Comminution and classification technologies of iron ore
The crushed ore then enters a grinding circuit consisting of six grinding mill lines. Each line consists of a m (40 ft) diameter × 11 m (36 ft) long AG mill with a 28 MW gearless motor in closed circuit with a pebble crusher and primary classifying cyclones. ... The main components of the HPGR machine are the rolls, bearings, frame ...