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US 8,074,905 B2Granted
Method and device for comminuting and sorting polysilicon
AssigneeWacker Chemie AG
InventorsMarcus Schaefer, Reiner Pech, Matthaeus Schantz
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Abstract
The invention relates to a device for comminuting and sorting polycrystalline silicon, comprising an instrument for feeding a coarse polysilicon fraction into a crushing system, the crushing system associated with a sorting system for classifying the polysilicon fraction, wherein the device is provided with a controller which allows variable adjustment of at least one crushing parameter in the crushing system and/or at least one sorting parameter in the sorting system.
Claims13
A method for comminuting and sorting polysilicon, comprising:
- feeding a fraction of coarse polysilicon into a crushing system having at least one adjustable crushing parameter;
- crushing the coarse polysilicon in the crushing system to form crushed polysilicon;
- sorting the crushed polysilicon by a sorting system having at least one adjustable sorting parameter,
- wherein the crushing system and the sorting system are linked to a controller which allows variable adjustment of at least one crushing parameter in the crushing system and at least one sorting parameter in the sorting system, in response to a measured parameter of at least one fraction of crushed polysilicon,
- and recovering at least one fraction of crushed polysilicon.
2 more elements
Dependencies are inferred from the claim text.