公开(公告)号：US20180185882A1

公开(公告)日：2018-07-05

申请号：US15737728

申请日：2016-03-15

Applicant: SILTRONIC AG ,  WACKER CHEMIE AG

Inventor： Andreas BERGMANN ,  Thomas BUSCHHARDT ,  Simon EHRENSCHWENDTNER ,  Christian FRAUNHOFER

IPC: B07B13/07 ,  B07B1/12

CPC classification number: B07B13/07 ,  B07B1/12

Abstract: Polysilicon chunks or granules are classified into size fractions using a mechanical screen having a profiled surface having peaks and valleys, and terminating in widening slots through which a polysilicon size fraction falls. The device is effective and the slots are resistant to clogging.

公开(公告)号：US20170001868A1

公开(公告)日：2017-01-05

申请号：US15113332

申请日：2015-01-16

Applicant: Wacker Chemie AG

Inventor： Stefan FAERBER ,  Andreas BERGMANN ,  Reiner PECH ,  Siegfried RIESS

IPC: C01B33/035 ,  C30B15/36

CPC classification number: C01B33/035 ,  C30B15/36

Abstract: Production of highly pure comminuted polycrystalline silicon from polycrystalline silicon rods produced by the Siemens process is facilitated by removal of graphite residues from the electrode ends of the rods by removing the contaminated end portions by means of mechanical impulses.

Abstract translation: 通过西门子方法生产的来自多晶硅棒的高纯度粉碎多晶硅的生产通过通过机械冲击去除污染的端部而从棒的电极端部除去石墨残留物而得到促进。