IM 2018 July 18 | Page 40

FUELS AND OILS is a heavy vehicle dispensing skid, self-bunded, with two pumps (duty/standby configuration) and two-stage filtration integrated into the skid. There is also a dispense metering skid, self- bunded, with flow meter and FMS control valves. This skid is located adjacent to a Banlaw-manufactured loading arm. Dry Break Auto ID dispensing nozzles make a direct electronic ID connection due to Auto ID technology being integrated inside of the refuelling hardware. This allows for process automation and industry best diesel flow rates for an expected fleet of 67 heavy vehicles. The Fuel Management System itself has five Fuel Management Controllers providing local user interface, fluid security, collecting temperature compensated flow data, and triggering the activation of pumps and valves. Flow and temperature-compensated fluid measurements are captured throughout the site to enable industry-best reconciliation accuracy. PLC-controlled automated stock rotation capabilities have been deployed to minimise fluid degradation within both storage facilities. Two 6 m Motor Control Centre (MCC) platforms provide powered-hardware control for the facilities and all Banlaw systems have been configured to interface with the site control network, allowing control room visibility and interaction with pumps, alarms, tank levels, and PLC systems (SCADA). Banlaw’s ResTrack RMS (Resource Management System) is the overarching software for enterprise reporting, and the configuration of all fluid storages, moves, and access for fuel-consuming assets. Go-live support includes Banlaw presence on site for the period directly after system activation. Banlaw technicians focus on the training of users to enable safe fuelling and fluid-management processes, establishing accurate FMS reporting, and ensuring all systems are functioning correctly. The Service Level Agreement covers ongoing remote services support to reconciliation accuracy, identifies continuous improvement opportunities, and ensures software maintenance is conducted in a timely manner. Site visits are conducted quarterly. During these visits, meter calibration services (using NMI- certified master meters) are performed to ensure the reconciliation target of >99.5% accuracy is achieved. These visits also focus on safety checks, and improvement plans aiming to deliver cost reductions, and efficiency gains. There were some environmental challenges to address. The area of operation is prone to cyclones, and therefore all structures need to be cyclone-rated. This was of particular importance for the Motor Control Centres (MCCs), due to the large platforms (around 6 m in length). Also during the ‘wet season’, humidity remains 38 International Mining | JULY 2018 above 85% for months on end, and rainfall per year exceeds 2 m for the work site. Besides influencing in which months deployment of the fuel management project would be possible, these local conditions mean that tropics-rated (very high humidity) electrical motors needed to be used to ensure reliable long-term operation of equipment. During the ‘dry season’ there are some months with average rainfall of just 1 mm, and humidity averages 61%. For this reason, both storage and dispensing functions include particulate dust controls. Finally, bauxite, the resource being mined, has significant corrosive properties. Tanks, pipework, skid frames and more have been specially treated to make them resilient to constant exposure to the minerals it contains. “Large and long-term resource projects such as Amrun, engender a great deal of attention and also concern from the public and government. Governance and visibility is critical for all stakeh