Cyclone separator

Details Cyclone separator Cyclone separator

1987-03-02

1989-03-07

Sever, Frank

Liquid purification or separation

Tangential flow or centrifugal fluid action

209144, 209211, B01D 17038

Patent

active

048103829

DESCRIPTION:

BRIEF SUMMARY
Application 8511149 describes a cyclone separator which has an inlet portion having generally the form of a volume of revolution with a single inlet (preferably tangential, and preferably with an inwards spiralling feed channel such as an involute entry) for introducing feed to be separated into the cyclone separator and, adjacent to the inlet portion and substantially coaxial therewith, a generally axially symmetrical separation portion converging (preferably uninterruptedly) into a downstream portion. The inlet portion has an axial overflow outlet opposite the separation portion (i.e. in its end wall). In the cyclone separator, the following relationships (i)-(v) apply: where d.sub.1 is the diameter of the cyclone in the inlet portion where flow enters (but neglecting any feed channel), d.sub.i is twice the radius at which flow enters the cyclone (i.e. twice the minimum distance of the tangential component of inlet centreline from the axis), A.sub.i is the cross-sectional area of the inlet at entry to the cyclone in a plane parallel to the axis of the cyclone and perpendicular to the component of the inlet centreline not parallel to the cyclone axis, d.sub.2 is the diameter of the cyclone where the inlet portion joins the separation portion the point of junction being defined as being at the axial position z.sub.2 (measured away from the inlet plane) where the condition first applies that: ##EQU1## for all z>z.sub.2 where d is the cyclone diameter at z, d.sub.3 is the cyclone diameter where the separation portion joins the downstream section and is defined as the diameter at z.sub.3 where d/d.sub.3 .gtoreq.0.98 for all z.gtoreq.z.sub.3, d.sub.o is the minimum internal diameter of the axial overflow outlet, then: ##EQU2## i.e. ##EQU3##
The cyclone separator of application 8515264 has an inlet portion having generally the form of a volume of revolution with n inlets where n>1 (each inlet preferably tangential, and preferably with an inwards spiralling feed channel such as an involute entry) for introducing feed to be separated into the cyclone separator and, adjacent to the inlet portion and substantially coaxial therewith, a generally axially symmetrical separation portion converging (preferably uninterruptedly) into a downstream portion. Where the feed channels do not spiral inwards, or where they are not axially staggered, at least part of the generator of the inlet portion and/or of the separation portion is curved. The inlet portion has an axial overflow outlet opposite the separation portion (i.e. in its end surface) In the cyclone separator, the following relationships (i)-(v) apply: where d.sub.1 is the diameter of the cyclone inlet portion. where flow enters (but neglecting any feed channel), d.sub.ix is twice the radius at which flow enters the cyclone through the x-th inlet (i.e. twice the minimum distance of the tangential component of inlet centreline from the axis), and ##EQU4## A.sub.ix is the total cross-sectional area of the x-th inlet measured at entry to the cyclone in a plane parallel to the axis of the cyclone and perpendicular to the component of the inlet centreline not parallel to the cyclone axis, ##EQU5## d.sub.i is the diameter of the cyclone where the inlet portion joins the separation portion the point of junction being defined as being at the axial position z.sub.2 (measured away from the inlet plane where z=0) where the condition first applies that: ##EQU6## for all z>z.sub.2 where d is the cyclone diameter at z, z =0 being the position of the axial centroid of the inlets, d.sub.3 is the cyclone diameter where the separation portion joins the downstream section and is defined as the diameter at z.sub.3 where d/d.sub.3 >0.98 for all z>z.sub.3, d.sub.o is the minimum internal diameter of the axial overflow outlet, then: ##EQU7## i.e. ##EQU8##
In those cyclone separators in use, the major volumetric component is the continuous phase, with up to a few percent of less dense phase and with perhaps up to about 1 part per thousand by volume finely divided solids or oth

REFERENCES:
patent: 4097375 (1978-06-01), Molitor

Affiliated with

Also associated with

Rating

Cyclone separator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cyclone separator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cyclone separator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1666648