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US3495812A - Apparatus for removing and handling covers for converters or crucibles and for renewing the refractory lining - Google Patents

Apparatus for removing and handling covers for converters or crucibles and for renewing the refractory lining Download PDF

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Publication number
US3495812A
US3495812A US431875A US3495812DA US3495812A US 3495812 A US3495812 A US 3495812A US 431875 A US431875 A US 431875A US 3495812D A US3495812D A US 3495812DA US 3495812 A US3495812 A US 3495812A
Authority
US
United States
Prior art keywords
car
cover
converters
crucibles
renewing
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
US431875A
Other languages
English (en)
Inventor
Peter Puxkandl
Gunther Bauerecker
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 US3495812A publication Critical patent/US3495812A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids or removable covers
    • 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
    • C21C5/4686—Vehicles for supporting and transporting a converter vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M7/00—Doors

Definitions

  • This invention relates to an apparatus for removing and handling covers for converters or crucibles and for renewing the refractory lining.
  • Crucibles and converters for refining processes and the like are provided with a flue or fixtures through which the waste gases from the converter are discharged or sucked oil.
  • a flue or fixtures through which the waste gases from the converter are discharged or sucked oil.
  • Only small converters can be moved on wheels out of the blowing station to a separate relining station. It is not possible, as a rule, to erect a crucible in the range of a crane, by which the cover can be removed and the refractory material for relining can be supplied, because the flue or other stationary fixture leaves no free space above the crucible.
  • the invention is characterized by a U-shaped car, which is movable on a path from the range of a crane outside the blowing station to the working position on the converter on the level of the top portion thereof, a segment member, which is detachably securable to the car and together with the limbs and the base of the U- shaped car forms a working platform, which surrounds the crucible, a carrying frame, which is also U-shaped and adapted to be mounted on the car and to support the cover when the latter has been lifted, and a relining frame adapted to be connected to the car.
  • the semicircular carrying frame may comprise two diametrically opposite main trunnions and at right angles to them an auxiliary trunnion; these trunnions are adapted to be supported on appropriately arranged bearing brackets on the car.
  • Hydraulic jacks spaced around the periphery of the converter are preferably provided for lifting the cover. When the cover has been lifted, these jacks enable the movement of the car to a position in which the carrying frame thereon is between the converter or crucible and its cover.
  • the relining frame may comprise supports, which are adapted to be detachably secured to the car, a track which is adapted to protrude into the flue beyond the centre of the crucible, and means for lifting and handling the refractory .material.
  • an auxiliary working platform consisting of detachable parts is formed around the top portion of the crucible below the peripheral joint between the mouth of the converter and the cover, the means for fastening the cover, such as screws or wedges, are released, the cover is lifted to a position from which it can be moved on a car into the range of a crane, the cover is lifted from the car and moved to a separate relining station, and a working frame for supplying refractory material is mounted on the car :and moved to a working position above the mouth of the crucible.
  • FIGS. 1, 2, 4, 5, 6 and 7 are side elevations showing the crucible and the relining apparatus according to the invention in different phases of the relining process.
  • FIGS. 3 and 8 are top plan views illustrating also different phases of the lining process.
  • FIG. 9 is a top plan view showing the carrying frame.
  • a cylindrical crucible 1 is provided with a cover 2, which is secured by holdingdown bolts 3 spaced around the periphery.
  • the stationary flue 4 is disposed above the opening 5 in the cover.
  • the top portion 6 of the crucible 1 is frusto-conical and flanked by two tracks 7, which comprise rails 8.
  • Recesses 9 formed by ribs and brackets are provided around the periphery of the top portion 6 of the crucible. Hydraulic jacks 10 (see FIGS. 2 and 5) can be inserted into these recesses.
  • a U-shaped car 12 which is movable on rollers 11, can be moved by means of an existing crane from the area 13 outside the blowing station and placed onto the track 7, and by a drive mounted on the car can be moved so closely to the crucible that the limbs 14 (FIG. 3) embrace the crucible.
  • a segment member 15 can be detachably secured to the limbs 14 of the car and may consist of two parts 15a and 15b, which can be swung to the position shown in FIG. 3.
  • the base 16 of the U-shaped car, its two limbs 14 and the segment 15 form now an auxiliary working platform, which completely surrounds the top portion (FIGS. 2 and 3) and can be walked upon to facilitate the release of the bolts 3 and the application of the hydraulic jacks 10..
  • the auxiliary working platform is dismantled and the car 12 is moved into the range 13 of the crane.
  • a semicircular carrying frame 17 provided with diametrically opposed main trunnions 18 and an auxiliary trunnion 19 is placed by the crane on the car 12.
  • the trunnions 18 are received by the bearing brackets 20 and 21.
  • the car 12 carrying the frame 17 is now moved back to the converter, as is shown in FIG. 5.
  • the cover of the crucible is then lowered onto the carrying frame 17 and the car is moved away from the crucible, as is shown in FIG. 6.
  • the car picks up the carrying frame and the cover and moves them to a relining station.
  • the cover may be tilted with the aid of the carrying frame 17 to enable its relining from above or below.
  • FIG. 7 shows the next phase of the relining process.
  • a relining frame comprising supports 22, 23 and the track 24 is secured to the car 12 and is moved to a working position above the centre of the converter.
  • a lifting and handling means 25 is mounted on the track and serves for supplying the refractory materials 26 from the platform adjacent to the furnace.
  • Apparatus for removing and handling covers for metallurgical vessels and for renewing their refractory lining comprising a U-shaped car which is movable on a path from the range of a crane disposed at a distance from said vessel to a working position on said vessel on the level of the top portion thereof, a segment member which is detachably securable to said car and together with the limbs and the base of said car forms a working platform which surrounds said vessel, a carrying frame which is also U-shaped and adapted to be mounted on said car and to receive said cover after the same has been lifted, and a relining frame adapted to be connected to said car.
  • the U- shaped carrying frame comprises two diametrically opposite main trunnions and at right angles to them an auxiliary trunnion, said trunnions being adapted to be supported in appropriately disposed bearing brackets on the car.
  • Apparatus for removing and handling covers for metallurgical vessels and for renewing their refractory lining comprising hydraulic jacks for lifting said cover spaced around the periphery of said vessel, a U-shaped car which is movable on a path from the range of a crane disposed at a distance from said vessel to a working position on said vessel on the level of the top portion thereof, a segment member which is detachably securrelining frame comprises supports which are adapted to be detachably secured to the car, a track which is adapted to protrude into the flue beyond the center of the vessel, and means for lifting and handling refractory material.

Landscapes

  • 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)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
US431875A 1964-02-13 1965-02-11 Apparatus for removing and handling covers for converters or crucibles and for renewing the refractory lining Expired - Lifetime US3495812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT121764A AT249720B (de) 1964-02-13 1964-02-13 Vorrichtung zum Ausbau und zum Transport von Deckeln für Konverter oder Tiegel sowie zur Erneuerung des feuerfesten Mauerwerks sowie Neuzustellungsverfahren für solche Konverter unter Verwendung dieser Vorrichtung

Publications (1)

Publication Number Publication Date
US3495812A true US3495812A (en) 1970-02-17

Family

ID=3509133

Family Applications (1)

Application Number Title Priority Date Filing Date
US431875A Expired - Lifetime US3495812A (en) 1964-02-13 1965-02-11 Apparatus for removing and handling covers for converters or crucibles and for renewing the refractory lining

Country Status (6)

Country Link
US (1) US3495812A (pt)
AT (1) AT249720B (pt)
BE (1) BE659596A (pt)
DE (1) DE1458951A1 (pt)
GB (1) GB1043022A (pt)
LU (1) LU47945A1 (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854709A (en) * 1973-07-13 1974-12-17 Gaw M Containment of dust and fumes from a metallurgical vessel
US4561638A (en) * 1984-01-09 1985-12-31 Voest-Alpine Aktiengesellschaft Installation with a refractorily lined metallurgical vessel
CN104060027A (zh) * 2013-10-15 2014-09-24 攀钢集团攀枝花钢铁研究院有限公司 一种抗高温组合平台

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT266894B (de) * 1966-08-02 1968-12-10 Voest Ag Konverteranlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933918A (en) * 1958-06-18 1960-04-26 Anderson Constr Corp A E Method of lining furnaces
GB922998A (en) * 1960-02-19 1963-04-03 Demag Ag Improvements in metallurgical converters
US3215425A (en) * 1953-12-28 1965-11-02 Kaiser Ind Corp Metallurgical apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215425A (en) * 1953-12-28 1965-11-02 Kaiser Ind Corp Metallurgical apparatus
US2933918A (en) * 1958-06-18 1960-04-26 Anderson Constr Corp A E Method of lining furnaces
GB922998A (en) * 1960-02-19 1963-04-03 Demag Ag Improvements in metallurgical converters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854709A (en) * 1973-07-13 1974-12-17 Gaw M Containment of dust and fumes from a metallurgical vessel
US4561638A (en) * 1984-01-09 1985-12-31 Voest-Alpine Aktiengesellschaft Installation with a refractorily lined metallurgical vessel
CN104060027A (zh) * 2013-10-15 2014-09-24 攀钢集团攀枝花钢铁研究院有限公司 一种抗高温组合平台
CN104060027B (zh) * 2013-10-15 2016-01-20 攀钢集团攀枝花钢铁研究院有限公司 一种抗高温组合平台

Also Published As

Publication number Publication date
AT249720B (de) 1966-10-10
DE1458951A1 (de) 1969-04-30
GB1043022A (en) 1966-09-21
LU47945A1 (pt) 1965-04-09
BE659596A (pt) 1965-05-28

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