Crushers
Crushing is the first mechanical stage in the process of comminution in which a principal objective is the liberation of the valuable minerals from the gangue. Crushing is typically a dry operation which is performed in two- or three-stages (i.e., primary, secondary, and tertiary crushing). Lumps of run-of-mine ore as large as 1.5 m across are reduced in the primary crushing stage to 10–20 cm in heavy-duty machines.
Keywords
Primary crushers; secondary crushers; high pressure grinding rolls; impact crushers; circuits and control
6.1 Introduction
Crushing is the first mechanical stage in the process of comminution in which a principal objective is the liberation of the valuable minerals from the gangue. Crushing is typically a dry ...
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