Patent ID: 6494609
Filing Date: 2002-12-17
Classification: B01F,B28B,B28C

Abstract:
An apparatus for delivering an additive-enhanced slurry for use in making gypsum wallboard, and configured for connection to a centrifugal mixer with a tangential discharge outlet, comprising:a conduit having a main inlet in slurry receiving communication with the mixer outlet and extending to a spout for discharging the slurry proximate a wallboard forming area; at least one volume restrictor associated with said conduit for creating back pressure between said volume restrictor and the mixer outlet for keeping the mixer full; and at least one pressure reducer associated with said discharge spout and configured for reducing the pressure of the slurry dispensed from said discharge spout; wherein said apparatus is configured for maintaining a generally laminar flow from the mixer outlet to said discharge spout.