Method and apparatus for separating a heavier phase from a lighter phase in a material flow by centrifugal force

摘要

Phases of different densities are separated from each other in a vortex separator chamber. A primary flow to be cleaned drives a secondary vortex flow in the chamber. The primary flow is introduced into the chamber centrally between the chamber ends through at least one flow inlet channel or bed having an axial length shorter than an axial chamber length and a radial inlet depth such that the primary flow is adapted to the secondary vortex flow. For this purpose the primary flow is fanned-out so that it smoothly merges into the secondary vortex flow close to the inner surface of the chamber wall to avoid turbulent flows and thus losses of the primary flow energy are reduced. Cleaned gas is sucked out through immersion pipes reaching centrally into the chamber from opposite ends. Heavier particles are removed by centrifugal force and discharged through gaps in the end walls of the chamber and/or through at least one peeling slot in the axial cylindrical or spirally shaped chamber wall.