EP2093531B1 - Structure de support à température constante - Google Patents

Structure de support à température constante Download PDF

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Publication number
EP2093531B1
EP2093531B1 EP09000929A EP09000929A EP2093531B1 EP 2093531 B1 EP2093531 B1 EP 2093531B1 EP 09000929 A EP09000929 A EP 09000929A EP 09000929 A EP09000929 A EP 09000929A EP 2093531 B1 EP2093531 B1 EP 2093531B1
Authority
EP
European Patent Office
Prior art keywords
support structure
structure according
support
spacer
support beam
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.)
Not-in-force
Application number
EP09000929A
Other languages
German (de)
English (en)
Other versions
EP2093531A1 (fr
Inventor
Rolf-Josef Schwartz
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL09000929T priority Critical patent/PL2093531T3/pl
Publication of EP2093531A1 publication Critical patent/EP2093531A1/fr
Application granted granted Critical
Publication of EP2093531B1 publication Critical patent/EP2093531B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F27D5/00—Supports, screens or the like for the charge within the furnace
    • F27D5/0006—Composite supporting structures
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F27D3/123—Furnace cars

Definitions

  • the invention relates to a temperature-resistant support structure for industrial furnace applications.
  • the invention relates to a support structure according to claim 1.
  • German Offenlegungsschrift discloses DE 10 2005 005 607 a kiln furniture comprising at least two kiln furniture parts of different refractory ceramic materials.
  • the two Brennosffenmaschine are positively connected to a kiln furniture and the materials of the two parts are chosen so that they complement each other in terms of their properties in the high and low temperature range.
  • the invention provides a temperature-resistant support structure for use in furnaces, wherein the support structure has a mounting plate on which a spacer is arranged, which carries a support beam made of ceramic.
  • a metal clamping device presses the support beam onto the spacer.
  • the clamping means is designed as a metal band which engages over the support beam.
  • At least one end of the metal strip is fixedly connected to a threaded bolt which projects through an opening of the mounting plate and onto which a nut is screwed, wherein between the nut and the mounting plate is a coil spring which cooperates with the screwed Nut and the mounting plate exerts a tensile force on the metal strip as an abutment.
  • both ends of the metal strip are firmly connected to a respective threaded bolt, so that an elastic tensile force can be exerted on both ends of the metal strip.
  • the metal band is fixed to the one end Attached mounting plate, while only the other end is firmly connected to a threaded bolt.
  • the spacer is made of temperature-resistant metal and is designed for example as a hollow column.
  • a support surface is provided for the support beam, which is preferably adapted to the shape of the support beam. From the bearing surface projects in one embodiment of the invention, a locking pin which projects into an opening in the supporting beam.
  • the support structure comprises insulating material surrounding the spacer. Additionally, there may be additional insulation material inside the hollow spacer.
  • the insulating material may for example be formed so thick that protrudes from the insulating material only an end portion of the spacer, which carries the support beam.
  • two or more spacers are provided with straps between which the support beam extends.
  • the support structure may be arranged on a mobile kiln car or fixedly installed in a furnace.
  • the mounting plate can be formed by a furnace wall.
  • the advantage of the invention is that ceramic materials are combined with metallic materials for a support structure so that their respective advantages can be utilized when used in an oven.
  • the elastic tensile force on a metal strip, which overlaps a support beam thereby enables the compensation of different thermal expansions of the two materials ceramic and metal, so that a stable support structure is created, which meets the requirements for different furnace applications.
  • FIG. 1 an embodiment of a support structure according to the invention is shown schematically.
  • the support structure as a whole is designated by the reference numeral 1.
  • the support structure is preferably installed for transport and storage of annealing material in an oven from the lower cold outer wall and attached to a mounting plate 2 made of metal.
  • the mounting plate can be located inside or outside the furnace housing. Furthermore, the mounting plate can also be formed by the furnace wall itself, so that the support structure is attached directly to the metallic outer wall of the furnace.
  • the support structure according to the invention is thus versatile. For example, it may be permanently installed in a furnace, the two described types of fastening to the furnace wall or to a mounting plate in the cold part of a furnace interior in question. If the support structure is designed to be movable, it can for example be attached to a carriage which can be moved through the furnace. The carriage can be moved, for example, in a gutter, which is located at the bottom of the furnace. Regardless of the use of the support structure in a furnace, this is therefore preferably attached to a mounting plate, wherein the plate can be mounted in turn in many ways on the furnace or on movable components.
  • the mounting plate 2 is also usually separated from the hot part of the furnace by an insulating layer 3 of insulating material. If the support structure is attached to the outer shell of the furnace, the insulation is, for example, the furnace insulation.
  • the layer thickness of the insulating layer 3 is usually between 150 and 450 mm.
  • a metallic spacer 4 is fixed, which has approximately the same height as the insulating layer.
  • the spacer 4 may be welded to the mounting plate 2, for example.
  • the type of attachment is not essential to the invention, however, as long as the connection between the spacer 4 and the mounting plate 2 is temperature-resistant.
  • the spacer 4 is formed for example as a hollow profile, the interior of which is filled with further insulating material 6.
  • insulating material 6 for example, a mineral wool can be used, which has a high melting point.
  • a V-shaped support 7 is arranged, which provides a large support surface for a ceramic support beam 8.
  • the support beam 8 is formed for example as a square hollow section and may consist of known materials such as cordierite, mullite, alumina or SiC, which have been proven for furnace applications.
  • the V-shaped bearing surface of the support 7 provides for a distribution of the contact pressure and thus for reducing the risk of breakage of the ceramic support beam 8 as compared to a support beam directly, the helpless without the V-shaped support 7, on the spacer 4 would rest.
  • the V-shaped support 7 fixes the position of the support beam 8 in a first horizontal direction, which in FIG. 1 is denoted by x.
  • the V-shaped bearing surface 7 has the shape of a rectangular angle profile.
  • the edition 7 can take other forms. It is only essential that the support 7 is adapted to the outer shape of the support beam 8 in order to reduce the contact pressure.
  • a locking pin 9 is preferably arranged, which protrudes from the supporting beam 8 facing support surface of the support 7 and projects into a corresponding opening 11 in the hollow support beam 8.
  • the locking pin 9 fixes the position of the support beam 8 in a second horizontal direction, in FIG. 1 is denoted by y.
  • the annealed material 12 comes to lie on the supporting beam 8.
  • the support beam 8 is additionally elastically held by a biased by tensile metal clamping band 13 by being pressed into the V-shaped support 7 and the locking pin 9.
  • the support beam 8 is also fixed in a vertical direction, which in FIG. 1 is denoted by z.
  • the two ends of the tension band 13 are fixedly connected to threaded bolts 14 which protrude through openings 16 in the mounting plate 2.
  • nuts 18 are attached on the protruding under the mounting plate 2 free ends of the threaded bolt 14 nuts 18 are attached. These nuts serve as adjusting and fastening nuts.
  • each coil springs 17 are mounted, which are compressed when tightening the nuts 18 against the underside of the mounting plate 2.
  • the coil springs exert an elastic tensile force on the metal strip 13 in the tensioned state.
  • the mounting plate 2 serves as an abutment for the coil springs 17th
  • the coil springs 17 serve to compensate for the different thermal expansions of the two materials metal and ceramic, as well as to compensate for the changes in shape of the temperature-creeping metal of the clamping band 13 and the spacer 4. With the help of cold nuts 18 can be restored in maintenance intervals, the necessary bias.
  • FIG. 2 an embodiment of the support structure 1 according to the invention is shown in a viewing direction, in the FIG. 1 is indicated by the arrow 19.
  • the picture in FIG. 2 It can be seen that the V-shaped support is formed so long that the support beam is stable on it.
  • one end of the tension band 13 is fixed to the mounting plate 2, while only the other end of the tension band 13 is fixed to a threaded bolt 14, as shown in the FIGS. 1 and 2 is shown.
  • the tensile force is adjusted only at one end to the clamping band 13.
  • This arrangement is suitable, for example, for round support beams on which the tensioning band 13 slips without appreciable friction.
  • metallic punches can be provided, for example, which press the ceramic support bar 8 from above onto the V-shaped support 7.
  • These stamps have at their lower ends in each case also a V-shaped support, which corresponds to the outer shape of the support beam 8.
  • the punches are also elastically sprung by a spring arrangement, so that the thermal expansion of the punches and the spacer can be compensated and a constant pressure is exerted on the support beam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Springs (AREA)
  • Connection Of Plates (AREA)

Claims (15)

  1. Structure de support résistante à la chaleur pour utilisation dans des fours, la structure de support comportant une plaque de fixation (2) sur laquelle est disposée une pièce d'écartement (4) qui supporte une barre de support (8) en céramique, caractérisée en ce qu'est prévu un moyen de serrage (13, 14, 17, 18) en métal qui presse la barre de support (8) contre la pièce d'écartement (4), le moyen de serrage (13, 14, 17, 18) comprenant une bande métallique (13) qui enserre la barre de support (8).
  2. Structure de support selon la revendication 1, caractérisée en ce qu'au moins une extrémité de la bande métallique (13) est solidaire d'un boulon fileté (14) qui fait saillie par un orifice (16) de la plaque de fixation (2) et sur lequel est vissé un écrou (18), un ressort à boudin (17) se trouvant entre l'écrou (18) et la plaque de fixation (2) de sorte que, étant donné la coopération entre le ressort à boudin (17) et l'écrou vissé (18) ainsi que la plaque de fixation en tant que butée (2), une force de traction est exercée sur la bande métallique (13).
  3. Structure de support selon la revendication 2, caractérisée en ce que les deux extrémités de la bande métallique (13) sont chacune solidaires d'un boulon fileté (14).
  4. Structure de support selon la revendication 2, caractérisée en ce que la bande métallique (13) est solidaire de la plaque de fixation (2) en une extrémité tandis que l'autre extrémité est solidaire d'un boulon fileté (14).
  5. Structure de support selon l'une des revendications 1 à 4, caractérisée en ce que la pièce d'écartement (4) se présente sous la forme d'une colonne creuse.
  6. Structure de support selon l'une des revendications 1 à 5, caractérisée en ce qu'est prévue, sur la pièce d'écartement (4), une surface d'appui (7) pour la barre de support (8).
  7. Structure de support selon la revendication 6, caractérisée en ce que la surface d'appui (7) est adaptée à la forme de la barre de support (8).
  8. Structure de support selon l'une des revendications 5 et 6, caractérisée en ce que fait saillie, hors de la surface d'appui (7), un boulon de blocage (9) qui fait saillie dans un orifice (11) ménagé dans la barre de support (8).
  9. Structure de support selon l'une des revendications 1 à 8, caractérisée en ce que sont prévues deux pièces d'écartement (4) avec des bandes de serrage (13) entre lesquelles s'étend la barre de support (8).
  10. Structure de support selon l'une des revendications 1 à 9, caractérisée en ce que la structure de support comprend un matériau isolant (3) qui entoure la pièce d'écartement (4).
  11. Structure de support selon l'une des revendications 5 à 10, caractérisée en ce qu'un matériau isolant (6) se trouve à l'intérieur de la pièce d'écartement creuse (4).
  12. Structure de support selon l'une des revendications 10 et 11, caractérisée en ce que seule une zone terminale de la pièce d'écartement (4) qui supporte la barre de support (8) fait saillie hors du matériau isolant (3, 6).
  13. Chariot de four mobile avec une structure de support résistante à la température selon les revendications 1 à 12, caractérisé en ce que la structure de support est agencée sur le chariot de four.
  14. Four avec une structure de support résistante à la température selon les revendications 1 à 12, caractérisé en ce que la structure de support est installée à demeure dans le four.
  15. Four selon la revendication 14, caractérisé en ce que la plaque de fixation (2) de la structure de support est formée par une paroi du four.
EP09000929A 2008-02-13 2009-01-23 Structure de support à température constante Not-in-force EP2093531B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09000929T PL2093531T3 (pl) 2008-02-13 2009-01-23 Odporna na temperaturę konstrukcja nośna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008008990A DE102008008990B4 (de) 2008-02-13 2008-02-13 Temperaturbeständige Tragstruktur und deren Verwendung

Publications (2)

Publication Number Publication Date
EP2093531A1 EP2093531A1 (fr) 2009-08-26
EP2093531B1 true EP2093531B1 (fr) 2011-04-13

Family

ID=40602248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000929A Not-in-force EP2093531B1 (fr) 2008-02-13 2009-01-23 Structure de support à température constante

Country Status (5)

Country Link
EP (1) EP2093531B1 (fr)
AT (1) ATE505700T1 (fr)
DE (2) DE102008008990B4 (fr)
ES (1) ES2363191T3 (fr)
PL (1) PL2093531T3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8116662U1 (de) * 1981-06-05 1981-10-01 Peter, Hubertus, Dr., 6650 Homburg Regalaufbau fuer brennwagen der keramischen industrie
DE4020284A1 (de) * 1990-06-26 1992-01-02 Norton Gmbh Ofenwagen mit austauschbaren stuetzelementen
DE19931306C2 (de) * 1999-07-07 2001-08-02 Lipinski Tadeusz Von Rymon Verfahren zur Herstellung von leichten keramischen Bauteilen sowie Bausatz zur Erstellung eines solchen leichten keramischen Bauteils
ATE519086T1 (de) * 2003-06-27 2011-08-15 Ceramic Technology Europ Ltd Ofen, insbesondere für keramikprodukt
DE102005003500A1 (de) * 2005-01-25 2006-07-27 Saint-Gobain Industriekeramik Rödental GmbH Brennguttragevorrichtung mit elastischer Stützenfixierung
DE102005005607A1 (de) * 2005-02-07 2006-08-10 Saint-Gobain Industriekeramik Rödental GmbH Brennhilfsmittel für Brennwagenaufbauten und Feuerfestzustellungen und Verfahren dessen Herstellung

Also Published As

Publication number Publication date
DE102008008990A1 (de) 2009-09-10
ES2363191T3 (es) 2011-07-26
DE502009000510D1 (de) 2011-05-26
ATE505700T1 (de) 2011-04-15
DE102008008990B4 (de) 2009-11-26
PL2093531T3 (pl) 2011-10-31
EP2093531A1 (fr) 2009-08-26

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