June 19, 2018

20/06/2018: Dust dangers: Monitoring for unexpected events

by John Korpi, Sales Director, Sintrol, Finland

Why not use perhaps one of the biggest nuisances in bulk and powder handling as a process variable?

Where there is dust, there is the problem—a visible dust cloud gives operators information that something is wrong in the process, and monitors can tell you in real time where that problem is.

The progress of technology in industrial bulk and powder handling has brought enormous improvement to operational efficiency and productivity. As production volumes have increased and industrial personnel staff has shrunk, threat management against dust explosions has become more challenging. Grain, sugar and other food industries are spending a lot of time, effort and money on the prevention of dust explosions.

Usually required by law, any organisation processing or handling combustible dust must perform an analysis of their dust hazards (DHA). The main focus is usually on the typical points in the process where primary explosions tend to occur such as baghouses, silos, enclosed conveyors, cyclones etc. Focusing on possible secondary explosions is extremely important since historically secondary explosions are the most fatal. Material discharge from the process is common and usually suggests an interruption in the process. Continuous real time monitoring for such interruptions is often very beneficial as another line of defence.

A rugged and reliable measuring method to help mitigate the risks of dust explosions
Sintrol manufactures high quality, low maintenance dust monitors for the detection and monitoring of dust concentrations. Historically the most common applications for Sintrol dust monitors have been inline industrial dust measurement solutions for process control, filtration leak detection and emissions monitoring.

The years of experience in high dust industrial environments and a proven measuring technology brought the development of the DUMO, a unique ambient air monitor that can withstand the high dust concentrations present in factories.

The measuring principle: When solid particles come into contact with or pass by an insulated conductive probe, they induce a charge. This charge is then amplified, filtered and converted into a signal that is proportional to the dust concentration.

Read the full article, HERE.

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.

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