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1. 发明申请

WO1998033973A1 POCKET VENTILATION AND SHEET SUPPORT SYSTEM IN A PAPERMAKING MACHINE DRYER SECTION 审中-公开
标题翻译：造纸机干燥器部分的通风通风和支撑系统
公开(公告)号：WO1998033973A1
公开(公告)日：1998-08-06
申请号：PCT/US1997022394
申请日：1997-12-05
申请人： BELOIT TECHNOLOGIES, INC.
发明人： BELOIT TECHNOLOGIES, INC. , BISCHEL, Kevin, H. , GRUNDER, Thomas, K.
IPC分类号： D21F05/04
CPC分类号： D21F5/046
摘要： A dryer section in a papermaking machine has two reversing rolls (18, 20) to form a pocket between each pair of dryers (16, 22) in a dryer tier (15). The first reversing roll (18) is a vacuum roll and the second reversing roll (20) is a grooved roll. A blow box (24) is disposed between the two rolls; the blow box provides suction for the grooved roll and provides vacuum which restrains a web on the dryer fabric (12) as it travels between the first and the second rolls. The blow box (24) also provides a supply of make-up air which extends in a cross machine direction along the pocket formed by the two reversing rolls. The blow box also supports a pivoting foil (54) which is positioned against the dryer fabric (12) as it moves from a first dryer (16) towards the first reversing roll (18). The foil (54) defines a region of low pressure which restrains the web as it travels between the first dryer and the first reversing roll.
摘要翻译：在造纸机中的干燥部具有两个反向辊（18,20），以在干燥器层（15）中的每对干燥器（16,22）之间形成一个袋。第一换向辊（18）是真空辊，第二换向辊（20）是带槽辊。吹风箱（24）设置在两个辊之间; 吹风箱为带槽辊提供抽吸，并提供真空，当干燥器织物（12）在第一和第二辊之间行进时，限制干燥器织物（12）上的幅材。吹气箱（24）还提供补充空气的供应，其沿着沿两个反向辊形成的袋的横向方向延伸。吹风箱还支撑枢转箔片（54），当从第一干燥器（16）朝着第一换向辊（18）移动时，该箔片（54）抵靠干燥器织物（12）定位。箔片（54）限定了当纸幅在第一干燥器和第一反转辊之间行进时限制纸幅的低压区域。

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