发明名称 |
Polysilicon particle classifying apparatus |
摘要 |
Apparatus for classifying high purity polysilicon particles includes a receptacle for holding the particles and a rotary member for feeding the particles from the receptacle. The rotary member defines at least a portion of a front wall of the receptacle and is supported for rotation about its generally horizontally oriented longitudinal axis. A motor drives rotation of the rotary member such that a longitudinal groove passes through the receptacle to pick up particles smaller than a predetermined size and dump the captured particles onto an inclined surface disposed generally forward of the receptacle. The particles slide downwardly acquiring a velocity according to their shape. A gap between a lower edge of the inclined surface and a first receiver is sized such that only particles having more than a predetermined velocity are capable of traversing the gap to the first receiver. The remaining particles fall through the gap and into a second receiver. The receptacle, inclined surface member and first receiver are constructed with contamination inhibiting material to inhibit contamination of the particles.
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申请公布号 |
US5791493(A) |
申请公布日期 |
1998.08.11 |
申请号 |
US19960686570 |
申请日期 |
1996.07.26 |
申请人 |
MEMC ELECTRONIC MATERIALS, INC. |
发明人 |
MEYER, JAMES R. |
分类号 |
B07B13/11;(IPC1-7):B07B1/28 |
主分类号 |
B07B13/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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