PROBLEM TO BE SOLVED: To provide a granular matter separator easily operable by a small and simple structure, superior in handleability, separation certainty and operational stability, capable of surely separating even a separation object strongly stuck to a recovery aiming granular matter in a short time by frictional force and impact force, superior in efficiency of separation by high yield, wide in a selection width of a granular mixture, and capable of stably and surely separating the silver skin and fine powder from a pulverized coffee bean, by recovering the recovery aiming granular matter by surely separating the separation object from the granular mixture mixedly existing in the recovery aiming granular matter and the separation object different in specific gravity and a grain diameter.SOLUTION: The granular matter separator comprises a vessel part for storing the granular mixture, a rocking mechanism part for rocking the granular mixture inside the vessel part by reciprocating the vessel part at least in the vertical direction or rotatably moving the vessel part along a loop-shaped locus, a driving part for driving the rocking mechanism part, a suction mechanism part connected to a vessel part upper part and having an upper suction part for sucking the vessel part inside and a gas introducing part formed in a lower part of the vessel part.COPYRIGHT: (C)2014,JPO&INPIT【課題】小型で簡素な構造で手軽に操作でき、比重や粒径が異なる回収目的粒状物と分離対象物が混在する粒状混合物から分離対象物を確実に分離して回収目的粒状物を回収でき、取扱い性、分離の確実性、動作安定性に優れ、回収目的粒状物に強く付着した分離対象物も摩擦力や衝撃力で短時間で確実に分離でき、高歩留まりで分離の効率性に優れ、粒状混合物の選択の幅が広く、特に、粉砕コーヒー豆からシルバースキンや微粉を安定して確実に分離できる粒状物分離機の提供。【解決手段】粒状混合物を収容する容器部と、容器部を少なくとも上下方向に往復運動或いはループ状の軌跡に沿って回転移動させて容器部の内部で粒状混合物を揺動させる揺動機構部と、揺動機構部を駆動する駆動部と、容器部上部に接続され容器部内を吸引する上部吸引部を有する吸引機構部と、容器部の下部に形設された気体導入部を備える。【選択図】図1
