Classifying wheel for centrifugal-wheel air classifier
AssigneeHosokawa Alpine Aktiengesellschaft
InventorGeorg Schumacher
Life of this patent
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Abstract
A classifying wheel for a centrifugal-wheel air classifier, through which the classifying air flows from outside to the inside against its centrifugal action. The wheel has blades arranged in a ring extending parallel to the axis of rotation of the wheel. The blades are positioned between a circular disc carrying the classifying wheel hub and an annular cover disc. The classifying wheel is entirely made in one piece and of a wear-resistant sintered material. The flow channels of the classifying wheel are formed by the surfaces of the classifying wheel blades extending parallel to each other and in direction of the axis of rotation of the wheel.
Claims9
Classifying wheel for an air classifier equipped with a rotating classifying wheel through which the classifying air flows from outside to the inside against its centrifugal action, the wheel having blades which are arranged in a ring, extend parallel to the axis of rotation of the wheel and are positioned between a circular disc carrying the classifying wheel hub and an annular cover disc, the classifying wheel comprising:
- a) a circular disc (2), hub (3), cover disc (4), and blades (5) positioned between the discs and extending parallel to the axis of rotation (8) of the wheel,
- b) said discs, hub and blades being entirely a one piece construction of a sintered material;
- and
- c) the blades (5) being spaced circumferentially of each other to define axially extending elongated flow channels (6) formed by surfaces of the blades (5) which extend parallel to each other and in direction of the axis of rotation (8), the axial ends of the flow channels (6) forming arc-like surfaces in the areas adjacent the circular disc (2) and the cover disc (4).
Dependencies are inferred from the claim text.