Hereby described is the mechanism, performance and structure of a modern drum screen rack, which is an integrated unit with functions of the fine and coarse screen racks, the conveyor and the press.

ITo counter that the multi sets of the fixed grille by arrangement in parallel is installed at the inlet of large-sized pumping station, the project investment is large, the equipment utilization ratio is not so high, so it is recommended to use portable grille remover.

In order to avoid the phenomenon that agglomerate floaters leak through double screen cleaner and enter catchment well,the technical renovation of the double screen cleaner was carried out.