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公开(公告)号：EP3913137A1
公开(公告)日：2021-11-24
申请号：EP20175686.3
申请日：2020-05-20
发明人： POIKOLAINEN, Antti
摘要： The invention relates to a turning system of a fiber web for a forming section of a fiber web production machine, which turning system (40) comprises a turning roll (46), which is a smooth roll and the turning system (40) further comprises an underpressure device (41) providing underpressure at incoming side of the turning roll (46) and closing the incoming side of the turning roll (46).
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公开(公告)号：EP3333315A1
公开(公告)日：2018-06-13
申请号：EP16202857.5
申请日：2016-12-08
IPC分类号： D21F9/00
CPC分类号： D21F9/003
摘要： The invention relates to a forming section comprising a twin-wire forming unit formed between a lower wire (10) and an upper wire (20), in which first water removal means of the twin-wire forming unit is a forming roll (13) with a wrap angle (13V). In the twin-wire forming unit following the forming roll (13) is a sleeve roll (50) and that run between the forming roll (13) and the sleeve roll (50) is free of vacuumed dewatering i.e. between the forming roll (13) and the sleeve roll (50) no vacuumed dewatering is located.
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4.发明公开
公开(公告)号：EP3640399A1
公开(公告)日：2020-04-22
申请号：EP19199235.3
申请日：2019-09-24
摘要： The invention relates to a method for forming a multi-ply fiber web, in which at least part of the forming is done in a twin-wire forming part formed between a wire (10) for the bottom layer of the multi-ply fiber web and a wire (20) for the top layer of the multi-ply fiber web, in which the layers for the multi-ply fiber web are joined and treated layers combined in the twin-wire part. At least part of sizing of the multi-ply fiber web is provided by applying sizing agent in form of foam by a curtain type application device (C10; C20) in between at least two layers of the multi-ply fiber web in forming section of a multi-ply fiber web production line. The invention also relates to a forming section for a multi-ply fiber web comprising at least one twin-wire forming part formed between a wire (10) for the bottom layer of the multi-ply fiber web and a wire (20) for the top layer of the multi-ply fiber web, in which twin-wire part in the layers for the multi-ply fiber web are joined and treated layers combined. The forming section comprises at least a curtain type application device (C10; C20) for applying sizing agent in form of foam by in between at least two layers of the multi-ply fiber web in forming section of a multi-ply fiber web production line.
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公开(公告)号：EP3333314A1
公开(公告)日：2018-06-13
申请号：EP16202856.7
申请日：2016-12-08
IPC分类号： D21F9/00
CPC分类号： D21F9/003
摘要： The invention relates to a forming unit, which is a gap former formed between a lower wire (10) and an upper wire (20), in which first water removal means of the gap former of the forming unit is a forming roll (23) comprising a wrap angle (23V). In the forming unit at a distance (L) of less than 2 meters from the forming roll (23) a sleeve roll (50) is located, which distance (L) is measured between the point, in which lower and upper wires (10, 20) wrap angle (23V) ends on the forming roll (23) and the point, in which contact of the lower and upper wires (10, 20) begins on the sleeve roll (50).
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6.发明公开
公开(公告)号：EP3382094A1
公开(公告)日：2018-10-03
申请号：EP17164069.1
申请日：2017-03-31
发明人： POIKOLAINEN, Antti
摘要： The invention relates to a forming section for a multi-ply fiber web comprising at least one twin-wire forming part formed between a wire (10) for the bottom layer of the multi-ply fiber web and a wire (20) for the top layer of the multi-ply fiber web, in which twin-wire part in the layers for the multi-ply fiber web are joined and treated layers combined. The forming section comprises a sleeve roll (50) for joining layers of the multi-ply fiber web in a sleeve roll nip between the sleeve roll (50) and the wire(10; 20). The invention also relates to a method for forming a multi-ply fiber web, in which at least part of the forming is done in a twin-wire forming part formed between a wire (10) for the bottom layer of the multi-ply fiber web and a wire (20) for the top layer of the multi-ply fiber web, in which the layers for the multi-ply fiber web are joined and treated layers combined in the twin-wire part. In the method the layers of the multi-ply fiber web are joined in a sleeve roll nip between a sleeve roll (50) and the wire (10; 20).
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