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Dust explosion prevention
Left: A typical suppression system consists of sensors and several explosion-suppressing “cannons” that propel an extinguishing agent, e.g., sodium bicarbonate, into the process equipment. Nitrogen is often used to provide the motive power. The BS&B suppression system keeps the nitrogen and extinguishing chemical separate until the instant of activation. For this reason, discharge cannons can be installed facing vertically down, horizontal, or even upwards. Right: To protect process equipment and personnel, various technical approaches may be needed, including passive devices like vents or containment systems, and/or active devices like explosion suppression or spark detection and extinguishing systems.

Next Phase for Industrial Dust-Explosion Protection

NFPA 652 requires sampling and analysis to identify potential risks, prompting new interest in mitigation equipment

Any operation that manufactures or processes bulk materials, or manages such materials as waste or by-products, must take seriously the new NFPA Standards for handling combustible dusts or particulate solids. Explosions may result from an ignition of a combustible gas, mist or dust when mixed with air during processing, handling, or storage of such materials. A rapid rise in pressure occurs in the containing structure, and if it is not sturdy enough to withstand the pressure, extensive

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