Patent ID: 6177021
Filing Date: 2001-01-23
Classification: B04B

Abstract:
A method for clearing product from a centrifuge basket of a discontinuously running centrifuge, said basket comprising a peripheral wall and a bottom wall, said bottom wall closing one end of the peripheral wall, said peripheral wall defining a basket sieve and the entire axial length of the centrifuge length of the centrifuge basket, wherein a scraper blade, having a cutting edge, is projecting into the centrifuge basket, said method comprising:lowering the scraper blade from an initial position, in axial direction of the centrifuge basket, until a starting position is reached where the scraper blade nearly touches the bottom wall of the centrifuge basket;pivoting said scraper blade from said starting position towards the peripheral wall, wherein the cutting edge of said scraper blade lies in a direction opposite to a rotation direction of the basket, and wherein the scraper blade contacts the product over approximately the entire length of the centrifuge basket;scraping the product off in layers as the centrifuge basket rotates at a clearing speed;ceasing the pivoting of the scraper blade when its cutting edge reaches an advance limit position prior to touching the peripheral wall of the centrifuge basket;pivoting the scraper blade away from the peripheral wall back into its starting position; andraising the scraper blade in axial direction back into its initial position.