公开(公告)号：WO2008152189A3

公开(公告)日：2009-03-05

申请号：PCT/FI2008000070

申请日：2008-06-13

Applicant: ANDRITZ OY ,  VEHMAA JANNE ,  PIKKA OLAVI ,  TERVOLA PEKKA

Inventor： VEHMAA JANNE ,  PIKKA OLAVI ,  TERVOLA PEKKA

IPC: D21C11/00

CPC classification number: D21C11/0064 ,  D21C9/02 ,  D21C9/14 ,  D21C11/0021

Abstract: The invention relates to a method of treating liquid flows at a chemical pulp mill comprising at least an alkaline cooking process utilizing cooking liquor for producing pulp, brown stock treatment with essentially closed liquid cycles, a pulp bleaching plant using ECF-bleaching wherein chloride- containing effluents are generated, a chemical recovery plant comprising a causticizing plant and chemical recovery boiler plant, and effluent purification. A characteristic feature of the method is that chloride-containing effluents of the bleaching plant are introduced to the effluent purification where they are treated for decreasing the organic matter content thereof, at least 20 % of the purified effluent is led back to a pulp mill process, purified effluent is used in at least one stage of causticizing as raw water source so that the chloride-containing liquid formed in the process stage is a weak white liquor fraction that is led to the recovery boiler plant as a smelt dissolving liquid component and therefrom further via regeneration of cooking liquor, pulp cooking and pulp washing as a waste liquor component to evaporation, wherefrom the concentrated waste liquor is led for treatment into a recovery boiler process, wherein a separation process for chlorides is arranged in order to control the chloride-level of the liquor cycle.

Abstract translation: 本发明涉及一种在化学纸浆厂处理液体流动的方法，该方法至少包括利用用于生产纸浆的蒸煮液，基本上封闭的液体循环的褐色处理的碱性烹饪方法，使用ECF漂白的纸浆漂白设备，其中含氯化物 产生污水，包括苛化厂和化学回收锅炉厂的化学回收设备，以及污水净化。 该方法的特征在于将漂白设备的含氯化物的废水引入流出物净化处理，以减少其有机物含量，将至少20％的纯化流出物引回到纸浆厂过程 纯化出的流出液用于至少一个苛化阶段的原水源，使得在工艺阶段中形成的含氯化物液体是弱的白液馏分，作为熔融溶解液体成分导入回收锅炉设备 进一步通过烹饪液的再生，纸浆蒸煮和作为废液组分的纸浆清洗进行蒸发，由此将浓缩的废液引入用于处理的回收锅炉方法中，其中布置氯化物的分离过程以控制氯化物 - 白酒循环水平。

公开(公告)号：WO2011095697A1

公开(公告)日：2011-08-11

申请号：PCT/FI2011/050098

申请日：2011-02-04

Applicant: ANDRITZ OY ,  PELTONEN, Kari ,  LAUKKANEN, Arto ,  PERTTULA, Timo ,  VEHMAA, Janne

Inventor： PELTONEN, Kari ,  LAUKKANEN, Arto ,  PERTTULA, Timo ,  VEHMAA, Janne

IPC: B01F5/04 ,  B01F5/06 ,  B01F15/00 ,  B01F15/02 ,  D21B1/34

CPC classification number: D21F1/00 ,  B01F5/0451 ,  B01F5/0463 ,  B01F5/0646 ,  B01F5/0652 ,  B01F5/0682 ,  B01F5/0688 ,  B01F15/0201 ,  B01F15/0261

Abstract: The invention relates to an apparatus for mixing a gaseous or liquid substance into fiber suspension. The apparatus comprises a tubular body (12), which defines a space that forms a flow channel for the suspension, in which body an inlet (14) and an outlet (16) for the suspension are arranged so that the suspension flows through the flow channel mainly in the axial direction. Further the apparatus comprises a feed member (22) that extends into the flow channel transversely against the flow direction of the suspension and has a cylindrical wall (24) provided with openings (26) for leading the substance from the feed member into the flow channel. At least one protrusion (28) is arranged on the inner surface of the tubular body in the region the feed member. A throttling member (32) is arranged in the flow channel downstream of the feed member in the flow direction of the suspension, and a mixing chamber (36) is formed in the flow channel between the feed member and the throttling member.

Abstract translation: 本发明涉及一种用于将气态或液态物质混合成纤维悬浮液的装置。 该装置包括管状主体（12），其限定形成用于悬架的流动通道的空间，其中主体设置有用于悬架的入口（14）和出口（16），使得悬架流过流动 通道主要在轴向。 此外，该装置包括进料构件（22），该进料构件横向于悬架的流动方向延伸到流动通道中，并具有设置有开口（26）的圆柱形壁（24），用于将物质从进料构件引导到流动通道 。 在进给构件的区域中，至少一个突起（28）布置在管状体的内表面上。 节流部件（32）沿着悬架的流动方向布置在进料构件下游的流动通道中，并且在进料构件和节流构件之间的流动通道中形成混合室（36）。

公开(公告)号：WO2011066189A1

公开(公告)日：2011-06-03

申请号：PCT/US2010/057417

申请日：2010-11-19

Applicant: ANDRITZ INC. ,  ENGSTROM, Johan ,  PIIRA, Jussi ,  VEHMAA, Janne ,  TERVOLA, Veli-Pekka ,  LEAVITT, Aaron

Inventor： ENGSTROM, Johan ,  PIIRA, Jussi ,  VEHMAA, Janne ,  TERVOLA, Veli-Pekka ,  LEAVITT, Aaron

IPC: D21C3/02 ,  D21C7/00

CPC classification number: D21C7/00 ,  D21C3/02

Abstract: A method to cook thin chips in a continuous digester vessel including: introducing thin chips having a thickness of no more than 6mm, into a chip bin; adding white (cooking) liquor to the chip bin or to a chip transport passage extending from the chip bin to an upper inlet of the continuous digester vessel; injecting medium pressure steam or another heated fluid to an upper region of the digester vessel to elevate a cooking temperature of the chips in the vessel to at least 130 degrees Celsius; cooking the chips in the vessel as the chips flow downward through the vessel without substantial extraction or introduction of liquor in the cooking section of the vessel; injecting wash liquid to a lower region of the vessel; extracting at least wash liquid through a wash liquid extraction screen in the lower region of the vessel and above the injection of the wash liquid, and discharging the cooked thin chips from the lower region of the vessel.

Abstract translation: 一种在连续蒸煮容器中制造薄片的方法，包括：将厚度不大于6mm的薄片引入碎片仓; 将白色（烹饪）液体加入到切屑仓或从碎屑仓延伸到连续蒸煮器容器的上部入口的碎屑输送通道; 将中压蒸汽或另一加热流体注入到所述蒸煮器容器的上部区域以将所述容器中的所述碎屑的烹饪温度升高至至少130摄氏度; 当芯片向下流过容器时，在容器的烹饪部分中没有大量提取或引入液体的情况下，在容器中烹饪碎屑; 将洗涤液注射到所述容器的下部区域; 至少通过在容器的下部区域中的洗涤液体提取筛和洗涤液的注射之上提取清洗液体，并且从容器的下部区域排出煮熟的薄片。

公开(公告)号：WO2008152187A2

公开(公告)日：2008-12-18

申请号：PCT/FI2008000068

申请日：2008-06-13

Applicant: ANDRITZ OY ,  VEHMAA JANNE ,  PIKKA OLAVI ,  TERVOLA PEKKA

Inventor： VEHMAA JANNE ,  PIKKA OLAVI ,  TERVOLA PEKKA

IPC: D21C9/14

CPC classification number: D21C11/0028 ,  D21C3/02 ,  D21C9/02 ,  D21C9/10 ,  D21C9/12 ,  D21C9/14 ,  D21C11/0021

Abstract: The present invention relates to a method for treating liquid flows at a chemical pulp mill comprising at least an alkaline cooking process for producing pulp, brown stock treatment with essentially closed liquid cycles, a pulp bleaching plant using ECF-bleaching, a chemical recovery plant comprising a chemical recovery boiler, and effluent purification. Chloride-containing bleaching plant effluents are led to the effluent purification, where they are treated in order to decrease the organic matter content thereof. At least 20 % of the purified effluent is returned to a pulp mill process and purified effluent is used in a last washing stage included in brown stock treatment. In the brown stock treatment the liquid flow is passed counter-currently to evaporation, wherefrom it is led for treatment to a recovery boiler process, wherein a separation process for chlorides is arranged for controlling the chloride level of the liquor cycle.

Abstract translation: 本发明涉及一种在化学纸浆厂处理液体流动的方法，该方法至少包括用于生产纸浆的碱性烹饪方法，基本上封闭的液体循环的褐色处理，使用ECF漂白的纸浆漂白设备，包括 化学回收锅炉和污水净化。 将含氯化物漂白设备的废水导入废水净化处理处理，以降低其有机物含量。 将至少20％的纯化流出物返回到纸浆厂工艺，并且纯化的流出物用于棕色原料处理中包括的最后洗涤阶段。 在棕色储备处理中，液体流动相对于蒸发通过，从那里被引导用于处理回收锅炉过程，其中布置氯化物的分离过程以控制液体循环的氯化物水平。

公开(公告)号：WO2009087265A2

公开(公告)日：2009-07-16

申请号：PCT/FI2009/000002

申请日：2009-01-08

Applicant: ANDRITZ OY ,  VEHMAA, Janne

Inventor： VEHMAA, Janne

IPC: D21C9/153

CPC classification number: D21C9/153

Abstract: The present invention relates to a method of and apparatus for decreasing the ozone content of gas in connection with an ozone bleaching process for pulp in a chemical pulp mill plant provided with or connected to an ECF-bleaching plant for pulp and provided with at least production of a mixture of ozone and carrier gas, ozone bleaching equipment, discharge line for mixture of residual ozone and carrier gas from the ozone bleaching equipment and emergency discharge line for ozone-containing gas bypassing the ozone bleaching equipment and after these a connected first gas scrubber for treating the ozone-containing gas. An essential feature of the invention is that the last treatment stage for ozone-containing gas for removing ozone is carried out in the second gas scrubber, wherein both residual gas from ECF bleaching and residual gas of the ozone stage are treated with reductants. Thereby the elimination of residual ozone can be ensured, especially in disturbance situations.

Abstract translation: 本发明涉及一种降低与化学纸浆厂中的纸浆的臭氧漂白方法有关的气体臭氧含量的方法和设备，所述化学纸浆厂设有或连接有ECF漂白设备 用于纸浆并至少提供臭氧和载气的混合物的生产，臭氧漂白设备，用于从臭氧漂白设备混合残余臭氧和载气的排放管线以及用于含臭氧气体的应急排放管线，绕过臭氧漂白设备 并在这些连接的第一气体洗涤器之后用于处理含臭氧的气体。 本发明的基本特征在于用于去除臭氧的含臭氧气体的最后处理阶段在第二气体洗涤器中进行，其中来自ECF漂白的残余气体和臭氧阶段的残留气体均用还原剂处理。 从而可以确保消除残留臭氧，尤其是在干扰情况下。

公开(公告)号：WO2008152189A2

公开(公告)日：2008-12-18

申请号：PCT/FI2008/000070

申请日：2008-06-13

Applicant: ANDRITZ OY ,  VEHMAA, Janne ,  PIKKA, Olavi ,  TERVOLA, Pekka

Inventor： VEHMAA, Janne ,  PIKKA, Olavi ,  TERVOLA, Pekka

IPC: D21C9/14

CPC classification number: D21C11/0064 ,  D21C9/02 ,  D21C9/14 ,  D21C11/0021

Abstract: The invention relates to a method of treating liquid flows at a chemical pulp mill comprising at least an alkaline cooking process utilizing cooking liquor for producing pulp, brown stock treatment with essentially closed liquid cycles, a pulp bleaching plant using ECF-bleaching wherein chloride- containing effluents are generated, a chemical recovery plant comprising a causticizing plant and chemical recovery boiler plant, and effluent purification. A characteristic feature of the method is that chloride-containing effluents of the bleaching plant are introduced to the effluent purification where they are treated for decreasing the organic matter content thereof, at least 20 % of the purified effluent is led back to a pulp mill process, purified effluent is used in at least one stage of causticizing as raw water source so that the chloride-containing liquid formed in the process stage is a weak white liquor fraction that is led to the recovery boiler plant as a smelt dissolving liquid component and therefrom further via regeneration of cooking liquor, pulp cooking and pulp washing as a waste liquor component to evaporation, wherefrom the concentrated waste liquor is led for treatment into a recovery boiler process, wherein a separation process for chlorides is arranged in order to control the chloride-level of the liquor cycle.

Abstract translation: 本发明涉及一种在化学纸浆厂处理液体流动的方法，该方法至少包括利用用于生产纸浆的蒸煮液，基本上封闭的液体循环的褐色处理的碱性烹饪方法，使用ECF漂白的纸浆漂白设备，其中含氯化物 产生污水，包括苛化厂和化学回收锅炉厂的化学回收设备，以及污水净化。 该方法的特征在于将漂白设备的含氯化物的废水引入流出物净化处理，以减少其有机物含量，将至少20％的纯化流出物引回到纸浆厂过程 纯化出的流出液用于至少一个苛化阶段的原水源，使得在工艺阶段中形成的含氯化物液体是弱的白液馏分，作为熔融溶解液体成分导入回收锅炉设备 进一步通过烹饪液的再生，纸浆蒸煮和作为废液组分的纸浆清洗进行蒸发，由此将浓缩的废液引入用于处理的回收锅炉方法中，其中布置氯化物的分离过程以控制氯化物 - 白酒循环水平。

公开(公告)号：WO2008152188A3

公开(公告)日：2008-12-18

申请号：PCT/FI2008/000069

申请日：2008-06-13

Applicant: ANDRITZ OY ,  VEHMAA, Janne ,  PIKKA, Olavi ,  TERVOLA, Pekka

Inventor： VEHMAA, Janne ,  PIKKA, Olavi ,  TERVOLA, Pekka

IPC: D21C9/14 ,  D21C11/00

Abstract: The present invention relates to a method for treating pulp at a chemical pulping plant comprising at least a pulp bleaching plant using elementary chlorine free bleaching and having at least one chlorine dioxide stage, and wherein chloride-containing effluents are formed, a chemical recovery plant comprising a black liquor evaporation plant and a chemical recovery boiler plant, and effluent purification. An object of the present invention is to offer a method for utilizing liquid flows generated at a chemical pulp mill in an advantageous objet and for efficiently circulating them and minimizing the emissions from the mill. A characteristic feature of the method is that chloride-containing bleaching plant effluents are led to effluent purification, where they are treated in order to decrease the organic matter content thereof, that purified effluent is led back to a chemical pulp mill process, so that at least 20 % of the liquid used for brown stock washing is purified effluent and that condensates originating from the evaporation plant are used in the amount of at least 1 m 3 /adt pulp as washing or dilution water of the bleaching for reducing the total amount of effluent, and that a separation process for chlorides is arranged at the chemical recovery boiler plant for decreasing the chloride level of the chemical cycle.

公开(公告)号：WO2008129117A1

公开(公告)日：2008-10-30

申请号：PCT/FI2008/000053

申请日：2008-04-22

Applicant: ANDRITZ OY ,  SAVIHARJU, Kari ,  JAAKKOLA, Heikki ,  VEHMAA, Janne

Inventor： SAVIHARJU, Kari ,  JAAKKOLA, Heikki ,  VEHMAA, Janne

IPC: D21C11/12

CPC classification number: D21C11/12

Abstract: A method for burning chlorine-containing liquors in a chemical recovery boiler at a pulp mill, wherein the recovery boiler includes spent liquor sprayers for feeding spent liquor and a number of combustion air levels including: increasing a combustion temperature in the recovery boiler in a burning zone where a chlorine-containing liquor or a chlorine-containing effluent is burned; while burning the liquor or effluent, volatilizing the chlorine in the liquor or effluent to produce chloride-containing salts in flue gases in the boiler, and removing the chloride-containing salts from the flue gases.

Abstract translation: 一种用于在纸浆厂的化学回收锅炉中燃烧含氯液体的方法，其中回收锅炉包括用于输送废液的废液喷雾器和多种燃烧空气水平，包括：在燃烧中提高回收锅炉中的燃烧温度 含有氯液或含氯污水的区域燃烧; 同时燃烧液体或流出物，挥发液体或流出物中的氯，以在锅炉中的烟道气中产生含氯化物的盐，并从烟道气中除去含氯化物的盐。

公开(公告)号：WO2011095698A1

公开(公告)日：2011-08-11

申请号：PCT/FI2011/050099

申请日：2011-02-04

Applicant: ANDRITZ OY ,  VEHMAA, Janne ,  PELTONEN, Kari ,  LAUKKANEN, Arto ,  PERTTULA, Timo

Inventor： VEHMAA, Janne ,  PELTONEN, Kari ,  LAUKKANEN, Arto ,  PERTTULA, Timo

IPC: B01F5/04 ,  B01F5/06 ,  B01F15/02 ,  D21B1/34

CPC classification number: D21F1/00 ,  B01F5/0451 ,  B01F5/0463 ,  B01F5/0646 ,  B01F5/0652 ,  B01F5/0682 ,  B01F5/0688 ,  B01F15/0201 ,  B01F15/0261

Abstract: The present invention relates to an arrangement and a method for feeding chemical into a fiber suspension in a fiber suspension transfer line. The arrangement comprises in the flow direction of the suspension a pump (102), a closing valve (110), a static mixing apparatus (106) whereto a chemical feed line (104) is connected, and a regulation valve (108). A conduit (120) is connected to the chemical feed line for adding a medium into the chemical flow if needed for maintaining an adequate flow into the mixer (106).

Abstract translation: 本发明涉及一种用于将化学品进料到纤维悬浮液输送管线中的纤维悬浮液中的装置和方法。 该装置包括在悬架的流动方向上的泵（102），一个关闭阀（110），静态混合装置（106）和一个调节阀（108）。 如果需要维持足够的流量进入混合器（106），导管（120）连接到化学品进料管线，用于将介质添加到化学流中。

公开(公告)号：WO2011064447A1

公开(公告)日：2011-06-03

申请号：PCT/FI2010/050943

申请日：2010-11-22

Applicant: ANDRITZ OY ,  VEHMAA, Janne ,  PIKKA, Olavi ,  TERVOLA, Pekka

Inventor： VEHMAA, Janne ,  PIKKA, Olavi ,  TERVOLA, Pekka

IPC: D21C11/00 ,  D21C9/10

CPC classification number: D21C11/00 ,  D21C3/02 ,  D21C9/02 ,  D21C9/083 ,  D21C9/1057 ,  D21C9/144

Abstract: The present invention relates to a method of treating and utilizing liquid flows at a chemical pulp mill. The method comprises at least the following stages: a) chemical pulp is produced in an alkaline cooking process, b) the brown stock generated in the cooking is treated, said treatment comprising washing of the stock and preferably oxygen delignification and subsequent washing of the stock, c) a bleaching process for the brown stock, the bleaching sequence comprising at least one stage using chlorine dioxide and additionally at least one oxidizing bleaching stage and having at least two washing stages for treating the stock with liquids and for producing filtrates, and d) filtrates from stage c) are purified at an effluent treatment plant of the chemical pulp mill, which comprises at least biological treatment, for obtaining purified effluent. The method further comprises a stage e), where the purified effluent with a color of 200 mg/l (R color) or more and a COD value of over 150 mg/l is used as pulp treatment liquid in stage c).

Abstract translation: 本发明涉及在化学纸浆厂处理和利用液体流动的方法。 该方法至少包括以下阶段：a）在碱性烹饪过程中产生化学纸浆，b）处理在烹饪中产生的棕色原料，所述处理包括洗涤原料，优选氧脱木素，随后洗涤原料 ，c）棕色原料的漂白方法，所述漂白顺序包括使用二氧化氯的至少一个阶段和另外至少一个氧化漂白阶段，并且具有至少两个洗涤阶段用于处理液体和生产滤液，以及d ）来自阶段c）的滤液在化学纸浆厂的流出物处理厂纯化，其至少包括生物处理，用于获得纯化的流出物。 该方法还包括阶段e），其中在阶段c）中使用颜色为200mg / l（R颜色）或更高，COD值超过150mg / l的净化流出物作为纸浆处理液。