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combustible dust explosions

A dust explosion is the rapid combustion of small particles suspended in the air inside an enclosed spot.

There are many dangers that could result or be the cause of the explosion. For a combustible dust explosion to occur, five elements must be present: fuel, oxygen, an ignition source, dispersion and confinement.

According to OSHA safety measures to prevent a dust explosion could be to:

• Implement a hazardous dust control program that includes dust inspection, testing and housekeeping.
• Equip your facility with proper dust collection systems and filters.
• Regularly inspect both open and hidden areas for dust residue. If ignition sources are found, use cleaning methods that don’t generate dust clouds.
• Use vacuum cleaners specifically approved for dust collection.
• Ensure employees are trained on the hazards of combustible dust.

• Ensuring appropriate electrical equipment and wiring methods are used.
• Having an ignition control program, such as grounding and bonding and other methods, for dissipating any electrostatic charge that could be generated while transporting dust through duct work.
• Controlling the use of open flames and static electricity. Don’t allow smoking.
• Keeping heated systems and surfaces away from combustible dust.