AIR SEPARATOR WITH PLENUM

摘要

Apparatus and method for separating lightweight waste from product with air supplied by a plenum. An air separator includes a blower duct directing air upward through product conveyed on a foraminous conveyor. The blower duct is in communication with a plenum through an opening. One or more blowers fill and pressurize the plenum with air without blowing the air directly through the opening. The drop in pressure from the plenum to the exit end of the duct draws air uniformly through the opening and into the duct. The uniform flow of air through the duct and the conveyor lifts lightweight waste from the product.