Apparatus and method for silicon powder management

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United States of America Patent

PATENT NO 9440262
APP PUB NO 20160129478A1
SERIAL NO

14536496

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Abstract

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Methods and apparatus for separating polysilicon powder from a mixture of granular polysilicon and polysilicon powder are disclosed. The method includes tumbling the polysilicon material in a tumbling device. The tumbling device includes a tumbler drum having one or more lifting vanes spaced apart from one another and extending longitudinally along an interior surface of the tumbler drum. The lifting vanes facilitate separation of polysilicon powder and granules as the tumbler drum is rotated about its longitudinal axis of rotation.

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Patent Owner(s)

Patent OwnerAddress
REC SILICON INC3322 ROAD N NE MOSES LAKE WA 98837

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Geertsen, Robert J Pasco, US 18 48

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