Method and apparatus for separating waste materials

摘要

Waste materials of varying density are passed through a hammer mill for size reduction after which they are moved along a gravity path within a stream of hot inert gas. The stream of materials is intercepted by a transversely moving mass of heated inert gas that separates the lighter materials from the heavier ones. A manifold receives the lighter materials while the heavier items are picked up at a lower position by a sealed screw conveyor. An adjustably located table and damper plate enable varying the weight-cut.