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公开(公告)号：EP0776248B1
公开(公告)日：1999-12-08
申请号：EP95926555.4
申请日：1995-06-26
发明人： VIRVING, Nils
摘要： A pair of co-operating refining elements intended for use in a disc refiner for the disintegration and refining of lignocellulosic material in a refining gap between two opposed refining discs rotating relative to each other. The refining elements are intended to be positioned directly in front of each other on opposed refining discs. Both refining elements are formed with bars and grooves arranged in a number of restricted zones located radially outside each other, where each refining element comprises at least three zones (A, B, C). The bars in opposed inner zones (A) on the refining elements are angled 10-30 DEG in different direction in relation to the radius of the refining elements, so that the bars on opposed refining elements cross each other. The bars in an intermidate zone (B) on both refining elements form an angle smaller than 15 DEG , preferably smaller than 10 DEG , with the radius. The bars in an opposed outer zone (C9) on the refining elements form an angle with the radius in the interval 10-30 DEG in the same direction.
摘要翻译： 一对共同操作的精炼元件，旨在用于盘磨机中，用于在相对旋转的两个相对的精炼盘之间的精炼间隙中分解和精炼木质纤维素材料。 精磨元件旨在直接位于相对的精磨盘上彼此的前方。 两个磨浆元件均形成有条状物和凹槽，所述条状物和凹槽布置在径向位于彼此外侧的多个限制区域中，其中每个磨浆元件包括至少三个区域（A，B，C）。 精炼元件上相对的内区（A）中的棒相对于精炼元件的半径在不同方向上成10-30°角，以使相对的精炼元件上的棒相互交叉。 位于两个磨浆元件上的中间区（B）中的棒与半径形成小于15°，优选小于10°的角度。 精炼元件上相对的外部区域（C9）中的棒材在相同方向上与半径在10-30°之间形成一个角度。
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公开(公告)号：EP0836658A1
公开(公告)日：1998-04-22
申请号：EP96922325.0
申请日：1996-06-24
CPC分类号： D21D5/026
摘要： 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.
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公开(公告)号：EP0776248A1
公开(公告)日：1997-06-04
申请号：EP95926555.0
申请日：1995-06-26
发明人： VIRVING, Nils
摘要： A pair of co-operating refining elements intended for use in a disc refiner for the disintegration and refining of lignocellulosic material in a refining gap between two opposed refining discs rotating relative to each other. The refining elements are intended to be positioned directly in front of each other on opposed refining discs. Both refining elements are formed with bars and grooves arranged in a number of restricted zones located radially outside each other, where each refining element comprises at least three zones (A, B, C). The bars in opposed inner zones (A) on the refining elements are angled 10-30° in different direction in relation to the radius of the refining elements, so that the bars on opposed refining elements cross each other. The bars in an intermidate zone (B) on both refining elements form an angle smaller than 15°, preferably smaller than 10°, with the radius. The bars in an opposed outer zone (C9) on the refining elements form an angle with the radius in the interval 10-30° in the same direction.
摘要翻译： 一对共同操作的精炼元件，旨在用于盘磨机中，用于在相对旋转的两个相对的精炼盘之间的精炼间隙中分解和精炼木质纤维素材料。 精磨元件旨在直接位于相对的精磨盘上彼此的前方。 两个磨浆元件均形成有条状物和凹槽，所述条状物和凹槽布置在径向位于彼此外侧的多个限制区域中，其中每个磨浆元件包括至少三个区域（A，B，C）。 精炼元件上的相对的内部区域（A）中的棒相对于精炼元件的半径在不同的方向上成10-30°角，从而相对的精炼元件上的棒相互交叉。 两个精磨元件中的中间区（B）中的棒与半径形成小于15°的角度，优选小于10°。 精炼元件上相对的外部区域（C9）中的棒材在同一方向上与半径在10-30°范围内形成角度。
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公开(公告)号：EP0683833B1
公开(公告)日：1997-05-28
申请号：EP94907738.2
申请日：1994-01-12
IPC分类号： D21D5/02
CPC分类号： D21D5/026 , B01D29/25 , B01D29/356 , B01D29/58 , B01D29/666 , B01D29/86 , B01D2201/043
摘要： PCT No. PCT/SE94/00013 Sec. 371 Date Aug. 7, 1995 Sec. 102(e) Date Aug. 7, 1995 PCT Filed Jan. 12, 1994 PCT Pub. No. WO94/18387 PCT Pub. Date Aug. 18, 1994A pressurized screen arrangement for screening lignocellulose containing fiber material, comprising a screen housing (10) with a screen cage (11) are arranged in first and, respectively, second attachment members (17, 18) in the screen housing. Both ends of the screen cage (11) are fitted into the attachment members (17,18) with radial clearance, and an axial support (21) is provided at least at one of the attachment members (17,18).
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5.发明公开PRESSURIZED CHLORINE DIOXIDE BLEACHING WITH RECOVERY OF CHLORINE DIOXIDE 失效WITH RECOVERY二氧化氯PRESSURE二氧化氯
公开(公告)号：EP0909354A1
公开(公告)日：1999-04-21
申请号：EP97930929.0
申请日：1997-06-16
发明人： BOMAN, Rolf , BOKSTRÖM, Monica , GERMGARD, Ulf , MELLANDER, Pia , NORDEN, Solveig , SUNDIN, Matts
IPC分类号： D21C9
CPC分类号： D21C9/1026 , D21C9/144
摘要： The present invention relates to a multi-stage paper pulp bleaching process in which at least one of the bleaching stages is carried out in a reactor with chlorine dioxide at a pulp concentration of 8-40 %. The pulp is bleached with chlorine dioxide in a pressurized vessel at an overpressure of 0.1-10 bars and at a temperature of between 90-110 °C and for a reaction time of 1-90 minutes. The pressure of the pulp is lowered in a downstream tower in a manner such as to also lower the temperature of the pulp and enable residues of chlorine dioxide to be extracted in gas phase.
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公开(公告)号：EP0889989A1
公开(公告)日：1999-01-13
申请号：EP97919803.0
申请日：1997-03-07
发明人： FORSLUND, Kjell , KOTKANIEMI, Leo
CPC分类号： B01D19/0078 , D21D5/26 , F04D9/06 , F04F5/54 , F05B2210/132
摘要： A method and a device for degassing a gas-containing fluid medium in connection with the pumping of the medium by a centrifugal pump (6, 21, 29) which is designed for gas separation, where the gas is evacuated by the suction effect from an ejector (9, 23, 30).
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公开(公告)号：EP0907787A1
公开(公告)日：1999-04-14
申请号：EP97924485.0
申请日：1997-05-29
摘要： A device for distribution of pulp at the supply of the pulp to a container (19) for pulp flow. The device comprises an inlet (11, 22) for central connection to one end of the container (10) and a distribution chamber (14, 24) located after the inlet (11, 22), which chamber communicate with the interior of the container (10). The distribution chamber (14, 24) is defined in lateral direction by a cylindric wall (15, 25) and directly opposite the inlet (11, 22) by a surface element (16, 26). An adjustable overall gap is located between the cylindric wall (15, 25) and surface element (16, 26).
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8.发明公开
公开(公告)号：EP0784720A1
公开(公告)日：1997-07-23
申请号：EP95934912.0
申请日：1995-10-05
IPC分类号： D21C9
CPC分类号： D21C9/1042 , D21C9/1005
摘要： A method of chlorine free bleaching of pulp where the metals in the pulp are removed by means of a chelating agent. The pulp is treated with the chelating agent at a pH 2-7 for a period of 5 minutes to 2 hours. The chelating agent is activated by the addition of an oxidizing agent. After the treatment the pulp is washed.
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公开(公告)号：EP1021615A1
公开(公告)日：2000-07-26
申请号：EP98954901.9
申请日：1998-11-09
发明人： TOLVANEN, Mika
IPC分类号： D21D5/16
CPC分类号： D21D5/16
摘要： A screen panel intended to constitute a portion of the jacket surface of a screening cylinder for screening fiber material. The screen panel (1) is formed in one piece of a wear-resistant non-weldable material. It is on one side provided with substantially axial grooves (4), and slit-shaped screening orifices (7) are arranged in the grooves (4). It is further provided with support rings (6), which constitute an integral part of the panel (1) and extend in the circumferential direction on the same side as the grooves (4).
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公开(公告)号：EP0794854B1
公开(公告)日：2000-02-23
申请号：EP95939454.5
申请日：1995-11-24
发明人： GUSTAVSSON, Lennart
IPC分类号： B27N3/18
摘要： A device for levelling a particulate material web (3), such as a wood-fibre mat laid out on a wire (2) and intended for the production of wood-fibre boards, the material web being moved in relation to the device, comprises a rotary shaft (4) and a plurality of elliptic discs (6) mounted thereon. The shaft (4) is adapted to be arranged transversely of the direction of movement of the material web (3) and extends through the centres of the discs (6). The discs (6) are mounted at an axial distance from one another so as to rotate with the shaft (4). About their minor axes, the discs (6) are so inclined in relation to the shaft (4) as to have a circular axial projection.
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