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US 2003/0075486 A1Published application
Classifier for the classification of granular material
AssigneeKHD Humboldt Wedag GmbH
InventorsAlbert Sussegger, Alexander Hagedorn, Immo Behrndt
Life of this patent
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Abstract
A static V-classifier or cascade classifier having a stairway cascade (13) and oppositely arranged classifying flues (15) with upward extending and adjustable guide vanes (21) at their upper ends for altering the cut point of the classifier by controlling the classifying gas velocity in the several classifying ducts lying between the classifying flues (15).
Claims10
A classifier for the classification of granular material comprising
- a classifier housing (10) having a V-shape in vertical section with first and second legs and including
- a stairway cascade (13) in said first leg, said stairway cascade (13) lying obliquely at an angle departing from the vertical and said stairway cascade being permeable for passage for classifying gas there through,
- a classifying gas intake duct in said first leg directing classifying gas to said stairway cascade and
- classifying flues (15) lying one above the other and obliquely downwardly inclined in louver fashion in said second leg,
- said classifying flues (15) defining classifying ducts therebetween and being positioned to define a classifying zone (14) between said stairway cascade (13) and said classifying flues (15),
- a feed inlet opening (16) for a classification feed on the top of said housing (10) and above said classifying zone (14),
- an oversize fraction discharge openings (18) on the bottom of said housing (10) below said classifying zone (14) for the discharge of an oversize fraction of said granular material and
- upwardly extending guide vanes (21) at the upper end of said classifying flues (15), said guide vanes being adjustable to control the velocity of said classifying gas passing through said classifying ducts.
5 more elements
Dependencies are inferred from the claim text.