PROBLEM TO BE SOLVED: To provide an extraction apparatus especially suitable for a large-size extraction tank, efficiently performing washing inside the extraction tank and a discharge of a raw material residue after extracting an extraction liquid in a state of tightly closing the extraction tank.SOLUTION: This extraction apparatus 2 includes: an extraction tank body 4 an upper lid 6 having a raw material inlet 6a and an extracting liquid inlet 6b a lower lid 8 having extraction liquid reception spaces and extraction liquid outlets 8a an extraction floor 10 having a fixed floor 10a formed with a discharge port 10b of the raw material residue, and filter floors 10c each installed swingably between "a horizontal position" of the same level as the fixed floor and "an inclined position" which is inclined a discharge machine 12 having blades 12b installed to a rotary shaft 12a, and discharging the raw material residue on the extraction floor 10 to the discharge port 10b.COPYRIGHT: (C)2012,JPO&INPIT【課題】抽出液を抽出した後の原料残滓の排出および抽出槽内部の洗浄を、抽出槽を密閉した状態で、効率よく行うことができる、特に大型の抽出槽に好適な、抽出装置を提供する。【解決手段】抽出装置2が、抽出槽本体4と、原料入口6aおよび抽出用液入口6bを有した上蓋6と、抽出液受空間および抽出液出口8aを有した下蓋8と、原料残渣の排出口10bの形成された固定床10aおよび固定床と同一面の「水平位置」と傾斜した「傾斜位置」の間を揺動作動自在に取付けられたフィルター床10cを有した抽出床10と、回転軸12aに取付けられ抽出床10上の原料残渣を排出口10bに排出する羽根12bを有した排出機12と、複数個の洗浄ノズルNを備えている。【選択図】図1
