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High Energy Blasting Delivers Mining and Milling Improvements, Mt Rawdon

Mt Rawdon is an open pit gold mine located 75 Km south west of Bundaberg in Queensland. It is owned by the Evolution group, a leading growth focused company and Queensland’s largest gold producer with its four operating sites. Mt Rawdon is a low grade mine (0.71-1.0 g/tonne) yielding approximately 100,000 oz of gold p.a.

Powersieve™ Fragmentation Analysis for Quarry Plant Design

To safeguard the future of the quarry, Boral recently made the decision to replace their existing fixed plant which was originally built in the 1960s and nearing the end of its service life. To do this, Boral will design and construct the new crushing and screening circuit as part of the Deer Park Quarry Plant Replacement Project

Blast Fume Reduction - New Acland Coal Mine Queensland, Australia

New Hope Group’s New Acland Coal (NAC) site is a multi-pit, open-cut coal mine situated approximately 150 km west of Brisbane in Queensland. The NAC site produces 4.8 Mtpa of coal for export and local markets. Bound by rural properties, the New Hope Group is committed to being a responsible organisation towards both the environment and the local community in which it operates.

The challenging geology of the area is prone to the production of post blast emissions in the form of oxides of nitrogen (NOx). NAC is strongly committed to high environmental and community standards and made the decision to concentrate on a NOx elimination / minimization process.

Orica commenced blasting services at NAC in January 2013 with the agreement centered around Key Performance Indicators (KPI) for services and bulk explosives that are specifically geared toward the reduction of NOx fume events.

Cost, productivity optimisation through blast planning, scheduling

An optimised blast plan developed between one of Australia’s largest aggregate companies Boral and Orica at a Queensland quarry has delivered significant improvements to the operation’s annual extraction plan. Karen Normanton outlines how the two parties were able
to optimise blast performance, improve size and shape and reduce costs per tonne of rock.

Enhanced Borehole Camera
Enhanced Borehole Camera

The Enhanced Borehole Camera (EBC mkIII) combines a number of capabilities from other
instruments into one unit. The unit is capable of measuring depth, hole diameter, and hole temperature
at the same time as recording video footage. Postprocessing allows this data to be combined to produce
a final video with the telemetry synched to the video footage.


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