Abstract: Accurate and repeatable portioning of polycrystalline silicon chunks without excessive generation of fines is accomplished by separating silicon chunks into a multiplicity of weighed portions and combining at least four portions which together closely match a target weight into a plastic shipment bag which is then closed.

Abstract: Reduction of contamination and the proportion of fines fractions in the packaging of rod form polysilicon is achieved by directly filling a plastic bag with polysilicon from a cleaning bowl by a rotating motion which causes polysilicon chunks to slide into the bag.

Abstract: Reduction of contamination and the proportion of fines fractions in the packaging of rod form polysilicon is achieved by directly filling a plastic bag with polysilicon from a cleaning bowl by a rotating motion which causes polysilicon chunks to slide into the bag.

Abstract: A vibrating conveyor having a conveyor chute which has a conveyor surface consisting of silicon, wherein plastic elements are provided between the base body of the conveyor chute and the conveyor surface. The vibrating conveyor is suitable for use in a method for conveying silicon chunks.

Abstract: The invention relates to a process for packaging polycrystalline silicon in the form of chunks, including the following steps: (a) providing polycrystalline silicon in a metering system; (b) filling polycrystalline silicon from the metering system, which removes fines by use of screening, into a plastic bag arranged below the metering system. The weight of the plastic bag with the polycrystalline silicon introduced is determined during the filling step and the filling step is ended after the attainment of a target weight. 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 over the entire filling step.

Abstract: A vibrating conveyor having a conveyor chute which has a conveyor surface consisting of silicon, wherein plastic elements are provided between the base body of the conveyor chute and the conveyor surface. The vibrating conveyor is suitable for use in a method for conveying silicon chunks.

Abstract: Accurate and repeatable portioning of polycrystalline silicon chunks without excessive generation of fines is accomplished by separating silicon chunks into a multiplicity of weighed portions and combining at least four portions which together closely match a target weight into a plastic shipment bag which is then closed.

Abstract: The invention relates to a process for packaging polycrystalline silicon in the form of chunks, including the following steps: (a) providing polycrystalline silicon in a metering system; (b) filling polycrystalline silicon from the metering system, which removes fines by use of screening, into a plastic bag arranged below the metering system. The weight of the plastic bag with the polycrystalline silicon introduced is determined during the filling step and the filling step is ended after the attainment of a target weight. 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 over the entire filling step.