Precise measuring: Silo-Weigh solves challenging high capacity weighing application at Castle Hill Quarry

摘要

A high capacity Silo-Weigh system, installed by AV Technology (AVT) on two large limestone silos, is playing a vital operational role at Castle Hill Quarry in Cannington, Somerset. The two outdoor silos, with a combined capacity of 400 tonnes, are mounted on a common structure supported by six steel legs. It is notoriously difficult to achieve accurate contents measurement on such silos. Modern level control systems may be able to achieve reasonable average level measurement results, but void formation together with changes in bulk density and surface topography during filling and emptying prevent them from providing sufficiently accurate weight related contents. Retro-fitting traditional load cells is not only very disruptive but also prohibitively expensive, with structural cross-talk further complicating matters.