DUO project for CEMEX UK at Doveholes proves a winner!
A recent Duo Unit Cost Processing project at Dove Holes quarry has proved to be a great success. Owned by CEMEX UK, the building materials supplier, Dove Holes Quarry in Derbyshire is a limestone quarry which produces approximately 6,000 tonnes of crushed limestone fines per week.
DUO’s installation, which has been successfully managed by the DUO processing team for the past two years, ensures that the filler content in the Limestone fines is washed out to bring the material up to sand classification standards. The crushed fines, which would previously have been used as a fill material, are now of a high specification to be utilised as a fine aggregate material.
This processed material is now suitable for use in concreting aggregate. The high specification sand is now used in CEMEX’s in-house batching plants as a replacement for natural sands. This quality product is then used by CEMEX UK in the manufacturing of concrete railway sleepers.
The simple yet effective installation used to create this added-value product consists of a Commander 510 feeder, a Finesmaster 120 and a stockpiling conveyor. The Commander 510 provides a steady feed of material to the Finesmaster 120 which removes silts, slimes and clays before dewatering the washed sand so that it can be stockpiled for use. The entire installation is powered using highly efficient electrical motors which reduce energy costs.
Through reviewing material analysis results and applying their years of experience in processing crushed fines DUO designed the configuration of the installation and day-to-day processes of running of the plant specifically for the Dove Holes quarry site to ensure maximum efficiency and the highest quality output possible.
CEMEX, realising the performance and cost effectiveness of the installation, chose to purchase the plant. This demonstrates again the flexibility of DUO’s equipment and their ability to provide installations designed to meet the individual requirements of projects.
