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SYSTEM AND METHOD FOR SCREENING IN A BATCH DIGESTER VESSEL

IP.com Disclosure Number: IPCOM000021066D
Publication Date: 2003-Dec-19

Publishing Venue

The IP.com Prior Art Database

Related People

Inventors:
Nam Hee Shin Patrick Sullivan

Abstract

A method for batch digesting in a vessel have a plurality of vertical screens arranged in an annular array around a circumference of the vessel, wherein the method comprises: injecting a slurry of cellulosic fiber material and cooking liquor into an interior of the vessel; ceasing the injection of the slurry and allowing the liquor to react with the fiber material in the interior of the vessel; extracting a portion of the liquor through the vertical screens and into a chamber on an opposite side of the screens from the interior of the vessel; passing the extracted liquor through a plurality of orifices at a bottom side of the chamber, and the liquor flowing through the orifices passing into a head and out through a port of the vessel.