METHOD AND APPARATUS FOR CRYOGENIC GRINDING

摘要

223-P-CA-02390 The production rate of a conventional cryogenic grinding system imcorporating an impact mill may he increased by (a) providing means to allow at least 70% of the embrittled material entering the mill to leave the mill before it passes the inlet; and (b) providing means to restrict the flow of the cold gas through the impact mill. The product leaving the impact mill is screened and any oversize is preferably recycled to the impact mill.