Title:
化学パルプを蒸煮する連続法における木節(きぶし)の再循環
Document Type and Number:
Japanese Patent JP3723573
Kind Code:
B2
Abstract:
PCT No. PCT/SE94/01135 Sec. 371 Date Nov. 6, 1995 Sec. 102(e) Date Nov. 6, 1995 PCT Filed Nov. 28, 1994 PCT Pub. No. WO95/23257 PCT Pub. Date Aug. 31, 1995The present invention relates to a process for continuous cooking of chemical pulp, in which the chips are fed into a chip chute (3), which is arranged on top of a high pressure feeder (4) for passing the chips into a downstream, pressurized continuous digester housing comprising a vertical, elongate digester (5) into which the chips are fed at the top and from which the cooked pulp is fed out at the bottom, in order thereafter to be defibred and washed, after which the defibred pulp is screened, and an accepted flow of pulp is obtained which is fed onwards for continued treatment, and a reject flow is obtained which consists principally of knots, which reject flow is thus separatedoff from the pulp flow, the reject flow, which consists principally of knots, being returned to the chip chute (3), preferably after concentration and washing.
Inventors:
Antbacka, Elisabeth
Antbacka, Stig
Bergkvist, Andaz
Antbacka, Stig
Bergkvist, Andaz
Application Number:
JP52228795A
Publication Date:
December 07, 2005
Filing Date:
November 28, 1994
Export Citation:
Assignee:
Quevernel Pulping Activolag
International Classes:
D21C3/22; D21C3/24; D21C7/00; D21C9/00; (IPC1-7): D21C7/00; D21C3/22
Domestic Patent References:
| JP49117705A | ||||
| JP5270101A |
Attorney, Agent or Firm:
Nobuyuki Kaneda
Ishibashi Masayuki
Ishibashi Masayuki
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