Patent ID: 6036871
Filing Date: 2000-03-14
Classification: B03B,B03D,B04C

Abstract:
A method for separating heavier from lighter parts of aqueous slurries by means of centrifugal force effects, in which under the influence of a pressure gradient existing between an inlet and outlet of a cyclone separating chamber the slurry is caused to execute a circulating movement in said cyclone separating chamber so that the lighter parts separate from the heavier parts of the slurry, and the heavier and lighter parts are separately discharged from the separating chamber, wherein said pressure gradient is produced by a pressure boosting stage substantially immediately prior to the introduction of the slurry into said cyclone separating chamber, and wherein, for increasing the pressure, the slurry is accelerated upstream of the location of its introduction into said cyclone separating chamber from a radially inward location to a radially outward location, decelerated in the vicinity of said radially outward location and deflected to flow in a direction towards said location of introduction.