公开(公告)号：US11414816B2

公开(公告)日：2022-08-16

申请号：US16971766

申请日：2019-02-19

申请人： ANDRITZ AG

发明人： Andreas Anzel ,  Robert Meitner ,  Paul Richards ,  Wolfgang Plienegger

IPC分类号： D21F3/02 ,  D21F3/04 ,  D21F7/12 ,  D21F11/14 ,  D21H27/00 ,  F26B13/24

摘要： A method for treating a pulp web in a paper or tissue machine with an extended-nip press unit. This extended-nip press unit includes a shoe press roll with a revolving press belt and a backing roll, where the pulp web is dewatered in the extended press nip between the backing roll and the press belt and where the pulp web is carried on the revolving press belt of the press roll after the extended press nip to a transfer fabric that receives the pulp web. The transfer fabric is guided over a stationary transfer device in the transfer area. A corresponding device for treating the pulp web.

公开(公告)号：US09856603B2

公开(公告)日：2018-01-02

申请号：US15283636

申请日：2016-10-03

申请人： Andritz AG

发明人： Andreas Anzel ,  Klaus Gissing ,  Thomas Scherb ,  Wilhelm Mausser

IPC分类号： D21F5/18 ,  D21F1/76

CPC分类号： D21F1/76 ,  D21F5/18 ,  D21F11/006 ,  D21F11/145

摘要： A method for producing a fibrous pulp web, in which a fibrous pulp suspension is dewatered in a Twin Wire Former to form a fibrous pulp web which is dried with a TAD dryer. A pre-dewatering device with a hood and suction roll is provided after the Twin Wire Former and before the TAD dryer. The fibrous pulp web is guided through the pre-dewatering device between exactly two machine cloths. The machine cloth between suction roll and the web is a porous felt, and the machine cloth between web and hood is a structured wire. A volume flux of hot drying fluid greater than 100 m3/(m2·min), preferably greater than 250 m3/(m2·min,) is drawn through the fibrous pulp web into the suction roll.

公开(公告)号：US20170096775A1

公开(公告)日：2017-04-06

申请号：US15283636

申请日：2016-10-03

申请人： Andritz AG

发明人： Andreas Anzel ,  Klaus Gissing ,  Thomas Scherb ,  Wilhelm Mausser

IPC分类号： D21F1/76 ,  D21F5/18

CPC分类号： D21F1/76 ,  D21F5/18 ,  D21F11/006 ,  D21F11/145

摘要： A method for producing a fibrous pulp web, in which a fibrous pulp suspension is dewatered in a Twin Wire Former to form a fibrous pulp web which is dried with a TAD dryer. A pre-dewatering device with a hood and suction roll is provided after the Twin Wire Former and before the TAD dryer. The fibrous pulp web is guided through the pre-dewatering device between exactly two machine cloths. The machine cloth between suction roll and the web is a porous felt, and the machine cloth between web and hood is a structured wire. A volume flux of hot drying fluid greater than 100 m3/(m2min), preferably greater than 250 m3/(m2min,) is drawn through the fibrous pulp web into the suction roll.

公开(公告)号：US20210087746A1

公开(公告)日：2021-03-25

申请号：US16971766

申请日：2019-02-19

申请人： ANDRITZ AG

发明人： Andreas Anzel ,  Robert Meitner ,  Paul Richards ,  Wolfgang Plienegger

IPC分类号： D21F3/02 ,  D21F3/04 ,  D21F7/12 ,  D21F11/14 ,  D21H27/00 ,  F26B13/24

摘要： A method for treating a pulp web in a paper or tissue machine with an extended-nip press unit. This extended-nip press unit includes a shoe press roll with a revolving press belt and a backing roll, where the pulp web is dewatered in the extended press nip between the backing roll and the press belt and where the pulp web is carried on the revolving press belt of the press roll after the extended press nip to a transfer fabric that receives the pulp web. The transfer fabric is guided over a stationary transfer device in the transfer area. A corresponding device for treating the pulp web.

公开(公告)号：US10808360B2

公开(公告)日：2020-10-20

申请号：US15764593

申请日：2016-09-15

申请人： Andritz AG

发明人： Andreas Anzel ,  Klaus Gissing ,  Thomas Scherb

IPC分类号： D21F11/14 ,  D21F1/02 ,  D21F1/76 ,  D21F1/78 ,  D21F7/08 ,  D21F9/00 ,  D21H27/00

摘要： A method for producing a fibrous material web, particularly for producing a tissue or hygienic paper web, in which a fibrous suspension is dewatered in a crescent former to obtain a fibrous material web, and dried on a Yankee. After the crescent former, the fibrous material web is guided along with the forming screen and felt over a suction roller downstream of the forming roller. A device for carrying out the method for producing a fibrous material web.

公开(公告)号：US20190360155A1

公开(公告)日：2019-11-28

申请号：US15764593

申请日：2016-09-15

申请人： Andritz AG

发明人： Andreas Anzel ,  Klaus Gissing ,  Thomas Scherb

IPC分类号： D21F11/14 ,  D21F1/02 ,  D21F1/76 ,  D21F1/78 ,  D21F9/00 ,  D21F7/08 ,  D21H27/00

摘要： A method for producing a fibrous material web, particularly for producing a tissue or hygienic paper web, in which a fibrous suspension is dewatered in a crescent former to obtain a fibrous material web, and dried on a Yankee. After the crescent former, the fibrous material web is guided along with the forming screen and felt over a suction roller downstream of the forming roller. A device for carrying out the method for producing a fibrous material web.