发明名称 |
Twin-wire web former in a paper machine |
摘要 |
The invention is related to a twin-wire web former in a paper machine having a covering wire and a carrying wire which form a twin-wire forming zone with one another. A discharge opening of a headbox feeds a pulp suspension jet into the forming gap defined between said wires. The forming gap is immediately followed immediately by a forming shoe provided with a curved guide deck. A draining unit or units is/are provided after the forming shoe, before the first forming roll. The draining unit/units comprise(s) a press/support unit which guides the wire placed in contact with it as a straight run. The draining unit or units further comprise(s) a draining equipment provided with suction and foil equipment and placed opposite to the press/support unit, which draining equipment removes a substantial amount of water out of the web.
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申请公布号 |
US5599427(A) |
申请公布日期 |
1997.02.04 |
申请号 |
US19920850505 |
申请日期 |
1992.03.13 |
申请人 |
VALMET CORPORATION |
发明人 |
KOIVURANTA, MAURI;ODELL, MICHAEL |
分类号 |
D21F1/48;D21F9/00;(IPC1-7):D21F1/00 |
主分类号 |
D21F1/48 |
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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