See our productivity and cost control success stories in the stone industry.
3D Face Profiling
This quarry operation in Eastern Canada requested load and shoot services through Dyno Nobel to include face profiling in order to ensure safe and optimal control of the free face.
Better Fragmentation, Blast Consistency and Expanded Pattern with DigiShot Detonators
This limestone mine in Northern Michigan was looking to improve their blasting and lower their overall blasting costs. Dyno Nobel proposed a solution using DigiShot electronic detonators to decrease oversize, fines and tight digging. The solution included less holes, less powder and higher powder factors. A drone video was taken to study movement and lift of blast.
Blast Design Changes to Accommodate Poor Geology
This Granite Quarry in the Carolinas had poor geology, resulting in excessive back-break and requiring either paired holes, reduced front row spacing or angle holes and was further complicated by neighboring homes within 750 fee of the shot area. Previous shots were resulting in concerns from neighbors and peak particle velocity values approaching the NC DNR limit. After the changes made by DynoConsult seismic results were excellent, with a significant reduction in recorded peak particle velocity and all channels showing a frequency spectra about 70 Hz. Back-break was reduced and the overall breakage was good. No complaints were received on this blast.
Collaboration with DroneDeploy Leads to Mine Mapping
Most mine mapping, face profiling and volumetric analysis performed is done using reflector-less scanning laser systems or photogrammetry using calibrated 35mm digital cameras.
DIFFERENTIAL ENERGY Applied to Improve Fragmentation
Optimizing fragmentation to improve downstream operations
DIFFERENTIAL ENERGY in Quarry Blasting
The ground a this quarry is seamy in places creating situations where blends can migrate into the cracks. In some areas the bottom of the face contains very hard material with very soft/easy to break material in the middle of the hole. The quarry is in close proximity to neighbors so NOx and vibration are important considerations.
DIFFERENTIAL ENERGY Technology Improves Fragmentation by 52.7%
Using an optimization study that covered a 20-month period in 2014 and 2015, the client found a high percentage of fines in the blasted stone. The client called in DynoConsult to help study the reasons and find a cost effective solution.
DIFFERENTIAL ENERGY Yields Excellent Results
Initial test and shot results showed better muck pile distribution, a 10% reduction in powder while achieving an equivalent or better blasting result, holes were loaded based on pounds which proved to be much more accurate and holes were never stemmed prior to gassing completion as they often were before and explosive column height actually grew 8 to 9 feet.
Fines Reduction Project
The goal of the study was to achieve the best possible fragmentation with chemical blasting for costs and for bank ton yield from reduced fines. Customer had attended Quarry Academy and saw opportunity for applying principals discussed at QA to improve his operation and reduce costs.
Higher Powder Factor Increases Crusher Throughput and Digibility Rates
The quarry was looking for lower explosives costs overall. However, the dig rates and crusher throughputs were not acceptable with 0.95 g/cc.