从斗式升降机中分离出气体颗粒外文文献.pdfVIP

Powder Technology 314 (2017) 203–217 Contents lists available at ScienceDirect Powder Technology journal homepage: /locate/powtec Coupled gas-particulate discharge from a bucket elevator Matt D. Sinnott a,⁎, James E. Hilton a, William McBride b, Paul W. Cleary a a CSIRO Data61, Locked Bag 10, Clayton South 3168, Australia b University of Newcastle, Newcastle, NSW, Australia a r t i c l e i n f o a b s t r a c t Article history: The vertical conveying of bulk materials is often performed using bucket elevators. Such devices use conveyor Received 29 August 2016 belts to drag a series of buckets in a circuit, up, around and then down within an enclosure. They are typically Received in revised form 2 December 2016 used for upward transport of fine granular materials. The speed at which these buckets travel can displace a Accepted 4 December 2016 large volume of air. Interaction between this air and the bucket contents can modify the discharge dynamics of Available online 6 December 2016 the granular load. A coupled gas-particulate numerical model is presented using Finite Differences to solve for Keywords: the gas flow with an Immersed Boundary Method (IBM) to represent the complex bucket and enclosure geom- Bucket elevators etry in the model. The Discrete Element Method (DEM) is used for particulate flow. The combined method is used Discrete Element Method