Their challenge

This recurring Salas O’Brien client engaged our engineering expertise during an expansion and modification to a coal handling system at one of their power generation stations. Our part of the project involved configuration of a new coal blending system that would integrate eastern and Colorado coals. The new system needed to occupy the same space as its predecessor, and the client needed to maintain coal yard and plant operations during the fast-tracked design and construction schedule.

Our solution

Our team’s engineering services for this project included foundation and structural design, as well as design for the mechanical, electrical, fire alarm, dust suppression, and control systems. This included retrofit of an existing motor control center (MCC) and starter that powered the original conveyor; an evaluation of and adjustments to the existing power distribution systems; and modification and integration of existing reclaim hoppers and conveyors. Our designs also specified a new, longer stockout conveyor system with a hot-standby Programmable Logic Controller (PLC) that interfaces with existing relay logic. In addition to this engineering design work, our team also provided project management, multi-discipline CAD design, construction drawing preparation, equipment supply, field support, and as-built drawings.