ROTATING PARTICLE SEPARATOR WITH NON-PARALLEL SEPARATING DUCTS, AND A SEPARATING UNIT

摘要

The invention relates to a separating body which can be set into rotation to separate solid or liquid particles of micron or sub-micron size from a fluid, wherein said body consists of a large number of separating ducts with singly connected walls over a substantial part of the axial length, characterized in that walls of at least one of the separating ducts are not parallel to the axis of rotation and that the tangent of the angle between the tangent planes of the walls of the separating duct and the axis of rotation designated with tan alpha , the radial width of the separating duct designated with d, the length of the separating duct designated with L and the rotation speed of the separating body designated with OMEGA are chosen in mutual dependence in a manner such that the dimensionless number ( OMEGA Ld tan alpha )/v is located over a substantial part of the separating duct in the range up to 192, wherein v is the kinematic viscosity of the fluid. The inventio further relates to a separating unit provided with at least two separating bodies.