Steam distribution apparatus

Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force

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Details

34155, 34160, 162290, 162359, 2395533, 239568, D21F 500

Patent

active

043983553

ABSTRACT:
A steam distribution apparatus has a first header having an inlet for steam and a plurality of discrete outlets for steam arranged along the header. The outlets increase in size with distance from the inlet. A first chamber surrounds the first header to receive steam from the outlets in the first header. There are first, relatively large outlets in the first chamber. The relative positions of the first header and the first chamber ensure that steam leaving the plurality of outlets in the first header impinges on the interior of the chamber and must travel around the chamber to reach the first outlets in the first chamber. A second chamber communicates with the first outlets from the first chamber. There are outlets in the second chamber. A shrouding is positionable above a paper web and communicates with the elongate outlets in said second chamber. The apparatus permits uniform steam flow along the entire length of the distributor.

REFERENCES:
patent: 4253247 (1981-03-01), Bergstrom
patent: 4268976 (1981-05-01), Dove

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