Global Patent Index - EP 0911445 A3

EP 0911445 A3 20000426 - Apparatus for making or processing a web material

Title (en)

Apparatus for making or processing a web material

Title (de)

Maschine zur Herstellung oder Bearbeitung einer Materialbahn

Title (fr)

Appareil pour la fabrication ou le traitement d'un matériau en bande

Publication

EP 0911445 A3 20000426 (DE)

Application

EP 98112622 A 19980708

Priority

  • DE 19742856 A 19970929
  • DE 19752562 A 19971127

Abstract (en)

[origin: EP0911445A2] The paper making or paper finishing machine has at least one blowing chamber (19) to direct a hot gas at the web (3) and/or supporting belt (13). The gas is a combustion gas or is heated by a combustion gas. Exhaust from the blowing chamber (19) and/or fresh air is fed to the hot gas. The heater (17,17') burns oil or a combustion gas. One burner (17) is within a drying cylinder (7,9) and a heater (17') is opposite the cylinder (7,9) or deflection roller (11). Where the machine (1) is for paper making, the cylinders (7,9) and/or blowing chamber (19) are in the drying section (5) and/or press section and/or in the wet section of the paper making machine. The blowing chamber (19) has a number of zones across the direction (15) of web travel to cover the web width, preferably supplied separately with the hot gas. A control system sets the temp. and/or gas vol. at the blower zones. The cylinders (7,9) are heated to a temperature of 100-400 [deg]C and preferably 160-350 [deg]C. The hot gas has a temperature of 150-600 [deg]C and preferably 250-450 [deg]C.

IPC 1-7

D21F 5/04; D21F 5/02

IPC 8 full level

D21F 5/02 (2006.01); D21F 5/18 (2006.01); D21F 5/20 (2006.01)

CPC (source: EP)

D21F 5/025 (2013.01); D21F 5/18 (2013.01); D21F 5/20 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0911445 A2 19990428; EP 0911445 A3 20000426

DOCDB simple family (application)

EP 98112622 A 19980708