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    • 4. 发明申请
    • PAPER STOCK SHEAR AND FORMATION CONTROL
    • 纸张剪切和成形控制
    • WO9938101A9
    • 1999-10-21
    • PCT/US9901672
    • 1999-01-26
    • HONEYWELL MEASUREX CORPHAGART ALEXANDER CLAUDHU HUNG TZAWWATSON DAVID
    • HAGART-ALEXANDER CLAUDHU HUNG-TZAWWATSON DAVID
    • D21F1/02D21G9/00G06F19/00G06F17/00G06G7/66
    • D21G9/0027
    • System and method for producing paper are provided. The system controls formation of wet stock comprising fibers on a moving water permeable wire of a de-watering machine (76) that has a refiner that is subject to a variable load and a headbox (74) having at least one slice, wherein each slice has an aperture through which wet stock is discharged at a certain stock jet speed onto the wire that is moving at a certain wire speed. The system includes: (a) at least two water weight sensors (84) that are positioned at different locations in the direction of movement of the wire and upstream from a dry line which develops during operation of the machine and the sensors generate signals indicative of a water weight profile made up of a multiplicity of water weight measurements (102); and (b) means (110) for adjusting at least one of the stock jet speed, wire speed, or to cause the water weight profile to match a preselected or optimal water weight profile.
    • 提供了用于生产纸张的系统和方法。 该系统控制包括具有经受可变负荷的磨浆机的脱水机器(76)的移动的水可渗透的金属丝上的包含纤维的湿料的形成,以及具有至少一个切片的流浆箱(74),其中每个切片 有一个孔,通过该孔将湿料以一定的原料射流速度排放到以一定线速移动的线上。 该系统包括:(a)至少两个水分重量传感器(84),所述水分重量传感器定位在线的移动方向上的不同位置处以及在机器的操作期间形成的干线的上游,并且传感器生成指示 由多个水重量测量值(102)组成的水重量分布图; 和(b)用于调节原料射流速度,线速度中的至少一个或使水分重量分布与预选或最佳水分重量分布匹配的装置(110)。