IMPROVED ROCK FRAGMENTATION, CRUSHING AND VIBRATION CONTROL IN AMERICAN QUARRY ,THANKS TO DAVEYTRONIC® ELECTRONIC BLASTING SYSTEM
The findings during this study at this quarry provide further evidence quantifying the benefits of using of high accuracy detonators in terms of improved blast performance as typified by:
. A 43% decrease in the mean size of rock in the post blast muckpile from 8.33 to 4.79 inches.
. A 17% increase in the tonnage throughput at the primary crusher.
A maintenance of regulatory vibration levels and improved frequency content of ground vibrations without scaling down blasting program. The above results have been obtained without the implementation of any changes in design or optimization techniques. The potential to shoot larger blasts with reduced environmental impacts while increasing blast performance could improve public acceptance and reduce down time during blasting. Continued use of the electronics at this site combined with blast optimization techniques should yield even greater benefits.
