DE563975C - Procedure for operating a continuous furnace - Google Patents

Procedure for operating a continuous furnace

Info

Publication number
DE563975C
DE563975C DENDAT563975D DE563975DD DE563975C DE 563975 C DE563975 C DE 563975C DE NDAT563975 D DENDAT563975 D DE NDAT563975D DE 563975D D DE563975D D DE 563975DD DE 563975 C DE563975 C DE 563975C
Authority
DE
Germany
Prior art keywords
cooling
gases
operating
continuous furnace
heating
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
DENDAT563975D
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.)
WILLY HOEHNE
Original Assignee
WILLY HOEHNE
Publication date
Application granted granted Critical
Publication of DE563975C publication Critical patent/DE563975C/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
    • F27B9/12—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
    • F27B9/12—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
    • F27B2009/126—Cooling involving the circulation of cooling gases, e.g. air
    • 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
    • F27B2009/3022—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally with arrangements to maintain oxidising reducing or neutral zones
    • 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)
    • 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
    • F27M2001/1539—Metallic articles
    • F27M2001/156—Flat articles
    • F27M2001/1565—Sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Description

Verfahren zum Betriebe eines Durchlaufofens Die Erfindung betrifft ein Verfahren zum Betriebe eines Ofens zum Anwärmen bzw. Ausglühen und anschließendem Abkühlen von Gegenständen, insbesondere von Platten, die durch eine besondere Vorrichtung liegend in horizontaler Richtung durch den Ofen geführt Weden und wobei das Glühgut in einem Arbeitsgang die unter sich getrennten Anwärme-, Glüh- und Abkühlräume des Ofens durchläuft. Bei einem derartigen Ofen ist es bekannt, daß die sauerstoffarmen, beispielsweise durch die reduzierende Verbrennung erzeugten Heizgase in den Abkühlraum geleitet und aus diesem abgesaugt bzw. durch diesen hindurchgedrückt werden.Method of Operating a Continuous Oven The invention relates to a method of operating a furnace for heating or annealing and then thereafter Cooling of objects, especially of plates, by a special device Weden passed horizontally through the furnace and the material to be annealed the separate heating, annealing and cooling rooms of the Oven. In such a furnace, it is known that the low-oxygen, For example, heating gases generated by the reducing combustion in the cooling room guided and sucked out of this or pushed through it.

Die Erfindung besteht darin, daß die Gase nach Austritt aus dem Glühraum und vor Eintritt in den Abkühlraum in einem Kühlwerk c gekühlt werden.The invention consists in that the gases after exiting the glow space and be cooled in a cooling unit c before entering the cooling space.

Nach dem neuen Verfahren besteht die Möglichkeit, das Glühgut je nach Bedarf durch die sauerstoffarm gewordenen und im Kühlwerk zurückgekühlten Gase plötzlich abzuschrecken und dadurch das Gefüge hochwertigen Gutes zu verbessern, wobei durch den Mangel an Sauerstoff ein Oxydieren des Glühgutes durch die Kühlgase auf einen Mindestbetrag herabgesetzt wird.According to the new process there is the possibility of the annealing material depending on Sudden demand due to the gases that have become low in oxygen and cooled down in the cooling plant to deter and thereby improve the structure of high-quality goods, whereby through the lack of oxygen an oxidation of the annealing material by the cooling gases on one Minimum amount is reduced.

In der Zeichnung ist ein an sich bekannter Durchläufofen, der nach dem neuen Verfahren arbeitet, beispielsweise im Schnitt dargestellt.In the drawing is a known continuous furnace, which is after the new method works, for example shown in section.

Es bedeuten a den Anwärme- und Glühraum, b den Abkühlraum, der anschließend an den Anwärmeraum, jedoch für den Durchtritt der Gase von diesem getrennt angeordnet ist, und c das gemäß der Erfindung angeordnete Kühlwerk, welches als Rekuperator ausgebildet ist, der gleichzeitig zum Vorwärmen der Frischluft für die Brenner h des Anwärmeraumes a dient. Ohne von dem Erfindungsgedanken abzugehen, kann auch jedes andere Kühlwerk zum Abkühlen der aus dem Glühraum a austretenden Heizgase dienen. Zum Durchführen des Gutes durch den Ofen dient beispielsweise ein Rollgang d, der durchlaufend durch Glüh- und Abkühlraum geführt ist. Zur besseren Abkühlung sind, wie an sich bekannt, im Abkühlraum b unter und über dem durchlaufenden Glühgut Kühlwasserbehälter e vorgesehen. Bei f erfolgt der Eintritt des auszuglühenden Gutes in den Ofen, bei g sein Austritt aus dem Ofen. Gemäß der. Erfindung gelangen die durch die reduzierende Verbrennung sauerstoffarmen Heizgase aus dem Glühraum a in Pfeilrichtung in das Kühlwerk (Rekuperator) c .und aus diesem gekühlt in den Abkühlraum b; die gekühlten Gase durchstreichen den Abkühlraum und ziehen durch den Abzugskanal i zum Schornstein. An Stelle des Schornsteinzuges können die Heizgase auch aus dem Raum a durch den Kühler c vermittels eines Ventilators abgesaugt und durch den Kühlraum bin den Schornstein gedrückt werden.It means a the heating and glowing room, b the cooling room, the one afterwards to the heating room, but arranged separately from this for the passage of the gases and c the cooling unit arranged according to the invention, which acts as a recuperator is formed, which at the same time to preheat the fresh air for the burner h of the heating room a is used. Without departing from the idea of the invention, can any other cooling plant for cooling down the hot gases emerging from the glow space a to serve. A roller table, for example, is used to guide the goods through the furnace d, which is led continuously through the annealing and cooling room. For better cooling are, as is known, in the cooling space b below and above the annealing material passing through Cooling water tank e provided. At f, the item to be annealed occurs into the oven, at g its exit from the oven. According to the. Invention reach the due to the reducing combustion, low-oxygen heating gases from the glow chamber a in Direction of the arrow in the cooling unit (recuperator) c. And cooled from there into the cooling room b; the cooled gases pass through the cooling chamber and pull through the exhaust duct i to the chimney. Instead of the chimney draft, the heating gases can also come from the Space a sucked through the cooler c by means of a fan and through the cooling room am pushed down the chimney.

Claims (1)

PATENTANSPRUCH: Verfahren zum Betriebe eines Durchlaufofens mit unter sich getrennten, waagerecht nebeneinanderliegenden Anwärme-, Glüh- und Abkühlräumen, bei dem die sauerstoffarmen Heizgase in der Förderrichtung des Gutes von dem Glühraum in den Abkühlraum geleitet und aus diesem abgesaugt bzw. durch diesen hindurchgedrückt werden, dadurch gekennzeichnet, daß die Gase nach Austritt aus dem Glühraum und vor Eintritt in den Abkühlraum in einem Kühlwerk (c) gekühlt werden.PATENT CLAIM: Process for operating a continuous furnace with under separate, horizontally adjacent heating, annealing and cooling rooms, in which the low-oxygen heating gases in the conveying direction of the goods from the glow chamber passed into the cooling chamber and sucked out of it or pushed through it are, characterized in that the gases after exiting the glow space and be cooled in a cooling unit (c) before entering the cooling room.
DENDAT563975D Procedure for operating a continuous furnace Expired DE563975C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE563975T

Publications (1)

Publication Number Publication Date
DE563975C true DE563975C (en) 1932-11-11

Family

ID=6566867

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT563975D Expired DE563975C (en) Procedure for operating a continuous furnace

Country Status (1)

Country Link
DE (1) DE563975C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165630B (en) * 1958-05-14 1964-03-19 Iaofuia Ofenbau Union G M B H Industrial furnace for the heat treatment of small pieces, especially metallic goods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165630B (en) * 1958-05-14 1964-03-19 Iaofuia Ofenbau Union G M B H Industrial furnace for the heat treatment of small pieces, especially metallic goods

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