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"WHEN DOES
HIGH-VOLUME
AIR FLOW MAKE SENSE?"
Consider factors such
as facility layout,
ventilation systems,
production equipment
such
as paint booths, and
surrounding work
areas.
Negative air
pressures
caused by
these influences
can adversely
effect
air flow
patterns
within a facility
and overpower a
collection system
reducing its collection efficiency. |
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Collection of "Light Metals" Dust
Of
Particular concern is the generation of dusts during the
manufacturing
of products made of "light metals" such as aluminum, magnesium or
titanium.
Metalworking processes such as grinding, abrasive disc cutting,
sawing, scratch
brushing, buffing and polishing create clouds of fine metal
particulate {dust}.
When these "light metals" are involved, the collection of the dusts
becomes
more critical because of their explosive potential.
The risk of explosion increases as the dust gets finer and the
concentrations
increase. The explosion potential is further heightened by the
highly conductive
nature of these metallic dusts. Dry accumulations of the dusts are
highly flammable.
This is especially true of aluminum, magnesium and titanium.
Guidelines for the collection of these "light metal" dusts are
published
by the National Protection Association, NFPA. Cyclones, Cartridge
and
Fabric Filter Collectors use conductive media and are approved with
certain
expensive and extreme restrictions by the NFPA for the collection of
aluminum,
magnesium and titanium dusts. However, it is Air Engineering's
experience
that wet collection with orifice type scrubbers is the most
practical and safe
method of collecting "light metal" dusts.
Air Engineering has the broadest product offering of any air
pollution control
company in North America {i.e., cyclones, cartridge and fabric
filters,
electrostatic precipitators and wet scrubbers, etc.}. With this
complete choice
of collectors available, ONLY THE SIR TYPE "W" HYDROSTATIC
PRECIPITATOR IS RECOMMENDED WHEN LIGHT METAL DUST
COLLECTION IS INVOLVED.
Visit Sirocco-Systems.com
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