DE446029C - Process for burning cement, lime and the like like - Google Patents
Process for burning cement, lime and the like likeInfo
- Publication number
- DE446029C DE446029C DEA43630D DEA0043630D DE446029C DE 446029 C DE446029 C DE 446029C DE A43630 D DEA43630 D DE A43630D DE A0043630 D DEA0043630 D DE A0043630D DE 446029 C DE446029 C DE 446029C
- Authority
- DE
- Germany
- Prior art keywords
- lime
- shaft furnace
- shaft
- burning cement
- furnace
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
Verfahren zum Brennen von Zement, Kalk u. dgl. Die Erfindung betrifft eine weitere Ausbildung und Verbesserung des Verfahrens zum Brennen von Zement, Kalk u. dgl. in einem Schachtofen nach dem Patent q:45 014.Methods for burning cement, lime and the like further training and improvement of the cement burning process, Lime and the like in a shaft furnace according to patent q: 45 014.
Das Wesen der Erfindung nach dem Hauptpatent besteht darin, daß das Brenngut in fein gemahlenem Zustande im oberen Teile des Ofens durch Düsen tangential eingeblasen und über den ganzen Ofenquerschnitt verteilt in die im Ofen erzeugten Flammen eingestreut und während des Herabsinkens fertiggebrannt wird.The essence of the invention according to the main patent is that the Finely ground material to be fired in the upper part of the furnace through nozzles tangentially blown in and distributed over the entire cross-section of the furnace into those produced in the furnace Flames are scattered and burned to completion as it descends.
Nach dem vorliegenden Verfahren soll in dem eigentlichen Schachtofen nur das Vortrocknen und Calcinieren des Brenngutes durch den Flammenstrom erfolgen, während das eigentliche Sintern in einer besonderen erweiterten Kammer vorgenommen wird. Zweckmäßig wird diese Kammer als kurzer nachgeschalteter Drehofen ausgebildet. Das Rohmehl wird dabei wie in dem Hauptpatent beschrieben, an der Gicht des Ofens tangential eingeblasen, so daß es spiralförmig kreisend in dem Ofen herabsinkt und den Feuergasen entgegenfällt.According to the present method, in the actual shaft furnace only the pre-drying and calcining of the material to be fired are carried out by the flame flow, while the actual sintering is done in a special enlarged chamber will. This chamber is expediently designed as a short rotary kiln connected downstream. The raw meal is, as described in the main patent, on the top of the oven blown in tangentially so that it descends in a spiral circling in the furnace and falls towards the fire gases.
Auf diese Weise werden zunächst alle Partikelchen der Rohmischung innig von dem Flammenstrom berührt und vorgetrocknet bzw. vorgebrannt. Es ist bekannt, das dem Drehofen zuzuführende Gut in einem Schacht in fein verteiltem Zustande vorzutrocknen. Dabei fällt das Gut aber gerade nach unten. Gegenüber diesemVerfahren erzielt man nach derErfindung eine wesentliche Verminderung der Schachthöhe.In this way, all the particles of the raw mixture are initially removed intimately touched by the stream of flames and pre-dried or pre-burned. It is known, to predry the material to be fed to the rotary kiln in a finely divided state in a shaft. The good falls straight down. Compared to this method, one achieves according to the invention, a significant reduction in the shaft height.
In der Zeichnung sind zwei zur Ausführung des Verfahrens dienende Einrichtungen im Längsschnitt dargestellt.In the drawing are two used to carry out the method Facilities shown in longitudinal section.
In den Schachtofen a der Abb. i wird das Rohmehl mit oder ohne Brennstoff an der Gichtöffnung durch einen Ventilator b tangential in den Schacht eingeblasen. Es sinkt spiral-.förmig kreisend in den Schacht herab und wird von den aufsteigenden Heizgasen vorgetrocknet und gebrannt. Der Schachtofen ist unten mit einem erweiterten Teil c versehen, in dem die Sinterung des Gutes erfolgt. Durch mehrere Düsen d, welche in den erweiterten Teil c des Schachtofens a emmianden, wird der Brennstoff zugeführt,. die aufsteigenden Heizgase trocknen dabei das spiralförmig herabsinkende Gut vor. Das fertiggebrannte Gut wird durch die Abzugsöffnung c entfernt.In the shaft furnace a in Fig. I, the raw meal with or without fuel is blown tangentially into the shaft at the top opening by a fan b. It sinks in a spiral-shaped circling down into the shaft and is pre-dried and burned by the rising heating gases. The shaft furnace is provided at the bottom with an enlarged part c, in which the sintering of the goods takes place. The fuel is supplied through several nozzles d, which emmianden into the enlarged part c of the shaft furnace a. the rising heating gases pre-dry the material that is falling in a spiral. The finished fired material is removed through the outlet opening c.
In der Ausführungsform nach Abb. 2 schließt sich an eine untere seitliche Öffnung e des _Schachtofens a ein kurzer Drehofen f an, dem der Brennstoff durch eine Düse g am Kopfende der Drehtrommel zugeführt wird, in welcher das im Schacht a vorbehandelte Brenngut gesintert wird. In den unteren Teil des Schachtofens mündet die Brennstoffzuleitung h. An der Gichtöffnung wird das Rohmehl durch denVentilator tangential eingeblasen.In the embodiment according to Fig. 2, a lower lateral opening e of the shaft furnace a is followed by a short rotary kiln f , to which the fuel is fed through a nozzle g at the head end of the rotary drum, in which the material that has been pretreated in the shaft a is sintered. The fuel feed line h opens into the lower part of the shaft furnace. At the top opening, the raw meal is blown in tangentially by the fan.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA43630D DE446029C (en) | Process for burning cement, lime and the like like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA43630D DE446029C (en) | Process for burning cement, lime and the like like |
Publications (1)
Publication Number | Publication Date |
---|---|
DE446029C true DE446029C (en) | 1927-06-21 |
Family
ID=6933754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA43630D Expired DE446029C (en) | Process for burning cement, lime and the like like |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE446029C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE910633C (en) * | 1935-03-11 | 1954-05-03 | Eugene Camille Saint Jacques | Oven for agglomerating or clinkering powdery materials |
DE1019604B (en) * | 1954-11-26 | 1957-11-14 | Berz Wolfgang Dipl Ing | Shaft-shaped preheating device for fine-grained or dust-shaped raw material, especially cement raw meal |
DE1038536B (en) * | 1953-11-09 | 1958-09-11 | Smidth & Co As F L | Device for heat exchange between gases and solid particles suspended therein, in particular in connection with a rotary kiln |
DE1042452B (en) * | 1953-05-02 | 1958-10-30 | Rheinische Kalksteinwerke | Process for the production of burned or sintered dolomite |
DE1178001B (en) * | 1956-12-08 | 1964-09-10 | Polysius Gmbh | Method and device for the exchange of heat between dust-like material and gas in the Sch, in particular for the pre-treatment of cement pipe material with exhaust gases from a downstream prefabricated kiln |
-
0
- DE DEA43630D patent/DE446029C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE910633C (en) * | 1935-03-11 | 1954-05-03 | Eugene Camille Saint Jacques | Oven for agglomerating or clinkering powdery materials |
DE1042452B (en) * | 1953-05-02 | 1958-10-30 | Rheinische Kalksteinwerke | Process for the production of burned or sintered dolomite |
DE1038536B (en) * | 1953-11-09 | 1958-09-11 | Smidth & Co As F L | Device for heat exchange between gases and solid particles suspended therein, in particular in connection with a rotary kiln |
DE1019604B (en) * | 1954-11-26 | 1957-11-14 | Berz Wolfgang Dipl Ing | Shaft-shaped preheating device for fine-grained or dust-shaped raw material, especially cement raw meal |
DE1178001B (en) * | 1956-12-08 | 1964-09-10 | Polysius Gmbh | Method and device for the exchange of heat between dust-like material and gas in the Sch, in particular for the pre-treatment of cement pipe material with exhaust gases from a downstream prefabricated kiln |
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