APPARATUS AND METHOD FOR CLASSIFYING AND DEDUSTING GRANULAR POLYSILICON

• Main Authors: ENGGRUBER, ROBERT, BRIXEL, MARTIN, FRICKE, MICHAEL, HAUSWIRTH, RAINER
• Format: Patent
• Language: English; French
• Published: 14.05.2019
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; SEPARATING SOLIDS FROM SOLIDS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING

The invention relates to a method for classifying and dedusting granular polysilicon, wherein the granular polysilicon is fed into a screening plant, divided into two or more fractions by means of one or more screen surfaces, wherein a throwing motion of the granular polysilicon in the screening pla...