发明名称 |
Process and apparatus for removing water from fibrous web using oscillatory flow-reversing air or gas |
摘要 |
A process and an apparatus for removing water from a fibrous web are disclosed. The process comprises providing a fibrous web having a moisture content from about 1% to about 99%; providing an oscillatory flow-reversing impingement gas having a pre-determined frequency; providing a gas-distributing system comprising at least one discharge outlet designed to emit the oscillatory flow-reversing impingement gas onto the web; and impinging the oscillatory flow-reversing gas onto the web through the plurality of discharge outlets, thereby removing moisture from the web.The apparatus comprises a web support designed to receive a fibrous web thereon and to carry it in a machine direction; at least one rotary valve pulse generator designed to produce oscillatory flow-reversing air or gas; and at least one gas-distributing system in fluid communication with the pulse generator for delivering the oscillatory flow-reversing air or gas to the web. The gas-distributing system terminates with at least one discharge outlet juxtaposed with the web support such that the web support and the discharge outlets form an impingement distance therebetween.
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申请公布号 |
US6393719(B1) |
申请公布日期 |
2002.05.28 |
申请号 |
US20000563594 |
申请日期 |
2000.05.03 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
STIPP GORDON KEITH |
分类号 |
D21F5/00;D21F5/18;D21F11/14;(IPC1-7):D06F58/00 |
主分类号 |
D21F5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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