公开(公告)号：US5518583A

公开(公告)日：1996-05-21

申请号：US138968

申请日：1993-10-21

申请人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan T. Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

发明人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan T. Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

IPC分类号： C01B7/01 ,  C01D1/04 ,  C01D3/04 ,  C01D5/00 ,  C01D7/00 ,  D21C11/00 ,  D21C11/06 ,  D21C11/10 ,  D21C11/12

CPC分类号： D21C11/0021 ,  C01B7/01 ,  C01D1/04 ,  C01D3/04 ,  C01D5/00 ,  C01D7/00 ,  D21C11/00 ,  D21C11/0007 ,  D21C11/0028 ,  D21C11/066 ,  D21C11/10 ,  D21C11/12 ,  Y10S162/08

摘要： In minimizing effluents from a cellulose pulp mill, liquid effluents from a bleach plant are concentrated, and then incinerated to produce a residue including sodium, sulfate, and sodium chloride. This residue is distilled with sulfuric acid to produce gaseous hydrogen chloride and remaining residue, the HCl being used in chloride dioxide production for the bleach plant, while the remaining residue is passed to the recovery loop (e.g. recovery boiler). Sulfur containing gases from the non-condensible gas system may be combusted to produce gaseous sulfur dioxide, which is then converted to sulfuric acid, to distill the residue. Where a non-chlorine bleach plant is provided, the liquid effluents may be concentrated in evaporators and then passed directly to the recovery boiler. The liquid streams in the mill are managed by a cascade principle to reserve the cleanest water for only those processes where it is needed while minimizing its use where it is not necessary.

摘要翻译： 在使来自纤维素纸浆厂的流出物最小化的同时，将来自漂白设备的液体流出物浓缩，然后焚化以产生包括钠，硫酸盐和氯化钠的残余物。 该残余物用硫酸蒸馏以产生气态氯化氢和剩余残余物，HCl用于漂白设备的二氧化氯生产中，而剩余的残余物通过回收回路（例如回收锅炉）。 来自不可冷凝气体系统的含硫气体可以燃烧以产生气态二氧化硫，然后将其转化为硫酸以蒸馏残余物。 当提供非氯漂白设备时，液体流出物可以浓缩在蒸发器中，然后直接通入回收锅炉。 磨机中的液体流是通过级联原理进行管理的，以便在需要的地方只为那些需要处理的过程保留最干净的水，同时尽可能减少不必要的使用。

公开(公告)号：US5549788A

公开(公告)日：1996-08-27

申请号：US113642

申请日：1993-08-31

申请人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan T. Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

发明人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan T. Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

IPC分类号： C01B7/01 ,  C01D1/04 ,  C01D3/04 ,  C01D5/00 ,  C01D7/00 ,  D21C11/00 ,  D21C11/06 ,  D21C11/10 ,  D21C11/12

CPC分类号： C01B7/01 ,  C01D1/04 ,  C01D3/04 ,  C01D5/00 ,  C01D7/00 ,  D21C11/0007 ,  D21C11/0021 ,  D21C11/0028 ,  D21C11/066 ,  D21C11/10 ,  D21C11/12 ,  Y10S162/08

摘要： Effluents are minimized from a cellulose pulp mill having a recovery boiler by concentrating liquid effluents from the bleach plant and/or liquid spills from process streams, incinerating the concentrated effluents in the recovery boiler, removing particles present in the flue gases from the recovery boiler to produce an ash including salts containing potassium and chloride, and sulfur compounds, and removing the potassium and chloride from the ash while returning the sulfur containing compounds to the recovery loop, so as to balance the sulfur, chloride and potassium levels in the mill. The sulfur is typically returned directly to a stream of black liquor just before entry into the recovery boiler. Green liquor is produced from the melt, which preferably is treated to remove metals from it prior to caustization (e.g. by sedimentation and/or filtration), and prior to green liquor crystallization to produce sodium hydroxide.

摘要翻译： 通过从漂白设备中浓缩液体流出物和/或来自工艺物流的液体溢出，焚化回收锅炉中的浓缩废水，将来自回收锅炉的烟道气中存在的颗粒除去，从具有回收锅炉的纤维素纸浆厂中将废水最小化 产生包含含有氯化钾和氯化物的盐的灰分和硫化合物，并将灰分中的钾和氯从灰分中除去，同时将含硫化合物返回到回收回路中，以平衡磨机中的硫，氯和钾的含量。 在进入回收锅炉之前，硫通常直接返回到黑液流中。 从熔体中生产绿液，其优选在去除（例如通过沉淀和/或过滤）之前以及在绿液结晶以产生氢氧化钠之前经处理以从其中除去金属。

公开(公告)号：US5374333A

公开(公告)日：1994-12-20

申请号：US922334

申请日：1992-07-30

申请人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

发明人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

IPC分类号： D21C9/10 ,  D21C11/00 ,  D21C11/12

CPC分类号： D21C11/0021 ,  Y10S162/08

摘要： Apparatus for a pulp and paper mill, and methods of acting on liquid effluents produced in the mill, which minimizes the discharge of polluting gaseous and liquid effluents to the environment. Liquid effluents from the bleach plant are concentrated (e.g. evaporated), incinerated (e.g. gasified), leached, crystallized (e.g. freeze crystallized) then washed, and then fed to the plant chemical recovery loop. White liquor produced from the recovery boiler melt is fully oxidized and used in place of caustic in the bleach plant. Essentially all sulfuric acid, sulfur dioxide, caustic, and chlorine dioxide necessary for the pulp mill is produced from mill liquid effluents and gas waste streams, on site at the pulp mill. Typical bleaching sequences that can be used are DE.sub.op D.sub.n D, or AZE.sub.o PZP.

摘要翻译： 用于纸浆和造纸厂的设备，以及作用于在磨机中产生的液体流出物上的方法，其最大限度地减少污染的气态和液体流出物排放到环境中。 来自漂白设备的液体流出物被浓缩（例如蒸发），焚化（例如气化），沥滤，结晶（例如冷冻结晶），然后洗涤，然后进料至植物化学回收循环。 从回收锅炉熔体产生的白液被完全氧化并用于漂白设备中的苛性碱。 纸浆厂所必需的硫酸，二氧化硫，苛性碱和二氧化氯基本上都是从磨浆液流出物和废气流中产生的。 可以使用的典型漂白序列是DEopDnD或AZEoPZP。

公开(公告)号：US5380402A

公开(公告)日：1995-01-10

申请号：US959905

申请日：1992-10-13

申请人： Rolf Ryham ,  Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Jarmo Soderman ,  Karl G. Wiklund

发明人： Rolf Ryham ,  Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Jarmo Soderman ,  Karl G. Wiklund

IPC分类号： D21C9/10 ,  D21C11/00 ,  D21C11/12

CPC分类号： D21C11/0021 ,  Y10S159/08 ,  Y10S162/08

摘要： A pulp mill has zero or minimum liquid discharges. The large amounts of liquid that must be processed to achieve this result are handled utilizing a multiple effect evaporator provided with heat from a steam exhaust of a condensing type steam turbine. Super heated steam from the recovery and bark boilers is fed to the turbine to generate electricity for the production of bleaching chemical and other uses in the mill. Three or four steam exhausts having different composite temperature and pressure values are taken from the turbine and used where most suitable in the pulp mill. For evaporation of bleach plant effluent the steam taken from the turbine preferably has a pressure of about 1-3 psia and a temperature of about 120.degree.-140 .degree. F, and has no significant adverse affect on power generation.

摘要翻译： 纸浆厂具有零或最小液体排放。 为了实现该结果而必须处理的大量液体利用从冷凝式蒸汽轮机的蒸汽排气口提供热量的多效蒸发器来处理。 来自回收和树皮锅炉的超级加热蒸汽被供给到涡轮机以产生用于在磨机中生产漂白化学品和其它用途的电力。 从涡轮机取出具有不同复合温度和压力值的三个或四个蒸汽排气口，并在纸浆厂最适合的地方使用。 为了蒸发漂白设备的流出物，从涡轮机获取的蒸汽优选具有约1-3psia的压力和约120-140°F的温度，并且对发电没有显着的不利影响。

公开(公告)号：US5547543A

公开(公告)日：1996-08-20

申请号：US274091

申请日：1994-07-12

申请人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl Wiklund

发明人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl Wiklund

IPC分类号： D21C9/10 ,  D21C11/00 ,  D21C11/12

CPC分类号： D21C11/0021 ,  Y10S162/08

摘要： Apparatus for a pulp and paper mill, and methods of acting on liquid effluents produced in the mill, which minimizes the discharge of polluting gaseous and liquid effluents to the environment. Liquid effluents from the bleach plant are concentrated (e.g. evaporated), incinerated (e.g. gasified), leached, crystallized (e.g. freeze crystallized) then washed, and then fed to the plant chemical recovery loop. White liquor produced from the recovery boiler melt is fully oxidized and used in place of caustic in the bleach plant. Essentially all sulfuric acid, sulfur dioxide, caustic, and chlorine dioxide necessary for the pulp mill is produced from mill liquid effluents and gas waste streams, on site at the pulp mill. Typical bleaching sequences that can be used are DE.sub.op D.sub.n D, or AZE.sub.o PZP.

摘要翻译： 用于纸浆和造纸厂的设备，以及作用于在磨机中产生的液体流出物上的方法，其最大限度地减少污染的气态和液体流出物排放到环境中。 来自漂白设备的液体流出物被浓缩（例如蒸发），焚化（例如气化），沥滤，结晶（例如冷冻结晶），然后洗涤，然后进料至植物化学回收循环。 从回收锅炉熔体产生的白液被完全氧化并用于漂白设备中的苛性碱。 纸浆厂所必需的硫酸，二氧化硫，苛性碱和二氧化氯基本上都是从磨浆液流出物和废气流中产生的。 可以使用的典型漂白序列是DEopDnD或AZEo PZP。

公开(公告)号：US4812207A

公开(公告)日：1989-03-14

申请号：US122598

申请日：1987-11-18

申请人： Johan Gullichsen ,  Pertti Hynninen

发明人： Johan Gullichsen ,  Pertti Hynninen

IPC分类号： D21C11/00 ,  C02F1/52 ,  C02F9/00 ,  C02F1/58

CPC分类号： C02F1/52 ,  C02F2103/28 ,  Y10S210/928

摘要： A method of removing lignin from bleach plant effluents by using cellulose fibres. The method comprises an acidous phase during which sludge containing cellulose fibres is added to the acidous effluent, and an alkaline phase during which alkaline waste water is added to the effluent-sludge solution. A portion of the produced fraction containing fibres is recirculated to the acidous phase for reuse of the fibres.

摘要翻译： 通过使用纤维素纤维从漂白植物废水中除去木质素的方法。 该方法包括酸性相，其中将含有纤维素纤维的污泥加入到酸性流出物中，在碱性阶段向其中加入碱性废水。 产生的含有纤维的部分的一部分再循环到酸性相中以再利用纤维。

公开(公告)号：US4042452A

公开(公告)日：1977-08-16

申请号：US608034

申请日：1975-08-27

申请人： Bengt Arhippainen ,  Johan Gullichsen

发明人： Bengt Arhippainen ,  Johan Gullichsen

IPC分类号： D21C9/02

CPC分类号： D21C9/02

摘要： A process for washing a cellulose pulp from alkali digestion, wherein the pulp is fed into a multistage washing system comprising several countercurrently coupled washers, acid is added to a washing solution, the acidified fiber suspension is fed further to the following stage wherein the acidified solution is replaced in the fiber suspension by washing water, and the filtrate obtained from this stage is used after acidification at least partially as a washing solution at the previous stage. The acid is added at a stage when the concentration of the dissolved organic substances is at a value that detrimental precipitation of the organic substances is prevented.

摘要翻译： 一种从碱消化中洗涤纤维素纸浆的方法，其中将纸浆送入包含多个逆流耦合垫圈的多级洗涤系统中，将酸加入到洗涤溶液中，将酸化的纤维悬浮液进一步加入到下一阶段，其中酸化溶液 通过洗涤水在纤维悬浮液中替代，并且从该阶段获得的滤液至少部分地作为前一阶段的洗涤溶液在酸化之后使用。 当溶解的有机物质的浓度处于防止有机物质的有害沉淀的值时，加入酸。

公开(公告)号：US06436232B1

公开(公告)日：2002-08-20

申请号：US08804181

申请日：1997-02-20

申请人： Petri Silenius ,  Markku Leskelä ,  Johan Gullichsen ,  Esa Halinen

发明人： Petri Silenius ,  Markku Leskelä ,  Johan Gullichsen ,  Esa Halinen

IPC分类号： D21H1770

CPC分类号： D21C9/004 ,  D21H17/28 ,  D21H17/65 ,  D21H17/67 ,  D21H17/675 ,  D21H17/70 ,  D21H23/14

摘要： The invention relates to a procedure for adding a filler into a pulp based on cellulose fibers, in which the pulp is fluidized and the filler is added into it. Preferably the pulp is stirred in the fluidized state while the filler is being added. The pulp is preferably at a medium consistency when the filler is being added. Preferably the filler added into the pulp is calcium hydroxide and the calcium carbonate is precipitated with carbon dioxide.

摘要翻译： 本发明涉及一种将填料添加到基于纤维素纤维的纸浆中的方法，其中纸浆被流化并将填料加入其中。 优选地，当加入填料时，浆液在流化状态下搅拌。 当加入填料时，纸浆优选为中等稠度。 优选地，添加到纸浆中的填料是氢氧化钙，碳酸钙用二氧化碳沉淀。

公开(公告)号：US4776758A

公开(公告)日：1988-10-11

申请号：US070220

申请日：1987-07-06

申请人： Johan Gullichsen

发明人： Johan Gullichsen

IPC分类号： B01D19/00 ,  D21D5/26 ,  F04C23/00 ,  F04D7/04 ,  F04D9/00 ,  F04D9/04 ,  F01D25/32

CPC分类号： B01D19/0052 ,  D21D5/26 ,  F04C23/005 ,  F04D7/04 ,  F04D9/003 ,  F04D9/041

摘要： A pump for medium consistency suspensions (e.g. 6-15%), such as paper pulp, simultaneously pumps and degasses the suspension. A common shaft mounts a fluidizing impeller and a vacuum pump impeller and a common wall with gas exhaust passageways is disposed between the fluidizing pump housing and vacuum pump housing. Gas separated from the suspension flows through the gas passageways in the common wall, through the vacuum pump, past the vacuum impeller, and is expelled out the opposite side of the vacuum pump from the gas inlet passageways. A pressure responsive valve provides make-up air to the vacuum pump if the vacuum pulled is too strong, to prevent suspension from being pulled through the vacuum pump. A liquid inlet supplies liquid in the vacuum pump to define a liquid ring, the inner periphery of the ring defined by the expelled gas outlet.

公开(公告)号：US4754935A

公开(公告)日：1988-07-05

申请号：US37005

申请日：1987-04-10

申请人： Johan Gullichsen

发明人： Johan Gullichsen

IPC分类号： D21B1/14 ,  D21D1/22 ,  B02C19/12

CPC分类号： D21D1/22

摘要： A refiner has a frusto-conically shaped grinding zone located between an outer housing and an inner frusto-conical rotor. The rotor has suitable openings for removing steam from the grinding zone inwardly into an interior chamber within the rotor. Multiple separation stages are provided in the rotor and between it and the housing, respectively, whereby separation of the steam and any following fibrous material particles is effected. By removing the steam from the grinding zone, increased retention time of the fibrous material in the grinding zone and increased production is effected.

摘要翻译： 精磨机具有位于外壳体和内截头圆锥形转子之间的截头圆锥形磨削区域。 转子具有合适的开口，用于将研磨区的蒸汽向内移入转子内的内部室。 分别在转子及其与壳体之间设置多个分离台，从而实现蒸汽和任何后续的纤维材料颗粒的分离。 通过从研​​磨区除去蒸汽，可以提高纤维材料在研磨区中的保留时间，并增加生产。