System for decanting material in tower-type malthouses

In a tower-type malthouse having floorage areas for steeping, germination and/or roasting of a product;

• each of said floorage areas having a working surface;
• an arm rotatably mounted for movement about the axis of said malthouse;
• and means carried by said arm for dispensing or performing selected operations on the product within a floorage area;
• wherein the improvement comprises;
• a plurality of separate vertical columns extending longitudinally within said malthouse, said columns disposed about the axis of said malthouse and collectively defining therebetween a central space extending through the various floorage areas of said malthouse;
• a duct disposed in said central space in each of said floorage areas for passage of the product therethrough, said duct having sidewalls, an upper portion and a lower portion;
• said lower duct portion having a deflector surface spaced from said sidewalls and connected thereto by corner posts to define therebetween passageways extending radially from said central space to provide communication between said space and the various floorage areas;
• said upper duct portion being in communication with an upper floorage area;
• a movable plug disposed for axial movement along said plurality of columns from a lower position to an intermediate position and to an upper position, the position of said plug serving to open or close said radially extending passageways;
• said plug having an upper conically-shaped section and a body portion extending downwardly therefrom, said upper conically-shaped section formed with a central opening configured to receive the lower portion of said duct;
• said plug further having a passageway therethrough, the upper end of said passageway being in communication with the central opening of said plug;
• a funnel-shaped member fixedly disposed in said central space about said plurality of columns, said member resembling an inverted cone having an enlarged upper cylindrical section positioned beneath said plug and a lower discharge conduit in communication with a lower floorage area, and said cylindrical section defining a mouth opening of said member;
• and
• elevator means for selectively moving said plug to one of its lower, intermediate or upper positions;
• whereby:
• (1) when said plug is moved to its lower position, the body portion of said plug is received within the cylindrical section of said funnel-shaped member, said dispensing means is operatively associated with the conically-shaped section of said plug, and said deflector surface of said duct is positioned adjacent to and in substantial alignment with the conically-shaped section of said plug to permit passage of the product from said duct to the working surface of the associated floorage area via said plug;
• (2) when said plug is moved to its intermediate position, the body portion of said plug remains received within the cylindrical section of said funnel-shaped member, the lower end of said plug passageway is in communication with the lower discharge conduit of said funnel-shaped member, and the deflector surface and the radially extending passageways of said duct are received within the central opening of said plug and are disposed in communication with the passageway through said plug to permit passage of the product from said duct to the lower floorage area via said plug;
• and
• (3) when said plug is moved to its upper position, said plug is spaced away from said funnel-shaped member to provide communication between the mouth opening of said funnel-shaped member and the associated floorage area, and said dispensing means is operatively associated with the mouth opening of said funnel-shaped member to dispense the product from the working surface of the associated floorage area to the lower floorage area via said funnel-shaped member.