DE568882C - Annealing furnace with uninterrupted conveyance of the incandescent material on conveyor rollers - Google Patents

Annealing furnace with uninterrupted conveyance of the incandescent material on conveyor rollers

Info

Publication number
DE568882C
DE568882C DER82457D DER0082457D DE568882C DE 568882 C DE568882 C DE 568882C DE R82457 D DER82457 D DE R82457D DE R0082457 D DER0082457 D DE R0082457D DE 568882 C DE568882 C DE 568882C
Authority
DE
Germany
Prior art keywords
conveyor rollers
rollers
furnace
annealing
annealing furnace
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
Application number
DER82457D
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.)
PHILIPP RACK
Original Assignee
PHILIPP RACK
Publication date
Priority to DER82457D priority Critical patent/DE568882C/en
Application granted granted Critical
Publication of DE568882C publication Critical patent/DE568882C/en
Expired legal-status Critical Current

Links

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
    • F27B9/14—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
    • F27B9/24—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 being carried by a conveyor
    • F27B9/2407—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 being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Description

Glühofen mit ununterbrochener Förderung des Glühgutes auf Förderrollen Gegenstand des Hauptpatentes 567 549 ist eine Fördervorrichtung für ununterbrochen arbeitende Glühöfen, bei welcher der Glühgutdurchlauf durch den Ofen durch Förderrollen, die durch am Umfang der Rollen angreifende Antriebsmittel in Drehung versetzt werden, vorgenommen wird. Dabei werden die Förderrollen durch Käfige, welche in der Ofensohle gelagert sind, gegen Verschiebung in waagerechter Richtung gesichert.Annealing furnace with uninterrupted conveyance of the annealing material on conveyor rollers The subject of the main patent 567 549 is a conveyor device for uninterrupted working annealing furnaces in which the annealing material passes through the furnace by conveyor rollers, which are set in rotation by drive means acting on the circumference of the rollers, is made. The conveyor rollers are driven by cages in the oven sole are stored, secured against displacement in the horizontal direction.

Gemäß der vorliegenden Erfindung werden die Förderrollen als Hohlwalzen ausgeführt, um hierdurch einen zwangsläufigen Umlauf der Heizgase und eine Erwärmung des Gliihgutes auf der Unterseite derselben durch Unterfeuerung zu erreichen. Durch die Maßnahme der weitgehenden Ausnutzung der Heizgaswärme wird der Brennstoffverbrauch sowie die Baulänge des Glühofens bei gleicher Leistung ganz erheblich verringert. Ein weiterer Vorteil der Unterfeuerung und eines zwangsläufigen Heizgasumlaufes besteht in der Gewährleistung einer großen Gleichförmigkeit der Erwärmung des Glühgutes.According to the present invention, the conveyor rollers are used as hollow rollers executed to thereby an inevitable circulation of the heating gases and a warming of the incandescent material on the underside of the same by means of underfiring. By the measure of extensive utilization of the heating gas heat is the fuel consumption and the overall length of the annealing furnace is reduced considerably with the same output. Another advantage of the underfiring and an inevitable heating gas circulation consists in ensuring a high degree of uniformity in the heating of the material to be annealed.

In der Zeichnung ist der Erfindungsgegenstand in beispielsweiser Ausführungsform dargestellt, und zwar zeigt die Abbildung einen Querschnitt durch den Glühofen und die hohle Förderrolle.In the drawing, the subject matter of the invention is shown in an exemplary embodiment shown, namely the figure shows a cross section through the annealing furnace and the hollow conveyor roller.

Die Förderrollen werden als Hohlwalzenk ausgebildet und können aus hitzebeständiger Metallegierung, wie etwa Chromnickel, sowie aus feuerfesten Stoffen, z. B. Chamotte oder Porzellan, hergestellt werden. Die Hohlwalzen k werden mit einer Bohrung q, wie es die Zeichnung schematisch veranschaulicht, und weiterhin je nach der Ofenbreite bzw. der Hohlwalzenlänge.mit einer größeren oder kleineren Anzahl von Schlitzen o versehen, die auf dem Umfang .der Walze zumeist gleichmäßig verteilt sind und durch welche die Abgase hindurchtreten können. Zur Erreichung eines zwangsläufigen Heizgasumlaufes werden je nach der Ofenbreite bzw. der Walzenlänge vor dem einen Ende oder beiden Enden der Hohlwalze k und deren Bohrung q Brenner l' angeordnet, deren austretender Strom heißer Verbrennungsgase durch Saugwirkung einen Teil der sich im oberen Ofenraum befindenden Heiz- bzw. Abgase durch die Öffnungen s in die Bohrung q der Hohlwalze k zwangsläufig mit hineinreißt, sich hierin mit den heißen Verbrennungsgasen der. Brenner vermischt und sodann durch die auf dem Umfang verteilten Schlitze o unter dem Glühgut austritt, um es auch von unten her gleichmäßig und allseitig zu erwärmen.The conveyor rollers are designed as hollow rollers and can be made from heat-resistant metal alloys, such as chromium-nickel, as well as refractory materials, z. B. Chamotte or porcelain. The hollow rollers k are with a Bore q as the drawing schematically illustrates, and continues depending on the furnace width or the length of the hollow rollers, with a larger or smaller number of slots o provided, which are mostly evenly distributed on the circumference of the roller and through which the exhaust gases can pass. To achieve an inevitable Heating gas circulation will be in front of the one depending on the width of the furnace or the length of the rollers End or both ends of the hollow roller k and its bore q burner l 'arranged, whose escaping stream of hot combustion gases part of the by suction heating or exhaust gases located in the upper furnace chamber through the openings s into the Bore q of the hollow roller k inevitably tears into it, here with the hot Combustion gases of the. Burner mixed and then distributed on the circumference Slots o emerge under the annealing material in order to make it even and even from below to be heated on all sides.

Claims (1)

PATENTANSPRUCH: Glühofen mit ununterbrochener Förderung des Glühgutes auf Förderrollen, welche kürzer als die lichte Ofenbreite sind und gemäß Patent 567 549 durch Käfige, welche in der Ofensohle angebracht sind, gegen Verschiebung in waagerechter Richtung gesichert werden, dadurch gekennzeichnet, daß die Förderrollen durch Hohlwalzen (k) gebildet werden, die in ihrem Mantel mehrere Schlitze (o) besitzen und in deren Mittelachsenverlängerung in den Ofenseitenwänden Brenner (L') derart angeordnet sind, daß ihre Flammengase beim Einströmen in den Walzenhohlraum (q) die oberhalb des Glühgutes befindlichen Heizgase mit sich reißen und durch die Schlitze (o) unter das Glühgut abführen. PATENT CLAIM: Annealing furnace with uninterrupted conveyance of the material to be annealed on conveyor rollers, which are shorter than the clear kiln width and, according to patent 567 549 , are secured against displacement in the horizontal direction by cages which are attached to the furnace base, characterized in that the conveyor rollers are made by hollow rollers ( k) are formed which have several slots (o) in their jacket and burners (L ') are arranged in their central axis extension in the furnace side walls in such a way that their flame gases when flowing into the roller cavity (q) carry the heating gases above the annealing material with them tear and discharge through the slits (o) under the annealing material.
DER82457D Annealing furnace with uninterrupted conveyance of the incandescent material on conveyor rollers Expired DE568882C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER82457D DE568882C (en) Annealing furnace with uninterrupted conveyance of the incandescent material on conveyor rollers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER82457D DE568882C (en) Annealing furnace with uninterrupted conveyance of the incandescent material on conveyor rollers

Publications (1)

Publication Number Publication Date
DE568882C true DE568882C (en) 1933-01-25

Family

ID=7416718

Family Applications (1)

Application Number Title Priority Date Filing Date
DER82457D Expired DE568882C (en) Annealing furnace with uninterrupted conveyance of the incandescent material on conveyor rollers

Country Status (1)

Country Link
DE (1) DE568882C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085180B (en) * 1955-08-26 1960-07-14 Hans Werner Rohrwasser Multi-zone continuous annealing furnace for protective gas operation with roller hearth
EP1083396A2 (en) * 1999-09-07 2001-03-14 Tck S.R.L. Kiln for firing industrial articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085180B (en) * 1955-08-26 1960-07-14 Hans Werner Rohrwasser Multi-zone continuous annealing furnace for protective gas operation with roller hearth
EP1083396A2 (en) * 1999-09-07 2001-03-14 Tck S.R.L. Kiln for firing industrial articles
EP1083396A3 (en) * 1999-09-07 2001-08-01 Tck S.R.L. Kiln for firing industrial articles

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