Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1980-08-06
1983-02-15
Nozick, Bernard
Gas separation
Means within gas stream for conducting concentrate to collector
55378, 177246, 248 95, 248325, B01D 4600
Patent
active
043739369
ABSTRACT:
A filter bag tensioning device for use in a bag house is disclosed. The tensioning device comprises a straight lever arm adapted to be pivotally mounted in the upper reaches of a bag house and carrying, on the end of the lever arm opposite that of filter bag attachment, a semi-fixed counterweight. The semi-fixed counterweight is prevented from rotating as its end of the lever arm moves in an ascending direction from a horizontal position but is free to rotate as its end of the lever arm moves in a descending direction from horizontal, to thereby continuously maintain a desired design tension on an attached filter bag. In a preferred embodiment, the lever arm can also be rotated to a vertical position and then moved longitudinally of its pivot to substantially lower the filter bag attachment point, thereby greatly facilitating attachment and replacement of filter bags and, in a further preferred aspect, to permit these operations to be performed by a workman having both hands free. Also, the tensioning device is preferably mounted so as to permit maximum pivoting of the lever arm during bag cleaning operations and, accordingly, maximum deflection of and minimum stress on a filter bag attached to the tensioning device.
REFERENCES:
patent: 497670 (1893-05-01), Kroll
patent: 3106977 (1963-10-01), Wells
patent: 3504729 (1970-04-01), Alton
patent: 3683595 (1972-08-01), Houghton et al.
patent: 3698496 (1972-10-01), Lohmann
patent: 4217117 (1980-08-01), Syverson
Brumback Oscar B.
Koppers Company Inc.
Nozick Bernard
Shanahan Thomas F.
Zeh, Jr. Herbert J.
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