公开(公告)号：WO1997049482A1

公开(公告)日：1997-12-31

申请号：PCT/SE1997000918

申请日：1997-05-29

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  FORSLUND, Kjell ,  DANIELSSON, Magnus ,  WIKSTRÖM, Tomas

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: B01F03/04

CPC classification number: D21C9/10 ,  B01F5/0401

Abstract: A device for admixing an agent in the form of gas or liquid to a material flow. The device comprises a chamber (1) with an inlet (3) and an outlet (4) for connection to ingoing and, respectively, outgoing line (7, 8) for throughflow of the agent, and means (12, 19, 20) for the supply of agent to the chamber (1). The chamber (1) is defined by a cylindric jacket (2) where the inlet (3) and, respectively, outlet (4) is provided with flanges (5, 6, 18, 21), and where the inlet flange (5, 18, 21) has a smaller diameter than the ingoing line (7). Means (12, 19, 20) for the supply of agent are located in the jacket (2) of the chamber (1).

Abstract translation: 用于将气体或液体形式的试剂混合到材料流的装置。 该装置包括具有入口（3）和用于连接入口的出口（4）的腔室（1）和分别用于药剂通过的输出管线（7,8）和装置（12,19,20） 用于向腔室（1）供应药剂。 腔室（1）由圆柱形护套（2）限定，其中入口（3）和分别出口（4）设置有凸缘（5,6,18,21），并且其中入口凸缘（5， 18,21）的直径小于入线（7）的直径。 用于供应药剂的装置（12,19,20）位于腔室（1）的护套（2）中。

公开(公告)号：WO1997023291A1

公开(公告)日：1997-07-03

申请号：PCT/SE1996001594

申请日：1996-12-04

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  VIRVING, Nils ,  BERGQUIST, Peter ,  HAWÉN, Anders

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: B02C07/12

CPC classification number: D21D1/306 ,  B02C2/10 ,  B02C7/12 ,  D21D1/22

Abstract: Refining element intended for a refiner with flat or conical opposed refining surfaces, which are rotary relative to each other for working and refining lignocellulosic material during its passage through a refiner gap (15, 35) between the opposed refining surfaces from an inlet portion with smaller diameter to an outlet portion with greater diameter. The refining element (19, 39) is formed with a refining surface with bars (20) and intermediate grooves (21) which extend over the entire refining element. The bars (20) in the inlet portion of the refining element (19) form an angle of 50-85 DEG with the radius or generatrix of the refining surface. The angle decreases along the surface of the refining element (19, 39) so that the bars (20) in the outlet portion form an angle between -25 DEG and +25 DEG with the radius or generatrix. The bars (20) in the inlet portion are located at a greater mutual distance than in the outlet portion.

Abstract translation: 用于具有平坦或圆锥形相对的精炼表面的精炼元件，其相对于彼此旋转，用于在木质纤维素材料通过相对的精炼表面之间的精炼机间隙（15,35）期间从具有较小的入口部分 直径到具有更大直径的出口部分。 精制元件（19,39）形成有具有在整个精炼元件上延伸的杆（20）和中间槽（21）的精磨表面。 精炼元件（19）的入口部分中的杆（20）与精磨表面的半径或母线形成50-85°的角度。 角度沿着精磨元件（19,39）的表面减小，使得出口部分中的杆（20）与半径或母线形成-25度和+25度之间的角度。 入口部分中的杆（20）位于比出口部分更大的相互距离处。

公开(公告)号：WO1997008381A1

公开(公告)日：1997-03-06

申请号：PCT/SE1996000997

申请日：1996-08-09

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  GERMGÅRD, Ulf ,  LINDQUIST, Jonas

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: D21C09/16

CPC classification number: D21C9/1026 ,  D21C9/166

Abstract: A method at the bleaching of pulp, comprising bleaching with peracetic acid where the pH value during the bleaching reaction is held within 5-7. In the final phase of the bleaching with peracetic acid, metals released in the pulp are rebound to the fibers in the pulp by increasing the pH value to at least 9, whereafter the pulp is washed. The pH value is increased preferably 1-10 minutes before the washing. It is thereby possible to close the bleaching process in counterflow without risk of accumulation of the metals in the process.

Abstract translation: 漂白纸浆的方法，包括用过乙酸漂白，其中漂白反应期间的pH值保持在5-7内。 在用过乙酸漂白的最后阶段，通过将pH值增加至至少9，在纸浆中释放的金属被回弹到纸浆中的纤维，此后纸浆被洗涤。 pH值优选在洗涤前1-10分钟增加。 从而可以在逆流中闭合漂白过程，而不会在该过程中金属的积累风险。

公开(公告)号：WO1995012549A1

公开(公告)日：1995-05-11

申请号：PCT/SE1994000990

申请日：1994-10-20

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  SÄFSTRÖM, Christer ,  LUNDGREN, Göran

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: C02F01/10

CPC classification number: D21F1/66 ,  B01D5/0054 ,  C02F1/10

Abstract: A method of purifying and recovering waste water from a fiberboard manufacturing process. The waste water is supplied to an evaporator (11), in which steam from a steam generator (12) is used as heating medium for evaporating the waste water and concentrating impurities. These impurities are thereafter separated mechanically from the evaporator (11). The steam generated in the evaporator (11) is used in a steam converter (14) for restoring the heating medium used in the evaporator (11) from condensate to steam phase. The condensate formed in the steam converter (14) is purified from solved substances in a purifying unit (15). The condensate thus purified is used as feed water in the steam generator (12), from which steam is supplied to the evaporator (11).

Abstract translation: 从纤维板制造工艺中净化和回收废水的方法。 将废水供应到蒸发器（11），其中来自蒸汽发生器（12）的蒸汽用作用于蒸发废水和浓缩杂质的加热介质。 然后这些杂质与蒸发器（11）机械分离。 在蒸发器（11）中产生的蒸汽用于蒸汽转化器（14），用于将蒸发器（11）中使用的加热介质从冷凝水恢复到蒸汽相。 在蒸汽转化器（14）中形成的冷凝物从纯化单元（15）中的溶解物质中纯化。 如此净化的冷凝物被用作蒸汽发生器（12）中的给水，从蒸汽发生器（12）向蒸发器（11）供应蒸汽。

公开(公告)号：WO1994016139A1

公开(公告)日：1994-07-21

申请号：PCT/SE1993001058

申请日：1993-12-08

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  SCA RESEARCH AB ,  HÖGLUND, Hans ,  BÄCK, Roland ,  DANIELSSON, Ove ,  FALK, Bo

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB ,  SCA RESEARCH AB

IPC: D21B01/02

CPC classification number: D21B1/12 ,  D21B1/14

Abstract: A method of producing mechanical and chemi-mechanical pulp with a yield above 85 % from lignocellulose-containing material for the manufacture of paper or board products. The material is subjected to mechanical processing in at least two steps. The material at its feed into the first step has a temperature below the softening temperature of lignin. When the material is fed into at least one subsequent processing step, it shall have a temperature above the softening temperature of lignin.

Abstract translation: 一种从含木素纤维素的材料生产机械和化学机械纸浆的方法，其产率高于85％，用于制造纸张或纸板产品。 材料在至少两个步骤中进行机械加工。 进料到第一步的材料的温度低于木质素的软化温度。 当材料进料到至少一个后续处理步骤时，其温度应高于木质素的软化温度。

公开(公告)号：WO1997015715A1

公开(公告)日：1997-05-01

申请号：PCT/SE1996001154

申请日：1996-09-18

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB ,  BOKSTRÖM, Monica ,  MELLANDER, Pia ,  NORDÉN, Solveig

IPC: D21C09/147

CPC classification number: D21C9/147

Abstract: A method of oxygen delignification of pulp from lignocellulosic material at medium concentration in two steps. An extended delignification is obtained in that the temperature in the first step is held below 90 DEG C, that the difference in temperature between the steps is lower than 20 DEG C. The pressure in the first step is 4-10 bar and in the second step 2-5 bar, and the pressure in the first step is higher than in the second step. The oxygen addition to the first step is high, 25-50 kg/ton pulp, that alkali is added only to the first step for obtaining high alkalinity in the pulp, 25-50 kg alkali per ton pulp. The stay-time in the first step is 10-30 min and in the second step 45-180 min.

Abstract translation: 在两个步骤中，中等浓度的木质纤维素材料的纸浆的氧脱木质素的方法。 获得延长的脱木质素，其中第一步骤中的温度保持在90℃以下，步骤之间的温度差低于20℃。第一步中的压力为4-10巴，第二步中的压力为 步骤2-5巴，第一步骤中的压力高于第二步骤。 第一步中的氧添加量高，为25-50kg /吨纸浆，仅在第一步中添加碱，以获得纸浆中的高碱度，每吨纸浆25-50kg碱。 第一步的停留时间为10-30分钟，第二步为45-180分钟。

公开(公告)号：WO1997002384A1

公开(公告)日：1997-01-23

申请号：PCT/SE1996000821

申请日：1996-06-24

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  FORSLUND, Kjell ,  BERGDAHL, Anders ,  KRISTRÖM, Klas

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: D21D05/02

CPC classification number: D21D5/026

Abstract: A device for sealing a rotary shaft (17), which is supported in bearings (18, 19) in an air-tight casing (20), which extends into a container (10), in which overpressure is maintained. The device comprises a seal holder (22) attached in the casing (20) with a mechanical shaft seal (21). The casing has openings (23) to render possible access to the side of the shaft seal (21) located in the casing (20). A detachable air-tight cover (24) is provided to close said openings (23) at operation.

Abstract translation: 一种用于密封旋转轴（17）的装置，其被支撑在不透气壳体（​​20）中的轴承（18,19）中，所述装置延伸到保持超压的容器（10）中。 该装置包括用机械轴密封件（21）安装在壳体（20）中的密封保持器（22）。 壳体具有开口（23），以使得可以进入位于壳体（20）中的轴封（21）的侧面。 提供可拆卸的气密盖（24）以在操作时关闭所述开口（23）。

公开(公告)号：WO1996006976A1

公开(公告)日：1996-03-07

申请号：PCT/SE1995000920

申请日：1995-08-11

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  DAHL, Mårten

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: D21C09/10

CPC classification number: D21C9/1042 ,  D21C9/144 ,  D21C9/163

Abstract: Bleaching of chemical pulp in several steps comprising final bleaching with chlorine dioxide and, respectively, hydrogenperoxide. The pulp is treated directly in connection to the chlorine dioxide step (3) without intermediate washing with chelating agent (2) for the elimination of metal ions, preferably manganese. The pulp is thereafter washed (4) and bleached with hydrogenperoxide (5).

Abstract translation: 化学纸浆漂白几步，包括用二氧化氯和过氧化氢分别进行最终漂白。 纸浆直接与二氧化氯步骤（3）相连处理，而不用螯合剂（2）进行中间洗涤，以消除金属离子，优选锰。 然后将纸浆洗涤（4）并用过氧化氢漂白（5）。

公开(公告)号：WO1995012710A1

公开(公告)日：1995-05-11

申请号：PCT/SE1994000930

申请日：1994-10-06

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  GERMGÅRD, Ulf

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: D21C09/10

CPC classification number: D21C9/1042 ,  D21C9/1005

Abstract: A method of separating metal ions from pulp of lignocellulose-containing material. A main flow (1) of the pulp is treated with chelating agent (12) and washed (3) prior to the bleaching (5) of the pulp with hydroperoxide or ozone. Process water (4) washed out at the washing (3) and containing metal ions is mixed with pulp, which is not lateron to be bleached with hydroperoxide or ozone at pH above 7, whereby the metal ions substantially are bound to this pulp. Thereafter a liquid phase (9, 17) substantially free of metal ions is washed out of this pulp. Thereafter pH in this pulp is lowered to below 3 whereby the main part of the metal ions is released from the pulp and washed out.

Abstract translation: 从含木素纤维素材料的纸浆中分离金属离子的方法。 纸浆的主流（1）用螯合剂（12）处理，并在用过氧化氢或臭氧漂洗（5）纸浆之前洗涤（3）。 将洗涤剂（3）洗涤并含有金属离子的处理水（4）与pH值高于7的氢过氧化物或臭氧漂白的纸浆混合，由此金属离子基本上与该纸浆结合。 此后，从该纸浆中洗出基本上不含金属离子的液相（9,17）。 此后，该纸浆中的pH降低至3以下，由此金属离子的主要部分从纸浆中释放出来并被洗掉。

公开(公告)号：WO1995010658A1

公开(公告)日：1995-04-20

申请号：PCT/SE1994000877

申请日：1994-09-23

Applicant: SUNDS DEFIBRATOR INDUSTRIES AB ,  HÄGGSTRÖM, Bert ,  SUNDQVIST, Ingemar

Inventor： SUNDS DEFIBRATOR INDUSTRIES AB

IPC: D21C09/18

CPC classification number: D21F1/76 ,  B01D33/073 ,  B01D33/37 ,  B01D33/72 ,  B01D2201/34 ,  B30B9/20 ,  D21C9/18

Abstract: A device for dewatering material suspensions, possibly in connection with liquid treatment. The device comprises two cylindric rotary liquid-permeable press rolls (10), the shell surface of which is covered with wire cloth (11). The press rolls are located in a vat (12) partially enclosing the rolls, which between themselves form a nip (15). Seals (16, 17) are provided in the vat (12), so that an airtight space (13) is formed between the rolls (10) and vat (12). The seals (16) along the shell surfaces of the rolls (10) consist of a flexible steel strip (21) attached on the upper edge of the vat (12) and extending inward to the shell surface of each roll (10). The steel strip (21) is bent in the rotation direction of the roll, so that its leading end abuts the roll.

Abstract translation: 用于脱水材料悬浮液的装置，可能与液体处理有关。 该装置包括两个圆筒状的旋转液体可渗透的压榨辊（10），其外壳表面用丝布（11）覆盖。 压辊位于部分地包围辊的槽（12）中，它们在它们之间形成辊隙（15）。 密封件（16,17）设置在槽（12）中，使得在辊（10）和槽（12）之间形成气密空间（13）。 沿着辊（10）的壳表面的密封件（16）由附接在槽（12）的上边缘上并向内延伸到每个辊（10）的壳表面的柔性钢带（21）组成。 钢带（21）沿着辊的旋转方向弯曲，使得其前端邻接辊。