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2. 发明公开

EP0344941A1 Hydraulic headbox of a paper or board making machine 失效
标题翻译： Hydraulicischer AuflaufkastenfürPapier- oder Kartonmaschinen。
公开(公告)号：EP0344941A1
公开(公告)日：1989-12-06
申请号：EP89304902.3
申请日：1989-05-16
申请人： Valmet-Karhula Inc.
发明人： Nyman, Tapani , Rommi, Vesa , Wikman, Kai
IPC分类号： D21F1/02 , D21F1/06
CPC分类号： D21F1/065 , D21F1/02 , D21F1/026 , D21F1/028
摘要： The invention relates to a headbox for a paper or board making machine, particularly a hydraulic headbox, comprising an inlet header section (1) with a manifold tube section (2) and an equalizing chamber (3) in the stock suspension flow route, a turbulence generator section (4) following the equalizing chamber (3), subsequent to which a tapered slice section (8) is located and through which the stock suspension is discharged onto the wire. The headbox also comprises an attenuation chamber (6) for pressure variations, which defines one or more air spaces (7) under the flow channel of the stock suspension, the spaces being connected with the flow channel by means of a connecting channel (5). The air space or spaces (7) are preferably confined by subjacent frame structures comprising a bottom wall (16) and vertical walls (18) and walls (19) defining the flow channel from below.
摘要翻译：本发明涉及一种用于纸或纸板制造机，特别是液压流浆箱的流浆箱，其包括在料液悬浮流动路径中具有歧管管段（2）和均化室（3）的入口集管部分（1），在均压室（3）之后的湍流发生器部分（4），随后在其中定位有锥形切片部分（8），并且通过其将浆料悬浮物排放到丝线上。流浆箱还包括用于压力变化的衰减室（6），其限定在悬浮液的流动通道下面的一个或多个空气空间（7），空间通过连接通道（5）与流动通道连接，。空气空间（7）优选地由包括底壁（16）和垂直壁（18）的下部框架结构和从下方限定流动通道的壁（19）限制。

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