Half round cylindrical configuration for dedusting apparatus

A dedusting apparatus for cleaning contaminants from contaminate-laden particulate material, comprising:

• a housing including a semi-cylindrical front housing and a planar back wall;
• a product inlet port having a product inlet tube through which said contaminate-laden particulate material is introduced into said housing and a product discharge port through which particulate material is discharged from the housing;
• a partial-conical wash deck terminating in a tip located at a center of curvature of said product inlet tube against said back wall to direct the flow of said contaminant-laden particulate material uniformly over the partial-conical wash deck, the wash deck having an outer peripheral bottom edge that is spaced internally from said front housing to define a Venturi zone for the passage of air between said wash deck and said front housing;
• said wash deck being formed with a plurality of apertures for the passage of air through the wash deck to clean contaminants from said contaminant-laden particulate material passing from said product inlet tube over said wash deck.

A dedusting apparatus for cleaning contaminants from contaminate-laden particulate material, comprising:

• a housing including a semi-cylindrical front housing and a planar back wall;
• a cylindrical product inlet port having a semi-cylindrical product inlet tube through which particulate material is introduced into said housing and a product discharge port through which particulate material is discharged from the housing;
• a baffle to direct the flow of said particulate material from said product inlet port into said product inlet tube;
• a partial-conical wash deck detachably mounted to said back wall and terminating in a tip located at a center of curvature of said product inlet tube against said back wall to direct the flow of said contaminant-laden particulate material uniformly over the partial-conical wash deck, said wash deck being formed with a plurality of apertures for the passage of air through the wash deck to clean contaminants from said contaminant-laden particulate material passing from said product inlet tube over said wash deck;
• and
• a knife member coupled with a deflector member that is vertically movable relative to said wash deck and said product inlet tube to define the flow rate of particulate material passing from said product inlet tube onto said wash deck, said knife member including a knife edge extending below said deflector member and a pair of laterally extending actuator wings being operably connected to a linear actuator to affect vertical movement of said deflector member and said knife member.