US3357691A - Releasable bearing for crucibles or converters - Google Patents

Releasable bearing for crucibles or converters Download PDF

Info

Publication number
US3357691A
US3357691A US398675A US39867564A US3357691A US 3357691 A US3357691 A US 3357691A US 398675 A US398675 A US 398675A US 39867564 A US39867564 A US 39867564A US 3357691 A US3357691 A US 3357691A
Authority
US
United States
Prior art keywords
vessel
crucible
carrier
ring
trunnion ring
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
US398675A
Other languages
English (en)
Inventor
Metz Paul
Puxkandl Peter
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
Application filed by Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3357691A publication Critical patent/US3357691A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C21C5/50—Tilting mechanisms for converters
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/10—Slag pots; Slag cars
    • 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
    • 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

  • This invention relates to a releasable support for metal refining vessels including a trunnion ring having at least an inner periphery of polygonal cross-section including a plurality of sides and corners for supporting a refining vessel having upper and lower pairs of supports thereon which engage the sides of the trunnion ring in one rotated position of the refining vessel relative to the ring and are free of engagement with the trunnion ring when the supports on the refining vessel are rotated into substantial alignment with the corners of the polygonal periphery to enable the refining vessel either to be lifted out of or lowered through the trunnion ring.
  • a carrying ring is arranged around the shell approximately in the height of the center of gravity, so
  • the crucible By means of electromechanic or hydraulic drives acting on the trunnions the crucible must be tiltable from the nearly vertical blowing position to the bottom-up position for emptying and back again.
  • the crucible is supported on the carrying ring by means of a number of claws spaced around the periphery of the shell of the crucible and suitably arranged in pairs.
  • these claws consist of angular brackets fixed to the crucible shell with a flange or leg, while the other flange or leg projecting from the crucible wall rests against the carrier ring on the top and bottom surfaces thereof.
  • the object of the present invention is to provide a carrier body construction which is improved in comparison with the open frame in static respects and allows an exchangeable or releasable bearing of crucibles or converters, at the same time guaranteeing an equally high operational safety during tilting and emptying of the crucible, as has been the case with roundabout closed, nonremovable carrier constructions.
  • This object of the invention is achieved by means of a closed carrier body arranged around the periphery of the crucible, on which the crucible is supported by means of supporting means.
  • the refining vessel is turnable within the carrier body, the crucible being suspendible into and engaging with the carrier body in at least one angular position and releasable from the suspended position in at least one other angular position.
  • This detachable mounting of the crucible in the carrier ring is advantageously accomplished by such a shape of the carrier body, approximating the shape of a triangle, a square or a polygon, that the carrier ring will abut on or be adjacent to at least three, preferably four, points spaced around the periphery of the crucible and defined by the disposition of the supporting means (claws), whereas at the intermediate points there is such a distance between the carrier body and the crucible wall that in a suitably adjusted angular position the supporting means can pass through the space between the carrier body and the crucible wall.
  • the carrier ring has an approximately square shape with rounded-off corners, the clear diagonal interspace being larger than the outer diameter of the crucible plus the horizontal extension of the supporting means.
  • the lower series of supporting means provided on the crucible wall may suitably be designed as a series of flap brackets. This has the advantage of easy removal and that any jamming caused by heat warping, which would render the rotation of the crucible difiicult, is eliminated.
  • FIG. 1 shows three top views of blowing stands with carrier rings suspended in the frames and crucibles fixed therein, wherein the carrier rings have different shapes and are destined for a three-point, four-point and multi-point support.
  • vFIG. 2. illustrates in six successive phases, a, b, c, d, e and f, the replacement of a crucible from a carrier construction and the removal to the relining stand by means of a transporting and lifting car.
  • numeral 1 denotes the carrier ring; according to FIG. in it approximates the shape of a triangle, according to FIG. 1b that of a square and according to FIG. it that of a hexagon, each with rounded-off corners.
  • the carrier ring is connected with two trunnions 2 and 3, which are supported in the bearings 4 and 5.
  • Numeral 6 designates the connecting shaft to the tilting drive 7.
  • the crucible is secured by means of three pairs (FIG. 1a), four pairs (FIG. lb), or six pairs (FIG. 10), respectively, of supporting means 8 within the carrier ring 1.
  • the supporting means are designed as upper brackets or claws 9 and lower flap brackets 10 and but from above and below against the carrier ring 1 (FIG. 2a).
  • FIG. 2 illustrates the phases of replacement.
  • a transporting and lifting car H having a chassis 11, a carrier device 12, a frame 13 and thrustors 14 is moved under the crucible T.
  • the 3 thrustors which may, e.g., be designed as hydraulic rams, the frame 13 can be supported against the floor and lifted and lowered in the supported position together with the chassis and the carrier. device 12.
  • rier device which form a unit together, are furthermore rotatable horizontally within the frame 13.
  • the hydraulic rams are extended, the chassis and carrier device are lifted until they come off the rails and turned through the angle of release, which, when using, e.g., a square carrier ring (FIG. 1c), amounts to 45.
  • the frame with the chassis and the carrier device is lifted further, after the flap brackets have been unlocked by hinging back, until the bottom part of the crucible is taken up by the carrier device, the bottom faces 15 of the lower claws being supported against the ring surface 16 of the carrier device. Further lifting follows, until the upper claws come to lie 150 mm. above the carrier ring 1.
  • FIG. 1c square carrier ring
  • chassis, carrier device and the crucible T resting thereon are then turned back.
  • the chassis now has the same direction as in FIG. 2a, whereas the crucible is turned, compared with the position in FIG. 1, by the angle of release.
  • FIG. 2e the frame with the chassis, the carrier installation and the crucible is lowered, until contact is again established with the rails.
  • the thrustors are retracted and the carrier ring 1 is tilted so that the transporting and lifting car can be moved out of the blowing stand with the crucible T in the direction of the arrow.
  • a releasable mounting for a refining vessel comprising a carrier body adapted to be disposed around the vessel and having an inner periphery of polygonal shape having sides and cornerstherebetween, at least three upper supporting means secured to the vessel in spaced relation therearound corresponding to the number of sides of said inner periphery and lower supporting means equal in number to said upper means secured to and in spaced relation around the vessel in alignment with said upper supporting means, said vessel being angularly displaceable with respect to said body from a first position wherein the medial portions of the sides of said inner periphery of said body are in engagement with said supporting means to support the vessel on said body into a second position wherein the sides of the body are clear of the upper supporting means to permit axial displacement between the body and the vessel.
  • a releasablemounting' for a refining vessel comprising a trunnion ring for supporting said vessel, said trunnion ring having an inner periphery of polygonal shape including substantially straight sides and connecting corners, pairs of upper and lower supporting members on said vessel extending outwardly therefrom, said supporting members overlapping said trunnion ring when said supporting members are directed toward said sides to support said vessel on said trunnion ring, and said supporting means being disposed inwardly of said corners to release said vessel from said trunnion ring when said vessel is rotated relative to said trunnion ring to direct said supporting members toward said corners.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Handcart (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
US398675A 1963-09-27 1964-09-23 Releasable bearing for crucibles or converters Expired - Lifetime US3357691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT778763A AT249718B (de) 1963-09-27 1963-09-27 Lösbare Lagerung für Tiegel oder Konverter

Publications (1)

Publication Number Publication Date
US3357691A true US3357691A (en) 1967-12-12

Family

ID=3599473

Family Applications (1)

Application Number Title Priority Date Filing Date
US398675A Expired - Lifetime US3357691A (en) 1963-09-27 1964-09-23 Releasable bearing for crucibles or converters

Country Status (8)

Country Link
US (1) US3357691A (fi)
AT (1) AT249718B (fi)
BE (1) BE650471A (fi)
DE (1) DE1433665A1 (fi)
FI (1) FI41654B (fi)
GB (1) GB1076226A (fi)
LU (1) LU46478A1 (fi)
NL (1) NL6403460A (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400922A (en) * 1965-04-12 1968-09-10 Demag Ag Metallurgical vessel construction
US3652071A (en) * 1970-04-16 1972-03-28 Voest Ag Tiltable converter supporting mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327078A (en) * 1939-06-05 1943-08-17 Teetor Herman Beverage set
US2754625A (en) * 1951-12-21 1956-07-17 Walter V Rasmussen Cemetery vase
US3000621A (en) * 1958-03-12 1961-09-19 Voest Ag Tiltable crucible or converter for refining crude iron
US3182979A (en) * 1963-02-26 1965-05-11 Pennsylvania Engineering Corp Furnace support structure
US3191922A (en) * 1961-10-17 1965-06-29 Voest Ag Bracket for supporting tiltable crucibles or converters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327078A (en) * 1939-06-05 1943-08-17 Teetor Herman Beverage set
US2754625A (en) * 1951-12-21 1956-07-17 Walter V Rasmussen Cemetery vase
US3000621A (en) * 1958-03-12 1961-09-19 Voest Ag Tiltable crucible or converter for refining crude iron
US3191922A (en) * 1961-10-17 1965-06-29 Voest Ag Bracket for supporting tiltable crucibles or converters
US3182979A (en) * 1963-02-26 1965-05-11 Pennsylvania Engineering Corp Furnace support structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400922A (en) * 1965-04-12 1968-09-10 Demag Ag Metallurgical vessel construction
US3652071A (en) * 1970-04-16 1972-03-28 Voest Ag Tiltable converter supporting mechanism

Also Published As

Publication number Publication date
AT249718B (de) 1966-10-10
LU46478A1 (fi) 1972-01-01
DE1433665A1 (de) 1968-10-10
NL6403460A (fi) 1964-09-25
BE650471A (fi) 1964-11-03
FI41654B (fi) 1969-09-30
GB1076226A (en) 1967-07-19

Similar Documents

Publication Publication Date Title
JPH03505625A (ja) シャフト状装填材料予熱装置付き溶解プラント
US4360304A (en) Extendable crane trolley and method
US3357691A (en) Releasable bearing for crucibles or converters
US4502527A (en) Single shop continuous casting facility
US3612739A (en) Dual electric furnace facility
US4755137A (en) Process and installation for maintaining the lining of a furnace shell
US3385588A (en) Releasable bearing for crucible or converter
US3679071A (en) Apparatus for use in lining vessels
US3256956A (en) Device for re-lining crucibles or converters
US2696663A (en) Converter supporting car
US3337205A (en) Tiltable crucible or converter for refining pig iron
US3149959A (en) Double chamber vacuum degassing method, apparatus, and ladle
US3362700A (en) Transporting and lifting car for refining vessels
US3495812A (en) Apparatus for removing and handling covers for converters or crucibles and for renewing the refractory lining
US3632094A (en) Processing and preheating scrap metal for furnace utilization
CN115354113A (zh) 一种炼钢转炉炉体的保护性拆除方法
US3652071A (en) Tiltable converter supporting mechanism
US3487957A (en) Charging apparatus
US3756584A (en) Vacuum degassing apparatus
US3869051A (en) Furnace charging apparatus
US3799527A (en) Suspension assembly for metal treating vessel
CN211218659U (zh) 一种悬臂式钢包加揭盖设备
US4588169A (en) Arrangement to be used with a tiltable metallurgical vessel
US5802098A (en) Melting vessel with fastening, mounting and tilting devices
US3486745A (en) Metallurgical furnace construction