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    • 7. 发明申请
    • DUAL FEED FLOW SYSTEM APPARATUS FOR A PAPER WEB COATER
    • 用于纸张网纸的双向送料系统装置
    • WO1998021408A1
    • 1998-05-22
    • PCT/US1997020459
    • 1997-11-12
    • BELOIT TECHNOLOGIES, INC.LI, Alfred, C.OSBURN, Andrew, W.BECKER, Rex, A.LAN, Xuekui
    • BELOIT TECHNOLOGIES, INC.
    • D21H23/22
    • D21H23/22B05C5/0254B05C11/10
    • A flow system apparatus has a dual chamber for directing countercurrent flows of coating within the chambers from inlet to exit ends in each chamber. Each chamber has a plurality of longitudinally extending flow openings for permitting the coating flowing within a chamber to exit from the chamber in a direction substantially perpendicular to the longitudinal flow within the chamber. The flow openings in both of the chambers are connected to a mixing chamber where their flows are combined to be directed into a coater head for application to a traveling paper web substantially uniformly along an opening extending across the web substantially perpendicular to the direction of web travel. In a preferred embodiment, control of the flow of the aqueous slurry near the edges of the traveling paper web is effected by a plurality of control openings extending between the dual chambers near their inlet and exit ends. The overflow from the exit ends of each of the dual chambers can either be recycled into the system producing the aqueous flow, or it can be redirected into the inlet ends of either of the dual chambers.
    • 流动系统装置具有双室,用于引导室内的涂层的逆流,从每个室中的入口到出口端。 每个腔室具有多个纵向延伸的流动开口,用于允许涂层在腔室内沿着与腔室内的纵向流动方向基本垂直的方向从腔室中流出。 两个室中的流动开口连接到混合室,其中它们的流动被组合以被引导到涂布机头部中,以沿着基本上垂直于卷筒纸行进方向延伸穿过卷筒纸的开口基本上均匀地施加到行进纸幅 。 在优选实施例中,通过在它们的入口端和出口端附近的双室之间延伸的多个控制开口来控制在行进纸幅的边缘附近的含水浆料的流动。 每个双室的出口端的溢流可以再循环到产生水流的系统中,或者可以被重定向到两个室中的任一个的入口端。