Non-pulpables collection chamber with removable basket for solid waste pulpers

US5551641A · kind A · utility

Assignee

• United States of America as represented by the Secretary of the Air Force · US

Inventors

• William K. Upton, III · Chester, US
• William E. Schneider · White Pine, US
• Stuart H. Brown · San Rafael, US
• Steven A. Stetz · Stevensville, US
• Emily J. Gotich · Crofton, US
• Jack L. McCrea · Pittsburgh, US

Key dates

• Filing date: Sep 30, 1994
• Grant date: Sep 3, 1996
• Expiry date: Sep 30, 2014

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21B1/345
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A pulper includes a pulping chamber, a pulping mechanism, and a non-pulpas collection chamber attached to a bottom of the pulping chamber below a top of the pulping mechanism in an annular area outside of the pulping mechanism. The collection chamber includes a container with openings at first and second ends; a basket having an opening at a first end and disposed inside the container wherein at least a bottom portion of the basket includes perforations; a pipe connection located at the second end of the container; means for removing the basket from the container; and means for preventing material from entering a space between the basket and the container; wherein the first end of the container is inserted into the pulping chamber. The collection chamber does not interfere with the fluid flow around the pulping mechanism and can collect a relatively large amount of non-pulpables without requiring pulper shutdown.