OIL-SQUEEZING PRESS Russian patent published in 2000 - IPC

FIELD: food industry, applicable in oil-squeezing presses. SUBSTANCE: the oil-squeezing press has a cylinder made with oil outlet holes, the cylinder accommodates a screw conveyer and successively positioned zones of conveying, compression, and a primary element located on the boundary of the conveying and compression zones, in the point of separation of the liquid phase, in the form of a number of rings with outside diameters increasing in the direction of the outlet hole and square grooves, the square grooves are made along the primary element in the rings, and grooves at an angle of 45 dwg. to the horizontal are made on the ring with the maximum diameter; the screw conveyer in the zone of conveying and in the zone of compression has different thread pitches. EFFECT: intensified squeezing- out of oil and reduced percentage of oil in pressed cake. 2 dwg