B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 17/18 (2006.01) B02C 17/24 (2006.01) B02C 23/04 (2006.01) B02C 25/00 (2006.01)
Patent
CA 2560875
The invention relates to a method for detaching a charge (5) which is stuck to the inner wall of a grinding pipe (1), wherein the drive device (2) of the grinding pipe (1) is controlled by a control device (3) for targeted removal of the charge (5) that is stuck. The grinding pipe (1) is rotated in a targeted manner such that the charge (5) that is stuck is removed from the inner wall of the grinding pipe (1) as a result of multiple modification of the rotational speed of the grinding pipe (1) and, optionally, as a result of abrupt braking of the grinding pipe (1). Generally speaking, the material- dependent maximum angle of rotation F of the grinding pipe is not exceeded in order to avoid the charge that is stuck from falling in an uncontrolled manner. The invention supercedes labour-intensive and protracted methods for detaching such charges (5) since the tasks can be carried out by the same motor of the drive device (2) which is used to drive the grinding pipe (1) during the grinding process.
L'invention concerne un procédé pour détacher une charge (5) collant à la paroi interne d'un tube broyeur (1), le dispositif d'entraînement (2) du tube broyeur (1) étant commandé par un dispositif de commande (3) pour détacher de manière ciblée la charge (5) collée. Selon l'invention, le tube broyeur (1) tourne de telle sorte que le changement répété de la vitesse de rotation du tube broyeur (1) et éventuellement le freinage abrupt du tube broyeur (1) permettent à la charge (5) collée de se détacher de la paroi interne du tube broyeur (1). On ne dépassera pas un angle de rotation .phi. maximal du tube broyeur (1), déterminé en général en fonction du matériau, pour éviter une chute incontrôlée de la charge (5) collée. Cette invention rend superflus des procédés intensifs en termes de travail et de temps nécessaires à la libération de la charge (5) collée, laquelle est détachée au moyen du moteur du dispositif d'entraînement (2), moteur qui entraîne le tube broyeur (1) pendant le broyage.
Becker Norbert
Smits Stefan
Tischler Kurt
Aktiengesellschaft Siemens
Smart & Biggar
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