Screenings compactors and presses
The screenings collected by mechanical screen usually contain lots of water, which should removed somehow.
The spiral screens could be prepared with integrated compacting zone. This function is accomplished by screenings compactor in case of planar screens. It transfers the dewatered screenings to an elevated location (usually above a container), while the pressed out water is returned to the appropriate point of the wastewater treatment process.
The desired dry material content of the screenings can be achieved by means of presses providing various forces. The degree of dewatering could be up to 50 % with the use of presses.
