Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1975-01-27
1977-08-16
Nozick, Bernard
Gas separation
Means within gas stream for conducting concentrate to collector
55479, B01D 4632
Patent
active
040423530
ABSTRACT:
A first feed comprising particulate material predominantly in the size range 30 mesh to 1/2 in. is fed into an upper portion of an upwardly extending casing, and is a major portion of the particulate material. A second feed, which is a minor portion of the particulate material, comprises at least 50% by weight of fines predominantly in the range 140 mesh to 30 mesh, the remainder being superfines, is also fed into the casing. A gas is fed upwardly along at least a portion of the casing so that the coarse particles, a major portion of the fines and a minor portion of the superfines freely gravitate down the casing in counterflow to the flow of a major portion of the gas and form a packed particulate bed in a container beneath the casing. A particulate exit flow rate device such as a screw conveyor maintains the height of the packed particulate bed so that it covers a louvered packed particulate bed retaining, gas inlet to and a louvered packed particulate bed retaining, gas outlet from the container and also causes the major portion of the gas to flow upwardly along the casing. The superfines and any remaining fines are entrained in the gas, carried upwardly along the casing and then conveyed by the gas pressure in the casing along a pipe, from the top of the casing, downwardly to the packed particulate bed retaining, gas inlet to the packed particulate bed. The major portion of the superfines and any remaining fines are filtered from the gas and the gas leaves the container by the packed particulate bed retaining, gas outlet. An inclined baffle is provided in the casing to direct particulate material towards the louvered packed particulate bed retaining, gas inlet, so that there is a predominance of finer particles adjacent the louvered packed particulate bed retaining, gas inlet. The fines and the superfines may be fed into the casing with the coarse particulate material, with the gas or independently provided that a major portion of the fines and a minor portion of the superfines gravitate down the casing with the coarse particles in counterflow to the flow of the major portion of the gas.
REFERENCES:
patent: 1570869 (1926-01-01), Thompson et al.
patent: 2156924 (1939-05-01), Schneider
patent: 2834119 (1958-05-01), Schaub
Buhr Robert K.
Rehder John E.
Warda Richard D.
Canadian Patents and Development Limited
Lemon Francis W.
Nozick Bernard
LandOfFree
Method and apparatus for filtering through particulate material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for filtering through particulate material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for filtering through particulate material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-358546