| 摘要 |
<p>The invention relates to a method and an apparatus for drying a paper web or the like. In the invention the web (5) to be dried is transferred on a felt (6) between bands (1, 2) moving around as an endless loop. The band (1) making contact with the web (5) is heated by means of a steam chamber (3), and the band (2) making contact with the felt (6) is supported and cooled within the area of the steam chamber by means of supporting and cooling means. For providing a rapid compensation of pressure differences, the supporting and cooling means is formed by a hydrostatic plate (4) comprising a plurality of pressure pockets (7) and return conduits (8) separated from each other by means of ridges (9). Water is fed into the pressure pockets (7) so that it enters the return conduits (9) over the ridges (9). The pressure of the return conduits (8) is adjusted on the basis of the pressure of the steam contained in the steam chamber (3).</p> |
