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公开(公告)号:EP1165882B1
公开(公告)日:2004-07-14
申请号:EP00921197.0
申请日:2000-03-03
申请人: Valmet Fibertech AB
发明人: FORSLUND, Kjell , WIKSTRÖM, Björn
摘要: Screening apparatus for separating fiber suspensions, preferably pulp suspensions, comprising at least two co-axially arranged screen means. A first tubular screen means (6) has outside itself a first screen chamber (7) with an outer defining surface (8). A second tubular screen means (10) has inside itself a second screen chamber (11) with an inner defining surface (23). Such a screening apparatus tends to become relatively high and not to yield good screening results. According to the invention, the first screen means (6) is rotary and located on the rotor means (4). Inside the rotary screen means (6) a stator (17) with at least one pulse means (18) is provided. The smallest diameter of the outer defining surface (8) of the first screen chamber (7) is smaller than the greatest diameter of the inner defining surface (23) of the second screen chamber (11). The first screen chamber (7) is separated from the second screen chamber (11) and at least partially located inside the second screen chamber (11).
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公开(公告)号:EP0889989B1
公开(公告)日:2002-10-02
申请号:EP97919803.3
申请日:1997-03-07
申请人: Valmet Fibertech AB
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:EP0907787B1
公开(公告)日:2003-09-17
申请号:EP97924485.2
申请日:1997-05-29
申请人: Valmet Fibertech AB
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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公开(公告)号:EP0912234B1
公开(公告)日:2003-09-03
申请号:EP97924484.5
申请日:1997-05-29
申请人: Valmet Fibertech AB
CPC分类号: D21C9/10 , B01F5/0401
摘要: 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).
摘要翻译: 用于将气体或液体形式的试剂混合到物料流中的装置。 该装置包括一个腔室(1),该腔室(1)具有用于连接入口的入口(3)和出口(4)以及用于药剂通流的出口管线(7,8),和装置(12,19,20) 用于向腔室(1)供应制剂。 腔室(1)由圆柱形护套(2)限定,入口(3)和出口(4)分别设有凸缘(5,6,18,21),入口凸缘(5, 18,21)的直径小于输入线(7)的直径。 用于供应试剂的装置(12,19,20)位于室(1)的外壳(2)中。
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公开(公告)号:EP1165882A1
公开(公告)日:2002-01-02
申请号:EP00921197.0
申请日:2000-03-03
申请人: Valmet Fibertech AB
发明人: FORSLUND, Kjell , WIKSTRÖM, Björn
摘要: Screening apparatus for separating fiber suspensions, preferably pulp suspensions, comprising at least two co-axially arranged screen means. A first tubular screen means (6) has outside itself a first screen chamber (7) with an outer defining surface (8). A second tubular screen means (10) has inside itself a second screen chamber (11) with an inner defining surface (23). Such a screening apparatus tends to become relatively high and not to yield good screening results. According to the invention, the first screen means (6) is rotary and located on the rotor means (4). Inside the rotary screen means (6) a stator (17) with at least one pulse means (18) is provided. The smallest diameter of the outer defining surface (8) of the first screen chamber (7) is smaller than the greatest diameter of the inner defining surface (23) of the second screen chamber (11). The first screen chamber (7) is separated from the second screen chamber (11) and at least partially located inside the second screen chamber (11).
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公开(公告)号:EP0836658B1
公开(公告)日:2001-03-28
申请号:EP96922325.4
申请日:1996-06-24
申请人: Valmet Fibertech AB
IPC分类号: D21D5/02
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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