EP0688876B1 - Anneau de support refroidi pour un convertisseur - Google Patents

Anneau de support refroidi pour un convertisseur Download PDF

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Publication number
EP0688876B1
EP0688876B1 EP95250136A EP95250136A EP0688876B1 EP 0688876 B1 EP0688876 B1 EP 0688876B1 EP 95250136 A EP95250136 A EP 95250136A EP 95250136 A EP95250136 A EP 95250136A EP 0688876 B1 EP0688876 B1 EP 0688876B1
Authority
EP
European Patent Office
Prior art keywords
converter
mantle ring
inner face
mantle
cooled
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 - Lifetime
Application number
EP95250136A
Other languages
German (de)
English (en)
Other versions
EP0688876A2 (fr
EP0688876A3 (fr
Inventor
Karlheinz Langlitz
Gunter Schmitz
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0688876A2 publication Critical patent/EP0688876A2/fr
Publication of EP0688876A3 publication Critical patent/EP0688876A3/fr
Application granted granted Critical
Publication of EP0688876B1 publication Critical patent/EP0688876B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4646—Cooling arrangements
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4633—Supporting means

Definitions

  • the invention relates to a cooled converter support ring consisting of a steel jacket with an inner surface, which in Distance to the converter arranged, this encompasses and the one Coolant supply station is connected.
  • Converters for steelmaking are available in bulk from a certain size Support rings stored. With the increased demand on the Performance of the converter vessel, especially in the
  • the thermal load on the converter wall as well as that of the Tragringes always higher. This thermal load also affects at a distance of about 100 to 200 mm from the converter arranged support ring.
  • the invention has set itself the goal of a cooling system for one To create converter support ring, which with simple means a free Accessibility of the support ring allowed and with low energy consumption ensures safe cooling of the loaded bearing ring surfaces.
  • a predominantly on the jacket of the converter support ring meandering tubular coolant guide intended.
  • Parts of the coolant guide for example Breakthroughs through the transverse bulkheads can be parallel guided pipes can be designed.
  • the coil is arranged so that the individual parallel pipe pieces at least a distance of have twice the diameter (based on the center line), so that broad parts of the supporting ring jacket are cooled from a cooling line, without contacting the cooling medium.
  • the advantage of this is not just the possibility of reducing the required Coolant amount while increasing the Flow rate, but also leaving free areas for the purpose of checking the support ring jacket, for example after cracks or the like.
  • stop the coolant supply for a short time without large amounts of water flowing in.
  • the inventors furthermore propose to include part of the support ring jacket to be included in the cooling system.
  • Pipe profiles are used for this like half pipe, angle and U profile. These can be done using simple Connect the welds intimately to the support ring jacket.
  • a cooling block which for example made of aluminum and connected to each other Has holes. This block is against the contact mass Inner surface of the support ring pressed. It is also proposed that Split coolant guides into separate cooling circuits and separate them into to connect a control device. Through this measure, the Energy consumption can be reduced even further, since here the burden adapted the cooling can be started.
  • FIG 1 is a cutout with a refractory lining 12 provided converter jacket 11 of the converter 10 is shown.
  • a converter support ring 20 is arranged at a distance from the converter 10 the transverse pod 26 connected to the support ring jacket 21 has.
  • At the Inner surface 22 is on the upper flange 23, on the lower flange 25 and on the Converter 10 facing inside 24 of the support ring jacket 21 a Pipe coil 31 is provided.
  • FIG. 2 shows various embodiments of this tube coil, which is designed as a tube profile 32 and, in the examples shown, is attached to the inside 24 of the support ring jacket 21.
  • the tubular profile 32 is designed as a square 33, which is welded to the inside 24 and is connected to the latter via a contact mass 41 in terms of heat flow.
  • an angle 34, a half-tube 35 and a U-profile 36 are shown, the free ends of the profiles being connected to the inside 24 and forming the tube profile 32 with it.
  • a block 37 is shown in which bores 38 are made. The block 37 is connected to the inside 24 of the support ring jacket 21 via a contact mass 41.
  • FIG. 3 shows a longitudinal section through the upper chord 23 and the lower chord 25 and the transverse pod 26 of the support ring 20.
  • the meandering course of the pipe coil 31 is shown in a top view, namely in the left side of the cooling circuit K1 with a substantially vertical flow direction and the right side of the cooling circuit K2 with an essentially horizontal cooling coil guide.
  • the cooling circuits K1 and K2 are connected to a control and regulating device 54, which have a safety valve 51, a pressure switch 52 and a temperature sensor 53.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • General Induction Heating (AREA)
  • Discharge Heating (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (7)

  1. Bague de support de convertisseur refroidie, constituée d'une enveloppe d'acier ayant une surface interne, qui, agencée à distance du convertisseur, entoure celui-ci et qui est raccordée à un poste d'alimentation en fluide de refroidissement,
    caractérisée en ce que, sur la surface interne (22) de l'enveloppe d'acier (21), généralement sur la face interne (24), en regard du convertisseur, de la bague de support de convertisseur (20), il est prévu un serpentin (31), disposé en forme de méandre, traversé par un fluide de refroidissement liquide, et en ce que la distance (a) de deux serpentins voisins (31), relativement à leurs axes médians (I), vaut au moins deux fois leur diamètre (D), et en ce que, s'agissant du serpentin (31), une partie du profil tubulaire (32) est formée par la surface interne (22) de l'enveloppe de bague de support (21).
  2. Bague de support de convertisseur refroidie selon la revendication 1,
    caractérisée en ce que la surface interne (22), formant la paroi commune du serpentin (31), de la bague de support de convertisseur (20) correspond, en section transversale, à la périphérie UT < 0,7 UR, UT étant la périphérie formée par la surface interne de la bague de support et UR étant la périphérie restante du profil tubulaire (32).
  3. Bague de support de convertisseur refroidie selon la revendication 1,
    caractérisée en ce que le serpentin (31) est formé par des perçages (38) dans un bloc de refroidissement (37), le bloc de refroidissement (37) étant relié, par l'intermédiaire d'une masse de contact (41), sur toute la surface, à la surface interne (22) de la bague de support de convertisseur (20).
  4. Bague de support de convertisseur refroidie selon la revendication 3,
    caractérisée en ce que le bloc de refroidissement (37) est en aluminium.
  5. Bague de support de convertisseur refroidie selon la revendication 3,
    caractérisée en ce que la masse de contact (41) est une pâte ayant une conductibilité élevée.
  6. Bague de support de convertisseur refroidie selon une des revendications précitées,
    caractérisée en ce que le guide de fluide de refroidissement (30) est subdivisé en circuits séparés de refroidissement (K1-Kn).
  7. Bague de support de convertisseur refroidie selon la revendication 6,
    caractérisée en ce que les circuits de refroidissement (individuels (K1,K2...Kn) sont raccordés à un circuit de réglage (50) et sont surveillés par des soupapes de sécurité (51), des contrôleurs de pression (52) et des capteurs de température (53) et peuvent être commandés en ce qui concerne leur quantité de fluide de refroidissement.
EP95250136A 1994-06-20 1995-06-08 Anneau de support refroidi pour un convertisseur Expired - Lifetime EP0688876B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4423334 1994-06-20
DE4423334A DE4423334C1 (de) 1994-06-20 1994-06-20 Gekühlter Konvertertragring

Publications (3)

Publication Number Publication Date
EP0688876A2 EP0688876A2 (fr) 1995-12-27
EP0688876A3 EP0688876A3 (fr) 1997-01-29
EP0688876B1 true EP0688876B1 (fr) 1999-07-28

Family

ID=6522167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95250136A Expired - Lifetime EP0688876B1 (fr) 1994-06-20 1995-06-08 Anneau de support refroidi pour un convertisseur

Country Status (5)

Country Link
US (1) US5611990A (fr)
EP (1) EP0688876B1 (fr)
JP (1) JPH083617A (fr)
AT (1) ATE182629T1 (fr)
DE (2) DE4423334C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5853656A (en) * 1997-07-08 1998-12-29 Bethlehem Steel Corporation Apparatus and method for cooling a basic oxygen furnace trunnion ring
CA2427409C (fr) * 2003-05-01 2007-03-20 Whiting Equipment Canada Inc. Systeme de refroidissement d'anneau a tourillon et de convertisseur de four metallurgique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE338307C (de) * 1921-06-15 Georg Sippel Stativ
AT225215B (de) * 1961-03-15 1963-01-10 Voest Ag Kühleinrichtung zur Kühlung der hohlen Dreh - bzw. Tragzapfen an Tragringen von Tiegeln zum Frischen von Roheisen
DE1458847A1 (de) * 1965-07-22 1969-01-30 Demag Ag Muendungsring fuer metallurgische Gefaesse,insbesondere Konverter
AT338307B (de) * 1973-07-23 1977-08-25 Voest Ag Metallurgisches gefass, insbesondere konverter
DE3333841C1 (de) * 1983-09-20 1984-08-30 Mannesmann AG, 4000 Düsseldorf Metallurgisches Gefaess,insbesondere stationaerer oder auswechselbarer Stahlwerkskonverter
DE3927928A1 (de) * 1989-08-24 1991-02-28 Gutehoffnungshuette Man Luftkuehlsystem fuer in einem tragring gelagerte metallurgische gefaesse

Also Published As

Publication number Publication date
DE4423334C1 (de) 1995-10-05
DE59506455D1 (de) 1999-09-02
ATE182629T1 (de) 1999-08-15
EP0688876A2 (fr) 1995-12-27
JPH083617A (ja) 1996-01-09
EP0688876A3 (fr) 1997-01-29
US5611990A (en) 1997-03-18

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