IMPROVED APPARATUS AND METHOD

摘要

An apparatus (10) for use in the treatment of at least one substrate with a multiplicity of solid particles comprising: a) a housing (20) in which a drum (40) is rotatably mounted; b) a door (60) moveable between an open position wherein the at least one substrate can be placed in the drum and a closed position wherein the apparatus is substantially sealed; c) a separator (100) mounted in the door, wherein the separator comprises a perforated portion; d) a flow pathway pipe (110) mounted on or in the housing, wherein the flow pathway pipe comprises an outlet (140); and e) pumping means (210) configured to pump treatment liquor and a multiplicity of solid particles from a first location through the flow pathway pipe and out of the outlet towards the separator; wherein the separator is arranged to direct the multiplicity of solid particles into the drum and wherein the separator is further arranged to direct a portion of the treatment liquor to a location other than the drum.