Method of, and means for, reducing the liquid content of air-per

Details Method of, and means for, reducing the liquid content of air-per Method of, and means for, reducing the liquid content of air-per

1979-03-12

1981-05-12

Moore, Christopher K.

Cleaning and liquid contact with solids

Processes

Including use of vacuum, suction, or inert atmosphere

15302, 15306A, 15307, 15345, 26 81, 26 85, 34 23, 34 34, B08B 504

Patent

active

042669839

ABSTRACT:
A method of reducing the liquid content of air-permeable material in tubular form, especially for reducing the moisture content of tubular fabric, involves moving the tube of material longitudinally through a device for applying suction to the outer surface of the tube, either in a single area which extends all round the tube or in a plurality of areas which together extend substantially all round the tube.
Means for carrying the method into effect may comprise one or more hollow members defining a frame to surround the tube of material from which liquid is to be removed. Each hollow member has apertures in its inwardly-facing wall, each of which apertures communicates with the hollow interior of its hollow member, and means is provided for creating a sub-atmospheric pressure in each hollow member. Preferably, the apertures are in the form of elongate slots having a length considerably greater than their width, and the axis of each slot is inclined at an angle of from 5 to 10 degrees to the direction of advance of the tubular fabric.
The liquid extraction means may be combined with hot air drying apparatus disposed downstream of the suction applying means and/or with squeeze rollers disposed upstream of the suction applying means.

REFERENCES:
patent: 1236359 (1917-08-01), Reynolds
patent: 1964691 (1934-06-01), Shippling
patent: 2597801 (1952-05-01), Elliott
patent: 3466695 (1969-09-01), McCallister
patent: 3653425 (1972-04-01), Elliott et al.
patent: 3654659 (1972-04-01), Blumenthal

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