Fluidized bed reactor for producing polycrystalline silicon granules and method for the assembly of such a fluidized bed reactor

• Main Authors: WECKESSER DIRK, FORSTPOINTNER GERHARD, HERTLEIN HARALD
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOUNDS THEREOF; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention concerns a fluidized bed reactor for producing polycrystalline silicon granules and a method for the assembly of such a fluidized bed reactor, comprising the following steps in the sequence given: setting up a baseplate (4) and connecting it to gas supply lines for fluidizing gas and reaction gas and a product take-off line (20); fitting the baseplate (4) with at least one fluidizing nozzle (6) and with at least one reaction gas nozzle (5); inserting a lower reactor pipe seal (7); setting up a reactor pipe (8) with a heater (10), electrodes (11) and insulators (12, 13) on the lower reactor pipe seal (7); positioning the reactor section (1) over the reactor tube (8); setting up an upper reactor pipe mounting (14) with an upper reactor pipe seal (15); assembling the reactor head (16); assembling the seed supplying device (17); assembling the flue-gas pipeline (18). 本发明的主题是制备多晶硅颗粒的流化床反应器以及组装这种流化床反应器的方法。所述方法包括按照以下所述顺序的多个步骤：构建底板(4)并连接至用于流化气体和反应气体的气体供应管线和产物排出管线(20)；使底板(4)配置至少个流化喷嘴(6)和至少个反应气体喷嘴(5)；插入底部