Capillary dewatering method and apparatus

Details Capillary dewatering method and apparatus Capillary dewatering method and apparatus

1994-11-23

1997-02-04

Kwon, John T.

Drying and gas or vapor contact with solids

Process

Gas or vapor pressure is subatmospheric

34412, 34453, F26B 504

Patent

active

055986439

ABSTRACT:
Disclosed is a method for reducing the moisture content of a paper web in a papermaking process from in the range of 10% to 32% dry to the range of 33% to 50% dry wherein the embryonic web is supported on a knuckled through drier fabric and lightly pressed between the knuckled through drier fabric and a capillary membrane of a capillary dewatering roll. The capillary membrane has capillary pores therethrough which have a substantially straight through, non-tortuous path with a pore aspect ratio of from about 2 to about 20. A vacuum is drawn within the capillary dewatering roll which is not greater than the negative capillary suction pressure of the capillary pores.

REFERENCES:
patent: 1549338 (1925-08-01), Tompkins
patent: 1833910 (1931-12-01), Parker
patent: 1834852 (1931-12-01), Kutter
patent: 2083817 (1937-06-01), Berry
patent: 2209759 (1940-07-01), Berry
patent: 3262840 (1966-07-01), Hervey
patent: 3327866 (1967-06-01), Pall
patent: 3468242 (1969-09-01), Schaffrath
patent: 3771236 (1973-11-01), Candor et al.
patent: 4076582 (1978-02-01), Burkhart
patent: 4357758 (1982-11-01), Lampinen
patent: 4551894 (1985-11-01), Beucker
patent: 4556450 (1985-02-01), Chuang et al.
patent: 4584058 (1986-04-01), Lehtinen et al.
patent: 5242644 (1993-09-01), Thompson et al.
VA Strainer.TM. Brochure, published by Albany International Albany Engineered Systems.
Jones Polydisk Filter Operation Manual, No. BI-M67-01, published by E. D. Jones Corporation, Pittsfield, MA, 1968.

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