What is a Stirred bead mills?

Question: What is a Stirred bead mills?

Reply: Stirred bead mill is a grinding mill that used widely for ultrafine grinding minerals and other materials to particle sizes below a few micrometers. The energy needed for breakage is transferred through the grinding media to the particles. For a given particle size, mineral type, and specific energy input, the bead size plays a very important role in the comminution process, particularly with respect to the stress intensity and the stress number.