EP0466530B1 - Ofenwand und Verfahren zu ihrer Herstellung - Google Patents

Ofenwand und Verfahren zu ihrer Herstellung Download PDF

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Publication number
EP0466530B1
EP0466530B1 EP91401580A EP91401580A EP0466530B1 EP 0466530 B1 EP0466530 B1 EP 0466530B1 EP 91401580 A EP91401580 A EP 91401580A EP 91401580 A EP91401580 A EP 91401580A EP 0466530 B1 EP0466530 B1 EP 0466530B1
Authority
EP
European Patent Office
Prior art keywords
slab
layer
wall
compressed
framework
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
EP91401580A
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English (en)
French (fr)
Other versions
EP0466530A1 (de
Inventor
Jean-Pierre Boulger
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.)
CERIC SA
Original Assignee
Ceric SA
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Filing date
Publication date
Application filed by Ceric SA filed Critical Ceric SA
Publication of EP0466530A1 publication Critical patent/EP0466530A1/de
Application granted granted Critical
Publication of EP0466530B1 publication Critical patent/EP0466530B1/de
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
    • F27D1/14—Supports for linings
    • F27D1/144—Supports for ceramic fibre materials
    • 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
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F27D1/0009—Comprising ceramic fibre elements

Definitions

  • the present invention relates to oven walls, more particularly to a process for producing a wall of a roof and a right foot of an industrial oven.
  • the stack of insulating materials is held against the metal wall by anchors which are firstly welded to the internal ribs of the sheet and secondly anchored in the refractory lining, as shown in FIG. 1.
  • the materials are the same dimensions as the plate on which they are previously stacked.
  • US-A 4,030,261 is also known, which describes an oven, the wall of which consists of an external metal shield, a series of layers of a solid insulating material and layers of a compressible fibrous material.
  • Metal rods are welded to the wall and pass through the layers of insulation.
  • kinds of buttons are provided for engaging the end of the rods and compressing the fiber layers; the wall thus has a padded appearance, the compression of the fibers being maximum at the level of each button or shoe.
  • the object of the present invention is to solve the drawbacks described above and to produce an oven wall, the insulation layers of which are uniformly compressed over the entire surface.
  • the subject of the invention is an industrial oven wall of the type comprising, successively from the outside to the inside, a shield or an external metal framework, at least one layer of elastic insulating material maintained in compression in the direction perpendicular to the shield by a plurality of shoes mounted on anchor rods characterized in that it comprises a plurality of tiles compressing the elastic insulating material, each being carried by at least two shoes.
  • the slab is presented obliquely and rests on the shoulders of the hooves closest to the previous row.
  • the layer of compressed fibers is introduced on the inclined surface; remove the straps and straighten the slab.
  • the wall according to FIG. 1 represents a known vault: it comprises an outer metal sheet 100, this sheet having a succession of grooves 101 and ribs 102.
  • the anchors 105 are arranged, on the inner side, at the top of the ribs, and are there welded.
  • the refractory materials are arranged in successive layers and held by the anchors. The compaction of the materials and the progressive collapse of the layers allows the passage of gases and their accumulation at the bottom of the grooves.
  • the water in vapor condenses and runs on the edge of the ribs. This condensate is very corrosive and attacks the welds and the casing.
  • the number of layers of fibers varies in particular according to their technical characteristics (heat transfer coefficient, %) and the maximum oven temperature.
  • a first layer 12 of mineral wool is packed on the metal wall so as to fill the grooves and form a substantially flat surface.
  • the number of layers of panels is provided so as to leave a substantial space 14 between the last layer and the lower pavement, into which the compressed stretch layer is introduced.
  • this space 14 and the initial compression of the layer of fibers 11 are chosen so that the layer 11 can be easily introduced and, after expansion, it is still compressed. Thus all of the layers between the paving and the metal wall are permanently in compression.
  • the space 14 is approximately 220 millimeters and the layer 11 of compressed fibers consists of superimposed strips; before compression the thickness is of the order of 275 millimeters.
  • This layer is compressed, the thickness being reduced to 200 millimeters, and thus maintained by straps. It is introduced, placed on the paving and the straps are removed. The layer relaxes and fills the space of 220 millimeters.
  • the compressed layer can be produced in various ways without departing from the invention; the sheet can in particular be compressed without being cut into superimposed strips, but wound or folded over itself several times, etc.
  • the installation of the paving and the compressed layers is carried out, in the embodiment, as follows: first of all the rods 6 (without shoe 9) and the first inextensible layers 12, 13 are flat . The tiles are then installed one by one with the layers compressed, and held by the shoes.
  • the slabs have on at least two opposite edges connecting means allowing each of them to rest and / or hold on to its neighbor.
  • These connecting means are for example made by concordance of shape, of the tenon-mortise type, recess-projection in general, tile profile, free hinge, etc.
  • the wall is in compression throughout its thickness, which avoids the formation of pockets and passages allowing gas leaks.
  • This oven wall can be made both for the vaults, which are substantially horizontal, and for the vertical walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Building Environments (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Finishing Walls (AREA)
  • Laminated Bodies (AREA)

Claims (5)

  1. Ofenmantel für Industrieöfen, mit (nacheinander von außen nach innen) einer äußeren metallischen Abschirmung oder einem äußeren metallischen Tragwerk (1), mit mindestens einer Schicht aus elastischem Isoliermaterial (11), das in einer Richtung senkrecht zur Abschirmung durch eine Vielzahl von Klötzen (9), die auf Verankerungsstangen (6) befestigt sind, unter Kompression gehalten wird, dadurch gekennzeichnet, daß eine Vielzahl von Platten (10) vorgesehen ist, die das elastische Isoliermaterial (11) zusammendrücken und deren jede von wenigstens zwei Klötzen (9) gehalten wird.
  2. Ofenmantel nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens eine nicht ausdehnbare Schicht aus zusammengedrückter Mineralwolle zwischen dem metallischen Tragwerk (1) und einer Schicht (11) aus elastischem Isoliermaterial vorgesehen ist.
  3. Ofenmantel nach Anspruch 1 oder 2, bei dem das Tragwerk oder die Abschirmung mittels eines Formblechs (1) verwirklicht ist, das eine Folge von Vertiefungen (3) und Rippen (2) aufweist, dadurch gekennzeichnet, daß die Verankerungselemente (5, 6) am Boden der Vertiefungen (3) befestigt sind.
  4. Ofenmantel nach Anspruch 3, dadurch gekennzeichnet, daß die Innenfläche des Blechs (1) mit gepreßter Mineralwolle (12) so bedeckt ist, daß die Vertiefungen (3) ausgefüllt werden und eine im wesentlichen ebene und regelmäßige Oberfläche ausgebildet wird.
  5. Verfahren zur Erstellung eines Ofenmantels für Industrieöfen nach einem der vorausgehenden Ansprüche, bei dem zuerst ein Tragwerk oder eine Abschirmung aus Blech erstellt wird, dessen bzw. deren zum Ofeninneren hin gerichtete Oberfläche mit einem korrosionsverhütenden Werkstoff beschichtet ist, dadurch gekennzeichnet, daß
    1.) Verankerungsstangen (6) auf dem Mantel angebracht werden;
    2.) für jede Platte (10) nacheinander folgende Schritte vorgenommen werden:
    * eine Platte (10) wird zwischen zwei benachbarten Stangen (6′, 6˝) angebracht und von einer unteren Stütze (16) gehalten;
    * auf der Platte (10) wird mindestens eine Schicht (11) aus keramischen Fasern angeordnet, die vorher zusammengedrückt wurden und in diesem Zustand mittels Gurten (17) oder irgendeinem anderen Mittel gehalten werden;
    * die Gurte werden so entfernt, daß die Schicht aus keramischen Fasern sich entspannt und das ganze Volumen ausfüllt, das die Platte von der Wand trennt, wobei die Schicht weiterhin zusammengedrückt bleibt;
    * die Ausrichtung der Platte wird eingestellt und es werden Klötze (9˝) zum Haltern der Platten an den Enden der Stäbe angebracht.
EP91401580A 1990-07-11 1991-06-14 Ofenwand und Verfahren zu ihrer Herstellung Expired - Lifetime EP0466530B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9008808A FR2664681B1 (fr) 1990-07-11 1990-07-11 Paroi de four et son procede de realisation.
FR9008808 1990-07-11

Publications (2)

Publication Number Publication Date
EP0466530A1 EP0466530A1 (de) 1992-01-15
EP0466530B1 true EP0466530B1 (de) 1995-12-06

Family

ID=9398584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401580A Expired - Lifetime EP0466530B1 (de) 1990-07-11 1991-06-14 Ofenwand und Verfahren zu ihrer Herstellung

Country Status (4)

Country Link
EP (1) EP0466530B1 (de)
AT (1) ATE131277T1 (de)
DE (1) DE69115145T2 (de)
FR (1) FR2664681B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005116558A1 (en) * 2004-05-26 2005-12-08 Hatch Ltd. System for applying vertical compressive force to furnace walls

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2705641A1 (en) 2007-12-22 2009-07-02 Juenger+Graeter Gmbh Feuerfestbau Wall lining of industrial ovens
CA2778436C (en) 2009-12-10 2014-07-22 Novelis Inc. Compressive rod assembly for molten metal containment structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065867A5 (en) * 1969-10-21 1971-08-06 Sanac Spa Refractory or insulating panels for indus-trial furnaces
FR2116721A5 (en) * 1970-12-04 1972-07-21 Hartmann Pere & Fils Combine wall and resistance heating element - self supporting structu for furnaces
US4030261A (en) * 1975-04-08 1977-06-21 The Babcock & Wilcox Company Ceramic cap for insulation anchor
FR2461911A1 (fr) * 1979-07-19 1981-02-06 Heurtey Metallurgie Dispositif d'accrochage de pieces metalliques dans une enceinte a haute temperature

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005116558A1 (en) * 2004-05-26 2005-12-08 Hatch Ltd. System for applying vertical compressive force to furnace walls
US7134397B2 (en) 2004-05-26 2006-11-14 Hatch, Ltd. System for applying vertical compressive force to furnace walls
CN1957219B (zh) * 2004-05-26 2010-05-26 哈奇有限公司 用于将垂直压紧力施加至炉壁的系统

Also Published As

Publication number Publication date
DE69115145T2 (de) 1996-10-10
EP0466530A1 (de) 1992-01-15
ATE131277T1 (de) 1995-12-15
FR2664681B1 (fr) 1997-01-03
DE69115145D1 (de) 1996-01-18
FR2664681A1 (fr) 1992-01-17

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