Patent ID: 9550587
Date: 2017-01-24
CPC Classifications: B65B

Claim:
1. A process for packaging polycrystalline silicon in the form of chunks, comprising the following steps: providing polycrystalline silicon in a metering system; filling polycrystalline silicon from the metering system, which removes fines by way of screening, into a plastic bag arranged below the metering system; wherein a weight of the plastic bag and the polycrystalline silicon is determined while the filling step occurs, and the filling step is ended after a target weight is reached; wherein a fall height of the polycrystalline silicon from the metering system into the plastic bag is kept at less than 450 mm by use of at least one clamp apparatus pressing the plastic bag from outside the plastic bag during at least a portion of the filling step; and wherein the clamp apparatus is configured such that the plastic bag is compressed during the filling step, as a result of which a cross-sectional opening of the plastic bag through which the polycrystalline silicone flows is at first reduced and then released in a controlled manner.