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Showing posts from August, 2011

Category » Dr. Gerd Mayer « @ Ask The Experts

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From Poweder and Buld Solids "Ask The Experts" Blog, here is a great seires of questions about dust collectors and combustible, answered by Dr. Gerd Mayer with Rembe, Inc.

Category » Dr. Gerd Mayer « @ Ask The Experts

Explosion Venting/Suppression Q&A If you have an existing dust collector with no provisions for handling explosive/combustible dust and you test your dust and find out it is combustible, what are the issues to consider in determining if the system can be modified to handle explosive dust or if it needs to be replaced with a new system? Under typical circumstances where you have complete information about your dust collector, such as the strength of the collector, retrofitting should be no problem. In that situation, in accordance with NFPA standards 654, 68, 69, and perhaps other standards that specifically address your industry, a dust collector must be vented/suppressed and isolated ( the inlet always needs to be isolated; the clean air side must b…

Sawdust Cannon

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From Navy Island, Inc., a MN manufacturer of veneers and doors. Excellent example of a controlled wood dust explosion. Notice how the flame front moves through the suspended dust. This is a perfect example how a flame front will travel in a primary or secondary explosion. Click on the link to see the original:

Sawdust Cannon


Or watch this YouTube video: