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Prediction of mill grindability using percussion drilling data.

Hustrulid WA; Lo YC

For Reference Only At Bureau Libraries, 1987; :1-42

10005660

This report presents the results of a preliminary examination of the relationship between grindability and percussive drillability in hard and soft rock. The research indicates that grindability increases along with drillability but in a nonlinear fashion owing to relative differences in the ratio between these two factors in soft and hard rock. It was also determined that the specific energy index for grindability is highly dependent upon the average particle size and size distribution of the materials.

Mining; Hard rock mines; Rock mechanics; Grinding equipment; Drilling; Grinding mills

19870101

CP

1987

OFR 26-87

WO

For Reference Only At Bureau Libraries

UT

University of Utah