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    • 82. 发明申请
    • Method and device for handling cellulose pulp
    • 处理纤维素纸浆的方法和装置
    • US20050224198A1
    • 2005-10-13
    • US11099144
    • 2005-04-05
    • Vidar SnekkenesLennart GustavssonJonas SaetherasenGoran Olsson
    • Vidar SnekkenesLennart GustavssonJonas SaetherasenGoran Olsson
    • D21D1/40D21C9/06D21C9/18D21F1/74D21C9/00
    • D21F1/74
    • The invention concerns a method and a device for the dilution of dewatered cellulose pulp that maintains a consistency of 30% or greater. By shredding of the pulp to a finely divided dry granulate, dilution to a homogeneous consistency in the medium consistency range can take place exclusively through hydrodynamic effects from the addition of dilution fluid. The dilution fluid is added to the granulate at a position at which the granulate is in free fall in a stand pipe 22, 40 and above a level LiqLEV of diluted pulp in the stand pipe. A number of nozzles are arranged around the periphery of the stand pipe, directed in towards the centre of the stand pipe, obliquely downwards in the direction of fall of the granulate. It is possible through this simplified procedure to avoid completely the conventional dilution screws, and this reduces the investment costs and is operating costs, while at the same time unnecessary mechanical influence of the pulp fibres can be avoided.
    • 本发明涉及一种用于稀释维持30%或更高的稠度的脱水纤维素纸浆的方法和装置。 通过将纸浆粉碎成细碎的干燥颗粒,在中等浓度范围内稀释至均匀的稠度可以通过加入稀释液体的流体动力学效应进行。 将稀释液加入到颗粒在立管22,40的自由落体位置和立管上的稀释纸浆液面上的位置上。 多个喷嘴围绕立管的周边布置成朝着立管的中心朝向颗粒的坠落方向倾斜向下倾斜。 通过这种简化的程序,可以完全避免常规的稀释螺钉,这样可以降低投资成本并降低运行成本,同时可以避免纸浆纤维的不必要的机械影响。
    • 83. 发明申请
    • Method for the modification of cellulose fibres
    • 纤维素纤维改性方法
    • US20050161177A1
    • 2005-07-28
    • US10508464
    • 2003-03-21
    • Catrin GustavssonVidar SnekkenesKrister Olsson
    • Catrin GustavssonVidar SnekkenesKrister Olsson
    • D21C1/00D21C3/02D21C9/00D21C9/02D21C3/20
    • D21C9/002D21C3/02
    • The invention relates to a method for the modification of cellulose fiber with the object of increasing the strength properties of the pulp. Cellulose derivative, preferably in the form of CMC, is added in association with alkali cooking and/or delignification of cellulose chips in a suspension with treatment fluid, in an amount exceeding 2 kg, preferably at least 5-7 kg, per ton of cellulose fibers. The addition of cellulose derivative to the suspension takes place when the suspension has a concentration of calcium released from the cellulose exceeding 20 mg/l. The conditions required for an efficient deposit of cellulose derivative onto the cellulose fibers can be established in this way, where the natural content of calcium in the wood raw material has been released and contributes to a high ionic strength, while an advantageous high temperature is established. No additional process stages are required and operating costs can be kept low.
    • 本发明涉及一种用于改进纤维素纤维的方法,目的是提高纸浆的强度性能。 纤维素衍生物,优选以CMC的形式,与处理液的悬浮液中的纤维素碎片的碱烹饪和/或脱木质相关联地加入,每吨纤维素的量超过2kg,优选至少5-7kg 纤维。 当悬浮液具有从纤维素释放的钙浓度超过20mg / l时,向悬浮液中加入纤维素衍生物。 纤维素衍生物有效沉积在纤维素纤维上所需的条件可以这样建立,其中木材原料中的钙的天然含量已被释放并有助于高离子强度,同时建立有利的高温 。 不需要额外的工艺阶段,运行成本可以保持较低。
    • 84. 发明申请
    • Pretreatment of chips with white liquor prior to a treatment with black liquor
    • 在用黑液处理前用白液预处理碎片
    • US20050103454A1
    • 2005-05-19
    • US10497346
    • 2002-12-13
    • Mikael LindstromVidar Snekkenes
    • Mikael LindstromVidar Snekkenes
    • D21C1/06D21C3/22D21C3/26D21C1/00
    • D21C3/22D21C1/06
    • The method is for the manufacture of cooked cellulose pulp in which the starting material, preferably chips, undergoes a successive increase in temperature towards cooking temperature. This is done while the chips are first treated in a pre-treatment zone in which the main part, greater than 50%, of fresh white liquor necessary for the cooking stage is added, after which this alkali-rich treatment fluid is withdrawn and replaced to a major extent by black liquor. The alkali-rich treatment fluid that has been withdrawn after the pre-treatment stage is then added to the cooking stage, which is why the addition of fresh white liquor to the cooking stage is reduced to an equivalent amount. Maximal yield-enhancing effect is obtained using poly-sulphide-rich white liquor during the pre-treatment at a temperature in the interval 60±40° C. and retention time in the interval 2-60 minutes, preferably 2-10 minutes.
    • 该方法用于制造煮熟的纤维素纸浆,其中起始材料,优选碎片经历烹饪温度的连续升高。 这是在首先在预处理区域进行处理的,其中加入大于50%的烹饪阶段所需的新鲜白液的主要部分,之后将该富碱处理液抽出并更换 在很大程度上是黑酒。 然后在预处理阶段之后将已经取出的富碱处理液加入烹调阶段,这就是为了将新鲜的白液添加到烹饪阶段的原因降低到等量。 在预处理期间,在60±40℃间隔的温度和2-60分钟,优选2-10分钟的保留时间内,使用富硫化物白液获得最大的产率增强效果。
    • 85. 发明申请
    • Feeding arrangement for feeding of chips to chip bins
    • 用于将芯片送入芯片仓的进料装置
    • US20050061464A1
    • 2005-03-24
    • US10979004
    • 2004-11-01
    • Vidar Snekkenes
    • Vidar Snekkenes
    • D21C1/02D21C3/24D21C7/06D21C3/26D21C7/08D21C7/14
    • D21C7/06D21C1/02D21C3/24
    • The invention relates to a feed arrangement for feeding chips to chip bins (1) in the production of cellulose pulp in continuous digesters (16), in which the chip bin is constituted by a treatment vessel having a top and a bottom, in which the chips are fed into the top (13) of the treatment vessel and fed out via the bottom of the treatment vessel using suitable lock members (10, 11). Distribution devices (4a, 4b) for the addition of steam are disposed in the treatment vessel so as to heat the chips to a level above 80° C., preferably around 100° C., when the chips are fed out via the bottom of the treatment vessel. By virtue of the fact that the chips are fed into the treatment vessel via at least one liquid lock (30) and the treatment vessel is otherwise sealed off, the quantity of driven-off gases from the chip bin is reduced to a minimum, at the same time as an effective utilization of available energy is obtained.
    • 本发明涉及一种用于在连续消化器(16)中生产纤维素纸浆中的芯片仓(1)中供给碎屑的进料装置,其中切屑仓由具有顶部和底部的处理容器构成,其中 碎片进料到处理容器的顶部(13)中,并使用适当的锁定构件(10,11)经由处理容器的底部送出。 用于添加蒸汽的分配装置(4a,4b)设置在处理容器中,以便将芯片加热到高于80℃,优选约100℃的水平,当芯片经由 处理容器。 由于芯片经由至少一个液体锁(30)进料到处理容器中,并且处理容器被另外密封,所以来自切屑仓的排出气体的量减少到最小,在 同时获得有效利用可用能量的同时。
    • 86. 发明申请
    • Method and arrangement for impregnating chips
    • 浸渍芯片的方法和布置
    • US20050061458A1
    • 2005-03-24
    • US10498470
    • 2002-12-16
    • Vidar SnekkenesLennart Gustavsson
    • Vidar SnekkenesLennart Gustavsson
    • D21C7/06D21C1/06D21C3/24D21C1/02D21C3/26D21C7/08D21C7/10D21C7/14
    • D21C1/06D21C3/24
    • The method and an arrangement are for improved impregnation of chips in association with the manufacture of chemical cellulose pulp. Un-steamed chips are fed into an impregnation vessel (30) in which a fluid level (LIQ_LEV) is established under the highest level (CH_LEV) of the chips. An improved impregnation arrangement for the chips is obtained by the addition of impregnation fluids (BL1/BL2/BL3) with increasing temperatures at different heights (P1, P2, P3), and by the establishment of a counter-flow zone (Z1) in the uppermost part of the impregnation vessel. The requirement for steaming may in this way be dramatically reduced while at the same time the amount of expelled waste gases may be minimized. A major part of the volatile compounds present in the wood are bound to the impregnation fluid (REC) that is withdrawn.
    • 该方法和布置用于与化学纤维素纸浆的制造相关联地改善芯片浸渍。 将未蒸熟的切屑进料到浸渍容器(30)中,其中在芯片的最高水平(CH_LEV)下建立液位(LIQ_LEV)。 通过在不同高度(P1,P2,P3)处增加温度加入浸渍流体(BL1 / BL2 / BL3),并通过建立逆流区(Z1),获得改进的芯片浸渍布置 浸渍容器的最上部分。 蒸汽的要求可以大大降低,同时排出的废气的量可以最小化。 存在于木材中的挥发性化合物的主要部分与被抽出的浸渍液(REC)结合。