Global Patent Index - EP 2831340 A1

EP 2831340 A1 20150204 - MACHINE FOR DEWATERING PULP

Title (en)

MACHINE FOR DEWATERING PULP

Title (de)

MASCHINE FÜR DIE ENTWÄSSERUNG VON ZELLSTOFF

Title (fr)

MACHINE DESTINÉ AU SÉCHAGE DE LA CELLULOSE

Publication

EP 2831340 A1 20150204 (DE)

Application

EP 13700233 A 20130115

Priority

  • DE 102012204937 A 20120328
  • EP 2013050646 W 20130115

Abstract (en)

[origin: WO2013143713A1] The invention relates to a machine (100) for dewatering pulp (1), comprising a former (2) with a lower wire (3) and an upper wire (4), which, at least over certain lengths, form a twin wire zone (5) and which are guided over a deflection roller (7) with the pulp (1) which lies therebetween and has been applied to the lower wire (3) from a headbox (5), wherein a pre-dewatering zone (8) formed from a portion of the lower wire (3) is arranged upstream of the twin wire zone (5) in the direction (S) of movement of the lower wire (3), said pre-dewatering zone spanning a plane (8.E), wherein a further deflection roller (12) guiding both wires (3, 4) is arranged downstream of the deflection roller (7) in the direction (S) of movement of the lower wire (3), wherein both the deflection roller (7) and also the further deflection roller (12) are spatially arranged above the plane (8.E) spanned by the pre-dewatering zone (8). The machine (100) according to the invention is characterised in that at least one of the deflection rollers (7, 12), preferably both deflection rollers (7, 12), are designed with an open roller sleeve (7.M, 12.M) having at least one suction or pressure zone (16).

IPC 8 full level

D21F 9/00 (2006.01); D21F 1/80 (2006.01); D21F 3/10 (2006.01)

CPC (source: EP)

D21F 1/80 (2013.01); D21F 3/10 (2013.01); D21F 9/003 (2013.01)

Citation (search report)

See references of WO 2013143713A1

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 2013143713 A1 20131003; CN 104246071 A 20141224; EP 2831340 A1 20150204

DOCDB simple family (application)

EP 2013050646 W 20130115; CN 201380019964 A 20130115; EP 13700233 A 20130115