EP0518279A1 - Four pour le traitement thermique de produits en vrac - Google Patents

Four pour le traitement thermique de produits en vrac Download PDF

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Publication number
EP0518279A1
EP0518279A1 EP92109728A EP92109728A EP0518279A1 EP 0518279 A1 EP0518279 A1 EP 0518279A1 EP 92109728 A EP92109728 A EP 92109728A EP 92109728 A EP92109728 A EP 92109728A EP 0518279 A1 EP0518279 A1 EP 0518279A1
Authority
EP
European Patent Office
Prior art keywords
hose
furnace
oven according
entire length
adjacent
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.)
Granted
Application number
EP92109728A
Other languages
German (de)
English (en)
Other versions
EP0518279B1 (fr
Inventor
Kurt Ellringmann
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.)
Maerz Ofenbau AG
Maerz Ofenbau GmbH
Original Assignee
Maerz Ofenbau AG
Maerz Ofenbau 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 Maerz Ofenbau AG, Maerz Ofenbau GmbH filed Critical Maerz Ofenbau AG
Publication of EP0518279A1 publication Critical patent/EP0518279A1/fr
Application granted granted Critical
Publication of EP0518279B1 publication Critical patent/EP0518279B1/fr
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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace walking beam furnace
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • 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
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0036—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising inflatable or extendable parts

Definitions

  • the invention relates to an oven for the heat treatment of lumpy goods, for example sheet metal, with a transport device for passing the goods to be heated through the oven.
  • This transport device has two groups of longitudinal beams carrying the goods, which are alternately spaced apart and from which at least one beam group in a higher position than the other beam group can advance a section of the transport path through the furnace and then in a lower position than this other Bar group can be moved back to its starting position.
  • a supporting structure which can be moved with it and which has at least one vertical side surface which extends continuously over the entire length of the supporting structure and which faces the supporting structure of the adjacent longitudinal beam.
  • the water channels in the known stoves are composed of individual longitudinal sections for structural reasons, which are provided on their abutting front ends with outwardly projecting flanges, which are arranged with sealing strips between them are bolted in order to achieve a firm and liquid-tight connection of the longitudinal shots put together.
  • the piece goods to be treated in the furnace must be supported on at least two longitudinal beams per bar group and that sheet-like piece goods should not or only slightly protrude laterally on its edge for reasons of support, the smallest possible center-to-center distance between the adjacent walking beam of the two groups of bars is desired.
  • the invention is therefore based on the object to reduce the center distance of the longitudinal beams in a furnace of the type mentioned, without the effectiveness of endanger the gas-tight seal of the floor.
  • This is achieved according to the invention in that, in this furnace, between two adjacent supporting structures of the longitudinal beams, a hose is also provided, which extends over the entire length of the supporting structures and which closely clings to the vertical side surface of at least one of the adjacent supporting structures.
  • the tube can be expanded in cross-section by filling with a pneumatic or hydraulic pressure medium and can thus be pressed against the side surface in such a way that there is a good seal against the air flowing into the interior of the furnace over the entire length of the furnace.
  • the hose is mounted on one of the two adjacent support structures, namely on brackets arranged on this support structure, with one side against the vertical side surface of this support structure and the other side against the vertical side surface of the adjacent one Carrying structure presses.
  • the hoses located between two supporting structures are not each mounted on one of these two supporting structures, but are arranged individually and stationary between the two supporting structures.
  • the relative movement between the hose and the moving vertical side surface against which the hose is pressed during operation of the transport device leads to the occurrence of a longitudinal tensile stress in the hose due to friction.
  • the floor parts can, according to the invention, be formed in each case by a plurality of layers of heat-insulating fiber mats which essentially lie against one another with their side edges.
  • the step-by-step furnace shown in the drawing has two groups of longitudinal beams 1, 2 lying next to one another in the cross section of the furnace, the beams of these two groups being alternately spaced apart.
  • These longitudinal beams 1, 2 are each supported by supports 4 of supporting structures, the main part of which consists of hollow-shaped supporting beams 6, which are connected via supports 7 to crossbars 8a and 8b which can be moved back and forth and up and down in the longitudinal direction of the furnace via a drive mechanism.
  • This support part 5 consists of a base plate fastened to the upper side of the supporting beam, on which the fiber mats are mounted, and a side wall which does not protrude up to the uppermost fiber mat on a side edge of this base plate.
  • the adjacent floor parts are in direct contact with one another with their fiber mats and the upstanding side wall, as a result of which a good insulating effect and an additional largely gas-tight closure of the stove top of the oven is ensured.
  • Every second longitudinal beam 2 has brackets 9 on its supporting structure, which protrude on both sides from the supporting beam 6 and carry hoses 11 lying on both sides of this beam, which extend over the entire length of the beam.
  • these hoses lie on the vertical side surfaces of these support beams, while on their other side surface there is a rocker arm 12, which also extends over the entire length of the beam and can be pivoted about axes 13 extending in the longitudinal direction of the hose.
  • rockers On the side facing away from the hose, these rockers carry slide strips 14, which are mounted in holders 15 and can be pressed with their smooth side surface onto the vertical sides of the adjacent supporting beams 6.
  • the slide strips 14 are expediently made of an abrasion-resistant material with a smooth surface, for example hard plastic.
  • each longitudinal beam prefferably has brackets with hoses etc. protruding on one side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP92109728A 1991-06-14 1992-06-10 Four pour le traitement thermique de produits en vrac Expired - Lifetime EP0518279B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119709 1991-06-14
DE4119709A DE4119709A1 (de) 1991-06-14 1991-06-14 Ofen fuer die waermebehandlung von stueckigem gut

Publications (2)

Publication Number Publication Date
EP0518279A1 true EP0518279A1 (fr) 1992-12-16
EP0518279B1 EP0518279B1 (fr) 1995-08-30

Family

ID=6433984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109728A Expired - Lifetime EP0518279B1 (fr) 1991-06-14 1992-06-10 Four pour le traitement thermique de produits en vrac

Country Status (6)

Country Link
US (1) US5248254A (fr)
EP (1) EP0518279B1 (fr)
AT (1) ATE127211T1 (fr)
DE (2) DE4119709A1 (fr)
DK (1) DK0518279T3 (fr)
ES (1) ES2080377T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008059A1 (fr) * 1997-08-06 1999-02-18 Kaiser Aluminum & Chemical Corporation Dispositif d'obturation pour conduit de flamme de four de cuisson d'anode en carbone

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2927410B1 (fr) * 2008-02-13 2010-04-09 Solios Carbone Obturateur a joint d'etancheite peripherique gonflable et systeme d'obturation le comportant pour lucarne de four a chambres
US20140186484A1 (en) * 2012-12-27 2014-07-03 Berndorf Band Gmbh Sealing system for a moved metal strip as well as a strip casting installation with such a sealing system
EP3935334B1 (fr) * 2019-03-05 2024-03-20 SMS group S.p.A. Four doté d'un système de manipulation de charge à poutres mobiles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE683012C (de) * 1934-09-30 1939-10-27 Benno Schilde Maschb Akt Ges Lagerung des festen Herdrueckens fuer Durchlaufoefen mit Schwingbalkenfoerderung
FR1344841A (fr) * 1963-01-23 1963-11-29 Demag Ag Dispositif de joint étanche pour calotte de tête de fours métallurgiques ou analogues
US3948494A (en) * 1974-10-21 1976-04-06 Sola Basic Industries, Inc. Walking beam furnace
EP0043306A1 (fr) * 1980-06-24 1982-01-06 ENTREPRISE HARTMANN PERE & FILS Dispositif de fermeture étanche pour four-tunnel à circuit hydraulique et accouplement pour circuit hydraulique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926661A1 (de) * 1979-07-02 1981-01-15 Italimpianti Deutschland Indus Hubbalkenofen
FR2542433B1 (fr) * 1983-03-11 1988-01-29 Stein Heurtey Fours a longerons refractaires
JPS6237313A (ja) * 1985-08-09 1987-02-18 Chugai Ro Kogyo Kaisha Ltd ウオ−キングビ−ム型鋼片加熱炉

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE683012C (de) * 1934-09-30 1939-10-27 Benno Schilde Maschb Akt Ges Lagerung des festen Herdrueckens fuer Durchlaufoefen mit Schwingbalkenfoerderung
FR1344841A (fr) * 1963-01-23 1963-11-29 Demag Ag Dispositif de joint étanche pour calotte de tête de fours métallurgiques ou analogues
US3948494A (en) * 1974-10-21 1976-04-06 Sola Basic Industries, Inc. Walking beam furnace
EP0043306A1 (fr) * 1980-06-24 1982-01-06 ENTREPRISE HARTMANN PERE & FILS Dispositif de fermeture étanche pour four-tunnel à circuit hydraulique et accouplement pour circuit hydraulique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 139 (C-420)(2586) 7. Mai 1987 & JP-A-61 276 915 ( KAWASAKI STEEL CORP ) 6. Dezember 1986 *
SOVIET INVENTIONS ILLUSTRATED Section Ch, Week 9151, 12. Februar 1988 Derwent Publications Ltd., London, GB; Class C, AN 91-375283/51 & SU-A-1 640 504 (KHARK BR) 7. April 1991 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008059A1 (fr) * 1997-08-06 1999-02-18 Kaiser Aluminum & Chemical Corporation Dispositif d'obturation pour conduit de flamme de four de cuisson d'anode en carbone

Also Published As

Publication number Publication date
EP0518279B1 (fr) 1995-08-30
ES2080377T3 (es) 1996-02-01
DE4119709A1 (de) 1992-12-17
ATE127211T1 (de) 1995-09-15
DE59203434D1 (de) 1995-10-05
DK0518279T3 (da) 1995-11-06
US5248254A (en) 1993-09-28

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