Re: Information Regarding Dust Explosions
Dusts of some metals and carbon based materials.
A google search will help you.
www.google.com ■
Solution
if drying, these dust or fine particles any ideas to solution of this problem, to minimise risk of explosion? ■
Re: Information Regarding Dust Explosions
1) measure the characteristics of the dust(s) i.e. layer ignition temperature, cloud ignition temperature, minimum ignition concentration etc
2) monitor the conditions in the drying eqnviroment i.e. temperature, dust concentration etc
3) carry out risk assessment as to ignition sources
4) put in place measures to mitigate against an explosion according to the risks identified. ■
Bang On!!!!
Equipment is covered by the ATEX regulations, or similar local statute.
Designer once posted a link to OHSA which was very informative indeed. 
Thanks again Designer
. (PS. You've just jumped in as I typed.)■
Re: Information Regarding Dust Explosions
Just checking LF Pumping Dryer's profile is see he is UK based.
I might have expected that anyone involved with powders in the UK would be well aware of the requirements of ATEX. It's been around a while now and there have been LOTS of seminars around the country! ■
Re: Information Regarding Dust Explosions
Jut try the GESTIS-DUST-EX
Database Combustion and explosion characteristics of dusts
http://www.dguv.de/ifa/en/gestis/expl/index.jsp
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Re: Information Regarding Dust Explosions
A word to the wise, TEST YOUR OWN DUSTS ! ■
Bang On Boyo.
I have issues with storing petcoke to the tune of 300,000t but I expect all of my warnings to get swept away soon after the plant comes on stream.
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Quantify And Characterize The Dust Explosion Risk First
I would recommend the first step be to quantify and characterise the risk of your dusts/powders and characterize the type of explosion possible. ATEX / Firex risk analysis / dust explosion testing is widely available in the UK but be sure to get meaningful results from real experts which actually help you to determine the risks. Supression / containment etc are often effective but the remember experience has shown small initial, contained explosions can disturb layers of dust throughout a manufacturing area leading to a "secondary explosion" which is often the real killer. Dont want to alarm you but plenty of info on the topic available at www.csb.gov inc video's and more csb video's on youtube. ■
Re: Information Regarding Dust Explosions
Originally Posted by designer
Just to add to this thread, people looking for infos on dust explosions, especially important physical characteristics for carrying a risk analysis, or some reference data, can refer to this source : https://powderprocess.net/Safety/SafetyHandbook.html ■
Information Regarding Dust Explosions
One of the key aspect of fine particle and dust in materials is that they can become explosive.
Which materials are problematic regarding this issue?
Any solutions to this issue? ■