EP0302140A1 - Tunnel kiln with continuously passing kiln cars - Google Patents

Tunnel kiln with continuously passing kiln cars Download PDF

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Publication number
EP0302140A1
EP0302140A1 EP87116196A EP87116196A EP0302140A1 EP 0302140 A1 EP0302140 A1 EP 0302140A1 EP 87116196 A EP87116196 A EP 87116196A EP 87116196 A EP87116196 A EP 87116196A EP 0302140 A1 EP0302140 A1 EP 0302140A1
Authority
EP
European Patent Office
Prior art keywords
kiln
tunnel
cars
wagon
trains
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
EP87116196A
Other languages
German (de)
French (fr)
Other versions
EP0302140B1 (en
Inventor
Hans Lingl
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
Priority claimed from DE19873725857 external-priority patent/DE3725857C1/en
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 AT87116196T priority Critical patent/ATE62738T1/en
Publication of EP0302140A1 publication Critical patent/EP0302140A1/en
Application granted granted Critical
Publication of EP0302140B1 publication Critical patent/EP0302140B1/en
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
    • F27D9/00—Cooling of furnaces or of charges therein
    • 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
    • F27B9/26—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 on or in trucks, sleds, or containers
    • F27B9/262—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 on or in trucks, sleds, or containers on or in trucks

Definitions

  • the invention relates to a tunnel kiln according to the preamble of claim 1.
  • a tunnel kiln of this type is the subject of European application 87102005.3, according to which the tunnel kiln is single-stranded, that is to say has only one drive train for a kiln car train.
  • the invention has for its object to design the tunnel kiln so that kiln cars can run through it with two or more trains in parallel next to each other without partitions and even in this multi-line kiln leakage between the undercarriage duct and the combustion duct are largely excluded.
  • Two or more kiln car trains 2 consisting of closely adjoining kiln cars are run parallel to one another in a track-bound manner through the multi-strand tunnel kiln 1, the kiln cars running closely along the side walls of the kiln 5, whereby a combustion channel 9 forms above the trains and an undercarriage channel 8 below them.
  • the furnace trolleys are provided on their end faces with aprons 4, which grind against the furnace walls 5 or a base 6 and reach down at most a short distance from the furnace foundation 7, so that a longitudinal flow in the undercarriage duct 8 in the heating region of the furnace 1 is prevented.
  • the base 6 runs along the furnace 1 between two wagon trains 2 and protrudes from the foundation 7 of the furnace 1 approximately at the height of the undercarriage duct 8.
  • the undercarriage is cooled in a cooling area which extends at most from the middle of the firing zone over the cooling zone of the furnace (not shown).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Tunnel kiln (1) with wagons running through in the form of a tightly closed wagon train (2), on the end faces of which wagons there are arranged sealing skirts (4) which extend downwards, brush against the kiln walls (5), have at the most a small separation from the base (7) of the tunnel kiln and form sections of the under-wagon channel (8) along the length of the kiln. With the arrangement of two or more wagon trains (2) parallel next to one another along the tunnel kiln (1), there projects upwards between two wagon trains (2), from the base (7) of the kiln and corresponding approximately to the height of the under-wagon channel (8), a plinth (6), against which the skirts (4) brush. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Tunnelofen entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a tunnel kiln according to the preamble of claim 1.

Ein Tunnelofen dieser Art ist Gegenstand der europä­ischen Anmeldung 87102005.3, wonach der Tunnelofen einsträn­gig ist, das heißt, nur einen Fahrstrang für einen Ofenwagen­zug hat.A tunnel kiln of this type is the subject of European application 87102005.3, according to which the tunnel kiln is single-stranded, that is to say has only one drive train for a kiln car train.

Es is bekannt, daß mehrer Ofenwagenzüge parallel nebenein­ander ohne Zwischenwände einen entsprechend mehrsträngigen Tunnelofen durchfahren. Die Ofenwagen sind an ihren Längs­seiten mit Sandschürzen ausgerüstet, die in mit Sand gefüllte Rinnen im Ofenfundament eintauchen, um eine Dichtung zum Unterwagenkanal zu schaffen. Dabei ist ein größerer Abstand zwischen den Ofenwagenzügen erfoderlich, um eine Sandzufüh­rung zur dort befindlichen Sandrinne zu ermöglichen. Wie sich herausgestellt hat, ist dies in bezug auf die Strömungsverhält­nisse im Brennkanal ungünstig. Zudem vermehrt die Vielzhal von Sandrinnen bei mehrsträngigem Betrieb die ohnehin schon vorhandenen Undichtigkeiten zwischen Brennkanal und Unter­wagenkanal und führt zu Problemen in der Aufheizzone des Ofens. Mehrsträngige Tunnelöfen ohne Zwischenwände werden deshalb seit längerem nicht mehr gebaut.It is known that several kiln car trains pass through a correspondingly multi-strand tunnel kiln in parallel next to one another without partition walls. On their long sides, the kiln cars are equipped with sand aprons, which dip into channels filled with sand in the kiln foundation to create a seal to the undercarriage channel. This requires a greater distance between the kiln car trains to allow sand to be fed to the sand channel located there. As has been found, this is unfavorable in relation to the flow conditions in the combustion channel. In addition, the multitude of gullies increases the already existing leaks between the combustion duct and the undercarriage duct in multi-strand operation and leads to problems in the heating zone of the furnace. Multi-strand tunnel kilns without partition walls have therefore not been built for a long time.

Der Erfindung liegt die Aufgabe zugrunde, den Tunnelofen so auszubilden, daß ihn Ofenwagen auch mit zwei oder mehr Zügen parallel nebeneinander ohne Zwischenwände durchlau­fen können und auch bei diesem mehrsträngigen Ofenbetrieb Undichtigkeit zwischen Unterwagenkanal und Brennkanal weitest­gehend ausgeschlossen sind.The invention has for its object to design the tunnel kiln so that kiln cars can run through it with two or more trains in parallel next to each other without partitions and even in this multi-line kiln leakage between the undercarriage duct and the combustion duct are largely excluded.

Diese Aufgabe wird durch die im Patentanspruch gekenn­zeichneten Merkmale des Tunnelofens gelöst.This object is achieved by the features of the tunnel oven characterized in the claim.

Der Vorteil dieser Ausbildung des Fundaments besteht darin, daß nunmehr bei einem mehrsträngigen Tunnelofen ohne Zwischenwände eine nahezu vollkommene Abdichtung erreicht und der Abstand zwischen benachbarten Wagen­zügen gering gehalten werden kann. Außerdem können die bei älteren, mehrsträngigen Tunnelöfen üblichen schmalen Ofenwagen mit einfacher Umrüstung wieder verwendet werden.The advantage of this formation of the foundation is that now with a multi-strand tunnel furnace without partitions an almost perfect seal is achieved and the distance between adjacent wagon trains can be kept small. In addition, the narrow kiln cars common to older, multi-strand tunnel kilns can be reused with simple retrofitting.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und nachstehend beschrieben.An embodiment of the invention is shown in the drawing and described below.

Zwei oder mehr aus dicht aneinander anschließenden Ofen­wagen bestehende Ofenwagenzüge 2 werden gleisgebunden parallel nebeneinander durch den mehrsträngigen Tunnel­ofen 1 gefahren, wobei die Ofenwagen eng entlang den Ofenseitenwänden 5 laufen, wodurch oberhalb der Züge ein Brennkanal 9 und unterhalb derselben ein Unterwagen­kanal 8 sich bildet. Die Ofenwagen sind an ihren Stirn­seiten mit Schürzen 4 versehen, die gegen die Ofenwände 5 bzw. einen Sockel 6 schleifen und mit allenfalls geringem Abstand zum Ofenfundament 7 herabreichen, so daß eine Längsströmung im Unterwagenkanal 8 im Aufheizbereich des Ofens 1 unterbunden wird. Der sockel 6 verläuft längs des Ofens 1 zwischen zwei Wagenzügen 2 und ragt vom Fundament 7 des Ofens 1 etwa in der Höhe des Unter­wagenkanals 8 nach oben.Two or more kiln car trains 2 consisting of closely adjoining kiln cars are run parallel to one another in a track-bound manner through the multi-strand tunnel kiln 1, the kiln cars running closely along the side walls of the kiln 5, whereby a combustion channel 9 forms above the trains and an undercarriage channel 8 below them. The furnace trolleys are provided on their end faces with aprons 4, which grind against the furnace walls 5 or a base 6 and reach down at most a short distance from the furnace foundation 7, so that a longitudinal flow in the undercarriage duct 8 in the heating region of the furnace 1 is prevented. The base 6 runs along the furnace 1 between two wagon trains 2 and protrudes from the foundation 7 of the furnace 1 approximately at the height of the undercarriage duct 8.

Die Unterwagenkühlung erfolgt in einem höchstens ab Mitte der Brennzone über die Kühlzone des Ofens (nicht darge­stellt) sich erstreckenden Kühlbereich.The undercarriage is cooled in a cooling area which extends at most from the middle of the firing zone over the cooling zone of the furnace (not shown).

Claims (1)

Tunnelofen mit einem durch die eng an den Tunnel­seitenwänden laufende Ofenwagen oberhalb der Ofen­wagen gebildeten Brennkanal und mit einem unterhalb der Ofenwagen angeordneten Unterwagenkanal sowie mit an den Ofenwagen angeordneten Schürzen, die nur an der Stirnseite mindestens eines der benachbarten Ofen­wagen gegen die Ofenwände schleifend und mit allenfalls geringem Abstand zum Fundament des Ofens herabrei­chend angebracht sind und Abschnitte des Unterwagen­kanals in Ofenwagenlänge bilden,
dadurch gekennzeichnet,
daß bei Anordnung von zwei oder mehr Zügen von Ofen­wagen (2) längs des Tunnelofens (1) zwischen zwei Wagenzügen (2) ein etwa der Höhe des Unterwagenkanals (8) entsprechender, vom Boden des Fundaments (7) hochragender Sockel (6) angeordnet ist, gegen den die Schürzen (4) schleifen.Tunnel kiln with a firing channel formed above the kiln cars by the kiln cars running closely to the tunnel side walls and with an undercarriage channel arranged underneath the kiln cars as well as aprons arranged on the kiln cars that only grind at least one of the neighboring kiln cars against the kiln walls at the front and with little if any The distance to the foundation of the furnace is sufficient and form sections of the undercarriage duct in the length of the furnace carriage,
characterized,
that when two or more trains of kiln cars (2) are arranged along the tunnel furnace (1) between two car trains (2), a base (6) projecting from the floor of the foundation (7) and corresponding to the height of the undercarriage channel (8) is arranged against which the aprons (4) rub.
EP87116196A 1987-08-04 1987-11-04 Tunnel kiln with continuously passing kiln cars Expired - Lifetime EP0302140B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116196T ATE62738T1 (en) 1987-08-04 1987-11-04 TUNNEL FURNACE WITH FURNACE CARS RUNNING AS TRAIN.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873725857 DE3725857C1 (en) 1986-02-13 1987-08-04 Tunnel furnace with good efficiency and reliability - includes carriage which runs close to furnace walls, firing channel and lower carriage channel set below main carriage
DE3725857 1987-08-04

Publications (2)

Publication Number Publication Date
EP0302140A1 true EP0302140A1 (en) 1989-02-08
EP0302140B1 EP0302140B1 (en) 1991-04-17

Family

ID=6333043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116196A Expired - Lifetime EP0302140B1 (en) 1987-08-04 1987-11-04 Tunnel kiln with continuously passing kiln cars

Country Status (3)

Country Link
EP (1) EP0302140B1 (en)
AT (1) ATE62738T1 (en)
AU (1) AU586131B2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR404208A (en) * 1909-06-19 1909-11-25 John L Harper Electric oven for firing bricks, pottery and other uses
FR488732A (en) * 1918-02-02 1918-11-08 Frederic Philippon Recovery furnace for the manufacture, annealing, melting or firing of certain products
FR2447002A1 (en) * 1979-01-17 1980-08-14 Coudamy Sa Thermique Indle Wagon for ceramic firing tunnel kiln - with ceramic fibre cloth layers sweeping kiln walls at chassis level to reduce thermal losses
DE3121709A1 (en) * 1980-06-12 1982-04-08 Walter Ing. 4810 Gmunden Rieger Heat-resistant device for sealing gaps
DE3708172C1 (en) * 1987-03-13 1987-11-05 Keller Gmbh & Co Kg Kiln for baking moulded ceramic articles
DE3604501C1 (en) * 1986-02-13 1993-01-14 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm Method and device for cooling undercarriage of kiln cars in a tunnel kiln

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521704A1 (en) * 1982-02-12 1983-08-19 Hartmann Pere & Fils SEALING DEVICE FOR FOUR-TUNNEL, AND WAGONS AND FOUR-TUNNEL AGENCIES FOR OBTAINING THIS DEVICE
IT1172847B (en) * 1983-12-29 1987-06-18 Sirma PROCESS OF COOKING ANODES IN TUNNEL AND TROLLEY OVENS TO CARRY OUT THE PROCEDURE
US4560350A (en) * 1984-03-29 1985-12-24 Resco Products, Inc. End block

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR404208A (en) * 1909-06-19 1909-11-25 John L Harper Electric oven for firing bricks, pottery and other uses
FR488732A (en) * 1918-02-02 1918-11-08 Frederic Philippon Recovery furnace for the manufacture, annealing, melting or firing of certain products
FR2447002A1 (en) * 1979-01-17 1980-08-14 Coudamy Sa Thermique Indle Wagon for ceramic firing tunnel kiln - with ceramic fibre cloth layers sweeping kiln walls at chassis level to reduce thermal losses
DE3121709A1 (en) * 1980-06-12 1982-04-08 Walter Ing. 4810 Gmunden Rieger Heat-resistant device for sealing gaps
DE3604501C1 (en) * 1986-02-13 1993-01-14 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm Method and device for cooling undercarriage of kiln cars in a tunnel kiln
DE3708172C1 (en) * 1987-03-13 1987-11-05 Keller Gmbh & Co Kg Kiln for baking moulded ceramic articles

Also Published As

Publication number Publication date
AU8127087A (en) 1989-02-09
EP0302140B1 (en) 1991-04-17
AU586131B2 (en) 1989-06-29
ATE62738T1 (en) 1991-05-15

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