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If you are an ASABE member or if your employer has arranged for access to the full-text, click the underlined title below to view. Don't have access to the full text? Click here for options. Improving Solids Flow in Bins and Hoppers Using the Diamondback HopperPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: Paper number 064003, 2006 ASAE Annual Meeting . @2006Authors: Joe Ririe, Kristin O’Quest Keywords: Milling, mill, flour, material flow properties, bulk solid, rathole, hangups, conical hopper, slot outlet, screw feeder, transition hopper, Diamondback hopper, fine powders, variable pitch screw, variable shaft screw, flow rate, arching, bridging, one-dimensional convergence, two-dimensional convergence, bin, silo, hoop stress, material handling, flow problems Bulk solids flow in different patterns depending on the geometry of the vessel from which they are being discharged. Some silo and hopper designs can lead to inefficient processing, spoiled product and even dangerous conditions when not designed for the material they store and process; however, the application of reliable material flow properties to good engineering design principles will result in consistent and reliable flow of a vessel’s contents during discharge. This paper outlines typical flow patterns as they relate to bulk solids material flow properties in some common hopper designs and in an improved hopper design known as the Diamondback Hopper, and discusses the advantages and disadvantages of each geometry. Common flow problems, material flow properties, and design criteria are defined. |