Das, Avimanyu and Singh, Ratnakar and Sahu, K K and Abhilash, and Goswami, N G (2008) Comminution. In: Training Course on Mineral Processing and Nonferrous Extractive Metallurgy, June 30 - July 5, 2008, NML, Jamshedpur.



The process ofsize reduction is known as comminution. In mineral processing parlance, comminution in coarse range is known as crushing and in fine range it is called grinding. Generally, crushing is carried out in two stages, namely, primary and secondary crushing. Jaw and Gyratory type crushers are used mostly for primary crushing. They are characterized by wide input side (known as gape) and narrow discharge. They can handle large tonnage of material. Jaw crushers produce a reduction ratio of 4:1 to 9:1 while gyratory crushers produce a somewhat larger range of 3 : I to 10:1. The reduction ratio is defined as the representative feed size by representative product size.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:comminution; grinding; roll crusher; rotary breakers; intensive operation
Divisions:Metal Extraction and Forming
ID Code:5882
Deposited By:Sahu A K
Deposited On:14 Aug 2012 09:53
Last Modified:14 Aug 2012 09:53
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