| 摘要 |
A cutting mill for crushing broken polycrystalline needle-shaped silicon material, which contains particles that have an aspect ratio of AI with 5<AI ≦̸30, and/or broken Si wafer consisting of laminar particles, wherein the cutting mill has an interior space that is lined with silicon and/or plastic, wherein the cutting mill has a rotational body configured as a multi-sided column, wherein said rotational body, in the regions facing the interior space of the cutting mill, is lined with silicon or features silicon, and wherein blades which run parallel with the longitudinal edges of the rotational body and are disposed in the rotational area of the rotational body, are arranged in the interior space of the cutting mill, and are adjustable with respect to the rotational body. |
