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How the Screw Press Works

Operation of screw press is quite a simple exercise.

As with all dewatering systems, the wet slurry needs to be stored in a suitable mixed vessel to ensure that a consistant slurry is delivered to the screw press. The speed of teh transfer pump is set to suit the hydraulic and solids load.

Prior to entry to the screw press, the slurry is flocculated in-line with a polyelectrolyte to enhance the dewatering process
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screw press process
The HUBER Inclined Screw press operation
The machine consists of a main case, internal screw (rotating at <1.5rpm), spray bar and cylindrical wedgewire/mesh drum. As the sludge enters the unit the sludge is conveyed by the screw through the drum length whilst the filtrate is drained through the mesh. The drum consists of variable apertures and profiles, and together with a reducing screw pitch and increased shaft diameter, pressure is gradually applied to the sludge mass.

The ultimate high pressure zone is at the outlet section where an adjustable pneumatic cone is configured to achieve maximum sludge dryness. The cake is discharged through the cone into a bin or conveyor system and the filtrate collects within the main case and is discharged via gravity to the filtrate outlet flange.

screw press diagramPlease view the videos in the tab below for more details on how the system operates

Videos

Hydroflux Huber Q-PRESS® Screw Press
Hydroflux Huber – Transportable ROTAMAT® Screw Press System – RoS 3Q
Hydroflux Huber – ROTAMAT® Screw Press System – RoS 3Q
Hydroflux Huber – ROTAMAT® Screw Press – How it Works

Hydroflux product solutions are fully equipped, ready for operation. This complete offer allows clients to consider the best technical solutions available via the most efficient process