EP0740709B1 - Dispositif de refroidissement du couvercle de protection de la charge dans des fours a recuire - Google Patents

Dispositif de refroidissement du couvercle de protection de la charge dans des fours a recuire Download PDF

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Publication number
EP0740709B1
EP0740709B1 EP95904960A EP95904960A EP0740709B1 EP 0740709 B1 EP0740709 B1 EP 0740709B1 EP 95904960 A EP95904960 A EP 95904960A EP 95904960 A EP95904960 A EP 95904960A EP 0740709 B1 EP0740709 B1 EP 0740709B1
Authority
EP
European Patent Office
Prior art keywords
protective cover
cooling
cooling jacket
air
fans
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
EP95904960A
Other languages
German (de)
English (en)
Other versions
EP0740709A1 (fr
Inventor
Peter Ebner
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.)
Ebner Industrieofenbau GmbH
Original Assignee
Ebner Industrieofenbau 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3481457&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0740709(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ebner Industrieofenbau GmbH filed Critical Ebner Industrieofenbau GmbH
Publication of EP0740709A1 publication Critical patent/EP0740709A1/fr
Application granted granted Critical
Publication of EP0740709B1 publication Critical patent/EP0740709B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
    • 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
    • F27B11/00—Bell-type furnaces

Definitions

  • the invention relates to a device for cooling the batch protection cover of annealing furnaces with a die Protective cover enclosing, preferably hood-shaped Cooling jacket and with fans for sucking in air through the space between the protective cover and the cooling jacket, wherein the cooling jacket has a plurality of air passage openings for impact beams directed against the protective cover and the protective cover in the impact area the impact rays are according to AT-A 396525, whereby in the protective cover under a batch pad Radially conveying fan for protective gas and the fans for the cooling air in the upper area of the cooling jacket are provided.
  • the air passage openings are for the air directed as impact jets against the cooling jacket essentially over the entire cooling jacket or over the distributed the entire height of the cooling jacket and it even shows that Corresponding through openings on the top wall of the jacket.
  • the one arranged under the batch pad Fan-supported protective gas is namely initially with high momentum or high speed against the Cooling jacket thrown, so that a high in this area Heat transfer takes place.
  • Inert gas then becomes the annular gap between the outside of the batch and the inner wall of the protective cover evenly filled with protective gas, with proportions of the volume flow of the protective gas also in the spaces between the batches get and the suction mouth of the fan again are fed so that in the upper area of the protective cover the heat transfer decreases significantly.
  • the object of the invention is therefore the device to improve after the main patent so that for Manufacturing and operating a significant reduction of the technical effort.
  • the invention solves the problem that the Air openings of the cooling jacket for the impact jets above the batch level only in the lower one Height thirds of the cooling jacket are arranged.
  • the cooling jacket 4 only in the lower third of the height above the batch level 8 a plurality of air passage openings 5 and has at least one fan 6 for sucking air through the space between the protective cover 2 and the cooling jacket 4. This means that with every air passage opening 5 resulting impact beams hit the protective cover 2, wherein at the air passage openings 5 of the Cooling jacket 4 each have a tubular extension 7 is. It is essential that the air passage openings 5 above the batch level 8 exclusively are in the lower third of the height of the cooling jacket 4, which in the rest is left without any air passage opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)

Claims (1)

  1. Dispositif de refroidissement du couvercle de protection de la charge (2), dans des fours à recuire, avec une enveloppe de refroidissement (4), de préférence en forme de capot ou hotte, enclosant le couvercle de protection (2), et avec des ventilateurs (6) destinés à produire un écoulement d'aspiration d'air à travers l'espace intermédiaire existant entre le couvercle de protection (2) et l'enveloppe de refroidissement (4), l'enveloppe de refroidissement (4) présentant une pluralité d'ouvertures de passage d'air (5) destinées à des jets d'impact orientés contre le couvercle de protection (2), et le couvercle de protection étant respectivement situé dans la zone de rencontre des jets d'impact, dans le couvercle de protection (2) étant prévu, sous un support de charge (8), un ventilateur (3) assurant un écoulement radial de gaz de protection, et les ventilateurs (6), destinés à l'air de refroidissement, étant prévus dans la zone supérieure de l'enveloppe de refroidissement (4), caractérisé en ce que les ouvertures de passage d'air (5) de l'enveloppe de refroidissement (4), destinées aux jets d'impact, sont disposées au-dessus du support de charge (8), exclusivement dans le tiers inférieur de la hauteur de l'enveloppe de refroidissement (4).
EP95904960A 1994-01-20 1995-01-13 Dispositif de refroidissement du couvercle de protection de la charge dans des fours a recuire Expired - Lifetime EP0740709B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT98/94 1994-01-20
AT0009894A AT399775B (de) 1994-01-20 1994-01-20 Vorrichtung zum abkühlen der chargenschutzabdeckung von glühöfen
PCT/AT1995/000005 WO1995020058A1 (fr) 1994-01-20 1995-01-13 Dispositif de refroidissement du couvercle de protection de la charge dans des fours a recuire

Publications (2)

Publication Number Publication Date
EP0740709A1 EP0740709A1 (fr) 1996-11-06
EP0740709B1 true EP0740709B1 (fr) 1998-06-03

Family

ID=3481457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95904960A Expired - Lifetime EP0740709B1 (fr) 1994-01-20 1995-01-13 Dispositif de refroidissement du couvercle de protection de la charge dans des fours a recuire

Country Status (5)

Country Link
EP (1) EP0740709B1 (fr)
AT (2) AT399775B (fr)
DE (1) DE59502409D1 (fr)
ES (1) ES2118553T3 (fr)
WO (1) WO1995020058A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE217651T1 (de) * 1997-01-30 2002-06-15 Loi Thermprocess Gmbh Haubenofen
DE29907320U1 (de) * 1999-04-26 1999-08-12 Drever International S.A., Liègè Vorrichtung zum Kühlen von Werkstoffen
CN102878814B (zh) * 2012-10-31 2014-07-30 博广热能股份有限公司 散热面积可变散热器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3433433C1 (de) * 1984-09-12 1985-10-24 Otto Junker Gmbh, 5107 Simmerath Vorrichtung zum Erwaermen oder Kuehlen von metallischem Gut
DE3824415A1 (de) * 1988-07-19 1990-01-25 Gottfried Von Czarnowski Kuehlhaube zum schnellen abkuehlen von gluehgut, insbesondere stahlband
AT396525B (de) * 1992-03-20 1993-10-25 Ebner Ind Ofenbau Vorrichtung zum abkühlen der chargenschutzabdeckung von glühöfen
US5290017A (en) * 1993-03-01 1994-03-01 Indugas, Inc. Cooling cover for batch coil annealing furnace

Also Published As

Publication number Publication date
WO1995020058A1 (fr) 1995-07-27
ATE166927T1 (de) 1998-06-15
EP0740709A1 (fr) 1996-11-06
ATA9894A (de) 1994-11-15
ES2118553T3 (es) 1998-09-16
DE59502409D1 (de) 1998-07-09
AT399775B (de) 1995-07-25

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