CLARCOR UAS SFC Series, Руководство пользователя

Страница: 7 / 40

2
revised 04/15
Sfc
cartridge Dust collector
2.3 AIR FILTERING OPERATION
the contaminated airstream is drawn into the dust
collector where its velocity is reduced by inlet baffle
plates to provide even air distribution 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 down toward the hopper,
where the heavier particles discharge to the dust
storage drum.
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
cartridge filter. the air then passes into the clean air
plenum, through a blower package and is discharged
from the unit.
2.4 FILTER CLEANING CYCLE
During normal operation, the surface of the cartridge
filters become loaded with contaminants. the reverse-
pulse cleaning mechanism provides brief bursts of
compressed air, directed through the diaphragm valves,
toward the cartridge filter. this pulsing action dislodges
the collected particles from the media, where they fall
into the hopper and are discharged to a dust storage
drum or drawer.
During the cleaning cycle, each pair of cartridge filters
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 the diaphragm valve
toward the venturi mounted on the tubesheet in front
of the cartridge filters. the venturi, in conjunction with
the Dif nozzle, maximizes the compressed air energy
to maximize the amount of collected dust released from
the filter surface.
the dislodged dust removed from the filter is swept
downward into the hopper. the remaining filters are
cleaned sequentially. the sequencing is factory preset
at 10-second intervals and is adjustable to adapt to your
particular cleaning needs.
FIGURE 1
SFC Air Filter Operation & Cleaning
44-10334-0001