The BlastWeb® system consists of Hardware Control Equipment modules (BCUs) installed at suitable underground sites, linked together through available communication networks to facilitate communication between the surface PC (Surface Blast Controller) and BCUs (Blast Control Units) underground.
The Red Smartkey contains the required blast command and coded signal, which enables users to use BCUs in a standalone mode.
The Yellow SmartKey does not contain the blast command and is used in a central blast configuration. It requires the blast command to be sent from the Surface Blast Controller, when the whole mine is cleared from personnel and instruction to blast is received.
The Blast Control Unit (BCU) provides the required blast voltage and encoded signal necessary to initiate the blast. The BCU can be used in a standalone or remote blasting mode, blasting a maximum of six blasting points from a point of safety using a Red SmartKey. The BCU can be powered from 110, 220, or 525 V and incorporates a battery back-up system in case of power failures. The BCU can link via a Copper or Ethernet backbone to other BCUs and a Surface Blast Controller to form an integrated communication system which enables users to have access to real time information on all events occurring and to blast the entire installation from a central point.
The BlastWeb® Surface Blast Controller allows centralised blasting to take place from the control room and is password protected. The Surface Blast Controller collects, displays and stores all events on a real time basis and supplies warnings of all faults or errors on the system enabling users to do fault diagnostics and fix all problems before blasting time. The Surface Blast Controller sends the blast instruction to all selected BCUs when prompted by the blaster. It also compiles blast reports to supply blast information.
The Blastweb® system supports the following products:
The DriftShot® Electronic Detonator is built on the proven DigiShot® platform. The detonator utilises electronic circuitry containing a system-specific, coded signal which provides an additional level of security. The detonators are produced with a robust over-extruded steel down-line wire for added flexibility.