World Grain - August 2018 - 70

GRAIN OPERATIONS

sion. A more complex answer to the question uses a measure
called the Maximum Explosive Concentration (MEC). This
concentration varies by particle size, with smaller particles
more hazardous. The small particles of most grains mean
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as wheat should always be considered combustible.
MITIGATING AND PREVENTING EXPLOSIONS
Many improvements in design, monitoring, maintenance,
and training employees have reduced the number of explosions that occur. One of the challenges of prevention is that
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explosion events after occurrence. Of the 104 explosions
reported from 2005 through 2017, the ignition source and
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according to information collected by Purdue University.
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multiple sources of dust generation within the grain facility, poorly maintained handling or conveyance equipment, and a lack of a preventive maintenance approach in
grain and feed handling and processing facilities. A lack of
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workers, supervisors and contractors is another challenge.
The responsibility for overseeing details or creating awareness on these items belongs to workers and supervisors.
Safety directors in grain and feed handling facilities
balance multiple hazards and, in some cases, prioritizing
housekeeping and equipment maintenance can be challenging. Further, having safety standards and implementing these standards consistently can be an obstacle. The
reluctance of personnel to accept the potential grain dust
hazards in grain and feed handling facilities is a major barrier. Narrow opinions such as "nothing has happened until
now" or "accidents occur no matter how much you train
the workers" must be overcome to successfully deliver the
safety message about grain dust explosion threats faced
by the grain handling and processing industry. Additionally, grains are handled and processed differently based on
industry type. As a result, safety requirements may vary,
leading to a discrepancy in the literature and confusion
about best practices for managing grain dust hazards.
Advanced engineering controls such as explosion suppression systems and dust collection systems have been successful
in lowering the number of grain
dust explosions. Yet, the
presence of advanced control
equipment can raise a false
sense of security in managers,
supervisors and workers. Grain
dust collection and mitigation
systems work well when installed
and used correctly and in align70

Five died in an explosion in July 2007 at this flour mill in Fossano, Italy.
Photo courtesy of ANTIM.

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dust collectors are inadequately designed for the environment they operate within or process changes are made after
the installation without an adequate review, the system may
not protect the facility or its employees as expected. Also,
outside parties who inspect facilities may not always be
able to identify dust explosion hazards.
Awareness and use of these advanced controls are mostly
limited to larger organizations with many employees and
a dedicated safety staff. Smaller facilities often operate
without any advanced dust control or explosion mitigation
plan. Facilities with a smaller budget have options to minimize grain dust hazards in their facility, but they must take
the hazard seriously. In all mitigation methods, the focus
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explosions from the mix. Effective dust collection at the
loading and unloading points is one option as is managing
dust once it has entered the facility.
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turbulence of grain at transfer points to minimize dust separaAugust 2018 / World Grain / www.World-Grain.com


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Table of Contents for the Digital Edition of World Grain - August 2018

http://digital.world-grain.com/sosland/wg/2019_05_01
http://digital.world-grain.com/sosland/wg/2019_04_01
http://digital.world-grain.com/sosland/wg/2019_03_01
http://digital.world-grain.com/sosland/wg/2019_02_01
http://digital.world-grain.com/sosland/wg/2019_01_01
http://digital.world-grain.com/sosland/wg/2018_12_01
http://digital.world-grain.com/sosland/wg/2018_11_01
http://digital.world-grain.com/sosland/wg/2018_10_01
http://digital.world-grain.com/sosland/wg/2018_09_01
http://digital.world-grain.com/sosland/wg/2018_08_01
http://digital.world-grain.com/sosland/wg/2018_07_01
http://digital.world-grain.com/sosland/wg/2018_06_01
http://digital.world-grain.com/sosland/wg/2018_05_01
http://digital.world-grain.com/sosland/wg/2018_04_01
http://digital.world-grain.com/sosland/wg/2018_03_01
http://www.nxtbook.com/sosland/wg/2018_02_01
http://www.nxtbook.com/sosland/wg/2018_01_01
http://www.nxtbook.com/sosland/wg/2017_12_01
http://www.nxtbook.com/sosland/wg/2017_11_01
http://www.nxtbook.com/sosland/wg/2017_10_01
http://www.nxtbook.com/sosland/wg/2017_09_01
http://www.nxtbook.com/sosland/wg/2017_08_01
http://www.nxtbook.com/sosland/wg/2017_07_01
http://www.nxtbook.com/sosland/wg/2017_06_01
http://www.nxtbook.com/sosland/wg/2017_05_01
http://www.nxtbook.com/sosland/wg/2017_04_01
http://www.nxtbook.com/sosland/wg/2017_03_01
http://www.nxtbook.com/sosland/wg/2017_02_01
http://www.nxtbook.com/sosland/wg/2017_01_01
http://www.nxtbook.com/sosland/wg/2016_12_01
http://www.nxtbook.com/sosland/wg/2016_11_01
http://www.nxtbook.com/sosland/wg/2016_10_01
http://www.nxtbook.com/sosland/wg/2016_09_01
http://www.nxtbook.com/sosland/wg/2016_08_01
http://www.nxtbook.com/sosland/wg/2016_07_01
http://www.nxtbook.com/sosland/wg/2016_06_01
http://www.nxtbook.com/sosland/wg/2016_05_01
http://www.nxtbook.com/sosland/wg/2016_04_01
http://www.nxtbook.com/sosland/wg/2016_03_01
http://www.nxtbook.com/sosland/wg/2016_02_01
http://www.nxtbook.com/sosland/wg/2016_01_01
http://www.nxtbook.com/sosland/wg/2015_12_01
http://www.nxtbook.com/sosland/wg/2015_11_01
http://www.nxtbook.com/sosland/wg/2015_10_01
http://digital.world-grain.com/sosland/wg/2015_09_01
http://digital.world-grain.com/sosland/wg/2015_08_01
http://digital.world-grain.com/sosland/wg/2015_07_01
http://digital.world-grain.com/sosland/wg/2015_06_01
http://digital.world-grain.com/sosland/wg/2015_05_01
http://www.nxtbook.com/sosland/wg/2015_04_01
http://www.nxtbook.com/sosland/wg/2015_03_01
http://www.nxtbook.com/sosland/wg/2015_02_01
http://digital.world-grain.com/sosland/wg/2015_01_01
http://www.nxtbook.com/sosland/wg/2014_12_01
http://www.nxtbook.com/sosland/wg/2014_11_01
http://www.nxtbook.com/sosland/wg/2014_10_01
http://www.nxtbook.com/sosland/wg/2014_09_01
http://www.nxtbook.com/sosland/wg/2014_08_01
http://www.nxtbook.com/sosland/wg/2014_07_01
http://www.nxtbook.com/sosland/wg/2014_06_01
http://www.nxtbook.com/sosland/wg/2014_05_01
http://www.nxtbook.com/sosland/wg/2014_04_01
http://www.nxtbook.com/sosland/wg/2014_03_01
http://www.nxtbook.com/sosland/wg/2014_02_01
http://www.nxtbook.com/sosland/wg/2014_01_01
http://www.nxtbook.com/sosland/wg/2013_12_01
http://www.nxtbook.com/sosland/wg/2013_11_01
http://www.nxtbook.com/sosland/wg/2013_10_01
http://www.nxtbook.com/sosland/wg/2013_09_01
http://www.nxtbook.com/sosland/wg/2013_08_01
http://www.nxtbook.com/sosland/wg/2013_07_01
http://www.nxtbook.com/sosland/wg/2013_06_01
http://www.nxtbook.com/sosland/wg/2013_05_01
http://www.nxtbook.com/sosland/wg/2013_04_01
http://www.nxtbook.com/sosland/wg/2013_03_01
http://www.nxtbook.com/sosland/wg/2013_02_01
http://www.nxtbook.com/sosland/wg/2013_01_01
http://www.nxtbook.com/sosland/wg/2012_12_01
http://www.nxtbook.com/sosland/wg/2012_11_01
http://www.nxtbook.com/sosland/wg/2012_10_01
http://www.nxtbook.com/sosland/wg/2012_09_01
http://www.nxtbook.com/sosland/wg/2012_08_01
http://www.nxtbook.com/sosland/wg/2012_07_01
http://www.nxtbook.com/sosland/wg/2012_06_01
http://www.nxtbook.com/sosland/wg/2012_05_01
http://www.nxtbook.com/sosland/wg/2012_04_01
http://www.nxtbook.com/sosland/wg/2012_03_01
http://www.nxtbook.com/sosland/wg/2012_02_01
http://www.nxtbook.com/sosland/wg/2012_01_01
http://www.nxtbook.com/sosland/wg/2011_12_01
http://www.nxtbook.com/sosland/wg/2011_11_01
http://www.nxtbook.com/sosland/wg/2011_10_01
http://www.nxtbook.com/sosland/wg/20111_09_01
http://www.nxtbook.com/sosland/wg/2011_08_01
http://www.nxtbook.com/sosland/wg/2011_07_01
http://www.nxtbook.com/sosland/wg/2011_06_01
http://www.nxtbook.com/sosland/wg/2011_05_01
http://www.nxtbook.com/sosland/wg/2011_04_01
http://www.nxtbook.com/sosland/wg/2011_03_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_01_01
http://digital.world-grain.com/sosland/wg/2010_12_01
http://digital.world-grain.com/sosland/wg/2010_11_01
http://digital.world-grain.com/sosland/wg/2010_10_01
http://digital.world-grain.com/sosland/wg/2010_09_01
http://digital.world-grain.com/sosland/wg/2010_08_01
http://digital.world-grain.com/sosland/wg/2010_07_01
http://digital.world-grain.com/sosland/wg/2010_06_01
http://digital.world-grain.com/sosland/wg/2010_05_01
http://digital.world-grain.com/sosland/wg/2010_04_01
http://digital.world-grain.com/sosland/wg/2010_03_01
http://digital.world-grain.com/sosland/wg/2010_02_01
http://digital.world-grain.com/sosland/wg/2010_01_01
http://digital.world-grain.com/sosland/wg/2009_12_01
http://digital.world-grain.com/sosland/wg/2009_11_01
http://digital.world-grain.com/sosland/wg/2009_10_01
http://digital.world-grain.com/sosland/wg/2009_09_01
http://digital.world-grain.com/sosland/wg/2009_08_01
http://digital.world-grain.com/sosland/wg/2009_07_01
http://digital.world-grain.com/sosland/wg/2009_06_01
http://digital.world-grain.com/sosland/wg/2009_05_01
http://digital.world-grain.com/sosland/wg/2009_04_01
http://digital.world-grain.com/sosland/wg/2009_03_01
http://digital.world-grain.com/sosland/wg/2009_02_01
http://digital.world-grain.com/sosland/wg/2009_01_01
http://digital.world-grain.com/sosland/wg/2008_12_01
http://digital.world-grain.com/sosland/wg/2008_11_01
http://digital.world-grain.com/sosland/wg/2008_10_01
http://digital.world-grain.com/sosland/wg/2008_09_01
http://digital.world-grain.com/sosland/wg/2008_08_01
http://digital.world-grain.com/sosland/wg/2008_07_01
http://digital.world-grain.com/sosland/wg/2008_06_01
http://digital.world-grain.com/sosland/wg/2008_05_01
http://digital.world-grain.com/sosland/wg/2008_04_01
http://digital.world-grain.com/sosland/wg/2008_03_01
http://digital.world-grain.com/sosland/wg/2008_02_01
http://digital.world-grain.com/sosland/wg/2008_01_01
http://digital.world-grain.com/sosland/wg/2007_12_01
http://digital.world-grain.com/sosland/wg/2007_11_01
http://digital.world-grain.com/sosland/wg/2007_10_01
http://digital.world-grain.com/sosland/wg/2007_09_01
http://digital.world-grain.com/sosland/wg/2007_08_01
http://digital.world-grain.com/sosland/wg/2007_07_01
http://digital.world-grain.com/sosland/wg/2007_06_01
http://digital.world-grain.com/sosland/wg/2007_05_01
http://digital.world-grain.com/sosland/wg/2007_04_01
http://digital.world-grain.com/sosland/wg/2007_03_01
http://digital.world-grain.com/sosland/wg/2007_02_01
http://digital.world-grain.com/sosland/wg/2007_01_01
http://digital.world-grain.com/sosland/wg/2006_12_01
http://digital.world-grain.com/sosland/wg/2006_11_01
http://digital.world-grain.com/sosland/wg/2006_10_01
http://digital.world-grain.com/sosland/wg/2006_09_01
http://digital.world-grain.com/sosland/wg/2006_08_01
http://digital.world-grain.com/sosland/wg/2006_07_01
http://digital.world-grain.com/sosland/wg/2006_06_01
http://digital.world-grain.com/sosland/wg/2006_05_01
http://digital.world-grain.com/sosland/wg/2006_04_01
http://digital.world-grain.com/sosland/wg/2006_03_01
http://digital.world-grain.com/sosland/wg/2006_02_01
http://digital.world-grain.com/sosland/wg/2006_01_01
http://digital.world-grain.com/sosland/wg/2005_12_01
http://digital.world-grain.com/sosland/wg/2005_11_01
http://digital.world-grain.com/sosland/wg/2005_10_01
http://digital.world-grain.com/sosland/wg/2005_09_01
http://digital.world-grain.com/sosland/wg/2005_08_01
http://digital.world-grain.com/sosland/wg/2005_07_01
http://digital.world-grain.com/sosland/wg/2005_06_01
http://digital.world-grain.com/sosland/wg/2005_05_01
http://digital.world-grain.com/sosland/wg/2005_04_01
http://digital.world-grain.com/sosland/wg/2005_03_01
http://digital.world-grain.com/sosland/wg/2005_02_01
http://digital.world-grain.com/sosland/wg/2005_01_01
http://digital.world-grain.com/sosland/wg/2004_12_01
http://digital.world-grain.com/sosland/wg/2004_11_01
http://digital.world-grain.com/sosland/wg/2004_10_02
http://digital.world-grain.com/sosland/wg/2004_10_02
http://digital.world-grain.com/sosland/wg/2004_10_01
http://digital.world-grain.com/sosland/wg/2004_09_01
http://digital.world-grain.com/sosland/wg/2004_08_01
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