Owner`s manual

3
United Air Specialists, Inc.
Supra-Pulse FJH Series
Cartridge Dust Collector
Revised 02/02
2.3 AIR FILTERING OPERATION
The contaminated airstream is drawn into the collector
where its velocity is reduced by an inlet baffle plate(s) to
provide even distribution of the airstream across the
entire surface area of the cartridge filters. This design
enhances filtration efficiency by establishing a uniform
“dust cake” on the filters. The airstream is then directed
around the cartridge filters and downward toward the
hopper where the heavier particles discharge to the
storage container.
The contaminated air then passes through the cartridge
filters. The filter media strips the dust from the airstream
allowing only clean air to pass through the filter. The air
then passes into the clean air plenum, and is
discharged from the unit.
2.4 FILTER CLEANING CYCLE
During normal operation, the surface of the cartridge
filters becomes loaded with contaminants. The reverse
pulse cleaning mechanism provides brief bursts of
compressed air, directed through cleaning nozzles, into
the interior of the cartridge filters. This pulsing action
dislodges the collected particles from the media where it
falls into the hopper and is discharged to the dust
storage container.
During the cleaning cycle, each cartridge filter is
cleaned individually. The solid-state sequential timer
actuates a solenoid valve which allows an air diaphragm
valve to open for approximately 100 milliseconds. High
pressure air from the air manifold reservoir is directed
through a cleaning nozzle to the cartridge center. The
quick blast of compressed air induces additional air from
the clean air plenum which combine to produce a shock
wave, dislodging the dust from the filter being cleaned.
The dislodged dust removed from the filter is swept
downward into the hopper. The remaining filters are
cleaned sequentially. The sequencing is factory set at
10-second intervals and is adjustable to adapt to your
particular cleaning needs.
3. SPECIFICATION TABLE
Supra-Pulse Filter Filter Area Valve Module Equipment
Model Quantity FT
2
Quantity Quantity Weight,
FJH 4-1-H 4 904 2 1 1,560 lbs
FJH 8-2-H 8 1,808 4 1 1,830 lbs
FJH 16-2-H 16 3,616 8 2 3,127 lbs
FJH 24-2-H 24 5,424 12 3 4,424 lbs
FJH 32-2-H 32 7,232 16 4 5,809 lbs
FJH 12-3-H 12 2,712 6 1 2,100 lbs
FJH 24-3-H 24 5,424 12 2 3,559 lbs
FJH 36-3-H 36 8,136 18 3 5,018 lbs
FJH 48-3-H 48 10,848 24 4 6,565 lbs
FJH 60-3-H 60 13,560 30 5 8,024 lbs
FJH 72-3-H 72 16,272 36 6 9,483 lbs
FJH 16-4-H 16 3,616 8 1 2,370 lbs
FJH 32-4-H 32 7,232 16 2 3,993 lbs
FJH 48-4-H 48 10,848 24 3 5,616 lbs
FJH 64-4-H 64 14,464 32 4 7,327 lbs
FJH 80-4-H 80 18,080 40 5 8,950 lbs
FJH 96-4-H 96 21,696 48 6 10,573 lbs
FJH 112-4-H 112 25,312 56 7 12,284 lbs
FJH 128-4-H 128 28,928 64 8 13,907 lbs