EP 3036371 B1 20170419 - PRESSURE SCREEN
Title (en)
PRESSURE SCREEN
Title (de)
DRUCKSORTIERER
Title (fr)
CLASSEUR SOUS PRESSION
Publication
Application
Priority
- DE 102013216433 A 20130820
- EP 2014067209 W 20140812
Abstract (en)
[origin: WO2015024812A1] The invention relates to a pressure screen for cleaning a fibrous stock suspension having a screen element (2) which is of rotationally symmetrical configuration about a screen axis (1) and divides the pressure screen into an inlet chamber (3) and an accepted stock chamber (4), wherein the inlet chamber (3) is connected at one axial end to a suspension inlet (5) and at the opposite axial end to a reject outlet (6), and the accepted stock chamber (4) is connected to an accepted stock outlet (7), and a rotor (8) with rotor vanes (9) is situated in the inlet chamber (3), the rotational axis (10) of which rotor (8) corresponds to the screen axis (1), and which rotor (8) rotates relative to the screen element (2), wherein the rotor vanes (9) are arranged distributed over a plurality of circumferential planes (11) of the rotor (8) which run perpendicularly with respect to the rotational axis (10). Here, the energy consumption and the risk of clogging can be reduced by virtue of the fact that the width of the annular gap (12) between the rotor (8) and the screen element (2) decreases from the suspension inlet (5) to the reject outlet (6). (Figure 1)
IPC 8 full level
D21D 5/02 (2006.01)
CPC (source: EP US)
B07B 1/20 (2013.01 - US); B07B 1/24 (2013.01 - US); D21D 5/02 (2013.01 - US); D21D 5/023 (2013.01 - US); D21D 5/026 (2013.01 - EP US); B07B 1/18 (2013.01 - US); B07B 1/22 (2013.01 - US)
Citation (opposition)
Opponent : Andritz Fiedler GmbH
- FR 1448814 A 19660812 - INGERSOLL RAND CANADA, et al
- EP 2602386 A1 20130612 - VOITH PATENT GMBH [DE]
- GB 2222967 A 19900328 - VOITH GMBH J M [DE]
- STRAHLER G. ET AL: "Progress in Fiber Screening", PROFESSIONAL PAPERMAKING, July 2004 (2004-07-01), pages 15 - 20, XP055452429
- J.M. VOITH GMBH: "Sortiermaschinen", PROSPEKT P 2555, 2000, pages 1 - 20, XP055452439
- AFT- GLOBAL: "AFT EP Rotor", FLYER
Opponent : Firma Andritz Fiedler GmbH
- FR 1448814 A 19660812 - INGERSOLL RAND CANADA, et al
- EP 2602386 A1 20130612 - VOITH PATENT GMBH [DE]
- GB 2602386 A 20220629 - BLUEFIN TRADING LTD [GB]
- G. STRAHLER ET AL.: "Progress in Fiber Screening", PROFESSIONAL PAPERMAKING 1, 2004, pages 15 - 20, XP055452429
- MIT UNSERERSEITS ZUR ERLÄUTERUNG HANDSCHRIFTLICH MARKIERTEN, pages 17 und 18
- "Vertikalsichter Größen 20.... 22", PROSPEKT P 2555 ÜBER SORTIERMASCHINEN ALS VOITH-DRUCK, vol. 4, no. 89, 2000, pages 13, XP055454784
- "Flyer über AFT EP Rotor zur Verdeutlichung und Veranschaulichung des in E1a auf Seite 18 oben beschriebenen und gezeigten Rotors mit einer Beschreibung der vorteilhaften Eigenschaften dieses Rotors", AFT-GLOBAL, pages 1
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
DOCDB simple family (publication)
WO 2015024812 A1 20150226; CN 105473783 A 20160406; CN 105473783 B 20180206; DE 102013216433 A1 20150312; EP 3036371 A1 20160629; EP 3036371 B1 20170419; JP 2016531215 A 20161006; JP 6377159 B2 20180822; US 2016158804 A1 20160609; US 9855585 B2 20180102
DOCDB simple family (application)
EP 2014067209 W 20140812; CN 201480046387 A 20140812; DE 102013216433 A 20130820; EP 14750229 A 20140812; JP 2016535412 A 20140812; US 201615044658 A 20160216