EP 2075072 B1 20101208 - Device and method for monitoring the movement of a grinding ball in a ring ball mill
Title (en)
Device and method for monitoring the movement of a grinding ball in a ring ball mill
Title (de)
Vorrichtung und Verfahren zur Überwachung der Mahlkugelbewegung in einer Kugelringmühle
Title (fr)
Dispositif et procédé destinés à la surveillance du mouvement d'une balle de broyage dans un broyeur à bague de roulement à billes
Publication
Application
Priority
EP 07025134 A 20071227
Abstract (en)
[origin: EP2075072A1] The ball ring mill (99) has a grinder (1) with multiple grinding balls (4), which are guided in a mill track between a grinding ring (2) and a pressure ring (3). The grinding balls are movable along the mill track due to difference of rotational speeds of the grinding and pressure rings. A sensor system (11) is provided for contactless detection of the movement of the grinding balls, where the sensor system has expansion-measuring strips, a radiation source e.g. microwave source and light source, and a radiation detector e.g. microwave detector and light detector. The sensor system is inductive, capacitive, magnetic, optical, acoustic and electromagnetic proximity switches. An independent claim is also included for a method for monitoring a movement of a grinding ball in a ball ring mill.
IPC 8 full level
B02C 15/12 (2006.01); B02C 25/00 (2006.01)
CPC (source: EP)
B02C 15/123 (2013.01); B02C 25/00 (2013.01)
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
EP 2075072 A1 20090701; EP 2075072 B1 20101208; DE 502007005912 D1 20110120
DOCDB simple family (application)
EP 07025134 A 20071227; DE 502007005912 T 20071227