US3458641A - Refractory lining for arc furnaces,adapted to facilitate dismembering upon completion of a campaign - Google Patents

Refractory lining for arc furnaces,adapted to facilitate dismembering upon completion of a campaign Download PDF

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Publication number
US3458641A
US3458641A US693623A US3458641DA US3458641A US 3458641 A US3458641 A US 3458641A US 693623 A US693623 A US 693623A US 3458641D A US3458641D A US 3458641DA US 3458641 A US3458641 A US 3458641A
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United States
Prior art keywords
blocks
wedge
campaign
arc furnaces
lining
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Expired - Lifetime
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US693623A
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English (en)
Inventor
Arturo Perucchetti
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.)
Dolomite Franchi SpA
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Dolomite Franchi SpA
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    • 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
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/12—Working chambers or casings; Supports therefor

Definitions

  • PERU'CCHETTI 41 REFRACTORY LINING FOR ARC FURNACES, ADAPTED TO FACILITATE DISMEMBERING UPON COMPLETION OF A CAMPAIGN 119d De'c 26,;967 s Sheets-Sheet 1 y 9. 1969 A.
  • PERUCCHETTI 3,458,641 REFRACTORY LINING FOR ARC FURNACES, ADAPTED TO FACILITATE DISMEMBERING UPON COMPLETION OF A CAMPAIGN Filad Dec. 26, 1967 1 3 Sheets-Sheet 2 y 1969 A.
  • PERUCCHETTI 3,6 REFRACTORY LINING FOR ARC FURNACES, ADAPTED TO FACILITATE DISMEMBERING UPON COMPLETION OF A CAMPAIGN Filad Dec. 26, 1967 1 3 Sheets-Sheet 2 y 1969 A.
  • PERUCCHETTI 3,6 REFRACTORY LINING FOR ARC FURNACES,
  • Every individual dolomite block indeed, constitutes a considerable fraction of the wall of the furnace to be lined, from A, /6, A; and is positioned in the furnace within a short time, by virtue of the use of hoisting mechanisms, and resorting to the specially provided hooks which jut from the top of the block.
  • the worn-out blocks as a campaign has come to an end, are withdrawn from the furnace, still with the aid of hoisting mechanisms, by virtue of other specially provided hooks embedded in the portion of the residual blocks (FIG. 3, item 12).
  • An object of the present invention is to provide a refractory lining for electric arc furnaces, which is adapted to facilitate the operation of withdrawing the worn out blocks and thus the operation of replacing the worn out blocks as a whole, while doing away with the above enumerated shortcomings.
  • the lining subject of this invention is, in fact, characterized in that one of the blocks which forms the lining is wedge shaped and has its smaller side down, so that it is easier to remove this block than the other ones, by lifting it.
  • the wedgeshaped block is positioned between its two adjoining blocks, the latter having been specially arranged with sidewalls having very much the same slope as those of the Wedge-shaped block.
  • the wedge is the central portion of a block having a size and a shape equal to those of the other blocks, the wedge being connected to the two lateral gores by means of steel hoops.
  • FIGURE 1 is a perspective, diagrammatical view of a furnace having a lining according to the invention.
  • FIGURE 2 is a perspective, diagrammatical view of a furnace having a lining made according to an alternative embodiment of this invention.
  • FIGURE 3 shows the lining when demolition is under way.
  • the refractory lining on the interior of the outer shell 1, and above the tamped bottom 2 consists of a plurality of dolomite blocks 3 having a virtually sectoral configuration, between which is inserted a wedge-shaped block 4, sandwiched between the two adjoining blocks 3'-3" having sidewalls 5-5 with the same slope as that of the wedge 4.
  • the wedge block 4 rests on the bottom with its smaller side 6.
  • the lining is still made up of blocks 3 having a substantially sectoral-cylindrical outline, but the wedge 7 forms the central portion of a block 8 which has the same shape and size as the remaining blocks 3: in this case, the wedge 7 is connected to the two lateral gores by horizontal steel hoops, 9.
  • the block 8, so composed can be prefabricated and installed more easily than the embodiment shown in FIG. 1.
  • the lining is to be dismantled (FIG. 3)
  • the wedge 7 is withdrawn first by taking it by the hooks 10 and 11, specially provided for dismantling.
  • a refractory lining for electric arc furnaces comprising large size dolomite blocks, one of said blocks having the shape of a wedge positioned with its smaller side down and thus it can be withdrawn in an easier way than the other blocks by vertical hoisting.
  • a lining according to claim 1 characterized in that said wedge-shaped block is positioned between the two adjoining blocks which have been prepared with sidewalls having the same slope as that of the sides of the wedge.
  • a lining according to claim 1 characterized in that said wedge forms the central portion of a block having the same size and shape as the other blocks, said wedge being connected to the two lateral gores of the block by means of horizontal hoops or other means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
US693623A 1967-01-02 1967-12-26 Refractory lining for arc furnaces,adapted to facilitate dismembering upon completion of a campaign Expired - Lifetime US3458641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1110967 1967-01-02

Publications (1)

Publication Number Publication Date
US3458641A true US3458641A (en) 1969-07-29

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ID=11134760

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Application Number Title Priority Date Filing Date
US693623A Expired - Lifetime US3458641A (en) 1967-01-02 1967-12-26 Refractory lining for arc furnaces,adapted to facilitate dismembering upon completion of a campaign

Country Status (6)

Country Link
US (1) US3458641A (en))
AT (1) AT275174B (en))
BE (1) BE708690A (en))
DE (1) DE1583247B1 (en))
FR (1) FR1557843A (en))
SE (1) SE320091B (en))

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646722A (en) * 1969-09-02 1972-03-07 Gen Refractories Co Preassembly of refractory brick and lining furnaces therewith
US4012029A (en) * 1973-07-30 1977-03-15 Foseco Trading A.G. Tundishes
US4088719A (en) * 1977-03-21 1978-05-09 Heath Jesse M Device and method for forming a structure, and a structure formed thereby
USD262311S (en) 1979-08-16 1981-12-15 Foseco Trading Ag Tundish lining
US4453253A (en) * 1981-06-10 1984-06-05 Union Carbide Corporation Electric arc furnace component
US4454959A (en) * 1981-03-04 1984-06-19 Krupp-Koppers Gmbh Transport container for transporting hot particulate materials
US4584812A (en) * 1983-11-23 1986-04-29 Miskolczi Jr John Refractory brick ring tightening device
US5078595A (en) * 1989-07-14 1992-01-07 Roenigk Howard L Carbon flue wall and method of making
EP0476275A1 (de) * 1990-08-25 1992-03-25 Radex-Heraklith Industriebeteiligungs Aktiengesellschaft Spülsteinanordnung
US6539602B1 (en) * 1999-07-05 2003-04-01 Kawasaki Steel Corporation Method of repairing coke oven

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1133899B (it) * 1980-10-15 1986-07-24 Giovanni Crespi Rivestimento refrattario per siviere e procedimento per la sua fabbricazione
DE3535692A1 (de) * 1985-10-05 1987-04-09 Gutehoffnungshuette Man Kontaktelektroden-anordnung fuer gleichstrom-lichtbogen- oder widerstands-schmelzoefen
DE29613515U1 (de) * 1996-08-03 1997-12-04 GfT Gesellschaft für Feuerfest-Technik mbH, 47441 Moers Anordnung zur Verminderung der Gaserosion und -korrosion von Feuerfest-Systemen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246442A (en) * 1962-10-01 1966-04-19 American Cement Corp Rotary kiln lining
US3258510A (en) * 1962-10-18 1966-06-28 Cullinan Refractories Ltd Method of lining furnaces and like vessels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246442A (en) * 1962-10-01 1966-04-19 American Cement Corp Rotary kiln lining
US3258510A (en) * 1962-10-18 1966-06-28 Cullinan Refractories Ltd Method of lining furnaces and like vessels

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646722A (en) * 1969-09-02 1972-03-07 Gen Refractories Co Preassembly of refractory brick and lining furnaces therewith
US4012029A (en) * 1973-07-30 1977-03-15 Foseco Trading A.G. Tundishes
US4088719A (en) * 1977-03-21 1978-05-09 Heath Jesse M Device and method for forming a structure, and a structure formed thereby
USD262311S (en) 1979-08-16 1981-12-15 Foseco Trading Ag Tundish lining
US4454959A (en) * 1981-03-04 1984-06-19 Krupp-Koppers Gmbh Transport container for transporting hot particulate materials
US4453253A (en) * 1981-06-10 1984-06-05 Union Carbide Corporation Electric arc furnace component
US4584812A (en) * 1983-11-23 1986-04-29 Miskolczi Jr John Refractory brick ring tightening device
US5078595A (en) * 1989-07-14 1992-01-07 Roenigk Howard L Carbon flue wall and method of making
EP0476275A1 (de) * 1990-08-25 1992-03-25 Radex-Heraklith Industriebeteiligungs Aktiengesellschaft Spülsteinanordnung
US6539602B1 (en) * 1999-07-05 2003-04-01 Kawasaki Steel Corporation Method of repairing coke oven

Also Published As

Publication number Publication date
FR1557843A (en)) 1969-02-21
BE708690A (en)) 1968-05-02
SE320091B (en)) 1970-02-02
AT275174B (de) 1969-10-10
DE1583247B1 (de) 1970-08-06

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