DE1255866B - Device for cooling ceramic material in tunnel ovens - Google Patents

Device for cooling ceramic material in tunnel ovens

Info

Publication number
DE1255866B
DE1255866B DE1963F0040617 DEF0040617A DE1255866B DE 1255866 B DE1255866 B DE 1255866B DE 1963F0040617 DE1963F0040617 DE 1963F0040617 DE F0040617 A DEF0040617 A DE F0040617A DE 1255866 B DE1255866 B DE 1255866B
Authority
DE
Germany
Prior art keywords
cooling
register
longitudinal direction
length
furnace channel
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.)
Pending
Application number
DE1963F0040617
Other languages
German (de)
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.)
Fetok GmbH
Original Assignee
Fetok 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
Application filed by Fetok GmbH filed Critical Fetok GmbH
Priority to DE1963F0040617 priority Critical patent/DE1255866B/en
Priority claimed from DEF40616A external-priority patent/DE1196563B/en
Priority to US390136A priority patent/US3263738A/en
Publication of DE1255866B publication Critical patent/DE1255866B/en
Pending legal-status Critical Current

Links

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • 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
    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D2001/0079—Means to assemble at least two parts of a furnace or of any device or accessory associated to its use
    • F27D2001/0083—Means to assemble a moving part to a fixed one
    • F27D2001/0089—Means to assemble a moving part to a fixed one the moving part being in translation
    • 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
    • F27D2009/007—Cooling of charges therein
    • F27D2009/0081—Cooling of charges therein the cooling medium being a fluid (other than a gas in direct or indirect contact with the charge)
    • F27D2009/0083—Cooling of charges therein the cooling medium being a fluid (other than a gas in direct or indirect contact with the charge) the fluid being water
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0062—Shields for the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1504—Ceramic articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Tunnel Furnaces (AREA)

Description

Vorrichtung zum Kühlen von keramischem Gut in Tunnelöfen In der Hauptpatentanmeldung ist eine Vorrichtung zum Kühlen von keramischem Gut in Tunnelöfen durch indirekte Kühlung mittels eines von einem gasförmigen oder flüssigen Kühlmittel durchströmten, vor den Seitenwandungen und/oder dem Gewölbe des Ofenkanals angeordneten Kühlsystems beschrieben, deren Kennzeichen darin besteht, daß das Kühlsystem in voneinander unabhängige, in der Längsrichtung des Ofenkanals verschiebbare, z. B. verfahrbare und/oder aus diesem herausnehmbare Register unterteilt ist, so daß der Kühlvorgang durch Verschieben von Registern regelbar ist.Device for cooling ceramic material in tunnel kilns In the main patent application is a device for cooling ceramic material in tunnel kilns by indirect Cooling by means of a coolant through which a gaseous or liquid coolant flows, cooling system arranged in front of the side walls and / or the vault of the furnace duct described, the characteristic of which is that the cooling system in from each other independent, displaceable in the longitudinal direction of the furnace channel, e.g. B. movable and / or is divided from this removable register, so that the cooling process can be regulated by moving registers.

Zweck dieser Maßnahme ist es, die Kühlwirkung der Register in bestimmten Bereichen gefährlicher Temperaturintervalle bei wechselnden Ofenleistungen örtlich vollständig auszuschalten.The purpose of this measure is to reduce the cooling effect of the register in certain Areas of dangerous temperature intervals with changing furnace outputs locally turn off completely.

Die Bewegung der Kühlregister läßt sich erwünschtenfalls ohne Schwierigkeiten automatisch temperaturabhängig steuern.If desired, the movement of the cooling register can be carried out without difficulty control automatically depending on the temperature.

Die Erfindung will diese Vorrichtung dahingehend verbessern, daß eine noch gleichmäßigere Temperaturverteilung über den Ofenkanalquerschnitt erreicht wird.The invention seeks to improve this device that a Even more uniform temperature distribution over the furnace duct cross-section is achieved will.

Diese Verbesserung wird dadurch erzielt, daß man in weiterer Fortbildung des Vorschlages nach der Hauptpatentanmeldung wenigstens den im Bereich der höchsten Temperaturen und/oder der Quarzumwandlungspunkte angeordneten verfahrbaren Kühlregistern eine durch einen ortsfesten Einbau im Ofenkanal gebildete Abschirmung zuordnet, hinter welche das betreffende Kühlregister ganz oder teilweise verschiebbar ist. Die Breite der Register und auch der ortsfesten Abschirmungen kann dabei innerhalb weiter Grenzen beliebig bemessen sein, so daß besonders vorteilhafte Anpassungsmöglichkeiten gegeben sind.This improvement is achieved by further training of the proposal according to the main patent application at least in the area of the highest Temperatures and / or the quartz conversion points arranged movable cooling registers assigns a shield formed by a fixed installation in the furnace duct, behind which the relevant cooling register can be completely or partially displaced. The width of the register and also of the stationary shields can be within further limits can be dimensioned as desired, so that particularly advantageous adaptation options given are.

Zweckmäßig werden die abschirmenden Einbauten in Längsrichtung der Kühlzone unterschiedlich wärmeleitend ausgebildet, so daß sie eine mehr oder weniger starke Abschirmwirkung aufweisen. Diese unterschiedliche wärmeleitende Ausbildung läßt sich beispielsweise dadurch erzielen, daß man für die einzelnen Einbauten mehr oder weniger gut wärmeleitendes Material und gegebenenfalls eine größere oder geringere Wandstärke wählt oder aber auch Perforierungen vorsieht.The shielding internals are expediently in the longitudinal direction of the Cooling zone formed differently thermally conductive, so that they have a more or less have a strong shielding effect. This different thermally conductive training can be achieved, for example, by more for the individual internals or material with less good thermal conductivity and possibly a larger or smaller one Selects wall thickness or provides perforations.

Die in Längsrichtung des Ofenkanals gemessene Länge der Kühlregister wird in weiterer Ausbildung der Erfindung wenigstens gleich der Länge der auf den Brennwagen in der Längserstreckung des Ofenkanals angeordneten, zu brennenden Körper gewählt.The length of the cooling register measured in the longitudinal direction of the furnace duct is in a further embodiment of the invention at least equal to the length of the Firing car arranged in the longitudinal extension of the furnace channel, body to be fired chosen.

Bei einer solchen Ausbildung läßt sich im Zusammenhang mit dem Grundgedanken der vorliegenden Erfindung ein besonders vorteilhaftes Verfahren beim diskontinuierlichen Vorschub der Brennwagen durch den Tunnelofen durchführen, bei dem die Kühlregister unmittelbar vor dem Vorschieben hinter die zugeordnete Abschirmung verbracht und nach jedem Vorschub sofort aus dem sie bis dahin aufnehmenden abgeschirmten Schlitz herausgezogen und damit praktisch gleichzeitig zur Einwirkung auf die gesamte Brenngutlänge gebracht werden.With such a training can be in connection with the basic idea of the present invention a particularly advantageous process in the batch Carry out advance of the kiln carriage through the tunnel furnace, in which the cooling register placed behind the assigned shield immediately before advancing and immediately after each feed from the shielded slot that has received them up to that point pulled out and thus practically simultaneously acting on the entire length of the item to be fired to be brought.

Diese gleichmäßige Kühlwirkung auf dem Besatz eines längere Zeit stillstehenden Brennwagens ist besonders wichtig, wenn sich auf den Brennwagen langgestrecktes, z. B. plattenförmiges Gut von entsprechenden Längsabmessungen befindet.This uniform cooling effect on the fill of a long period of idle Brennwagen is particularly important when elongated, z. B. is plate-shaped material of corresponding longitudinal dimensions.

Selbstverständlich brauchen die abschirmenden Einbauten, hinter denen die Kühlregister je nach Wunsch zum Verschwinden gebracht werden können, nicht jedem der vielen über die Länge der Kühlzone verteilten Kühlregister zugeordnet zu sein. Es genügt in der Regel, sie nur in den Bereichen des Ofenkanals vorzusehen, in welchen die höchsten Temperaturen herrschen, nämlich unmittelbar anschließend an die Brennzone, ferner in den Bereichen, in welchen es auf eine besonders gute Regelungsmöglichkeit der Kühlwirkung ankommt, z. B. in den Bereichen der Quarzumwandlung.Needless to say, the shielding installations behind them need the cooling registers can be made to disappear as desired, not for everyone to be assigned to the many cooling registers distributed over the length of the cooling zone. It is usually sufficient to provide them only in the areas of the furnace duct in which the highest temperatures prevail, namely immediately adjacent to the combustion zone, also in the areas in which there is a particularly good possibility of regulation the cooling effect matters, z. B. in the areas of quartz conversion.

Die Zeichnung zeigt beispielsweise in F i g. 1 einen Horizontalschnitt durch den an die Scharffeuerzone anschließenden Bereich der Abkühlzone mit Einbau der erfindungsgemäßen Vorrichtung und in F i g. 2 einen senkrechten Querschnitt durch den Ofenkanal längs der Linie 1-I der F i g. 1. In den Zeichnungen ist mit a die Wandung des Ofenkanals bezeichnet, durch den der Brennwagenzug in Richtung des Pfeiles vorgeschoben wird. Die linke Begrenzung der F i g. 1 entspricht etwa dem Ende der Brennzone. Mit b', b" sind die ortsfesten Einbauten bezeichnet, hinter welche die Kühlregister c', c" verbracht werden können, die in der Zeichnung in vollen Linien in ihrer wirksamen und gestrichelt in ihrer voll durch die abschirmenden Einbauten abgedeckten Stellung dargestellt sind.The drawing shows, for example, in FIG. 1 shows a horizontal section through the area of the cooling zone adjoining the hot firing zone with the installation of the device according to the invention and in FIG. FIG. 2 shows a vertical cross section through the furnace channel along the line 1-I of FIG. 1. In the drawings, a denotes the wall of the furnace channel through which the kiln car train is advanced in the direction of the arrow. The left boundary of the F i g. 1 corresponds roughly to the end of the burn zone. With b ', b " are the stationary fixtures, behind which the cooling register c', c" can be brought, which are shown in the drawing in full lines in their effective and dashed in their position fully covered by the shielding fixtures.

Die Kühlregister können nach der Hauptpatentanmeldung auf zweckentsprechend ausgebildeten Schienen verfahrbar, aber auch aufgehängt verfahrbar sein.The cooling registers can be used according to the main patent application trained rails movable, but also be movable suspended.

Sie sind, wie F i g. 2 erkennen läßt, über sich durch Abdichtungskörper d', d" abgedeckte Schlitze e', e" im Ofengewölbe erstreckende biegsame Leitungen f , f" an eine nicht dargestellte Zuleitung für das Kühlmittel angeschlossen.They are like F i g. 2 shows that flexible lines f, f "which extend in the furnace vault are connected to a supply line (not shown) for the coolant via slots e ', e" covered by sealing bodies d', d ".

Nach F i g. 2 erstrecken sich die Abschirmungen b', b", die hier eine gegenüber F i g.1 dünnere Wandstärke aufweisen, bis zum Gewölbe des Ofenkanals, so daß lediglich an ihren Endseiten offene Kammern gebildet werden, in welche die Kühlregister c', c' je nach Wunsch mehr oder weniger weit verschoben werden können.According to FIG. 2, the shields b ', b ", which here have a wall thickness thinner than that of FIG. can be shifted to a greater or lesser extent as desired.

Claims (4)

Patentansprüche: 1. Vorrichtung zum Kühlen von keramischem Gut in Tunnelöfen durch indirekte Kühlung mittels eines von einem gasförmigen oder flüssigen Kühlmittel durchströmten, vor den Seitenwandungen und/oder dem Gewölbe des Ofenkanals angeordneten Kühlsystems, das in voneinander unabhängige, in der Längsrichtung des Ofenkanals verschiebbare Register unterteilt ist, so daß der Kühlvorgang durch Verschieben von Registern regelbar ist, nach Patentanmeldung F 4061.6 VIa'31 a1., dadurch gekennzeichn e t . daß wenigstens den im Bereich der höchsten Temperaturen und/oder der Quarzumwandlungspunkte angeordneten verschiebbaren Kühlregistern eine durch einen ortsfesten Einbau im Ofenkanal gebildete Abschirmung zugeordnet ist, hinter welche das betreffende Kühlregister ganz oder teilweise verschiebbar ist. Claims: 1. Device for cooling ceramic material in Tunnel kilns by indirect cooling by means of one of a gaseous or liquid Coolant flowed through in front of the side walls and / or the vault of the furnace channel arranged cooling system, which in independent, in the longitudinal direction of the Oven channel sliding register is divided, so that the cooling process by moving can be regulated by registers, according to patent application F 4061.6 VIa'31 a1., marked thereby e t. that at least in the region of the highest temperatures and / or the quartz transformation points arranged displaceable cooling registers one by a fixed installation in the Shielding formed in the furnace channel is assigned, behind which the relevant cooling register is completely or partially displaceable. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die abschirmenden Einbauten in Längsrichtung der Kühlzone unterschiedlich wärmeleitend ausgebildet sind. 2. Device according to claim 1, characterized in that that the shielding internals conduct different heat in the longitudinal direction of the cooling zone are trained. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die in der Längsrichtung des Ofenkanals gemessene Länge der Kühlregister wenigstens gleich der Länge der auf den Brennwagen in der Längserstreckung des Ofenkanals angeordneten, zu brennenden Körper ist. 3. Device according to claim 1 or 2, characterized in that that the length of the cooling register measured in the longitudinal direction of the furnace channel is at least equal to the length of the arranged on the kiln carriage in the longitudinal extension of the furnace channel, too burning body is. 4. Verfahren zum Betrieb von diskontinuierlich betriebenen Tunnelöfen mit einer Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Kühlregister unmittelbar vor dem Vorschieben hinter die zugeordnete Abschirmung verbracht und nach jedem Vorschub sofort aus dem sie bis dahin aufnehmenden abgeschirmten Schlitz herausgezogen und damit praktisch gleichzeitig zur Einwirkung auf die gesamte Brenngutlänge gebracht werden.4. Process for operating discontinuously operated Tunnel kilns with a device according to Claim 3, characterized in that the Cooling register immediately before being pushed in behind the assigned shield spent and immediately after each feed from the screened up until then Slit pulled out and thus practically simultaneously to act on the entire Bring length to be fired.
DE1963F0040617 1963-08-29 1963-08-29 Device for cooling ceramic material in tunnel ovens Pending DE1255866B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1963F0040617 DE1255866B (en) 1963-08-29 1963-08-29 Device for cooling ceramic material in tunnel ovens
US390136A US3263738A (en) 1963-08-29 1964-08-17 Process for controlling the cooling process in a tunnel furnace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF40616A DE1196563B (en) 1963-08-29 1963-08-29 Device for cooling ceramic material in tunnel ovens
DE1963F0040617 DE1255866B (en) 1963-08-29 1963-08-29 Device for cooling ceramic material in tunnel ovens

Publications (1)

Publication Number Publication Date
DE1255866B true DE1255866B (en) 1967-12-07

Family

ID=25975917

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1963F0040617 Pending DE1255866B (en) 1963-08-29 1963-08-29 Device for cooling ceramic material in tunnel ovens

Country Status (1)

Country Link
DE (1) DE1255866B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394612A1 (en) * 1977-03-01 1979-01-12 Industrieofenbau Iog Cooling zone with adjustable baffles for continuous furnace - esp. for the heat treatment of cast iron pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394612A1 (en) * 1977-03-01 1979-01-12 Industrieofenbau Iog Cooling zone with adjustable baffles for continuous furnace - esp. for the heat treatment of cast iron pipes

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