A METHOD AND DEVICE FOR THE SEPARATION OF PARTICLES

摘要

The invention relates to a method of in a liquid separating a mixture of particles that within chosen limits have different physical property values, wherein the particles to be separated are supplied via a feeder to a screen upon which a layer of facilitating particles is disposed, the size of the facilitating particles being too large to fit through the openings in the screen, wherein particles to be separated are passed through the layer of facilitating particles and through the openings in the screen and collected under the screen, the density of the particles being greater than that of the liquid, and wherein a repetitive vertical movement is provided between the particles and the liquid, respectively. The invention is characterized in that all particles to be separated are passed through the layer of facilitating particles and the screen, and wherein the particles having a high density will move faster through the layer of facilitating particles and the screen than the particles having a lower density. The invention also relates to a device for carrying out such a method.