The placement of inserts to correct flow in bins

Abstract Many existing installations for storing particulate solids include hoppers from which funnel flow takes place, and although it may be desirable to replace them by mass flow hoppers this may not be economic. It may be possible to concert the hopper into a mass flow hopper, or to reduce the tendency to form stable arches or pipes, by the use of a conical insert. A method is given for the design of the insert, and methods of estimating the pressure on the insert are also described.