Patent · US Expired

Process and device to drain a fibrous pulp suspension

US6042735A · kind A · utility

9Cited by

5References

12Claims

0Family size

Assignee

Voith Sulzer Stoffaufbereitung GmbH · DE

Inventors

Axel Gommel · Ravensburg, DE
Herbert Holik · Ravensburg, DE
Josef Schneid · Weingarten, DE

Key dates

Filing date	Aug 29, 1997
Grant date	Mar 28, 2000
Priority date	—
Expiry date	Aug 29, 2017

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21F1/80
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Process and device for draining a fibrous pulp suspension. The process may include positioning two surfaces to converge in a downstream direction, feeding the fibrous pulp suspension between the two converging surfaces, driving at least one of the two converging surfaces to move the suspension with a relative translational velocity, and draining the fibrous pulp suspension through each of the two surfaces. The device may include two arcuate surfaces positioned to form converging surfaces. One of the two arcuate surfaces may include a drivable, pivotable, and rotatable cylinder having an outer sleeve with openings, the other of the two arcuate surfaces may include a screen positioned to be guided around at least a portion of the outer sleeve. The screen and the openings may form drains for draining the fluid pulp suspension.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.