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1. (WO1998051858) DEVICE FOR DRYING OR HEAT TREATMENT OF A MATERIAL WEB
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/051858 International Application No.: PCT/SE1998/000860
Publication Date: 19.11.1998 International Filing Date: 12.05.1998
Chapter 2 Demand Filed: 20.11.1998
IPC:
D21F 5/18 (2006.01) ,F26B 3/28 (2006.01) ,F26B 13/20 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
F
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5
Dryer section of machines for making continuous webs of paper
18
Drying webs by hot air
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
26
DRYING
B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
3
Drying solid materials or objects by processes involving the application of heat
28
by radiation, e.g. from the sun
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
26
DRYING
B
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
13
Machines or apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
10
Arrangements for feeding, heating, or supporting materials; Regulating movement, tension, or position of materials
20
Supporting materials by fluid jets, e.g. air
Applicants: HALLDIN, Claes[SE/SE]; SE (UsOnly)
ABB FLÄKT AKTIEBOLAG[SE/SE]; Sickla Allé 13, Nacka S-120 86 Stockholm, SE (AllExceptUS)
Inventors: HALLDIN, Claes; SE
Agent: JENKLER, Malte ; Asea Brown Boveri AB Patent, Stockholm Office S-120 86 Stockholm, SE
Priority Data:
9701800-613.05.1997SE
Title (EN) DEVICE FOR DRYING OR HEAT TREATMENT OF A MATERIAL WEB
(FR) DISPOSITIF DESTINE A UN TRAITEMENT DE SECHAGE OU DE CHAUFFAGE D'UNE BANDE CONTINUE DE MATERIAU
Abstract:
(EN) A device for drying or heat treatment of a material web (1), preferably a web of cellulose and/or wood fibre, such as paper, pulp or fibreboard, by means of blow boxes (2, 7) in a plant through which the material web (1) is being advanced. The blow boxes (2, 7) have walls (3a, 3b) facing towards the material web (1) and extending essentially in parallel therewith, and side-walls (4a, 4b) extending essentially perpendicularly to the material web. Said parallel walls (3a, 3b) extend over essentially the entire width of the material web. The blow boxes have in their said parallel walls (3a, 3b) a plurality of nozzle openings (6, 8) for heat transfer by convection to the material web (1). The walls (3a, 3b) facing towards the material web (1) and extending essentially in parallel therewith, and the side-walls (4a, 4b) extending essentially perpendicularly to the material web have a surface structure, which has an emission coefficient in the range of 0.7 - 1.0, for heat transfer by radiation from the surfaces of the walls (3a, 3b, 4a, 4b) to the material web (1).
(FR) L'invention concerne un dispositif permettant un traitement de séchage ou de chauffage d'une bande continue (1), de préférence, en cellulose et/ou en fibres de bois, telle que du papier, de la pâte à papier ou du carton compact, au moyen de caissons de soufflage (2, 7) d'une installation de production alimentée en bande continue (1). Les caissons de soufflage (2, 7) possèdent des parois (3a, 3b) faisant face à la bande continue (1) et sensiblement parallèles à la bande, et des parois latérales (4a, 4b) sensiblement perpendiculaires à la bande continue. Les parois parallèles (3a, 3b) s'étendent sensiblement sur toute la largeur de la bande. Les parois parallèles (3a, 3b) des caissons de soufflage sont dotées d'une pluralité de nez de buses (6, 8) pour la convection thermique par transfert de chaleur à la bande continue (1). Les parois (3a, 3b) faisant face à la bande continue (1) et sensiblement parallèles à la bande, et les parois latérales (4a, 4b) sensiblement perpendiculaires à la bande ont une structure superficielle dont le coefficient d'émission se situe dans la plage de 0,7 à 1,0 pour le transfert de chaleur par rayonnement à partir des surfaces des parois (3a, 3b, 4a, 4b) vers la bande (1).
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, 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, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, 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: English (EN)