Method for packaging polycrystalline silicon

摘要

A method is disclosed for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, which has a freely suspended energy absorber consisting of a nonmetallic low-contamination material, wherein the plastic bag is pulled over the energy absorber and filled with polycrystalline silicon, and the plastic bag is lowered downward during the filling, so that the silicon slides into the plastic bag. Also disclosed is a method for packaging polycrystalline silicon, in which a plastic bag is filled with polycrystalline silicon by means of a filling device, wherein a storage container has an opening through which it is filled with silicon, the plastic bag being pulled over the storage container after filling the storage container with silicon and the storage container subsequently being rotated so that the silicon slides out of the storage container into the plastic bag.

主权项

1. A method for packaging polycrystalline silicon, said method comprising:
providing a filling device comprising a freely suspended energy absorber comprising a nonmetallic low-contamination material; placing a plastic bag over the energy absorber; filling the plastic bag with polycrystalline silicon by use of the filling device; and lowering the plastic bag downward during the filling, so that the polycrystalline silicon slides into the plastic bag; wherein a cross-section of the plastic bag is reduced by use of a suitable device before the start of its lowering movement, and is increased gradually during the filling or after the filling, in order to achieve controlled filling of the plastic bag with polycrystalline silicon chunks.