公开(公告)号：US6053439A

公开(公告)日：2000-04-25

申请号：US908988

申请日：1997-08-08

申请人： Ralph E. Locke ,  Gary N. Prentice ,  Christopher M. Vitori

发明人： Ralph E. Locke ,  Gary N. Prentice ,  Christopher M. Vitori

IPC分类号： B02C19/00 ,  D21B1/32 ,  D21D5/02 ,  B02C19/12 ,  B02C23/08

CPC分类号： D21D5/026 ,  D21B1/32 ,  Y02W30/646

摘要： A system and method for treating a waxed fiber paper product with a high wax content to remove a substantial portion of the wax content includes the pulping of the wax paper fiber at an elevated temperature in excess of the melting temperature of the wax to separate a pulp fraction and to form an emulsion of water and molten wax. The pulp fraction is separated from the emulsion by filtering in a reverse pressure screen in which a finely perforated screen defines a high pressure side and a low pressure side, and a major portion of the water/emulsion is removed from the suspension through the screen perforations leading from the high pressure side to the low pressure side, in which a rotor and foil arrangement within the reverse screen is operated under such conditions that the suspension at the high pressure side of the screen is maintained in a constant fluidized condition.

摘要翻译： 用于处理具有高蜡含量的蜡纤维纸产品以除去蜡部分的大部分的系统和方法包括在超过蜡的熔融温度的升高的温度下制蜡纸纤维以分离纸浆 并形成水和熔融蜡的乳液。 通过在其中精细穿孔的筛网限定高压侧和低压侧的反压筛中过滤将纸浆级分与乳液分离，并且大部分水/乳液通过筛孔从悬浮液中除去 从高压侧到低压侧，其中反转屏幕内的转子和箔布置在这样的条件下操作，即在屏幕的高压侧的悬浮液保持在恒定的流化状态。