EP 3762540 A1 20210113 - SHOE ROLL SYSTEM AND METHOD FOR MONITORING THE TIGHTNESS OF A SHOE ROLL
Title (en)
SHOE ROLL SYSTEM AND METHOD FOR MONITORING THE TIGHTNESS OF A SHOE ROLL
Title (de)
SCHUHWALZENSYSTEM UND VERFAHREN ZUR ÜBERWACHUNG DER DICHTHEIT EINER SCHUHWALZE
Title (fr)
SYSTÈME DE ROULEAU À SABOT ET PROCÉDÉ POUR LA SURVEILLANCE DE L'ÉTANCHÉITÉ D'UN ROULEAU À SABOT
Publication
Application
Priority
- DE 102018105312 A 20180308
- EP 2019054134 W 20190220
Abstract (en)
[origin: WO2019170410A1] The invention relates to a shoe roll system for dewatering or smoothing a running fibrous web, in particular a paper or cardboard web within a machine for producing and/or finishing the fibrous web, comprising at least one shoe roll (1) having a circumferential press jacket (5), and a pressure measuring device (13) for determining the internal gas pressure in the shoe roll, a supply line (16) from a gas supply (10) to a gas inlet into the shoe roll, wherein the supply line has a regulating device (11) for adjusting the amount of gas delivered into the shoe roll, and wherein the shoe roll system has a monitoring device (15) designed to maintain the internal gas pressure at a predetermined target pressure by adjusting the gas delivery amount by means of the regulating device, and to send a signal, in particular to turn off the shoe roll system as soon as the gas delivery amount rises above a predetermined permissible value range. The invention further relates to a method for monitoring the tightness of a shoe roll.
IPC 8 full level
CPC (source: EP)
D21F 3/0218 (2013.01); D21G 1/006 (2013.01)
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)
WO 2019170410 A1 20190912; CN 111819326 A 20201023; CN 111819326 B 20230407; DE 102018105312 A1 20190912; EP 3762540 A1 20210113; EP 3762540 B1 20240807; EP 3762540 C0 20240807
DOCDB simple family (application)
EP 2019054134 W 20190220; CN 201980017329 A 20190220; DE 102018105312 A 20180308; EP 19707733 A 20190220