Dust Explosion Oxygen Safety Monitor For Dense Phase Pneumatic Conveying Applications
Pneumatic conveying raises the possibility of dust explosion hazards. Dust explosions can occur over a range of dust density, in general from 100 g/m3 to 3 kg/m3. At low concentrations there is not enough fuel, and at high concentrations there is not enough oxygen. Reducing the oxygen concentration using nitrogen blanketing or nitrogen pneumatic transport systems depresses the upper explosion limit, increases the minimum ignition energy, and reduces the severity of the explosion by limiting the rate of combustion. Explosions can be completely suppressed if the oxygen concentration is low enough, with typical values of the limiting oxygen concentration (LOC) for organic dusts of 11%.
For a reference work on the subject, consider getting Dust Explosions in the Process Industries - by R. K. Eckhoff - 1997 At this time, widely considered the definitive book on dust explosions, it is very readable and universally acclaimed.
Here are the specifications for our Dust Explosion Oxygen Safety Monitor
[Oxigraf O2E2] O2 analyzer for Dust Explosion Oxygen Safety Monitor For Dense Phase Pneumatic Conveying