Invention Grant
- Patent Title: Paper or board machine employing a single-wire draw dryer section
- Patent Title (中): 纸或纸板机采用单线牵引干燥部分
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Application No.: US13021429Application Date: 2011-02-04
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Publication No.: US08444824B2Publication Date: 2013-05-21
- Inventor: Kari Juppi , Antti Komulainen
- Applicant: Kari Juppi , Antti Komulainen
- Applicant Address: FI Helsinki
- Assignee: Metso Paper, Inc.
- Current Assignee: Metso Paper, Inc.
- Current Assignee Address: FI Helsinki
- Agency: Stiennon & Stiennon
- Priority: FI20065061 20060130
- Main IPC: D21F9/00
- IPC: D21F9/00

Abstract:
A paper or board machine having a machine dryer section with a drying group with single-wire draw. A drying wire (F) presses the web (W) on a drying cylinder (10) against heated cylinder surfaces, and the web (W) remains at the side of the outside curve of reversing cylinders (11) situated between drying cylinders (10). For enhancing runnability of the web (W), a runnability component (20) is in a pocket space (T) confined by two adjacent drying cylinders (10) and a reversing cylinder (11) situated between them and by the drying wire (F). The web (W) passes from the drying cylinder (10) to the reversing cylinder (11) as a short transfer of 80-400 mm, where a negative pressure effect produced by the runnability component (20) is applied and confined by seals of the runnability component (20) against the surfaces of the drying cylinder (10) and reversing cylinder (11).
Public/Granted literature
- US20110162230A1 Paper or Board Machine Employing a Single-Wire Draw Dryer Section Public/Granted day:2011-07-07
Information query
IPC分类:
D | 纺织;造纸 |
D21 | 造纸;纤维素的生产 |
D21F | 造纸机;用以生产纸张的方法 |
D21F9/00 | 制造连续纸幅的整套纸机 |