Mining Mirror November 2018 | Page 23

Mining in focus detonator in each blast area prior to the blast, it is expected that blast events will consistently deliver the expected results safely, every time, on time and within a smaller window, allowing for shorter shift changes and optimised value. b Rockbreaker breaking ore on top of a grizzly screen underground at Cullinan. www.miningmirror.co.za NOVEMBER 2018 MINING MIRROR blasting system is that it takes a Ease of use within a mining leap forward in communication environment is a key feature of the technology. “The cornerstone of system, as it is compatible with the the system is that it introduces current infrastructure of the mine. sophisticated capabilities without So far, over 80 successful blasts have clouding or complicating the taken place at Cullinan with the CBS. operation. That’s what made this With the ability to thoroughly test partnership with Petra so easy at the complete blast circuit up to each the end of the day.” The implementation of the CBS at the mine, in December 2017, included extensive engagement with internal and external stakeholders. With safety as a key consideration, the system offered improved control over seismicity (where relevant) and reduced risks of underground employees coming into contact with potentially harmful The central blasting system enables underground mines to gases and fumes initiate blasts safely and conveniently on surface. emitted by explosives. [21]