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Étude des mécanismes d’émission d’aérosols lors de la manipulation de poudres

Abstract : Handling and processing of granular material release fine solid dust particles, which in an occupational setting, can severely affect worker health and safety, the overall plant operation and can release particles to the environment. Dustiness or the ability of a material to release dust particles depends on several material and process properties and is usually measured by lab-scale dustiness testers. Ineris and its partners use an experimental approach (vortex shaker) to understand the dust generation mechanisms. The results indicate that these mechanisms differ based on particle size and size distribution of the powder [1]. Analysis of a traced particle motion inside a cylindrical tube agitated by a vortex shaker dustiness tester shows the cyclic nature of the particle motion [2]. For the given samples and the experimental conditions, the initial dustiness is determined by the fraction of fine respirable particles present in the powder, but the long-term dust generation patterns and levels are influenced by the material attrition behavior
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Submitted on : Thursday, February 21, 2019 - 4:41:20 PM
Last modification on : Sunday, October 23, 2022 - 3:33:59 AM
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  • HAL Id : ineris-02044858, version 1



Olivier Le Bihan, Olivier Aguerre-Chariol, Somik Chakravarty, Marc Fischer, Martin Morgeneyer. Étude des mécanismes d’émission d’aérosols lors de la manipulation de poudres. Rapport Scientifique INERIS, 2018, 2017-2018, pp.18-19. ⟨ineris-02044858⟩



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