DEST000591MA - Coal mill, especially for large outputs, with an attached sifter - Google Patents
Coal mill, especially for large outputs, with an attached sifterInfo
- Publication number
- DEST000591MA DEST000591MA DEST000591MA DE ST000591M A DEST000591M A DE ST000591MA DE ST000591M A DEST000591M A DE ST000591MA
- Authority
- DE
- Germany
- Prior art keywords
- coal mill
- mill
- attached
- grist
- catch pocket
- 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
Description
Das Hauptpatent (Anmeldung St. 27 III/50c) betrifft eine Kohlenmühle, die aus einer Schlagradmühle, insbesondere für große Leistungen, und einem angebauten Umlenksichter besteht, wobei der Mühle die Trägerluft zentral und das Mahlgut tangential über die ganze Schlagradbreite verteilt zugeführt wird. Durch die Erfindung wird diese Mahlanlage weiter verbessert, indem das Mahlgut gemeinsam mit der Trägerluft der Mühle zentral zugeführt wird. Hierdurch ergibt sich eine starke Durchwirbelung des Mahlgutes und dadurch eine intensive Zerkleinerung, so dass die Gesamtleistung der Mühle einschließlich des Sichters weiter erhöht wird. Im weiteren Ausbau der Erfindung wird in die zentrale Mahlgut-Luft-Zuführungsleitung eine Fangtasche zum Auffangen von im Mahlgut enthaltenen Eisenteilen oder dgl. eingebaut. Damit die Fangtasche nicht mit Mahlgut angefüllt wird, wird in ihrem Boden Luft mit einem solchen Druck eingeblasen, dass die Mahlgutteile in die Hauptzuführungsleitung für Mahlgut und Trägerluft gerissen werden, während die spezifisch schwereren Eisenteile im Sumpf der Fangtasche bleiben.The main patent (registration St. 27 III / 50c) relates to a coal mill, which consists of a beater wheel mill, especially for large capacities, and an attached deflecting sifter, the carrier air being supplied to the mill centrally and the grist being distributed tangentially over the entire beater wheel width. This grinding system is further improved by the invention in that the ground material is fed centrally to the mill together with the carrier air. This results in a strong swirling of the material to be ground and thereby intensive comminution, so that the overall performance of the mill including the classifier is further increased. In the further development of the invention, a catch pocket for catching iron parts or the like contained in the grist is built into the central ground material-air supply line. So that the catch pocket is not filled with grist, air is blown into its bottom with such a pressure that the grist parts are torn into the main feed line for grist and carrier air, while the specifically heavier iron parts remain in the sump of the catch pocket.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt:An exemplary embodiment of the invention is shown in the drawing:
In die Mahlzuführungsleitung 1 ist eine Fangtasche 2 eingebaut, in die entsprechend den Pfeilen 3 Pressluft eingeblasen wird, um das Hineinrutschen und Liegenbleiben der Kohle zu verhindern. Durch die Reinigungstür 4 können von Zeit zu Zeit die in der Fangtasche befindlichen Fremkörper 5 entfernt werden.A catch pocket 2 is built into the grinding feed line 1, into which compressed air is blown in accordance with the arrows 3 in order to prevent the coal from slipping in and remaining there. The foreign bodies 5 located in the catch pocket can be removed from time to time through the cleaning door 4.
Claims (3)
Family
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