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    Method for making cellulosic web with reduced energy input
    3.
    发明授权
    Method for making cellulosic web with reduced energy input 失效
    制造具有减少能量输入的纤维素网的方法

    公开(公告)号：US6096169A

    公开(公告)日：2000-08-01

    申请号：US961916

    申请日：1997-10-31

    申请人： Michael Alan Hermans ,  Sherry Lynn Behnke ,  Robert Irving Gusky ,  Frank Stephen Hada

    发明人： Michael Alan Hermans ,  Sherry Lynn Behnke ,  Robert Irving Gusky ,  Frank Stephen Hada

    IPC分类号： D21F1/76 ,  D21F1/48 ,  D21F1/52 ,  D21F5/02 ,  D21F5/14 ,  D21F5/18 ,  D21F11/00 ,  D21F11/14 ,  D21H27/00

    CPC分类号： D21F11/145 ,  D21F1/48 ,  D21F1/52 ,  D21F11/006 ,  D21F11/14

    摘要： A noncompressive dewatering device generates air streams that can be used to remove water from cellulosic webs in an energy efficient manner. Further, a wet-pressed machine can be modified to economically produce low-density tissue with an energy/capital efficiency greater than that of the throughdrying process. For instance, a cellulosic web can be non-compressively dewatered from a post forming consistency to a consistency from about 25 percent to the water retention consistency by passing air through the web with an Energy Efficiency at least 10 percent greater than that achievable using vacuum dewatering at the same speed. In particular embodiments, the web may be non-compressively dewatering to a consistency of at least 70 percent of the water retention consistency using about 13 or less horsepower per inch of sheet width, or to a consistency of at least 80 percent of the water retention consistency using about 30 or less horsepower per inch of sheet width, both at a speed of 2500 feet per minute or greater.

    摘要翻译： 非压缩性脱水装置产生空气流，其可用于以能量有效的方式从纤维素网中除去水。 此外，可以修改湿压机以经济地生产能量/资本效率大于穿透干燥过程的能量/资本效率的低密度组织。 例如，纤维素网可以通过使空气通过幅材使能量效率比使用真空脱水可达到的效率高至少10％，从形成后形成稠度的非压缩脱水到约25％的稠度。 以相同的速度。 在具体实施方案中，所述纤维网可以使用每英寸片材宽度约13或更小的马力或至少80％的保水性的稠度将非压缩性脱水至至少70％的保水性稠度的稠度 一致性使用每英寸片材宽度约30或更小的马力，以2500英尺/分钟或更高的速度。