In another groundbreaking performance by Dyno Nobel, the world record for the largest number of electronic detonators fired in a single blast was smashed at the BHP Billiton Iron Ore Jimblebar operation, 40km east of Newman, with 6,382 detonators being fired in a single blast. In this blast, BHP Billiton also claimed a Western Australian record for the largest open cut mine blast, liberating 10.7 million tonnes of iron ore.
The mine initially chose DigiShot Plus detonators to minimise misfires, simplify reconciliation and eliminate the need to check the hole-to-hole tie in, resulting in a considerable time saving on the day of firing. After building confidence in the system to deliver great results and fire big shots, the mine set themselves the challenge of firing a shot that would deliver planning and production benefits through its sheer size.
The blast was mostly single primed, with over 2,500 tonnes of bulk explosives loaded in a two week period. The shot was initiated on time, without any delays and with no leakage on any channel. The mine was thrilled with the blast result and are the proud new owners of a World Record for the most electronic detonators fired in a single blast.
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