Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1981-11-20
1984-02-28
Prunner, Kathleen J.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55324, 55328, 55335, 55341R, 55419, B01D 5000
Patent
active
044339879
ABSTRACT:
Apparatus for filtering air laden with dust or other particulate matter including: a filtering area, an air velocity dissipation zone above the filtering area, a lower tube sheet mounted above the dissipation zone and forming a partial boundary therewith, an air plenum mounted above the lower tube sheet, the air plenum including an air inlet for receiving dust laden air, an upper tube sheet forming an upper boundary of the air plenum, the lower tube sheet including a plurality of holes, the upper tube sheet including a plurality of holes vertically aligned with the holes in the lower tube sheet, a plurality of clean air outlet tubes having upper end, main body and lower end portions, the upper end portions being mounted within the holes in the upper tube sheet, the main body portions extending through the holes in the lower tube sheet, the lower end portions extending beneath the lower tube sheet and ending in a horizontal plane at the interface between the dissipation zone and the filtering area, a plurality of dust bags vertically positioned on the lower end portions of the outlet tubes and extending upwardly to the dissipation zone and positioned substantially within the filtering area, clamps for attaching the dust bags to the lower end portions of the outlet tubes, distributors in the lower tube sheet for initially dividing the dust laden air into a plurality of air streams and for initially directing the plurality of air streams in a generally horizontal path radially away from the lower end portions of the outlet tubes for effecting the air velocity dissipation zone, and a dust hopper positioned beneath the filtering area.
REFERENCES:
patent: 2799355 (1957-07-01), Easton
patent: 3479146 (1969-11-01), Hochman et al.
patent: 3480330 (1969-11-01), Hirs et al.
patent: 3739557 (1973-06-01), Anderson et al.
patent: 3749130 (1973-07-01), Howitt et al.
patent: 3803814 (1974-04-01), Parsons, Jr.
patent: 3963467 (1976-06-01), Rolschau
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