公开(公告)号：US6063238A

公开(公告)日：2000-05-16

申请号：US73192

申请日：1998-05-06

Applicant: Anders Bergqvist ,  Johan Engstrom

Inventor： Anders Bergqvist ,  Johan Engstrom

IPC: D21C3/22 ,  D21C3/24 ,  D21C7/14 ,  D21C11/00

CPC classification number: D21C3/24 ,  D21C11/0021 ,  D21C3/22 ,  D21C7/14

Abstract: The present invention relates to a digester and a method for continuously cooking kraft pulp in a single-vessel system (1), preferably a single-vessel hydraulic digester, with chips (2) being fed in at a first end (3) of the digester (1), white liquor (4) being added at at least one position at or near the said first end (3), the chips being impregnated in a cocurrent impregnation zone (5), the chips being cooked in a cooking zone (6) downstream of the impregnation zone, hot black liquor (7) being extracted from at least one extraction strainer section (8), and cooked pulp being discharged (9) at the other end of the digester, and hot black liquor (7) being added (11), (12) to the said impregnation zone (5), and the extract (13) from the first strainer section (14), which is arranged downstream of the position of addition (11a) of the said hot black liquor (7), being largely removed from the digester.

Abstract translation: 本发明涉及一种蒸煮器和一种在单容器系统（1）中连续烹制牛皮纸浆的方法，优选单容器液压消化器，其中芯片（2）在第一端（3）处进料 蒸煮器（1），在所述第一端（3）处或附近的至少一个位置处加入白液（4），将所述碎片浸渍在并流浸渍区（5）中，将所述碎片在烹饪区（ 6）在浸渍区的下游，从至少一个提取过滤器部分（8）提取热黑液（7），煮熟的纸浆在蒸煮器的另一端排出（9），热黑液（7） 在所述浸渍区域（5）中添加（11），（12）和来自所述第一过滤器部分（14）的提取物（13），其位于所述热黑色的添加位置（11a）的下游 酒（7），大部分从蒸煮器中取出。

公开(公告)号：US5192494A

公开(公告)日：1993-03-09

申请号：US752517

申请日：1991-08-29

Applicant: Kurt M. Becker ,  Johan Engstrom

Inventor： Kurt M. Becker ,  Johan Engstrom

IPC: G21C9/004 ,  G21C9/016 ,  G21C13/10

CPC classification number: G21C13/10 ,  G21C9/016 ,  Y02E30/40

Abstract: A penetration (51) through the bottom of a pool in the reactor containment below a reactor vessel is protected against the effects of a core meltdown, by the penetration (51) being surrounded by a pipe (60) having an inlet (61) located below the surface (31) of the water and above the highest level (41) which the bed (4) of granulate formed by the descending molten core material could be expected to reach. The pipe (60) has an outlet (62) at its lower end, located in the bed (4). The gap (64) between the penetration (51) and the pipe (60) is covered by a screen (7) which prevents granulate from entering. Granulate is also prevented from entering the outlet (62). The pool water flows in through the inlet (61), down through the gap (64), out through the outlet (62) and into the particle bed (4) where the water is vaporized and rises through the bed without obstructing the flow of water through the gap for cooling the penetration. The pipe (60) prevents contact between the particle bed (4) and the penetration (51). Said pipe is cooled by the flow of water through the gap (64) and promotes improved cooling of the particle bed.

Abstract translation: PCT No.PCT / SE90 / 00147 Sec。 371日期1991年8月29日 102（e）日期1991年8月29日PCT 1990年3月7日PCT PCT。 出版物WO90 / 10936 1990年9月20日，通过被管道（60）围绕的穿透（51），通过在反应器容器下方的反应堆容器中的池底部的穿透（51）被保护免受核心熔化的影响， 具有位于水的表面（31）下方并且在最高水平（41）下方的入口（61），所述最高水位（41）可以预期到达下降熔融芯材料形成的颗粒床（4）。 管（60）在其下端具有位于床（4）中的出口（62）。 穿透（51）和管（60）之间的间隙（64）由防止颗粒进入的筛网（7）覆盖。 还防止了颗粒物进入出口（62）。 池水通过入口（61）通过间隙（64）向下流过出口（62）并进入颗粒床（4），在那里水被蒸发并且上升通过床而不阻碍 水通过间隙冷却渗透。 管（60）防止颗粒床（4）和穿透部（51）之间的接触。 所述管道通过水流通过间隙（64）冷却，并促进颗粒床的改进的冷却。