| The Importance of Clearance and Bulk Solids Flow Properties in Predicting the Thoughput of a Screw Feeder | ||
| Peter C. Arnold, Centre for Bulk Solids & Particulate Technologies, Faculty of Engineering, University of Wollongong, Northfields Avenue, WOLLONGONG, NSW 2522, Australia and Wendy Halford, Centre for Bulk Solids & Particulate Technologies, University of Wollongong, Northfields Avenue, WOLLONGONG, NSW 2522, Australia Predicting the throughput of a screw feeder can be influenced by several factors in addition to the screw geometry and rotational speed. For feeders comprising a single screw throughput can be influenced by: the volumetric efficiency of the screw; the bulk solid's bulk density and its variability; whether the bulk solid is free-flowing or cohesive; the clearance between the screw and the casing. Predicting the throughput of a multi-screw feeder has additional complicating factors including: whether the screw are overlapping or not; the distance between non overlapping screws; screw rotational directions; trough (casing) geometries. This paper will consider these issues in relation to predicting the throughput of single and multiple screw feeders. Extended Abstract Status: File Uploaded | ||