Patent ID: 8312994
Filing Date: 2012-11-20
Classification: B07B,B08B

Abstract:
1. A dedusting apparatus for cleaning contaminates from particulate material, said dedusting apparatus being formed in modules comprising: a cylindrical housing defining an upper product inlet opening and a lower product discharge opening; a feed hopper terminating in a lower feed hopper discharge opening; an air supply apparatus supported by said housing at a lower portion thereof and terminating in a vertically oriented leg located centrally within said housing; an inverted conical wash deck assembly mounted on said vertically oriented leg and being oriented with an apex thereof positioned centrally within said feed hopper discharge opening, said wash deck being formed with a plurality of apertures around the conical surface thereof for the passage of air through said wash deck and with a bottom plate member having a central opening therein for the passage of said air supply apparatus, said bottom plate member including vents arranged around a circumferential edge thereof to allow air to move through said vents and upwardly between said wash deck assembly and said housing to create a Venturi zone around said wash deck assembly to clean particulate material falling off of said wash deck assembly; and an air discharge collector detachably mounted on top of said housing.