公开(公告)号：US6432264B2

公开(公告)日：2002-08-13

申请号：US90002701

申请日：2001-07-09

Applicant: ANDRITZ INC

Inventor： PROUGH J ROBERT ,  JOHANSON JERRY R

IPC: D21C1/00 ,  D21C7/08 ,  D21C7/12

CPC classification number: D21C7/08

Abstract: In a cellulose pulp handling vessel having a first diameter material storing or treating portion above a second diameter discharge which is at least 20% less than the first diameter, reduced compression of the material and reduced power requirements of an agitator (if used), compared to prior art constructions are provided. A first transition, preferably a substantially smooth interior surface substantially frusto-conical transition, is provided between the first and second diameters. A second single-convergent transition may be provided above the first transition. A rotating agitator with at least two arms and associated paddles may be mounted for rotation in the transition about a substantially vertical axis for agitating the material in the transition. If desired, the transition may be moved, such as with a vibrator or oscillator. The invention is particularly suitable for pulp digesters and impregnation vessels.

Abstract translation: 在具有比第一直径小至少20％的第二直径排出口上方的第一直径材料储存或处理部分的纤维素纸浆处理容器中，材料的减小的压缩和搅拌器的功率要求（如果使用的话）被比较 提供了现有技术的结构。 在第一直径和第二直径之间提供第一过渡，优选地基本上平滑的内表面基本上截头圆锥形过渡。 可以在第一过渡之上提供第二单收敛过渡。 具有至少两个臂和相关桨叶的旋转搅拌器可以被安装成围绕基本上垂直的轴线在转变中旋转以在过渡中搅拌材料。 如果需要，可以移动转换，例如用振动器或振荡器。 本发明特别适用于纸浆消化器和浸渍容器。