Progress Energy – Crystal River Station
- Owner: Progress Energy Florida
- Project: Limestone and Gypsum Handling Systems
- Location: Crystal River Station (Units 4 & 5), Crystal River, Florida
- Scope: Engineering, Procurement, Construction, Startup and Commissioning
Project Background
Roberts & Schaefer Company was awarded a turnkey contract from Environmental Partners Crystal River for engineering, procurement, construction, start–up and commissioning of the limestone and gypsum handling systems at Progress Energy Florida’s Crystal River Station (Units 4 & 5) in Crystal River, Florida. The systems will be completed in 2009.
The limestone handling system is designed to receive limestone from back–dump trucks at two receiving hoppers with drag chain reclaim conveyors. There is space allowed for a future third receiving hopper. The limestone is conveyed at 1,700 TPH to the limestone storage shed by the stockout conveyor with a traveling tripper. The traveling tripper forms a 47,000–ton limestone storage pile. Limestone is reclaimed from the storage pile with a traveling portal reclaimer and conveyed at 500 TPH to a transfer tower. The storage shed also has an emergency chain reclaimer fed by mobile equipment. The limestone is conveyed to the crusher building across a certifiable belt scale.
At the crusher building with surge bin, the limestone is crushed by one of two roll crushers before being transferred to the three silos at the limestone preparation building. The center silo is fed by chute work and a reversing conveyor feeds the end silos. All areas of the limestone handling system are provided with bag house dust collection or wet dust suppression.
The gypsum handling system is designed to receive gypsum from the process filters and convey it at 210 TPH on a series of conveyors to the last gypsum transfer tower. The gypsum is conveyed to this gypsum transfer tower across a certifiable belt scale. At the gypsum transfer tower the gypsum is transferred to either truck feed conveyors to load at one of two truck areas or to the stockout radial stacker to form an 11,000–ton storage pile.