Particulate Emission Monitoring
Solutions
for the Wood Industry
Debarking, Cutting and ChippingCoal Mills
The high levels of moisture and sticky particulate associated with
cutting processes normally result in the use of Cyclones to reduce the
amount of fugitive dust emissions to atmosphere. To assess the
performance of the filter PCME supply a patented fully
insulated ElectroDynamic™ Probe Electrification sensor. This unique industry proven sensor
is successfully used in thousands of moist and damp installations
worldwide to overcome the problems associated with standard
Triboelectric units caused by moist particulate de-sensitising and
ultimately short-circuiting the sensor. [top]
Dryers and
Return to Air Systems
To comply with European return to air regulation EN12779 PCME’s ElectroDynamic™ Probe Electrificationtechnology
is approved by Holz-BG to monitor the extremely low levels of dust
(<0.3 mg/m3) allowed to be returned into the work place by these
internationally recognised standards. Changes in emission levels can be
monitored either locally or remotely to allow the repair of the filter
before exposing the workforce to high levels of dust, any breaches of
the 0.3 mg/m3 limit activate alarm relays to facilitate the diversion
of dust to atmosphere. [top]
Silo
Monitoring
Silo filters are by their very nature sited in remote locations where
it is extremely difficult to identify increases in particulate
emissions before a major release of dust has occurred. PCME provide a
range of both trending and calibrateable instrumentation to continually
guard against nuisance dust emissions. These systems offer both local
alarms to allow automated plant shut down together with remote
observation of filter performance via either 4/20mA or Modbus
connections. [top]
Trimming
Processes
The rugged construction, ease of use and reliability of these industry
proven monitors (approved to MCERTS and TUV), have made them a popular
choice for the exacting monitoring requirements as laid out by
International Regulations. [top]
Wood Chip
Boilers
Bag Filters are commonly used in conjunction with Woodchip Boilers to
limit the amount of fugitive dust emissions, to monitor the low
emission levels from these filters (typically single figure
mg/m3) ElectroDynamic™ Probe Electrification systems
are preferred. Unlike traditional Opacity and Triboelectric systems
whose readings are affected by particulate build-up on the sensing
elements, they are unaffected by contamination and do not require
frequent cleaning of the of the sensor rod. As additional services such
as purge air are not needed the cost of ownership of ElectroDynamic™ Probe Electrification systems
is by comparison to other techniques extremely low. [top]
Sifting and
Grading
The capability of Advanced ElectroDynamic™ Probe Electrification
monitoring systems to warn of increasing emission trends and in
conjunction with a Predict software package, to accurately indicate
which filter row within a bag house is under performing can rapidly
effect pay back of the instrument. Ongoing cost savings can be made by
both increasing the usable life of the filter media and by reducing
lost production time caused by unplanned filter outages. [top]
More on key monitoring
considerations and guidance towards technology suitability in the Wood
Particleboard Industry:
 Emission
Monitoring in the Wood Particleboard Industries
More on maximising process performance, reducing waste and improving
efficiency:
Advanced
Bagfilter Diagnostics
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