Patent ID: 6599005
Filing Date: 2003-07-29
Classification: B01F

Abstract:
A device for batch mixing, cooling, heating, drying and/or granulating powdery, granular and/or pasty materials, comprising:a conical mixing vessel having a sidewall with a smooth inner wall surface and a vertical axis, said vessel narrowing in a downward direction; a mixing shaft rotatably mounted for rotation in said vessel along said vertical axis; a plurality of elements mounted to and projecting in a generally radial direction from said shaft to adjacent said vessel inner wall surface; one or more mixing paddles pivotally mounted at a distal end of each projecting element to urge the material along the sidewall towards a top of the vessel by centrifugal force when said paddles are rotated by said shaft; a chopper in the top of the vessel for chopping material in an upper portion of the vessel, above said mixing paddles; and a drive motor for rotatably driving said mixing shaft.