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1. 发明授权

US06475338B1 Method of minimizing transition metal ions during chemical pulping in a digester by adding chelating agent to the digester 失效
标题翻译：在蒸煮器中通过向蒸煮器中加入螯合剂在化学制浆过程中使过渡金属离子最小化的方法
公开(公告)号：US06475338B1
公开(公告)日：2002-11-05
申请号：US08659682
申请日：1996-06-05
申请人： Jian Er Jiang , Kaj O. Henricson
发明人： Jian Er Jiang , Kaj O. Henricson
IPC分类号： D21C102
CPC分类号： D21C3/22
摘要： The production of chemical (e.g., kraft) cellulose pulp much more suited to totally chlorine free or elemental chlorine free bleaching is produced by reducing the bleaching chemical consumability of the produced pulp. The effective alkalinity of the pulp during at least the majority of the cooking stage is maintained at about 15 g/l or above (e.g., about 18-25 g/l), expressed as sodium hydroxide, so as to reduce the charged acid groups (including hexeneuronic acids) by at least 30% (e.g., at least about 50%) compared with pulp cooked at conventional alkalinity. Instead—or in addition to—the cellulosic material which produces the pulp may be heated to a temperature (at least about 100° C., preferably at least about 130° C.) to release significant quantities of the transition metals within it, and preferably while it has this elevated temperature and a dissolved organic solids concentration of about 120 g/l or less, a chelating agent (such as EDTA) is added to combine with a significant quantity of the released transition metals to produce complexes. At least a majority of the complexes are preferably removed (e.g., using an extraction screen in a digester) before the pulp is bleached.
摘要翻译：通过减少所产生的纸浆的漂白化学品消耗能力，生产更适合于完全无氯或无元素无氯漂白的化学（例如牛皮纸）纤维素纸浆。在烹饪阶段的至少大部分期间纸浆的有效碱度保持在约15g / l或更高（例如约18-25g / l），以氢氧化钠表示，以便减少带电的酸基团（包括己烯醛酸）与常规碱度煮熟的纸浆相比至少30％（例如至少约50％）。或者除了生产纸浆的纤维素材料之外，还可以加热到至少约100℃，优选至少约130℃的温度以释放大量的过渡金属，以及优选当其具有这种升高的温度和约120g / l或更低的溶解有机固体浓度时，加入螯合剂（例如EDTA）以与大量释放的过渡金属组合以产生络合物。在纸浆漂白之前，至少大部分复合物优选被除去（例如，在蒸煮器中使用提取筛网）。

2. 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.

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

US4333800A Method for the recovery of easily evaporable components from hot gases 失效
标题翻译：从热气中回收易挥发成分的方法
公开(公告)号：US4333800A
公开(公告)日：1982-06-08
申请号：US2686
申请日：1979-01-11
申请人： Kaj O. Henricson
发明人： Kaj O. Henricson
IPC分类号： B01D1/00 , B01D1/22 , B01D1/26 , D21C11/10 , B01D3/14
CPC分类号： B01D1/26 , B01D1/0094 , B01D1/22 , D21C11/10 , Y02P70/24 , Y02P70/34
摘要： A method for the recovery of heat and easily evaporable components from hot gases in which a liquid flowing downwards along heat exchanger surfaces is simultaneously heated indirectly, the hot gases are fed into the lower section of a gas space, blast gas containing evaporable components is removed at the upper section of the gas space, and a condensate derived from the hot gases is removed at the bottom of the gas space, comprising further bringing the blast gases into one or several indirect heat exchange contacts with the liquid, in successive additional gas spaces, recovering condensate accumulated at the bottoms of these additional spaces, and withdrawing the blast gases from the last additional gas space.
摘要翻译：从热气中回收热量容易蒸发的组分的方法，其中沿着热交换器表面向下流动的液体被间接地加热，热气被送入气体空间的下部，除去含有可蒸发组分的鼓风气体在气体空间的上部，并且在气体空间的底部除去源自热气体的冷凝物，其还包括在连续的另外的气体空间中使鼓风气体进入与液体的一个或多个间接热交换接触回收在这些附加空间的底部积聚的冷凝物，以及从最后一个附加气体空间排出鼓风气体。

5. 发明授权

US6136145A Method for treating pulp in an indirect heat exchanger in connection with bleaching 失效
标题翻译：处理与漂白相关的间接热交换器中的纸浆的方法
公开(公告)号：US6136145A
公开(公告)日：2000-10-24
申请号：US981419
申请日：1997-12-16
申请人： Kaj O. Henricson , Olavi E. Pikka
发明人： Kaj O. Henricson , Olavi E. Pikka
IPC分类号： D21C3/24 , D21C7/08 , D21C9/00 , D21C9/10 , F28D7/00 , F28D7/10 , F28F1/40 , F28F13/06 , D21C11/06
CPC分类号： D21C9/1057 , D21C3/24 , D21C7/08 , D21C9/007 , D21C9/10 , D21C9/1005 , D21C9/1042 , F28D7/0041 , F28D7/106 , F28F1/40 , F28F13/06
摘要： A method of treating pulp and an apparatus for practicing the method are particularly suitable for the bleaching of medium consistency pulp when bleaching stages of varying temperature are used. Chemical pulp is treated in such a way that the pulp is allowed to flow prior to a bleaching reactor, in the reactor itself, and/or after the reactor, at a velocity of less than 5 m/s through an indirect heat exchanger in order to change the pulp temperature more than 5.degree. C., preferably more than 10.degree. C.
摘要翻译： PCT No.PCT / FI96 / 00353 Sec。 371日期：1997年12月16日 102（e）日期1997年12月16日PCT提交1996年6月14日PCT公布。出版物WO97 / 00998 日期1997年1月9日一种处理纸浆的方法和用于实施该方法的装置特别适用于当使用变化温度的漂白阶段时中等稠度纸浆的漂白。以这样的方式处理化学纸浆，使纸浆在漂白反应器之前，反应器本身和/或反应器之后，以小于5m / s的速度通过间接热交换器按顺序流动改变纸浆温度超过5℃，优选超过10℃。

6. 发明授权

US5635026A Cooking cellulose material with high alkali concentrations and/or high pH 失效
标题翻译：烹饪具有高碱浓度和/或高pH值的纤维素材料
公开(公告)号：US5635026A
公开(公告)日：1997-06-03
申请号：US558138
申请日：1995-11-13
申请人： Auvo K. Kettunen , Kaj O. Henricson , Aki H. Vilpponen , Jian E. Jiang , Bruno S. Marcoccia
发明人： Auvo K. Kettunen , Kaj O. Henricson , Aki H. Vilpponen , Jian E. Jiang , Bruno S. Marcoccia
IPC分类号： D21C3/02 , D21C3/26
CPC分类号： D21C3/02 , D21C3/26 , D21C3/266
摘要： Chemical (typically kraft) pulp having enhanced intrinsic fiber strength and bleachability compared to pulp produced using conventional or modified kraft cooking is produced by using high alkali and/or pH cooking. After being impregnated with a first cooking liquor (e.g. white liquor) having low effective alkali, the first liquor is extracted from the pulp, and it is impregnated with a second cooking liquor having an effective alkali concentration of at least 25 g/l and cooked at cooking temperature (e.g. 140.degree.-190.degree. C.) to produce a spent second cooking liquor having a residual effective alkali concentration of at least about 15 g/l, which is then extracted from the pulp. The spent second liquor may be used to preheat incoming white liquor, and then flashed and used as the first liquor. The pH of the first liquor is typically less than about 13.0, and the residual pH of the spent second liquor is about 13.0 or more.
摘要翻译：通过使用高碱和/或pH蒸煮来生产与使用常规或改性硫酸盐蒸煮生产的纸浆相比具有增强的本征纤维强度和可漂白性的化学（通常是牛皮纸）纸浆。在用有效碱性低的第一蒸煮液（例如白液）浸渍之后，将第一液体从纸浆中提取出来，并用第二种有效碱浓度至少为25g / l的蒸煮液浸渍，并煮熟在烹饪温度（例如140°-19℃）下，产生具有至少约15g / l的残留有效碱浓度的废第二蒸煮液，然后从纸浆中提取。用过的第二种酒可以用于预热白液，然后闪蒸并用作第一种液体。第一液体的pH通常小于约13.0，并且废第二液体的残留pH为约13.0或更高。

7. 发明授权

US5139671A Apparatus for treating pulp 失效
标题翻译：纸浆处理设备
公开(公告)号：US5139671A
公开(公告)日：1992-08-18
申请号：US558142
申请日：1990-07-26
申请人： Kaj O. Henricson , Seppo K. Kokkonen , Olavi E. Pikka , Harri T. Qvintus , Erkki A. Ruuskanen , Erkki E. Savolainen
发明人： Kaj O. Henricson , Seppo K. Kokkonen , Olavi E. Pikka , Harri T. Qvintus , Erkki A. Ruuskanen , Erkki E. Savolainen
IPC分类号： D21D1/40
CPC分类号： D21D1/40
摘要： An appratus for treating medium consistency pulp in connection with different treatment apparatuses, such as washers. According to the prior art the treatment of pulp, for example, the washing process, starts at a low consistency, approximately 1-3% so that it is necessary always to dilute pulp before washing, whereby the water consumption of the plant increases and the need of power in, for example, pumping and in the treatment generally increases. The present invention makes it possible to treat medium consistency pulp, because the feeding means is able to spread the pulp as an even layer on the perforated surface of the treating apparatus.
摘要翻译：用于处理与不同处理设备如洗衣机相关的中等稠度纸浆的设备。根据现有技术，纸浆的处理例如洗涤过程以低稠度开始，约为1-3％，因此必须始终在洗涤之前稀释纸浆，从而使植物的水消耗增加，例如，泵送和处理中的电力需求通常会增加。本发明使得可以处理中等稠度纸浆，因为进料装置能够将纸浆作为均匀层铺在处理装置的穿孔表面上。

8. 发明授权

US4975204A Method and apparatus for thickening fiber suspension 失效
公开(公告)号：US4975204A
公开(公告)日：1990-12-04
申请号：US216842
申请日：1988-07-08
申请人： Kaj O. Henricson , Mika P. Makela , Toivo Niskanen , Olavi E. Pikka , Vesa Vikman
发明人： Kaj O. Henricson , Mika P. Makela , Toivo Niskanen , Olavi E. Pikka , Vesa Vikman
IPC分类号： D21C9/18
CPC分类号： D21C9/18
摘要： The present invention relates to a method and apparatus for the continuous discharge of water from suspension, especially from fibrous pulp, whereby pulp is caused to thicken without having the water to be removed through a thick uncontrollably gathered fiber mat.In accordance with the invention the suspension to be thickened is fed into a filtering chamber, the suspension is formed as a layer that is continuously being mixed for equalizing the consistency differences, the liquid is continuously removed from the suspension and the thickness of the fiber mat being formed on the filter surface is controlled by subjecting said mat to shear stresses.The above described method is realized by an apparatus, in which at least one of the co-operating surfaces, the filtering surface (8) and its counter surface (10), is provided with means (12) for non-mechanically limiting the thickness of a fiber mat on the filtering surface, whereby a uncontrolled formation of a fiber mat on the filtering surface (8) is prevented.

9. 发明授权

US4485646A Apparatus for washing fiber stock 失效
标题翻译：洗涤纤维原料的设备
公开(公告)号：US4485646A
公开(公告)日：1984-12-04
申请号：US461176
申请日：1983-01-26
申请人： Kaj O. Henricson
发明人： Kaj O. Henricson
IPC分类号： D06B3/02 , D21C9/02
CPC分类号： D06B3/02
摘要： Apparatus for washing fiber stock, comprising a substantially horizontally disposed rotating screen drum, means for supplying fiber stock to one end of said screen drum for passage along the screen surface through said screen drum, means for removing fiber stock from the other end of said screen drum, and a longitudinally extending liquid supply member fixedly mounted beneath the center axis of the screen drum, immersed in the fiber stock. The apparatus is provided with suction chambers and it acts as a screen with self-suction.
摘要翻译：用于清洗纤维原料的设备，包括基本上水平设置的旋转筛筒，用于将纤维原料供给到所述筛筒的一端以便沿筛网表面通过所述筛筒的装置，用于从所述筛网的另一端除去纤维原料的装置滚筒和固定地安装在筛筒的中心轴线下方的纵向延伸的液体供应部件，浸入纤维原料中。该设备设置有抽吸室，并且其用作具有自吸的筛网。

10. 发明授权

US06306253B2 Acid treatment of pulp at high temperature prior to chlorine dioxide bleaching 失效
标题翻译：在二氧化氯漂白之前在高温下对纸浆进行酸处理
公开(公告)号：US06306253B2
公开(公告)日：2001-10-23
申请号：US09051678
申请日：1998-04-14
申请人： Kaj O. Henricson
发明人： Kaj O. Henricson
IPC分类号： D21C910
CPC分类号： D21C9/1005 , D21C9/1026
摘要： In the treatment of cellulose pulp in connection with bleaching, the pulp is first cooked and, if necessary, oxygen delignified in order to reduce the Kappa number below 24, preferably below 14, and after that the pulp is treated in an acid stage at a pH of 2-5 and at a temperature range of 75-130° C. in order to reduce the Kappa number by 2-9 units. To prevent essential weakening of the strength properties of the pulp in the acid stage treatment tower, the retention time, t min, is 30 to 300 minutes and the treatment temperature, T° C. is Tmin
摘要翻译：在与漂白有关的纤维素纸浆的处理中，首先将纸浆煮熟，并且如果需要，氧脱木质，以将卡伯值降低到24以下，优选低于14℃，然后在酸性阶段处理纸浆 pH为2-5，在75-130℃的温度范围内，以将卡伯值降低2-9个单位。为了防止酸阶段处理塔中纸浆强度特性的弱化，保留时间t min为30〜300分钟，处理温度T℃为Tmin

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