Gas separation – With guide means effecting removal of constituent layer out... – Spiral guide
Patent
1975-02-20
1976-10-26
Lutter, Frank W.
Gas separation
With guide means effecting removal of constituent layer out...
Spiral guide
55457, 55459C, B01D 4512
Patent
active
039881326
ABSTRACT:
This invention relates to a device for separating particles from a gas stream which consists essentially of a cylindrical vessel having a feed pipe connected thereto and intersecting the axis of said vessel; an axial discharge pipe connected to and protruding into said vessel, a sleeve located with some clearance around said discharge pipe and having fixed thereto a plurality of helicoidal first impeller blades so as to cause the gas feed to rotate; means located within said vessel and below said blades to discharge said particles; said device being further characterized by a plurality of spiral second impeller blades extending perpendicularly below and above, and being fixed to, said helicoidal first impeller blades, such that one vertical edge of each of said spiral blades touches said sleeve along, essentially, a straight vertical line, that the other, essentially straight, vertical edge of each spiral blade is located at a distance from the surface of said sleeve which is between 0.33 and 0.90 of the distance between said sleeve and the inner wall of said vessel and that said spiral blades extend to beyond the lower edges of said helicoidal blades.
REFERENCES:
patent: 1066704 (1913-07-01), Brassert
patent: 1573135 (1926-02-01), Bourne et al.
patent: 2582423 (1952-01-01), Foley
patent: 2849079 (1958-08-01), Evans
patent: 2918139 (1959-12-01), Silverman
patent: 3822533 (1974-07-01), Oranje
Lacey David L.
Lutter Frank W.
Stamicarbon B.V.
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