US3831917A - Tiltable converter - Google Patents

Tiltable converter Download PDF

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Publication number
US3831917A
US3831917A US00339302A US33930273A US3831917A US 3831917 A US3831917 A US 3831917A US 00339302 A US00339302 A US 00339302A US 33930273 A US33930273 A US 33930273A US 3831917 A US3831917 A US 3831917A
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US
United States
Prior art keywords
converter
carrying
annular bearing
bodies
carrying bodies
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
US00339302A
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English (en)
Inventor
P Moser
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
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3831917A publication Critical patent/US3831917A/en
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
    • C21C5/4633—Supporting means

Definitions

  • the invention relates to a tiltable converter with a carrying ring surrounding at least part of the converter [21] Appl' 339302 jacket and supporting the converter by carrying means which take up the bearing and tiltin g forces, said car- [30] Foreign Application Priority Data rying means consisting of annular bearing lugs into Mar. 15, 1972 Austria which the Carrying bodies extend- The ann ular bearing lugs and the carrying bodies are connect of flange connections arranged at a dista converter jacket, so that between the flan tions and the converter jacket a hollo formed.
  • the screw connection is ea ble for tightening the screws, the can not overheated and the thermal ex disturbed.
  • the carrying means As angular pairs of claws, the flange or shield of the claw turned towards the converter jacket being screwed to the converter jacket and the projecting flange being screwed to the carrying ring.
  • the flange or shield of the claw turned towards the converter jacket being screwed to the converter jacket and the projecting flange being screwed to the carrying ring.
  • the fixing screws in the converter jacket for which purpose sunk head screws are used.
  • this kind of claw connection the bending moments are conveyed by the screw connection into the metal jacket.
  • one or more shearing elements must be provided. It has shown that this kind of carrying means has various faults. Thus, it is, e.g., impossible to maintain the necessary pretensions in the screws for a longer period of time.
  • the carrying bodies are formed as axle journals connected with the converter jacket, which extend into annular bearing bushes of the carrying ring. It is difflcult to secure these axle journals and a tire-shaped auxiliary carrying ring has to be used for this purpose. It is a further disadvantage that the axle journals get hotter than the bearing bushes of the carrying ring which surround the journals so that jamming may result and the bearings may be damaged. In this known construction the thermal stress and deformation of the converter vessel is by no means taken into account.
  • a further carrying construction with bearing lugs has become known from the French Pat. No. l 348 175 in which the carrying means are constructed as a plurality of bearing lugs which are arranged to lie radially in one plane and connected with the converter wall, and into which bolts extend which are connected with the carrying ring. Owing to the plurality of the suspension points it is not possible to calculate in the static condition the stresses and forces exerted on the converter and complicated adaptation and fitting in operations are necessary. Also, the problem of the free thermal expansibility of the converter vessel is not solved owing to the plurality of the bearing lugs and bearing bolts; in normal operation, e.g., during tapping, the converter is irregularly heated and thus irregularly deformed, so that jamming is unavoidable.
  • the invention is aimed at avoiding the described disadvantages and difficulties.
  • a converter with a carrying ring surrounding at least part of the converter jacket and supporting the converter by carrying means which absorb the pressure and tilting forces, said carrying means consisting of annular bearing lugs into which the carrying bodies extend the invention resides in that the annular bearing lugs and the carrying bodies are connected by means of flange connections arranged at a distance from the converter jacket, so that between the flange connections and the converter jacket a hollow space is formed.
  • the construction according to the invention has the advantage that owing to the hollow space between the flange connections and the converter jacket the carrying bodies are not overheated and the thermal expansibility is not disturbed.
  • annular bearing lugs are connected with the converter jacket via ribs arranged in stellar fashion without, however, themselves being in contact with the converter jacket.
  • ribs arranged in stellar fashion without, however, themselves being in contact with the converter jacket.
  • noses which extend into recesses in the annular bearing lugs,
  • a preferred embodiment of the construction according to the invention resides in that some, preferably three carrying means staggered to each other by comprising annular bearing lugs and carrying bodies extending into them are arranged around the circumference of the converter and the converter is rotatable in the carrying ring so that the supporting places of the carrying means may be changed.
  • This change is very simple since the exchange of planar flanges causes no difficulties and little fitting work is needed.
  • FIG. 1 is a front view
  • FIG. 2 is a plan view of a converter having an open, horseshoe shaped carrying ring.
  • FIG. 3 shows a lateral view of a carrying means
  • FIG. 4 is a sectional view along the line IV-IV of FIG. 3.
  • FIGS. 5 and 6 illustrate the manner in which the converter may be rotated.
  • numeral 1 denotes the converter vessel, which is surrounded by a carrying ring 2.
  • the carrying ring is designed as a horse-shoe shaped carrying ring.
  • the carrying ring is provided with rotation and tilting trunnions (not shown).
  • the carrying means according to the invention comprises the annular bearing lugs 3 which are connected with, e.g., welded to, the converter jacket 1 by means of ribs 4 which have a stellar arrangement.
  • these annular bearing lugs 3 have an angular cross section, i.e., they comprise a flange 5 which extends in parallel to the converter jacket 1, and the flange 5' which projects at right angles from the converter jacket.
  • This flange 5' which projects at right angles from the converter jacket is connected with the ribs 4 and thus via these ribs with the converter jacket 1.
  • the carrying body 6 has a hollow conically formed foot part 7 to which a trunnion 8 is joined.
  • the foot part is provided with an accentric ring-shaped part 9 and an annular flange 10 which is flatly apposed to the annular flange 5 of the part 3 of the carrying means.
  • the flanges 5 and are penetrated by bores for receiving the screws 11 which are tightened by means of nuts 12 so that the carrying body 6 is tightly connected with the bearing lug.
  • Numeral l3 denotes shims.
  • a nose 14 is provided on the foot part 7 of the carrying body, which nose extends into a recess of the ring 3 via wedges 15.
  • the nose and the transverse bar 16 are penetrated by a screw 17; by tightening the nuts 18 an adjustment without play is possible. Between the flange connections and the converter jacket the hollow space 19 remains free which has a heat insulating function.
  • FIG. 5 shows on exaggerated scale a converter vessel 1 which was deformed by thermal influences and has thus obtained an oval or elliptical form, whose longitudinal axis lies in the tilting plane.
  • These thermal influences may be caused, e.g., by non-uniform wear of the brick work and by the heat radiating from the casting ladle during tapping.
  • the vessel In order to counteract such deformation the vessel must be rotated in time so that supporting places are continuously changed.
  • the position of the vessel shown in FIG. 5 in which the carrying means are denoted with 3,3,3 and lie on the supporting places 20,20,20" has been changed in FIG.
  • a tiltable converter assembly comprising a converter
  • each carrying means comprising a plurality of ribs connected to the converter and an annular bearing lug connected to the plurality of ribs in such a way that a predetermined distance exists between the annular bearing lug and the converter, each annular bearing lug having a flanged portion, plurality of carrying bodies having one end supported on the carrying ring, each of the carrying bodies having a flanged portion at the other end mating with the flanged portion of one of the annular bearing lugs, the mating flanged portions of the carrying bodies and the annular bearing lugs being located at such a distance from the converter that a hollow space is formed between the carrying bodies and the converter, and fastening means for securely fastening the carrying bodies to the annular bearing lugs, the hollow spaces formed between the carrying bodies and the converter being wide enough to receive at least one part of the fastening means and to provide heat insulation of the carrying bodies from the converter.
  • a tiltable converter assembly having a safety means to protect against torsion forces, comprising a converter, 7
  • each carrying means comprising a plurality of ribs connected to the converter and an annular bearing lug connected to the plurality of ribs in such a way that a predetermined distance exists between the annular bearing lugs and the converter, each annular bearing lug having a flanged portion and a recess,
  • each of the carrying bodies having a flanged portion at the other end mating with the flanged portion of one of the annular bearing lugs and a nose which extends into and mates with said recess in said one of the bearing lugs, the mating flanged portions of the carrying bodies and the annular bearing lugs being located at such a distance from the converter that a hollow space is formed between the carrying bodies and the converter, and
  • fastening means for securely fastening the carrying bodies to the annular bearing lugs, the hollow spaces formed between the carrying bodies and the converter being wide enough to receive at least one part of the fastening means and to provide heat insulation of the carrying bodies from the converter.

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)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
US00339302A 1972-03-15 1973-03-08 Tiltable converter Expired - Lifetime US3831917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT217072A AT322127B (de) 1972-03-15 1972-03-15 Kippbarer tiegel oder konverter

Publications (1)

Publication Number Publication Date
US3831917A true US3831917A (en) 1974-08-27

Family

ID=3529219

Family Applications (1)

Application Number Title Priority Date Filing Date
US00339302A Expired - Lifetime US3831917A (en) 1972-03-15 1973-03-08 Tiltable converter

Country Status (11)

Country Link
US (1) US3831917A ( )
JP (1) JPS5156B2 ( )
AT (1) AT322127B ( )
BE (1) BE796698A ( )
CA (1) CA990071A ( )
DE (1) DE2311139C2 ( )
FI (1) FI55945C ( )
GB (1) GB1374953A ( )
LU (1) LU67213A1 ( )
SE (1) SE414190B ( )
ZA (1) ZA731663B ( )

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234171A (en) * 1977-09-29 1980-11-18 Voest-Alpine Aktiengesellschaft Mixing arrangement
US4456819A (en) * 1981-10-21 1984-06-26 Ballard Thomas B Adjustable welding furnace
CN101781696A (zh) * 2010-03-30 2010-07-21 中冶南方工程技术有限公司 球铰悬盘型转炉托圈与炉壳的连接装置
CN102985568A (zh) * 2010-07-07 2013-03-20 Posco公司 金属液容器的支撑装置
CN107202076A (zh) * 2017-05-26 2017-09-26 中冶南方工程技术有限公司 仿生重型连接爪

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017126153A1 (de) * 2017-11-08 2019-05-09 Sms Group Gmbh Aufhängevorrichtung für ein metallurgisches Gefäß zur Aufnahme von schmelzflüssigen Metallen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635458A (en) * 1968-10-15 1972-01-18 Voest Ag Tiltable crucible or converter
US3652071A (en) * 1970-04-16 1972-03-28 Voest Ag Tiltable converter supporting mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1348175A (fr) * 1963-02-15 1964-01-04 Zweigniederlassung Kolnbayenth Convertisseur comportant un support annulaire indépendant
FR89019E (fr) * 1964-11-23 1967-04-28 Fives Lille Cail Perfectionnement aux convertisseurs pour aciéries
AT271527B (de) * 1967-09-15 1969-06-10 Voest Ag Kippbarer Tiegel oder Konverter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635458A (en) * 1968-10-15 1972-01-18 Voest Ag Tiltable crucible or converter
US3652071A (en) * 1970-04-16 1972-03-28 Voest Ag Tiltable converter supporting mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234171A (en) * 1977-09-29 1980-11-18 Voest-Alpine Aktiengesellschaft Mixing arrangement
US4456819A (en) * 1981-10-21 1984-06-26 Ballard Thomas B Adjustable welding furnace
CN101781696A (zh) * 2010-03-30 2010-07-21 中冶南方工程技术有限公司 球铰悬盘型转炉托圈与炉壳的连接装置
CN101781696B (zh) * 2010-03-30 2011-09-28 中冶南方工程技术有限公司 球铰悬盘型转炉托圈与炉壳的连接装置
CN102985568A (zh) * 2010-07-07 2013-03-20 Posco公司 金属液容器的支撑装置
US9358610B2 (en) 2010-07-07 2016-06-07 Posco Device for supporting molten metal container
CN107202076A (zh) * 2017-05-26 2017-09-26 中冶南方工程技术有限公司 仿生重型连接爪

Also Published As

Publication number Publication date
JPS48103007A ( ) 1973-12-24
ZA731663B (en) 1974-03-27
SE414190B (sv) 1980-07-14
GB1374953A (en) 1974-11-20
CA990071A (en) 1976-06-01
JPS5156B2 ( ) 1976-01-05
DE2311139A1 (de) 1973-09-20
LU67213A1 ( ) 1973-05-22
AT322127B (de) 1975-05-12
DE2311139C2 (de) 1984-05-10
FI55945B (fi) 1979-07-31
BE796698A (fr) 1973-07-02
FI55945C (fi) 1979-11-12

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