Fume Scrubbers
The removal of contaminants is accomplished by first
slowing the fumes to a velocity below 500 fpm and then passing the
fumes through four stages of scrubbing. The fumes pass first through
a water spray during which some of the larger contaminant particles
drop out and the remaining fumes are saturated. The second stage
consists of a 12" deep pack of polypropylene, nonclogging,
spherical type mass packing which is kept constantly wet by a continuous
spray. The saturated fumes are impinged upon the packing and the
contaminants are absorbed and carried away in the wash water. After
passing through the scrubbing stages, the air is mist laden and
must then pass through the two stage gravity mist eliminator section.
This consists of a drop out area that removes all but the finest
mist, then, a series of vertically mounted PVC eliminator blades
provide four 30 degree changes in direction and efficiently eliminates
entrained water.
Single pack scrubbers have a static pressure drop
of 2" w.g. and extended pack models have a static pressure
drop of 3" w.g..
These scrubbers may be supplied with water either
directly from your supply or from an integral or remote recirculation
system supplied with the scrubber. It is generally recommended that
a recirculation system be used to conserve water except on very
low cfm units. The actual fresh water consumption varies from only
0.10 to 0.30 gpm/1000 cfm depending on the contaminant involved.
This represents 5 % of the water being recirculated. If cold conditions
exist a remote recirculation system should be specified for placement
in a heated area. KCH Scrubbers come complete with fittings for
the addition of chemical neutralizers if required. A complete metering
and pumping system is also available upon request.
Every KCH Scrubber is shipped complete with an integral
coated steel base. No special mounting is required. Simply connect
the duct, the water and power supply, and the unit is ready for
operation. Complete installation and operating instructions are
supplied with all KCH Scrubbers.
As with all other KCH Products, low maintenance is
a major factor in our scrubbers. Low maintenance components are
use throughout and the unit is complete with quick opening access
doors for easy inspection.
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