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