Steam shower and vacuum apparatus and method of using same

Details Steam shower and vacuum apparatus and method of using same Steam shower and vacuum apparatus and method of using same

D - Textiles, Paper

21

F

D21F 5/14 (2006.01) D21F 7/00 (2006.01) F26B 13/02 (2006.01) F26B 13/10 (2006.01)

Patent

CA 2075993

2075993 9113205 PCTABS00007 Method and system for applying steam to a paper forming web for the purpose of heating the web to improve the quality of the paper, and withdrawing steam through the use of a vacuum (21) opposite the steam shower (10), by the simultaneously controlled removal of steam at equally spaced increments by the use of a computer based control system (40). The computer based control system (40) uses a selectively actuable stepper motor (110), to effectuate the simultaneous opening of both the steam valve and opposing withdrawal means valve. The system includes a coanda nozzle (18) to cause steam to travel between the sheet (28) and the adjacent surface of the apparatus in a direction opposite to the direction of travel of the sheet (28). Therefore, the apparatus includes a means for creating, housing and providing a supply of steam and a supply of vacuum.

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