Air separator with spiral staves
AssigneeCrown Iron Works Company
InventorDarcy Moses
Life of this patent
Estimating the term…
Abstract
Apparatus (10) for separating intermixed particulate materials. The apparatus (10) includes a housing (12) having a coaxial core (14) disposed therewithin to define an annular space (24) between the core (14) and the wall of the housing (12). A recirculator (46) is provided to provide gas to the housing (12) for cyclonic flow within the annular space (24). The intermixed particulate materials are introduced into the housing (12) and permitted to fall, under the influence of gravity, into the annular space (24) where separation is effected by interaction of the upwardly spiralling gas with the downwardly-passing, intermixed particulate materials.
Claims10
Apparatus for separating intermixed particulate materials of two different weights, wherein some of the particulate material of both weights is adhered to each other, comprising:
- (a) a generally cylindrical, vertically-oriented housing;
- (b) a generally cylindrical core, substantially coaxial with said housing, received within said housing to define a generally annular space, said core having upper and lower ends;
- (c) a plurality of generally radially extending staves extending across said generally annular space and between said core and a wall defining said housing, said staves arranged in a generally spiralling array;
- (d) means, intermediate said upper and lower ends of said core, for introducing a gas flow tangentially into said generally annular space;
- and
- (e) means for depositing the intermixed particulate material into said generally annular space proximate said upper end of said core;
- (f) wherein particulate material of the two different weights passing through said generally annular space is contacted by said staves to effect separation of the adhered particulate material;
- and
- (g) wherein the gas flow passes spirally upward within the generally annular space at a speed wherein heavier particulate material particles continue downward passage, under the influence of gravity, and lighter particulate material particles are blown upwardly by the gas flow.
A system for separating intermixed particulate materials of two different weights, wherein some of the particulate material of both weights is adhered to each other, comprising:
- (a) a generally cylindrical, vertically-oriented housing;
- (b) a generally cylindrical core, substantially coaxial with said housing, received within said housing to define a generally annular space, said core having upper and lower ends;
- (c) a plurality of generally radially extending staves extending across said generally annular space and between said core and a wall defining said housing, said staves arranged in a generally spiralling array;
- (d) means, intermediate said upper and lower ends of said core, for introducing a gas flow tangentially into said generally annular space;
- (e) means for depositing the intermixed particulate material into said generally annular space proximate said upper end of said core;
- and
- (f) gas recirculation means communicating with said housing proximate said upper and lower ends thereof;
- (g) wherein particulate material of the two different weights passing through said generally annular space is contacted by said staves to effect separation of the adhered particulate material;
- and
- (h) wherein the gas flow passes spirally upward within the generally annular space at a speed wherein heavier particulate material particles continue downward passage, under the influence of gravity, and lighter particulate material particles are blown upwardly by the gas flow.
Dependencies are inferred from the claim text.