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Primary Possibilities

Published Wednesday, November 01, 2006

Selecting a primary crusher can have far-reaching and sometimes unexpected consequences. Choose correctly, and material flow from the pit to the plant will most likely proceed efficiently and without excessive maintenance or downtime. Choose incorrectly, and a number of unpleasant consequences can follow. These can range from increased costs due to secondary drilling, blasting and rehandling of rock fragments too big for the crusher, to over-production of troublesome fines that can degrade plant efficiency. Conversely, changes in upstream conditions — such as modifications to established blasting practices or changes in raw material characteristics — could decrease the performance ...

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