Coin retrieval from refuse

摘要

An apparatus and method for screening out coins from a non-ferrous residue throughput of a resource recovery facility, and including a trommel (10) comprised of an open ended drum (14). The cylindrical portion of the drum (14) is formed of spaced-apart elongate pipe members (20) defining a screen extending between the inlet end (16) and the outlet end (18) of the drum. The drum (14) is rotatable along its longitudinal axis and positioned such that the non-ferrous residue throughput moves from the inlet end (16) to the outlet end (18) as the drum rotates and tumbles the residue in a progressive helix pattern to cause the screening out of coins from the residue throughput, with the screened coins exiting through the space (21) between the elongate pipe members (20) and the remaining residue throughput being discharged through the outlet end (18) of the drum (14).