US3350082A - Tiltable support mechanism for crucible or converter - Google Patents

Tiltable support mechanism for crucible or converter Download PDF

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Publication number
US3350082A
US3350082A US465460A US46546065A US3350082A US 3350082 A US3350082 A US 3350082A US 465460 A US465460 A US 465460A US 46546065 A US46546065 A US 46546065A US 3350082 A US3350082 A US 3350082A
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US
United States
Prior art keywords
crucible
supporting
supporting structure
tilting
shell
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
US465460A
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English (en)
Inventor
Lambrecht Josef
Stadlmann Georg
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
Voest 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
Priority claimed from AT556564A external-priority patent/AT252975B/de
Application filed by Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3350082A publication Critical patent/US3350082A/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
    • 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
    • C21C5/50—Tilting mechanisms for converters

Definitions

  • tilta'ble crucibles or converters which comprise a supporting structure extending round the shell of the crucible and mounted between protruding flanges of pairs of brackets spaced around the periphery of the crucible.
  • a three-point support for such crucibles has been proposed, wherein only three supporting elements having the form of pairs of brackets are provided for taking up bearing forces. This construction is statically determinate; thus an exact calculation of the stresses is possible.
  • the present invention has in view a statically deterniinate crucible bearing construction, from which and into which, respectively, a crucible or converter can be moved in or out without lifting; the transfer of the crucible from a crucible stand to a transport car or vice versa, thus should be performed without lifting or lowering crucible.
  • the supporting element in the plane of tilting and the supporting elements in a plane perpendicular to the plane of tilting are arranged on opposite sides of the supporting structure (upper and bottom side, respectively); suitably the supporting elements may be held by so-called hinged brackets as is specified in the following.
  • the two supporting elements being perpendicular to the plane of tilting of the crucible may bear against the part connecting the shanks of the U-shaped part. It also is possible that all three supporting elements bear against the U-shaped part of the supporting structure, the part connecting the two shanks of the 'U-s'haped part being rigidly mounted on the crucible shell.
  • FIG. 1 is a lateral view of the supporting structure with inserted crucible and a transport car moving under the crucible
  • FIG. 2 is a plan view of the supporting structure
  • FIG. 3 is a showing of the supporting structure as viewed in the direction of arrow A in FIG. 1
  • FIGS. 4 and 5 illsutrate the detachment of the supporting structure from the crucible after the crucible has been taken up by the transport car, FIG. 5 again representing the supporting structure as viewed in the direction of arrow A in FIG. 4.
  • FIGS. 6, 7 and 8 show a modified embodiment of the supporting structure represented in the same way as in 'FIGS. 1 to 3.
  • numeral 1 designates the crucible
  • 2 is a supporting structure extending round the shell of the crucible and comprising, as shown in FIG. 2, a U-shaped part 3 and a part 5 detachably secured to the shanks 4, 4' of the U-shaped part and connecting these shanks.
  • the supporting structure 3 and the connecting part 5 may suitably be formed from a troughor box-shaped profile.
  • Numerals 6 and 6' denote the trunnions rigidly connected to the supporting structure, on which trunnions the tilting drive 20 acts.
  • the crucible 1 is supported on the supporting structure 3 by means of a supporting element 7 fixed to the crucible shell and arranged in the plane of tilting K and by means of two further supporting elements 8 and 9 forming the ends of the connecting part 5, which is in turn mounted on the opposite crucible wall.
  • These two supporting elements 8 and 9 are arranged eccentrically to the crucible axis in a plane perpendicular to the plane of tilting so that the radial planes (drawn in dashes) through the supporting elements are inclined at angles of about 120 to each other.
  • the supporting element 7 is arranged on the bottom side of the supporting structure 3 (cf. of FIG. 3), whereas the supporting elements 8 and 9 are located on the upperside of the shanks 4, 4 of the supporting structure (FIG. 1).
  • All three supporting elements are designed as journals or bolts. They are inserted in correspondingly shaped (U- shaped) recesses 10 of the supporting structure 3, that is, of the shanks 4, 4', and fixed by means of pivotable flap elements 11. Fastening elements of that kind which are mounted to be hingea-ble on one end and are adapted to be secured on the other end by means of screws 21 on suchlike in a locking position, also are called hinged brackets.”
  • a transport car 12, running by means of wheels 13 on rails, is movable under the crucible. The transport car is provided with a number of, e.g.
  • pivotable supporting means 14 which, after the transport car has been moved under the crucible, may be brought in engagement with the crucible wall and then fastened by means of suitable fastening elements, which may be designed, for instance, as tension screws 15 having corresponding counter-nuts 16, which pass through a slot of the supporting means and are pivotably fixed with one end to the transport car.
  • FIGS. 6, 7 and 8 A modified embodiment of the invention is shown in FIGS. 6, 7 and 8.
  • part is detachably, but rigidly connected to the shanks 4, 4' of the U-shaped part, e.g., by means of threaded bolts 18 or the like.
  • All three supporting elements are designed as bolts 9 rigidly connected to the wall, again one being arranged in the plane of tilting K and the other being located eccentrically to the crucible axis in a plane perpendicular to the plane of tilting. Fastening of the bolts 9 on the supporting structure 3, 5 is effected in the same manner as in FIGS. 1 to 5 by means of hinged brackets. Also the removal and the installation, respectively, of the crucible is analogous. The only additional measure is that the connecting part 5 has to be detached from the supporting structure before the crucible is moved out.
  • a tiltable crucible for refining crude iron comprising a crucible shell of substantially circular cross-section, a U-shaped supporting structure for said shell having a closed base and spaced-apart shanks, axially aligned spaced trunnions extending outwardly from said supporting structure substantially diametrically of said shell, and three supporting elements arranged to support said shell on said supporting structure, one supporting element being arranged in the plane of tilting of the crucible passing through the longitudinal axis thereof and extending across said base on one side of said supporting member, and two further supporting elements being arranged in a plane perpendicular to the plane of tilting eccentrically of the crucible axis extending across said shanks on the opposite side of said supporting member from said one supporting element and means detachably connecting said supporting elements to said supporting structure, said supporting structure being detachable from the crucible by tilting, without any vertical movement of the latter.
  • a crucible as set forth in claim 1, wherein said detachable connecting means comprises hinged brackets on said supporting structure.
  • a crucible as set forth in claim 1, comprising a rigid member fixed to said crucible, said two further supporting elements being mounted on said rigid member and recesses in said base and shanks receiving said supporting elements.
  • a crucible as set forth in claim 3, comprising means for rigidly connecting said two further supporting eleto said shanks of said supporting member.
  • a crucible as set forth in claim 1 wherein said means for detachably connecting said supporting elements to said supporting member comprises recesses in the upper and lower surfaces of said supporting member for receiving said supporting elements, brackets hingedly connected to said supporting member movable into engagement with said supporting elements to retain them in said notches and movable out of engagement with said supporting elements to release them, and means for releasably retaining said brackets in engagement with said supporting elements.

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  • 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)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
US465460A 1964-06-29 1965-06-21 Tiltable support mechanism for crucible or converter Expired - Lifetime US3350082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT556564A AT252975B (de) 1964-06-29 Kippbarer Tiegel oder Konverter zum Frischen von Roheisen

Publications (1)

Publication Number Publication Date
US3350082A true US3350082A (en) 1967-10-31

Family

ID=3577191

Family Applications (1)

Application Number Title Priority Date Filing Date
US465460A Expired - Lifetime US3350082A (en) 1964-06-29 1965-06-21 Tiltable support mechanism for crucible or converter

Country Status (4)

Country Link
US (1) US3350082A (enrdf_load_stackoverflow)
BE (1) BE666042A (enrdf_load_stackoverflow)
GB (1) GB1114902A (enrdf_load_stackoverflow)
LU (1) LU48805A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1946246A1 (de) * 1968-10-08 1970-07-16 Voest Ag Konverter mit einseitig offenem bzw. teilbarem Tragkoerper
US3601383A (en) * 1967-09-22 1971-08-24 Demag Ag Supporting arrangement for vessels used in metallurgical processing involving heat
US3652071A (en) * 1970-04-16 1972-03-28 Voest Ag Tiltable converter supporting mechanism
US4049249A (en) * 1975-03-12 1977-09-20 Vereinigte Osterreichische Eisen - Und Stahlwerke - Alpine Montan Aktiengesellschaft Tiltable converter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1226653A (en) * 1916-06-26 1917-05-22 Max W Goldberg Crucible-holder.
DE825455C (de) * 1949-02-24 1951-12-20 Berlin Anhaltische Maschb A G Giesspfannenlagerung
US3239206A (en) * 1962-05-15 1966-03-08 Voest Ag Tiltable crucible for refining crude iron

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1226653A (en) * 1916-06-26 1917-05-22 Max W Goldberg Crucible-holder.
DE825455C (de) * 1949-02-24 1951-12-20 Berlin Anhaltische Maschb A G Giesspfannenlagerung
US3239206A (en) * 1962-05-15 1966-03-08 Voest Ag Tiltable crucible for refining crude iron

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601383A (en) * 1967-09-22 1971-08-24 Demag Ag Supporting arrangement for vessels used in metallurgical processing involving heat
DE1946246A1 (de) * 1968-10-08 1970-07-16 Voest Ag Konverter mit einseitig offenem bzw. teilbarem Tragkoerper
US3652071A (en) * 1970-04-16 1972-03-28 Voest Ag Tiltable converter supporting mechanism
US4049249A (en) * 1975-03-12 1977-09-20 Vereinigte Osterreichische Eisen - Und Stahlwerke - Alpine Montan Aktiengesellschaft Tiltable converter

Also Published As

Publication number Publication date
BE666042A (enrdf_load_stackoverflow) 1965-10-18
GB1114902A (en) 1968-05-22
LU48805A1 (enrdf_load_stackoverflow) 1965-08-10

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