EP0086693B1 - Dispositif d'étanchéité pour four-tunnel, et wagons et four-tunnel agencés pour l'obtention de ce dispositif - Google Patents

Dispositif d'étanchéité pour four-tunnel, et wagons et four-tunnel agencés pour l'obtention de ce dispositif Download PDF

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Publication number
EP0086693B1
EP0086693B1 EP83400231A EP83400231A EP0086693B1 EP 0086693 B1 EP0086693 B1 EP 0086693B1 EP 83400231 A EP83400231 A EP 83400231A EP 83400231 A EP83400231 A EP 83400231A EP 0086693 B1 EP0086693 B1 EP 0086693B1
Authority
EP
European Patent Office
Prior art keywords
wagon
wagons
oven
framework
trough
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
Application number
EP83400231A
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German (de)
English (en)
French (fr)
Other versions
EP0086693A1 (fr
Inventor
Michel Hartmann
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.)
ENTREPRISE HARTMANN PERE & FILS
Original Assignee
Entreprise Hartmann Pere & Fils
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 Entreprise Hartmann Pere & Fils filed Critical Entreprise Hartmann Pere & Fils
Publication of EP0086693A1 publication Critical patent/EP0086693A1/fr
Application granted granted Critical
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Expired 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
    • F27D99/0076—Furnace car seals, i.e. seals used in continuous furnaces or kilns for preventing gas or heat exchange between heating chamber and the area comprising driving means

Definitions

  • the present invention relates to a sealing device for tunnel oven, and more particularly to a sealing device for the underside (or bottom) of the baking or drying chamber of the tunnel oven, as well as the wagons and tunnel ovens arranged so as to allow these sealing devices to be obtained.
  • the invention relates to the sealing of the baking chamber of a tunnel oven at its underside, that is to say close to the ground. Indeed, as the wagons are carried by wheels, it is necessary that these can roll on a track without being subjected to a too high temperature. the wagons themselves ensure the closure of most of the underside or bottom of the cooking chamber, but the seal must be ensured on the one hand between the side walls of the cooking chamber and the wagons and d on the other hand between the wagons themselves.
  • these cushions or seals are extended, on the side of each side wall of the tunnel oven, by a part, approximately of the same section, which descends, between the vertical edges opposite the side sheet-metal spades of two consecutive wagons, up to the level of the sand or liquid in the gutters.
  • the sealing device of the lower face (or sole) of the cooking or drying chamber of a tunnel oven that one or more wagon (s) of product support to form forming a ream crosspiece (s), each wagon comprising a frame having side walls, coming in a position substantially parallel to the sealed side walls of the oven, which laterally delimit the cooking or drying chamber, when the wagon is in the tunnel oven, walls transverse, which are integral with the pushing members of the wagons one by the other, and optionally, coupling members, said frame being mounted on wheels allowing the wagon to move on a track passing through the tunnel furnace, said frame carrying a tray which receives refractory linings on which are placed the products to be treated, and partially defines the underside of the cooking or drying chamber, said sealing device comprising sheet-spades, extending in a substantially vertical direction, integral with the walls sides of the frame and protruding under the latter, is characterized in that it also comprises sheets-spades integral with the transverse walls of each wagon, which sheets-spades protrude under
  • a vent hole is provided in one of the side spade sheets of the continuous skirt of each wagon, above the maximum level reached by the liquid, during the passage of the wagon in the oven.
  • the subject of the invention is also a tunnel oven, comprising a sealed vault resting on substantially vertical sealed side walls, and traversed right through by a track on which are moved trainsets of wagons loaded with products to be treated in the oven.
  • a pit, formed in the oven contains a heat transfer liquid, the level of which is such that the lower edge of a continuous skirt, surrounding and protruding under the frame of each wagon passing through the oven, is constantly immersed in this liquid.
  • the tunnel oven according to the invention comprises an access ramp to the pit and an exit ramp from the pit, on which is extended the path of movement of the wagons passing through the oven, the rails of which extend to the bottom of the pit.
  • the invention finally relates to a wagon intended for the support of products to be treated in a tunnel oven, said wagon comprising a frame, the side walls of which carry sheet-spades, extending in a substantially vertical direction and projecting under the frame , and whose transverse walls carry wagons for pushing the wagons together, and possibly, wagons for coupling the wagons to each other, said frame being mounted on wheels, to allow the wagon to move and carrying itself a tray, covered with refractory linings intended to receive the products to be treated and is characterized in that it also comprises sheet metal spades extending in a substantially vertical direction, protruding under the frame and carried by the transverse walls of the latter, the sheet metal spades of the transverse walls being joined to the sheet metal spades of the side walls so as to constitute a continuous skirt surrounding the frame of the wagon, over a sufficient height te so that the lower edge of the skirt is constantly immersed in the heat transfer liquid contained in the pit of a tunnel oven according to the invention.
  • a vent hole is made, above the maximum level that can be reached by the liquid from the pit, in one of the sheet metal spades of the side walls of the wagon.
  • each wagon comprises a frame essentially consisting of two longitudinal members 1, in the form of longitudinal I-sections, supporting a rectangular horizontal plate 2, on which are insulated refractory linings, of any suitable known type. per se, which will not be described but simply identified, as a whole with the load of products to be cooked or dried which they carry, by the reference 3.
  • the longitudinal members 1 are also integral with two pairs of bearings 4 in each of which a wheel is mounted in rotation, to allow the wagon to move on a railway track made up of the rails 5.
  • the two wheels 6, located under the longitudinal member 1 on the left Figure 1 are wheels with two flanges, while the wheels 7 located under the other spar 1 are devoid of flange, since, when the wagon travels through the tunnel oven, its temperature varies, and it expands in all directions, especially transversely. As the wheels 7 do not have a flange, they can move laterally by rolling longitudinally on the corresponding rail 5, so that the latter does not incur undue lateral forces.
  • the latter comprises thrust members, for example thrust plates, for the transmission of the thrust forces from one wagon to another, and possibly coupling members, the assembly of these members secured to the frame, being shown diagrammatically at 8.
  • thrust members for example thrust plates
  • coupling members the assembly of these members secured to the frame
  • a vent hole 12 is drilled in the upper part of a side sheet metal spade 9 to put in communication the chamber defined under the plate 2 by the skirt of the sheets 9 and 10 with the volume defined between the tunnel oven and the wagon.
  • the rails 5 extend over a horizontal lower wall 13 connected by two vertical walls 14 to two raised horizontal walls 15 so as to define a pit 16 of sufficient width to receive the wagons and containing a heat transfer liquid, which may be water or an appropriate mineral oil.
  • the volume of liquid contained in the pit 16 is such that, for any position of the wagon in the tunnel oven, the lower edge 11 of the continuous skirt is constantly immersed in the liquid, whatever the level of the latter, which varies between a minimum level m and a maximum level M (see figure 1) taking into account the pressure differences between the central, warmest part of the tunnel oven and the end parts, near the inlet or from the exit of the tunnel oven.
  • the rails 5 of the track which crosses the tunnel oven at the bottom of the pit 16 with which the latter is equipped, are extended by inclined portions resting on an inclined ramp allowing, at the entrance of the oven, the descent of the wagons into the pit 16, and on an inclined ramp allowing, at the exit of the oven, the exit of the wagons from the pit 16. (These parts of the rails and of the pit having not been shown.)
  • the pit 16 of the tunnel oven with its liquid as well as the rails 5, the wagons received in the oven, and even the other constituent elements of the oven are supported by a very robust supporting frame.
  • I-beams 17 secured between two longitudinal beams at 118 and arranged under the bottom wall 13 of the pit 16, to support the latter, the liquid, the wagons and the rails which it receives.
  • the watertight vault 26 of the tunnel oven also consisting of a supporting frame 27, made of corrugated sheet, and an insulating coating 28, is, for its part, supported by the side walls 23.
  • the invention is not limited to the embodiment which has just been described, but also extends to the embodiments which can be obtained by adapting existing equipment, wagons and tunnel oven, by applying the technical measures.
  • a layer of suitable mineral oil can advantageously be poured onto the surface of the water.
  • the heat transfer liquid can consist of a mixture or of a combination of several liquids of different nature.
  • the pit 16 of the tunnel oven can be voluntarily installed with a longitudinal slope and not horizontal. This slope can correspond to half of the difference in the liquid levels, between the maximum level and the minimum level, in service, so that the bottom of the pit is lowered in the part of the oven where the strongest prevail. pressures, so as to increase the safety margin in the guard of liquid necessary for the preservation of the continuity of the hydraulic seal surrounding each wagon.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Treatment Of Fiber Materials (AREA)
EP83400231A 1982-02-12 1983-02-04 Dispositif d'étanchéité pour four-tunnel, et wagons et four-tunnel agencés pour l'obtention de ce dispositif Expired EP0086693B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8202294A FR2521704A1 (fr) 1982-02-12 1982-02-12 Dispositif d'etancheite pour four-tunnel, et wagons et four-tunnel agences pour l'obtention de ce dispositif
FR8202294 1982-02-12

Publications (2)

Publication Number Publication Date
EP0086693A1 EP0086693A1 (fr) 1983-08-24
EP0086693B1 true EP0086693B1 (fr) 1986-06-25

Family

ID=9270919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400231A Expired EP0086693B1 (fr) 1982-02-12 1983-02-04 Dispositif d'étanchéité pour four-tunnel, et wagons et four-tunnel agencés pour l'obtention de ce dispositif

Country Status (5)

Country Link
US (1) US4504221A (es)
EP (1) EP0086693B1 (es)
DE (1) DE3364225D1 (es)
ES (1) ES8401614A1 (es)
FR (1) FR2521704A1 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557965B1 (fr) * 1984-01-10 1988-07-01 Occidental Ind Sa Four a barres pour cuisson rapide en continu ou en intermittent des produits ceramiques
FR2584805B1 (fr) * 1985-07-12 1989-07-13 Elect Meca Et Const Perfectionnement aux installations de sechage et de cuisson de produits ceramiques
DE3541015C1 (de) * 1985-11-19 1986-09-11 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm Verfahren und Vorrichtung zur Unterwagenkuehlung von Ofenwagen in Tunnelofen
US4778384A (en) * 1985-11-19 1988-10-18 Lingl Jr Hans Multitrain tunnel kiln especially adapted for the underside cooling of kiln cars
DE3604501C1 (de) * 1986-02-13 1993-01-14 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm Verfahren und Vorrichtung zur Unterwagenkuehlung von Ofenwagen in einem Tunnelofen
US4718847A (en) * 1987-03-24 1988-01-12 Ian Manson Kiln system
ATE62738T1 (de) * 1987-08-04 1991-05-15 Lingl Anlagenbau Tunnelofen mit als zug durchlaufenden ofenwagen.
ATE74422T1 (de) * 1987-11-02 1992-04-15 Fuchs & Co Gmbh Vorrichtung zur unterwagenkuehlung von ofenwagen in tunneloefen.
JPH0330799Y2 (es) * 1988-05-30 1991-06-28
DE9103904U1 (de) * 1991-03-30 1992-07-30 Keller GmbH, 4530 Ibbenbüren Stahlmantel-Tunnelofen
AT400871B (de) * 1994-04-11 1996-04-25 Schiedel Kaminwerke Gmbh Vorgefertigter kaminfuss
CA2762103A1 (en) * 2006-09-29 2008-04-03 Fgf Brands Inc. Method of preparing flat bread
WO2010006404A1 (en) 2008-07-16 2010-01-21 Fgf Brands Inc. Intermediate panel ceiling for conveyor oven
US8869684B2 (en) 2008-07-16 2014-10-28 Sam Ajmera Bottom access dollies for conveyor oven
CA2762445A1 (en) * 2011-02-10 2012-08-10 Michael Kloepfer Heater for bulk load container vehicle
FR2976543B1 (fr) * 2011-06-15 2016-09-09 Ceritherm Chassis de wagon destine au transport de produits dans les fours
CN105274570B (zh) * 2015-11-04 2017-05-31 内蒙古风光源节能环保科技有限公司 一种先进的阴极炭块与钢棒预热装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1105729A (en) * 1913-08-13 1914-08-04 Addison G Waterhouse Art of treating vegetable and mineral matter by heat.
US1564935A (en) * 1925-01-15 1925-12-08 Wilson L Burley Traveling support for kilns
US1698835A (en) * 1927-08-18 1929-01-15 Franklin S Weiser Seal for furnaces
GB617486A (en) * 1945-10-03 1949-02-07 Bbc Brown Boveri & Cie Seal for tunnel kiln trucks
FR934099A (fr) * 1945-10-03 1948-05-11 Bbc Brown Boveri & Cie Joint pour chariots de fours à tunnel
DE1302954B (es) * 1962-01-26 1970-12-23
FR1440132A (fr) * 1965-04-16 1966-05-27 Entpr Hartmann Pere & Fils Perfectionnements aux wagonnets de fours ou de séchoirs
DE1261148B (de) * 1965-06-03 1968-02-15 Ofu Ofenbau Union Ges Mit Besc Dichtrinne an einem Industrieofen
DE2249194C3 (de) * 1972-10-05 1975-07-24 Jurid Werke Gmbh, 2056 Glinde Vorrichtung zum Drucksintern plattenförmiger Teile
DE2737549C2 (de) * 1977-08-19 1982-07-15 Vsesojuznyj gosudarstvennyj institut naučno-issledovatel'skich i proektnych rabot ogneupornoj promyšlennosti, Leningrad Dichtungsausbildung an einer mit Wasser gefüllten, durch einen Tunnelofen geführten Dichtrinne

Also Published As

Publication number Publication date
FR2521704A1 (fr) 1983-08-19
ES519721A0 (es) 1983-12-01
ES8401614A1 (es) 1983-12-01
EP0086693A1 (fr) 1983-08-24
DE3364225D1 (en) 1986-07-31
US4504221A (en) 1985-03-12
FR2521704B1 (es) 1984-03-23

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