui est relié audit tube le plus extérieur, est conformé, en un emplacement, sous la forme d'une calotte sphérique (13) et que celle-ci est maintenue entre deux sièges annulaires (14, 15), par des éléments (19, 29) d'une construction de support, qui sont assemblés élastiquement.
EP81107214A 1980-09-12 1981-09-12 Appareil métallurgique de fusion ayant une buse ou un brûleur pivotable Expired EP0048007B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107214T ATE10649T1 (de) 1980-09-12 1981-09-12 Metallurgisches schmelzaggregat mit einer schwenkbaren duese bzw. einem schwenkbaren brenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034520A DE3034520C2 (de) 1980-09-12 1980-09-12 Metallurgisches Schmelzaggregat mit einer schwenkbaren Düse bzw. einem schwenkbaren Brenner
DE3034520 1980-09-12

Publications (2)

Publication Number Publication Date
EP0048007A1 EP0048007A1 (fr) 1982-03-24
EP0048007B1 true EP0048007B1 (fr) 1984-12-05

Family

ID=6111830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107214A Expired EP0048007B1 (fr) 1980-09-12 1981-09-12 Appareil métallurgique de fusion ayant une buse ou un brûleur pivotable

Country Status (13)

Country Link
US (1) US4392637A (fr)
EP (1) EP0048007B1 (fr)
JP (1) JPS5780105A (fr)
KR (1) KR830007848A (fr)
AT (1) ATE10649T1 (fr)
AU (1) AU7480281A (fr)
BR (1) BR8105814A (fr)
DD (1) DD201696A5 (fr)
DE (1) DE3034520C2 (fr)
ES (1) ES505398A0 (fr)
GB (1) GB2083608B (fr)
PL (1) PL232995A1 (fr)
ZA (1) ZA815862B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT378970B (de) * 1982-12-21 1985-10-25 Voest Alpine Ag Verfahren und vorrichtung zur herstellung von flùssigem roheisen oder stahlvorprodukten
US4525139A (en) * 1983-12-19 1985-06-25 Fuchs Systems, Inc. Burner in a drum
SE453124B (sv) * 1985-06-10 1988-01-11 Aga Ab Lock avsett att appliceras pa skenk
JPS625081A (ja) * 1985-07-02 1987-01-12 川崎製鉄株式会社 燃焼帯測定装置
DE3546127A1 (de) * 1985-12-24 1987-06-25 Bosch Gmbh Robert Verfahren zur automatischen ueberpruefung von steuergeraeten
GB2280501B (en) * 1993-07-30 1996-10-23 Co Steel Sheerness Plc Burner mounting device
US5823769A (en) * 1996-03-26 1998-10-20 Combustion Tec, Inc. In-line method of burner firing and NOx emission control for glass melting
LU90650B1 (fr) * 2000-10-04 2002-04-05 Wurth Paul Sa Dispositif de support d'ne tuy-re de four - cuve
DE10060951A1 (de) * 2000-12-06 2002-06-27 Messer Griesheim Gmbh Verfahren zum Einschmelzen von Metallschrott
US7238222B2 (en) * 2005-03-01 2007-07-03 Peterson Oren V Thermal synthesis production of steel
US7704445B2 (en) * 2005-06-29 2010-04-27 Process Technology International, Inc. Systems and methods for accessing a furnace melt
US7704444B2 (en) * 2005-06-29 2010-04-27 Process Technology International, Inc. Method and apparatus for testing characteristics of a furnace melt
US8277721B2 (en) * 2005-06-29 2012-10-02 Process Technology International, Inc. Systems and methods for accessing a furnace melt
DE102006054344A1 (de) * 2006-11-17 2008-05-21 Sms Demag Ag Metallurgisches Gefäß, insbesondere Lichtbogenofen
DE102012007528B3 (de) * 2012-04-17 2013-03-28 Badische Stahl-Engineering Gmbh Einsatzbaugruppe mit Rahmenkasten und Betriebsstoffzuführungsträger
ITUD20130007A1 (it) * 2013-01-25 2014-07-26 Ferriere Nord Spa Apparato di iniezione
ITUD20130008A1 (it) * 2013-01-25 2014-07-26 Ferriere Nord Spa Apparato di iniezione
US11300291B2 (en) 2016-11-03 2022-04-12 Berry Metal Company Burner housing
EP3480543A3 (fr) * 2017-11-03 2019-08-21 Berry Metal Company Boîtier de brûleur

Family Cites Families (10)

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DE543762C (de) * 1932-02-09 Maschb Akt Ges Kohlenstaubfeuerung
US966704A (en) * 1906-08-17 1910-08-09 John Pickles Oil-burning twyer.
GB897802A (en) * 1959-12-02 1962-05-30 Union Carbide Corp Improvements in and relating to melting metal scrap
AT226866B (de) * 1960-01-27 1963-04-10 Johann Wilhelm Dr Ing Ludowici Feuerungsanlage mit wenigstens zwei Düsen, von denen wenigstens eine ein Brenner ist
DE1216902B (de) * 1960-12-03 1966-05-18 Rheinstahl Huettenwerke Ag Schachtofen und Verfahren zum Schrottschmelzen
US3895784A (en) * 1972-10-06 1975-07-22 United States Steel Corp Apparatus for and method of optimum burning of carbon monoxide in a converter
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DE2843303C2 (de) * 1978-10-04 1982-12-16 Korf-Stahl Ag, 7570 Baden-Baden Verfahren und Anlage zur Erzeugung von flüssigem Roheisen und Reduktionsgas in einem Einschmelzvergaser

Also Published As

Publication number Publication date
JPS5780105A (en) 1982-05-19
ES8206633A1 (es) 1982-08-16
ATE10649T1 (de) 1984-12-15
GB2083608A (en) 1982-03-24
DE3034520A1 (de) 1982-03-25
DD201696A5 (de) 1983-08-03
GB2083608B (en) 1984-10-03
US4392637A (en) 1983-07-12
BR8105814A (pt) 1982-06-08
EP0048007A1 (fr) 1982-03-24
DE3034520C2 (de) 1983-01-05
ES505398A0 (es) 1982-08-16
AU7480281A (en) 1982-03-18
KR830007848A (ko) 1983-11-07
ZA815862B (en) 1982-08-25
PL232995A1 (fr) 1982-04-26

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