As part of the continuing investment in Blackhills Quarry, the upgrade to the Aggregate Processing Plant has reached another milestone with the new Stockpile Conveyor fully commissioned after four weeks of site installation works. As with the tunnel and feeders, the work was carried out by Dernaseer Engineering from Northern Ireland.
The conveyor is 86 metres long and has a discharge height of 28 meters. It is designed to deliver aggregates from the Primary crushers at 0/350 mm in size at a rate of 800 t/hr. At its peak, the aggregate stockpile will hold approximately 5,000 t. This will be delivered by a combination of three Feeders to the Crushing and Screening Plant which will be complete later in 2019.
The aggregate storage bins, once operational, will feed directly into the Asphalt Plant which will mean that stocks will be kept dry and readily available. This will also deliver energy savings and a reduction of the carbon footprint with less fuel needed to transport aggregates to and from stockpiles and removing the need to remove excessive moisture from dust and aggregates stored outside.
This is all part of a major overhaul to the site and will be a great improvement and benefit for the unit and its employees for many years to come.