26-05-2012, 04:07 PM
Electrostatic Precipitator Systems
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A History
Innovation, experience and a tradition of quality have
made Wheelabrator an acknowledged world leader in air
pollution control technology for more than 90 years.
Our record of technological firsts includes the introduction
of the Rigid Frame Electrostatic Precipitator to North
American in 1965. Today, Wheelabrator technology encompasses
all major designs in electrostatic precipitators to clean
Pulp and paper recovery boiler
Wood-waste-fired cogeneration facility
Pulp and paper power boiler
Oil refinery catalytic cracker
gases from industrial and utility processes ranging
from 30,000 to 5 million ACFM.
Designs include the Wheelabrator HaRDE® Rigid
Discharge Electrode with tumbling hammer rapping
and the Wheelabrator VIGR™ Rigid Discharge
Electrode with magnetic impulse rapping.
We have applied these designs to coal-fired boilers,
pulp-and-paper recovery boilers, bark boilers, catalytic
crackers, refuse-to-energy facilities, cement plants,
cogeneration facilities and a wide variety of other processes.
Among our achievements is the world’s largest
electrostatic precipitator system on a coal-fired boiler.
We continue to serve major companies throughout the
world with one of the most experienced technical staffs in
the air pollution control industry, offering advanced
equipment and a level of service few other air pollution
control specialists can match.
The Wheelabrator HaRDE® Electrostatic Precipitator
is ideal for sticky, tenacious and high-resistivity dusts.
Unbreakable electrodes efficiently transmit rapping forces
from internal tumbling hammers that swing freely under the
most adverse conditions. Staggered hammer positions
reduce the collecting plate and discharge electrode surface
that is rapped at any instant, minimizing particulate reentrainment
and opacity spikes.
Tumbling hammers strike the collecting plates and
rigid electrodes directly, so that all areas receive proper
rapping acceleration and no energy is lost to the support
structure.
Maintenance is simplified by convenient side access
and internal access walkways. Minimal casing penetrations
ensure long life.