Drum Screening Station
Drum screen consists of motor, decelerator, rotordrive, chassis, seal cap, inlet and outlet. Material feeds into the drum, is lifted up by the rotation and aerated as it falls back down. This action is repeated with each revolution along the length of the drum. The finer material passes through the screen openings while the larger material tumbles towards its eventual exit at the rear of the drum.
drum screen
Doppstadt SST screening stations are developed especially for plant construction. They enable the separation of the material in two or more screening fractions thanks to a choice of equipment. Due to their large drum diameter (2,500 mm) they are frequently used in the field of household rubbish and industrial waste recycling and for building construction waste screening.
he basic structure of the machine frame is a profile steel tube structure onto which the various attachments for drive, rollers, protective doors and chutes are mounted. 2 large-surface protective doors are swivel-mounted on each of the long sides. When open, the drum can be lifted out from the side (for instance to replace the drum). To reduce dust and noise, the entire drum area is enclosed on top with screw-on cover plates. The roof area is equipped with pipe connection pieces and flange connections so that a dedusting facility can be connected. The basic frame includes all material guiding panels and chutes, both in the drum entrance and exit areas as well as in the fine grain collection area. The front-side material chutes are equipped with rubber inserts to minimize noise and wear.