Showing posts from March, 2010

COMBUSTIBLE WOOD FLOUR - "Factory fire causes $350000 damage"

Articles like this always catch my eye: "Factory fire causes $350000 damage"

Over the years I have helped protect many of these wood flour producers. 
This fire was likely caused by the dryer.  Although many are also started in the grinding process. 
For a wood flour composite extrusion process like this,  they will typically dry wood flour to just below combustion  point, creating a highly flammable combustible material 
and dust in the process.  

They will typically use pneumatic conveying of the dried wood flour from the dryer to the process.  
Depending on how the conveying, collection and storage systems are designed, this wood flour can also agglomerate and create stalactites and material build-up
within the ductwork at any joints, elbows and transitions, and also any joints or corners of the dust separator or collector. 
These stalactites can super heat in the hot air stream from the dryer, creating red-hot ignition points within the ductwork and collector. 

Understanding the Dangers of Combustible Dust - sssnews

This article written for Security Shredding and Storage News talks about Fire Safety for the Secure Shredding Industry.  If you have combustible dust - we can help.

I saw this posted on John Astad's (Combustible Dust Policy Institute) Facebook page:Tom Andel, columnist and blogger for Modern Materials Handling (, and a contributor to Logistics Management, shares with readers preventing and mitigating fire potential in a shredding operation.
Understanding the Dangers of Combustible Dust Security Shredding & Storage News

O.A. Newton on dust

Control the Dust = Limit Your Problems + Increase your Profits ...
By oanewton
Seemingly non-combustible compounds become explosive when the air to dust ratio is in the correct range. Grain, metal particles, chemicals and other air borne substances have a surprising ability to become explosive when they have the ...
OA Newton's Blog -

MEMIC Safety Blog: OSHA Eye's Combustible Dust Exposures

From our friends at MEMIC, an introduction to OSHA requirements for Wood Working Facilities.
Topics include:

o OSHA’s requirements for identifying and controlling exposures to combustible dust.
o How to control wood dust exposures generated by commonly used woodworking equipment.
o OSHA related standards, how to recognize wood dust exposures, how to evaluate combustible dust  concentrations, controlling combustible dust, dust system requirements.
o Chronic exposure
o OSHA NEP National Emphasis Program for Combustible Dust CPL 03-00-008

MEMIC Safety Blog: OSHA Eye's Combustible Dust Exposures
By MEMIC Safety
Posted by Hartley Webb This year many wood product companies have requested assistance from MEMIC to help identify and control wood dust exposures and to develop procedures to comply with OSHA's wood dust regulations.
MEMIC Safety Blog -
MEMIC is Maine's largest workers' compensation insurer …

John Ratzenberger - 3 Cheers for Manufacturing

EXCLUSIVE: Nuts, Bolts & Thingamajigs: Three Cheers for Manufacturing
Through its manufacturing summer camps and scholarships, Nuts, Bolts & Thingamajigs is inspiring the next generation of manufacturers and other tinkerers ...  continue

Brought to you by our friends at Chemical Info. 

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