Studies in fine grinding of ores : with particular reference to surface determination.

by Taylor James. Kennedy

Institution: McGill University
Department: Department of Mining Engineering.
Degree: Master of Engineering.
Year: 1939
Keywords: Mining Engineering.
Record ID: 1499979
Full text PDF: http://digitool.library.mcgill.ca/thesisfile130192.pdf


Note: two pages labeled p.78. Modern practices in mining and milling operations reveal no factor more significant than the steady reduction of cost in milling and extraction processes. New processes have succeeded one another with rapidity, rendering old standard processes obsolete, and resulting in higher extraction and lowered costs, undreamed of a few years ago. In all treatment of ores, the operations of crushing and grinding have always been of prime importance. Of late years reduction of crushing and grinding costs, design of more efficient crushing and grinding machinery, and the relationship between power input and crushing work done, have been fertile fields for extensive research and experimental work. [...]