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1. (WO1998049391) OUTLET ARRANGEMENT IN A PRESSURE VESSEL FOR THE BLEACHING OF PULP
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049391 International Application No.: PCT/SE1997/000729
Publication Date: 05.11.1998 International Filing Date: 30.04.1997
Chapter 2 Demand Filed: 09.11.1998
IPC:
B01J 3/02 (2006.01) ,D21C 9/10 (2006.01) ,D21C 9/16 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
3
Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
02
Feed or outlet devices therefor
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9
After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
10
Bleaching
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9
After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
10
Bleaching
16
with per compounds
Applicants:
KVAERNER PULPING AB [SE/SE]; P.O. Box 1033 S-651 15 Karlstad, SE (AllExceptUS)
OLSSON, Hans [SE/SE]; SE (UsOnly)
SCHILDT, Yrjö [FI/SE]; SE (UsOnly)
Inventors:
OLSSON, Hans; SE
SCHILDT, Yrjö; SE
Agent:
KYLIN, Peter; Kvaerner Pulping AB P.O. Box 1033 S-651 15 Karlstad, SE
Priority Data:
Title (EN) OUTLET ARRANGEMENT IN A PRESSURE VESSEL FOR THE BLEACHING OF PULP
(FR) SYSTEME D'EVACUATION D'UNE CUVE SOUS PRESSION DESTINEE AU BLANCHIMENT DE PATE A PAPIER
Abstract:
(EN) The present invention relates to a pressure vessel (1) with an output arrangement (5), primarily for use with pulp bleaching using peroxide at high temperature and high pressure, comprising a pressure vessel housing (1), a first end (2), as well as an output arrangement (3) at a second end, whereby the output arrangement (3) comprises an output scraper (4) with at least one scraper arm (5), as well as at least one cleansing member (6), a driving arrangement (7), a driving axle (8), a bearing (9), a supporting structure (10) for the driving arrangement (7), a normally open first outlet (11), as well as, preferably, a normally closed second outlet, whereby the first outlet (11) and the second outlet (12) are provided in the wall (1) of the pressure vessel.
(FR) L'invention concerne une cuve sous pression (1) pourvue d'un système d'évacuation (5). Principalement utilisée lors du blanchiment au peroxyde de la pâte à papier à haute température et haute pression, cette cuve comprend une enveloppe (1), une première extrémité (2) ainsi qu'un système d'évacuation (3) au niveau d'une deuxième extrémité. Le système d'évacuation (3) comprend une raclette d'évacuation (4) dotée d'au moins un bras racleur (5) et d'au moins un élément de nettoyage (6), un système d'entraînement (7), un arbre d'entraînement (8), un palier (9), une structure porteuse (10) destinée au système d'entraînement (7), une première sortie (11) normalement ouverte, et, de préférence, une seconde sortie normalement fermée. La première sortie (11) et la seconde sortie (12) sont réalisées dans la paroi (1) de la cuve sous pression.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
EP0981663US6096170AU1997031968