FIELD: production lines for separation of oil wastes containing water and mechanical impurities with use of successively installed hydrocyclones. SUBSTANCE: production line has storehouse of oil wastes, worm filer, receiving vessels, buffer vessels, hydrocyclones of the second and third stages of separation, vessel for oil-polluted mechanical impurities. Coarse fraction of mechanical impurities is separated from mixture at the first stage, water is separated at the second stage, fine fraction of oil-polluted mechanical impurities is separated at the third stage and returned to storehouse, or to special vessel. EFFECT: higher degree of separation of water-oil mixture with mechanical impurities into three components-mechanical impurities of coarse fraction, water and oil. 6 cl, 2 dwg
