Pit & Quarry, January 2013
EquipmEnt Focus DRI llIng BlAsTIng Technology speeds up core sample gathering According to Boart Longyear the ls 600 sonic rig delivers more accurate core sampling less than 1 percent hole deviation reduced waste and faster penetration than conventional methods The rigs technology incorporates sonic frequencies that match the resonant energy of the ground allowing the core barrel to advance in unconsolidated and difficult overburden formations During drilling boreholes are cased continuously by first allowing the core barrel to advance into the substrate followed by the outer casing The ls600 can reach a drilling depth of up to 600 ft The sonic head of the drill produces frequencies of up to 150 hertz through a robust oscillator assembly An innovative air spring system protects the rig from extreme vibrations and redirects the energy down the drill string to the bit face www boartlongyear com Detonator features improved timing accuracy orica mining services offers the uni tronic 600 detonator Features include on bench testability of the detonator a significant improvement in timing accuracy more reliable communication with ancillary equipment and easier hookup to the blasting pattern On bench testability provides verification of circuit and detonator functionality prior to evacuation of the blast site for reduced production downtime when blasting More reliable communication and increased ease of hookup contribute to a more efficient trouble free blasting process As a further enhancement to safe blasting practices Orica offers the uni tronic blast box BB310R a remote blasting solution The remote blast box can be placed in proximity to the blast pattern and can communicate via radio modem to the firing control box which can be positioned at a point of safety up to 6500 ft away www oricaminingservices com www pitandquarry com January 2013 PIT QUARRY 23
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