FLUIDIZED BED REACTOR WITH PINCHING FITTINGS FOR PRODUCING POLYSILICON GRANULATE, AND METHOD AND USE FOR SAME

Control of the flow of granular polysilicon granules is effected by employing an elastomeric pinch sleeve valve. The flow control by this method is especially useful for controlling the flow of silicon seed particles and granular polysilicon product in the fluidized bed method for producing polysili...

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Bibliographic Details
Main Authors FORSTPOINTNER, Gerhard, BAUMANN, Bernhard
Format Patent
LanguageEnglish
Published 04.04.2019
Subjects
ACTUATING-FLOATS
BLASTING
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COCKS
COMPOUNDS THEREOF
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
INORGANIC CHEMISTRY
LIGHTING
MECHANICAL ENGINEERING
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TAPS
THEIR RELEVANT APPARATUS
THERMAL INSULATION IN GENERAL
TRANSPORTING
VALVES
WEAPONS
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Summary:Control of the flow of granular polysilicon granules is effected by employing an elastomeric pinch sleeve valve. The flow control by this method is especially useful for controlling the flow of silicon seed particles and granular polysilicon product in the fluidized bed method for producing polysilicon. The flow may be stopped without gas leakage, and is suitable for use over long operating campaigns.
Bibliography:Application Number: US201716087416