Dust Explosion Prevention

What Causes a Dust Explosion?

A dust explosion is caused by the rapid combustion of fine particles suspended in the air, often but not always in an enclosed location. Dust explosions can occur where any dispersed powdered combustible material is present in high enough concentrations in the atmosphere or other oxidizing gaseous medium such as oxygen. Usually, if the event is confined by an enclosure such as a building, room, vessel, or process equipment, the resulting pressure rise may cause an explosion. These five factors (oxygen, heat, fuel, dispersion, and confinement) are known as the “Dust Explosion Pentagon”. If one element of the pentagon is missing, an explosion cannot occur. CV Technology specializes in dust explosion prevention technology to ensure that your facility does not experience the devastating effects of an explosion of this kind.  Contact our team of engineers now to discuss your dust questions, process questions, or facility needs.

How Common is a Dust Explosion or Fire?

As a factory owner, this might scare you: according to recent research conducted by the United States Chemical Safety and Hazard Investigation Board (CSB), over 280 explosions and fires have resulted from the ignition of dusts or dust clouds in U.S. industrial plants over the last 25 years. These incidents have caused 119 fatalities and over 700 injuries as well as untold millions of dollars in damages. It is likely that there were at least 80 additional incidents that were not documented in the CSB study.  These numbers are staggering and are the reason that dust explosion prevention in your factory is a necessary hazard to consider and mitigate.

Similarly, according to Occupational Safety and Health Administration (OSHA), since 1980, more than 130 workers have been killed and more than 780 injured in combustible dust explosions.

The latest research reveals tallies 164 dust explosion incidents in North America, with the United States recording the highest – 34 (approximately 21%). Plus 61 injuries and 6 recorded fatalities. Food products accounted for the highest number of explosions, closely followed by wood products and then paper, metal and coal.  These statistics demand serious attention. Dust explosion prevention needs to be implemented on a larger scale.

Solutions to Prevent & Mitigate Explosions

We can help you with all of your needs, whether you are interested in getting dust tested, discussing your operational process, or helping to retrofit an out-of-date facility with long-lasting solutions. We help improve existing systems or create new safeguards. Our team, comprised of engineers, are here to help you determine what the best solution is for your particular need.

A trusted international partner, our expertise is explosion venting, explosion suppression and mitigation and explosion isolation. Our state-of-the-art technology includes:

  • The Interceptor®-QR® which are NFPA 68 compliant flameless venting devices used in dust explosion mitigation.
  • The Ventex® Explosion Isolation Valve is a passive float valve designed for explosion isolation.
  • Infrared Detection System: Its goal is to eliminate a potential ignition source from the process. As an integral part of dust explosion mitigation, these systems are composed of two components, detectors and action items.
  • The Interceptor®-LT™ is comprised of two parts, a rectangular explosion vent and a quencher. Very effective at interrupting explosion in mid-stream.
  • The Interceptor®-FV® is a NFPA 69 compliant passive flap style isolation valve. When a dust explosion begins to propagate down a pipeline, the flap valve automatically closes from the pressure of the explosion.
  • The Interceptor®-VE™ is a NFPA 69 compliant isolation pinch valve. The Interceptor®-VE™ valve is normally open. This device works perfectly for explosion isolation.
  • Explosion vents offer a passive and economical means of explosion mitigation. The CV Technology standard vents offer a simple installation, long service life, and quick replacement.
  • The Interceptor®-HRD™ chemical suppression and isolation system is designed to provide an active method to protect process system equipment from a dust explosion hazard.

Contact our team of engineers now to discuss your factory, dust, or needs. Please feel free to email or call us today to discuss your needs.