A South Korean newsprint mill has awarded a contract to Jeffrey Rader Corp., Woodruff., S.C., to supply an alternative-fuel material-handling and boiler feed system to the 100 MW cogeneration plant that will provide power and process steam to the Jeonju mill.

"This is an innovative project, the first of its kind in South Korea," says Ted Gentile, Jeffrey Radar's manager of international sales. The mill will replace a coal-fired boiler with a grate-fired system using a bubbling fluidized bed (BFB) design capable of firing a mixture of alternative waste fuels consisting of bark, refuse-derived fuel pellets (RDFs), DIP sludge and plastics rejects from the mill's recycled-fiber process. The system is expected to be in full operation by the end of the year.

The Rader material-handling and boiler feed system will supply more than 30 tons/hr of waste fuels to the BFB boiler. The system will use pneumatic conveyors to transport fuel to a receiving hopper to distribute the fuel into two boiler house mounted-storage silos. Fuel is reclaimed with screw reclaimers before it is distributed and metered into four infeed points around the boiler.

"Because of the wide range of acceptable fuels, the system must be flexible in its design as well as robust and reliable…it provides 100 percent of the fuel to this boiler," Gentile says.

Jeffrey Rader supplies equipment to the forest products, pulp and paper, mining, aggregates, coal and power generation industries.