EP2085728A1 - Four rotatif - Google Patents

Four rotatif Download PDF

Info

Publication number: EP2085728A1
Authority: EP; European Patent Office
Prior art keywords: heating chamber; objects; rotary kiln; cover; rotationally driven
Prior art date: 2008-01-30
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

EP09000693A

Other languages

German (de)

English (en)

Other versions

EP2085728B1 (fr

Inventor

Erland LUNDSTRÖM

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.)

Schuler SMG GmbH and Co KG

Original Assignee

Schuler SMG 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.)

2008-01-30

Filing date

2009-01-20

Publication date

2009-08-05

2009-01-20 Application filed by Schuler SMG GmbH and Co KG filed Critical Schuler SMG GmbH and Co KG

2009-08-05 Publication of EP2085728A1 publication Critical patent/EP2085728A1/fr

2011-12-07 Application granted granted Critical

2011-12-07 Publication of EP2085728B1 publication Critical patent/EP2085728B1/fr

Status Active legal-status Critical Current

2029-01-20 Anticipated expiration legal-status Critical

Images

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 specially adapted for 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 specially adapted for furnaces of these types
- F27B9/39—Arrangements of devices for discharging

Definitions

the invention relates to a rotary kiln with a heating chamber, in which a feed opening is formed, can be introduced by the objects to be heated in the heating chamber, and with a rotationally driven, circulating transport device, by means of which the objects are transported through the heating chamber to a removal opening to the objects are removable from the heating chamber, wherein the heating chamber has one or more side walls, a floor and a ceiling.
Such a rotary kiln which is also referred to as rotary hearth furnace, serves to heat various objects, such as metal circuit boards, in a continuous process to a predetermined temperature of, for example, about 900 ° C to 1100 ° C.
the rotary kiln has a heating chamber, which is heated in the usual way by direct or indirect heating to a predetermined temperature and kept at the temperature by means of a conventional control.
a circulating transport device is arranged, for example in the form of an endless conveyor, on which the objects can be placed.
a lateral feed opening is provided, through which the objects are introduced into the interior of the heating chamber and deposited on the transport device.
the transport device guides the objects through the heating chamber, wherein after removal of approximately 310 ° to 340 ° of the circumference of the heating chamber or the transport path of the transport device in the side wall, a removal opening is formed through which the objects are removed from the transport device and out of the Heating chamber can be removed. Subsequently, the objects are sent for further processing in other stations or machines.
a particular disadvantage of this known rotary kiln on the one hand that through the side feed opening and the side removal opening, a relatively large heat loss occurs, whereby the energy consumption is very high, to keep the interior of the heating chamber at the predetermined, relatively high temperature.
the invention has for its object to provide a rotary kiln of the type mentioned, which has a compact structure and are avoided in the excessive heat loss and, where appropriate, protective gas losses.
the objects are preferably introduced by means of a first Gelenkarmroboters from below through the feed opening in the heating chamber and placed on the lid formed on the holder. In their seated on the holders Position pass through the objects as a result of the rotation of the lid, the heating chamber over a circumferential range of about 310 ° to 340 ° until they reach the removal opening.
the aforementioned articulated-arm robot or another second articulated-arm robot engages the discharge opening from below through the bottom of the heating chamber and takes the objects from the holders and out of the heating chamber through the removal opening.
the heat loss and optionally also the protective gas loss is relatively low, so that the operating costs of the rotary kiln are substantially reduced.
the charging opening and / or the removal opening are formed in the bottom of the heating chamber as slots, wherein the slots preferably extend substantially perpendicular to the direction of movement of the objects in the heating chamber. Due to this relatively small size of the feed opening and the removal opening, the heat loss and possibly also the protective gas loss can continue to be kept low.
the rotary kiln according to the invention has a supporting central support, which is surrounded by the annular heating chamber. After the objects are introduced into the heating chamber through the feed opening, they pass through the annular heating chamber about the center support through a circumferential angle from 310 ° to 340 °, until they reach the discharge opening.
the charging opening and the removal opening are thus arranged offset in the circumferential direction of the heating chamber by an angle in the range of 20 ° to 50 °.
FIG. 1 shows a rotary kiln 10, which has a central support 11, which carries at its upper end a transversely to the longitudinal extent of the central support 11 cantilevered ceiling plate 12.
the heating chamber 19 is supported on its underside via supports 24 on the ground, so that below the heating chamber 19, a free space 25 is formed.
This space 25 is used in the rotary kiln 10 according to the invention for introducing the objects P into the heating chamber 19 and to be taken from this.
two slots 20 and 21 each extending radially to the central support 11 are provided which are offset by an angle of approximately 30 ° to 40 ° in the circumferential direction and thus offset in the transport direction of the heating chamber 19 it out Fig. 2 is apparent.
the interior of the heating chamber 19 is heated in a conventional manner and maintained at a desired, predetermined temperature, which is not shown in detail in the figures.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Chemical & Material Sciences (AREA)
General Engineering & Computer Science (AREA)
Crystallography & Structural Chemistry (AREA)
Thermal Sciences (AREA)
Physics & Mathematics (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Muffle Furnaces And Rotary Kilns (AREA)
Tunnel Furnaces (AREA)
Heat Treatments In General, Especially Conveying And Cooling (AREA)

EP09000693A 2008-01-30 2009-01-20 Four rotatif Active EP2085728B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102008006682A DE102008006682A1 (de)	2008-01-30	2008-01-30	Drehofen

Publications (2)

Publication Number	Publication Date
EP2085728A1 true EP2085728A1 (fr)	2009-08-05
EP2085728B1 EP2085728B1 (fr)	2011-12-07

Family

ID=40550224

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP09000693A Active EP2085728B1 (fr)	2008-01-30	2009-01-20	Four rotatif

Country Status (4)

Country	Link
EP (1)	EP2085728B1 (fr)
AT (1)	ATE536523T1 (fr)
DE (1)	DE102008006682A1 (fr)
ES (1)	ES2378923T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014063807A1 (fr)	2012-10-23	2014-05-01	Tata Steel Uk Limited	Agencement et procédé pour le chauffage et le travail d'un matériau en feuille

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102014004398A1 (de)	2014-03-18	2015-09-24	Schuler Pressen Gmbh	Drehofen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2020397C1 (ru) *	1991-06-24	1994-09-30	Зубкова Инна Евгеньевна	Кольцевая печь
JP2003212577A (ja)	2002-01-22	2003-07-30	Showa Mfg Co Ltd	ガラス基板用熱処理装置
WO2004009855A1 (fr) *	2002-07-18	2004-01-29	Consolidated Engineering Company, Inc.	Procede et systeme servant a traiter des pieces de fonderie
WO2005050112A2 (fr) *	2003-11-19	2005-06-02	Loi Thermprocess Gmbh	Installation et procede permettant de traiter thermiquement des pieces a usiner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1919650A (en) *	1931-04-21	1933-07-25	George J Hagan	Rotary furnace
CH200174A (de) *	1936-12-29	1938-09-30	Bbc Brown Boveri & Cie	Ringkanalofen.
AT209788B (de) *	1957-11-19	1960-06-25	Dolomitwerke Ges Mit Beschraen	Ringofen mit von unten beschickbarer und nach unten entleerbarer Ofenkammer
JPS53127312A (en) *	1976-06-17	1978-11-07	Daido Steel Co Ltd	Continuous atomosphere furnace and method of supplying atomosphere gas therein
DE3248234C2 (de) *	1982-12-28	1986-06-12	Keramikindustrieanlagen W.Strohmenger GmbH & Co KG, 8524 Neunkirchen	Tunnelofen

2008
- 2008-01-30 DE DE102008006682A patent/DE102008006682A1/de not_active Withdrawn
2009
- 2009-01-20 ES ES09000693T patent/ES2378923T3/es active Active
- 2009-01-20 EP EP09000693A patent/EP2085728B1/fr active Active
- 2009-01-20 AT AT09000693T patent/ATE536523T1/de active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2020397C1 (ru) *	1991-06-24	1994-09-30	Зубкова Инна Евгеньевна	Кольцевая печь
JP2003212577A (ja)	2002-01-22	2003-07-30	Showa Mfg Co Ltd	ガラス基板用熱処理装置
WO2004009855A1 (fr) *	2002-07-18	2004-01-29	Consolidated Engineering Company, Inc.	Procede et systeme servant a traiter des pieces de fonderie
WO2005050112A2 (fr) *	2003-11-19	2005-06-02	Loi Thermprocess Gmbh	Installation et procede permettant de traiter thermiquement des pieces a usiner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199523, Derwent World Patents Index; AN 1995-177011, XP002524785 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014063807A1 (fr)	2012-10-23	2014-05-01	Tata Steel Uk Limited	Agencement et procédé pour le chauffage et le travail d'un matériau en feuille

Also Published As

Publication number	Publication date
DE102008006682A1 (de)	2009-08-13
ES2378923T3 (es)	2012-04-19
ATE536523T1 (de)	2011-12-15
EP2085728B1 (fr)	2011-12-07

Publication	Publication Date	Title
DE60220629T2 (de)	2008-02-14	Vakuumwärmebehandlungsanlage
EP1948845B1 (fr)	2010-08-18	Reacteur de depot chimique en phase vapeur a support de substrat monte coulissant
DE3228432A1 (de)	1983-02-17	Drehofen und verfahren zur direkten reduktion unter verwendung eines solchen drehofens
EP0128177B1 (fr)	1987-03-04	Four de traitement thermique avec chemin de transport en forme de couronne pour les pieces a usiner
DE3427716C1 (de)	1985-11-14	Drehherdofen in Ringbauart zur Waermebehandlung von Werkstuecken
EP2085728B1 (fr)	2011-12-07	Four rotatif
DE2105215B2 (de)	1974-12-05	Tellertrockner zum Trocknen von zur Staubbildung neigenden Materialien
DE2221635A1 (de)	1973-06-14	Pflugschar fuer hochtemperatur-anwendung
DE3900637A1 (de)	1989-12-21	Abgedichteter drehbarer herdofen
DE2500923A1 (de)	1975-07-17	Beschickungsvorrichtung fuer hochoefen
DE102008010887A1 (de)	2009-08-27	Rotationsformanlage
DE3231225A1 (de)	1984-03-01	Ofen zur waermebehandlung und durchfuehrung von waermeprozessen fuer werkstuecke aus eisenwerkstoffen und nichteisenmetallen
DE60012529T2 (de)	2005-08-04	Wärmebehandlungsanlage für Ladungen von metallischen Werkstücken
DE202022106225U1 (de)	2022-11-16	Vorrichtung zur kontinuierlichen Malzproduktion
DE10258728B3 (de)	2004-03-18	Ofen zur Wärmebehandlung von Teilen
WO2000022178A1 (fr)	2000-04-20	Four a cloche
DE2317429B2 (de)	1976-09-09	Vorrichtung fuer die diskontinuierliche behandlung von festen materialien, insbesondere fuer deren trocknung
DE4223184C1 (de)	1993-10-28	Verfahren und Vorrichtung zum Einlegen von Chargiermaterial in Glasschmelzöfen
DE60122976T2 (de)	2007-03-08	Entladeschnecke für einen beweglichen Herd
EP3189888A1 (fr)	2017-07-12	Dispositif de mélange
DE102005022242B4 (de)	2009-06-04	Anlage zur Entbinderung/Restentbinderung und Sinterung
DE2847458A1 (de)	1980-05-22	Vorrichtung zur herstellung von malz
DE2327598A1 (de)	1973-12-20	Vakuum-entgasungsvorrichtung
DE2162167C3 (de)	1980-04-24	Einrichtung zum Keimen und Darren von Malz
DE102022129254B4 (de)	2025-05-28	Verfahren und Vorrichtung zur kontinuierlichen Malzproduktion

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EP2085728A1 - Four rotatif - Google Patents

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