Drum Screen PWL CenterFlow CFS in comination with the screw press PWL Helixpress HXP HD26 Apr 2017
The CenterFlow Drum Screen CFS is made of stainless steel designed for liquid-solid-separation in the field of process and waste water of industries or WWTPs.
Within the headbox the flowing-in medium is homogenized and the flow velocity reduced. The headbox design guarantees for the tangential approaching flow of the inner drum surface necessary for an optimal separation process.
The solids which are larger that the drum‘s screen openings are retained. the discharge flites which are helically mounted to the inner drum provide for a solids transport to the discharge at the end of the drum. Even hugh amounts of solids can be separated by the drum screen CFS.
The cleaned process waters run through the drum screen downwards and are returned to the water cycle resp. into the channel.
Rejects, which are separated from the process water by PWL drum screens of type PWL CenterFlow, are dewatered and compacted by the PWL Helixpress. The PWL Helixpress meets the heterogeneity and also the drainability of the various rejects by the dynamically working press zone.
Aas a function of the required pressing force, the press zone is pneumatically controlled. As a result, consistently low residual moisture content in the pressed reject can be ensured. The narrow drainage sieves of the PWL Helixpress HXP HD also ensure very high retention rates for fines.
The residual moisture content is less than 10% and the volume of rejects to be disposed of has halved due to the good compaction.