Rotating drum filter

Patent · Mon Jan 01 04:00:00 EST 1990

OSTI ID:867388

Anson, Donald ^[1]

---

1. Worthington, OH

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).

• Research Organization: BATTELLE MEMORIAL INSTITUTE
• DOE Contract Number: AC21-86MC23251
• Assignee: Battelle Memorial Institute (Columbus, OH)
• Patent Number(s): US 4927435
• OSTI ID: 867388
• Country of Publication: United States
• Language: English

Related Subjects

/95/55/
10
11
13
15
16
18
19
20
22
23
24
26
30
31
32
36
40
41
81
axial
axis
blades
bottom
carried
carry
centerline
charging
circumferential
cleaned
coaxial
coaxial cylindrical
continuously
continuously remove
continuously removed
cylinder
cylindrical
cylindrical housing
desired
desired thickness
dirty
distributing
drops
drum
enters
exits
failure
fall
fed
fibrous
filter
filter material
filter medium
fluid
fluid inlet
horizontal
horizontal center
housing
inlet
lays
located
mat
material
mechanism
medium
minimize
near
outlet
passes
perforated
pockets
ports
prematurely
receiver
removed
returned
risk
rotates
rotating
rotating drum
series
shaped
stream
support
thickness
third
tines
top
uniform