EP1050731B1 - Four de cuisson - Google Patents

Four de cuisson Download PDF

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Publication number
EP1050731B1
EP1050731B1 EP20000108918 EP00108918A EP1050731B1 EP 1050731 B1 EP1050731 B1 EP 1050731B1 EP 20000108918 EP20000108918 EP 20000108918 EP 00108918 A EP00108918 A EP 00108918A EP 1050731 B1 EP1050731 B1 EP 1050731B1
Authority
EP
European Patent Office
Prior art keywords
furnace
chamber
firing
articles
furnace chamber
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.)
Revoked
Application number
EP20000108918
Other languages
German (de)
English (en)
Other versions
EP1050731A1 (fr
Inventor
Martin Wernet
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.)
Eisenmann Anlagenbau GmbH and Co KG
Original Assignee
Eisenmann Anlagenbau GmbH and Co KG
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=7906703&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1050731(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eisenmann Anlagenbau GmbH and Co KG filed Critical Eisenmann Anlagenbau GmbH and Co KG
Publication of EP1050731A1 publication Critical patent/EP1050731A1/fr
Application granted granted Critical
Publication of EP1050731B1 publication Critical patent/EP1050731B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means
    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • 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
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F27B9/3011—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally
    • 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
    • F27B2009/305—Particular conformation of the furnace
    • F27B2009/3055—Non-uniform section through the length of the 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
    • F27B9/36—Arrangements of heating devices
    • F27B2009/3638—Heaters located above and under the track
    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/029—Multicellular type furnaces constructed with add-on modules
    • 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
    • F27B9/40—Arrangements of controlling or monitoring devices
    • 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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means
    • F27D2007/045—Fans
    • 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
    • F27D99/007—Partitions

Definitions

  • the invention relates to a kiln with a furnace housing, in the interior of which a combustion chamber receiving furnace chamber is provided; with a conveyor system, with which the kiln is movable through the furnace chamber; with heaters, with which the furnace chamber and the gas located in the furnace chamber can be heated to the temperature required for firing; and with at least one zone in which a blower is provided, which sucks up rising gases from the furnace chamber and back into the furnace chamber and presses against the kiln.
  • Kilns of this type are known in a great many details (e.g., from US-A-3 869 249).
  • heaters come here all conceivable designs used, with which the furnace chamber and in particular the air located there can be brought to the required temperature.
  • Particularly preferred are open burners, with their combustion gases can be achieved in the furnace chamber turbulence, which are desirable to improve the heat exchange and to even out the temperature distribution.
  • Object of the present invention is to improve a kiln of the type mentioned in such a way that at a faster heating and firing a more uniform temperature distribution in the kiln can be achieved.
  • the heaters are arranged in the upper hall and in the hall of the conveyor system.
  • the "direct firing" of the oven space by the heater preferably a burner, supplemented by a gas circulation (if here and below of "gas” is mentioned, so it is generally to air, when using open burner in to a certain extent may contain combustion gases).
  • a gas circulation if here and below of "gas” is mentioned, so it is generally to air, when using open burner in to a certain extent may contain combustion gases.
  • the fan provided according to the invention, the convection in the furnace chamber is increased in a manner such as the turbulence generated by the burner itself can not achieve.
  • the blowing speed can be chosen so high that the circulated gases flow not only on the outer surfaces of the fuel but possibly also for the most part by the inner channels.
  • a partition wall which separates a suction space from a return space.
  • the efficiency of the fan can be increased and achieve a defined gas circulation.
  • the return space has close to the firing heranvrade bulkhead.
  • the firing material is thus located at the point at which the recirculated gases emerge from the recirculation space and still have a defined, directed flow velocity. This is especially important where internal channels of the fuel are to be flowed through.
  • the return space may be bridged at its end adjacent to the kiln by an outlet grate. This provides for an equalization of the circulation flow.
  • the housing in which in the region of the zones in which hot gases are circulated, the housing is provided with dome-like elevations. In these, due to its temperature rising heated gas can be collected and sucked particularly effective from the fan.
  • inventive concept for continuous kilns, which are equipped with a leading from an inlet to an outlet transport system for the kiln.
  • the kiln shown in the drawing which is generally designated by the reference numeral 1, is used for firing ceramic goods 7 and in particular those which are traversed by inner channels. It has a housing 2, which is supported by feet 3 at a certain distance above the floor 4.
  • the interior of the housing 2, the "furnace chamber” 5, is tunnel-shaped and leads from an outlet to an inlet, both of which are no longer shown in the detail shown in the drawing.
  • the housing 2 of the kiln 1 is enlarged towards the top by dome-like elevations 9.
  • the interior of the dome-like elevations 9 is in each case divided by a partition 10 into a suction space 11 and a return space 12.
  • a fan 13 is arranged, which sucks hot gases through an opening of the partition wall 10 from the suction chamber 11 and discharges into the return chamber 12.
  • Each blower 13 is driven by a motor 14 mounted outside the housing 2 of the kiln 1.
  • the return space 12 is extended downwardly by two bulkheads 15, 16; at its lower end, the return space 12 is straddled by an outlet grate 17. Also at the bulkhead 15 opposite the end of the dome-like elevations 9 each one in the furnace chamber 5 to near the goods 7 zoom reaching bulkhead 18 is attached.
  • the goods to be fired 7 are placed at the inlet to the conveyor system 6 and retracted by this in the interior of the oven chamber 5. With the help of the burner 8, they are increasingly brought to the temperature required for firing, in the area of dome-like elevations 9 is reached.
  • the burner 8 are, as already mentioned, regulated by a temperature control so that in all areas of the oven chamber 5 along the path of movement of the goods 7, a desired temperature profile is maintained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Details (AREA)
  • Tunnel Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Claims (6)

  1. Four de cuisson, avec une carcasse de four (2) à l'intérieur de laquelle est prévue une chambre de four (5) recevant le produit à cuire (7) ; avec un système de transport (6) par lequel le produit à cuire (7) peut être déplacé à travers la chambre de four (5) ; avec des équipements de chauffage (8) par lesquels la chambre de four (5) et le gaz se trouvant dans la chambre de four (5) peuvent être échauffés à la température nécessaire pour la cuisson ; et avec au moins une zone dans laquelle est prévue une soufflante (13) qui aspire les gaz chauds ascendants hors de la chambre de four (5) et les ramène dans la chambre de four en les refoulant vers le produit à cuire,
    caractérisé en ce que les équipements de chauffage (8) sont disposés au-dessus et en dessous du système de transport (6).
  2. Four de cuisson selon la revendication 1, caractérisé en ce qu'une cloison séparatrice (10) est prévue dans ladite zone, cloison qui sépare une chambre d'aspiration (11) d'une chambre de refoulement (12).
  3. Four de cuisson selon la revendication 2, caractérisé en ce que la chambre de refoulement (12) présente des cloisons étanches (15) s'étendant jusqu'à proximité du produit à cuire (7).
  4. Four de cuisson selon la revendication 2 ou 3, caractérisé en ce que la chambre de refoulement (12) est couverte, à son extrémité voisine du produit à cuire (7), par une grille d'évacuation (17).
  5. Four de cuisson selon l'une des revendications précédentes, caractérisé en ce que la carcasse (2) est pourvue de rehaussements (9) du genre dômes dans la région des zones dans lesquelles des gaz chauds sont mis en circulation.
  6. Four de cuisson selon l'une des revendications précédentes, caractérisé en ce qu'il est équipé, en tant que four de cuisson continu, d'un système de transport (6) pour le produit à cuire (7) menant d'une admission à une évacuation.
EP20000108918 1999-05-03 2000-04-27 Four de cuisson Revoked EP1050731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920136 1999-05-03
DE1999120136 DE19920136B4 (de) 1999-05-03 1999-05-03 Brennofen

Publications (2)

Publication Number Publication Date
EP1050731A1 EP1050731A1 (fr) 2000-11-08
EP1050731B1 true EP1050731B1 (fr) 2006-03-08

Family

ID=7906703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000108918 Revoked EP1050731B1 (fr) 1999-05-03 2000-04-27 Four de cuisson

Country Status (2)

Country Link
EP (1) EP1050731B1 (fr)
DE (2) DE19920136B4 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6457971B2 (en) * 1999-06-17 2002-10-01 Btu International, Inc. Continuous furnace having traveling gas barrier
EP1421035A1 (fr) 2001-07-11 2004-05-26 Feracitas Oy Procede destine a amener la chaleur sur une feuille de verre
AT412086B (de) * 2003-05-26 2004-09-27 Wienerberger Ag Verfahren zum brennen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE847426C (de) * 1945-10-31 1952-08-25 Brown Ag Elektrischer Tunnelofen fuer das Brennen von keramischem Gut
US3351687A (en) * 1965-01-08 1967-11-07 Midland Ross Corp Method and apparatus for firing ceramic bodies
FR1487284A (fr) * 1966-07-22 1967-06-30 B P Przemyslu Hutniczego Four à chauffage direct sans écaillage de la charge, en vue du traitement thermique des métaux
US3869249A (en) * 1974-03-22 1975-03-04 Indian Head Inc Curing oven
US3982889A (en) * 1975-07-14 1976-09-28 Olson Benjamin F Preheating system for aluminum remelt furnace
CH624460A5 (fr) * 1977-05-24 1981-07-31 Gautschi Electro Fours Sa
FR2524131A1 (fr) * 1982-03-25 1983-09-30 Glaskuhl Sa Appareil pour le traitement thermique d'objets par convection
DE3434906C2 (de) * 1984-09-22 1993-03-04 Otto Junker Gmbh, 5107 Simmerath Vorrichtung zum Vorwärmen von metallischem Gut
FR2584805B1 (fr) * 1985-07-12 1989-07-13 Elect Meca Et Const Perfectionnement aux installations de sechage et de cuisson de produits ceramiques
US5195673A (en) * 1991-09-25 1993-03-23 General Motors Corporation Method and apparatus for convection brazing of aluminum heat exchangers

Also Published As

Publication number Publication date
DE19920136A1 (de) 2000-11-16
EP1050731A1 (fr) 2000-11-08
DE19920136B4 (de) 2007-07-12
DE50012335D1 (de) 2006-05-04

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