Title:
【発明の名称】区分けされた圧力スクリーン
Document Type and Number:
Japanese Patent JP2001503823
Kind Code:
A
Abstract:
A pressure screen 10 for screening a suspension of papermaking stock comprises cylindrical screen means 20 arranged for outward flow filtration, with a drum-type rotor 15 mounted within it. The screening means 20 is divided into a plurality of annular screening zones 22. Positioned between these zones are outlets 30 for rejects. These intermediate outlets shorten the distance that unwanted materials must move across the screen, and promote an even concentration of rejects on the screen surface. The stock is introduced through inlet 12 into the interior of rotor 15, which has holes 35 for directing the stock towards each of the screening zones 22. Accepted material passing through the screening zones is removed through accepts outlet 40, whereas rejected material having passed through one of the outlets 30 is removed through a common rejects outlet 48.
Inventors:
Pimley, John Jay
Application Number:
JP52267998A
Publication Date:
March 21, 2001
Filing Date:
November 11, 1997
Export Citation:
Assignee:
BC Acquisition Corp.
International Classes:
B01D29/25; B01D29/11; B07B1/20; D21D5/02; (IPC1-7): D21D5/02; B01D29/25
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)