Processing

Please wait...

Settings

Settings

Goto Application

1. WO1990012919 - DEWATERING DEVICE

Publication Number WO/1990/012919
Publication Date 01.11.1990
International Application No. PCT/SE1990/000168
International Filing Date 15.03.1990
Chapter 2 Demand Filed 22.08.1990
IPC
B01D 33/11 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
33Filters with filtering elements which move during the filtering operation
06with rotary cylindrical filtering surfaces, e.g. hollow drums
11arranged for outward flow filtration
B01D 37/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
37Processes of filtration
02Precoating the filtering elements or material; Addition of filter aids to the liquid being filtered
B30B 9/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
9Presses specially adapted for particular purposes
02for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
12using pressing worms or screws co-operating with a permeable casing
D21C 9/18 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
18De-watering
D21F 1/66 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
1Wet end of machines for making continuous webs of paper
66Pulp catching, de-watering, or recovering; Re-use of pulp-water
CPC
B01D 2201/287
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2201Details relating to filtering apparatus
28Position of the filtering element
287Filtering elements with a vertical or inclined rotation or symmetry axis
B01D 33/11
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
33Filters with filtering elements which move during the filtering operation
06with rotary cylindrical filtering surfaces, e.g. hollow drums
11arranged for outward flow filtration
B01D 33/466
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
33Filters with filtering elements which move during the filtering operation
44Regenerating the filter material in the filter
46by scrapers, brushes ; nozzles; or the like acting on the cake-side of the filtering element
466scrapers
B01D 33/50
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
33Filters with filtering elements which move during the filtering operation
44Regenerating the filter material in the filter
48by flushing, e.g. counter-current air-bumps
50with backwash arms, shoes or nozzles
B01D 33/70
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
33Filters with filtering elements which move during the filtering operation
70having feed or discharge devices
B01D 37/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
37Processes of filtration
02Precoating the filter medium; Addition of filter aids to the liquid being filtered
Applicants
  • SUNDS DEFIBRATOR INDUSTRIES AKTIEBOLAG [SE]/[SE] (AllExceptUS)
  • HODÉN, Ebbe [SE]/[SE] (UsOnly)
Inventors
  • HODÉN, Ebbe
Agents
  • SUNDQVIST, Hans
Priority Data
8901373-417.04.1989SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEWATERING DEVICE
(FR) DISPOSITIF D'EGOUTTAGE
Abstract
(EN)
A dewatering device for pulp suspensions, comprising a rotatable screening cylinder (1). In the screening cylinder a rotatable shaft (3) is located which is provided with a screw thread (7) for conveying the pulp through the screening cylinder (1) while dewatering the same due to the effect of the centrifugal force. Between the screw thread (7) and screening cylinder (1) a gap (8) is formed, in which a layer of pulp can be deposited on the inside of the screening cylinder (1) in order thereby to act as a filter medium, through which the dewatering takes place.
(FR)
Dispositif d'égouttage pour suspension de pâtes, comprenant un cylindre de tamisage rotatif (1) dans lequel est placé une tige rotative (3) pourvue d'un filetage (7) pour amener la pâte à travers le cylindre de tamisage (1) tout en égouttant ladite pâte par l'effet de la force centrifuge. Entre le filetage (7) et le cylindre de tamisage (1) on crée un écartement (8) dans lequel on peut déposer une couche de pâte à l'intérieur du cylindre de tamisage (1) de sorte que ladite couche agisse sous forme de milieu de filtrage, à travers lequel s'effectue l'égouttage.
Also published as
Latest bibliographic data on file with the International Bureau