Screen for collection and distribution of process streams

Details Screen for collection and distribution of process streams Screen for collection and distribution of process streams

1979-12-26

1981-06-30

Garris, Bradley

Chemical apparatus and process disinfecting, deodorizing, preser

Elements or adjuncts

Bed support means

34 57A, 55494, 55518, 2104971, 210498, 21049701, 422143, 422216, 422218, B01J 800, B01J 812, B01J 844

Patent

active

042762650

ABSTRACT:
Screen for use in collecting and/or distributing process flow streams has profiled surface wires welded to channel-shaped support members and is preferably made by helically wrapping and welding a profiled surface wire around the elongated channel members which are rotated about the screen axis to produce a cylindrical slotted screen which is then cut along a line parallel to its axis, flattened, and either used flat or rerolled and welded at right angles to its original direction so that the channels form hoop-like supports. The channels are preferably apertured to such an extent that the total open area for an inlet stream flow on the channel side of the screen is less than the open area of the slots on the wire side of the screen. Also, it should be noted that the outer edge of each leg portion of each of the channel members is positioned so close to the outer edge of a leg portion of an adjacent channel member that substantially all of the process stream will flow through the aperatures. Thus, the pressure drop through the screen is controlled by the apertures in the channels with the result that the screen surface can be provided with slot widths of optimum size relative to the particle size of material to be contacted thereby.

REFERENCES:
patent: 1930128 (1933-10-01), Lund
patent: 2046458 (1936-07-01), Johnson
patent: 2609888 (1952-09-01), Beringer
patent: 3027244 (1962-03-01), Byrne et al.
patent: 3706536 (1972-12-01), Greenwood et al.
patent: 4068713 (1978-01-01), McGuire
patent: 4090852 (1978-05-01), Dowd
patent: 4096911 (1978-06-01), Geske

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