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Conference Proceedings

Fifth Large Open Pit Mining Conference

Conference Proceedings

Fifth Large Open Pit Mining Conference

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Using Electronic Detonators to Improve Fragmentation, Diggability and Crusher Throughput

This paper reports on the field results of using electronic detonators to improve blast outcomes. Orica's electronic detonator, the i-konTM Digital Energy Control System, allows exact and precise timing in 1 ms increments from 0 to 15 000 ms. This gives the blast engineer and shotfirer the ability to fire a blast using any possible desired sequence. In the three years that have followed the release of the i-konTM System, Orica has been re-exploring ways of initiating blasts using the abilities of electronic detonators to improve fragmentation, diggability and crusher throughput. This study began with revisiting fundamental blast theory, lead to generation of new state of the art computer fragmentation modelling and ended with many iterative field trials of i-konTM blasts across a wide selection of mining methods and rock types. At three sites a detailed measurement process was undertaken to compare the results of pyrotechnic blasts with i-konTM blasts. This paper will detail the significant improvements in fragmentation, diggability and crusher throughput that was found at these sites.
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  • Published: 2003
  • PDF Size: 0.791 Mb.
  • Unique ID: P200307025

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