| 摘要 |
PURPOSE:To allow the garbage treatment with an excellent dehydrating and separating effect by forming a screw for delivering garbage in such a manner that the upper and lower spacings of the vane parts of the screw narrow gradually toward the upper side and the diameter of the barrel part of this screw increases gradually toward the upper part side. CONSTITUTION:The screw 3 is so formed that the upper and lower spacings of the vane parts 32 thereof narrow toward the upper part side. The screw is so formed that the diameter of the barrel part 32 increases toward the upper part side, by which the hydrous refuse is compressed and efficiently dehydrated as the refuse is sent toward the upper part of a screen 4. Further, plural pieces of fine plate materials 42 arriving from the prescribed points in the vertical direction of the inside wall of the cylindrical screen 4 at the top end are mounted and on the other hand, the lower vane parts 311 are brought into sliding contact with the inside wall in the lower part of the screen 4. The vane parts 312 are so formed to the diameter smaller than the diameter of the lower vane parts 311 so as to make sliding contact with the fine plate materials 42. While the garbage prevented from rotating by the fine plate materials 42 is compressed along the fine plate materials 42, the garbage is efficiently delivered to the upper part side. |
