EP 3012370 A1 20160427 - Waste sludge recycling apparatus and method for recycling of waste sludge
Title (en)
Waste sludge recycling apparatus and method for recycling of waste sludge
Title (de)
Klärschlammrecyclingvorrichtung und -verfahren zur Wiederverwendung von Klärschlamm
Title (fr)
Appareil de recyclage de boues de déchets et procédé de recyclage de boues résiduaires
Publication
Application
Priority
EP 14189919 A 20141022
Abstract (en)
The present invention relates to a waste sludge recycling apparatus for a multilayer headbox being capable of supplying liquids onto a wire in a layered manner for forming a multilayer fiber web and including a plurality of manifolds to form corresponding layers of the multilayer fiber web in a forming section of a fiber web making machine, comprising a waste sludge recirculation means configured to be connected to at least one of the manifolds of the multilayer headbox for supplying waste sludge to be recycled to the at least one of the manifolds. Further, a waste sludge recycling method for forming a multilayer fiber web is provided, which comprises the steps of supplying liquids in a layered manner onto a wire of a forming section of a fiber web making machine via a multilayer headbox including a plurality of manifolds to form corresponding layers of the multilayer fiber web, and recirculating and supplying waste sludge to be recycled to at least one of the manifolds of the multilayer headbox.
IPC 8 full level
D21F 1/02 (2006.01); D21F 1/66 (2006.01); D21F 9/00 (2006.01)
CPC (source: EP)
D21F 1/022 (2013.01); D21F 1/66 (2013.01); D21F 9/006 (2013.01)
Citation (search report)
- [XY] EP 0479141 A1 19920408 - ESCHER WYSS GMBH [DE]
- [Y] EP 0751253 A2 19970102 - MARCAL PAPER MILLS INC [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3012370 A1 20160427; EP 3012370 B1 20180815; CN 105544271 A 20160504; CN 105544271 B 20180102
DOCDB simple family (application)
EP 14189919 A 20141022; CN 201510507454 A 20150818