Screw press comprises permeable sleeve housing two coaxial screws separated by with screw thread, blade projects from sleeve internal surface in zone occupied by bush
The screw press comprises a permeable sleeve (2) in which two coaxial screws (3) are housed. The screws are aligned along a common axis and separated from each other by a bush with an external diameter less than that of the sleeve. Each bush has a screw thread (4A) with a pitch equal to or different to that of the pressure screw. A blade (5) projects from the sleeve internal surface in the zone occupied by the bush.
