DE580572C - Rotary kiln with heat transfer bodies - Google Patents
Rotary kiln with heat transfer bodiesInfo
- Publication number
- DE580572C DE580572C DEF73074D DEF0073074D DE580572C DE 580572 C DE580572 C DE 580572C DE F73074 D DEF73074 D DE F73074D DE F0073074 D DEF0073074 D DE F0073074D DE 580572 C DE580572 C DE 580572C
- Authority
- DE
- Germany
- Prior art keywords
- heat transfer
- furnace
- rotary kiln
- heat
- transfer bodies
- 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
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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
- F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
- F27B7/162—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall the projections consisting of separate lifting elements, e.g. lifting shovels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
Drehrohrofen mit Wärmeübertragungskörpern Der Drehrohrofenbetrieb leidet noch immer an dem Mangel einer unbefriedigenden. W,ärmeübertragung von den Gasen auf das Brenngut. Die übliche Verwendung von W.är meübertragungskörpern im Ofen ergibt nur unzulängliche Ergebnisse. Die Ursache davon liegt darin. dar nur aus feuerfestem Stoff bestehende @Värmeübertragungskörper in den heißen Ofenabschnitten, besonders in der Ca1-cüiieruiigSzone, mit Erfolg eingebaut werden können, während die Anwendung von metallischen Einbauten, sei es in Form von Ketten oder beweglichen Ringen o. dgl., sei es in Form einzelner Zellen, auf die kühleren Ofenzonen beschränkt geblieben ist. Günstige Ergebnisse für die Wärmeübertragung sind aber nur durch metallische Einbauten zu erreichen, da nur diese die Fähigkeit haben, Wärme aus den Gasen rasch aufzunehmen und auch wieder rasch an das Brenngut, bei Berührung mit dem letzteren, abzugeben und da nur diese genügend feingliedrig ausgebildet «erden können, um auf kleinem Raum eine große W.ärmeübertragungsfiäche zu erhalten.Rotary kiln with heat transfer bodies The rotary kiln operation still suffers from the lack of an unsatisfactory one. W, transfer of arms from the Gases on the item to be fired. The usual use of W.är metransmission bodies in the Oven gives poor results. The cause of this lies in this. just represent heat transfer bodies made of refractory material in the hot furnace sections, especially in the calcium zone, can be incorporated with success while the use of metallic fixtures, be it in the form of chains or movable ones Rings or the like, be it in the form of individual cells, restricted to the cooler furnace zones stayed. However, favorable results for heat transfer are only possible through metallic fixtures, as only these have the ability to remove heat to absorb the gases quickly and also quickly to the material to be fired again when touched with the latter, and since only these are sufficiently delicate «Can be grounded in order to obtain a large heat transfer surface in a small space.
Vorliegende Erfindung bezweckt für die Verwendung von metallischen Wärmeübertragungskörpern in Drehrohröfen einen breiteren Boden zu schaffen und erreicht den Zweck dadurch. daß die metallischen Einbauten, und zwar in Form von möglichst hitzebeständigem Metall. wie z. B. hitzebeständigem Stahl, in heißen. vom Flammenstrom durchzogenen Ofenzonen so eingebaut werden, daß sie sich in einer Erweiterung des Ofenrohres, wie an sich bekannt. befinden, aber gegen die Mitte des Ofens nur so weit von der Ofenwandung Hervorragen, daß sie nicht in den durch den anschließenden engeren Rohrabschnitt eingeschnürten, dem Ofenauslaßende zustrebenden Flammenstrom hineinragen.The present invention aims for the use of metallic Heat transfer bodies in rotary kilns to create a wider base and achieved the purpose thereby. that the metallic internals, in the form of as possible heat-resistant metal. such as B. heat-resistant steel, in hot. from the stream of flames continuous furnace zones are installed in such a way that they are in an extension of the Stovepipe, as is known per se. are located, but towards the middle of the furnace just like that They protrude far from the furnace wall so that they are not in the through the adjoining the narrower pipe section constricted, the furnace outlet approaching the flame flow protrude.
Es hat sich gezeigt, daß bei solcher Anordnung der metallischen Einbauten diese zwar durch Strahlung von dem reichlich '\Värme aufnehmen, ohne je-(h)c11 eine Schnelle Zerstörung durch die Ein-Wirkung der Flamme zu erfahren. Einbauten, die in derselben Weise angeordnet sind, sind schon bekannt. Diese bestanden jedoch aus keramischem Stoff, so daß man hier den Vorteil ihrer geschützten Lage nicht ausnutzen konnte.It has been shown that with such an arrangement of the metallic internals to be sure to absorb this through radiation from the abundant heat, without any one Experiencing rapid destruction by the on-effect of the flame. Internals that arranged in the same way are already known. However, these passed ceramic material, so that you do not take advantage of their protected location here could.
Die Erfindung ist an einem Ausführungsbeispiel auf der Zeichnung in einem mittleren Längsschnitt durch einen erweiterten Ofenabschnitt und einem Querschnitt durch diesen veranschaulicht.The invention is illustrated in one embodiment in the drawing a central longitudinal section through an enlarged furnace section and a cross section illustrated by this.
Gemäß der Darstellung der Zeichnung besitzen die hitzebeständigen Einbauten 8 des erweiterten Ofenabschnittes die Form von Hohlschaufeln, wie solche in ,ähnlicher Ausführung schon bekamst sind. .Die Schaufeln Weisen eine Fläche g auf, die mit Bezug auf die Bewegungsrichtung des Ofens geneigt ist. Diese Anordnung führt zu einer energischen Umrührung des Brenngutes. Die Wärmeübertragungskörper sind durch Bolzen I I gehalten, Welche nach außen durch die Ofenwand hindurchgeführt sind, so daß sie von außen her an der Wandung befestigt Werden können.As shown in the drawing, the heat-resistant Internals 8 of the extended furnace section take the form of hollow blades, such as those have already been given a similar design. .The blades have a surface g inclined with respect to the direction of movement of the furnace. This arrangement leads to vigorous stirring of the material to be fired. The heat transfer body are held by bolts I I, which passed through the furnace wall to the outside are so that they can be attached to the wall from the outside.
Um den Ersatz der Körper zu erleichtern, sind sie auf besonderen Tragschuhen Ja befestigt, welche in Aussparungen des feuerfesten Ofenfutters eingesetzt sind.In order to facilitate the replacement of the body, they are on special wearing shoes Yes attached, which are inserted into recesses in the refractory furnace lining.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF73074D DE580572C (en) | Rotary kiln with heat transfer bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF73074D DE580572C (en) | Rotary kiln with heat transfer bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
DE580572C true DE580572C (en) | 1933-07-13 |
Family
ID=7111946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF73074D Expired DE580572C (en) | Rotary kiln with heat transfer bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE580572C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE824177C (en) * | 1949-10-28 | 1951-12-10 | Arno Andreas | Rotary kiln for burning cement or the like. |
DE869468C (en) * | 1949-09-28 | 1953-03-05 | Karl Albert | Rotary drum for heat and cold treatment of pourable goods |
FR2217652A1 (en) * | 1973-02-14 | 1974-09-06 | Kloeckner Humboldt Deutz Ag | |
FR2632716A1 (en) * | 1988-06-14 | 1989-12-15 | Cavallera Claude | Furnace for calcining various products by a rotary route |
EP0886118A1 (en) * | 1997-06-18 | 1998-12-23 | Manfred Stöby | Rotary drum furnace in particular for remelting aluminium |
US8262983B2 (en) | 2010-08-05 | 2012-09-11 | Altek, L.L.C. | Tilting rotary furnace system and methods of aluminum recovery |
-
0
- DE DEF73074D patent/DE580572C/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE869468C (en) * | 1949-09-28 | 1953-03-05 | Karl Albert | Rotary drum for heat and cold treatment of pourable goods |
DE824177C (en) * | 1949-10-28 | 1951-12-10 | Arno Andreas | Rotary kiln for burning cement or the like. |
FR2217652A1 (en) * | 1973-02-14 | 1974-09-06 | Kloeckner Humboldt Deutz Ag | |
DE2307108A1 (en) * | 1973-02-14 | 1975-02-06 | Kloeckner Humboldt Deutz Ag | COOLING PIPE, IN PARTICULAR FOR SATELLITE COOLERS |
FR2632716A1 (en) * | 1988-06-14 | 1989-12-15 | Cavallera Claude | Furnace for calcining various products by a rotary route |
EP0886118A1 (en) * | 1997-06-18 | 1998-12-23 | Manfred Stöby | Rotary drum furnace in particular for remelting aluminium |
US8262983B2 (en) | 2010-08-05 | 2012-09-11 | Altek, L.L.C. | Tilting rotary furnace system and methods of aluminum recovery |
US8685138B2 (en) | 2010-08-05 | 2014-04-01 | Altek L.L.C. | Tilting rotary furnace system and methods of aluminum recovery |
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