7.2　Crushing and Screening Flow Sheet

7.2.1　For conventional comminution process for large and medium-size concentrator plant，the crushing and screening system shall adopt the three stages crushing with one closed circuit.The the size of product shall be less than 12mm.For the smaller concentrator plant，two stages crushing with one closed circuit shall be adopted，with the size of product less than 16mm.

7.2.2　The ore washing process shall be adopted for the raw ore containing more slime and higher moisture content.