US3230685A - Apparatus for preventing accidents during repair work in a converter - Google Patents

Apparatus for preventing accidents during repair work in a converter Download PDF

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Publication number
US3230685A
US3230685A US281162A US28116263A US3230685A US 3230685 A US3230685 A US 3230685A US 281162 A US281162 A US 281162A US 28116263 A US28116263 A US 28116263A US 3230685 A US3230685 A US 3230685A
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US
United States
Prior art keywords
converter
lining
accidents during
vessel
work
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
US281162A
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English (en)
Inventor
Heinrich J W Tiefenthal
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.)
Beteiligungs und Patentverwaltungs GmbH
Original Assignee
Beteiligungs und Patentverwaltungs GmbH
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 Beteiligungs und Patentverwaltungs GmbH filed Critical Beteiligungs und Patentverwaltungs GmbH
Application granted granted Critical
Publication of US3230685A publication Critical patent/US3230685A/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
    • C21C5/44—Refractory linings
    • 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
    • C21C5/44—Refractory linings
    • C21C5/441—Equipment used for making or repairing linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P1/00—Safety devices independent of the control and operation of any machine

Definitions

  • the present invention relates to an apparatus for prevention of accidents during performing of work in converters and similar vessels equipped with a lining.
  • Converters for the steel production consists, as is well known, of substantially cylindrical vessels, which are, however, narrowed down in upward direction, in their upper portion, so that the danger exists that loosening parts of the refractory lining fall out in the inclined portion of the converter wall. If this should take place during performing of work in the converter, for instance, during fettling the furnace, the workers operating in the converter are endangered by the falling parts of the refractory lining.
  • the converter vessel comprises substantially an iron shell 1 having a refractory lining 2. Since the converter vessel is narrowed in upward direction in its upper part, it has in this frustoconically shaped portion an overhanging wall 3.
  • a conical, ring-shaped body 4 which lends itself to be blown up, is mounted in the vessel, which hollow body 4 is adapted as to shape to the conical upper portion of the converter vessel and is there blown up.
  • the conical ring-shaped body 4 which engages tightly the overhanging wall 3 and prevents the falling down of parts of the refractory lining.
  • the blowing up takes place by means of a hose 5, in which a pressure controlling valve 6 is disposed.
  • the hollow body 4 is suspended from a rigid ring 7, which in turn is supported by a cable 8, and the latter is adapted to lift and lower, respectively, the hollow body 4 into and out of the converter vessel.
  • a pressure controlling valve 6 is disposed.
  • the hollow body 4 collapses. This result is enhanced by 3,230,685 Patented Jan. 25, 1966 "ice chains 9 which are secured to the lower end of the hollow body 4.
  • the latter assumes the approximate configuration shown in point-dotted lines, the collapsed body being indicated as a member 4 and the chain 9 assumes then the position as shown as 9.
  • the hollow body 4 can then be lifted through the throat 10 of the converter 1.
  • the hollow body 4, which lends itself to be blown up can be made of a double-walled textile material, however, also of artificial material or any other suitable material.
  • the apparatus designed in accordance with the present invention, is not only suitable for converters, rather it can be used always in such situations, where work is performed in a lined vessel and the danger exists that parts of the lining get loose and the workers are endangered.
  • An apparatus for preventing accidents during the performance of work in a vessel having an inner, overhanging, substantially frusto-conical upper wall, equipped with a lining, comprising a flexible, hollow, annular body of substantially frustoconical outer shape in its operative position,
  • said flexible, hollow body including means permitting said body to be blown up and to collapse, respectively, and,
  • said flexible, hollow body being adapted to removably engage the lining of the upper Wall of said vessel in its operative position, so as to prevent loosened portions of the lining from falling down, and to be collapsed in its inoperative position, whereby said body is withdrawn upon completion of the work.
  • FRANK L. ABBOTT Primary Examiner.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
US281162A 1962-06-01 1963-05-17 Apparatus for preventing accidents during repair work in a converter Expired - Lifetime US3230685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0067510 1962-06-01

Publications (1)

Publication Number Publication Date
US3230685A true US3230685A (en) 1966-01-25

Family

ID=6975547

Family Applications (1)

Application Number Title Priority Date Filing Date
US281162A Expired - Lifetime US3230685A (en) 1962-06-01 1963-05-17 Apparatus for preventing accidents during repair work in a converter

Country Status (3)

Country Link
US (1) US3230685A (https=)
GB (1) GB980567A (https=)
LU (1) LU43777A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479637A (en) * 1982-09-01 1984-10-30 National Steel Corporation Apparatus for and method of repairing bottom lining of a converter
US5958312A (en) * 1994-02-03 1999-09-28 Dolomitwerke Gmbh Process for the partial reconstruction of the refractory lining of the wall of steel casting ladles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1272206B (it) * 1994-04-15 1997-06-16 Ilva Laminati Piani Dispositivo per la protezione del personale durante la manutenzione del rivestimento interno di convertitori, camini e simili.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558910A (https=) *
US2949658A (en) * 1956-10-03 1960-08-23 American Marietta Co Means for forming voids in precast concrete structural members
US2985419A (en) * 1957-04-13 1961-05-23 Mining Engineering Co Ltd Roof supports for mine workings
US2990166A (en) * 1957-08-29 1961-06-27 Myles A Walsh Mining method
US3086753A (en) * 1960-10-24 1963-04-23 Walton W Cushman Combined shelter and pneumatic jack

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558910A (https=) *
US2949658A (en) * 1956-10-03 1960-08-23 American Marietta Co Means for forming voids in precast concrete structural members
US2985419A (en) * 1957-04-13 1961-05-23 Mining Engineering Co Ltd Roof supports for mine workings
US2990166A (en) * 1957-08-29 1961-06-27 Myles A Walsh Mining method
US3086753A (en) * 1960-10-24 1963-04-23 Walton W Cushman Combined shelter and pneumatic jack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479637A (en) * 1982-09-01 1984-10-30 National Steel Corporation Apparatus for and method of repairing bottom lining of a converter
US5958312A (en) * 1994-02-03 1999-09-28 Dolomitwerke Gmbh Process for the partial reconstruction of the refractory lining of the wall of steel casting ladles

Also Published As

Publication number Publication date
GB980567A (en) 1965-01-13
LU43777A1 (https=) 1963-07-20

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