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1. 发明申请

WO1998021408A1 DUAL FEED FLOW SYSTEM APPARATUS FOR A PAPER WEB COATER 审中-公开
标题翻译：用于纸张网纸的双向送料系统装置
公开(公告)号：WO1998021408A1
公开(公告)日：1998-05-22
申请号：PCT/US1997020459
申请日：1997-11-12
申请人： BELOIT TECHNOLOGIES, INC. , LI, Alfred, C. , OSBURN, Andrew, W. , BECKER, Rex, A. , LAN, Xuekui
发明人： BELOIT TECHNOLOGIES, INC.
IPC分类号： D21H23/22
CPC分类号： D21H23/22 , B05C5/0254 , B05C11/10
摘要： 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.
摘要翻译：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。

2. 发明申请

WO1999000548A1 METHOD AND APPARATUS FOR THE HIGH SPEED APPLICATION OF COATING TO A TRAVELING PAPER WEB 审中-公开
标题翻译：用于高速应用涂料到旅行纸上的方法和装置
公开(公告)号：WO1999000548A1
公开(公告)日：1999-01-07
申请号：PCT/US1997017417
申请日：1997-09-26
申请人： BELOIT TECHNOLOGIES, INC. , LAN, Xuekui , GEORGE, Brian, J.
发明人： BELOIT TECHNOLOGIES, INC.
IPC分类号： D21H23/32
CPC分类号： B05C11/025 , B05C3/18 , B05C9/04 , D21H23/32
摘要： Apparatus (20, 20b) for coating a traveling paper web (w) includes a coater head (22, 22b) for applying a film of an aqueous slurry of coating material either directly to the paper web, which is supported on the surface of a rotating backing roll (14, 14b), or to the surface of a backing roll (14, 14c') which in turn applies the film to the paper web (w) which is nipped between two backing rolls. The coater head (22, 22b-d) includes an inlet (24, 24b) for receiving fresh coating material which is introduced into a mixing chamber (26, 26b). A looped flow path is established within the coater head which includes a feed channel (28, 28b) extending from the mixing chamber (26, 26b) and leading into a coating chamber (18, 18b) where one portion of the coating material proceeds in the direction of the rotating backing roll while another portion of the coating material exits the feed channel in the opposite direction over a baffle (30, 30b). The aqueous slurry of coating material near the downstream end of the coating chamber enters a recirculation channel from which it is directed through a plurality of flow metering orifices (58, 58b) back into the mixing chamber (26, 26b). This looped flow pattern operates to greatly reduce both the entrainment of air in the coating material in the application chamber and the quantity fresh coating material needed properly to coat the paper web, particularly at relatively high speeds desired. The application chamber can either include or not include a flexible blade (36, 36b). A rotating metering bar (40, 40b) is mounted on the coater head downstream of the coating chamber to meter the coating material applied to either the paper web or the backing roll.
摘要翻译：用于涂布行进纸幅（w）的装置（20,20b）包括涂布机头（22,22a），用于将涂料的水性浆料的膜直接施加到纸幅上，所述纸幅被支撑在旋转的背衬辊（14,14b）或背衬辊（14,14c'）的表面，该背衬辊（14,14c'）又将薄膜施加到被夹在两个支承辊之间的纸幅（w）上。涂布机头（22，22b-d）包括用于接收被引入到混合室（26,26b）中的新鲜涂料的入口（24,24b）。在涂布机头内部建立了循环流路，其包括从混合室（26,26b）延伸并进入涂覆室（18,18b）的进料通道（28,28b），其中涂料的一部分进行旋转的背衬辊的方向，而涂层材料的另一部分在挡板（30,30b）上沿相反方向离开进料通道。涂覆室下游端附近的涂料的含水浆料进入再循环通道，通过多个流量计量孔（58,58b）从其中引回到混合室（26,26b）中。这种循环流动模式操作以大大减少涂布室中的涂料中的空气的夹带和适当地涂布纸幅所需的新鲜涂料量，特别是在所需的相对高的速度下。施加室可以包括或不包括柔性叶片（36,36b）。旋转的计量杆（40,40b）安装在涂覆室下游的涂布机头上，以测量施加到纸幅或背衬辊上的涂料。

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