Patent ID: 6331196
Filing Date: 2001-12-18
Classification: B01D,B04C

Abstract:
A co-current cyclone separator comprised of:(a) a cyclone housing having a cover;(b) a tangential inlet fitting for introducing a cyclone feed mixture, said cyclone feed mixture containing a fluid and suspended mechanical particles;(c) an axial exhaust nozzle for discharging said fluid; and(d) a dust-collecting bin for collecting said suspended mechanical particles,wherein said suspended mechanical particles are largely removed from said cyclone feed mixture and collected in said dust-collecting bin, thereby reducing the concentration of said suspended mechanical particles in said fluid discharged through said axial exhaust nozzle,and wherein said co-current cyclone separator has geometric parameters that are determined by the relationship: ##EQU4##whereinh=distance between said cover and the output end of said axial exhaust nozzle, in meters;D.sub.out =inlet diameter of said axial exhaust nozzle, in meters;.mu.=dynamic viscosity of said fluid, in Pa.multidot.s;S.sub.in =cross-sectional area of said tangential inlet fitting, in square meters;K=coefficient;.rho.=dust particle density, in kg/m.sup.3 ;D.sub.cycl =diameter of said cyclone housing near said tangential inlet fitting, in meters;d.sub.p =cut point, in microns;Q=volumetric flowrate of said cyclone feed mixture, in m.sup.3 /s,and wherein said fractional cleaning efficiency coefficient K is in the range between 5 and 250.