Method of and apparatus for contacting running webs with...

Details Method of and apparatus for contacting running webs with... Method of and apparatus for contacting running webs with...

D - Textiles, Paper

21

F

92/10

D21F 7/00 (2006.01)

Patent

CA 1296937

ABSTRACT Steam is blown against one side of a running web of moist fibrous material in a paper making machine through a first set of apertures in the wall of an apparatus which defines a first chamber for supplying steam to the first set of apertures, a second chamber which supplies steam to a second set of apertures upstream of the first set, and a third chamber which supplies steam to a third set of apertures downstream of the first set. The apertures of the first set discharge jets of steam at right angles to the plane of the adjacent portion of the running web, the apertures of the second set discharge jets of steam which draws some atmospheric air toward the jets issuing from the first set of apertures, and the jets of steam issuing from the third set of apertures also draw air toward the region where the jets issuing from the first set of apertures impinge upon the web so that steam is less likely to escape from the treating zone and that each increment of the running web is contacted by a preselected quantity of steam. - 1 -

543965

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