PRESS SECTION AND PERMEABLE BELT IN A PAPER MACHINE

摘要

A belt press for a paper machine is provided. The belt press comprises: a roll comprising an exterior surface; a permeable belt comprising a first side and being guided over a portion of the exterior surface of said roll; the permeable belt having a tension of at least approximately 30 KN/m; the first side having an open area of at least approximately 25% a contact area of at least approximately 10%, preferably a contact area of at least 25%. The arrangement allows for a much longer press nip, which results in much lower peak pressures with enhanced dewatering of the continuous web as compared to a conventional shoe press.