SCREW-SEPARATOR FOR DEHYDRATION OF FIBROUS MATERIAL Russian patent published in 2014 - IPC A01C3/00 C02F11/12 

FIELD: agriculture.

SUBSTANCE: screw-separator consists of a shaft mounted in spring loaded supports movable relative to the housing, with ball bearings ensuring a tight contact without gaps of the outer surface of screw turns with a perforated bottom of the housing or with a perforated removable replaceable insert in the solid housing. In the interturn space of the screw an additional wiping blade is mounted. The additional blade with its one end is mounted on the shaft hub on the length of the interturn space of the screw and with the other free end it approaches directly to the perforated bottom or the insert and ends at a certain distance from the bottom or the insert. Between the free end of the additional blade and the bottom or the insert a technological gap is formed which is limited by the edges of the turns of the screw. The additional blade from the point of mounting to the shaft hub to its the free end is made in the form of a curved surface so that in the cross section of the press between the bottom or the insert the screw turns and the ends of the additional blade a curved wedge channel is formed. The channel has an inlet size which is much larger than the outlet size which is the technological gap between the free end of the additional blade and the bottom.

EFFECT: in such implementation the moisture is more fully separated from the separated mass of without clogging the holes of the perforation in obtaining less wet stiff fraction.

3 dwg