Dedusting Apparatus Having Dual Wash Decks with Individually Adjustable Product Flow Regulation

A dedusting apparatus for removing dust and debris from a flow of particulate material, comprising:

• a housing connected to a central product inlet opening to provide a flow of contaminated particulate material into said housing;
• a pair of opposing wash decks defining a pair of oppositely directed, downwardly sloped upper surfaces terminating at respective discharge ends and being positioned to receive particulate material from said product inlet opening to flow along said upper surfaces, each said wash deck being formed with openings therethrough to allow a passage of air through said wash deck into the flow of particulate material over the upper surface of said wash deck;
• an inlet deflector corresponding to each of said wash decks, each inlet deflector being positionably movable independently of the other inlet deflector to control the flow of particulate material over the upper surface of each corresponding wash deck, each said inlet deflector being movable between a closed position engaged with the corresponding wash deck to stop the flow of particulate material past the inlet deflector and onto the wash deck, and an open position defining a gap between a distal end of the inlet deflector and the upper surface of the corresponding wash deck to allow the flow of particulate material over the corresponding wash deck;
• and
• a pair of product outlet openings aligned with a discharge end of each said wash deck to receive cleaned particulate material therefrom;
• each said product outlet opening being laterally offset on opposing sides of said central product inlet opening such that said central product inlet opening and neither of said product outlet openings are vertically aligned.

A particulate material dedusting apparatus for cleaning unwanted debris from the particulate material, comprising:

• a housing;
• a central product infeed opening directing a flow of contaminated particulate material into the housing;
• a pair of primary wash decks joined at an apex and extending downwardly and outwardly therefrom to opposing discharge edges;
• a clean air inlet port to direct a flow of clean air underneath said primary wash decks to pass air through said primary wash decks to create cleaned particulate material discharged from said discharge edges, said clean air inlet port being located in a floor member of said housing to blow air directly upwardly into an underside of said wash decks;
• a Venturi zone located outboard of each respective discharge edge;
• and
• a cleaned product discharge port supported by said housing for the discharge of cleaned particulate material from the housing.