Rotating drum filter

Details Rotating drum filter Rotating drum filter

1989-03-31

1990-05-22

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 97, 55282, 55290, 55301, 55474, 55524, 55528, B01D 4604

Patent

active

049274350

ABSTRACT:
A perforated drum (10) rotates in a coaxial cylindrical housing (18) having three circumferential ports (19,22,23), and an axial outlet (24) at one end. The axis (11) is horizontal. A fibrous filter medium (20) is fed through a port (19) on or near the top of the housing (81) by a distributing mechanism (36) which lays a uniform mat (26) of the desired thickness onto the rotating drum (10). This mat (26) is carried by the drum (10) to a second port (23) through which dirty fluid (13) enters. The fluid (13) passes through the filter (26) and the cleaned stream (16) exits through the open end (15) of the drum (10) and the axial port (24) in the housing (18). The dirty filter material (20) is carried on to a third port (22) near the bottom of the housing (18) and drops into a receiver (31) from which it is continuously removed, cleaned (30), and returned (32) to the charging port (36) at the top. To support the filter mat, the perforated cylinder may carry a series of tines (40), shaped blades (41), or pockets, so that the mat (26) will not fall from the drum (10) prematurely. To minimize risk of mat failure, the fluid inlet port (23) may be located above the horizontal centerline (11).

REFERENCES:
patent: 3151187 (1964-09-01), Comte
patent: 4295868 (1981-10-01), Holter et al.
patent: 4415342 (1983-11-01), Foss
patent: 4427422 (1984-01-01), Hiederer
patent: 4481019 (1984-11-01), Moreno

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