A PERCOLATION UNIT FOR THE EXTRACTION OF HIGH QUALITY OIL FROM OLIVE AND OLIVE LIKE OILY FRUITS

摘要

This invention is about an extraction unit which is designed to obtain/extract oil continuously from the prepared paste of olive and olive like oily fruits. The separation yield is improved by means of the principles of adherence of liquids to the solid surfaces, surface tension differences of liquids (oil and water), and capillary effect together. Multiples of rotating percolating cylinders are used to percolate (let the free oil adhere to the surface) through the paste continuously. By doing so, the separation yield is increased by increasing the percolation surface of the whole system. Use of rotating cylinders for percolation of oil, the capillary effect of the narrow gap/distance between the rotating cylinders and performing all these processes (both mixing and extraction) in the mixing tank are the main ideas of this invention. The cylinder surfaces, covered by the free oil percolated from the paste via contact surfaces and also due to the capillary effect of narrow passages in between, are cleaned by scrapers at the outer sides of the tank and thus the free oil of paste is extracted as high quality oil.