Dustiness

Dustiness refers to the tendency of fine particles to become airborne during handling, processing, or transport. This phenomenon poses challenges for industries such as pharmaceuticals, food, and chemicals, impacting worker safety, environmental compliance, and material loss.

On this page, discover the causes of dustiness, its measurement techniques, and strategies to reduce dust emissions, ensuring safer and more efficient industrial operations.

Featured Dustiness articles

  • Technical diagram showing Kst explosion index limitations — standardized 20-litre sphere test conditions compared with real industrial vessel geometry and turbulence

    Why Kst Is Not Enough: What the Explosion Index Tells You and What It Misses

    Kst quantifies explosion rate-of-pressure-rise under standardized lab conditions. It does not directly describe how an explosion behaves in your vessel, at your turbulence level, or with your ignition scenario. This insight explains what the number means, where the cubic law holds, and when a competent person must go further than the test certificate.

  • Fine particles between larger powder particles showing how fines in powder behavior affect surface area, contact points, and restricted air paths.

    Fines in Powder Behavior: Why Small Amounts Matter

    Fines in powder behavior matter because fine particles add surface area, contact points, and interaction sites. A small increase in the fine fraction can change cohesion, air movement, dust formation, packing, and flow behavior, even when the median particle size remains stable. A powder does not need a [...]

  • Technical illustration of dust control in powder handling at a transfer point, showing how displaced air and hood placement affect airborne dust release.

    Why Dust Control in Powder Handling Starts With Powder Behavior

    Dust control in powder handling works best when it starts with the release mechanism. A larger extraction system may reduce room haze, but it cannot by itself explain why one powder lifts easily, another stays quiet, and a third becomes dusty only at one specific transfer point. Dust [...]

  • Pneumatic conveying attrition technical illustration showing how particles become chipped and generate fines after passing through bends in a pneumatic conveying line.

    Pneumatic Conveying Attrition: Transfer Quietly Changes Powder

    Pneumatic conveying attrition can change a powder even when the transfer looks successful. A line may run without blockage, and the material may still arrive with a broader PSD, more fines, and altered handling behavior. Therefore, if downstream dustiness, feeding, or blend performance shifts after transfer, the conveying line itself should be treated [...]

  • Powder dustiness technical illustration comparing two transfer situations with the same PSD, showing how moisture history, agglomerate stability, and electrostatic effects change particle detachment and airborne dust release.

    Powder Dustiness Is a Release Problem, Not a Fines Number

    Powder dustiness is a release behavior. It is not a simple fines number. Two powders can meet the same particle size specification and still generate very different airborne dust during charging, dumping, transfer, or refill. Therefore, if you want to control powder dustiness, you need to look at how particles detach under real [...]

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