Liquid purification or separation – Processes – Separating
Patent
1990-08-24
1992-10-20
Silverman, Stanley S.
Liquid purification or separation
Processes
Separating
210791, 210383, 210396, 210411, 210414, 210415, 162 56, 162380, B01D 2962, B01D 3346
Patent
active
051567504
ABSTRACT:
In the inventive method and apparatus for the continuous discharge of water and fine particles from a suspension, particularly fibrous pulp, the pulp or suspension is thickened without forcing the removal of water through a relatively thick, uncontrollably gathered fiber mat. In the method, the suspension to be thickened is fed into a filtering chamber, the suspension is continuously mixed for equalizing consistency differences, the liquid is continuously removed from the suspension through a filter and the thickness of a fiber mat which forms on the filter surface is controlled by subjecting the mat to shear stresses. In a thickening apparatus for practicing this method, at least one of co-operating surfaces--i.e. the filtering surface (8) and its counter-surface (10)--is provided with loosening members (12) for non-mechanically limiting the thickness of a fiber mat forming on the filtering surface and thereby preventing the uncontrolled formation of such a mat on the filtering surface (8).
REFERENCES:
patent: 1866970 (1932-07-01), Garland
patent: 2900926 (1960-01-01), McKee
patent: 3029951 (1962-04-01), Cannon
patent: 3174622 (1965-03-01), Lamort
patent: 3363759 (1968-01-01), Clarke-Pounder
patent: 3455821 (1969-07-01), Aremaa
patent: 3581893 (1971-06-01), Rich
patent: 3586172 (1971-06-01), Young
patent: 3680696 (1972-08-01), Morin
patent: 3814246 (1974-06-01), Wilson et al.
patent: 3849302 (1974-11-01), Seifert
patent: 4188286 (1980-02-01), Holz
patent: 4276159 (1981-06-01), Lehman
patent: 4351728 (1982-09-01), Egelhof et al.
patent: 4491501 (1985-01-01), Klein
patent: 4749474 (1988-06-01), Young
patent: 4855038 (1989-08-01), Le Blanc
patent: 4932633 (1933-10-01), Haug
patent: 4954249 (1990-09-01), Gero et al.
patent: 4975204 (1990-12-01), Henricon et al.
Chemical Abstracts, vol. 95, No. 8, Aug. 24, 1981, p. 99, Columbus, Ohio.
Chemical Abstracts, vol. 103, No. 8, Aug. 26, 1985, p. 90, Columbus, Ohio.
Henricson Kaj
Makela Mika
Niskanen Toivo
Pikka Olavi
Vikman Vesa
A. Ahlstrom Corporation
Silverman Stanley S.
Upton Christopher
LandOfFree
Method and apparatus for thickening a fiber suspension and remov does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for thickening a fiber suspension and remov, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for thickening a fiber suspension and remov will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-190067