Drum Set with Step downward spiral

摘要

The whole Drum (1) STEP (3) of downward spiral Structure comprises a rotating Drum in which the set of downward spiral (2) and (6) of screen panels are made of polymeric material or Rubber compounds. Step (3) is maximum at the entrance and the minimum output to provide increased performance of screening.The maximum Step produces a low height of materials Speed increases and the minimum entry Step increases the height of the materials. The Spiral (2) may have a Startup Configuration simple, double or multiple. Screening Panels have Openings (6) of Predetermined size to screen the desired material.Step (3) decreases along the Drum so as to improve the performance of screening without affecting the retention time