PROBLEM TO BE SOLVED: To provide a freeze concentration device achieving further enhancement of concentration rate and recovery rate of a concentrated liquid while achieving downsizing and reducing cost by further simplifying a structure of device itself, and an ice pressing head suitably for the freeze concentration device.SOLUTION: There is provided an ice pressing head 30 having a plurality of ice pressing passages 32 arranged radially in a substrate 31, in which an inside wall 33 in the ice pressing passage 32 is arranged at a state with a tilt from downside to upside of the ice pressing passage 32 in an oblique outside direction, a lower end part side of the inside wall 33 is supported by a rotation pin 34, an upper end part side of the inside wall 33 is energized in an outside direction by an energization means, the outside wall of a plurality of the ice pressing passages 32 is formed by a screen 36, and a recovery part 37 for recovering a liquid included in ice particles is equipped at outside of the plurality of ice pressing passages 32. The freeze concentration device 10 contains an ice making part 12 and the ice pressing head 30.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】 装置自体の構成を更に簡素化することによって小型化・低コスト化を図りつつ、濃縮液の濃縮率及び回収率の更なる向上が図られた凍結濃縮装置、及び当該凍結濃縮装置に好適な氷圧搾ヘッドを提供する。【解決手段】 本発明は基体31に放射状に配設された複数の氷圧搾通路32を備える氷圧搾ヘッド30であって、氷圧搾通路32の内側壁33が、氷圧搾通路32の下方から上方へ向かって斜め外側方向に傾斜した状態で設けられ、内側壁33の下端部側が回動ピン34によって軸支され、内側壁33の上端部側が、付勢手段によって外側方向に付勢され、複数の氷圧搾通路32の外側壁がスクリーン36で形成され、複数の氷圧搾通路32の外側に、氷粒子に含まれる液体を回収するための回収部37を備えることを特徴とする。また、本発明の凍結濃縮装置10は、製氷部12と、上記の氷圧搾ヘッド30とを含んで成る。【選択図】 図2
