Global Patent Index - EP 0733735 B1

EP 0733735 B1 20010124 - Wet end of a papermachine

Title (en)

Wet end of a papermachine

Title (de)

Nasspartie einer Papiermaschiene

Title (fr)

Partie humide d'une machine à papier

Publication

EP 0733735 B1 20010124 (DE)

Application

EP 96102508 A 19960220

Priority

DE 19509522 A 19950320

Abstract (en)

[origin: EP0733735A2] A wet end section of a paper machine has a distributor with several outlets, into which is fed the main stream of a pulp suspension, the outlets being connected via part-stream lines to a machine-width flow chamber which has a machine-width delivery nozzle. The part-stream lines are connected (directly or indirectly) to the flow chamber. At least one rotating sheet-forming screen is mounted downstream from the nozzle, the screen being provided with at least one receiver trough and opt. a screen water tank for the water collected in the trough. Dilution water lines for injecting the screen water into the part-stream lines in order to adjust the pulp density. The dilution lines are connected directly to the receiver trough or the pipeline system of the screen water tank, and/or the dilution water lines or the main stream lines or the part-stream lines are provided with inlets for chemicals such as retention aids or for additional pulp suspensions and fine-substance suspensions.

IPC 1-7

D21F 1/08; D21F 1/66

IPC 8 full level

D21F 1/08 (2006.01); D21F 1/66 (2006.01)

CPC (source: EP US)

D21F 1/08 (2013.01 - EP US); D21F 1/66 (2013.01 - EP US)

Designated contracting state (EPC)

AT DE FR SE

DOCDB simple family (publication)

EP 0733735 A2 19960925; EP 0733735 A3 19980114; EP 0733735 B1 20010124; AT E198917 T1 20010215; DE 19509522 A1 19960926; DE 19509522 C2 19990311; DE 59606354 D1 20010301; US 5958189 A 19990928

DOCDB simple family (application)

EP 96102508 A 19960220; AT 96102508 T 19960220; DE 19509522 A 19950320; DE 59606354 T 19960220; US 61874896 A 19960320