Double press screw

Presses – With additional treatment of material – Cutting – breaking – piercing – or comminuting

Patent

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Details

100117, 100128, 100146, 366147, 366301, B30B 1534, B30B 916

Patent

active

053335562

ABSTRACT:
A double-screw press for separating a liquid from a two-phase solid-liquid material includes a hollow barrel and two screws disposed in the barrel. The barrel comprises a plurality of detachable barrel plates and a plurality of spacers disposed between the barrel plates and cooperating with the barrel plates in defining slits. The screws are arranged side by side with a gap defined therebetween, and are rotated by a motor to move a material, which has been charged into the barrel, efficiently from an upstream end to a downstream end of the barrel. The barrel plates and the screws have respective passages connected to cooling water sources, which supply cooling water to keep the temperature in the screws and the barrel at a desired level. The charged material is crushed and mixed in the gap between the screws, and oil is expressed from the material when it is compressed in the barrel. The expressed oil is discharged through the slits and collected in a container.

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