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    • 9. 发明申请
    • Method and Apparatus for Drying a Moving Web of Material at a Paper or Board Machine
    • 用于在纸或纸板机器上干燥移动的材料网的方法和装置
    • US20090133282A1
    • 2009-05-28
    • US11988553
    • 2006-07-20
    • Jari RasanenSeppo Karine
    • Jari RasanenSeppo Karine
    • F26B3/00F26B11/02
    • D21F5/024D21F5/028D21F5/06F26B13/008F26B13/183
    • The invention relates to a method and an apparatus for drying a moving web of material at a paper or board machine. The drying is performed by a heated drying cylinder (1) transverse to the direction of travel of the web, past which the web is being led. According to the invention, the drying cylinder (1) has been constructed so that its temperature can be adjusted independently at different locations in the longitudinal direction of the cylinder, i.e. the transverse direction of the web. With the adjustability of the drying cylinder it is possible to eliminate moisture differences occurring in the transverse direction of the web in connection with the drying. Especially, it is possible to eliminate moisture lines in the longitudinal direction of the web, which are generated when forming the web on the wire. The drying can be done by independently adjustable resistance wires (12) arranged at different locations of the cylinder, by heating vapour supplied independently to different zones of the cylinder, or by using both drying methods simultaneously in the same drying cylinder.
    • 本发明涉及一种用于在纸或纸板机上干燥材料的移动幅材的方法和装置。 干燥通过横向于幅材行进方向的加热的干燥筒(1)进行,通过该纸幅被引导。 根据本发明,干燥筒(1)已经被构造成使得其温度可以在圆筒的纵向方向(即幅材的横向)上的不同位置处独立地调节。 利用干燥筒的可调性,可以消除与干燥相关的幅材在横向方向上发生的水分差异。 特别地,可以消除在网上形成网状物时产生的幅材纵向上的湿气线。 干燥可以通过独立调节的电阻丝(12)来完成,该电阻丝布置在圆筒的不同位置,通过加热独立于汽缸的不同区域提供的蒸气,或者通过同时使用两种干燥方法在相同的干燥筒中进行。