Conveyors: fluid current – Fluid current conveyor outlet means – Deflector
Patent
1983-05-31
1985-07-16
Nase, Jeffrey V.
Conveyors: fluid current
Fluid current conveyor outlet means
Deflector
239650, 239518, 406195, 414293, B65G 6904
Patent
active
045293376
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
This invention relates to an apparatus for and a method of distributing particulate material. In one application of the invention the material is formed into a curtain that flows into a spray mixing vessel. In another the material may be divided into a number of separate streams.
According to the invention, there is provided an apparatus for distributing particulate material including an expansion chamber for receiving particulate material extrained in air and effecting a reduction in the speed of the air in which the particulate material is entrained, a feeder having a charging inlet which communicates with the expansion chamber and a discharge outlet duct, the discharge outlet duct having converging walls, a deflector to deflect particulate material received from the expansion chamber and the feeder, the deflector including a first conical spreader co-axially aligned with the discharge outlet duct and having walls which diverge away from the discharge outlet duct, a second conical spreader continguous with the diverging walls of the first conical spreader and having diverging walls of an angular inclination to the direction of flow of the particulate material greater than that of the first conical spreader so that, in use, the discharge of particulate material from the second conical spreader is in the form of a hollow cylindrical curtain of uniformly distributed particulate material.
According to the present invention, there is also provided an apparatus for distributing particulate material including an expansion chamber for receiving particulate material entrained in air and effecting a reduction in the speed of the air in which the particulate material is entrained, a feeder having a charging inlet which communicates with the expansion chamber and a discharge outlet duct, the discharge outlet duct having converging walls, a deflector to deflect particulate material received from the expansion chamber and the feeder, the deflector including a first conical spreader co-axially aligned with the discharge outlet duct and having walls which diverge away from the discharge outlet duct, a second conical spreader continguous with the diverging walls of the first conical spreader and having diverging walls of an angular inclination to the direction of flow of the particulate material greater than that of the first conical spreader so that, in use, the discharge of particulate material from the second conical spreader is in the form of a hollow cylindrical curtain of uniformly distributed particulate material which is received by baffle means that divides the material into streams in which the rates of flow have a predetermined relationship to each other.
According to the invention there is further provided a method of distributing particulate material including entraining the particulate material in air, reducing the speed of the flow of air in which the particulate material is entrained by passing the entrained particulate material through an expansion chamber, charging a feeder with the entrained particulate material, the feeder communication with the expansion chamber, discharging the particulate material from the feeder and directing the flow of particulate material onto a deflector so that a hollow cylindrical curtain of uniformly distributed particulate material is formed leaving the deflector.
The single FIGURE of the drawing is a vertical sectional view of a distributor for a particulate material.
The single FIGURE of the drawings in which an apparatus for distributing particulate material includes a cylindrical feeder 2 having an open top 4 forming a charging inlet, the periphery of which is surrounded by an external flange 6. Spaced apart from the charging inlet 4 and axially aligned therewith is a circular aperture 8 surrounded by an external peripheral flange 10, the aperture 8 communicating with an axially aligned discharge outlet duct 12 at a lower end portion of the feeder 2. The discharge outlet duct 12 is frusto-conical in shape having at an upper end portion thereof an external
REFERENCES:
patent: 1802059 (1931-04-01), Maciejski
patent: 2198587 (1940-04-01), Skinner
patent: 2209842 (1940-07-01), Murray
patent: 3189230 (1965-06-01), Gillespie
patent: 3315823 (1967-04-01), Rikoff
patent: 3563476 (1971-02-01), Donelson, Jr.
patent: 4272028 (1981-06-01), Cobb
patent: 4419036 (1983-12-01), Beckenbach et al.
Hilgraf Peter
Somhegyi Ivan
Claudius Peters A.G.
Nase Jeffrey V.
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