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21. 发明公开

EP1552053A1 A CONTINUOUS PROCESS FOR THE COOKING OF CELLULOSE-BESED PULP AND A PULP DIGESTER APPLICABLE FOR THE SAME 审中-公开
标题翻译： PASS方法沸腾纸浆，有适用COOKER
公开(公告)号：EP1552053A1
公开(公告)日：2005-07-13
申请号：EP03738162.1
申请日：2003-07-14
申请人： Stora Enso Oyj
发明人： MÄÄTTÄNEN, Ari-Pekka , SONNI, Hannu
IPC分类号： D21C3/24 , D21C9/02
CPC分类号： D21C7/14 , D21C3/24 , D21C7/08 , D21C9/02
摘要： The invention relates to a continuous method for cooking cellulose-based pulp and to a pulp digester suitable for the method. In continuously operating cooking, the fibrous pulp moves downwards in a vertical cooking vessel (1), whose upper part forms a cooking zone (2) and lower part forms a pulp counter-current washing zone (3) for cooked pulp, and is removed as cooked pulp from the lower end of the vessel to an exhaust pipe (9). In the invention, the liquid phase in the washing zone of the cooking vessel is separated and transferred as wash liquor to a location higher than the separation point (10) and also to the lower part of the cooking vessel to form diluting liquor reducing pulp consistency. The invention has the special purpose of reducing fibre agglomeration and scuffing, which damages fibres and deteriorates the strength properties of cooked pulp removed from the vessel.

22. 发明授权

EP1205597B1 Process for continuous cooking of pulp 有权
标题翻译：一种用于纸浆的连续蒸煮方法
公开(公告)号：EP1205597B1
公开(公告)日：2005-02-23
申请号：EP01203823.8
申请日：2001-10-09
申请人： KVAERNER PULPING AB
发明人： Snekkenes, Vidar , Gustavsson, Lennart , Olsson, Sven-Erik
IPC分类号： D21C3/24 , D21C9/04
CPC分类号： D21C9/04 , D21C3/24

23. 发明公开

EP1470288A1 CONTINUOUS COOKING OF CELLULOSE PULP WITH IMPROVED HEAT ECONOMY 有权转让
标题翻译：具有改进的热经济连续煮浆
公开(公告)号：EP1470288A1
公开(公告)日：2004-10-27
申请号：EP03731867.2
申请日：2003-01-22
申请人： KVAERNER PULPING AB
发明人： SNEKKENES, Vidar , GUSTAVSSON, Lennart
IPC分类号： D21C3/24
CPC分类号： D21C3/24 , D21C7/14
摘要： A method for the continuous cooking of chemical pulp with the aim of achieving improved heat economy in a digester system comprising a vessel (1) for impregnation and a vessel (2) for cooking the impregnated cellulose chips. A part of the black liquor (14) withdrawn from the digester (2) is added at the beginning of a transfer system (4) having maintained essentially the withdrawl temperature, increasing the temperature of the chips mixture in the transfer system (4). A fraction of the transport fluid (10) from the transfer system (4) that is continuously withdrawn from the impregnated chips fed into the top of the digester is returned to the impregnation vessel (1) at essentially maintained transfer temperature, at a location before the said transfer system (4), seen from the point of view of the direction of flow of the chips.

24. 发明授权

EP0988414B1 METHOD FOR CONTINUOUS COOKING IN A SINGLE-VESSEL DIGESTER 失效
标题翻译： METHOD FOR连续蒸煮在单个容器炊具
公开(公告)号：EP0988414B1
公开(公告)日：2003-07-30
申请号：EP97932061.1
申请日：1997-06-13
申请人： Kvaerner Pulping AB
发明人： SNEKKENES, Vidar , GUSTAVSSON, Lennart
IPC分类号： D21C3/24 , D21C7/06
CPC分类号： D21C7/06 , D21C3/24
摘要： A method for continuous cooking of kraft pulp in a single-vessel system (1), with chips and liquor being conveyed from a high-pressure feeder (2) in a transfer line (2A) to a first end (3) of the digester (1), a part of said liquor being separated from the chips, being withdrawn from an outlet (4A) in the upper part of the digester and conveyed in a return line (4B) to the high-pressure feeder (2). A constituent flow of liquor (5) is led from the return line (4B), is heated and is fed via one or more inlets (5A) into the digester (1) at a location downstream of said outlet (4A) for the return line (4B).

25. 发明公开

EP1308554A2 Dissolved solids control in pulp production 失效
标题翻译：纸浆生产中的溶解固体控制
公开(公告)号：EP1308554A2
公开(公告)日：2003-05-07
申请号：EP02078828.7
申请日：1994-02-25
申请人： Andritz Inc.
发明人： Marcoccia, Bruno S. , Prough, Robert J. , Laakso, Richard O. , Phillips, Joseph R. , Ryham, Rolf C. , Richardsen, Jen T., Andritz-Ahlstrom Inc. , Chasse, Fred R.
IPC分类号： D21C7/12 , D21C3/24 , D21C7/14
CPC分类号： D21C3/02 , D21C3/22 , D21C3/224 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21C11/0021 , D21C11/04 , D21G7/00
摘要： A continuous digester (189) has a top and a bottom, an inlet for cellulosic fibrous material to be digested at the top of the digester, and an outlet for digested pulp at the bottom of the digester: a top screen assembly (190) for withdrawing liquid from the top of the digester; an extraction screen assembly (206) below the top screen assembly (190); a cooking screen assembly (196) between the extraction screen assembly (206) and the bottom of the digester; means (197) for withdrawing liquid passing through the cooking screen assembly (196) and passing a first portion thereof to recovery, a second portion remaining; means (201, 202) for adding low DOM liquid to said second portion to provide an augmented second portion; and means (199, 203, 204) for recirculating said augmented second portion to the interior of the digester at about the level of said cooking screen assembly (196).
摘要翻译：连续蒸煮器（189）具有顶部和底部，用于在蒸煮器顶部消化的纤维素纤维材料的入口以及在蒸煮器底部用于消化纸浆的出口：顶部筛网组件（190），用于从蒸煮器顶部排出液体; 在顶部筛子组件（190）下方的提取筛子组件（206）; 在提取筛组件（206）和蒸煮器底部之间的烹饪筛组件（196）用于抽出通过烹饪筛子组件（196）的液体并使其第一部分通过回收的装置（197），剩余的第二部分; 用于将低DOM液体添加到所述第二部分以提供增大的第二部分的装置（201,202）和用于在所述烹饪筛子组件（196）的大约水平处将所述增大的第二部分再循环至所述蒸煮器内部的装置（199,203,204）。

26. 发明公开

EP1203841A1 Process for continuous cooking of pulp 审中-公开
标题翻译：连续蒸煮纸浆的过程
公开(公告)号：EP1203841A1
公开(公告)日：2002-05-08
申请号：EP01203810.5
申请日：2001-10-08
申请人： Kvaerner Pulping AB
发明人： Snekkenes, Vidar , Gustavsson, Lennart , Olsson, Sven-Erik
IPC分类号： D21C3/24 , D21C9/04
CPC分类号： D21C3/24 , D21C9/04
摘要： The invention relates to a process for continuous cooking of wood chips at elevated pressure and temperature in a vertical digester (1) for production of chemically dissolved pulp.
Fibre material and cooking liquor are introduced at the top of the digester and pulp is discharged from the bottom of the digester (1), via a line (20) in which the pulp is maintained at substantially the same pressure level, to a pressurized wash (7). More than 50% of the used cooking liquor (black liquor) which is extracted from the system in total is extracted from the wash filtrate of the pressurized wash. At the same time a small portion of the wash filtrate is also to be recirculated to the bottom of the digester as dilution liquid. The pressurized wash is regulated so that a high temperature is maintained in the wash filtrate.
The invention permits increased production in overloaded digesters where substantial extractions of cooking liquor from the digester are made difficult by the increased pulp speed down through the digester.
摘要翻译：本发明涉及一种在垂直蒸煮器（1）中在提高的压力和温度下连续蒸煮木片以生产化学溶解的纸浆的方法。纤维材料和蒸煮液在蒸煮器的顶部引入，并且纸浆从蒸煮器（1）的底部通过其中纸浆保持在基本相同压力水平的管线（20）排出到加压清洗器（7）。总体上从系统中提取的用过的蒸煮液（黑液）的50％以上从加压清洗液的洗液中提取。同时，一小部分洗涤滤液也作为稀释液再循环到蒸煮器的底部。调节加压洗涤物以使洗涤滤液中保持高温。本发明允许在过载的消化器中增加产量，在消化器中，由于增加的纸浆速度通过消化器而使从消化器中大量提取的蒸煮液变得困难。

27. 发明授权

EP0837965B1 IMPREGNATION OF FIBER MATERIAL 失效
标题翻译：浸渍纤维材料
公开(公告)号：EP0837965B1
公开(公告)日：2001-10-17
申请号：EP96923152.1
申请日：1996-07-02
申请人： KVAERNER PULPING AB
发明人： ENGSTRÖM, Johan , HÖGLUND, Olav
IPC分类号： D21C3/24
CPC分类号： D21C3/24 , D21C1/06
摘要： A method for cooking chips which are impregnated, in a vessel (3), with liquid in first and second concurrent impregnation zones (A, B), impregnation liquid being supplied, in a mixture with steamed chips, through a feeding system to the first impregnation zone, and liquid for recovery being extracted at a first point (41) at the end of the first impregnation zone, and further liquid being supplied to the second impregnation zone (B). According to the invention, liquid is extracted at a second point (43) at the start of the second impregnation zone (B) and is circulated in an impregnation circulation (44, 45) which empties out at the center of the vessel at a point between said first and second points (41, 43) for extraction of liquid so that a flow of liquid is established from the center of the vessel in a radial direction. Said further liquid is supplied to the impregnation circulation for continued impregnation of the chips in the second impregnation zone.

28. 发明授权

EP0407370B1 High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips 失效
标题翻译：纸浆蒸煮与由与黑液蒸木片磺化高硫化度。
公开(公告)号：EP0407370B1
公开(公告)日：1994-06-15
申请号：EP90890179.6
申请日：1990-06-07
申请人： KAMYR AB
发明人： Richter, Johan C.F.C.
IPC分类号： D21C11/00 , D21C3/24 , D21C3/02 , D21C7/00
CPC分类号： D21C7/00 , D21C3/02 , D21C3/24 , D21C11/00

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