| 摘要 |
PURPOSE:To selection-assort a large quantity of dust in plural kinds without dispersing the dust by utilizing a suction force and exhaust wind power at the same time, in each kind, with high efficiency, safely, and in sanitary state. CONSTITUTION:At the trunk outer peripheral part of a drum body 1 which is constituted so that the upper surface side of the trunk peripheral part is formed to an opened port part 1a over a necessary area and the under surface side is formed to a shielded part 1b over a necessary area, a hurdle shaped rotary body 1c is fitting-arranged in rotatable manner at a specified speed, and a suction duct 1d is connected at one side part of the drum body 1 so that the necessary suction force (negative pressure force) always acts onto the opened port part 1a of the drum body 1. |
