| 摘要 |
<p>An apparatus for treating constructive waste is provided to separate efficiently waste concrete mass containing external particles into pure concrete pieces and external particles. External particles(22) and concrete pieces(24), which are crushed by a crusher(20), are inputted into a cylindrical screen(30). The cylindrical screen has an opened inner space and screw thread-shaped projections formed on an inner surface thereof. A plurality of holes are formed between neighboring projections. The concrete pieces disposed on a valley between projections are discharged through the holes while the cylindrical screen is rotated. The external particles disposed on the valley are moved, and discharged through an opposite opening of the cylindrical screen.</p> |
