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1. 发明授权

US06582554B1 Continuous digester having a sectioned top separator with multiple liquor extraction ports 失效
公开(公告)号：US06582554B1
公开(公告)日：2003-06-24
申请号：US10142944
申请日：2002-05-13
申请人： Kaj O. Henricson , C. Bertil Stromberg , Richard Laakso , John F. Bolles , Keith P. Vogel , Patrick J. Sullivan
发明人： Kaj O. Henricson , C. Bertil Stromberg , Richard Laakso , John F. Bolles , Keith P. Vogel , Patrick J. Sullivan
IPC分类号： D21C326
CPC分类号： D21C3/22 , D21C7/14
摘要： A method is disclosed for extracting liquor from a cellulose slurry for a continuous digester comprising the steps of: providing the cellulose slurry of liquor and chips of cellulose fiber material to a separator; extracting a first stream of liquor from the separator; extracting a second stream of liquor from the separator, where the second stream has an effective alkali (EA) concentration greater than the EA concentration of the first steam; outputting the first stream from the separator and outputting the second stream from the separator separately from the second stream, and outputting a condensed slurry from the separator to a digester vessel.

2. 发明授权

US06174411B1 Continuous digester with inverted top separator 有权
标题翻译：连续消化器，倒置顶部分离器
公开(公告)号：US06174411B1
公开(公告)日：2001-01-16
申请号：US09192578
申请日：1998-11-17
申请人： Richard Laakso , C. Bertil Stromberg , Kaj O. Henricson
发明人： Richard Laakso , C. Bertil Stromberg , Kaj O. Henricson
IPC分类号： D21C700
CPC分类号： D21C7/06 , D21C3/24
摘要： A cellulose pulp continuous digester (e.g. for producing kraft pulp) is operated so that it has an inverted top separator and is hydraulically filled to above the level of the inverted top separator, and may be substantially completely hydraulically full. A plurality of different liquor flows may be extracted from the inverted top separator, and an in-line drainer may be provided in a conduit through which liquid is extracted.
摘要翻译：操作纤维素纸浆连续蒸煮器（例如用于生产牛皮纸浆）的操作使得其具有倒置的顶部分离器，并且液压填充到反向顶部分离器的水平面之上，并且可以基本上完全液压地充满。可以从倒置的顶部分离器中提取多个不同的液流，并且可以在导管中设置在线的排水器，通过该导管抽出液体。

3. 发明授权

US06506283B2 Pretreatment of chips before cooking 有权
公开(公告)号：US06506283B2
公开(公告)日：2003-01-14
申请号：US09770408
申请日：2001-01-29
申请人： Kaj O. Henricson , Aki Hannu Vilpponen , Hannu Olavi Ramark , Auvo Kimmo Kettunen , C. Bertil Stromberg
发明人： Kaj O. Henricson , Aki Hannu Vilpponen , Hannu Olavi Ramark , Auvo Kimmo Kettunen , C. Bertil Stromberg
IPC分类号： D21C706
CPC分类号： D21C1/06
摘要： The strength properties of chemical cellulose pulp (particularly kraft pulp) are improved by substituting a cold impregnation soak for conventional impregnation procedures. After steaming, wood chips are soaked in an alkaline liquid at a temperature of about 80-110° C. (preferably 80-100° C., or 90-105° C.) for between one-half-72 hours (typically about 2-4 hours) at a pressure of about 0-15 bar (preferably about 1-5 bar), to dissolve at least about 8% of the wood (preferably about 10-20%) and at least about 15% of the lignin. The alkaline liquid used preferably contains sulfide (e.g. black liquor, green liquor, white liquor, or mixtures thereof), but almost any alkaline liquid having an alkali concentration of about 1.0 mole of NaOH/liter or less (typically about 0.75 m/l or less) is suitable. The wood chips are then raised to a cooking temperature of about 145-180° C. and cooked to produce the cellulose chemical pulp. There may be an intermediate step, between soaking and raising the cooking temperature, of heating the wood chips to a temperature of about 110-150° C. (preferably about 120-140° C.) for about 10-90 minutes (preferably about 10-30 minutes). Alternatively or additionally the majority of the dissolved lignin (and/or other solids) may be removed before raising the wood chips to cooking temperature. The system for treating the wood chips need only include a low pressure soaking vessel (with an associated pump or other transfer device) in addition to conventional equipment.

4. 发明授权

US5958181A Continuous cooking with a two-stage cool impregnation 失效
标题翻译：连续烹饪两阶段浸渍浸渍
公开(公告)号：US5958181A
公开(公告)日：1999-09-28
申请号：US911366
申请日：1997-08-07
申请人： C. Bertil Stromberg , J. Robert Prough , Kaj O. Henricson , Bruno S. Marcoccia
发明人： C. Bertil Stromberg , J. Robert Prough , Kaj O. Henricson , Bruno S. Marcoccia
IPC分类号： D21C1/06 , D21C3/02 , D21C3/24 , D21C3/26
CPC分类号： D21C3/24 , D21C1/06 , D21C3/02
摘要： A method of treating wood chips allows chemical pulp (e. g. kraft pulp) to be produced having enhanced fiber strength properties. In a first zone or stage the chips are cool impregnated (e. g. a temperature of about 60-120.degree. C.) with a first alkali-containing liquid (25-35 g/l expressed as NaOH). In the top of a continuous digester in a second zone or stage the chips are then treated with a second alkali-containing liquid having an alkali concentration at least 5 g/l less than the first liquid (e. g. 10-20 g/l) and a temperature of between about 120-160.degree. C. (e. g. 130-150.degree. C.). An extraction typically takes place to effect the change in treatment zones. After the second zone the chips are cooked at about 140-180.degree. C. (e. g. 150-170.degree. C.), and higher than in the second zone.
摘要翻译：处理木屑的方法允许生产具有增强的纤维强度性质的化学纸浆（例如牛皮纸浆）。在第一区域或阶段中，将芯片用第一含碱液体（25-35g / l，以NaOH表示）进行冷浸渍（例如约60-120℃的温度）。在第二区域或阶段中的连续消化器的顶部，然后用比第一液体（例如10-20g / l）小至少5g / l的碱浓度的第二碱性液体处理切片，和温度在约120-160℃之间（例如130-150℃）。通常会进行提取以实现治疗区域的改变。在第二区之后，将芯片在约140-180℃（例如150-170℃）下煮熟，并高于第二区。

5. 发明授权

US06248208B1 Pretreatment of chips before cooking 失效
标题翻译：烹饪前预处理薯片
公开(公告)号：US06248208B1
公开(公告)日：2001-06-19
申请号：US08460723
申请日：1995-06-02
申请人： Kaj O. Henricson , Aki Hannu Vilpponen , Hannu Olavi Ramark , Auvo Kimmo Kettunen , C. Bertil Stromberg
发明人： Kaj O. Henricson , Aki Hannu Vilpponen , Hannu Olavi Ramark , Auvo Kimmo Kettunen , C. Bertil Stromberg
IPC分类号： D21C102
CPC分类号： D21C1/06
摘要： The strength properties of chemical cellulose pulp (particularly kraft pulp) are improved by substituting a cold impregnation soak for conventional impregnation procedures. After steaming, wood chips are soaked in an alkaline liquid at a temperature of about 80-110° C. (preferably 80-100° C., or alternatively 90-105° C.) for between one-half-72 hours (typically about 2-4 hours) at a pressure of about 0-15 bar (preferably about 1-5 bar), to dissolve at least about 8% of the wood (preferably about 10-20%) and at least about 15% of the lignin. The alkaline liquid used preferably contains sulfide (e.g. black liquor, green liquor, white liquor, or mixtures thereof), but almost any alkaline liquid having an alkali concentration of about 1.0 mole of NaOH/liter or less (typically about 0.75 m/l or less) is suitable. The wood chips are then raised to a cooking temperature of about 145-180° C. and cooked to produce the cellulose chemical pulp. There may be an intermediate step, between soaking and raising the cooking temperature, of heating the wood chips to a temperature of about 110-150° C. (preferably about 120-140° C.) for about 10-90 minutes (preferably about 10-30 minutes). Alternatively or additionally the majority of the dissolved lignin (and/or other solids) may be removed before raising the wood chips to cooking temperature. The system for treating the wood chips need only include a low pressure soaking vessel (with an associated pump or other transfer device) in addition to conventional equipment.
摘要翻译：化学纤维素纸浆（特别是牛皮纸浆）的强度性能通过用常规浸渍方法的冷浸渍浸渍来改善。蒸汽之后，将木屑浸入碱性液体中，温度约为80-110℃（优选80-100℃，或90-105℃）浸渍半个小时之间（通常为约2-4小时），在约0-15巴（优选约1-5巴）的压力下溶解至少约8％的木材（优选约10-20％）和至少约15％木质素。使用的碱性液体优选含有硫化物（例如黑液，绿液，白液或其混合物），但几乎任何碱性浓度为约1.0摩尔NaOH /升或更低（通常约0.75米2 /升）或少）适合。然后将木屑升至约145-180℃的烹饪温度，并煮熟以生产纤维素化学纸浆。在浸泡和提高烹饪温度之间可以有一个中间步骤，将木片加热至约110-150℃（优选约120-140℃）的温度约10-90分钟（优选约为 10-30分钟）。或者或另外，在将木屑升高至烹饪温度之前，可以除去大部分溶解的木质素（和/或其它固体）。用于处理木片的系统除了常规设备之外仅需要包括低压均热容器（具有相关联的泵或其它转移装置）。

6. 发明授权

US06544384B2 Pretreatment of chips before cooking 有权
公开(公告)号：US06544384B2
公开(公告)日：2003-04-08
申请号：US09975984
申请日：2001-10-15
申请人： Kaj O. Henricson , Aki Hannu Vilpponen , Hannu Olavi Ramark , Auvo Kimmo Kettunen , C. Bertil Stromberg
发明人： Kaj O. Henricson , Aki Hannu Vilpponen , Hannu Olavi Ramark , Auvo Kimmo Kettunen , C. Bertil Stromberg
IPC分类号： D21C712
CPC分类号： D21C1/06
摘要： The strength properties of chemical cellulose pulp (particularly kraft pulp) are improved by substituting a cold impregnation soak for conventional impregnation procedures. After steaming, wood chips are soaked in an alkaline liquid at a temperature of about 80-110° C. (preferably 80-100° C., or 90-105° C.) for between one-half-72 hours (typically about 2-4 hours) at a pressure of about 0-15 bar (preferably about 1-5 bar), to dissolve at least about 8% of the wood (preferably about 10-20%) and at least about 15% of the lignin. The alkaline liquid used preferably contains sulfide (e.g. black liquor, green liquor, white liquor, or mixtures thereof), but almost any alkaline liquid having an alkali concentration of about 1.0 mole of NaOH/liter or less (typically about 0.75 m/l or less) is suitable. The wood chips are then raised to a cooking temperature of about 145-180° C. and cooked to produce the cellulose chemical pulp. There may be an intermediate step, between soaking and raising the cooking temperature, of heating the wood chips to a temperature of about 110-150° C. (preferably about 120-140° C.) for about 10-90 minutes (preferably about 10-30 minutes). Alternatively or additionally the majority of the dissolved lignin (and/or other solids) may be removed before raising the wood chips to cooking temperature. The system for treating the wood chips need only include a low pressure soaking vessel (with an associated pump or other transfer device) in addition to conventional equipment.

7. 发明授权

US6024837A Low temperature gas phase continuous digester 失效
标题翻译：低温气相连续蒸煮器
公开(公告)号：US6024837A
公开(公告)日：2000-02-15
申请号：US14243
申请日：1998-01-27
申请人： Richard Laakso , C. Bertil Stromberg , Kaj Henricson
发明人： Richard Laakso , C. Bertil Stromberg , Kaj Henricson
IPC分类号： D21C7/00 , D21C3/22 , D21C3/24 , D21C7/06 , D21C7/10 , D21C7/12
CPC分类号： D21C7/06 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/10
摘要： A cellulose pulp continuous digester (e.g. for producing kraft pulp) is operated so that it has the advantages of a hydraulic digester yet has a gas-filled zone over the liquid level. A slurry of chips and cooking liquor is introduced into the top of the digester vessel through an inverted top separator. A liquid level is established below the inverted top separator, and a chips level is established below the inverted top separator (above or below the liquid level). A gas-filled zone above the liquid level includes compressed gas, and is at a temperature of less than 160 (preferably less than 120).degree. C. and at a pressure of between 50-200 (preferably 80-150) psig. The digester may have a first diameter portion (about 3-5 meters) at the top and a second diameter portion (at least about seven meters) below the top, with the inverted separator in the first diameter portion, the liquid level in the first diameter portion, and the chips level in the second diameter portion. A shoulder is provided between the first and second diameter portions and a withdrawal screen is preferably mounted just below the shoulder in the second diameter portion. A plurality of different liquor flows may be extracted from the inverted top separator.
摘要翻译：操作纤维素纸浆连续蒸煮器（例如，用于生产牛皮纸浆）的操作使得其具有液压消化器的优点，但在液面上具有气体填充区域。将碎屑和蒸煮液的浆料通过倒置的顶部分离器引入蒸煮器容器的顶部。在倒置顶部分离器下面建立一个液位，并且在倒置顶部分离器之下建立一个切片液面（在液面上方或下方）。液面以上的充气区包括压缩气体，并且温度低于160℃（优选小于120℃），压力为50-200（优选80-150）psig。蒸煮器可以在顶部具有第一直径部分（约3-5米），在顶部具有第二直径部分（至少约七米），第一直径部分中的反向分离器，第一直径部分直径部分和第二直径部分中的切屑液面。肩部设置在第一直径部分和第二直径部分之间，并且优选地将拔出筛网安装在第二直径部分的肩部正下方。可以从倒置的顶部分离器中提取多个不同的液流。

8. 发明授权

US5882477A Continuous digester with a low temperature gas-phase 失效
标题翻译：连续蒸煮器具有低温气相
公开(公告)号：US5882477A
公开(公告)日：1999-03-16
申请号：US797327
申请日：1997-02-10
申请人： Richard Laakso , C. Bertil Stromberg
发明人： Richard Laakso , C. Bertil Stromberg
IPC分类号： D21C7/00 , D21C3/22 , D21C3/24 , D21C7/06 , D21C7/10 , D21C7/12 , D21C3/26
CPC分类号： D21C7/06 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/10
摘要： A cellulose pulp continuous digester (e.g. for producing kraft pulp) is operated so that it has the advantages of a hydraulic digester yet has a gas-filled zone over the liquid level. A slurry of chips and cooking liquor is introduced into the top of the digester vessel through an inverted top separator. A liquid level is established below the inverted top separator, and a chips level is established below the inverted top separator (above or below the liquid level). A gas-filled zone above the liquid level includes compressed gas, and is at a temperature of less than 160 (preferably less than 120).degree.C. and at a pressure of between 50-200 (preferably 80-150) psig. The chips are heated by recirculating and heating liquid using a recirculation loop below the chips level, and a countercurrent flow zone is preferably provided.
摘要翻译：操作纤维素纸浆连续蒸煮器（例如，用于生产牛皮纸浆）的操作使得其具有液压消化器的优点，但在液面上具有气体填充区域。将碎屑和蒸煮液的浆料通过倒置的顶部分离器引入蒸煮器容器的顶部。在倒置顶部分离器下面建立一个液位，并且在倒置顶部分离器之下建立一个切片液面（在液面上方或下方）。液面以上的充气区包括压缩气体，并且温度低于160℃（优选小于120℃），压力为50-200（优选80-150）psig。通过使用低于芯片水平面的再循环回路循环和加热液体来加热芯片，并且优选地提供逆流流动区域。

9. 发明授权

US07658818B2 Method for converting a digester for use as a gas phase and hydraulic phase continuous digester 有权
标题翻译：用于转化用作气相和液相连续蒸煮器的蒸煮器的方法
公开(公告)号：US07658818B2
公开(公告)日：2010-02-09
申请号：US11687835
申请日：2007-03-19
申请人： Keith P. Vogel , John F. Bolles , Patrick J. Sullivan , C. Bertil Stromberg
发明人： Keith P. Vogel , John F. Bolles , Patrick J. Sullivan , C. Bertil Stromberg
IPC分类号： D21C1/10
CPC分类号： D21C3/24 , D21C7/06 , D21C7/14
摘要： A method for converting a vapor phase continuous digester to a hydraulic digester including the steps of: operating the vapor phase digester in a vapor phase mode wherein a chip slurry enters the vessel of the digester through a lower chip inlet port, moves up through a top separator, discharges from an upper chip discharge chute of the separator to an upper vapor region of the vessel and falls to a liquor filled region of the vessel; ceasing the flow of the chip slurry to the separator; establishing a chip slurry flow path to an upper portion of top separator, and filling the vessel with liquor and chips such that the chip discharge chute is immersed in liquor.
摘要翻译：一种用于将气相连续蒸煮器转换成液压消化器的方法，包括以下步骤：以气相模式操作气相蒸煮器，其中芯片浆料通过下芯片入口进入蒸煮器的容器，向上移动通过顶部分离器，从分离器的上部切屑排出槽排出到容器的上部蒸气区域，并且下降到容器的液体填充区域; 停止碎屑流向分离器的流动; 建立到顶部分离器上部的芯片浆料流动路径，并用液体和碎屑填充容器，使得排屑槽浸入液体中。

10. 发明申请

US20090038767A1 Method and System for Semi-Chemical Pulping 审中-公开
标题翻译：半化学制浆方法与系统
公开(公告)号：US20090038767A1
公开(公告)日：2009-02-12
申请号：US12173132
申请日：2008-07-15
申请人： C. Bertil Stromberg
发明人： C. Bertil Stromberg
IPC分类号： D21C3/00 , D21C7/00
CPC分类号： D21C3/00 , D21C7/00
摘要： Method and apparatus for minimizing adherence of lignin to an extraction screen in a semi-chemical pulping process. The method and apparatus generally relate to supplying white liquor and NaOH to as to increase the pH of cooking liquor at or near an extraction screen.
摘要翻译：在半化学制浆过程中使木质素粘附到提取筛上的方法和装置。该方法和设备通常涉及向白液和NaOH提供以提高提取筛网处或附近的蒸煮液的pH值。

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