System 11

Bank of Silos

This system involved the expansion of a plastics extrusion factory (which PJC Systems already controls a large proportion of) to incorporate a number of additional silos to hold a number of new products. The silo base was designed for a total of ten silos, although not all were initially installed.

PJC Systems designed a starter/marshalling panel, to be mounted in the skirt of the first silo. This was designed to switch the power to ten rotary valves, and two exhausters, even though not all were installed at this stage. Space has been allowed in the panel for the future starters and marshalling terminals. Control signals are interfaced with the main control system within the mixing plant, which PJC Systems installed in 1995.

PJC Systems also carried out modifications to the mixing plant control and SCADA systems to incorporate the new bank of silos.