IMPROVED COMMINUTION EFFICIENCY THROUGH CONTROLLED BLASTING DURING MINING

Authors
CHI G FUERSTENAU MC BRADT RC GHOSH A
Citation
G. Chi et al., IMPROVED COMMINUTION EFFICIENCY THROUGH CONTROLLED BLASTING DURING MINING, International journal of mineral processing, 47(1-2), 1996, pp. 93-101
Citations number
24
Categorie Soggetti
Mineralogy,"Mining & Mineral Processing","Engineering, Chemical
Journal title
International journal of mineral processing → ACNP
ISSN journal
03017516
Volume
47
Issue
1-2
Year of publication
1996
Pages
93 - 101
Database
ISI
SICI code
0301-7516(1996)47:1-2<93:ICETCB>2.0.ZU;2-6
Abstract
Improved comminution efficiencies of material that had been blasted ut ilizing regular burden and spacing distances and that which had been b lasted utilizing a reduction in burden and spacing distance of 25% are compared. Single particle impact tests showed that fracture stress an d fracture energy are about 15% less for the reduced burden and spacin g material. Single particle roll mill crushing revealed that about 25% less energy is required to crush reduced burden and spacing material in comparison to the regular burden and spacing material.