Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1977-12-08
1978-12-05
Sever, Frank
Gas separation
Means within gas stream for conducting concentrate to collector
65 2, 264 37, 264121, B01D 4512
Patent
active
041284046
ABSTRACT:
A method and apparatus for removing a resiliently compressible material from an air stream is the subject of the present invention. By utilizing a screw conveyor within a cyclone separator, the material is first separated and then removed. As a result of compaction, removal from the separator is facilitated and subsequent handling is made practical as a result of the increased density. The screw conveyor is provided with flights of increasing size to conform generally to the configuration of the cyclone separator. Baffle plates on the cyclone itself tend to scrape the material off the screw conveyor. The invention also contemplates passing the compacted material through an air lock and into a pneumatic conveying path. To this end, a multiple compartment air lock wheel is placed with its axis perpendicular to the axis of the screw conveyor for receiving material from the latter. Another feature of the invention is the use of novel screening means within the separator to filter the separated air stream. The screening means includes structure for cleaning adhering material from the screen. The cleaning structure may take the form of rotating air nozzles inside the screening means, wiper blades on the outside of the screening means or a combination of these two. A third cleaning means employs rotation of the screening means at a high speed. The interior of the screening means is compartmentalized and a gate is employed to periodically block the flow of air through each compartment so that the centrifugal force from the rotating screen will throw off adhering material. This feature of the invention is applicable to all types of centrifugal separators.
REFERENCES:
patent: 2736141 (1956-02-01), Silverman et al.
patent: 2888375 (1959-05-01), Drummond
patent: 3496601 (1970-02-01), McGill
patent: 4054434 (1977-10-01), Thomas et al.
Stamatiou Dimitri S.
Stamatiou Lila D.
Pneumatic Force Feeder, Inc.
Sever Frank
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