METHOD AND APPARATUS FOR EXTRACTING PLANT OILS Russian patent published in 2001 - IPC

FIELD: plant oil production. SUBSTANCE: method involves combining repeated staged spraying of material to be extracted with mycelium in handling device and single one-stage spraying of oil cake with overheated solvent vapor condensate; supplying solvent vapor to upper part of column; increasing temperature of oil cake in upper part of column in the direction of column exit end and forming gas seal of oil cake. Charging column of apparatus is made in the form of hopper and shaft with widened lower part and distributing chamber for supplying air-gas mixture. Handling device is made in the form of endless filtering belt with mycelium collector. Feather-like auger for forming gas seal is positioned in upper part of extraction column and conical mixer is mounted in lower part of it. EFFECT: increased efficiency by reduced content of residual solvent in oil cake, reduced power consumption and improved ecology control. 3 cl, 1 dwg