US 5,843,211 AGranted

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

OwnerErnst-August Bielefeldtinventor

Life of this patent

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Abstract

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.

Claims32

Dependent claims

A method for separating different material phases having different densities that can be separated from each other by centrifugal force in a separator housing having a central radial plane, comprising the following steps:

(a) feeding a primary flow containing said different material phases symmetrically to said central radial plane and tangentially into said separator housing for forming a primary fanned-out flow pattern that is fanning-out mirror-symmetrically to said central radial plane,
(b) generating in said housing with said primary flow a secondary flow mirror-symmetrically to said central radial plane by fanning-out said primary flow into said secondary flow, said secondary flow including two vortex secondary flow half portions (11) which together form a secondary fanned-out flow pattern flowing mirror-symmetrically away from said central radial plane along an inner surface of said separator housing, and
(c) mirror-symmetrically superimposing said primary fanned-out flow pattern on said secondary fanned-out flow pattern so that said primary flow moves in the same directions as said two vortex secondary flow half portions.

Dependencies are inferred from the claim text.

Facts

Application: 08/599,462Filed 22 Jan 1996
Priority: DE 195 02 202.525 Jan 1995
Granted: 1 Dec 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B01D 45/12
Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces: by centrifugal forces
B04C 3/06
Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two…:…
B04C 5/04
Construction of inlets by which the vortex flow is generated , e.g. tangential admission, the fluid flow being forced to follow a downward path…
B04C 5/081
Vortex chamber constructions: shapes or dimensions