发明授权
- 专利标题： Method and arrangement of impingement for blowing compensation of a tendency of curling of a paper board web to be treated as well as a paper or board machine
- 专利标题（中）： 用于吹扫补偿要处理的纸板卷材卷曲趋势的冲击的方法和布置以及纸或纸板机
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申请号： US10009095申请日： 2002-03-13
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公开(公告)号： US06706150B1公开(公告)日： 2004-03-16
- 发明人: Pasi Ahonen , Harri Kiiskinen , Oleg Timofeev
- 申请人： Pasi Ahonen , Harri Kiiskinen , Oleg Timofeev
- 优先权： FI991079 19990510
- 主分类号： D21F1100
- IPC分类号： D21F1100
摘要：
An air impingement arrangement and method for compensating for the curling tendency of a paper or board web which is being treated. Air impingement is disposed in connection with a paper or board process or with its finishing process and extends across the width of the web (10) running in the vicinity thereof, forming a contact-free web treatment zone, in which process the web is dried in at least one dryer unit (3, 5, 7) that applies single-wire draw. In accordance with the invention, air impingement directed at the web (10) is produced by the air impingement arrangement (20) in the web treatment zone, said air impingement including, one following after the other, at least one hot blowing with air and at least one cold blowing with air. The invention also relates to a paper or board machine provided with this kind of air impingement arrangement.
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