Dust emission by powder handling: Influence of the hopper outlet on the dust plume

Renaud Ansart (1) , Jean‐jacques Letourneau (1) , Alain de Ryck (1) , John A. Dodds (1)

1 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement

Dust generation in solids handling involving free fall of bulk materials and impacts on a stockpile can cause many problems in industry and be a great danger for operators health. This paper describes an experimental set up to characterize the dust plume formed in free fall of powders from a hopper and investigates the influence of various outlet geometries on the dust plume. For this purpose an image analysis technique was developed to quantify the characteristics of the dust plume.

Mots clés: Dust emission; Plume; Image analysis; PIV

Domaines: Génie des procédés

Renaud Ansart, Jean‐jacques Letourneau, Alain de Ryck, John A. Dodds. Dust emission by powder handling: Influence of the hopper outlet on the dust plume. Powder Technology, 2011, vol. 212, pp. 418-424. ⟨10.1016/j.powtec.2011.06.022⟩. ⟨hal-00743633⟩