DE20220240U1 - Rotating hearth furnace, for heat treatment of workpieces, has two openings for loading and unloading, separated by heating zone - Google Patents

Rotating hearth furnace, for heat treatment of workpieces, has two openings for loading and unloading, separated by heating zone

Info

Publication number
DE20220240U1
DE20220240U1 DE20220240U DE20220240U DE20220240U1 DE 20220240 U1 DE20220240 U1 DE 20220240U1 DE 20220240 U DE20220240 U DE 20220240U DE 20220240 U DE20220240 U DE 20220240U DE 20220240 U1 DE20220240 U1 DE 20220240U1
Authority
DE
Germany
Prior art keywords
loading
heating zone
unloading
hearth furnace
rotary hearth
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 - Lifetime
Application number
DE20220240U
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.)
LOI Thermprocess GmbH
Original Assignee
LOI Thermprocess 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 LOI Thermprocess GmbH filed Critical LOI Thermprocess GmbH
Priority to DE20220240U priority Critical patent/DE20220240U1/en
Publication of DE20220240U1 publication Critical patent/DE20220240U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F27B9/16—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 circular or arcuate path
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0037—Rotary furnaces with vertical axis; Furnaces with rotating floor
    • 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
    • F27B9/38—Arrangements of devices for charging
    • 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
    • F27B9/39—Arrangements of devices for discharging
    • 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
    • C21D1/62—Quenching devices
    • C21D1/63—Quenching devices for bath quenching
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • 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
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • 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
    • F27B9/40—Arrangements of controlling or monitoring devices
    • 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
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1858—Doors
    • F27D2001/1891—Doors for separating two chambers in the furnace
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces

Abstract

Openings in the outer wall are for loading and unloading. The second opening is spaced away from the first opening, is adjacent to the heating zone, and can be closed. The rotating hearth can be turned in either direction. The sector between first and second openings extends over 90[deg]. Three treatment zones are connected to the heating zone. Their temperatures and atmosphere can be controlled individually. A gas-tight air lock is on the second opening. Immediately next to the opening are doors, thus forming a loading and unloading zone.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (5)

1. Drehherdofen zur Wärmebehandlung von Werkstücken (2), mit einem taktweise drehbeweglichen Drehherd (3), mit einer Außen- und einer Innenwand (4, 5), die einen Ofenraum begrenzen, der mittels vertikal beweglicher Türen (6a-6e) in einer Aufheizzone (7) und mindestens eine Behandlungszone (8 bis 10) unterteilt ist, mit einer verschließbare Be- und Entladeöffnung (12), die in der Außenwand (4), be­ nachbart zur Aufheizzone (7) angeordnet ist, dadurch gekennzeichnet, dass eine zweite verschließbare Be- und Entladeöffnung (16) in der Außenwand (4), benachbart zur Aufheizzone (7) und beabstandet zur ersten Be- und Entlade­ öffnung (11) angeordnet ist und dass der Drehherd (3) in beide Richtungen dreh­ bar ist.1. rotary hearth furnace for the heat treatment of workpieces (2), with a cyclically rotatable rotary hearth (3), with an outer and an inner wall (4, 5), which delimit an oven space by means of vertically movable doors (6a-6e) in one Heating zone (7) and at least one treatment zone (8 to 10) is subdivided, with a closable loading and unloading opening (12) which is arranged in the outer wall (4), adjacent to the heating zone (7), characterized in that a second closable loading and unloading opening (16) in the outer wall (4), adjacent to the heating zone (7) and spaced from the first loading and unloading opening (11) and that the rotary hearth (3) is rotatable in both directions. 2. Drehherdofen nach Anspruch 1, dadurch gekennzeichnet, dass sich zwischen der ersten und der zweiten Be- und Entladeöffnung (11, 16) die Aufheizzone (7) über einen Bereich von im wesent­ lichen 90° erstreckt.2. rotary hearth furnace according to claim 1, characterized in that between the first and the second loading and Discharge opening (11, 16) the heating zone (7) over a range of essentially Lichen extends 90 °. 3. Drehherdofen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass drei Behandlungszonen (8 bis 10) vorgesehen sind, wobei die Behandlungszonen (8, 10), die sich an die Aufheizzone (7) anschließen, hinsichtlich Behandlungstemperatur und Behandlungsatmosphäre unterschiedlich einstellbar sind.3. rotary hearth furnace according to claim 1 or 2, characterized in that three treatment zones (8 to 10) are provided, the treatment zones (8, 10) which adjoin the heating zone (7), different in terms of treatment temperature and treatment atmosphere are adjustable. 4. Drehherdofen nach einen der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sich an die zweite Be- und Entladeöffnung (16) eine gasdichte Schleuse (17) anschließt.4. rotary hearth furnace according to one of claims 1 to 3, characterized in that the second loading and unloading opening (16) a gas-tight lock (17) connects. 5. Drehherdofen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass unmittelbar neben der Be- und Entladeöffnung (11) beidseitig Türen (6a-6e) vorgesehen sind, so dass eine Be- und Entladezone (12) gebildet wird.5. rotary hearth furnace according to one of claims 1 to 3, characterized in that immediately next to the loading and unloading opening (11) Doors (6a-6e) are provided on both sides, so that a loading and unloading zone (12) is formed.
DE20220240U 2002-03-27 2002-03-27 Rotating hearth furnace, for heat treatment of workpieces, has two openings for loading and unloading, separated by heating zone Expired - Lifetime DE20220240U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20220240U DE20220240U1 (en) 2002-03-27 2002-03-27 Rotating hearth furnace, for heat treatment of workpieces, has two openings for loading and unloading, separated by heating zone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20220240U DE20220240U1 (en) 2002-03-27 2002-03-27 Rotating hearth furnace, for heat treatment of workpieces, has two openings for loading and unloading, separated by heating zone
DE10213991 2002-03-27

Publications (1)

Publication Number Publication Date
DE20220240U1 true DE20220240U1 (en) 2003-08-28

Family

ID=27806098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20220240U Expired - Lifetime DE20220240U1 (en) 2002-03-27 2002-03-27 Rotating hearth furnace, for heat treatment of workpieces, has two openings for loading and unloading, separated by heating zone

Country Status (1)

Country Link
DE (1) DE20220240U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033042B3 (en) * 2005-07-15 2006-07-27 Audi Ag Preheating of e.g. sheet for hot-pressing in automobile industry, employs heat released by cooling- and deformation processes, to preheat workpieces before forming
CN109737740A (en) * 2018-12-26 2019-05-10 广东科达洁能股份有限公司 A kind of transition cabinet prevented into kiln powder spreading

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033042B3 (en) * 2005-07-15 2006-07-27 Audi Ag Preheating of e.g. sheet for hot-pressing in automobile industry, employs heat released by cooling- and deformation processes, to preheat workpieces before forming
CN109737740A (en) * 2018-12-26 2019-05-10 广东科达洁能股份有限公司 A kind of transition cabinet prevented into kiln powder spreading

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20031002

R150 Term of protection extended to 6 years

Effective date: 20050415

R151 Term of protection extended to 8 years

Effective date: 20080421

R152 Term of protection extended to 10 years

Effective date: 20100412

R071 Expiry of right
R071 Expiry of right