DE400236C - Rotary kiln for burning cement u. like - Google Patents
Rotary kiln for burning cement u. likeInfo
- Publication number
- DE400236C DE400236C DEW64457D DEW0064457D DE400236C DE 400236 C DE400236 C DE 400236C DE W64457 D DEW64457 D DE W64457D DE W0064457 D DEW0064457 D DE W0064457D DE 400236 C DE400236 C DE 400236C
- Authority
- DE
- Germany
- Prior art keywords
- rotary kiln
- burning cement
- cement
- furnace
- projections
- 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)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
Drehrohrofen zum Brennen von Zement u. dgl. Die Erfindung bezieht sich auf eine Vorrichtung bei Drehrohröfen zum Brennen von Zement u. dgl., welche an den Ofenwandungen in der Vorwärmungszone messerartige Vorsprünge haben, die während der Drehung mitlaufende -Schneiden bilden. Das Kennzeichnende dieser Vorrichtung liegt darin, daB diese Schneiden oder Vorsprünge, deren keilförmige Kante in bekannter Weise in der Drehrichtung des Ofens nach vorn gelegen ist, als prismatische Stege ausgebildet sind, die am Rücken eine längs des Stegs verlaufende Rille besitzen. Hierdurch wird erreicht, daß während der Drehung des Ofens ein freier Raum bzw. ein Durchgangskanal hinter den Vorsprüngen entsteht, welcher den in der Zementmasse gebildeten Gasen gestattet, aus der Zementmasse längs der Hinterseite der ein wenig aus der Zementmasse hervorragenden Vorsprünge zu entweichen. Diese Vorsprünge können aus beliebigem feuerfesten Stoff, z. E. Eisen, Schamotte usw., bestehen.Rotary kiln for burning cement and the like on a device in rotary kilns for burning cement and the like have knife-like projections on the furnace walls in the preheating zone, which during Form cutting edges that follow the rotation. The distinguishing feature of this device lies in the fact that these cutting edges or projections whose wedge-shaped edge is known Way is located forward in the direction of rotation of the furnace, as prismatic bars are formed which have a groove running along the web on the back. Through this it is achieved that a free space or a passage channel during the rotation of the furnace behind the projections arises, which the gases formed in the cement mass Allowed from the cement mass along the rear side of the a little from the cement mass excellent protrusions to escape. These protrusions can be any refractory material, e.g. E. iron, chamotte, etc., exist.
Aus der Zeichnung ist eine Vorrichtung nach der Erfindung beispielsmäßig dargestellt. Abb. z zeigt einen Teil des Ofens in Längsschnitt und Abb. 2 denselben in Querschnitt. Abb. 3 bis 5 zeigen Einzelheiten.A device according to the invention is shown by way of example in the drawing shown. Fig. Z shows part of the furnace in longitudinal section and Fig. 2 the same in cross section. Figures 3 through 5 show details.
Die Vorsprünge oder Stege sind mit z bezeichnet; deren schneidende Vorderkante ist mit 2 und deren rillenförmig ausgebildete Hinterseite mit 3 bezeichnet. Statt dessen kann die Hinterseite auch mehr oder weniger flach ausgehöhlt sein, oder die Rille 3 kann so tief sein, daß der Steg im Querschnitt winkelförmig wird. Der nach dem Ende zu sich erweiternde Fuß .4 des Steges wird zwischen zwei benachbarten Wandbekleidungssteinen 5 (Abb. 5) der Ofenwand eingefügt und sicher festgehalten; die betreffenden Ofenwandteile haben in den benachbarten Kanten dem Fuß :4 entsprechend gestaltete Aussparungen. Abb.5 zeigt, wie die Stege z in den Ofenwandungen in Verhältnis zueinander angebracht werden können.The projections or ridges are denoted by z; their cutting The front edge is denoted by 2 and its groove-shaped rear side is denoted by 3. Instead, the back can be hollowed out more or less flat, or the groove 3 can be so deep that the web is angular in cross section. The foot .4 of the web, which widens towards the end, is between two adjacent Wall cladding stones 5 (Fig. 5) inserted into the furnace wall and held securely; the furnace wall parts in question have the foot in the adjacent edges: 4 accordingly designed recesses. Fig.5 shows how the webs z in the furnace walls in relation can be attached to each other.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE400236X | 1922-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE400236C true DE400236C (en) | 1924-08-14 |
Family
ID=20309419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW64457D Expired DE400236C (en) | 1922-09-08 | 1923-08-21 | Rotary kiln for burning cement u. like |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE400236C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1169360B (en) * | 1958-10-11 | 1964-04-30 | Steinwerke Iafeuerfestiakarl A | Device for circulating bulk material in rotary tube ovens |
DE1212845B (en) * | 1960-11-22 | 1966-03-17 | American Cement Corp | Rotary kiln |
EP0674145A1 (en) * | 1994-03-23 | 1995-09-27 | Tioxide Group Services Limited | Rotary kiln wall equipped with a plurality of protrusions |
EP4053483A1 (en) * | 2021-03-05 | 2022-09-07 | S.A. Lhoist Recherche et Développement | Rotary kiln and method for firing carbonaceous material, in particular limestone or dolomite |
EP4053484A1 (en) * | 2021-03-05 | 2022-09-07 | S.A. Lhoist Recherche et Développement | Rotary kiln and method for firing carbonaceous material, in particular limestone or dolomite |
-
1923
- 1923-08-21 DE DEW64457D patent/DE400236C/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1169360B (en) * | 1958-10-11 | 1964-04-30 | Steinwerke Iafeuerfestiakarl A | Device for circulating bulk material in rotary tube ovens |
DE1212845B (en) * | 1960-11-22 | 1966-03-17 | American Cement Corp | Rotary kiln |
EP0674145A1 (en) * | 1994-03-23 | 1995-09-27 | Tioxide Group Services Limited | Rotary kiln wall equipped with a plurality of protrusions |
EP4053483A1 (en) * | 2021-03-05 | 2022-09-07 | S.A. Lhoist Recherche et Développement | Rotary kiln and method for firing carbonaceous material, in particular limestone or dolomite |
EP4053484A1 (en) * | 2021-03-05 | 2022-09-07 | S.A. Lhoist Recherche et Développement | Rotary kiln and method for firing carbonaceous material, in particular limestone or dolomite |
WO2022184934A1 (en) * | 2021-03-05 | 2022-09-09 | S.A. Lhoist Recherche Et Développement | Rotary kiln and method for burning carbonate-containing material, in particular limestone or dolomite |
WO2022184935A1 (en) * | 2021-03-05 | 2022-09-09 | S.A. Lhoist Recherche Et Développement | Rotary kiln and method for calcining carbonate-containing material, in particular limestone or dolomite |
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