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Just released 80 page manual on dust collection technology.
Find out more and request your copy now. Click
Here.
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The model SPJ Scientific Dust Collector is a heavy duty reverse pulse-jet dust
collector that operates continuously without requiring the process to be shut down for
cleaning. It is automatically self-cleaning while removing dry dust from an
airstream. It is a versatile unit that can handle almost any type of dust.
With our patented cleaning system Scientific Dust Collectors operate at very high
efficiencies and, for most applications, can operate very reliably with much less filter
media than any other commercially available collector in its class. Cylindrical
fabric filter bags with bottom discs are manufactured from felted cloths and are supported
on the outside of cylindrical wire cages. The dust collects on the outside surface
of the cloth.
Dust laden air enters the unit through a high inlet designed to
reduce upward internal velocities which are prevalent in bottom
entry collectors. Scientific Dust Collectors designs have
improved the high inlet by incorporating a dropout section and perforated
baffle plate causing velocities to be lowered at the entry to the
collector. This feature allows heavier mass dust particles to drop
out into the hopper and reduces the amount of dust carried to the
filter media. Controlling velocities and direction of air
movement within a dust collector are very important to the efficiency
of the unit as they reduce re-entrainment of dust.
Scientific Dust Collectors patented cleaning mechanism generates a short powerful burst of
induced air flow into the top of the bag. These bursts reverse the air flow
momentarily flexing the fabric bags to knock off excess dust agglomerated on the top layer
of the filter cake while maintaining a functional filter cake. The purge tube with
patented high velocity nozzles is positioned directly over the openings at the top of the
bags. Each purge tube is connected to a large fast-acting diaphragm valve on the
outside of the collector. These diaphragm valves are pneumatically operated and
actuated by direct acting solenoid pilot valves, controlled by an adjustable electronic
timing panel.
The patented high velocity nozzle allows Scientific Dust Collectors to eliminate the
venturies used in most generic pulse-jet collectors. Venturies can restrict
filtering velocity, impede cleaning, and cause puffing and abrasion around the top of the
bags. With the patented high velocity nozzle, our cleaning system is able to use
higher air-to-cloth ratios and less compressed air while inducing more air per cubic foot
of compressed air than plain orifices, conventional converging nozzles, or straight
nozzles.
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