The present invention enables problem-free recovery of filtered objects, even when used with objects to be strained that have low water content and high adhesive properties, such as sweet potatoes that are softened by heating with superheated steam. The present invention includes: a covering body that is supported so as to be rotatable around the central axis thereof, has a vertical inner peripheral surface that has a circular cross-section, and is separated by an appropriate interval from and surrounds the perimeter of a straining vessel a scraping member that is at a prescribed position along the inner peripheral surface of the covering body and that, as the covering body rotates, is for scraping off filtered objects that adhere to the inner peripheral surface and a rotation driving mechanism that is for rotating the straining vessel and the covering body. The present invention is thereby configured such that, when the straining vessel rotates, filtered objects that adhere to the inner peripheral surface of the covering body after being expelled from filtering through-holes are scraped off at the prescribed position along the circumference of the inner peripheral surface.提供一種即使使用於經過過熱蒸氣加熱軟化處理之如蕃薯(地瓜)等水分少而附著性高的過濾對象物,也能毫無困難的回收過濾物之過濾裝置及方法。為達成上述目的,此過濾裝置包括:一圍覆體,具有縱型且斷面圓型的內周面,隔以適當間隔圍繞在上述網濾容器的周圍,且可旋轉自如地支持於其中心軸的周圍;一刮取構件,設於沿上述圍覆體的上述內周面所定位置,而隨著上述圍覆體之旋轉能刮落附著在上述內周面的過濾物;一旋轉驅動機構,用以驅動上述網濾容器及上述圍覆體;藉此構成,而於上述有底圓筒狀網濾容器旋轉時,能將從上述過濾用透孔排出後附著於上述圓筒狀圍覆體內周面之過濾物刮落於沿著上述內周面的圓周上的上述所定位置。3‧‧‧網濾容器3a‧‧‧周側板3b‧‧‧周緣板3c‧‧‧托架3d‧‧‧透孔4‧‧‧下側軸9‧‧‧上側軸(投入管)20‧‧‧回收用承接盤22‧‧‧內周面刮取構件22a‧‧‧刮取刀22b‧‧‧刮取刀連桿23‧‧‧外周面刮取構件23a‧‧‧刮取刀23b‧‧‧刮取刀連桿24‧‧‧旋轉推壓件24a‧‧‧斷面弧狀引導曲面25‧‧‧旋轉推壓件25a‧‧‧斷面弧狀引導曲面25b‧‧‧引導溝26‧‧‧圍覆體27‧‧‧蓋板28‧‧‧連結桿32‧‧‧伺服馬達(M4)
