EP0291631A2 - Four tunnel pour la cuisson de briques légères ayant un haut pourcentage de composés combustibles et volatiles - Google Patents

Four tunnel pour la cuisson de briques légères ayant un haut pourcentage de composés combustibles et volatiles Download PDF

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Publication number
EP0291631A2
EP0291631A2 EP88101735A EP88101735A EP0291631A2 EP 0291631 A2 EP0291631 A2 EP 0291631A2 EP 88101735 A EP88101735 A EP 88101735A EP 88101735 A EP88101735 A EP 88101735A EP 0291631 A2 EP0291631 A2 EP 0291631A2
Authority
EP
European Patent Office
Prior art keywords
gases
chamber
volatile components
circulating
degassing
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
EP88101735A
Other languages
German (de)
English (en)
Other versions
EP0291631B1 (fr
EP0291631A3 (en
Inventor
Hans Lingl
Otto Unterfrauner
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.)
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Original Assignee
Hans Lingl Anlagenbau und Verfahrenstechnik 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
Application filed by Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG filed Critical Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Priority to AT88101735T priority Critical patent/ATE77688T1/de
Publication of EP0291631A2 publication Critical patent/EP0291631A2/fr
Publication of EP0291631A3 publication Critical patent/EP0291631A3/de
Application granted granted Critical
Publication of EP0291631B1 publication Critical patent/EP0291631B1/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
    • 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
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor

Definitions

  • the invention relates to a tunnel furnace according to the preamble of claim 1.
  • a degassing chamber separated by gates is provided as the degassing zone between the combustion chamber and the preheating chamber.
  • the heating of these takes place indirectly through heat exchange surfaces which are heated by the exhaust gases from the furnace.
  • the degassing chamber has a gas circulation circuit. This mainly promotes lean gas, which arises from the volatile constituents of the raw material in the moldings. This lean gas is supplied from the degassing chamber either to the high-temperature zone of the combustion chamber for post-combustion or to an external device as a heating medium.
  • the invention has for its object to heat the firing material to 4oo ° C in the preheating chamber of the tunnel furnace and rid of harmful smoldering products.
  • the initial temperature of the smoldering process is not critical and the final temperature of the preheating can be set high enough to reliably detect all harmful gases, so that no smoldering products can get into the exhaust gases. 1oo% of the carbonization gases go through the afterburning device. There is also no separate degassing chamber, which also reduces the number of gates, the maintenance of which is problematic because of the high temperatures.
  • the drawing shows a schematic longitudinal section through the tunnel furnace with preheating chamber and combustion chamber.
  • a gas circulation circuit extends along the preheating chamber 3 and promotes gas generated from the volatile constituents of the fuel in the moldings by means of a fan 4.
  • the gas is withdrawn from suction openings 5 in the vicinity of the chamber entrance 6 and fed back into the combustion chamber 1 in front of the entrance gate 2.
  • an inlet 7 is provided for the supply of fresh air.
  • a first heating stage consisting of a heat exchanger, is connected in the circulation direction behind the fan 4, in which the circulation gases are preheated in exchange with the exhaust gas flow (flue gases) from the tunnel oven.
  • a branch is provided through which part of the gas (carbonization gas) is discharged and passed through a post-combustion device 9 and a further heat exchanger 10, to which the flue gas stream from the combustion chamber 1 of the tunnel furnace is admixed.
  • the further heat exchanger serves as the second heating stage of the circulating gases.
  • the fired material in the preheating chamber is heated exothermically in the range from 25o ° C to 4oo ° C.
  • the temperature of the circulating gases is increased as a result of the two-stage heating by the heat exchangers 8 and 10 to over 400 ° C., so that the continuity of the process in the preheating chamber 3 is ensured.
EP88101735A 1987-05-22 1988-02-06 Four tunnel pour la cuisson de briques légères ayant un haut pourcentage de composés combustibles et volatiles Expired - Lifetime EP0291631B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101735T ATE77688T1 (de) 1987-05-22 1988-02-06 Tunnelofen zum brennen von leichtziegeln mit hohem anteil an verbrenn- und vergasbaren bestandteilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3717320A DE3717320C1 (de) 1987-05-22 1987-05-22 Tunnelofen zum Brennen von Leichtziegeln mit hohem Anteil an verbrennbaren und vergasbaren Bestandteilen
DE3717320 1987-05-22

Publications (3)

Publication Number Publication Date
EP0291631A2 true EP0291631A2 (fr) 1988-11-23
EP0291631A3 EP0291631A3 (en) 1990-03-21
EP0291631B1 EP0291631B1 (fr) 1992-06-24

Family

ID=6328198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101735A Expired - Lifetime EP0291631B1 (fr) 1987-05-22 1988-02-06 Four tunnel pour la cuisson de briques légères ayant un haut pourcentage de composés combustibles et volatiles

Country Status (3)

Country Link
EP (1) EP0291631B1 (fr)
AT (1) ATE77688T1 (fr)
DE (1) DE3717320C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923887A1 (de) * 1989-07-19 1991-01-24 Manfred Leisenberg Kg Tunnelofen
WO2014184455A1 (fr) * 2013-05-16 2014-11-20 Cleia Installation de cuisson de produits en ceramique

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831558A1 (de) * 1988-09-16 1990-04-05 Munzert Karl Heinz Verfahren und durchlaufofen zum entfernen von schadstoffen aus abgasen
DE3908758C1 (en) * 1989-03-17 1990-04-19 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm, De Tunnel furnace for baking light bricks
DE4233916A1 (de) * 1992-10-08 1994-04-28 Gautschi Electro Fours Sa Verfahren und Vorrichtung zur Wärmebehandlung von Wärmgut in einem Industrieofen
DE4344214A1 (de) * 1993-12-23 1995-06-29 Innovatherm Prof Dr Leisenberg Gmbh & Co Kg Tunnelofen
DE102011119436B4 (de) 2011-11-25 2020-08-06 Eisenmann Se Vorrichtung zum Temperieren von Gegenständen
DE102013010885A1 (de) * 2013-07-01 2015-01-22 Eisenmann Ag Verfahren zum Sintern von Sinterwerkstücken sowie Anlage hierfür
DE102016001893A1 (de) 2016-02-17 2017-08-17 Eisenmann Se Brennereinheit und Vorrichtung zum Temperieren von Gegenständen
CN108826968A (zh) * 2018-07-05 2018-11-16 力华智能设备科技（东莞）有限公司 一种感应加热隧道炉

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE278184C (fr) *
US4140467A (en) * 1975-06-09 1979-02-20 Kenneth Ellison Convection oven and method of drying solvents
US4460331A (en) * 1983-05-12 1984-07-17 Haden Schweitzer Corporation Fume incineration for paint drying oven
DE3516058A1 (de) * 1984-08-21 1986-03-06 Institut für Ziegelforschung Essen e.V., 4300 Essen Tunnelofen zum brennen von keramischen rohlingen und verfahren zum betrieb eines solchen tunnelofens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060680A (en) * 1975-04-10 1977-11-29 Imperial Chemical Industries Limited Production of acrylonitrile copolymers
DE3014905B1 (de) * 1980-04-18 1981-02-19 Keller Ofenbau Gmbh Verfahren und Tunnelofen zum Brennen brennstoffhaltiger,keramischer Formlinge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE278184C (fr) *
US4140467A (en) * 1975-06-09 1979-02-20 Kenneth Ellison Convection oven and method of drying solvents
US4460331A (en) * 1983-05-12 1984-07-17 Haden Schweitzer Corporation Fume incineration for paint drying oven
DE3516058A1 (de) * 1984-08-21 1986-03-06 Institut für Ziegelforschung Essen e.V., 4300 Essen Tunnelofen zum brennen von keramischen rohlingen und verfahren zum betrieb eines solchen tunnelofens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923887A1 (de) * 1989-07-19 1991-01-24 Manfred Leisenberg Kg Tunnelofen
WO2014184455A1 (fr) * 2013-05-16 2014-11-20 Cleia Installation de cuisson de produits en ceramique
FR3005723A1 (fr) * 2013-05-16 2014-11-21 Cleia Installation de cuisson de produits en ceramique

Also Published As

Publication number Publication date
EP0291631B1 (fr) 1992-06-24
EP0291631A3 (en) 1990-03-21
DE3717320C1 (de) 1988-07-14
ATE77688T1 (de) 1992-07-15

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